Which anticoagulant is safest for frail elderly patients with nonvalvular A-fib?

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Which anticoagulant is safest for frail elderly patients with nonvalvular A-fib?

ILLUSTRATIVE CASE

A frail 76-year-old woman with a history of hypertension and hyperlipidemia presents for evaluation of palpitations. An in-office electrocardiogram reveals that the patient is in AF. Her CHA2DS2-VASc score is 4 and her HAS-BLED score is 2.2,3 Using shared decision making, you decide to start medications for her AF. You plan to initiate a beta-blocker for rate control and must now decide on anticoagulation. Which oral anticoagulant would you prescribe for this patient’s AF, given her frail status?

Frailty is defined as a state of vulnerability with a decreased ability to recover from an acute stressful event.4 The prevalence of frailty varies by the measurements used and the population studied. A 2021 meta-analysis found that frailty prevalence ranges from 12% to 24% worldwide in patients older than 50 years5 and may increase to > 30% among those ages 85 years and older.6 Frailty increases rates of AEs such as falls7 and fracture,8 leading to disability,9 decreased quality of life,10 increased utilization of health care,11 and increased mortality.12 A number of validated approaches are available to screen for and measure frailty.13-18

Given the association with negative health outcomes and high health care utilization, frailty is an important clinical factor for physicians to consider when treating elderly patients. Frailty assessment may allow for more tailored treatment choices for patients, with a potential reduction in complications. Although CHA2DS2-VASc and HAS-BLED scores assist in the decision-making process of whether to start anticoagulation, these tools do not take frailty into consideration or guide anticoagulant choice.2,3 The purpose of this study was to analyze how levels of frailty affect the association of 3 different direct oral anticoagulants (DOACs) vs warfarin with various AEs (death, stroke, or major bleeding).

STUDY SUMMARY

This DOAC rose above the others

This retrospective cohort study compared the safety of 3 DOACs—dabigatran, rivaroxaban, and apixaban—vs warfarin in Medicare beneficiaries with AF, using 1:1 propensity score (PS)–matched analysis. Eligible patients were ages 65 years or older, with a filled prescription for a DOAC or warfarin, no prior oral anticoagulant exposure in the previous 183 days, a diagnostic code of AF, and continuous enrollment in Medicare Parts A, B, and D only. Patients were excluded if they had missing demographic data, received hospice care, resided in a nursing facility at drug initiation, had another indication for anticoagulation, or had a contraindication to either a DOAC or warfarin.

Frailty was measured using a claims-based frailty index (CFI), which applies health care utilization data to estimate a frailty index, with cut points for nonfrailty, prefrailty, and frailty. The CFI score has 93 claims-based variables, including wheelchairs and durable medical equipment, open wounds, diseases such as chronic obstructive pulmonary disease and ischemic heart disease, and transportation services.15-17 In this study, nonfrailty was defined as a CFI < 0.15, prefrailty as a CFI of 0.15 to 0.24, and frailty as a CFI ≥ 0.25.

Among older patients treated with anticoagulation for atrial fibrillation, apixaban had the lowest adverse event rate vs warfarin among frail patients, compared with dabigatran and rivaroxaban.

The primary outcome—a composite endpoint of death, ischemic stroke, or major bleeding—was measured for each of the DOAC–warfarin cohorts in the overall population and stratified by frailty classification. Patients were followed until the occurrence of a study outcome, Medicare disenrollment, the end of the study period, discontinuation of the index drug (defined as > 5 days), change to a different anticoagulant, admission to a nursing facility, enrollment in hospice, initiation of dialysis, or kidney transplant. The authors conducted a PS-matched analysis to reduce any imbalances in clinical characteristics between the DOAC- and warfarin-­treated groups, as well as a sensitivity analysis to assess the strength of the data findings using different assumptions.

The authors created 3 DOAC–warfarin cohorts: dabigatran (n = 81,863) vs warfarin (n = 256,722), rivaroxaban (n = 185,011) vs warfarin (n = 228,028), and apixaban (n = 222,478) vs warfarin (n = 206,031). After PS matching, the mean age in all cohorts was 76 to 77 years, about 50% were female, and 91% were White. The mean HAS-BLED score was 2 and the mean CHA2DS2-VASc score was 4. The mean CFI was 0.19 to 0.20, defined as prefrail. Patients classified as frail were older, more likely to be female, and more likely to have greater comorbidities, higher scores on CHA2DS2-VASc and HAS-BLED, and higher health care utilization.

Continue to: In the dabigatran-warfarin...

 

 

In the dabigatran–warfarin cohort (median follow-up, 72 days), the event rate of the composite endpoint per 1000 person-years (PY) was 63.5 for dabigatran and 65.6 for warfarin (hazard ratio [HR] = 0.98; 95% CI, 0.92 to 1.05; rate difference [RD] per 1000 PY = –2.2; 95% CI, –6.5 to 2.1). A lower rate of the composite endpoint was associated with dabigatran than warfarin for the nonfrail subgroup but not the prefrail or frail groups.

In the rivaroxaban–warfarin cohort (median follow-up, 82 days), the composite endpoint rate per 1000 PY was 77.8 for rivaroxaban and 83.7 for warfarin (HR = 0.98; 95% CI, 0.94 to 1.02; RD per 1000 PY = –5.9; 95% CI, –9.4 to –2.4). When stratifying by frailty category, both dabigatran and rivaroxaban were associated with a lower composite endpoint rate than warfarin for the nonfrail population only (HR = 0.81; 95% CI, 0.68 to 0.97, and HR = 0.88; 95% CI, 0.77 to 0.99, respectively).

In the apixaban–warfarin cohort (median follow-up, 84 days), the rate of the composite endpoint per 1000 PY was 60.1 for apixaban and 92.3 for warfarin (HR = 0.68; 95% CI, 0.65 to 0.72; RD per 1000 PY = –32.2; 95% CI, –36.1 to –28.3). The beneficial association for apixaban was present in all frailty categories, with an HR of 0.61 (95% CI, 0.52 to 0.71) for nonfrail patients, 0.66 (95% CI, 0.61 to 0.70) for prefrail patients, and 0.73 (95% CI, 0.67 to 0.80) for frail patients. Apixaban was the only DOAC with a relative reduction in the hazard of death, ischemic stroke, or major bleeding among all frailty groups.

WHAT’S NEW

Only apixaban had lower AE rates vs warfarin across frailty levels

Three DOACs (dabigatran, rivaroxaban, and apixaban) reduced the risk of death, ischemic stroke, or major bleeding compared with warfarin in older adults with AF, but only apixaban was associated with a relative reduction of these adverse outcomes in patients of all frailty classifications.

CAVEATS

Important data but RCTs are needed

The power of this observational study is considerable. However, it remains a retrospective observational study. The authors attempted to account for these limitations and potential confounders by performing a PS-matched analysis and sensitivity analysis; however, these findings should be confirmed with randomized controlled trials.

Continue to: Additionally, the study...

 

 

Additionally, the study collected data on each of the DOAC–warfarin cohorts for < 90 days. Trials to address long-term outcomes are warranted.

Finally, there was no control group in comparison with anticoagulation. It is possible that choosing not to use an anticoagulant is the best choice for frail elderly patients.

CHALLENGES TO IMPLEMENTATION

Doctors need a practical frailty scale, patients need an affordable Rx

Frailty is not often considered a measurable trait. The approach used in the study to determine the CFI is not a practical clinical tool. Studies comparing a frailty calculation software application or an easily implementable survey may help bring this clinically impactful information to the hands of primary care physicians. The Clinical Frailty Scale—a brief, 7-point scale based on the physician’s clinical impression of the patient—has been found to correlate with other established frailty measures18 and might be an option for busy clinicians. However, the current study did not utilize this measurement, and the validity of its use by primary care physicians in the outpatient setting requires further study.

Cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D.

In addition, cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D. The average monthly cost of the DOACs ranges from $560 for dabigatran19 to $600 for rivaroxaban20 and $623 for apixaban.21 As always, the choice of anticoagulant therapy is a clinical judgment and a joint decision of the patient and physician.

Files
References

1. Kim DH, Pawar A, Gagne JJ, et al. Frailty and clinical outcomes of direct oral anticoagulants versus warfarin in older adults with atrial fibrillation: a cohort study. Ann Intern Med. 2021;174:1214-1223. doi: 10.7326/M20-7141

2. Zhu W, He W, Guo L, et al. The HAS-BLED score for predicting major bleeding risk in anticoagulated patients with atrial fibrillation: a systematic review and meta-analysis. Clin Cardiol. 2015;38:555-561. doi: 10.1002/clc.22435

3. Olesen JB, Lip GYH, Hansen ML, et al. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011;342:d124. doi: 10.1136/bmj.d124

4. Xue QL. The frailty syndrome: definition and natural history. Clin Geriatr Med. 2011;27:1-15. doi: 10.1016/j.cger.2010.08.009

5. O’Caoimh R, Sezgin D, O’Donovan MR, et al. Prevalence of frailty in 62 countries across the world: a systematic review and meta-analysis of population-level studies. Age Ageing. 2021;50:96-104. doi: 10.1093/ageing/afaa219

6. Campitelli MA, Bronskill SE, Hogan DB, et al. The prevalence and health consequences of frailty in a population-based older home care cohort: a comparison of different measures. BMC Geriatr. 2016;16:133. doi: 10.1186/s12877-016-0309-z

7. Kojima G. Frailty as a predictor of future falls among community-dwelling older people: a systematic review and meta-analysis. J Am Med Dir Assoc. 2015;16:1027-1033. doi: 10.1016/j.jamda. 2015.06.018

8. Kojima G. Frailty as a predictor of fractures among community-dwelling older people: a systematic review and meta-analysis. Bone. 2016;90:116-122. doi: 10.1016/j.bone.2016.06.009

9. Kojima G. Quick and simple FRAIL scale predicts incident activities of daily living (ADL) and instrumental ADL (IADL) disabilities: a systematic review and meta-analysis. J Am Med Dir Assoc. 2018;19:1063-1068. doi: 10.1016/j.jamda.2018.07.019

10. Kojima G, Liljas AEM, Iliffe S. Frailty syndrome: implications and challenges for health care policy. Risk Manag Healthc Policy. 2019;12:23-30. doi: 10.2147/RMHP.S168750

11. Roe L, Normand C, Wren MA, et al. The impact of frailty on healthcare utilisation in Ireland: evidence from The Irish Longitudinal Study on Ageing. BMC Geriatr. 2017;17:203. doi: 10.1186/s12877-017-0579-0

12. Hao Q, Zhou L, Dong B, et al. The role of frailty in predicting mortality and readmission in older adults in acute care wards: a prospective study. Sci Rep. 2019;9:1207. doi: 10.1038/s41598-018-38072-7

13. Fried LP, Tangen CM, Walston J, et al; Cardiovascular Health Study Collaborative Research Group. Frailty in older adults: evidence for a phenotype. J Gerontol A Biol Sci Med Sci. 2001;56:M146-M156. doi: 10.1093/gerona/56.3.m146

14. Ryan J, Espinoza S, Ernst ME, et al. Validation of a deficit-­accumulation frailty Index in the ASPirin in Reducing Events in the ­Elderly study and its predictive capacity for disability-free survival. J Gerontol A Biol Sci Med Sci. 2022;77:19-26. doi: 10.1093/gerona/glab225

15. Kim DH, Glynn RJ, Avorn J, et al. Validation of a claims-based frailty index against physical performance and adverse health outcomes in the Health and Retirement Study. J Gerontol A Biol Sci Med Sci. 2019;74:1271-1276. doi: 10.1093/gerona/gly197

16. Kim DH, Schneeweiss S, Glynn RJ, et al. Measuring frailty in Medicare data: development and validation of a claims-based frailty index. J Gerontol A Biol Sci Med Sci. 2018;73:980-987. doi: 10.1093/gerona/glx229

17. Claims-based frailty index. Harvard Dataverse website. 2022. Accessed April 5, 2022. https://dataverse.harvard.edu/dataverse/cfi

18. Rockwood K, Song X, MacKnight C, et al. A global clinical measure of fitness and frailty in elderly people. CMAJ. 2005;173:489-95. doi: 10.1503/cmaj.050051

19. Dabigatran. GoodRx. Accessed September 26, 2022. www.goodrx.com/dabigatran

20. Rivaroxaban. GoodRx. Accessed September 26, 2022. www.goodrx.com/rivaroxaban

21. Apixaban (Eliquis). GoodRx. Accessed September 26, 2022. www.goodrx.com/eliquis

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DEPUTY EDITOR
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ILLUSTRATIVE CASE

A frail 76-year-old woman with a history of hypertension and hyperlipidemia presents for evaluation of palpitations. An in-office electrocardiogram reveals that the patient is in AF. Her CHA2DS2-VASc score is 4 and her HAS-BLED score is 2.2,3 Using shared decision making, you decide to start medications for her AF. You plan to initiate a beta-blocker for rate control and must now decide on anticoagulation. Which oral anticoagulant would you prescribe for this patient’s AF, given her frail status?

Frailty is defined as a state of vulnerability with a decreased ability to recover from an acute stressful event.4 The prevalence of frailty varies by the measurements used and the population studied. A 2021 meta-analysis found that frailty prevalence ranges from 12% to 24% worldwide in patients older than 50 years5 and may increase to > 30% among those ages 85 years and older.6 Frailty increases rates of AEs such as falls7 and fracture,8 leading to disability,9 decreased quality of life,10 increased utilization of health care,11 and increased mortality.12 A number of validated approaches are available to screen for and measure frailty.13-18

Given the association with negative health outcomes and high health care utilization, frailty is an important clinical factor for physicians to consider when treating elderly patients. Frailty assessment may allow for more tailored treatment choices for patients, with a potential reduction in complications. Although CHA2DS2-VASc and HAS-BLED scores assist in the decision-making process of whether to start anticoagulation, these tools do not take frailty into consideration or guide anticoagulant choice.2,3 The purpose of this study was to analyze how levels of frailty affect the association of 3 different direct oral anticoagulants (DOACs) vs warfarin with various AEs (death, stroke, or major bleeding).

STUDY SUMMARY

This DOAC rose above the others

This retrospective cohort study compared the safety of 3 DOACs—dabigatran, rivaroxaban, and apixaban—vs warfarin in Medicare beneficiaries with AF, using 1:1 propensity score (PS)–matched analysis. Eligible patients were ages 65 years or older, with a filled prescription for a DOAC or warfarin, no prior oral anticoagulant exposure in the previous 183 days, a diagnostic code of AF, and continuous enrollment in Medicare Parts A, B, and D only. Patients were excluded if they had missing demographic data, received hospice care, resided in a nursing facility at drug initiation, had another indication for anticoagulation, or had a contraindication to either a DOAC or warfarin.

Frailty was measured using a claims-based frailty index (CFI), which applies health care utilization data to estimate a frailty index, with cut points for nonfrailty, prefrailty, and frailty. The CFI score has 93 claims-based variables, including wheelchairs and durable medical equipment, open wounds, diseases such as chronic obstructive pulmonary disease and ischemic heart disease, and transportation services.15-17 In this study, nonfrailty was defined as a CFI < 0.15, prefrailty as a CFI of 0.15 to 0.24, and frailty as a CFI ≥ 0.25.

Among older patients treated with anticoagulation for atrial fibrillation, apixaban had the lowest adverse event rate vs warfarin among frail patients, compared with dabigatran and rivaroxaban.

The primary outcome—a composite endpoint of death, ischemic stroke, or major bleeding—was measured for each of the DOAC–warfarin cohorts in the overall population and stratified by frailty classification. Patients were followed until the occurrence of a study outcome, Medicare disenrollment, the end of the study period, discontinuation of the index drug (defined as > 5 days), change to a different anticoagulant, admission to a nursing facility, enrollment in hospice, initiation of dialysis, or kidney transplant. The authors conducted a PS-matched analysis to reduce any imbalances in clinical characteristics between the DOAC- and warfarin-­treated groups, as well as a sensitivity analysis to assess the strength of the data findings using different assumptions.

The authors created 3 DOAC–warfarin cohorts: dabigatran (n = 81,863) vs warfarin (n = 256,722), rivaroxaban (n = 185,011) vs warfarin (n = 228,028), and apixaban (n = 222,478) vs warfarin (n = 206,031). After PS matching, the mean age in all cohorts was 76 to 77 years, about 50% were female, and 91% were White. The mean HAS-BLED score was 2 and the mean CHA2DS2-VASc score was 4. The mean CFI was 0.19 to 0.20, defined as prefrail. Patients classified as frail were older, more likely to be female, and more likely to have greater comorbidities, higher scores on CHA2DS2-VASc and HAS-BLED, and higher health care utilization.

Continue to: In the dabigatran-warfarin...

 

 

In the dabigatran–warfarin cohort (median follow-up, 72 days), the event rate of the composite endpoint per 1000 person-years (PY) was 63.5 for dabigatran and 65.6 for warfarin (hazard ratio [HR] = 0.98; 95% CI, 0.92 to 1.05; rate difference [RD] per 1000 PY = –2.2; 95% CI, –6.5 to 2.1). A lower rate of the composite endpoint was associated with dabigatran than warfarin for the nonfrail subgroup but not the prefrail or frail groups.

In the rivaroxaban–warfarin cohort (median follow-up, 82 days), the composite endpoint rate per 1000 PY was 77.8 for rivaroxaban and 83.7 for warfarin (HR = 0.98; 95% CI, 0.94 to 1.02; RD per 1000 PY = –5.9; 95% CI, –9.4 to –2.4). When stratifying by frailty category, both dabigatran and rivaroxaban were associated with a lower composite endpoint rate than warfarin for the nonfrail population only (HR = 0.81; 95% CI, 0.68 to 0.97, and HR = 0.88; 95% CI, 0.77 to 0.99, respectively).

In the apixaban–warfarin cohort (median follow-up, 84 days), the rate of the composite endpoint per 1000 PY was 60.1 for apixaban and 92.3 for warfarin (HR = 0.68; 95% CI, 0.65 to 0.72; RD per 1000 PY = –32.2; 95% CI, –36.1 to –28.3). The beneficial association for apixaban was present in all frailty categories, with an HR of 0.61 (95% CI, 0.52 to 0.71) for nonfrail patients, 0.66 (95% CI, 0.61 to 0.70) for prefrail patients, and 0.73 (95% CI, 0.67 to 0.80) for frail patients. Apixaban was the only DOAC with a relative reduction in the hazard of death, ischemic stroke, or major bleeding among all frailty groups.

WHAT’S NEW

Only apixaban had lower AE rates vs warfarin across frailty levels

Three DOACs (dabigatran, rivaroxaban, and apixaban) reduced the risk of death, ischemic stroke, or major bleeding compared with warfarin in older adults with AF, but only apixaban was associated with a relative reduction of these adverse outcomes in patients of all frailty classifications.

CAVEATS

Important data but RCTs are needed

The power of this observational study is considerable. However, it remains a retrospective observational study. The authors attempted to account for these limitations and potential confounders by performing a PS-matched analysis and sensitivity analysis; however, these findings should be confirmed with randomized controlled trials.

Continue to: Additionally, the study...

 

 

Additionally, the study collected data on each of the DOAC–warfarin cohorts for < 90 days. Trials to address long-term outcomes are warranted.

Finally, there was no control group in comparison with anticoagulation. It is possible that choosing not to use an anticoagulant is the best choice for frail elderly patients.

CHALLENGES TO IMPLEMENTATION

Doctors need a practical frailty scale, patients need an affordable Rx

Frailty is not often considered a measurable trait. The approach used in the study to determine the CFI is not a practical clinical tool. Studies comparing a frailty calculation software application or an easily implementable survey may help bring this clinically impactful information to the hands of primary care physicians. The Clinical Frailty Scale—a brief, 7-point scale based on the physician’s clinical impression of the patient—has been found to correlate with other established frailty measures18 and might be an option for busy clinicians. However, the current study did not utilize this measurement, and the validity of its use by primary care physicians in the outpatient setting requires further study.

Cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D.

In addition, cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D. The average monthly cost of the DOACs ranges from $560 for dabigatran19 to $600 for rivaroxaban20 and $623 for apixaban.21 As always, the choice of anticoagulant therapy is a clinical judgment and a joint decision of the patient and physician.

ILLUSTRATIVE CASE

A frail 76-year-old woman with a history of hypertension and hyperlipidemia presents for evaluation of palpitations. An in-office electrocardiogram reveals that the patient is in AF. Her CHA2DS2-VASc score is 4 and her HAS-BLED score is 2.2,3 Using shared decision making, you decide to start medications for her AF. You plan to initiate a beta-blocker for rate control and must now decide on anticoagulation. Which oral anticoagulant would you prescribe for this patient’s AF, given her frail status?

