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Tumor markers are ‘valuable’ for relapse detection in rare CNS tumors
according to a pooled analysis of cooperative group trials.
The findings suggest a role for the routine use of tumor markers for surveillance in CNS-NGGCT patients, said Adriana Fonseca, MD, a pediatric neuro-oncology fellow at the Hospital for Sick Children in Toronto.
She presented these findings as part of the American Society of Clinical Oncology virtual scientific program.
This pooled analysis represents the largest prospective cohort to date of relapsed intracranial germ cell tumors, Dr. Fonseca said. The analysis included 483 patients enrolled in five prospective CNS-NGGCT trials between 1989 and 2016. There were 106 patients who relapsed after the end of therapy; the relapsed patients had a median age of 13 years (range, 1-30 years) at diagnosis and 82% were male.
Tumor marker utility
There were 86 patients with tumor marker assessments at diagnosis, and 83 had tumor marker elevations in serum, cerebrospinal fluid (CSF), or both.
The three patients without tumor marker elevations at diagnosis had mixed GCT, choriocarcinoma, and yolk sac tumor, which are usually associated with tumor marker elevation, so this will be investigated further, Dr. Fonseca said.
The sensitivity of tumor markers at diagnosis was 94% for serum, 83% for CSF, and 97% for either serum or CSF.
The median time to relapse was 15.5 months. Relapses were local in 45 patients (44%), distant in 32 (33%), and combined in 22 (21%). Three intracranial relapses were located outside of the radiation field and were classified as distant.
Only two patients presented with isolated tumor marker elevations as the sole evidence of relapse, and the elevations usually preceded the presence of macroscopic disease, Dr. Fonseca said.
At the time of relapse, 88% of patients (n = 73) had tumor marker elevations. The sensitivity of tumor markers was 82% in serum, 85% in CSF, and 88% in either.
To better understand if tumor markers can be used for surveillance, the researchers analyzed data from patients who had either serum or CSF tumor marker levels available at both diagnosis and relapse.
Of the 74 evaluable patients who had elevated tumor markers at diagnosis, 68 had elevated tumor markers at relapse as well. This means 92% of relapsed patients were detectable by tumor markers, Dr. Fonseca said.
“Only six patients had tumor marker–negative relapses, and interestingly, one patient who was tumor marker negative at diagnosis relapsed with tumor markers positive,” she added.
Rationale and next steps
CNS-NGGCTs are rare and heterogeneous tumors that respond best when treated using multimodal approaches, including surgical resection, chemotherapy, and radiation, according to Dr. Fonseca. The 5-year event-free and overall survival rates range from 72%-84% and 82%-93% respectively.
“GCTs are unique as they express tumor markers, such as AFP and beta-HCG, which we know are sensitive and specific and used for diagnostic and monitoring purposes,” Dr. Fonseca said.
Current surveillance strategies use a combination of brain and spine MRI and serum tumor markers with declining frequency over time.
“CSF tumor markers are not performed during follow-up, and they are usually obtained only at the time of relapse,” Dr. Fonseca said. “But what is the best surveillance strategy? We have to remember that some of our patients require sedation to undergo MRI, and recurrent sedations in children have been recently associated with potential detrimental neurocognitive effects.”
Similarly, the administration of gadolinium used for MRI has been associated with an increased risk of renal fibrosis and negative neurological outcomes.
“Additionally, nonspecific areas of enhancement are commonly encountered and can lead to unnecessary further investigations,” Dr. Fonseca said, adding that this can contribute to patients’ and parents’ anxiety and to increased overall health care costs and resource utilization.
Recent Children’s Oncology Group data showed that 98% of patients with extracranial germ cell tumors who relapsed were detectable by tumor markers alone, and this led to a change in surveillance guidelines for those patients. This raised the question as to whether a similar approach could be used in CNS-NCCGTs, Dr. Fonseca explained.
“We hypothesized that tumor markers alone may be sufficient for relapse detection in children and adolescents treated for CNS-NGGCT, and hence, the frequency and associated risk with serial MRIs could be safely avoided,” she said.
Though this study was limited by missing data in some cases, the inclusion of trials from different eras, and the use of different detection techniques across trials, the findings confirm the sensitivity of tumor markers in this setting.
“Tumor markers represent a valuable surveillance strategy with the potential to reduce MRI frequency in these patients,” Dr. Fonseca said. “Additionally, the higher proportion of tumor marker–negative relapses, compared to extracranial GCTs, suggests a different biological behavior. Further studies to investigate the biology of the primary versus relapsed samples in GCTs are currently needed.”
Dr. Fonseca and colleagues are “currently undertaking some correlative outcomes analyses to try to understand if the elevation or nonelevation to tumor markers is correlated with survival. We also would like to elucidate the optimal MRI frequency required for surveillance,” she said.
Dr. Fonseca reported having no disclosures, and the researchers disclosed no funding for the study.
sworcester@mdedge.com
SOURCE: Fonseca A et al. ASCO 2020, Abstract 2503.
according to a pooled analysis of cooperative group trials.
The findings suggest a role for the routine use of tumor markers for surveillance in CNS-NGGCT patients, said Adriana Fonseca, MD, a pediatric neuro-oncology fellow at the Hospital for Sick Children in Toronto.
She presented these findings as part of the American Society of Clinical Oncology virtual scientific program.
This pooled analysis represents the largest prospective cohort to date of relapsed intracranial germ cell tumors, Dr. Fonseca said. The analysis included 483 patients enrolled in five prospective CNS-NGGCT trials between 1989 and 2016. There were 106 patients who relapsed after the end of therapy; the relapsed patients had a median age of 13 years (range, 1-30 years) at diagnosis and 82% were male.
Tumor marker utility
There were 86 patients with tumor marker assessments at diagnosis, and 83 had tumor marker elevations in serum, cerebrospinal fluid (CSF), or both.
The three patients without tumor marker elevations at diagnosis had mixed GCT, choriocarcinoma, and yolk sac tumor, which are usually associated with tumor marker elevation, so this will be investigated further, Dr. Fonseca said.
The sensitivity of tumor markers at diagnosis was 94% for serum, 83% for CSF, and 97% for either serum or CSF.
The median time to relapse was 15.5 months. Relapses were local in 45 patients (44%), distant in 32 (33%), and combined in 22 (21%). Three intracranial relapses were located outside of the radiation field and were classified as distant.
Only two patients presented with isolated tumor marker elevations as the sole evidence of relapse, and the elevations usually preceded the presence of macroscopic disease, Dr. Fonseca said.
At the time of relapse, 88% of patients (n = 73) had tumor marker elevations. The sensitivity of tumor markers was 82% in serum, 85% in CSF, and 88% in either.
To better understand if tumor markers can be used for surveillance, the researchers analyzed data from patients who had either serum or CSF tumor marker levels available at both diagnosis and relapse.
Of the 74 evaluable patients who had elevated tumor markers at diagnosis, 68 had elevated tumor markers at relapse as well. This means 92% of relapsed patients were detectable by tumor markers, Dr. Fonseca said.
“Only six patients had tumor marker–negative relapses, and interestingly, one patient who was tumor marker negative at diagnosis relapsed with tumor markers positive,” she added.
Rationale and next steps
CNS-NGGCTs are rare and heterogeneous tumors that respond best when treated using multimodal approaches, including surgical resection, chemotherapy, and radiation, according to Dr. Fonseca. The 5-year event-free and overall survival rates range from 72%-84% and 82%-93% respectively.
“GCTs are unique as they express tumor markers, such as AFP and beta-HCG, which we know are sensitive and specific and used for diagnostic and monitoring purposes,” Dr. Fonseca said.
Current surveillance strategies use a combination of brain and spine MRI and serum tumor markers with declining frequency over time.
“CSF tumor markers are not performed during follow-up, and they are usually obtained only at the time of relapse,” Dr. Fonseca said. “But what is the best surveillance strategy? We have to remember that some of our patients require sedation to undergo MRI, and recurrent sedations in children have been recently associated with potential detrimental neurocognitive effects.”
Similarly, the administration of gadolinium used for MRI has been associated with an increased risk of renal fibrosis and negative neurological outcomes.
“Additionally, nonspecific areas of enhancement are commonly encountered and can lead to unnecessary further investigations,” Dr. Fonseca said, adding that this can contribute to patients’ and parents’ anxiety and to increased overall health care costs and resource utilization.
Recent Children’s Oncology Group data showed that 98% of patients with extracranial germ cell tumors who relapsed were detectable by tumor markers alone, and this led to a change in surveillance guidelines for those patients. This raised the question as to whether a similar approach could be used in CNS-NCCGTs, Dr. Fonseca explained.
“We hypothesized that tumor markers alone may be sufficient for relapse detection in children and adolescents treated for CNS-NGGCT, and hence, the frequency and associated risk with serial MRIs could be safely avoided,” she said.
Though this study was limited by missing data in some cases, the inclusion of trials from different eras, and the use of different detection techniques across trials, the findings confirm the sensitivity of tumor markers in this setting.
“Tumor markers represent a valuable surveillance strategy with the potential to reduce MRI frequency in these patients,” Dr. Fonseca said. “Additionally, the higher proportion of tumor marker–negative relapses, compared to extracranial GCTs, suggests a different biological behavior. Further studies to investigate the biology of the primary versus relapsed samples in GCTs are currently needed.”
Dr. Fonseca and colleagues are “currently undertaking some correlative outcomes analyses to try to understand if the elevation or nonelevation to tumor markers is correlated with survival. We also would like to elucidate the optimal MRI frequency required for surveillance,” she said.