Frailty is defined as a state of vulnerability with a decreased ability to recover from an acute stressful event.4 The prevalence of frailty varies by the measurements used and the population studied. A 2021 meta-analysis found that frailty prevalence ranges from 12% to 24% worldwide in patients older than 50 years5 and may increase to > 30% among those ages 85 years and older.6 Frailty increases rates of AEs such as falls7 and fracture,8 leading to disability,9 decreased quality of life,10 increased utilization of health care,11 and increased mortality.12 A number of validated approaches are available to screen for and measure frailty.13-18

Given the association with negative health outcomes and high health care utilization, frailty is an important clinical factor for physicians to consider when treating elderly patients. Frailty assessment may allow for more tailored treatment choices for patients, with a potential reduction in complications. Although CHA2DS2-VASc and HAS-BLED scores assist in the decision-making process of whether to start anticoagulation, these tools do not take frailty into consideration or guide anticoagulant choice.2,3 The purpose of this study was to analyze how levels of frailty affect the association of 3 different direct oral anticoagulants (DOACs) vs warfarin with various AEs (death, stroke, or major bleeding).

STUDY SUMMARY

This DOAC rose above the others

This retrospective cohort study compared the safety of 3 DOACs—dabigatran, rivaroxaban, and apixaban—vs warfarin in Medicare beneficiaries with AF, using 1:1 propensity score (PS)–matched analysis. Eligible patients were ages 65 years or older, with a filled prescription for a DOAC or warfarin, no prior oral anticoagulant exposure in the previous 183 days, a diagnostic code of AF, and continuous enrollment in Medicare Parts A, B, and D only. Patients were excluded if they had missing demographic data, received hospice care, resided in a nursing facility at drug initiation, had another indication for anticoagulation, or had a contraindication to either a DOAC or warfarin.

Frailty was measured using a claims-based frailty index (CFI), which applies health care utilization data to estimate a frailty index, with cut points for nonfrailty, prefrailty, and frailty. The CFI score has 93 claims-based variables, including wheelchairs and durable medical equipment, open wounds, diseases such as chronic obstructive pulmonary disease and ischemic heart disease, and transportation services.15-17 In this study, nonfrailty was defined as a CFI < 0.15, prefrailty as a CFI of 0.15 to 0.24, and frailty as a CFI ≥ 0.25.

Among older patients treated with anticoagulation for atrial fibrillation, apixaban had the lowest adverse event rate vs warfarin among frail patients, compared with dabigatran and rivaroxaban.

The primary outcome—a composite endpoint of death, ischemic stroke, or major bleeding—was measured for each of the DOAC–warfarin cohorts in the overall population and stratified by frailty classification. Patients were followed until the occurrence of a study outcome, Medicare disenrollment, the end of the study period, discontinuation of the index drug (defined as > 5 days), change to a different anticoagulant, admission to a nursing facility, enrollment in hospice, initiation of dialysis, or kidney transplant. The authors conducted a PS-matched analysis to reduce any imbalances in clinical characteristics between the DOAC- and warfarin-­treated groups, as well as a sensitivity analysis to assess the strength of the data findings using different assumptions.

The authors created 3 DOAC–warfarin cohorts: dabigatran (n = 81,863) vs warfarin (n = 256,722), rivaroxaban (n = 185,011) vs warfarin (n = 228,028), and apixaban (n = 222,478) vs warfarin (n = 206,031). After PS matching, the mean age in all cohorts was 76 to 77 years, about 50% were female, and 91% were White. The mean HAS-BLED score was 2 and the mean CHA2DS2-VASc score was 4. The mean CFI was 0.19 to 0.20, defined as prefrail. Patients classified as frail were older, more likely to be female, and more likely to have greater comorbidities, higher scores on CHA2DS2-VASc and HAS-BLED, and higher health care utilization.

Continue to: In the dabigatran-warfarin...

 

 

In the dabigatran–warfarin cohort (median follow-up, 72 days), the event rate of the composite endpoint per 1000 person-years (PY) was 63.5 for dabigatran and 65.6 for warfarin (hazard ratio [HR] = 0.98; 95% CI, 0.92 to 1.05; rate difference [RD] per 1000 PY = –2.2; 95% CI, –6.5 to 2.1). A lower rate of the composite endpoint was associated with dabigatran than warfarin for the nonfrail subgroup but not the prefrail or frail groups.

In the rivaroxaban–warfarin cohort (median follow-up, 82 days), the composite endpoint rate per 1000 PY was 77.8 for rivaroxaban and 83.7 for warfarin (HR = 0.98; 95% CI, 0.94 to 1.02; RD per 1000 PY = –5.9; 95% CI, –9.4 to –2.4). When stratifying by frailty category, both dabigatran and rivaroxaban were associated with a lower composite endpoint rate than warfarin for the nonfrail population only (HR = 0.81; 95% CI, 0.68 to 0.97, and HR = 0.88; 95% CI, 0.77 to 0.99, respectively).

In the apixaban–warfarin cohort (median follow-up, 84 days), the rate of the composite endpoint per 1000 PY was 60.1 for apixaban and 92.3 for warfarin (HR = 0.68; 95% CI, 0.65 to 0.72; RD per 1000 PY = –32.2; 95% CI, –36.1 to –28.3). The beneficial association for apixaban was present in all frailty categories, with an HR of 0.61 (95% CI, 0.52 to 0.71) for nonfrail patients, 0.66 (95% CI, 0.61 to 0.70) for prefrail patients, and 0.73 (95% CI, 0.67 to 0.80) for frail patients. Apixaban was the only DOAC with a relative reduction in the hazard of death, ischemic stroke, or major bleeding among all frailty groups.

WHAT’S NEW

Only apixaban had lower AE rates vs warfarin across frailty levels

Three DOACs (dabigatran, rivaroxaban, and apixaban) reduced the risk of death, ischemic stroke, or major bleeding compared with warfarin in older adults with AF, but only apixaban was associated with a relative reduction of these adverse outcomes in patients of all frailty classifications.

CAVEATS

Important data but RCTs are needed

The power of this observational study is considerable. However, it remains a retrospective observational study. The authors attempted to account for these limitations and potential confounders by performing a PS-matched analysis and sensitivity analysis; however, these findings should be confirmed with randomized controlled trials.

Continue to: Additionally, the study...

 

 

Additionally, the study collected data on each of the DOAC–warfarin cohorts for < 90 days. Trials to address long-term outcomes are warranted.

Finally, there was no control group in comparison with anticoagulation. It is possible that choosing not to use an anticoagulant is the best choice for frail elderly patients.

CHALLENGES TO IMPLEMENTATION

Doctors need a practical frailty scale, patients need an affordable Rx

Frailty is not often considered a measurable trait. The approach used in the study to determine the CFI is not a practical clinical tool. Studies comparing a frailty calculation software application or an easily implementable survey may help bring this clinically impactful information to the hands of primary care physicians. The Clinical Frailty Scale—a brief, 7-point scale based on the physician’s clinical impression of the patient—has been found to correlate with other established frailty measures18 and might be an option for busy clinicians. However, the current study did not utilize this measurement, and the validity of its use by primary care physicians in the outpatient setting requires further study.

Cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D.

In addition, cost may be a barrier for patients younger than 65 years or for those older than 65 years who do not qualify for Medicare or do not have Medicare Part D. The average monthly cost of the DOACs ranges from $560 for dabigatran19 to $600 for rivaroxaban20 and $623 for apixaban.21 As always, the choice of anticoagulant therapy is a clinical judgment and a joint decision of the patient and physician.

References

1. Kim DH, Pawar A, Gagne JJ, et al. Frailty and clinical outcomes of direct oral anticoagulants versus warfarin in older adults with atrial fibrillation: a cohort study. Ann Intern Med. 2021;174:1214-1223. doi: 10.7326/M20-7141

2. Zhu W, He W, Guo L, et al. The HAS-BLED score for predicting major bleeding risk in anticoagulated patients with atrial fibrillation: a systematic review and meta-analysis. Clin Cardiol. 2015;38:555-561. doi: 10.1002/clc.22435

3. Olesen JB, Lip GYH, Hansen ML, et al. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011;342:d124. doi: 10.1136/bmj.d124

4. Xue QL. The frailty syndrome: definition and natural history. Clin Geriatr Med. 2011;27:1-15. doi: 10.1016/j.cger.2010.08.009

5. O’Caoimh R, Sezgin D, O’Donovan MR, et al. Prevalence of frailty in 62 countries across the world: a systematic review and meta-analysis of population-level studies. Age Ageing. 2021;50:96-104. doi: 10.1093/ageing/afaa219

6. Campitelli MA, Bronskill SE, Hogan DB, et al. The prevalence and health consequences of frailty in a population-based older home care cohort: a comparison of different measures. BMC Geriatr. 2016;16:133. doi: 10.1186/s12877-016-0309-z

7. Kojima G. Frailty as a predictor of future falls among community-dwelling older people: a systematic review and meta-analysis. J Am Med Dir Assoc. 2015;16:1027-1033. doi: 10.1016/j.jamda. 2015.06.018

8. Kojima G. Frailty as a predictor of fractures among community-dwelling older people: a systematic review and meta-analysis. Bone. 2016;90:116-122. doi: 10.1016/j.bone.2016.06.009

9. Kojima G. Quick and simple FRAIL scale predicts incident activities of daily living (ADL) and instrumental ADL (IADL) disabilities: a systematic review and meta-analysis. J Am Med Dir Assoc. 2018;19:1063-1068. doi: 10.1016/j.jamda.2018.07.019

10. Kojima G, Liljas AEM, Iliffe S. Frailty syndrome: implications and challenges for health care policy. Risk Manag Healthc Policy. 2019;12:23-30. doi: 10.2147/RMHP.S168750

11. Roe L, Normand C, Wren MA, et al. The impact of frailty on healthcare utilisation in Ireland: evidence from The Irish Longitudinal Study on Ageing. BMC Geriatr. 2017;17:203. doi: 10.1186/s12877-017-0579-0

12. Hao Q, Zhou L, Dong B, et al. The role of frailty in predicting mortality and readmission in older adults in acute care wards: a prospective study. Sci Rep. 2019;9:1207. doi: 10.1038/s41598-018-38072-7

13. Fried LP, Tangen CM, Walston J, et al; Cardiovascular Health Study Collaborative Research Group. Frailty in older adults: evidence for a phenotype. J Gerontol A Biol Sci Med Sci. 2001;56:M146-M156. doi: 10.1093/gerona/56.3.m146

14. Ryan J, Espinoza S, Ernst ME, et al. Validation of a deficit-­accumulation frailty Index in the ASPirin in Reducing Events in the ­Elderly study and its predictive capacity for disability-free survival. J Gerontol A Biol Sci Med Sci. 2022;77:19-26. doi: 10.1093/gerona/glab225

15. Kim DH, Glynn RJ, Avorn J, et al. Validation of a claims-based frailty index against physical performance and adverse health outcomes in the Health and Retirement Study. J Gerontol A Biol Sci Med Sci. 2019;74:1271-1276. doi: 10.1093/gerona/gly197

16. Kim DH, Schneeweiss S, Glynn RJ, et al. Measuring frailty in Medicare data: development and validation of a claims-based frailty index. J Gerontol A Biol Sci Med Sci. 2018;73:980-987. doi: 10.1093/gerona/glx229

17. Claims-based frailty index. Harvard Dataverse website. 2022. Accessed April 5, 2022. https://dataverse.harvard.edu/dataverse/cfi

18. Rockwood K, Song X, MacKnight C, et al. A global clinical measure of fitness and frailty in elderly people. CMAJ. 2005;173:489-95. doi: 10.1503/cmaj.050051

19. Dabigatran. GoodRx. Accessed September 26, 2022. www.goodrx.com/dabigatran

20. Rivaroxaban. GoodRx. Accessed September 26, 2022. www.goodrx.com/rivaroxaban

21. Apixaban (Eliquis). GoodRx. Accessed September 26, 2022. www.goodrx.com/eliquis

References

1. Kim DH, Pawar A, Gagne JJ, et al. Frailty and clinical outcomes of direct oral anticoagulants versus warfarin in older adults with atrial fibrillation: a cohort study. Ann Intern Med. 2021;174:1214-1223. doi: 10.7326/M20-7141

2. Zhu W, He W, Guo L, et al. The HAS-BLED score for predicting major bleeding risk in anticoagulated patients with atrial fibrillation: a systematic review and meta-analysis. Clin Cardiol. 2015;38:555-561. doi: 10.1002/clc.22435

3. Olesen JB, Lip GYH, Hansen ML, et al. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011;342:d124. doi: 10.1136/bmj.d124

4. Xue QL. The frailty syndrome: definition and natural history. Clin Geriatr Med. 2011;27:1-15. doi: 10.1016/j.cger.2010.08.009

5. O’Caoimh R, Sezgin D, O’Donovan MR, et al. Prevalence of frailty in 62 countries across the world: a systematic review and meta-analysis of population-level studies. Age Ageing. 2021;50:96-104. doi: 10.1093/ageing/afaa219

6. Campitelli MA, Bronskill SE, Hogan DB, et al. The prevalence and health consequences of frailty in a population-based older home care cohort: a comparison of different measures. BMC Geriatr. 2016;16:133. doi: 10.1186/s12877-016-0309-z

7. Kojima G. Frailty as a predictor of future falls among community-dwelling older people: a systematic review and meta-analysis. J Am Med Dir Assoc. 2015;16:1027-1033. doi: 10.1016/j.jamda. 2015.06.018

8. Kojima G. Frailty as a predictor of fractures among community-dwelling older people: a systematic review and meta-analysis. Bone. 2016;90:116-122. doi: 10.1016/j.bone.2016.06.009

9. Kojima G. Quick and simple FRAIL scale predicts incident activities of daily living (ADL) and instrumental ADL (IADL) disabilities: a systematic review and meta-analysis. J Am Med Dir Assoc. 2018;19:1063-1068. doi: 10.1016/j.jamda.2018.07.019

10. Kojima G, Liljas AEM, Iliffe S. Frailty syndrome: implications and challenges for health care policy. Risk Manag Healthc Policy. 2019;12:23-30. doi: 10.2147/RMHP.S168750

11. Roe L, Normand C, Wren MA, et al. The impact of frailty on healthcare utilisation in Ireland: evidence from The Irish Longitudinal Study on Ageing. BMC Geriatr. 2017;17:203. doi: 10.1186/s12877-017-0579-0

12. Hao Q, Zhou L, Dong B, et al. The role of frailty in predicting mortality and readmission in older adults in acute care wards: a prospective study. Sci Rep. 2019;9:1207. doi: 10.1038/s41598-018-38072-7

13. Fried LP, Tangen CM, Walston J, et al; Cardiovascular Health Study Collaborative Research Group. Frailty in older adults: evidence for a phenotype. J Gerontol A Biol Sci Med Sci. 2001;56:M146-M156. doi: 10.1093/gerona/56.3.m146

14. Ryan J, Espinoza S, Ernst ME, et al. Validation of a deficit-­accumulation frailty Index in the ASPirin in Reducing Events in the ­Elderly study and its predictive capacity for disability-free survival. J Gerontol A Biol Sci Med Sci. 2022;77:19-26. doi: 10.1093/gerona/glab225

15. Kim DH, Glynn RJ, Avorn J, et al. Validation of a claims-based frailty index against physical performance and adverse health outcomes in the Health and Retirement Study. J Gerontol A Biol Sci Med Sci. 2019;74:1271-1276. doi: 10.1093/gerona/gly197

16. Kim DH, Schneeweiss S, Glynn RJ, et al. Measuring frailty in Medicare data: development and validation of a claims-based frailty index. J Gerontol A Biol Sci Med Sci. 2018;73:980-987. doi: 10.1093/gerona/glx229

17. Claims-based frailty index. Harvard Dataverse website. 2022. Accessed April 5, 2022. https://dataverse.harvard.edu/dataverse/cfi

18. Rockwood K, Song X, MacKnight C, et al. A global clinical measure of fitness and frailty in elderly people. CMAJ. 2005;173:489-95. doi: 10.1503/cmaj.050051

19. Dabigatran. GoodRx. Accessed September 26, 2022. www.goodrx.com/dabigatran

20. Rivaroxaban. GoodRx. Accessed September 26, 2022. www.goodrx.com/rivaroxaban

21. Apixaban (Eliquis). GoodRx. Accessed September 26, 2022. www.goodrx.com/eliquis

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Inside the Article

PRACTICE CHANGER

Consider apixaban, which demonstrated a lower adverse event (AE) rate than warfarin regardless of frailty status, for anticoagulation treatment of older patients with nonvalvular atrial fibrillation (AF); by comparison, AE rates for dabigatran and rivaroxaban were lower vs warfarin only among nonfrail individuals.

STRENGTH OF RECOMMENDATION

C: Based on a retrospective observational cohort study.1

Kim DH, Pawar A, Gagne JJ, et al. Frailty and clinical outcomes of direct oral anticoagulants versus warfarin in older adults with atrial fibrillation: a cohort study. Ann Intern Med. 2021;174:1214-1223. doi: 10.7326/M20-7141

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Prednisone, colchicine equivalent in efficacy for CPP crystal arthritis

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Changed

– Prednisone appears to have the edge over colchicine for control of pain in patients with acute calcium pyrophosphate (CPP) crystal arthritis, an intensely painful rheumatic disease primarily affecting older patients.

Among 111 patients with acute CPP crystal arthritis randomized to receive either prednisone or colchicine for control of acute pain in a multicenter study, 2 days of therapy with the oral agents provided equivalent pain relief on the second day, and patients generally tolerated each agent well, reported Tristan Pascart, MD, from the Groupement Hospitalier de l’Institut Catholique de Lille (France).

Neil Osterweil/MDedge News
Dr. Tristan Pascart

“Almost three-fourths of patients are considered to be good responders to both drugs on day 3, and, maybe, safety is the key issue distinguishing the two treatments: Colchicine was generally well tolerated, but even with this very short time frame of treatment, one patient out of five had diarrhea, which is more of a concern in this elderly population at risk of dehydration,” he said in an oral abstract session at the annual meeting of the American College of Rheumatology.

In contrast, only about 6% of patients assigned to prednisone had diarrhea, and other adverse events that occurred more frequently with the corticosteroid, including hypertension, hyperglycemia, and insomnia all resolved after the therapy was stopped.
 

Common and acutely painful

Acute CPP crystal arthritis is a common complication that often occurs during hospitalization for primarily nonrheumatologic causes, Dr. Pascart said, and “in the absence of clinical trials, the management relies on expert opinion, which stems from extrapolated data from gap studies” primarily with prednisone or colchicine, Dr. Pascart said.

To fill in the knowledge gap, Dr. Pascart and colleagues conducted the COLCHICORT study to evaluate whether the two drugs were comparable in efficacy and safety for control of acute pain in a vulnerable population.

The multicenter, open-label trial included patients older than age 65 years with an estimated glomerular filtration rate above 30 mL/min per 1.73 m2 who presented with acute CPP deposition arthritis with symptoms occurring within the previous 36 hours. CPP arthritis was defined by the identification of CPP crystals on synovial fluid analysis or typical clinical presentation with evidence of chondrocalcinosis on x-rays or ultrasound.

Patients with a history of gout, cognitive decline that could impair pain assessment, or contraindications to either of the study drugs were excluded.

The participants were randomized to receive either colchicine 1.5 mg (1 mg to start, then 0.5 mg one hour later) at baseline and then 1 mg on day 1, or oral prednisone 30 mg at baseline and on day 1. The patients also received 1 g of systemic acetaminophen, and three 50-mg doses of tramadol during the first 24 hours.

Of the 111 patients randomized, 54 were assigned to receive prednisone, and 57 were assigned to receive colchicine. Baseline characteristics were similar between the groups, with a mean age of about 86 years, body mass index of around 25 kg/m2, and blood pressure in the range of 130/69 mm Hg.

For nearly half of all patients in study each arm the most painful joint was the knee, followed by wrists and ankles.

There was no difference between the groups in the primary efficacy outcome of a change at 24 hours over baseline in visual analog scale (VAS) (0-100 mm) scores, either in a per-protocol analysis or modified intention-to-treat analysis. The mean change in VAS at 24 hours in the colchicine group was –36.6 mm, compared with –37.7 mm in the prednisone group. The investigators had previously determined that any difference between the two drugs of less than 13 mm on pain VAS at 24 hours would meet the definition for equivalent efficacy.