Dr. Fonseca reported having no disclosures, and the researchers disclosed no funding for the study.
sworcester@mdedge.com
SOURCE: Fonseca A et al. ASCO 2020, Abstract 2503.
according to a pooled analysis of cooperative group trials.
The findings suggest a role for the routine use of tumor markers for surveillance in CNS-NGGCT patients, said Adriana Fonseca, MD, a pediatric neuro-oncology fellow at the Hospital for Sick Children in Toronto.
She presented these findings as part of the American Society of Clinical Oncology virtual scientific program.
This pooled analysis represents the largest prospective cohort to date of relapsed intracranial germ cell tumors, Dr. Fonseca said. The analysis included 483 patients enrolled in five prospective CNS-NGGCT trials between 1989 and 2016. There were 106 patients who relapsed after the end of therapy; the relapsed patients had a median age of 13 years (range, 1-30 years) at diagnosis and 82% were male.
Tumor marker utility
There were 86 patients with tumor marker assessments at diagnosis, and 83 had tumor marker elevations in serum, cerebrospinal fluid (CSF), or both.
The three patients without tumor marker elevations at diagnosis had mixed GCT, choriocarcinoma, and yolk sac tumor, which are usually associated with tumor marker elevation, so this will be investigated further, Dr. Fonseca said.
The sensitivity of tumor markers at diagnosis was 94% for serum, 83% for CSF, and 97% for either serum or CSF.
The median time to relapse was 15.5 months. Relapses were local in 45 patients (44%), distant in 32 (33%), and combined in 22 (21%). Three intracranial relapses were located outside of the radiation field and were classified as distant.
Only two patients presented with isolated tumor marker elevations as the sole evidence of relapse, and the elevations usually preceded the presence of macroscopic disease, Dr. Fonseca said.
At the time of relapse, 88% of patients (n = 73) had tumor marker elevations. The sensitivity of tumor markers was 82% in serum, 85% in CSF, and 88% in either.
To better understand if tumor markers can be used for surveillance, the researchers analyzed data from patients who had either serum or CSF tumor marker levels available at both diagnosis and relapse.
Of the 74 evaluable patients who had elevated tumor markers at diagnosis, 68 had elevated tumor markers at relapse as well. This means 92% of relapsed patients were detectable by tumor markers, Dr. Fonseca said.
“Only six patients had tumor marker–negative relapses, and interestingly, one patient who was tumor marker negative at diagnosis relapsed with tumor markers positive,” she added.
Rationale and next steps
CNS-NGGCTs are rare and heterogeneous tumors that respond best when treated using multimodal approaches, including surgical resection, chemotherapy, and radiation, according to Dr. Fonseca. The 5-year event-free and overall survival rates range from 72%-84% and 82%-93% respectively.
“GCTs are unique as they express tumor markers, such as AFP and beta-HCG, which we know are sensitive and specific and used for diagnostic and monitoring purposes,” Dr. Fonseca said.
Current surveillance strategies use a combination of brain and spine MRI and serum tumor markers with declining frequency over time.
“CSF tumor markers are not performed during follow-up, and they are usually obtained only at the time of relapse,” Dr. Fonseca said. “But what is the best surveillance strategy? We have to remember that some of our patients require sedation to undergo MRI, and recurrent sedations in children have been recently associated with potential detrimental neurocognitive effects.”
Similarly, the administration of gadolinium used for MRI has been associated with an increased risk of renal fibrosis and negative neurological outcomes.
“Additionally, nonspecific areas of enhancement are commonly encountered and can lead to unnecessary further investigations,” Dr. Fonseca said, adding that this can contribute to patients’ and parents’ anxiety and to increased overall health care costs and resource utilization.
Recent Children’s Oncology Group data showed that 98% of patients with extracranial germ cell tumors who relapsed were detectable by tumor markers alone, and this led to a change in surveillance guidelines for those patients. This raised the question as to whether a similar approach could be used in CNS-NCCGTs, Dr. Fonseca explained.
“We hypothesized that tumor markers alone may be sufficient for relapse detection in children and adolescents treated for CNS-NGGCT, and hence, the frequency and associated risk with serial MRIs could be safely avoided,” she said.
Though this study was limited by missing data in some cases, the inclusion of trials from different eras, and the use of different detection techniques across trials, the findings confirm the sensitivity of tumor markers in this setting.
“Tumor markers represent a valuable surveillance strategy with the potential to reduce MRI frequency in these patients,” Dr. Fonseca said. “Additionally, the higher proportion of tumor marker–negative relapses, compared to extracranial GCTs, suggests a different biological behavior. Further studies to investigate the biology of the primary versus relapsed samples in GCTs are currently needed.”
Dr. Fonseca and colleagues are “currently undertaking some correlative outcomes analyses to try to understand if the elevation or nonelevation to tumor markers is correlated with survival. We also would like to elucidate the optimal MRI frequency required for surveillance,” she said.
Dr. Fonseca reported having no disclosures, and the researchers disclosed no funding for the study.
sworcester@mdedge.com
SOURCE: Fonseca A et al. ASCO 2020, Abstract 2503.
FROM ASCO 2020
Dapagliflozin benefits low-EF heart failure regardless of diuretic dose: DAPA-HF
The DAPA-HF trial has already changed cardiology in opening up a new class of drugs to patients with heart failure (HF), whether or not they have diabetes. Now the trial is yielding clues as to how it benefits them. For now, it’s doing so by process of elimination.
A new analysis suggests that dapagliflozin (Farxiga, AstraZeneca) didn’t need help from loop diuretics to cut the risk for clinical events in patients with HF with reduced ejection fraction (HFrEF), a benefit seen across the spectrum of glycosylated hemoglobin levels and without compromising renal function, said DAPA-HF investigators. Also, use of dapagliflozin and its clinical effects were not associated with changes in loop diuretic dosage. Those findings and others suggest the drug helps in HFrEF at least partly by some other mechanism than its own diuretic effect, the researchers say.
Such insights will likely be important to case-by-case decisions on whether to use the drug, a sodium-glucose cotransporter 2 (SGLT2) inhibitor once reserved for patients with diabetes, given the recently broader landscape of HF treatment options.
As previously reported from DAPA-HF, with more than 4,700 patients, those who received dapagliflozin showed significant reductions in the primary end point, a composite of cardiovascular (CV) death, HF hospitalization, and urgent HF visit requiring IV therapy over about 18 months. The 45% of patients with and 55% without type 2 diabetes enjoyed about equal benefit in the placebo-controlled trial for that end point, as well as for all-cause mortality.
SGLT2 inhibitors work in diabetes by promoting urinary glucose excretion. That had led some to speculate that its benefit in HFrEF comes primarily from a diuretic effect; the current findings largely put that question to rest.
“Our findings show that treatment with dapagliflozin was effective regardless of diuretic use or diuretic dose. They also show that dapagliflozin did not lead to an increase in renal adverse events or discontinuation of therapy in patients treated with a diuretic,” trialist Alice M. Jackson, MB, ChB, said in an interview.
“In fact, renal adverse events were generally less common in patients treated with dapagliflozin, across the diuretic categories,” said Dr. Jackson, from the University of Glasgow.
Dr. Jackson presented the new analysis at a Late-Breaking Science Session during the European Society of Cardiology Heart Failure Discoveries virtual meeting. The HFA sessions were conducted virtually this year due to the COVID-19 pandemic.
At baseline, 84% of patients were on conventional diuretics. The post hoc analysis broke out all patients by loop-diuretic dosage level: none; less than 40 mg furosemide equivalents (FE); 40 mg FE; or more than 40 mg FE. Clinical outcomes were similar across the four groups.
Clinicians in the trial “were not given specific advice about adjusting diuretic doses, but were encouraged to assess volume status and make changes to medical therapy based on this, if necessary,” Dr. Jackson said. “This suggests that, for most patients, starting dapagliflozin will not necessitate a change in diuretic dose.”
With the caveat that the event rate was low in the relatively few patients not prescribed loop diuretics, she said, “the magnitude of the benefit from dapagliflozin appeared to be larger in patients not treated with a diuretic.”
There was no suggestion of a diuretic dose–response effect or statistical interaction between diuretic use and clinical outcomes on dapagliflozin, Dr. Jackson observed in the interview.
Of note in the analysis, hematocrit levels shot up soon after patients started active therapy, but they didn’t rise much in the placebo group. The sustained hematocrit elevation on dapagliflozin, seen at all diuretic dosage levels, persisted even after dosage reductions at 6 months, she said.
“Dapagliflozin is effective in HFrEF irrespective of background diuretic therapy; therefore, it is almost certainly not purely acting as a diuretic,” Andrew J. Coats, MD, DSc, MBA, said in an interview.
The findings also “lessen the concern that dapagliflozin’s beneficial effects are only seen only in patients without effective diuretic dosing,” said Dr. Coats, from University of Warwick, Coventry, England.
“Altogether, these data give further reassurance that dapagliflozin can safely be used in heart failure, and has a beneficial effect independent of the use of diuretic drugs,” invited discussant Wolfram Doehner, MD, PhD, Charité-Universitätsmedizin Berlin, said after Dr. Jackson’s presentation of the analysis.
He made special mention of the sustained hematocrit elevation on dapagliflozin. “While this effect may likely relate to the mild reduction in plasma volume secondary to dapagliflozin therapy, it is noted that the increase in hematocrit was independent of any change of the diuretic dose,” Doehner said. “If additional mechanisms have a role for this observed increase in hematocrit, it may be of interest in further investigations.”