In both groups, a majority of patients had either an improvement greater than 50% in pain VAS scores and/or a pain VAS score less than 40 mm at both 24 and 48 hours.

At 7 days of follow-up, 21.8% of patients assigned to colchicine had diarrhea, compared with 5.6% of those assigned to prednisone. Adverse events occurring more frequently with prednisone included hyperglycemia, hypertension, and insomnia.

Patients who received colchicine and were also on statins had a trend toward a higher risk for diarrhea, but the study was not adequately powered to detect an association, and the trend was not statistically significant, Dr. Pascart said.

“Taken together, safety issues suggest that prednisone should be considered as the first-line therapy in acute CPP crystal arthritis. Future research is warranted to determine factors increasing the risk of colchicine-induced diarrhea,” he concluded.
 

 

 

Both drugs are used

Sara K. Tedeschi, MD, from Brigham & Women’s Hospital in Boston, who attended the session where the data were presented, has a special clinical interest in CPP deposition disease. She applauded Dr. Pascart and colleagues for conducting a rare clinical trial in CPP crystal arthritis.

Dr. Sara K. Tedeschi

In an interview, she said that the study suggests “we can keep in mind shorter courses of treatment for acute CPP crystal arthritis; I think that’s one big takeaway from this study.”

Asked whether she would change her practice based on the findings, Dr. Tedeschi replied: “I personally am not sure that I would be moved to use prednisone more than colchicine; I actually take away from this that colchicine is equivalent to prednisone for short-term use for CPP arthritis, but I think it’s also really important to note that this is in the context of quite a lot of acetaminophen and quite a lot of tramadol, and frankly I don’t usually use tramadol with my patients, but I might consider doing that, especially as there were no delirium events in this population.”

Dr. Tedeschi was not involved in the study.

Asked the same question, Michael Toprover, MD, from New York University Langone Medical Center, a moderator of the session who was not involved in the study, said: “I usually use a combination of medications. I generally, in someone who is hospitalized in particular and is in such severe pain, use a combination of colchicine and prednisone, unless I’m worried about infection, in which case I’ll start colchicine until we’ve proven that it’s CPPD, and then I’ll add prednisone.”

The study was funded by PHRC-1 GIRCI Nord Ouest, a clinical research program funded by the Ministry of Health in France. Dr. Pascart, Dr. Tedeschi, and Dr. Toprover all reported having no relevant conflicts of interest.

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– Prednisone appears to have the edge over colchicine for control of pain in patients with acute calcium pyrophosphate (CPP) crystal arthritis, an intensely painful rheumatic disease primarily affecting older patients.

Among 111 patients with acute CPP crystal arthritis randomized to receive either prednisone or colchicine for control of acute pain in a multicenter study, 2 days of therapy with the oral agents provided equivalent pain relief on the second day, and patients generally tolerated each agent well, reported Tristan Pascart, MD, from the Groupement Hospitalier de l’Institut Catholique de Lille (France).

Neil Osterweil/MDedge News
Dr. Tristan Pascart

“Almost three-fourths of patients are considered to be good responders to both drugs on day 3, and, maybe, safety is the key issue distinguishing the two treatments: Colchicine was generally well tolerated, but even with this very short time frame of treatment, one patient out of five had diarrhea, which is more of a concern in this elderly population at risk of dehydration,” he said in an oral abstract session at the annual meeting of the American College of Rheumatology.

In contrast, only about 6% of patients assigned to prednisone had diarrhea, and other adverse events that occurred more frequently with the corticosteroid, including hypertension, hyperglycemia, and insomnia all resolved after the therapy was stopped.
 

Common and acutely painful

Acute CPP crystal arthritis is a common complication that often occurs during hospitalization for primarily nonrheumatologic causes, Dr. Pascart said, and “in the absence of clinical trials, the management relies on expert opinion, which stems from extrapolated data from gap studies” primarily with prednisone or colchicine, Dr. Pascart said.

To fill in the knowledge gap, Dr. Pascart and colleagues conducted the COLCHICORT study to evaluate whether the two drugs were comparable in efficacy and safety for control of acute pain in a vulnerable population.

The multicenter, open-label trial included patients older than age 65 years with an estimated glomerular filtration rate above 30 mL/min per 1.73 m2 who presented with acute CPP deposition arthritis with symptoms occurring within the previous 36 hours. CPP arthritis was defined by the identification of CPP crystals on synovial fluid analysis or typical clinical presentation with evidence of chondrocalcinosis on x-rays or ultrasound.

Patients with a history of gout, cognitive decline that could impair pain assessment, or contraindications to either of the study drugs were excluded.

The participants were randomized to receive either colchicine 1.5 mg (1 mg to start, then 0.5 mg one hour later) at baseline and then 1 mg on day 1, or oral prednisone 30 mg at baseline and on day 1. The patients also received 1 g of systemic acetaminophen, and three 50-mg doses of tramadol during the first 24 hours.

Of the 111 patients randomized, 54 were assigned to receive prednisone, and 57 were assigned to receive colchicine. Baseline characteristics were similar between the groups, with a mean age of about 86 years, body mass index of around 25 kg/m2, and blood pressure in the range of 130/69 mm Hg.

For nearly half of all patients in study each arm the most painful joint was the knee, followed by wrists and ankles.

There was no difference between the groups in the primary efficacy outcome of a change at 24 hours over baseline in visual analog scale (VAS) (0-100 mm) scores, either in a per-protocol analysis or modified intention-to-treat analysis. The mean change in VAS at 24 hours in the colchicine group was –36.6 mm, compared with –37.7 mm in the prednisone group. The investigators had previously determined that any difference between the two drugs of less than 13 mm on pain VAS at 24 hours would meet the definition for equivalent efficacy.

In both groups, a majority of patients had either an improvement greater than 50% in pain VAS scores and/or a pain VAS score less than 40 mm at both 24 and 48 hours.

At 7 days of follow-up, 21.8% of patients assigned to colchicine had diarrhea, compared with 5.6% of those assigned to prednisone. Adverse events occurring more frequently with prednisone included hyperglycemia, hypertension, and insomnia.

Patients who received colchicine and were also on statins had a trend toward a higher risk for diarrhea, but the study was not adequately powered to detect an association, and the trend was not statistically significant, Dr. Pascart said.

“Taken together, safety issues suggest that prednisone should be considered as the first-line therapy in acute CPP crystal arthritis. Future research is warranted to determine factors increasing the risk of colchicine-induced diarrhea,” he concluded.
 

 

 

Both drugs are used

Sara K. Tedeschi, MD, from Brigham & Women’s Hospital in Boston, who attended the session where the data were presented, has a special clinical interest in CPP deposition disease. She applauded Dr. Pascart and colleagues for conducting a rare clinical trial in CPP crystal arthritis.

Dr. Sara K. Tedeschi

In an interview, she said that the study suggests “we can keep in mind shorter courses of treatment for acute CPP crystal arthritis; I think that’s one big takeaway from this study.”

Asked whether she would change her practice based on the findings, Dr. Tedeschi replied: “I personally am not sure that I would be moved to use prednisone more than colchicine; I actually take away from this that colchicine is equivalent to prednisone for short-term use for CPP arthritis, but I think it’s also really important to note that this is in the context of quite a lot of acetaminophen and quite a lot of tramadol, and frankly I don’t usually use tramadol with my patients, but I might consider doing that, especially as there were no delirium events in this population.”

Dr. Tedeschi was not involved in the study.

Asked the same question, Michael Toprover, MD, from New York University Langone Medical Center, a moderator of the session who was not involved in the study, said: “I usually use a combination of medications. I generally, in someone who is hospitalized in particular and is in such severe pain, use a combination of colchicine and prednisone, unless I’m worried about infection, in which case I’ll start colchicine until we’ve proven that it’s CPPD, and then I’ll add prednisone.”

The study was funded by PHRC-1 GIRCI Nord Ouest, a clinical research program funded by the Ministry of Health in France. Dr. Pascart, Dr. Tedeschi, and Dr. Toprover all reported having no relevant conflicts of interest.

– Prednisone appears to have the edge over colchicine for control of pain in patients with acute calcium pyrophosphate (CPP) crystal arthritis, an intensely painful rheumatic disease primarily affecting older patients.

Among 111 patients with acute CPP crystal arthritis randomized to receive either prednisone or colchicine for control of acute pain in a multicenter study, 2 days of therapy with the oral agents provided equivalent pain relief on the second day, and patients generally tolerated each agent well, reported Tristan Pascart, MD, from the Groupement Hospitalier de l’Institut Catholique de Lille (France).

Neil Osterweil/MDedge News
Dr. Tristan Pascart

“Almost three-fourths of patients are considered to be good responders to both drugs on day 3, and, maybe, safety is the key issue distinguishing the two treatments: Colchicine was generally well tolerated, but even with this very short time frame of treatment, one patient out of five had diarrhea, which is more of a concern in this elderly population at risk of dehydration,” he said in an oral abstract session at the annual meeting of the American College of Rheumatology.

In contrast, only about 6% of patients assigned to prednisone had diarrhea, and other adverse events that occurred more frequently with the corticosteroid, including hypertension, hyperglycemia, and insomnia all resolved after the therapy was stopped.
 

Common and acutely painful

Acute CPP crystal arthritis is a common complication that often occurs during hospitalization for primarily nonrheumatologic causes, Dr. Pascart said, and “in the absence of clinical trials, the management relies on expert opinion, which stems from extrapolated data from gap studies” primarily with prednisone or colchicine, Dr. Pascart said.

To fill in the knowledge gap, Dr. Pascart and colleagues conducted the COLCHICORT study to evaluate whether the two drugs were comparable in efficacy and safety for control of acute pain in a vulnerable population.

The multicenter, open-label trial included patients older than age 65 years with an estimated glomerular filtration rate above 30 mL/min per 1.73 m2 who presented with acute CPP deposition arthritis with symptoms occurring within the previous 36 hours. CPP arthritis was defined by the identification of CPP crystals on synovial fluid analysis or typical clinical presentation with evidence of chondrocalcinosis on x-rays or ultrasound.

Patients with a history of gout, cognitive decline that could impair pain assessment, or contraindications to either of the study drugs were excluded.

The participants were randomized to receive either colchicine 1.5 mg (1 mg to start, then 0.5 mg one hour later) at baseline and then 1 mg on day 1, or oral prednisone 30 mg at baseline and on day 1. The patients also received 1 g of systemic acetaminophen, and three 50-mg doses of tramadol during the first 24 hours.

Of the 111 patients randomized, 54 were assigned to receive prednisone, and 57 were assigned to receive colchicine. Baseline characteristics were similar between the groups, with a mean age of about 86 years, body mass index of around 25 kg/m2, and blood pressure in the range of 130/69 mm Hg.

For nearly half of all patients in study each arm the most painful joint was the knee, followed by wrists and ankles.

There was no difference between the groups in the primary efficacy outcome of a change at 24 hours over baseline in visual analog scale (VAS) (0-100 mm) scores, either in a per-protocol analysis or modified intention-to-treat analysis. The mean change in VAS at 24 hours in the colchicine group was –36.6 mm, compared with –37.7 mm in the prednisone group. The investigators had previously determined that any difference between the two drugs of less than 13 mm on pain VAS at 24 hours would meet the definition for equivalent efficacy.

In both groups, a majority of patients had either an improvement greater than 50% in pain VAS scores and/or a pain VAS score less than 40 mm at both 24 and 48 hours.

At 7 days of follow-up, 21.8% of patients assigned to colchicine had diarrhea, compared with 5.6% of those assigned to prednisone. Adverse events occurring more frequently with prednisone included hyperglycemia, hypertension, and insomnia.

Patients who received colchicine and were also on statins had a trend toward a higher risk for diarrhea, but the study was not adequately powered to detect an association, and the trend was not statistically significant, Dr. Pascart said.

“Taken together, safety issues suggest that prednisone should be considered as the first-line therapy in acute CPP crystal arthritis. Future research is warranted to determine factors increasing the risk of colchicine-induced diarrhea,” he concluded.
 

 

 

Both drugs are used

Sara K. Tedeschi, MD, from Brigham & Women’s Hospital in Boston, who attended the session where the data were presented, has a special clinical interest in CPP deposition disease. She applauded Dr. Pascart and colleagues for conducting a rare clinical trial in CPP crystal arthritis.

Dr. Sara K. Tedeschi

In an interview, she said that the study suggests “we can keep in mind shorter courses of treatment for acute CPP crystal arthritis; I think that’s one big takeaway from this study.”

Asked whether she would change her practice based on the findings, Dr. Tedeschi replied: “I personally am not sure that I would be moved to use prednisone more than colchicine; I actually take away from this that colchicine is equivalent to prednisone for short-term use for CPP arthritis, but I think it’s also really important to note that this is in the context of quite a lot of acetaminophen and quite a lot of tramadol, and frankly I don’t usually use tramadol with my patients, but I might consider doing that, especially as there were no delirium events in this population.”

Dr. Tedeschi was not involved in the study.

Asked the same question, Michael Toprover, MD, from New York University Langone Medical Center, a moderator of the session who was not involved in the study, said: “I usually use a combination of medications. I generally, in someone who is hospitalized in particular and is in such severe pain, use a combination of colchicine and prednisone, unless I’m worried about infection, in which case I’ll start colchicine until we’ve proven that it’s CPPD, and then I’ll add prednisone.”

The study was funded by PHRC-1 GIRCI Nord Ouest, a clinical research program funded by the Ministry of Health in France. Dr. Pascart, Dr. Tedeschi, and Dr. Toprover all reported having no relevant conflicts of interest.

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Total replacement and fusion yield similar outcomes for ankle osteoarthritis

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Adults who underwent either total ankle replacement or ankle fusion for end-stage ankle osteoarthritis showed similar clinical scores and adverse event numbers, in a randomized controlled trial of approximately 300 patients.

Ankle osteoarthritis remains a cause of severe pain and disability. Patients are treated nonoperatively if possible, but surgery is often needed for individuals with end-stage disease, wrote Andrew Goldberg, MBBS, of University College London and colleagues in the Annals of Internal Medicine.

“Most patients with ankle arthritis respond to nonoperative treatments, such as weight loss, activity modification, support braces, and analgesia, [but] once the disease has progressed to end-stage osteoarthritis, the main surgical treatments are total ankle re-placement or ankle arthrodesis,” Dr. Goldberg said, in an interview.

In the new study, patients were randomized to receive either a total ankle replacement (TAR) or ankle fusion (AF).

“We showed that, in both treatment groups the clinical scores improved hugely, by more than three times the minimal clinically important difference,” Dr. Goldberg said in an interview.

“Although the ankle replacement arm improved, on average, by more than an extra 4 points over ankle fusion, this was not considered clinically or statistically significant,” he said.

The study is the first randomized trial to show high-quality and robust results, he noted, and findings support data from previous studies.

“Although both TAR and ankle fusion have been shown to be effective, they are very different treatments, with one fusing the bones so that there is no ankle joint movement, and the other replacing the joint with the aim of retaining ankle joint movement. It is difficult for a patient to know which treatment is more suitable for them, with most seeking guidance from their surgeon,” he said.

Generating high-quality evidence

The study, a randomized, multicenter, open-label trial known as TARVA (Total Ankle Replacement Versus Ankle Arthrodesis), aimed to compare the clinical effectiveness of the two existing publicly funded U.K. treatment options, the authors wrote.

Patients were recruited at 17 U.K. centers between March 6, 2015, and Jan. 10, 2019. The study enrolled 303 adults aged 50-85 years with end-stage ankle osteoarthritis. The mean age of the participants was 68 years; 71% were men. A total of 137 TAR patients and 144 ankle fusion patients completed their surgeries with clinical scores available for analysis. Baseline characteristics were mainly similar between the groups.

Blinding was not possible because of the nature of the procedures, but the surgeons who screened the patients were not aware of the randomization allocations, the researchers noted. A total of 33 surgeons participated in the trial, with a median number of seven patients per surgeon during the study period.

For TAR, U.K. surgeons use both two-component, fixed-bearing and three-component, mobile-bearing implants, the authors write. Ankle fusion was done using the surgeon’s usual technique of either arthroscopic-assisted or open ankle fusion.

The primary outcome was the change in the Manchester–Oxford Foot Questionnaire walking/standing (MOXFQ-W/S) domain scores from baseline to 52 weeks after surgery. The MOXFQ-W/S uses a scale of 0-100, with lower scores representing better outcomes. Secondary outcomes included change in the MOXFQ-W/S scores at 26 weeks after surgery, as well as measures of patient quality of life.

 

 

No statistically significant difference

Overall, the mean MOXFQ-W/S scores improved significantly from baseline to 52 weeks for both groups, with average improvements of 49.9 in the TAR group and 44.4 points in the AF group. The average scores at 52 weeks were 31.4 in the TAR group and 36.8 in the AF group.

The adjusted difference in score change from baseline was –5.56, showing a slightly greater degree of improvement with TAR, but this difference was not clinically or statistically significant, the researchers noted.

Adverse event numbers were similar for both procedures, with 54% of TAR patients and 53% of AF patients experiencing at least 1 adverse event during the study period. Of those, 18% of TAR patients and 24% of AF patients experienced at least 1 serious adverse event.

However, the TAR patients experienced a higher rate of wound healing complications and nerve injuries, while thromboembolism was higher in the AF patients, the researchers noted.

A prespecified subgroup analysis of patients with osteoarthritis in adjacent joints suggested a greater improvement in TAR, compared with AF, a difference that increased when fixed-bearing TAR was compared with AF, the authors wrote.

“This reinforces previous reports that suggest that the presence of adjacent joint arthritis may be an indication for ankle replacement over AF,” the authors wrote in their discussion.

“Many of these patients did not have any symptoms in the adjacent joints,” they noted.

“The presence of adjacent joint arthritis, meaning the wear and tear of the joints around the ankle joint, seemed to favor ankle replacement,” Dr. Goldberg said. Approximately 30 joints in the foot continue to move after the ankle is fused, and if these adjacent joints are not healthy before surgery [as was the case in 42% of the study patients], the results of fusion were less successful, he explained.

A post hoc analysis between TAR subtypes showed that patients who had fixed-bearing TAR had significantly greater improvements, compared with AF patients, but this difference was not observed in patients who had mobile-bearing TAR, the researchers noted.

Dr. Goldberg said it was surprising “that, in a separate analysis, we found that the fixed-bearing ankle replacement patients [who accounted for half of the implants used] improved by a much greater difference when compared to ankle fusion.”

The study findings were limited by several factors including the short follow-up and study design that allowed surgeons to choose any implant and technique, the researchers noted.

Other limitations include a lack of data on cost-effectiveness and the impact of comorbidities on outcomes, they wrote. However, the study is the first completed multicenter randomized controlled trial to compare TAR and AF procedures for end-stage ankle osteoarthritis and shows that both yield similar clinical improvements, they concluded.

Data can inform treatment discussion

The take-home messages for clinicians are that both ankle replacement and ankle fusion are effective treatments that improve patients’ quality of life, and it is important to establish the health of adjacent joints before making treatment recommendations, Dr. Goldberg said.

“Careful counseling on the relative risks of each procedure should be part of the informed consent process,” he added. Ideally, all patients seeking surgical care for ankle arthritis should have a choice between ankle replacement and ankle fusion, but sometimes there is inequity of provision of the two treatments, he noted.

“We now encourage all surgeons to work in ankle arthritis networks so that every patient, no matter where they live, can have choice about the best treatment for them,” he said.

 

 

Researchers met the challenge of surgical RCT

Randomized trials of surgical interventions are challenging to conduct, and therefore limited, wrote Bruce Sangeorzan, MD, of the University of Washington, Seattle, and colleagues in an accompanying editorial. However, the new study was strengthened by the inclusion of 17 centers for heterogeneity of implant type and surgeon experience level, the editorialists said in the Annals of Internal Medicine.

The study is especially important, because ankle arthritis treatment is very understudied, compared with hip and knee arthritis, but it has a similar impact on activity, editorial coauthor Dr. Sangeorzan said in an interview.

“Randomized controlled trials are the gold standard for comparing medical therapies,” he said, “but they are very difficult to do in surgical treatments, particularly when the two treatments can be differentiated, in this case by movement of the ankle.”

In addition, there is a strong placebo effect attached to interventions, Dr. Sangeorzan noted. “Determining best-case treatment relies on prospective research, preferably randomized. Since both ankle fusion and ankle replacement are effective therapies, a prospective randomized trial is the best way to help make treatment decisions,” he said.

The current study findings are not surprising, but they are preliminary, and 1 year of follow-up is not enough to determine effectiveness, Dr. Sangeorzan emphasized. However, “the authors have done the hard work of randomizing the patients and collecting the data, and the patients can now be followed for a longer time,” he said.

“In addition, the trial was designed with multiple secondary outcome measures, so the data can be matched up with larger trials that were not randomized to identify key elements of success for each procedure,” he noted.

The key message for clinicians is that ankle arthritis has a significant impact on patients’ lives, but there are two effective treatments that can reduce the impact of the disease, said Dr. Sangeorzan. “The data suggest that there are differences in implant design and differences in comorbidities that should influence decision-making,” he added.

Additional research is needed in the form of a longer study duration with larger cohorts, said Dr. Sangeorzan. In particular, researchers need to determine what comorbidities might drive patients to one type of care vs. another, he said. “The suggestion that [patients receiving implants with two motion segments have better outcomes than those receiving implants with a one-motion segment] also deserves further study,” he added.

The research was supported by the UK National Institute for Health and Care Research Health Technology Assessment Programme. The trial was sponsored by University College London. Dr. Goldberg disclosed grant support from NIHR HTA, as well as financial relationships with companies including Stryker, Paragon 28, and stock options with Standing CT Company, Elstree Waterfront Outpatients, and X Bolt Orthopedics.

The editorialists had no financial conflicts to disclose.

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Adults who underwent either total ankle replacement or ankle fusion for end-stage ankle osteoarthritis showed similar clinical scores and adverse event numbers, in a randomized controlled trial of approximately 300 patients.

Ankle osteoarthritis remains a cause of severe pain and disability. Patients are treated nonoperatively if possible, but surgery is often needed for individuals with end-stage disease, wrote Andrew Goldberg, MBBS, of University College London and colleagues in the Annals of Internal Medicine.

“Most patients with ankle arthritis respond to nonoperative treatments, such as weight loss, activity modification, support braces, and analgesia, [but] once the disease has progressed to end-stage osteoarthritis, the main surgical treatments are total ankle re-placement or ankle arthrodesis,” Dr. Goldberg said, in an interview.

In the new study, patients were randomized to receive either a total ankle replacement (TAR) or ankle fusion (AF).

“We showed that, in both treatment groups the clinical scores improved hugely, by more than three times the minimal clinically important difference,” Dr. Goldberg said in an interview.

“Although the ankle replacement arm improved, on average, by more than an extra 4 points over ankle fusion, this was not considered clinically or statistically significant,” he said.

The study is the first randomized trial to show high-quality and robust results, he noted, and findings support data from previous studies.

“Although both TAR and ankle fusion have been shown to be effective, they are very different treatments, with one fusing the bones so that there is no ankle joint movement, and the other replacing the joint with the aim of retaining ankle joint movement. It is difficult for a patient to know which treatment is more suitable for them, with most seeking guidance from their surgeon,” he said.

Generating high-quality evidence

The study, a randomized, multicenter, open-label trial known as TARVA (Total Ankle Replacement Versus Ankle Arthrodesis), aimed to compare the clinical effectiveness of the two existing publicly funded U.K. treatment options, the authors wrote.

Patients were recruited at 17 U.K. centers between March 6, 2015, and Jan. 10, 2019. The study enrolled 303 adults aged 50-85 years with end-stage ankle osteoarthritis. The mean age of the participants was 68 years; 71% were men. A total of 137 TAR patients and 144 ankle fusion patients completed their surgeries with clinical scores available for analysis. Baseline characteristics were mainly similar between the groups.

Blinding was not possible because of the nature of the procedures, but the surgeons who screened the patients were not aware of the randomization allocations, the researchers noted. A total of 33 surgeons participated in the trial, with a median number of seven patients per surgeon during the study period.

For TAR, U.K. surgeons use both two-component, fixed-bearing and three-component, mobile-bearing implants, the authors write. Ankle fusion was done using the surgeon’s usual technique of either arthroscopic-assisted or open ankle fusion.

The primary outcome was the change in the Manchester–Oxford Foot Questionnaire walking/standing (MOXFQ-W/S) domain scores from baseline to 52 weeks after surgery. The MOXFQ-W/S uses a scale of 0-100, with lower scores representing better outcomes. Secondary outcomes included change in the MOXFQ-W/S scores at 26 weeks after surgery, as well as measures of patient quality of life.

 

 

No statistically significant difference

Overall, the mean MOXFQ-W/S scores improved significantly from baseline to 52 weeks for both groups, with average improvements of 49.9 in the TAR group and 44.4 points in the AF group. The average scores at 52 weeks were 31.4 in the TAR group and 36.8 in the AF group.

The adjusted difference in score change from baseline was –5.56, showing a slightly greater degree of improvement with TAR, but this difference was not clinically or statistically significant, the researchers noted.

Adverse event numbers were similar for both procedures, with 54% of TAR patients and 53% of AF patients experiencing at least 1 adverse event during the study period. Of those, 18% of TAR patients and 24% of AF patients experienced at least 1 serious adverse event.

However, the TAR patients experienced a higher rate of wound healing complications and nerve injuries, while thromboembolism was higher in the AF patients, the researchers noted.

A prespecified subgroup analysis of patients with osteoarthritis in adjacent joints suggested a greater improvement in TAR, compared with AF, a difference that increased when fixed-bearing TAR was compared with AF, the authors wrote.

“This reinforces previous reports that suggest that the presence of adjacent joint arthritis may be an indication for ankle replacement over AF,” the authors wrote in their discussion.

“Many of these patients did not have any symptoms in the adjacent joints,” they noted.

“The presence of adjacent joint arthritis, meaning the wear and tear of the joints around the ankle joint, seemed to favor ankle replacement,” Dr. Goldberg said. Approximately 30 joints in the foot continue to move after the ankle is fused, and if these adjacent joints are not healthy before surgery [as was the case in 42% of the study patients], the results of fusion were less successful, he explained.

A post hoc analysis between TAR subtypes showed that patients who had fixed-bearing TAR had significantly greater improvements, compared with AF patients, but this difference was not observed in patients who had mobile-bearing TAR, the researchers noted.

Dr. Goldberg said it was surprising “that, in a separate analysis, we found that the fixed-bearing ankle replacement patients [who accounted for half of the implants used] improved by a much greater difference when compared to ankle fusion.”

The study findings were limited by several factors including the short follow-up and study design that allowed surgeons to choose any implant and technique, the researchers noted.

Other limitations include a lack of data on cost-effectiveness and the impact of comorbidities on outcomes, they wrote. However, the study is the first completed multicenter randomized controlled trial to compare TAR and AF procedures for end-stage ankle osteoarthritis and shows that both yield similar clinical improvements, they concluded.

Data can inform treatment discussion

The take-home messages for clinicians are that both ankle replacement and ankle fusion are effective treatments that improve patients’ quality of life, and it is important to establish the health of adjacent joints before making treatment recommendations, Dr. Goldberg said.

“Careful counseling on the relative risks of each procedure should be part of the informed consent process,” he added. Ideally, all patients seeking surgical care for ankle arthritis should have a choice between ankle replacement and ankle fusion, but sometimes there is inequity of provision of the two treatments, he noted.

“We now encourage all surgeons to work in ankle arthritis networks so that every patient, no matter where they live, can have choice about the best treatment for them,” he said.

 

 

Researchers met the challenge of surgical RCT

Randomized trials of surgical interventions are challenging to conduct, and therefore limited, wrote Bruce Sangeorzan, MD, of the University of Washington, Seattle, and colleagues in an accompanying editorial. However, the new study was strengthened by the inclusion of 17 centers for heterogeneity of implant type and surgeon experience level, the editorialists said in the Annals of Internal Medicine.

The study is especially important, because ankle arthritis treatment is very understudied, compared with hip and knee arthritis, but it has a similar impact on activity, editorial coauthor Dr. Sangeorzan said in an interview.

“Randomized controlled trials are the gold standard for comparing medical therapies,” he said, “but they are very difficult to do in surgical treatments, particularly when the two treatments can be differentiated, in this case by movement of the ankle.”

In addition, there is a strong placebo effect attached to interventions, Dr. Sangeorzan noted. “Determining best-case treatment relies on prospective research, preferably randomized. Since both ankle fusion and ankle replacement are effective therapies, a prospective randomized trial is the best way to help make treatment decisions,” he said.

The current study findings are not surprising, but they are preliminary, and 1 year of follow-up is not enough to determine effectiveness, Dr. Sangeorzan emphasized. However, “the authors have done the hard work of randomizing the patients and collecting the data, and the patients can now be followed for a longer time,” he said.

“In addition, the trial was designed with multiple secondary outcome measures, so the data can be matched up with larger trials that were not randomized to identify key elements of success for each procedure,” he noted.

The key message for clinicians is that ankle arthritis has a significant impact on patients’ lives, but there are two effective treatments that can reduce the impact of the disease, said Dr. Sangeorzan. “The data suggest that there are differences in implant design and differences in comorbidities that should influence decision-making,” he added.

Additional research is needed in the form of a longer study duration with larger cohorts, said Dr. Sangeorzan. In particular, researchers need to determine what comorbidities might drive patients to one type of care vs. another, he said. “The suggestion that [patients receiving implants with two motion segments have better outcomes than those receiving implants with a one-motion segment] also deserves further study,” he added.

The research was supported by the UK National Institute for Health and Care Research Health Technology Assessment Programme. The trial was sponsored by University College London. Dr. Goldberg disclosed grant support from NIHR HTA, as well as financial relationships with companies including Stryker, Paragon 28, and stock options with Standing CT Company, Elstree Waterfront Outpatients, and X Bolt Orthopedics.

The editorialists had no financial conflicts to disclose.

Adults who underwent either total ankle replacement or ankle fusion for end-stage ankle osteoarthritis showed similar clinical scores and adverse event numbers, in a randomized controlled trial of approximately 300 patients.

Ankle osteoarthritis remains a cause of severe pain and disability. Patients are treated nonoperatively if possible, but surgery is often needed for individuals with end-stage disease, wrote Andrew Goldberg, MBBS, of University College London and colleagues in the Annals of Internal Medicine.

“Most patients with ankle arthritis respond to nonoperative treatments, such as weight loss, activity modification, support braces, and analgesia, [but] once the disease has progressed to end-stage osteoarthritis, the main surgical treatments are total ankle re-placement or ankle arthrodesis,” Dr. Goldberg said, in an interview.

In the new study, patients were randomized to receive either a total ankle replacement (TAR) or ankle fusion (AF).

“We showed that, in both treatment groups the clinical scores improved hugely, by more than three times the minimal clinically important difference,” Dr. Goldberg said in an interview.

“Although the ankle replacement arm improved, on average, by more than an extra 4 points over ankle fusion, this was not considered clinically or statistically significant,” he said.

The study is the first randomized trial to show high-quality and robust results, he noted, and findings support data from previous studies.

“Although both TAR and ankle fusion have been shown to be effective, they are very different treatments, with one fusing the bones so that there is no ankle joint movement, and the other replacing the joint with the aim of retaining ankle joint movement. It is difficult for a patient to know which treatment is more suitable for them, with most seeking guidance from their surgeon,” he said.

Generating high-quality evidence

The study, a randomized, multicenter, open-label trial known as TARVA (Total Ankle Replacement Versus Ankle Arthrodesis), aimed to compare the clinical effectiveness of the two existing publicly funded U.K. treatment options, the authors wrote.

Patients were recruited at 17 U.K. centers between March 6, 2015, and Jan. 10, 2019. The study enrolled 303 adults aged 50-85 years with end-stage ankle osteoarthritis. The mean age of the participants was 68 years; 71% were men. A total of 137 TAR patients and 144 ankle fusion patients completed their surgeries with clinical scores available for analysis. Baseline characteristics were mainly similar between the groups.

Blinding was not possible because of the nature of the procedures, but the surgeons who screened the patients were not aware of the randomization allocations, the researchers noted. A total of 33 surgeons participated in the trial, with a median number of seven patients per surgeon during the study period.

For TAR, U.K. surgeons use both two-component, fixed-bearing and three-component, mobile-bearing implants, the authors write. Ankle fusion was done using the surgeon’s usual technique of either arthroscopic-assisted or open ankle fusion.

The primary outcome was the change in the Manchester–Oxford Foot Questionnaire walking/standing (MOXFQ-W/S) domain scores from baseline to 52 weeks after surgery. The MOXFQ-W/S uses a scale of 0-100, with lower scores representing better outcomes. Secondary outcomes included change in the MOXFQ-W/S scores at 26 weeks after surgery, as well as measures of patient quality of life.

 

 

No statistically significant difference

Overall, the mean MOXFQ-W/S scores improved significantly from baseline to 52 weeks for both groups, with average improvements of 49.9 in the TAR group and 44.4 points in the AF group. The average scores at 52 weeks were 31.4 in the TAR group and 36.8 in the AF group.

The adjusted difference in score change from baseline was –5.56, showing a slightly greater degree of improvement with TAR, but this difference was not clinically or statistically significant, the researchers noted.

Adverse event numbers were similar for both procedures, with 54% of TAR patients and 53% of AF patients experiencing at least 1 adverse event during the study period. Of those, 18% of TAR patients and 24% of AF patients experienced at least 1 serious adverse event.

However, the TAR patients experienced a higher rate of wound healing complications and nerve injuries, while thromboembolism was higher in the AF patients, the researchers noted.

A prespecified subgroup analysis of patients with osteoarthritis in adjacent joints suggested a greater improvement in TAR, compared with AF, a difference that increased when fixed-bearing TAR was compared with AF, the authors wrote.

“This reinforces previous reports that suggest that the presence of adjacent joint arthritis may be an indication for ankle replacement over AF,” the authors wrote in their discussion.

“Many of these patients did not have any symptoms in the adjacent joints,” they noted.

“The presence of adjacent joint arthritis, meaning the wear and tear of the joints around the ankle joint, seemed to favor ankle replacement,” Dr. Goldberg said. Approximately 30 joints in the foot continue to move after the ankle is fused, and if these adjacent joints are not healthy before surgery [as was the case in 42% of the study patients], the results of fusion were less successful, he explained.

A post hoc analysis between TAR subtypes showed that patients who had fixed-bearing TAR had significantly greater improvements, compared with AF patients, but this difference was not observed in patients who had mobile-bearing TAR, the researchers noted.

Dr. Goldberg said it was surprising “that, in a separate analysis, we found that the fixed-bearing ankle replacement patients [who accounted for half of the implants used] improved by a much greater difference when compared to ankle fusion.”

The study findings were limited by several factors including the short follow-up and study design that allowed surgeons to choose any implant and technique, the researchers noted.

Other limitations include a lack of data on cost-effectiveness and the impact of comorbidities on outcomes, they wrote. However, the study is the first completed multicenter randomized controlled trial to compare TAR and AF procedures for end-stage ankle osteoarthritis and shows that both yield similar clinical improvements, they concluded.

Data can inform treatment discussion

The take-home messages for clinicians are that both ankle replacement and ankle fusion are effective treatments that improve patients’ quality of life, and it is important to establish the health of adjacent joints before making treatment recommendations, Dr. Goldberg said.

“Careful counseling on the relative risks of each procedure should be part of the informed consent process,” he added. Ideally, all patients seeking surgical care for ankle arthritis should have a choice between ankle replacement and ankle fusion, but sometimes there is inequity of provision of the two treatments, he noted.

“We now encourage all surgeons to work in ankle arthritis networks so that every patient, no matter where they live, can have choice about the best treatment for them,” he said.

 

 

Researchers met the challenge of surgical RCT

Randomized trials of surgical interventions are challenging to conduct, and therefore limited, wrote Bruce Sangeorzan, MD, of the University of Washington, Seattle, and colleagues in an accompanying editorial. However, the new study was strengthened by the inclusion of 17 centers for heterogeneity of implant type and surgeon experience level, the editorialists said in the Annals of Internal Medicine.

The study is especially important, because ankle arthritis treatment is very understudied, compared with hip and knee arthritis, but it has a similar impact on activity, editorial coauthor Dr. Sangeorzan said in an interview.

“Randomized controlled trials are the gold standard for comparing medical therapies,” he said, “but they are very difficult to do in surgical treatments, particularly when the two treatments can be differentiated, in this case by movement of the ankle.”

In addition, there is a strong placebo effect attached to interventions, Dr. Sangeorzan noted. “Determining best-case treatment relies on prospective research, preferably randomized. Since both ankle fusion and ankle replacement are effective therapies, a prospective randomized trial is the best way to help make treatment decisions,” he said.

The current study findings are not surprising, but they are preliminary, and 1 year of follow-up is not enough to determine effectiveness, Dr. Sangeorzan emphasized. However, “the authors have done the hard work of randomizing the patients and collecting the data, and the patients can now be followed for a longer time,” he said.

“In addition, the trial was designed with multiple secondary outcome measures, so the data can be matched up with larger trials that were not randomized to identify key elements of success for each procedure,” he noted.

The key message for clinicians is that ankle arthritis has a significant impact on patients’ lives, but there are two effective treatments that can reduce the impact of the disease, said Dr. Sangeorzan. “The data suggest that there are differences in implant design and differences in comorbidities that should influence decision-making,” he added.

Additional research is needed in the form of a longer study duration with larger cohorts, said Dr. Sangeorzan. In particular, researchers need to determine what comorbidities might drive patients to one type of care vs. another, he said. “The suggestion that [patients receiving implants with two motion segments have better outcomes than those receiving implants with a one-motion segment] also deserves further study,” he added.

The research was supported by the UK National Institute for Health and Care Research Health Technology Assessment Programme. The trial was sponsored by University College London. Dr. Goldberg disclosed grant support from NIHR HTA, as well as financial relationships with companies including Stryker, Paragon 28, and stock options with Standing CT Company, Elstree Waterfront Outpatients, and X Bolt Orthopedics.

The editorialists had no financial conflicts to disclose.

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Nutrition for cognition: A missed opportunity in U.S. seniors?

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Changed

Among older adults who use the U.S. Supplemental Nutrition Assistance Program (SNAP), rates of memory decline appear to be slower than among those who don’t use the program, new research shows. Researchers assessed the memory function of more than 3,500 persons who used SNAP or did not use SNAP over a period of 20 years. They found that those who didn’t use the food benefits program experienced 2 more years of cognitive aging compared with program users.

Of the 3,555 individuals included in the study, all were eligible to use the benefits, but only 559 did, leaving 2,996 participants who did not take advantage of the program.

Low program participation levels translate into a missed opportunity to prevent dementia, said study investigator Adina Zeki Al Hazzouri, PhD, assistant professor of epidemiology at the Columbia Aging Center at Columbia University Mailman School of Public Health in New York.

She said that prior research has shown that stigma may prevent older Americans from using SNAP. “Educational programs are needed to reduce the stigma that the public holds towards SNAP use,” she said.

Policy change could increase usage among older individuals, Dr. Zeki Al Hazzouri noted. Such changes could include simplifying enrollment and reporting procedures, shortening recertification periods, and increasing benefit levels.

The study was published online in Neurology.
 

Memory preservation

Dr. Zeki Al Hazzouri and her team assessed respondents from the Health and Retirement Study (HRS), a representative sample of Americans aged 50 and older. All respondents who were eligible to participate in SNAP in 1996 were followed every 2 years until 2016.

At each assessment, HRS respondents completed memory tests, including immediate and delayed word recall. For those who were too impaired to complete the interview, proxy informants – typically, their spouses or family members – assessed the memory and cognition of their family members using validated instruments, such as the 16-item Informant Questionnaire for Cognitive Decline.

Investigators used a validated memory function composite score, which is benchmarked against the memory assessments and evaluations of the Aging, Demographics, and Memory Study (ADAMS) cohort.

The team found that compared with nonusers, SNAP users were more likely to be women, Black, and born in the southern United States. They were less likely to be married and had more chronic conditions, such as high blood pressure, diabetes, cancer, heart problems, psychiatric problems, and arthritis.

One important study limitation was that SNAP use was measured only once during the study, the investigators noted. Ideally, Dr. Zeki Al Hazzouri said, future research would examine cumulative SNAP use history and explore the pathways that might account for the association between SNAP use and memory decline.

While findings suggest that there were no significant differences in baseline memory function between SNAP users and nonusers, users experienced approximately 2 fewer years of cognitive aging over a 10-year period than those who didn’t use the program.

Dr. Zeki Al Hazzouri speculated that SNAP benefits may slow cognitive aging by contributing to overall brain health and that, in comparison with nonusers, SNAP users absorb more nutrients, which promote neuronal integrity.