Dr. Jackson pointed to several observations that suggest the hematocrit finding isn’t explained by hemoconcentration from reduced plasma volume, at least not entirely.
For example, hematocrit levels rose “without any suggestion of a relationship between diuretic dose and degree of hematocrit elevation with dapagliflozin,” she said.
The elevations persisted even with diuretic dose reductions at 6 and 12 months, “which should have led to a decrease in hemoconcentration if it was caused by volume contraction.”
Also, she said, “among patients not taking a diuretic, volume depletion occurred less frequently in the dapagliflozin group than in the placebo group, but there was still a similar rise in hematocrit with dapagliflozin.”
Both Dr. Jackson and Dr. Coats said the sustained elevation in hematocrit on the drug is unlikely to pose a major hazard.
Dr. Coats said that, theoretically, “increased hematocrit could reduce peripheral vessel blood flow, making ischemia and thrombosis more likely. But the size of the effect is small and unlikely to be clinically important.”
A diuretic dose could not be determined for 128 of the trial’s 4,744 randomized patients with HFrEF, so the post hoc analysis was limited to the remaining 4,616. Of those, 746 were not on diuretics at baseline, 1,311 were on loop diuretics at less than 40 mg FE or on non-loop diuretics only, 1,365 were taking 40 mg FE, and 1,204 were on higher doses of loop diuretics.
The mean baseline dosage was 60 mg FE, which rose slightly throughout the trial. But the baseline dosage and the increases were both similar in the placebo and dapagliflozin groups. Dr. Jackson said 84% and 83% of patients on dapagliflozin and placebo, respectively, maintained their baseline dose at 6 months and about 77% in both groups at 12 months.
The overall trial’s significant primary endpoint reduction for dapagliflozin versus placebo applied similarly to patients not on a diuretics and to those on any dose of diuretic, with an interaction P value of .23 for the effect of diuretic use. The hazard ratios (95% confidence interval) were 0.57 (0.36-0.92) for patients not on diuretics, 0.78 (0.68-0.90) for patients on any diuretic dosage, and 0.74 (0.65-0.85) overall
Dr. Jackson said during her formal online presentation that patients on diuretics showed a “tendency toward slightly more volume depletion in those on dapagliflozin than in those on placebo, but the excess was small and not greater than approximately 3% in those taking 40 mg furosemide equivalent diuretic. And fortunately, this did not result in an increase in frequency in renal adverse events nor of discontinuation of study drug.”
Renal adverse events were similarly prevalent in the two treatment groups, as were such events leading to treatment discontinuation. But serious renal events were less common in the dapagliflozin group (1.6% vs 2.7%; P = .009), as was investigator-reported serious acute kidney injury (1.0% vs 1.9%; P = .007).
“Overall, renal events were infrequent,” Dr. Jackson said, and “because of the small number of events, it is very difficult to draw conclusions about the impact of dapagliflozin on renal function according to diuretic-dose subgroups.”
Still, she said, worsening renal function was less common on dapagliflozin in three of the four groups by diuretic dosage; the exception was the less than 40 mg FE group, “but the absolute difference in this group was only two events.”
There seem to be dapagliflozin mechanisms “underneath the surface that need to be unraveled,” Dr. Doehner said as discussant, processes that are favorable for the treatment of HFrEF in which “diuretics play no big role.”
Dr. Jackson has no disclosures. Dr. Coats has disclosed receiving personal fees from Actimed, AstraZeneca, Faraday, WL Gore, Menarini, Novartis, Nutricia, Respicardia, Servier, Stealth Peptides, Verona, and Vifor. Dr. Doener has recently disclosed receiving grants and personal fees from Vifor, Pfizer, Boehringer Ingelheim, Sphingotec, ZS Pharma, Bayer, and Medtronic.
A version of this article originally appeared on Medscape.com.
The DAPA-HF trial has already changed cardiology in opening up a new class of drugs to patients with heart failure (HF), whether or not they have diabetes. Now the trial is yielding clues as to how it benefits them. For now, it’s doing so by process of elimination.
A new analysis suggests that dapagliflozin (Farxiga, AstraZeneca) didn’t need help from loop diuretics to cut the risk for clinical events in patients with HF with reduced ejection fraction (HFrEF), a benefit seen across the spectrum of glycosylated hemoglobin levels and without compromising renal function, said DAPA-HF investigators. Also, use of dapagliflozin and its clinical effects were not associated with changes in loop diuretic dosage. Those findings and others suggest the drug helps in HFrEF at least partly by some other mechanism than its own diuretic effect, the researchers say.
Such insights will likely be important to case-by-case decisions on whether to use the drug, a sodium-glucose cotransporter 2 (SGLT2) inhibitor once reserved for patients with diabetes, given the recently broader landscape of HF treatment options.