The investigators theorized that SNAP benefits may reduce stress from financial hardship, which has been linked to premature cognitive aging in other research.

“SNAP may also increase the purchasing power and investment in other health preserving behaviors, but also resulting in better access to care, which may in turn result in better disease management and management of risk factors for cognitive function,” the investigators wrote.
 

 

 

An underutilized program

In an accompanying editorial, Steven Albert, PhD, Philip B. Hallen Endowed Chair in Community Health and Social Justice at the University of Pittsburgh, noted that in 2020, among households with people aged 50 and older in the United States, more than 9 million Americans experienced food insecurity.

Furthermore, he pointed out, research from 2018 showed that 71% of people aged 60 and older who met income eligibility for SNAP did not participate in the program. “SNAP is an underutilized food security program involving substantial income supplements for older people with low incomes.

“Against the backdrop of so many failures of pharmacotherapy for dementia and the so far inexorable increase in the prevalence of dementia due to population aging, are we missing an opportunity to support cognitive health by failing to enroll the 14 million Americans who are over age 60 and eligible for SNAP but who do not participate?” Dr. Albert asked. He suggested that it would be helpful to determine this through a randomized promotion trial.

The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

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Among older adults who use the U.S. Supplemental Nutrition Assistance Program (SNAP), rates of memory decline appear to be slower than among those who don’t use the program, new research shows. Researchers assessed the memory function of more than 3,500 persons who used SNAP or did not use SNAP over a period of 20 years. They found that those who didn’t use the food benefits program experienced 2 more years of cognitive aging compared with program users.

Of the 3,555 individuals included in the study, all were eligible to use the benefits, but only 559 did, leaving 2,996 participants who did not take advantage of the program.

Low program participation levels translate into a missed opportunity to prevent dementia, said study investigator Adina Zeki Al Hazzouri, PhD, assistant professor of epidemiology at the Columbia Aging Center at Columbia University Mailman School of Public Health in New York.

She said that prior research has shown that stigma may prevent older Americans from using SNAP. “Educational programs are needed to reduce the stigma that the public holds towards SNAP use,” she said.

Policy change could increase usage among older individuals, Dr. Zeki Al Hazzouri noted. Such changes could include simplifying enrollment and reporting procedures, shortening recertification periods, and increasing benefit levels.

The study was published online in Neurology.
 

Memory preservation

Dr. Zeki Al Hazzouri and her team assessed respondents from the Health and Retirement Study (HRS), a representative sample of Americans aged 50 and older. All respondents who were eligible to participate in SNAP in 1996 were followed every 2 years until 2016.

At each assessment, HRS respondents completed memory tests, including immediate and delayed word recall. For those who were too impaired to complete the interview, proxy informants – typically, their spouses or family members – assessed the memory and cognition of their family members using validated instruments, such as the 16-item Informant Questionnaire for Cognitive Decline.

Investigators used a validated memory function composite score, which is benchmarked against the memory assessments and evaluations of the Aging, Demographics, and Memory Study (ADAMS) cohort.

The team found that compared with nonusers, SNAP users were more likely to be women, Black, and born in the southern United States. They were less likely to be married and had more chronic conditions, such as high blood pressure, diabetes, cancer, heart problems, psychiatric problems, and arthritis.

One important study limitation was that SNAP use was measured only once during the study, the investigators noted. Ideally, Dr. Zeki Al Hazzouri said, future research would examine cumulative SNAP use history and explore the pathways that might account for the association between SNAP use and memory decline.

While findings suggest that there were no significant differences in baseline memory function between SNAP users and nonusers, users experienced approximately 2 fewer years of cognitive aging over a 10-year period than those who didn’t use the program.

Dr. Zeki Al Hazzouri speculated that SNAP benefits may slow cognitive aging by contributing to overall brain health and that, in comparison with nonusers, SNAP users absorb more nutrients, which promote neuronal integrity.

The investigators theorized that SNAP benefits may reduce stress from financial hardship, which has been linked to premature cognitive aging in other research.

“SNAP may also increase the purchasing power and investment in other health preserving behaviors, but also resulting in better access to care, which may in turn result in better disease management and management of risk factors for cognitive function,” the investigators wrote.
 

 

 

An underutilized program

In an accompanying editorial, Steven Albert, PhD, Philip B. Hallen Endowed Chair in Community Health and Social Justice at the University of Pittsburgh, noted that in 2020, among households with people aged 50 and older in the United States, more than 9 million Americans experienced food insecurity.

Furthermore, he pointed out, research from 2018 showed that 71% of people aged 60 and older who met income eligibility for SNAP did not participate in the program. “SNAP is an underutilized food security program involving substantial income supplements for older people with low incomes.

“Against the backdrop of so many failures of pharmacotherapy for dementia and the so far inexorable increase in the prevalence of dementia due to population aging, are we missing an opportunity to support cognitive health by failing to enroll the 14 million Americans who are over age 60 and eligible for SNAP but who do not participate?” Dr. Albert asked. He suggested that it would be helpful to determine this through a randomized promotion trial.

The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Among older adults who use the U.S. Supplemental Nutrition Assistance Program (SNAP), rates of memory decline appear to be slower than among those who don’t use the program, new research shows. Researchers assessed the memory function of more than 3,500 persons who used SNAP or did not use SNAP over a period of 20 years. They found that those who didn’t use the food benefits program experienced 2 more years of cognitive aging compared with program users.

Of the 3,555 individuals included in the study, all were eligible to use the benefits, but only 559 did, leaving 2,996 participants who did not take advantage of the program.

Low program participation levels translate into a missed opportunity to prevent dementia, said study investigator Adina Zeki Al Hazzouri, PhD, assistant professor of epidemiology at the Columbia Aging Center at Columbia University Mailman School of Public Health in New York.

She said that prior research has shown that stigma may prevent older Americans from using SNAP. “Educational programs are needed to reduce the stigma that the public holds towards SNAP use,” she said.

Policy change could increase usage among older individuals, Dr. Zeki Al Hazzouri noted. Such changes could include simplifying enrollment and reporting procedures, shortening recertification periods, and increasing benefit levels.

The study was published online in Neurology.
 

Memory preservation

Dr. Zeki Al Hazzouri and her team assessed respondents from the Health and Retirement Study (HRS), a representative sample of Americans aged 50 and older. All respondents who were eligible to participate in SNAP in 1996 were followed every 2 years until 2016.

At each assessment, HRS respondents completed memory tests, including immediate and delayed word recall. For those who were too impaired to complete the interview, proxy informants – typically, their spouses or family members – assessed the memory and cognition of their family members using validated instruments, such as the 16-item Informant Questionnaire for Cognitive Decline.

Investigators used a validated memory function composite score, which is benchmarked against the memory assessments and evaluations of the Aging, Demographics, and Memory Study (ADAMS) cohort.

The team found that compared with nonusers, SNAP users were more likely to be women, Black, and born in the southern United States. They were less likely to be married and had more chronic conditions, such as high blood pressure, diabetes, cancer, heart problems, psychiatric problems, and arthritis.

One important study limitation was that SNAP use was measured only once during the study, the investigators noted. Ideally, Dr. Zeki Al Hazzouri said, future research would examine cumulative SNAP use history and explore the pathways that might account for the association between SNAP use and memory decline.

While findings suggest that there were no significant differences in baseline memory function between SNAP users and nonusers, users experienced approximately 2 fewer years of cognitive aging over a 10-year period than those who didn’t use the program.

Dr. Zeki Al Hazzouri speculated that SNAP benefits may slow cognitive aging by contributing to overall brain health and that, in comparison with nonusers, SNAP users absorb more nutrients, which promote neuronal integrity.

The investigators theorized that SNAP benefits may reduce stress from financial hardship, which has been linked to premature cognitive aging in other research.

“SNAP may also increase the purchasing power and investment in other health preserving behaviors, but also resulting in better access to care, which may in turn result in better disease management and management of risk factors for cognitive function,” the investigators wrote.
 

 

 

An underutilized program

In an accompanying editorial, Steven Albert, PhD, Philip B. Hallen Endowed Chair in Community Health and Social Justice at the University of Pittsburgh, noted that in 2020, among households with people aged 50 and older in the United States, more than 9 million Americans experienced food insecurity.

Furthermore, he pointed out, research from 2018 showed that 71% of people aged 60 and older who met income eligibility for SNAP did not participate in the program. “SNAP is an underutilized food security program involving substantial income supplements for older people with low incomes.

“Against the backdrop of so many failures of pharmacotherapy for dementia and the so far inexorable increase in the prevalence of dementia due to population aging, are we missing an opportunity to support cognitive health by failing to enroll the 14 million Americans who are over age 60 and eligible for SNAP but who do not participate?” Dr. Albert asked. He suggested that it would be helpful to determine this through a randomized promotion trial.

The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

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Does subclinical hyperthyroidism raise fracture risk?

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People with subclinical hyperthyroidism are at 34% greater risk of experiencing a fracture compared with those with normal thyroid function, new research shows.

The finding, from a study of nearly 11,000 middle-aged men and women followed for a median of 2 decades, “highlights a potential role for more aggressive screening and monitoring of patients with subclinical hyperthyroidism to prevent bone mineral disease,” the researchers wrote.

Primary care physicians “should be more aware of the risks for fracture among persons with subclinical hyperthyroidism in the ambulatory setting,” Natalie R. Daya, a PhD student in epidemiology at Johns Hopkins Bloomberg School of Public Health, Baltimore, and first author of the study, told this news organization.

Ms. Daya and her colleagues published their findings in JAMA Network Open.

 

Building on earlier findings

The results agree with previous work, including a meta-analysis of 13 prospective cohort studies of 70,289 primarily White individuals with an average age of 64 years, which found that subclinical hyperthyroidism was associated with a modestly increased risk for fractures, the researchers noted.

“Our study extends these findings to a younger, community-based cohort that included both Black and White participants, included extensive adjustment for potential confounders, and had a longer follow-up period (median follow-up of 21 years vs. 12 years),” they wrote.

The study included 10,946 participants in the Atherosclerosis Risk in Communities Study who were recruited in Washington County, Maryland; Forsyth County, North Carolina; Jackson, Mississippi; and the suburbs of Minneapolis.

Baseline thyroid function was measured in blood samples collected during the second visit, which occurred between 1990 and 1992. No participants in the new analysis took thyroid medications or had a history of hospitalization for fractures at baseline, and all identified as Black or White. The mean age was 57 years, 24% were Black, and 54.3% were female.

Subclinical hyperthyroidism was defined as a thyrotropin level less than 0.56 mIU/L; subclinical hypothyroidism as a thyrotropin level greater than 5.1 mIU/L; and normal thyroid function as a thyrotropin level between 0.56 and 5.1 mIU/L, with normal free thyroxine levels of 0.85-1.4 ng/dL.

The vast majority (93%) of participants had normal thyroid function, 2.6% had subclinical hyperthyroidism, and 4.4% had subclinical hypothyroidism, according to the researchers.

Median follow-up was 21 years. The researchers identified 3,556 incident fractures, detected with hospitalization discharge codes through 2019 and inpatient and Medicare claims data through 2018, for a rate of 167.1 per 10,000 person-years.

Adjusted hazard ratios for fracture were 1.34 (95% confidence interval [CI], 1.09-1.65) for people with subclinical hyperthyroidism and 0.90 (95% CI, 0.77-1.05) for those with subclinical hypothyroidism, compared with those with normal thyroid function.

Most fractures occurred in either the hip (14.1%) or spine (13.8%), according to the researchers.

Limitations included a lack of thyroid function data during the follow-up period and lack of data on bone mineral density, the researchers wrote.
 

 

 

‘An important risk factor’

Endocrinologist Michael McClung, MD, founding and emeritus director of the Oregon Osteoporosis Center, Portland, who was not involved in the study, pointed out that both subclinical hypothyroidism and subclinical hyperthyroidism have been linked to greater risk for cardiovascular disease as well as fracture.

The new paper underscores that subclinical hyperthyroidism “should be included as an important risk factor” for fracture as well as cardiovascular risk, Dr. McClung said in an interview. In considering whether to treat osteoporosis, subclinical hyperthyroidism “may be enough to tip the balance in favor of pharmacological therapy,” he added.

Thyroid-stimulating hormone (TSH) tests to assess thyroid function are typically ordered only if a patient has symptoms of hyperthyroidism or hypothyroidism, Ms. Daya said. Depending on the cause and severity of a low TSH level, a physician may prescribe methimazole or radioactive iodine therapy to reduce the production of thyroxine, she said.

However, well-designed studies are needed to evaluate whether treatment of subclinical thyroid dysfunction reduces the risk for fracture or cardiovascular problems and assess downsides such as side effects, costs, and psychological harm, Dr. McClung noted.

The U.S. Preventive Services Task Force concluded in 2015 that the data were insufficient to recommend screening for thyroid dysfunction in adults without symptoms. As of a year ago, no new evidence has emerged to support an update, according to the task force’s website.

“Until those studies are available, selective screening of thyroid function should be considered in all patients undergoing risk assessment for cardiovascular disease or skeletal health,” Dr. McClung said.

The Atherosclerosis Risk in Communities Study has been funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health (NIH) and the U.S. Department of Health and Human Services. Ms. Daya and four study authors reported receiving NIH grants during the study period. Dr. McClung reported no relevant financial conflicts of interest.

A version of this article first appeared on Medscape.com.

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People with subclinical hyperthyroidism are at 34% greater risk of experiencing a fracture compared with those with normal thyroid function, new research shows.

The finding, from a study of nearly 11,000 middle-aged men and women followed for a median of 2 decades, “highlights a potential role for more aggressive screening and monitoring of patients with subclinical hyperthyroidism to prevent bone mineral disease,” the researchers wrote.

Primary care physicians “should be more aware of the risks for fracture among persons with subclinical hyperthyroidism in the ambulatory setting,” Natalie R. Daya, a PhD student in epidemiology at Johns Hopkins Bloomberg School of Public Health, Baltimore, and first author of the study, told this news organization.

Ms. Daya and her colleagues published their findings in JAMA Network Open.

 

Building on earlier findings

The results agree with previous work, including a meta-analysis of 13 prospective cohort studies of 70,289 primarily White individuals with an average age of 64 years, which found that subclinical hyperthyroidism was associated with a modestly increased risk for fractures, the researchers noted.

“Our study extends these findings to a younger, community-based cohort that included both Black and White participants, included extensive adjustment for potential confounders, and had a longer follow-up period (median follow-up of 21 years vs. 12 years),” they wrote.

The study included 10,946 participants in the Atherosclerosis Risk in Communities Study who were recruited in Washington County, Maryland; Forsyth County, North Carolina; Jackson, Mississippi; and the suburbs of Minneapolis.

Baseline thyroid function was measured in blood samples collected during the second visit, which occurred between 1990 and 1992. No participants in the new analysis took thyroid medications or had a history of hospitalization for fractures at baseline, and all identified as Black or White. The mean age was 57 years, 24% were Black, and 54.3% were female.

Subclinical hyperthyroidism was defined as a thyrotropin level less than 0.56 mIU/L; subclinical hypothyroidism as a thyrotropin level greater than 5.1 mIU/L; and normal thyroid function as a thyrotropin level between 0.56 and 5.1 mIU/L, with normal free thyroxine levels of 0.85-1.4 ng/dL.

The vast majority (93%) of participants had normal thyroid function, 2.6% had subclinical hyperthyroidism, and 4.4% had subclinical hypothyroidism, according to the researchers.

Median follow-up was 21 years. The researchers identified 3,556 incident fractures, detected with hospitalization discharge codes through 2019 and inpatient and Medicare claims data through 2018, for a rate of 167.1 per 10,000 person-years.

Adjusted hazard ratios for fracture were 1.34 (95% confidence interval [CI], 1.09-1.65) for people with subclinical hyperthyroidism and 0.90 (95% CI, 0.77-1.05) for those with subclinical hypothyroidism, compared with those with normal thyroid function.

Most fractures occurred in either the hip (14.1%) or spine (13.8%), according to the researchers.

Limitations included a lack of thyroid function data during the follow-up period and lack of data on bone mineral density, the researchers wrote.
 

 

 

‘An important risk factor’

Endocrinologist Michael McClung, MD, founding and emeritus director of the Oregon Osteoporosis Center, Portland, who was not involved in the study, pointed out that both subclinical hypothyroidism and subclinical hyperthyroidism have been linked to greater risk for cardiovascular disease as well as fracture.

The new paper underscores that subclinical hyperthyroidism “should be included as an important risk factor” for fracture as well as cardiovascular risk, Dr. McClung said in an interview. In considering whether to treat osteoporosis, subclinical hyperthyroidism “may be enough to tip the balance in favor of pharmacological therapy,” he added.

Thyroid-stimulating hormone (TSH) tests to assess thyroid function are typically ordered only if a patient has symptoms of hyperthyroidism or hypothyroidism, Ms. Daya said. Depending on the cause and severity of a low TSH level, a physician may prescribe methimazole or radioactive iodine therapy to reduce the production of thyroxine, she said.

However, well-designed studies are needed to evaluate whether treatment of subclinical thyroid dysfunction reduces the risk for fracture or cardiovascular problems and assess downsides such as side effects, costs, and psychological harm, Dr. McClung noted.

The U.S. Preventive Services Task Force concluded in 2015 that the data were insufficient to recommend screening for thyroid dysfunction in adults without symptoms. As of a year ago, no new evidence has emerged to support an update, according to the task force’s website.

“Until those studies are available, selective screening of thyroid function should be considered in all patients undergoing risk assessment for cardiovascular disease or skeletal health,” Dr. McClung said.

The Atherosclerosis Risk in Communities Study has been funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health (NIH) and the U.S. Department of Health and Human Services. Ms. Daya and four study authors reported receiving NIH grants during the study period. Dr. McClung reported no relevant financial conflicts of interest.

A version of this article first appeared on Medscape.com.

 

People with subclinical hyperthyroidism are at 34% greater risk of experiencing a fracture compared with those with normal thyroid function, new research shows.

The finding, from a study of nearly 11,000 middle-aged men and women followed for a median of 2 decades, “highlights a potential role for more aggressive screening and monitoring of patients with subclinical hyperthyroidism to prevent bone mineral disease,” the researchers wrote.

Primary care physicians “should be more aware of the risks for fracture among persons with subclinical hyperthyroidism in the ambulatory setting,” Natalie R. Daya, a PhD student in epidemiology at Johns Hopkins Bloomberg School of Public Health, Baltimore, and first author of the study, told this news organization.

Ms. Daya and her colleagues published their findings in JAMA Network Open.

 

Building on earlier findings

The results agree with previous work, including a meta-analysis of 13 prospective cohort studies of 70,289 primarily White individuals with an average age of 64 years, which found that subclinical hyperthyroidism was associated with a modestly increased risk for fractures, the researchers noted.

“Our study extends these findings to a younger, community-based cohort that included both Black and White participants, included extensive adjustment for potential confounders, and had a longer follow-up period (median follow-up of 21 years vs. 12 years),” they wrote.

The study included 10,946 participants in the Atherosclerosis Risk in Communities Study who were recruited in Washington County, Maryland; Forsyth County, North Carolina; Jackson, Mississippi; and the suburbs of Minneapolis.

Baseline thyroid function was measured in blood samples collected during the second visit, which occurred between 1990 and 1992. No participants in the new analysis took thyroid medications or had a history of hospitalization for fractures at baseline, and all identified as Black or White. The mean age was 57 years, 24% were Black, and 54.3% were female.

Subclinical hyperthyroidism was defined as a thyrotropin level less than 0.56 mIU/L; subclinical hypothyroidism as a thyrotropin level greater than 5.1 mIU/L; and normal thyroid function as a thyrotropin level between 0.56 and 5.1 mIU/L, with normal free thyroxine levels of 0.85-1.4 ng/dL.

The vast majority (93%) of participants had normal thyroid function, 2.6% had subclinical hyperthyroidism, and 4.4% had subclinical hypothyroidism, according to the researchers.

Median follow-up was 21 years. The researchers identified 3,556 incident fractures, detected with hospitalization discharge codes through 2019 and inpatient and Medicare claims data through 2018, for a rate of 167.1 per 10,000 person-years.

Adjusted hazard ratios for fracture were 1.34 (95% confidence interval [CI], 1.09-1.65) for people with subclinical hyperthyroidism and 0.90 (95% CI, 0.77-1.05) for those with subclinical hypothyroidism, compared with those with normal thyroid function.

Most fractures occurred in either the hip (14.1%) or spine (13.8%), according to the researchers.

Limitations included a lack of thyroid function data during the follow-up period and lack of data on bone mineral density, the researchers wrote.
 

 

 

‘An important risk factor’

Endocrinologist Michael McClung, MD, founding and emeritus director of the Oregon Osteoporosis Center, Portland, who was not involved in the study, pointed out that both subclinical hypothyroidism and subclinical hyperthyroidism have been linked to greater risk for cardiovascular disease as well as fracture.

The new paper underscores that subclinical hyperthyroidism “should be included as an important risk factor” for fracture as well as cardiovascular risk, Dr. McClung said in an interview. In considering whether to treat osteoporosis, subclinical hyperthyroidism “may be enough to tip the balance in favor of pharmacological therapy,” he added.

Thyroid-stimulating hormone (TSH) tests to assess thyroid function are typically ordered only if a patient has symptoms of hyperthyroidism or hypothyroidism, Ms. Daya said. Depending on the cause and severity of a low TSH level, a physician may prescribe methimazole or radioactive iodine therapy to reduce the production of thyroxine, she said.

However, well-designed studies are needed to evaluate whether treatment of subclinical thyroid dysfunction reduces the risk for fracture or cardiovascular problems and assess downsides such as side effects, costs, and psychological harm, Dr. McClung noted.

The U.S. Preventive Services Task Force concluded in 2015 that the data were insufficient to recommend screening for thyroid dysfunction in adults without symptoms. As of a year ago, no new evidence has emerged to support an update, according to the task force’s website.

“Until those studies are available, selective screening of thyroid function should be considered in all patients undergoing risk assessment for cardiovascular disease or skeletal health,” Dr. McClung said.

The Atherosclerosis Risk in Communities Study has been funded by the National Heart, Lung, and Blood Institute of the National Institutes of Health (NIH) and the U.S. Department of Health and Human Services. Ms. Daya and four study authors reported receiving NIH grants during the study period. Dr. McClung reported no relevant financial conflicts of interest.

A version of this article first appeared on Medscape.com.

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Daily aspirin fails to reduce risk of fractures in older adults

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Low-dose aspirin taken daily fails to reduce the risk of fractures and increases the risk of serious falls in older adults, a new study finds.

Previous research suggests that aspirin may reduce the risk of fragility fractures by delaying bone loss, but the direct effects of aspirin on bone microarchitecture and the association between aspirin use and fracture risk in humans has not been explored, corresponding author Anna L. Barker, PhD, and colleagues wrote in their paper published in JAMA Internal Medicine.

Dr. Barker, who is executive director of research and innovation for Silverchain (a senior care program), said, in an interview, that she and her coauthors hypothesized “that aspirin could reduce both falls and fractures by reducing cardiovascular-associated physical and cognitive impairments and the anti-inflammatory properties mediating bone remodeling.”
 

Study methods and results

In the ASPREE-FRACTURE substudy, the authors examined the impact of daily low-dose aspirin (100 mg) on incidence of any fracture in more than 16,000 community-dwelling adults aged 70 years and older. A secondary endpoint was the incidence of serious falls, defined as falls requiring a hospital visit. Individuals with chronic illness and cardiovascular or cerebrovascular disease were excluded, as were those with dementia or other cognitive impairment, or a physical disability.

The study population included 16,703 participants enrolled in the larger Aspirin in Reducing Events in the Elderly (ASPREE) clinical trial between 2010 and 2014. Of these, 8,322 were randomized to aspirin and 8,381 to a placebo. The median age was 74 years, and 55% of the participants were women.

Over a median follow-up of 4.6 years (76,219 total person-years), the risk of first fracture was similar between the aspirin and placebo groups (hazard ratio, 0.97), but the risk of serious falls was significantly higher in the aspirin group (884 falls vs. 804 falls, P = .01).

The incidence of first fracture was similar between the aspirin and placebo groups (813 vs. 718), as was the incidence of all fractures (1,394 and 1,471, respectively).

The results for both fractures and falls were essentially unchanged in a multivariate analysis controlling for variables known to affect fracture and fall risk and remained similar for different types of fractures (hip, trauma-related, nonpathological) as well, the researchers noted.

In their discussion, the researchers wrote that the clinical significance of the study is the inability of aspirin to reduce the risk of fractures in otherwise healthy older adults. They expressed surprise at the increase in serious falls, citing their hypothesis that the antiplatelet effects of aspirin may reduce cardiovascular and cerebrovascular events, thereby slowing physical decline and decreasing fall risk.

The increased risk of serious falls was not accompanied by an increase in fractures, and the increased fall risk was similar across subgroups of aspirin users, the researchers said.

Low-dose aspirin’s failure to reduce the risk of fractures but increasing the risk of serious falls adds to evidence that this agent provides little favorable benefit in a healthy, White older adult population.

The study findings were limited by several factors including the relatively homogeneous older and healthy population, and possible insufficient study duration to allow for changes in fracture and fall risk, the researchers noted. Other potential limitations include that the dose of aspirin used in the study was too low to affect bone remodeling and the lack of data on bone density, rheumatoid arthritis, and osteoporosis, they said.

However, the results were strengthened by the large sample size and high participant retention rate, and represent the first known examination of data from a randomized, controlled trial of the effect of aspirin on fractures, they added.
 

 

 

Setting the stage for more research

Overall, “This study adds to the growing body of evidence from other studies that the use of aspirin in people who do not have a risk of cardiovascular disease or stroke provides little benefit,” said Dr. Barker, who is also a professor at Monash University, Melbourne, Australia. However, “Older adults with a medical reason to take aspirin should continue to do so,” she emphasized.

“The most important thing the study showed is the primary endpoint, which was that aspirin use does not have an effect on fracture risk,” said Neil Skolnik, MD, of Sidney Kimmel Medical College, Philadelphia, in an interview.

“The increase in serious falls, as defined by a fall resulting in a visit to a hospital, is likely due to an increased risk of bleeding after a fall on aspirin,” said Dr. Skolnik, who was not involved in the study. Dr. Skolnik added that the current study findings support the current recommendations of the United States Preventive Services Task Force, which he quoted as follows, “The USPSTF recommends against initiating low-dose aspirin use for the primary prevention of CVD in adults 60 years or older.”

The study was supported by the National Institute on Aging and the National Cancer Institute at the National Institutes of Health; the National Health and Medical Research Council (Australia); Monash University; and the Victorian Cancer Agency. Lead author Dr. Barker was supported in part by the NHMRC and also disclosed grants from the NHMRC outside the current study. The ASPREE substudy also was supported by the University of Pittsburgh Claude D. Pepper Older American Independence Center and the Wake Forest University Claude D. Pepper Older Americans Independence Center. Bayer AG provided the aspirin used in the study but had no other role. Dr. Skolnik had no financial conflicts to disclose, but he serves on the editorial advisory board of Family Practice News.

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Low-dose aspirin taken daily fails to reduce the risk of fractures and increases the risk of serious falls in older adults, a new study finds.

Previous research suggests that aspirin may reduce the risk of fragility fractures by delaying bone loss, but the direct effects of aspirin on bone microarchitecture and the association between aspirin use and fracture risk in humans has not been explored, corresponding author Anna L. Barker, PhD, and colleagues wrote in their paper published in JAMA Internal Medicine.

Dr. Barker, who is executive director of research and innovation for Silverchain (a senior care program), said, in an interview, that she and her coauthors hypothesized “that aspirin could reduce both falls and fractures by reducing cardiovascular-associated physical and cognitive impairments and the anti-inflammatory properties mediating bone remodeling.”
 

Study methods and results

In the ASPREE-FRACTURE substudy, the authors examined the impact of daily low-dose aspirin (100 mg) on incidence of any fracture in more than 16,000 community-dwelling adults aged 70 years and older. A secondary endpoint was the incidence of serious falls, defined as falls requiring a hospital visit. Individuals with chronic illness and cardiovascular or cerebrovascular disease were excluded, as were those with dementia or other cognitive impairment, or a physical disability.

The study population included 16,703 participants enrolled in the larger Aspirin in Reducing Events in the Elderly (ASPREE) clinical trial between 2010 and 2014. Of these, 8,322 were randomized to aspirin and 8,381 to a placebo. The median age was 74 years, and 55% of the participants were women.

Over a median follow-up of 4.6 years (76,219 total person-years), the risk of first fracture was similar between the aspirin and placebo groups (hazard ratio, 0.97), but the risk of serious falls was significantly higher in the aspirin group (884 falls vs. 804 falls, P = .01).

The incidence of first fracture was similar between the aspirin and placebo groups (813 vs. 718), as was the incidence of all fractures (1,394 and 1,471, respectively).

The results for both fractures and falls were essentially unchanged in a multivariate analysis controlling for variables known to affect fracture and fall risk and remained similar for different types of fractures (hip, trauma-related, nonpathological) as well, the researchers noted.

In their discussion, the researchers wrote that the clinical significance of the study is the inability of aspirin to reduce the risk of fractures in otherwise healthy older adults. They expressed surprise at the increase in serious falls, citing their hypothesis that the antiplatelet effects of aspirin may reduce cardiovascular and cerebrovascular events, thereby slowing physical decline and decreasing fall risk.

The increased risk of serious falls was not accompanied by an increase in fractures, and the increased fall risk was similar across subgroups of aspirin users, the researchers said.

Low-dose aspirin’s failure to reduce the risk of fractures but increasing the risk of serious falls adds to evidence that this agent provides little favorable benefit in a healthy, White older adult population.

The study findings were limited by several factors including the relatively homogeneous older and healthy population, and possible insufficient study duration to allow for changes in fracture and fall risk, the researchers noted. Other potential limitations include that the dose of aspirin used in the study was too low to affect bone remodeling and the lack of data on bone density, rheumatoid arthritis, and osteoporosis, they said.

However, the results were strengthened by the large sample size and high participant retention rate, and represent the first known examination of data from a randomized, controlled trial of the effect of aspirin on fractures, they added.
 

 

 

Setting the stage for more research

Overall, “This study adds to the growing body of evidence from other studies that the use of aspirin in people who do not have a risk of cardiovascular disease or stroke provides little benefit,” said Dr. Barker, who is also a professor at Monash University, Melbourne, Australia. However, “Older adults with a medical reason to take aspirin should continue to do so,” she emphasized.

“The most important thing the study showed is the primary endpoint, which was that aspirin use does not have an effect on fracture risk,” said Neil Skolnik, MD, of Sidney Kimmel Medical College, Philadelphia, in an interview.

“The increase in serious falls, as defined by a fall resulting in a visit to a hospital, is likely due to an increased risk of bleeding after a fall on aspirin,” said Dr. Skolnik, who was not involved in the study. Dr. Skolnik added that the current study findings support the current recommendations of the United States Preventive Services Task Force, which he quoted as follows, “The USPSTF recommends against initiating low-dose aspirin use for the primary prevention of CVD in adults 60 years or older.”

The study was supported by the National Institute on Aging and the National Cancer Institute at the National Institutes of Health; the National Health and Medical Research Council (Australia); Monash University; and the Victorian Cancer Agency. Lead author Dr. Barker was supported in part by the NHMRC and also disclosed grants from the NHMRC outside the current study. The ASPREE substudy also was supported by the University of Pittsburgh Claude D. Pepper Older American Independence Center and the Wake Forest University Claude D. Pepper Older Americans Independence Center. Bayer AG provided the aspirin used in the study but had no other role. Dr. Skolnik had no financial conflicts to disclose, but he serves on the editorial advisory board of Family Practice News.

 

Low-dose aspirin taken daily fails to reduce the risk of fractures and increases the risk of serious falls in older adults, a new study finds.

Previous research suggests that aspirin may reduce the risk of fragility fractures by delaying bone loss, but the direct effects of aspirin on bone microarchitecture and the association between aspirin use and fracture risk in humans has not been explored, corresponding author Anna L. Barker, PhD, and colleagues wrote in their paper published in JAMA Internal Medicine.

Dr. Barker, who is executive director of research and innovation for Silverchain (a senior care program), said, in an interview, that she and her coauthors hypothesized “that aspirin could reduce both falls and fractures by reducing cardiovascular-associated physical and cognitive impairments and the anti-inflammatory properties mediating bone remodeling.”
 

Study methods and results

In the ASPREE-FRACTURE substudy, the authors examined the impact of daily low-dose aspirin (100 mg) on incidence of any fracture in more than 16,000 community-dwelling adults aged 70 years and older. A secondary endpoint was the incidence of serious falls, defined as falls requiring a hospital visit. Individuals with chronic illness and cardiovascular or cerebrovascular disease were excluded, as were those with dementia or other cognitive impairment, or a physical disability.

The study population included 16,703 participants enrolled in the larger Aspirin in Reducing Events in the Elderly (ASPREE) clinical trial between 2010 and 2014. Of these, 8,322 were randomized to aspirin and 8,381 to a placebo. The median age was 74 years, and 55% of the participants were women.

Over a median follow-up of 4.6 years (76,219 total person-years), the risk of first fracture was similar between the aspirin and placebo groups (hazard ratio, 0.97), but the risk of serious falls was significantly higher in the aspirin group (884 falls vs. 804 falls, P = .01).

The incidence of first fracture was similar between the aspirin and placebo groups (813 vs. 718), as was the incidence of all fractures (1,394 and 1,471, respectively).

The results for both fractures and falls were essentially unchanged in a multivariate analysis controlling for variables known to affect fracture and fall risk and remained similar for different types of fractures (hip, trauma-related, nonpathological) as well, the researchers noted.

In their discussion, the researchers wrote that the clinical significance of the study is the inability of aspirin to reduce the risk of fractures in otherwise healthy older adults. They expressed surprise at the increase in serious falls, citing their hypothesis that the antiplatelet effects of aspirin may reduce cardiovascular and cerebrovascular events, thereby slowing physical decline and decreasing fall risk.

The increased risk of serious falls was not accompanied by an increase in fractures, and the increased fall risk was similar across subgroups of aspirin users, the researchers said.

Low-dose aspirin’s failure to reduce the risk of fractures but increasing the risk of serious falls adds to evidence that this agent provides little favorable benefit in a healthy, White older adult population.

The study findings were limited by several factors including the relatively homogeneous older and healthy population, and possible insufficient study duration to allow for changes in fracture and fall risk, the researchers noted. Other potential limitations include that the dose of aspirin used in the study was too low to affect bone remodeling and the lack of data on bone density, rheumatoid arthritis, and osteoporosis, they said.

However, the results were strengthened by the large sample size and high participant retention rate, and represent the first known examination of data from a randomized, controlled trial of the effect of aspirin on fractures, they added.
 

 

 

Setting the stage for more research

Overall, “This study adds to the growing body of evidence from other studies that the use of aspirin in people who do not have a risk of cardiovascular disease or stroke provides little benefit,” said Dr. Barker, who is also a professor at Monash University, Melbourne, Australia. However, “Older adults with a medical reason to take aspirin should continue to do so,” she emphasized.

“The most important thing the study showed is the primary endpoint, which was that aspirin use does not have an effect on fracture risk,” said Neil Skolnik, MD, of Sidney Kimmel Medical College, Philadelphia, in an interview.

“The increase in serious falls, as defined by a fall resulting in a visit to a hospital, is likely due to an increased risk of bleeding after a fall on aspirin,” said Dr. Skolnik, who was not involved in the study. Dr. Skolnik added that the current study findings support the current recommendations of the United States Preventive Services Task Force, which he quoted as follows, “The USPSTF recommends against initiating low-dose aspirin use for the primary prevention of CVD in adults 60 years or older.”

The study was supported by the National Institute on Aging and the National Cancer Institute at the National Institutes of Health; the National Health and Medical Research Council (Australia); Monash University; and the Victorian Cancer Agency. Lead author Dr. Barker was supported in part by the NHMRC and also disclosed grants from the NHMRC outside the current study. The ASPREE substudy also was supported by the University of Pittsburgh Claude D. Pepper Older American Independence Center and the Wake Forest University Claude D. Pepper Older Americans Independence Center. Bayer AG provided the aspirin used in the study but had no other role. Dr. Skolnik had no financial conflicts to disclose, but he serves on the editorial advisory board of Family Practice News.

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Novel drug eases Parkinson’s-related constipation in early trial

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An investigational drug that targets abnormal clumps of alpha-synuclein protein in the gut safely reduced constipation in patients with Parkinson’s disease (PD) in a new study.

The findings are based on 135 patients who completed 7-25 days of treatment with a daily oral dose of the drug, ENT-01, or a placebo. Complete spontaneous bowel movements (CSBMs), the primary efficacy endpoint, increased from a mean of 0.7 per week to 3.2 in individuals who took ENT-01 versus 1.2 in the placebo group.

The phase 2, multicenter, randomized trial showed that the drug “is safe and that it rapidly normalized bowel function in a dose-dependent fashion, with an effect that seems to persist for several weeks beyond the treatment period,” the researchers wrote in their paper on the research, which was published in Annals of Internal Medicine.

The researchers hypothesized that displacing aggregated alpha-synuclein from nerve cells in the gastrointestinal tract may also “slow progression of neurologic symptoms” in patients with PD by arresting the abnormal development of alpha-nucleic aggregates in the brain.

Denise Barbut, MD, cofounder, president and chief medical officer of Enterin, the company developing ENT-01, said the next step is another phase 2 trial to determine whether the drug reverses dementia or psychosis in patients with PD, before conducting a phase 3 study.

“We want to treat all nonmotor symptoms of Parkinson’s disease, not just constipation,” she said.
 

Constipation is an early PD symptom

Constipation is a common and persistent symptom of PD that often emerges years earlier than other symptoms such as motor deficits. Recent research has linked it to aggregates of alpha-synuclein that bind to cells in the enteric nervous system and may spread to the brain via the vagus nerve.

According to the researchers, ENT-01, a synthetic derivative of the antimicrobial compound squalamine, improves neural signaling in the gut by displacing alpha-synuclein aggregates.

In their double-blinded study, patients were randomized 3:1 to receive ENT-01 or a placebo and stratified by constipation severity to one of two starting doses: 75 mg or three placebo pills or 150 mg or six placebo pills. Doses increased until a patient reached a “prokinetic” dose, a maximum of 250 mg or 10 placebo pills, or the individual’s tolerability limit.

Dosing was fixed for the remainder of the 25 days, after which all patients took a placebo for 2 weeks followed by a 4-week washout.

In addition to more CSBMs, the treatment group had greater improvements in secondary endpoints of weekly spontaneous bowel movements (P = .002), better stool consistency (P < .001), improved ease of passage (P = .006), and less laxative use (P = .041).

There were no significant differences between the groups in scores on the Patient Assessment of Constipation Symptoms or the Patient Assessment of Constipation Quality of Life.

No deaths occurred, and there were no serious adverse events attributed to ENT-01. However, adverse events occurred in 61 (65.6%) of patients who took the drug versus 27 (47.4%) of those who took a placebo.

The most common problems were nausea, experienced by 32 (34%) in the ENT-01 group and 3 (5.3%) in the placebo group, and diarrhea, which occurred in 18 (9.4%) of those in the ENT-01 group and three (5.3%) who took the placebo.

Of 93 patients randomized to the drug (25.8%), 24 discontinued treatment before therapy ended, mostly because of nausea or diarrhea. That compared with 8 of 57 (14.1%) patients in the placebo group who stopped taking their pills before the end of the therapy period.

The researchers suggested that nausea and diarrhea might be alleviated by more gradual dosing escalation and the use of antinausea medication.

Dr. Barbut noted that a previous open-label trial of 50 patients with PD showed that ENT-01 acts locally in the gastrointestinal tract, which means it would not be absorbed into the bloodstream or interfere with other medications.
 

 

 

Targeting the underlying disease

Researchers noted that, in small subsets of patients with dementia or psychosis, greater improvements in those symptoms occurred among those who took ENT-01 versus those who took a placebo.

According to the study, among 11 patients with psychosis, average scores on the Scale for the Assessment of Positive Symptoms adapted for PD dropped from 6.5 to 1.8 on a 45-point scale at the end of treatment in the ENT-01 group (n = 5) and from 6.3 to 3.4 in the placebo group (n = 6).

In 28 patients with dementia, scores on the Mini-Mental State Examination improved by 2.4 points on a 30-point scale, from 24.1 to 26.5, during the treatment period for the ENT-01 group (n = 14) versus an improvement of 0.9 points, from 24.8 to 25.7, in the placebo group (n = 14).

The researchers said the findings must be evaluated in future trials dedicated to studying ENT-01’s effects on PD-related psychosis and dementia.