As previously reported from DAPA-HF, with more than 4,700 patients, those who received dapagliflozin showed significant reductions in the primary end point, a composite of cardiovascular (CV) death, HF hospitalization, and urgent HF visit requiring IV therapy over about 18 months. The 45% of patients with and 55% without type 2 diabetes enjoyed about equal benefit in the placebo-controlled trial for that end point, as well as for all-cause mortality.
SGLT2 inhibitors work in diabetes by promoting urinary glucose excretion. That had led some to speculate that its benefit in HFrEF comes primarily from a diuretic effect; the current findings largely put that question to rest.
“Our findings show that treatment with dapagliflozin was effective regardless of diuretic use or diuretic dose. They also show that dapagliflozin did not lead to an increase in renal adverse events or discontinuation of therapy in patients treated with a diuretic,” trialist Alice M. Jackson, MB, ChB, said in an interview.
“In fact, renal adverse events were generally less common in patients treated with dapagliflozin, across the diuretic categories,” said Dr. Jackson, from the University of Glasgow.
Dr. Jackson presented the new analysis at a Late-Breaking Science Session during the European Society of Cardiology Heart Failure Discoveries virtual meeting. The HFA sessions were conducted virtually this year due to the COVID-19 pandemic.
At baseline, 84% of patients were on conventional diuretics. The post hoc analysis broke out all patients by loop-diuretic dosage level: none; less than 40 mg furosemide equivalents (FE); 40 mg FE; or more than 40 mg FE. Clinical outcomes were similar across the four groups.
Clinicians in the trial “were not given specific advice about adjusting diuretic doses, but were encouraged to assess volume status and make changes to medical therapy based on this, if necessary,” Dr. Jackson said. “This suggests that, for most patients, starting dapagliflozin will not necessitate a change in diuretic dose.”
With the caveat that the event rate was low in the relatively few patients not prescribed loop diuretics, she said, “the magnitude of the benefit from dapagliflozin appeared to be larger in patients not treated with a diuretic.”
There was no suggestion of a diuretic dose–response effect or statistical interaction between diuretic use and clinical outcomes on dapagliflozin, Dr. Jackson observed in the interview.
Of note in the analysis, hematocrit levels shot up soon after patients started active therapy, but they didn’t rise much in the placebo group. The sustained hematocrit elevation on dapagliflozin, seen at all diuretic dosage levels, persisted even after dosage reductions at 6 months, she said.
“Dapagliflozin is effective in HFrEF irrespective of background diuretic therapy; therefore, it is almost certainly not purely acting as a diuretic,” Andrew J. Coats, MD, DSc, MBA, said in an interview.
The findings also “lessen the concern that dapagliflozin’s beneficial effects are only seen only in patients without effective diuretic dosing,” said Dr. Coats, from University of Warwick, Coventry, England.
“Altogether, these data give further reassurance that dapagliflozin can safely be used in heart failure, and has a beneficial effect independent of the use of diuretic drugs,” invited discussant Wolfram Doehner, MD, PhD, Charité-Universitätsmedizin Berlin, said after Dr. Jackson’s presentation of the analysis.
He made special mention of the sustained hematocrit elevation on dapagliflozin. “While this effect may likely relate to the mild reduction in plasma volume secondary to dapagliflozin therapy, it is noted that the increase in hematocrit was independent of any change of the diuretic dose,” Doehner said. “If additional mechanisms have a role for this observed increase in hematocrit, it may be of interest in further investigations.”
Dr. Jackson pointed to several observations that suggest the hematocrit finding isn’t explained by hemoconcentration from reduced plasma volume, at least not entirely.
For example, hematocrit levels rose “without any suggestion of a relationship between diuretic dose and degree of hematocrit elevation with dapagliflozin,” she said.
The elevations persisted even with diuretic dose reductions at 6 and 12 months, “which should have led to a decrease in hemoconcentration if it was caused by volume contraction.”
Also, she said, “among patients not taking a diuretic, volume depletion occurred less frequently in the dapagliflozin group than in the placebo group, but there was still a similar rise in hematocrit with dapagliflozin.”
Both Dr. Jackson and Dr. Coats said the sustained elevation in hematocrit on the drug is unlikely to pose a major hazard.
Dr. Coats said that, theoretically, “increased hematocrit could reduce peripheral vessel blood flow, making ischemia and thrombosis more likely. But the size of the effect is small and unlikely to be clinically important.”
A diuretic dose could not be determined for 128 of the trial’s 4,744 randomized patients with HFrEF, so the post hoc analysis was limited to the remaining 4,616. Of those, 746 were not on diuretics at baseline, 1,311 were on loop diuretics at less than 40 mg FE or on non-loop diuretics only, 1,365 were taking 40 mg FE, and 1,204 were on higher doses of loop diuretics.
The mean baseline dosage was 60 mg FE, which rose slightly throughout the trial. But the baseline dosage and the increases were both similar in the placebo and dapagliflozin groups. Dr. Jackson said 84% and 83% of patients on dapagliflozin and placebo, respectively, maintained their baseline dose at 6 months and about 77% in both groups at 12 months.
The overall trial’s significant primary endpoint reduction for dapagliflozin versus placebo applied similarly to patients not on a diuretics and to those on any dose of diuretic, with an interaction P value of .23 for the effect of diuretic use. The hazard ratios (95% confidence interval) were 0.57 (0.36-0.92) for patients not on diuretics, 0.78 (0.68-0.90) for patients on any diuretic dosage, and 0.74 (0.65-0.85) overall
Dr. Jackson said during her formal online presentation that patients on diuretics showed a “tendency toward slightly more volume depletion in those on dapagliflozin than in those on placebo, but the excess was small and not greater than approximately 3% in those taking 40 mg furosemide equivalent diuretic. And fortunately, this did not result in an increase in frequency in renal adverse events nor of discontinuation of study drug.”
Renal adverse events were similarly prevalent in the two treatment groups, as were such events leading to treatment discontinuation. But serious renal events were less common in the dapagliflozin group (1.6% vs 2.7%; P = .009), as was investigator-reported serious acute kidney injury (1.0% vs 1.9%; P = .007).
“Overall, renal events were infrequent,” Dr. Jackson said, and “because of the small number of events, it is very difficult to draw conclusions about the impact of dapagliflozin on renal function according to diuretic-dose subgroups.”
Still, she said, worsening renal function was less common on dapagliflozin in three of the four groups by diuretic dosage; the exception was the less than 40 mg FE group, “but the absolute difference in this group was only two events.”
There seem to be dapagliflozin mechanisms “underneath the surface that need to be unraveled,” Dr. Doehner said as discussant, processes that are favorable for the treatment of HFrEF in which “diuretics play no big role.”
Dr. Jackson has no disclosures. Dr. Coats has disclosed receiving personal fees from Actimed, AstraZeneca, Faraday, WL Gore, Menarini, Novartis, Nutricia, Respicardia, Servier, Stealth Peptides, Verona, and Vifor. Dr. Doener has recently disclosed receiving grants and personal fees from Vifor, Pfizer, Boehringer Ingelheim, Sphingotec, ZS Pharma, Bayer, and Medtronic.
A version of this article originally appeared on Medscape.com.
The DAPA-HF trial has already changed cardiology in opening up a new class of drugs to patients with heart failure (HF), whether or not they have diabetes. Now the trial is yielding clues as to how it benefits them. For now, it’s doing so by process of elimination.
A new analysis suggests that dapagliflozin (Farxiga, AstraZeneca) didn’t need help from loop diuretics to cut the risk for clinical events in patients with HF with reduced ejection fraction (HFrEF), a benefit seen across the spectrum of glycosylated hemoglobin levels and without compromising renal function, said DAPA-HF investigators. Also, use of dapagliflozin and its clinical effects were not associated with changes in loop diuretic dosage. Those findings and others suggest the drug helps in HFrEF at least partly by some other mechanism than its own diuretic effect, the researchers say.
Such insights will likely be important to case-by-case decisions on whether to use the drug, a sodium-glucose cotransporter 2 (SGLT2) inhibitor once reserved for patients with diabetes, given the recently broader landscape of HF treatment options.
As previously reported from DAPA-HF, with more than 4,700 patients, those who received dapagliflozin showed significant reductions in the primary end point, a composite of cardiovascular (CV) death, HF hospitalization, and urgent HF visit requiring IV therapy over about 18 months. The 45% of patients with and 55% without type 2 diabetes enjoyed about equal benefit in the placebo-controlled trial for that end point, as well as for all-cause mortality.
SGLT2 inhibitors work in diabetes by promoting urinary glucose excretion. That had led some to speculate that its benefit in HFrEF comes primarily from a diuretic effect; the current findings largely put that question to rest.
“Our findings show that treatment with dapagliflozin was effective regardless of diuretic use or diuretic dose. They also show that dapagliflozin did not lead to an increase in renal adverse events or discontinuation of therapy in patients treated with a diuretic,” trialist Alice M. Jackson, MB, ChB, said in an interview.
“In fact, renal adverse events were generally less common in patients treated with dapagliflozin, across the diuretic categories,” said Dr. Jackson, from the University of Glasgow.
Dr. Jackson presented the new analysis at a Late-Breaking Science Session during the European Society of Cardiology Heart Failure Discoveries virtual meeting. The HFA sessions were conducted virtually this year due to the COVID-19 pandemic.