Dr. Satish Rao
Satish Rao, MD, PhD, a professor of medicine at the Medical College of Georgia, Augusta, who was not involved in the study, cautioned that long-term efficacy and tolerability have yet to be shown but lauded the study’s rigor including a “very robust endpoint” in CSBMs.

He added that, if findings are reproduced in a large study, the drug could have “a major impact” not just in treating constipation, for which there are no PD-specific drugs, but also in addressing neurological dysfunctions that are cardinal features of PD. “That is what is exciting to me, because we’re now talking about reversing the disease itself,” he said.

However, Dr. Barbut said it’s been difficult to get across to the medical community and to investors that a drug that acts on nerve cells in the gut might reverse neurologic symptoms by improving direct gut-brain communication. “That’s a concept that is alien to most people’s thinking,” she said.

Enterin funded the study and was responsible for the design, data collection and analysis. Its employees also participated in the interpretation of data, writing of the report, and the decision to submit the manuscript for publication. Dr. Barbut reported stock options in Enterin and patent interests in ENT-01. Fifteen other study investigators reported financial ties to Enterin and/or ENT-01 including employment, stock options, research funding, consulting fees and patent application ownership. Dr. Rao reported receiving honoraria from multiple companies that market drugs for general constipation.
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An investigational drug that targets abnormal clumps of alpha-synuclein protein in the gut safely reduced constipation in patients with Parkinson’s disease (PD) in a new study.

The findings are based on 135 patients who completed 7-25 days of treatment with a daily oral dose of the drug, ENT-01, or a placebo. Complete spontaneous bowel movements (CSBMs), the primary efficacy endpoint, increased from a mean of 0.7 per week to 3.2 in individuals who took ENT-01 versus 1.2 in the placebo group.

The phase 2, multicenter, randomized trial showed that the drug “is safe and that it rapidly normalized bowel function in a dose-dependent fashion, with an effect that seems to persist for several weeks beyond the treatment period,” the researchers wrote in their paper on the research, which was published in Annals of Internal Medicine.

The researchers hypothesized that displacing aggregated alpha-synuclein from nerve cells in the gastrointestinal tract may also “slow progression of neurologic symptoms” in patients with PD by arresting the abnormal development of alpha-nucleic aggregates in the brain.

Denise Barbut, MD, cofounder, president and chief medical officer of Enterin, the company developing ENT-01, said the next step is another phase 2 trial to determine whether the drug reverses dementia or psychosis in patients with PD, before conducting a phase 3 study.

“We want to treat all nonmotor symptoms of Parkinson’s disease, not just constipation,” she said.
 

Constipation is an early PD symptom

Constipation is a common and persistent symptom of PD that often emerges years earlier than other symptoms such as motor deficits. Recent research has linked it to aggregates of alpha-synuclein that bind to cells in the enteric nervous system and may spread to the brain via the vagus nerve.

According to the researchers, ENT-01, a synthetic derivative of the antimicrobial compound squalamine, improves neural signaling in the gut by displacing alpha-synuclein aggregates.

In their double-blinded study, patients were randomized 3:1 to receive ENT-01 or a placebo and stratified by constipation severity to one of two starting doses: 75 mg or three placebo pills or 150 mg or six placebo pills. Doses increased until a patient reached a “prokinetic” dose, a maximum of 250 mg or 10 placebo pills, or the individual’s tolerability limit.

Dosing was fixed for the remainder of the 25 days, after which all patients took a placebo for 2 weeks followed by a 4-week washout.

In addition to more CSBMs, the treatment group had greater improvements in secondary endpoints of weekly spontaneous bowel movements (P = .002), better stool consistency (P < .001), improved ease of passage (P = .006), and less laxative use (P = .041).

There were no significant differences between the groups in scores on the Patient Assessment of Constipation Symptoms or the Patient Assessment of Constipation Quality of Life.

No deaths occurred, and there were no serious adverse events attributed to ENT-01. However, adverse events occurred in 61 (65.6%) of patients who took the drug versus 27 (47.4%) of those who took a placebo.

The most common problems were nausea, experienced by 32 (34%) in the ENT-01 group and 3 (5.3%) in the placebo group, and diarrhea, which occurred in 18 (9.4%) of those in the ENT-01 group and three (5.3%) who took the placebo.

Of 93 patients randomized to the drug (25.8%), 24 discontinued treatment before therapy ended, mostly because of nausea or diarrhea. That compared with 8 of 57 (14.1%) patients in the placebo group who stopped taking their pills before the end of the therapy period.

The researchers suggested that nausea and diarrhea might be alleviated by more gradual dosing escalation and the use of antinausea medication.

Dr. Barbut noted that a previous open-label trial of 50 patients with PD showed that ENT-01 acts locally in the gastrointestinal tract, which means it would not be absorbed into the bloodstream or interfere with other medications.
 

 

 

Targeting the underlying disease

Researchers noted that, in small subsets of patients with dementia or psychosis, greater improvements in those symptoms occurred among those who took ENT-01 versus those who took a placebo.

According to the study, among 11 patients with psychosis, average scores on the Scale for the Assessment of Positive Symptoms adapted for PD dropped from 6.5 to 1.8 on a 45-point scale at the end of treatment in the ENT-01 group (n = 5) and from 6.3 to 3.4 in the placebo group (n = 6).

In 28 patients with dementia, scores on the Mini-Mental State Examination improved by 2.4 points on a 30-point scale, from 24.1 to 26.5, during the treatment period for the ENT-01 group (n = 14) versus an improvement of 0.9 points, from 24.8 to 25.7, in the placebo group (n = 14).

The researchers said the findings must be evaluated in future trials dedicated to studying ENT-01’s effects on PD-related psychosis and dementia.

Dr. Satish Rao
Satish Rao, MD, PhD, a professor of medicine at the Medical College of Georgia, Augusta, who was not involved in the study, cautioned that long-term efficacy and tolerability have yet to be shown but lauded the study’s rigor including a “very robust endpoint” in CSBMs.

He added that, if findings are reproduced in a large study, the drug could have “a major impact” not just in treating constipation, for which there are no PD-specific drugs, but also in addressing neurological dysfunctions that are cardinal features of PD. “That is what is exciting to me, because we’re now talking about reversing the disease itself,” he said.

However, Dr. Barbut said it’s been difficult to get across to the medical community and to investors that a drug that acts on nerve cells in the gut might reverse neurologic symptoms by improving direct gut-brain communication. “That’s a concept that is alien to most people’s thinking,” she said.

Enterin funded the study and was responsible for the design, data collection and analysis. Its employees also participated in the interpretation of data, writing of the report, and the decision to submit the manuscript for publication. Dr. Barbut reported stock options in Enterin and patent interests in ENT-01. Fifteen other study investigators reported financial ties to Enterin and/or ENT-01 including employment, stock options, research funding, consulting fees and patent application ownership. Dr. Rao reported receiving honoraria from multiple companies that market drugs for general constipation.

An investigational drug that targets abnormal clumps of alpha-synuclein protein in the gut safely reduced constipation in patients with Parkinson’s disease (PD) in a new study.

The findings are based on 135 patients who completed 7-25 days of treatment with a daily oral dose of the drug, ENT-01, or a placebo. Complete spontaneous bowel movements (CSBMs), the primary efficacy endpoint, increased from a mean of 0.7 per week to 3.2 in individuals who took ENT-01 versus 1.2 in the placebo group.

The phase 2, multicenter, randomized trial showed that the drug “is safe and that it rapidly normalized bowel function in a dose-dependent fashion, with an effect that seems to persist for several weeks beyond the treatment period,” the researchers wrote in their paper on the research, which was published in Annals of Internal Medicine.

The researchers hypothesized that displacing aggregated alpha-synuclein from nerve cells in the gastrointestinal tract may also “slow progression of neurologic symptoms” in patients with PD by arresting the abnormal development of alpha-nucleic aggregates in the brain.

Denise Barbut, MD, cofounder, president and chief medical officer of Enterin, the company developing ENT-01, said the next step is another phase 2 trial to determine whether the drug reverses dementia or psychosis in patients with PD, before conducting a phase 3 study.

“We want to treat all nonmotor symptoms of Parkinson’s disease, not just constipation,” she said.
 

Constipation is an early PD symptom

Constipation is a common and persistent symptom of PD that often emerges years earlier than other symptoms such as motor deficits. Recent research has linked it to aggregates of alpha-synuclein that bind to cells in the enteric nervous system and may spread to the brain via the vagus nerve.

According to the researchers, ENT-01, a synthetic derivative of the antimicrobial compound squalamine, improves neural signaling in the gut by displacing alpha-synuclein aggregates.

In their double-blinded study, patients were randomized 3:1 to receive ENT-01 or a placebo and stratified by constipation severity to one of two starting doses: 75 mg or three placebo pills or 150 mg or six placebo pills. Doses increased until a patient reached a “prokinetic” dose, a maximum of 250 mg or 10 placebo pills, or the individual’s tolerability limit.

Dosing was fixed for the remainder of the 25 days, after which all patients took a placebo for 2 weeks followed by a 4-week washout.

In addition to more CSBMs, the treatment group had greater improvements in secondary endpoints of weekly spontaneous bowel movements (P = .002), better stool consistency (P < .001), improved ease of passage (P = .006), and less laxative use (P = .041).

There were no significant differences between the groups in scores on the Patient Assessment of Constipation Symptoms or the Patient Assessment of Constipation Quality of Life.

No deaths occurred, and there were no serious adverse events attributed to ENT-01. However, adverse events occurred in 61 (65.6%) of patients who took the drug versus 27 (47.4%) of those who took a placebo.

The most common problems were nausea, experienced by 32 (34%) in the ENT-01 group and 3 (5.3%) in the placebo group, and diarrhea, which occurred in 18 (9.4%) of those in the ENT-01 group and three (5.3%) who took the placebo.

Of 93 patients randomized to the drug (25.8%), 24 discontinued treatment before therapy ended, mostly because of nausea or diarrhea. That compared with 8 of 57 (14.1%) patients in the placebo group who stopped taking their pills before the end of the therapy period.

The researchers suggested that nausea and diarrhea might be alleviated by more gradual dosing escalation and the use of antinausea medication.

Dr. Barbut noted that a previous open-label trial of 50 patients with PD showed that ENT-01 acts locally in the gastrointestinal tract, which means it would not be absorbed into the bloodstream or interfere with other medications.
 

 

 

Targeting the underlying disease

Researchers noted that, in small subsets of patients with dementia or psychosis, greater improvements in those symptoms occurred among those who took ENT-01 versus those who took a placebo.

According to the study, among 11 patients with psychosis, average scores on the Scale for the Assessment of Positive Symptoms adapted for PD dropped from 6.5 to 1.8 on a 45-point scale at the end of treatment in the ENT-01 group (n = 5) and from 6.3 to 3.4 in the placebo group (n = 6).

In 28 patients with dementia, scores on the Mini-Mental State Examination improved by 2.4 points on a 30-point scale, from 24.1 to 26.5, during the treatment period for the ENT-01 group (n = 14) versus an improvement of 0.9 points, from 24.8 to 25.7, in the placebo group (n = 14).

The researchers said the findings must be evaluated in future trials dedicated to studying ENT-01’s effects on PD-related psychosis and dementia.

Dr. Satish Rao
Satish Rao, MD, PhD, a professor of medicine at the Medical College of Georgia, Augusta, who was not involved in the study, cautioned that long-term efficacy and tolerability have yet to be shown but lauded the study’s rigor including a “very robust endpoint” in CSBMs.

He added that, if findings are reproduced in a large study, the drug could have “a major impact” not just in treating constipation, for which there are no PD-specific drugs, but also in addressing neurological dysfunctions that are cardinal features of PD. “That is what is exciting to me, because we’re now talking about reversing the disease itself,” he said.

However, Dr. Barbut said it’s been difficult to get across to the medical community and to investors that a drug that acts on nerve cells in the gut might reverse neurologic symptoms by improving direct gut-brain communication. “That’s a concept that is alien to most people’s thinking,” she said.

Enterin funded the study and was responsible for the design, data collection and analysis. Its employees also participated in the interpretation of data, writing of the report, and the decision to submit the manuscript for publication. Dr. Barbut reported stock options in Enterin and patent interests in ENT-01. Fifteen other study investigators reported financial ties to Enterin and/or ENT-01 including employment, stock options, research funding, consulting fees and patent application ownership. Dr. Rao reported receiving honoraria from multiple companies that market drugs for general constipation.
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Sexual activities in seniors: Experts advise on what to ask

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Sexual activity in older adults is something of a taboo, rarely discussed and largely ignored by researchers.

But failing to address human sexuality in old age can lead doctors to ask seniors the wrong questions about sex – if they ask at all.

When researchers do look at the issue, they find surprises, as Janie Steckenrider, PhD, has learned. In a new study presented at the annual scientific meeting of the Gerontological Society of America, Dr. Steckenrider, a professor of political science at Loyola Marymount University, Los Angeles, found that previous attempts to qualify the sexual activities of seniors appear to be limited largely to partnered sex – despite the fact that many older people tend to practice “solo sex,” another term for masturbation.

“Maybe they don’t have a partner, or their partner has sexual dysfunction, or has died. There could be pain involved,” Dr. Steckenrider said. “In the hierarchy of sexual activity, penetrative sex is the cultural norm. As people get older, penetrative sex becomes less important. The hierarchy shifts to include more emotional intimacy like touching and fondling.”

Of the 17 survey questionnaires Dr. Steckenrider analyzed, 11 had questions that focused exclusively on sex with a partner. Nine defined sexual activity and just five included questions about masturbation.

Take, for example, a 2018 poll by researchers at the University of Michigan, Ann Arbor, who found that 40% of people ages 65-80 said they were sexually active. Meanwhile, nearly two thirds of older adults said they were interested in sex, and more than half said sex was important to their quality of life.

But Dr. Steckenrider said this poll, like others, left the term “sexually active” undefined – raising questions about the meaning of the findings.

Sheryl A. Kingsberg, PhD, chief of behavioral medicine in the department of obstetrics and gynecology at University Hospitals Cleveland Medical Center, said she was surprised so few of the studies analyzed by Dr. Steckenrider included masturbation in their definition of sex. 

“Clinical trials of potential treatments for female sexual problems, like hypoactive sexual desire disorder or painful sex, include both definitions of sexual activity and questions about masturbation, she said. “Definitions also should not assume partnered sex is male or female,” she added. 

Dr. Steckenrider and Dr. Kingsberg encouraged healthcare providers to address the sexual health of their patients by asking questions about their sexual health and concerns. 

“Health care professionals cannot address sexual concerns if they don’t acknowledge their patients as sexual beings and inquire about sexual problems,” Dr. Kingsberg said.

The key, according to Dr. Steckenrider, is for clinicians to ask the right questions. But which ones?  

Detail is crucial. 

“I think that’s far better than asking whether they are sexually active, yes or no,” she said. “Ask: ‘How often have you engaged in these types of sexual activities?’ If you are looking for frequency, and be specific about the types of sex: kissing, fondling, or masturbation.”

A version of this article first appeared on Medscape.com.

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Sexual activity in older adults is something of a taboo, rarely discussed and largely ignored by researchers.

But failing to address human sexuality in old age can lead doctors to ask seniors the wrong questions about sex – if they ask at all.

When researchers do look at the issue, they find surprises, as Janie Steckenrider, PhD, has learned. In a new study presented at the annual scientific meeting of the Gerontological Society of America, Dr. Steckenrider, a professor of political science at Loyola Marymount University, Los Angeles, found that previous attempts to qualify the sexual activities of seniors appear to be limited largely to partnered sex – despite the fact that many older people tend to practice “solo sex,” another term for masturbation.

“Maybe they don’t have a partner, or their partner has sexual dysfunction, or has died. There could be pain involved,” Dr. Steckenrider said. “In the hierarchy of sexual activity, penetrative sex is the cultural norm. As people get older, penetrative sex becomes less important. The hierarchy shifts to include more emotional intimacy like touching and fondling.”

Of the 17 survey questionnaires Dr. Steckenrider analyzed, 11 had questions that focused exclusively on sex with a partner. Nine defined sexual activity and just five included questions about masturbation.

Take, for example, a 2018 poll by researchers at the University of Michigan, Ann Arbor, who found that 40% of people ages 65-80 said they were sexually active. Meanwhile, nearly two thirds of older adults said they were interested in sex, and more than half said sex was important to their quality of life.

But Dr. Steckenrider said this poll, like others, left the term “sexually active” undefined – raising questions about the meaning of the findings.

Sheryl A. Kingsberg, PhD, chief of behavioral medicine in the department of obstetrics and gynecology at University Hospitals Cleveland Medical Center, said she was surprised so few of the studies analyzed by Dr. Steckenrider included masturbation in their definition of sex. 

“Clinical trials of potential treatments for female sexual problems, like hypoactive sexual desire disorder or painful sex, include both definitions of sexual activity and questions about masturbation, she said. “Definitions also should not assume partnered sex is male or female,” she added. 

Dr. Steckenrider and Dr. Kingsberg encouraged healthcare providers to address the sexual health of their patients by asking questions about their sexual health and concerns. 

“Health care professionals cannot address sexual concerns if they don’t acknowledge their patients as sexual beings and inquire about sexual problems,” Dr. Kingsberg said.

The key, according to Dr. Steckenrider, is for clinicians to ask the right questions. But which ones?  

Detail is crucial. 

“I think that’s far better than asking whether they are sexually active, yes or no,” she said. “Ask: ‘How often have you engaged in these types of sexual activities?’ If you are looking for frequency, and be specific about the types of sex: kissing, fondling, or masturbation.”

A version of this article first appeared on Medscape.com.

Sexual activity in older adults is something of a taboo, rarely discussed and largely ignored by researchers.

But failing to address human sexuality in old age can lead doctors to ask seniors the wrong questions about sex – if they ask at all.

When researchers do look at the issue, they find surprises, as Janie Steckenrider, PhD, has learned. In a new study presented at the annual scientific meeting of the Gerontological Society of America, Dr. Steckenrider, a professor of political science at Loyola Marymount University, Los Angeles, found that previous attempts to qualify the sexual activities of seniors appear to be limited largely to partnered sex – despite the fact that many older people tend to practice “solo sex,” another term for masturbation.

“Maybe they don’t have a partner, or their partner has sexual dysfunction, or has died. There could be pain involved,” Dr. Steckenrider said. “In the hierarchy of sexual activity, penetrative sex is the cultural norm. As people get older, penetrative sex becomes less important. The hierarchy shifts to include more emotional intimacy like touching and fondling.”

Of the 17 survey questionnaires Dr. Steckenrider analyzed, 11 had questions that focused exclusively on sex with a partner. Nine defined sexual activity and just five included questions about masturbation.

Take, for example, a 2018 poll by researchers at the University of Michigan, Ann Arbor, who found that 40% of people ages 65-80 said they were sexually active. Meanwhile, nearly two thirds of older adults said they were interested in sex, and more than half said sex was important to their quality of life.

But Dr. Steckenrider said this poll, like others, left the term “sexually active” undefined – raising questions about the meaning of the findings.

Sheryl A. Kingsberg, PhD, chief of behavioral medicine in the department of obstetrics and gynecology at University Hospitals Cleveland Medical Center, said she was surprised so few of the studies analyzed by Dr. Steckenrider included masturbation in their definition of sex. 

“Clinical trials of potential treatments for female sexual problems, like hypoactive sexual desire disorder or painful sex, include both definitions of sexual activity and questions about masturbation, she said. “Definitions also should not assume partnered sex is male or female,” she added. 

Dr. Steckenrider and Dr. Kingsberg encouraged healthcare providers to address the sexual health of their patients by asking questions about their sexual health and concerns. 

“Health care professionals cannot address sexual concerns if they don’t acknowledge their patients as sexual beings and inquire about sexual problems,” Dr. Kingsberg said.

The key, according to Dr. Steckenrider, is for clinicians to ask the right questions. But which ones?  

Detail is crucial. 

“I think that’s far better than asking whether they are sexually active, yes or no,” she said. “Ask: ‘How often have you engaged in these types of sexual activities?’ If you are looking for frequency, and be specific about the types of sex: kissing, fondling, or masturbation.”

A version of this article first appeared on Medscape.com.

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How can I keep from losing my mind?

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A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.1 A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Dr. Douglas S. Paauw

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.2

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.3 They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.4 The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.5 They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.6 They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.7 The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

 

 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

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A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.1 A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Dr. Douglas S. Paauw

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.2

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.3 They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.4 The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.5 They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.6 They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.7 The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

 

 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

A 67-year-old man asks about what he can do to prevent dementia. He reports his mother had dementia, and he wants to do everything he can to prevent it. Which of the following has evidence of benefit?

A) Thiamine

B) Vitamin E

C) Multivitamin (MV)

D) Keto diet

E) Red wine
 

FDA-approved therapies for dementia

To date the actual therapies for dementia have been disappointing. Donepezil, the most prescribed medication for the treatment of dementia has a number-needed-to treat (NNT) over 17, and causes frequent side effects. Aducanumab was recently approved by the Food and Drug Administration for the treatment of Alzheimer’s disease (AD), but controversy has arisen, as the clinical results were modest, and the price tag will be large – estimated at $30,000-$50,000/year.

Preventive options that may decrease the likelihood of dementia

Patients often ask the question stated above. Regarding how to respond to that question, choice C, MV, has some recent evidence of benefit. Baker and colleagues studied the effect of cocoa extract and multivitamins on cognitive function in the COSMOS-Mind trial.1 A total of 2,262 people were enrolled, and over 90% completed baseline and at least one annual cognitive assessment. Cocoa extract had no impact on global cognition (confidence interval [CI], –.02-.08, P = .28), but MV supplementation did have a statistically significant impact on global cognition (CI, .02-.12, P less than .007).

Dr. Douglas S. Paauw

Vitamin E has been enthusiastically endorsed in the past as a treatment to prevent cognitive decline. The most recent Cochrane review on vitamin E concluded there was no evidence that the alpha-tocopherol form of vitamin E given to people with MCI prevents progression to dementia, or that it improves cognitive function in people with MCI or dementia due to AD.2

Exercise has long been a mainstay of our advice to patients as something they can do to help prevent dementia. Yu and colleagues did a meta-analysis of almost 400 randomized controlled trials and observational studies to grade the evidence on different interventions.3 They gave exercise a grade B for evidence of benefit.

A recent study addressed this issue, and I think it is helpful on quantifying how much exercise is needed. Del Pozo Cruz and colleagues did a prospective population-based cohort study of 78,000 adults aged 40-79, with an average of 6.9 years of follow up.4 The optimal step count was 9,826 steps (hazard ratio [HR], 0.49; 95% CI, 0.39-0.62) and the minimal step count for benefit was 3,826 steps (HR, 0.75; 95% CI, 0.67-0.83).
 

Modifiable factors

The other major modifiable factors to consider are problems with special senses. Both vision loss and hearing loss have been associated with cognitive impairment.

Shang and colleagues published a meta-analysis of 14 cohort studies addressing vision impairment and cognitive function involving more than 6 million individuals.5 They concluded that vision impairment is associated with an increased risk of both dementia and cognitive impairment in older adults.

Loughrey and colleagues performed a meta-analysis of 36 studies addressing hearing loss and cognitive decline.6 They reported that, among cross-sectional studies, a significant association was found for cognitive impairment (odds ratio [OR], 2.00; 95% CI, 1.39-2.89) and dementia (OR, 2.42; 95% CI, 1.24-4.72). A similar finding was present in prospective cohort studies with a significant association being found for cognitive impairment (OR, 1.22; 95% CI, 1.09-1.36) and dementia (OR, 1.28; 95% CI, 1.02-1.59).

A 25-year prospective, population-based study of patients with hearing loss revealed a difference in the rate of change in MMSE score over the 25-year follow-up between participants with hearing loss not using hearing aids matched with controls who didn’t have hearing loss. Those with untreated hearing loss had more cognitive decline than that of patients without hearing loss.7 The subjects with hearing loss using a hearing aid had no difference in cognitive decline from controls.
 

 

 

Pearl

Several simple and safe interventions may protect our patients from cognitive decline. These include taking a daily multivitamin, walking more than 4,000 steps a day, and optimizing vision and hearing.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at dpaauw@uw.edu.

References

1. Baker LD et al. Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial. Alzheimer’s Dement. 2022 Sep 14. doi: 10.1002/alz.12767.

2. Farina N et al. Vitamin E for Alzheimer’s dementia and mild cognitive impairment. Cochrane Database Syst Rev. 2017 Apr 18;4(4):CD002854. doi: 10.1002/14651858.CD002854.pub5.

3. Yu JT et al. Evidence-based prevention of Alzheimer’s disease: Systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. J Neurol Neurosurg Psychiatry. 2020 Nov;91(11):1201-9.

4. Del Pozo Cruz B et al. Association of daily step count and intensity with incident dementia in 78,430 adults living in the UK. JAMA Neurol. 2022 Oct 1;79(10):1059-63.

5. Shang X et al. The association between vision impairment and incidence of dementia and cognitive impairment: A systematic review and meta-analysis. Ophthalmology. 2021 Aug;128(8):1135-49.

6. Loughrey DG et al. Association of age-related hearing loss with cognitive function, cognitive impairment, and dementia: A systematic review and meta-analysis. JAMA Otolaryngol Head Neck Surg. 2018 Feb 1;144(2):115-26.

7. Amieva H et al. Self-reported hearing loss, hearing aids, and cognitive decline in elderly adults: A 25-year study. J Am Geriatr Soc. 2015 Oct;63(10):2099-104.

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Vedolizumab linked to increased treatment failure in older patients with Crohn’s

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Findings indicate that vedolizumab is associated with an increased risk for treatment failure in older patients with inflammatory bowel disease (IBD), as compared with tumor necrosis factor (TNF) antagonists, according to a new study published in JAMA Network Open.

Dr. Siddharth Singh

Although the incidence and prevalence of IBD among older adults are rapidly increasing, there is a lack of evidence-based treatment guidance for these patients, who represent less than 5% of participants in IBD-related clinical trials, wrote Siddharth Singh, MD, a gastroenterologist and assistant professor of medicine at the University of California, San Diego, and colleagues.

“Older patients are frequently undertreated and mismanaged with long-term corticosteroid use and limited use of steroid-sparing therapies owing to patients’ and clinicians’ concerns about the safety of immunosuppressive therapy,” the authors wrote. “There is considerable need for evidence-based treatment guidance for older patients with IBD.”

FatCamera/Getty Images

The researchers undertook an observational study of the comparative effectiveness of vedolizumab versus TNF antagonists (namely infliximab, adalimumab, and golimumab) among older patients with IBD in Denmark. Using the Danish National Patient Register, the authors included 754 patients aged 50 years and older who received treatment between 2005 and 2018.

The primary effectiveness outcome was treatment failure, defined as the composite 1-year risk of IBD-related hospitalization, IBD-related surgery, or a new corticosteroid prescription more than 6 weeks after initiation of treatment with a biologic. Secondary effectiveness outcomes included time to each component included in the composite score.

The primary safety outcome was the risk of serious infections, defined as those that required hospitalization. Secondary safety outcomes were risk of cancer and major adverse cardiovascular or venous thromboembolic events.

The researchers conducted a 1:1 propensity score-matched analysis, accounting for patient, disease, and treatment factors. The 754 patients included 377 incident users of vedolizumab, including 177 with Crohn’s disease; and 377 incident users of TNF antagonists, including 182 with Crohn’s disease. The average follow-up after treatment initiation occurred between 32 and 40 weeks.

Notably, patients treated with vedolizumab were more likely than those treated with TNF antagonists to have multimorbidity, at 16.2% versus 14.1%, and a higher burden of frailty, at 2.7% versus 1.9%. No significant differences were observed in the proportion of patients with recent immunomodulator and corticosteroid exposure.

Overall, vedolizumab was associated with a 31% increased risk of treatment failure (45.4%), compared with TNF antagonists (34.7%). This included an increased risk of IBD-related hospitalization (27.8% versus 16.3%) and IBD-related major abdominal surgery (21.3% versus 8%).

Among patients with Crohn’s disease, vedolizumab was associated with a 77% increased risk of treatment failure, as well as a greater need for corticosteroids. There was no significant difference in the risk of treatment failure or need for corticosteroids in patients with ulcerative colitis

No significant differences were seen in the risk of serious infections between patients treated with vedolizumab or TNF antagonists, at 8.2% versus 8.7%. This didn’t change by IBD phenotype, age at time of biologic therapy initiation, or treatment with biologic monotherapy versus combination therapy with immunomodulators.

The overall incidence of major adverse cardiovascular or venous thromboembolic events was similar among the groups. Rates of new malignant neoplasms were low, with fewer than five events.

In a subgroup analysis based on the Charlson Comorbidity Index, vedolizumab was associated with a 63% increased risk of treatment failure for patients without comorbidities but not for patients with comorbidities.

“This study adds to the body of literature comparing vedolizumab and anti-TNF in older adults. The findings have been mixed, in some part due to differences in study designs,” said Ashwin N. Ananthakrishnan, MBBS, MPH, associate professor of medicine at Harvard Medical School and a gastroenterologist at Massachusetts General Hospital, both in Boston.

Dr. Ashwin N. Ananthakrishnan

Dr. Ananthakrishnan, who wasn’t involved with this study, has previously researched the two treatments and found that they are comparably safe in older adults. In fact, among patients with significant comorbidity, vedolizumab may be safer. However, the Danish study wasn’t powered to describe that, he said. Moreover, patient characteristics and treatment approaches likely differ between the United States and Denmark.

“Overall, the findings are reassuring. Often when we treat older adults, the emphasis is on safety,” he said. “But by highlighting the difference in clinical response rates – their findings being consistent with a study we published a few years ago – it highlights the importance of also considering efficacy and onset of action for specific disease phenotypes in treatment selection.”

Dr. Ananthakrishnan and colleagues are currently developing clinical tools for risk stratification and prognostication in older adults with IBD, including functional and frailty assessments. “Biologically, older adults may be particularly vulnerable to specific treatment risks such as infections and cancer, but they are also vulnerable to the consequences of untreated disease, including loss of functional independence and frailty,” he explained. “Thus, arriving at the right risk to benefit balance is critically important when making treatment decisions for older adults.”

The study by Dr. Singh and colleagues was supported by grants from the National Institute of Diabetes and Digestive and Kidney Diseases and the Danish National Research Foundation. Dr. Singh reported receiving grants from pharmaceutical companies unrelated to the study, as well as support from the International Organization for the Study of Inflammatory Bowel Disease Operating Grant and Litwin Pioneers in IBD. No other disclosures were reported. Dr. Ananthakrishnan reported no relevant disclosures.

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Findings indicate that vedolizumab is associated with an increased risk for treatment failure in older patients with inflammatory bowel disease (IBD), as compared with tumor necrosis factor (TNF) antagonists, according to a new study published in JAMA Network Open.

Dr. Siddharth Singh

Although the incidence and prevalence of IBD among older adults are rapidly increasing, there is a lack of evidence-based treatment guidance for these patients, who represent less than 5% of participants in IBD-related clinical trials, wrote Siddharth Singh, MD, a gastroenterologist and assistant professor of medicine at the University of California, San Diego, and colleagues.

“Older patients are frequently undertreated and mismanaged with long-term corticosteroid use and limited use of steroid-sparing therapies owing to patients’ and clinicians’ concerns about the safety of immunosuppressive therapy,” the authors wrote. “There is considerable need for evidence-based treatment guidance for older patients with IBD.”

FatCamera/Getty Images

The researchers undertook an observational study of the comparative effectiveness of vedolizumab versus TNF antagonists (namely infliximab, adalimumab, and golimumab) among older patients with IBD in Denmark. Using the Danish National Patient Register, the authors included 754 patients aged 50 years and older who received treatment between 2005 and 2018.

The primary effectiveness outcome was treatment failure, defined as the composite 1-year risk of IBD-related hospitalization, IBD-related surgery, or a new corticosteroid prescription more than 6 weeks after initiation of treatment with a biologic. Secondary effectiveness outcomes included time to each component included in the composite score.

The primary safety outcome was the risk of serious infections, defined as those that required hospitalization. Secondary safety outcomes were risk of cancer and major adverse cardiovascular or venous thromboembolic events.

The researchers conducted a 1:1 propensity score-matched analysis, accounting for patient, disease, and treatment factors. The 754 patients included 377 incident users of vedolizumab, including 177 with Crohn’s disease; and 377 incident users of TNF antagonists, including 182 with Crohn’s disease. The average follow-up after treatment initiation occurred between 32 and 40 weeks.

Notably, patients treated with vedolizumab were more likely than those treated with TNF antagonists to have multimorbidity, at 16.2% versus 14.1%, and a higher burden of frailty, at 2.7% versus 1.9%. No significant differences were observed in the proportion of patients with recent immunomodulator and corticosteroid exposure.

Overall, vedolizumab was associated with a 31% increased risk of treatment failure (45.4%), compared with TNF antagonists (34.7%). This included an increased risk of IBD-related hospitalization (27.8% versus 16.3%) and IBD-related major abdominal surgery (21.3% versus 8%).

Among patients with Crohn’s disease, vedolizumab was associated with a 77% increased risk of treatment failure, as well as a greater need for corticosteroids. There was no significant difference in the risk of treatment failure or need for corticosteroids in patients with ulcerative colitis

No significant differences were seen in the risk of serious infections between patients treated with vedolizumab or TNF antagonists, at 8.2% versus 8.7%. This didn’t change by IBD phenotype, age at time of biologic therapy initiation, or treatment with biologic monotherapy versus combination therapy with immunomodulators.

The overall incidence of major adverse cardiovascular or venous thromboembolic events was similar among the groups. Rates of new malignant neoplasms were low, with fewer than five events.

In a subgroup analysis based on the Charlson Comorbidity Index, vedolizumab was associated with a 63% increased risk of treatment failure for patients without comorbidities but not for patients with comorbidities.

“This study adds to the body of literature comparing vedolizumab and anti-TNF in older adults. The findings have been mixed, in some part due to differences in study designs,” said Ashwin N. Ananthakrishnan, MBBS, MPH, associate professor of medicine at Harvard Medical School and a gastroenterologist at Massachusetts General Hospital, both in Boston.

Dr. Ashwin N. Ananthakrishnan

Dr. Ananthakrishnan, who wasn’t involved with this study, has previously researched the two treatments and found that they are comparably safe in older adults. In fact, among patients with significant comorbidity, vedolizumab may be safer. However, the Danish study wasn’t powered to describe that, he said. Moreover, patient characteristics and treatment approaches likely differ between the United States and Denmark.

“Overall, the findings are reassuring. Often when we treat older adults, the emphasis is on safety,” he said. “But by highlighting the difference in clinical response rates – their findings being consistent with a study we published a few years ago – it highlights the importance of also considering efficacy and onset of action for specific disease phenotypes in treatment selection.”

Dr. Ananthakrishnan and colleagues are currently developing clinical tools for risk stratification and prognostication in older adults with IBD, including functional and frailty assessments. “Biologically, older adults may be particularly vulnerable to specific treatment risks such as infections and cancer, but they are also vulnerable to the consequences of untreated disease, including loss of functional independence and frailty,” he explained. “Thus, arriving at the right risk to benefit balance is critically important when making treatment decisions for older adults.”

The study by Dr. Singh and colleagues was supported by grants from the National Institute of Diabetes and Digestive and Kidney Diseases and the Danish National Research Foundation. Dr. Singh reported receiving grants from pharmaceutical companies unrelated to the study, as well as support from the International Organization for the Study of Inflammatory Bowel Disease Operating Grant and Litwin Pioneers in IBD. No other disclosures were reported. Dr. Ananthakrishnan reported no relevant disclosures.

 

Findings indicate that vedolizumab is associated with an increased risk for treatment failure in older patients with inflammatory bowel disease (IBD), as compared with tumor necrosis factor (TNF) antagonists, according to a new study published in JAMA Network Open.

Dr. Siddharth Singh

Although the incidence and prevalence of IBD among older adults are rapidly increasing, there is a lack of evidence-based treatment guidance for these patients, who represent less than 5% of participants in IBD-related clinical trials, wrote Siddharth Singh, MD, a gastroenterologist and assistant professor of medicine at the University of California, San Diego, and colleagues.

“Older patients are frequently undertreated and mismanaged with long-term corticosteroid use and limited use of steroid-sparing therapies owing to patients’ and clinicians’ concerns about the safety of immunosuppressive therapy,” the authors wrote. “There is considerable need for evidence-based treatment guidance for older patients with IBD.”

FatCamera/Getty Images

The researchers undertook an observational study of the comparative effectiveness of vedolizumab versus TNF antagonists (namely infliximab, adalimumab, and golimumab) among older patients with IBD in Denmark. Using the Danish National Patient Register, the authors included 754 patients aged 50 years and older who received treatment between 2005 and 2018.

The primary effectiveness outcome was treatment failure, defined as the composite 1-year risk of IBD-related hospitalization, IBD-related surgery, or a new corticosteroid prescription more than 6 weeks after initiation of treatment with a biologic. Secondary effectiveness outcomes included time to each component included in the composite score.

The primary safety outcome was the risk of serious infections, defined as those that required hospitalization. Secondary safety outcomes were risk of cancer and major adverse cardiovascular or venous thromboembolic events.

The researchers conducted a 1:1 propensity score-matched analysis, accounting for patient, disease, and treatment factors. The 754 patients included 377 incident users of vedolizumab, including 177 with Crohn’s disease; and 377 incident users of TNF antagonists, including 182 with Crohn’s disease. The average follow-up after treatment initiation occurred between 32 and 40 weeks.

Notably, patients treated with vedolizumab were more likely than those treated with TNF antagonists to have multimorbidity, at 16.2% versus 14.1%, and a higher burden of frailty, at 2.7% versus 1.9%. No significant differences were observed in the proportion of patients with recent immunomodulator and corticosteroid exposure.

Overall, vedolizumab was associated with a 31% increased risk of treatment failure (45.4%), compared with TNF antagonists (34.7%). This included an increased risk of IBD-related hospitalization (27.8% versus 16.3%) and IBD-related major abdominal surgery (21.3% versus 8%).

Among patients with Crohn’s disease, vedolizumab was associated with a 77% increased risk of treatment failure, as well as a greater need for corticosteroids. There was no significant difference in the risk of treatment failure or need for corticosteroids in patients with ulcerative colitis

No significant differences were seen in the risk of serious infections between patients treated with vedolizumab or TNF antagonists, at 8.2% versus 8.7%. This didn’t change by IBD phenotype, age at time of biologic therapy initiation, or treatment with biologic monotherapy versus combination therapy with immunomodulators.

The overall incidence of major adverse cardiovascular or venous thromboembolic events was similar among the groups. Rates of new malignant neoplasms were low, with fewer than five events.

In a subgroup analysis based on the Charlson Comorbidity Index, vedolizumab was associated with a 63% increased risk of treatment failure for patients without comorbidities but not for patients with comorbidities.

“This study adds to the body of literature comparing vedolizumab and anti-TNF in older adults. The findings have been mixed, in some part due to differences in study designs,” said Ashwin N. Ananthakrishnan, MBBS, MPH, associate professor of medicine at Harvard Medical School and a gastroenterologist at Massachusetts General Hospital, both in Boston.

Dr. Ashwin N. Ananthakrishnan

Dr. Ananthakrishnan, who wasn’t involved with this study, has previously researched the two treatments and found that they are comparably safe in older adults. In fact, among patients with significant comorbidity, vedolizumab may be safer. However, the Danish study wasn’t powered to describe that, he said. Moreover, patient characteristics and treatment approaches likely differ between the United States and Denmark.

“Overall, the findings are reassuring. Often when we treat older adults, the emphasis is on safety,” he said. “But by highlighting the difference in clinical response rates – their findings being consistent with a study we published a few years ago – it highlights the importance of also considering efficacy and onset of action for specific disease phenotypes in treatment selection.”

Dr. Ananthakrishnan and colleagues are currently developing clinical tools for risk stratification and prognostication in older adults with IBD, including functional and frailty assessments. “Biologically, older adults may be particularly vulnerable to specific treatment risks such as infections and cancer, but they are also vulnerable to the consequences of untreated disease, including loss of functional independence and frailty,” he explained. “Thus, arriving at the right risk to benefit balance is critically important when making treatment decisions for older adults.”

The study by Dr. Singh and colleagues was supported by grants from the National Institute of Diabetes and Digestive and Kidney Diseases and the Danish National Research Foundation. Dr. Singh reported receiving grants from pharmaceutical companies unrelated to the study, as well as support from the International Organization for the Study of Inflammatory Bowel Disease Operating Grant and Litwin Pioneers in IBD. No other disclosures were reported. Dr. Ananthakrishnan reported no relevant disclosures.

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