At baseline, 84% of patients were on conventional diuretics. The post hoc analysis broke out all patients by loop-diuretic dosage level: none; less than 40 mg furosemide equivalents (FE); 40 mg FE; or more than 40 mg FE. Clinical outcomes were similar across the four groups.
Clinicians in the trial “were not given specific advice about adjusting diuretic doses, but were encouraged to assess volume status and make changes to medical therapy based on this, if necessary,” Dr. Jackson said. “This suggests that, for most patients, starting dapagliflozin will not necessitate a change in diuretic dose.”
With the caveat that the event rate was low in the relatively few patients not prescribed loop diuretics, she said, “the magnitude of the benefit from dapagliflozin appeared to be larger in patients not treated with a diuretic.”
There was no suggestion of a diuretic dose–response effect or statistical interaction between diuretic use and clinical outcomes on dapagliflozin, Dr. Jackson observed in the interview.
Of note in the analysis, hematocrit levels shot up soon after patients started active therapy, but they didn’t rise much in the placebo group. The sustained hematocrit elevation on dapagliflozin, seen at all diuretic dosage levels, persisted even after dosage reductions at 6 months, she said.
“Dapagliflozin is effective in HFrEF irrespective of background diuretic therapy; therefore, it is almost certainly not purely acting as a diuretic,” Andrew J. Coats, MD, DSc, MBA, said in an interview.
The findings also “lessen the concern that dapagliflozin’s beneficial effects are only seen only in patients without effective diuretic dosing,” said Dr. Coats, from University of Warwick, Coventry, England.
“Altogether, these data give further reassurance that dapagliflozin can safely be used in heart failure, and has a beneficial effect independent of the use of diuretic drugs,” invited discussant Wolfram Doehner, MD, PhD, Charité-Universitätsmedizin Berlin, said after Dr. Jackson’s presentation of the analysis.
He made special mention of the sustained hematocrit elevation on dapagliflozin. “While this effect may likely relate to the mild reduction in plasma volume secondary to dapagliflozin therapy, it is noted that the increase in hematocrit was independent of any change of the diuretic dose,” Doehner said. “If additional mechanisms have a role for this observed increase in hematocrit, it may be of interest in further investigations.”
Dr. Jackson pointed to several observations that suggest the hematocrit finding isn’t explained by hemoconcentration from reduced plasma volume, at least not entirely.
For example, hematocrit levels rose “without any suggestion of a relationship between diuretic dose and degree of hematocrit elevation with dapagliflozin,” she said.
The elevations persisted even with diuretic dose reductions at 6 and 12 months, “which should have led to a decrease in hemoconcentration if it was caused by volume contraction.”
Also, she said, “among patients not taking a diuretic, volume depletion occurred less frequently in the dapagliflozin group than in the placebo group, but there was still a similar rise in hematocrit with dapagliflozin.”
Both Dr. Jackson and Dr. Coats said the sustained elevation in hematocrit on the drug is unlikely to pose a major hazard.
Dr. Coats said that, theoretically, “increased hematocrit could reduce peripheral vessel blood flow, making ischemia and thrombosis more likely. But the size of the effect is small and unlikely to be clinically important.”
A diuretic dose could not be determined for 128 of the trial’s 4,744 randomized patients with HFrEF, so the post hoc analysis was limited to the remaining 4,616. Of those, 746 were not on diuretics at baseline, 1,311 were on loop diuretics at less than 40 mg FE or on non-loop diuretics only, 1,365 were taking 40 mg FE, and 1,204 were on higher doses of loop diuretics.
The mean baseline dosage was 60 mg FE, which rose slightly throughout the trial. But the baseline dosage and the increases were both similar in the placebo and dapagliflozin groups. Dr. Jackson said 84% and 83% of patients on dapagliflozin and placebo, respectively, maintained their baseline dose at 6 months and about 77% in both groups at 12 months.
The overall trial’s significant primary endpoint reduction for dapagliflozin versus placebo applied similarly to patients not on a diuretics and to those on any dose of diuretic, with an interaction P value of .23 for the effect of diuretic use. The hazard ratios (95% confidence interval) were 0.57 (0.36-0.92) for patients not on diuretics, 0.78 (0.68-0.90) for patients on any diuretic dosage, and 0.74 (0.65-0.85) overall
Dr. Jackson said during her formal online presentation that patients on diuretics showed a “tendency toward slightly more volume depletion in those on dapagliflozin than in those on placebo, but the excess was small and not greater than approximately 3% in those taking 40 mg furosemide equivalent diuretic. And fortunately, this did not result in an increase in frequency in renal adverse events nor of discontinuation of study drug.”
Renal adverse events were similarly prevalent in the two treatment groups, as were such events leading to treatment discontinuation. But serious renal events were less common in the dapagliflozin group (1.6% vs 2.7%; P = .009), as was investigator-reported serious acute kidney injury (1.0% vs 1.9%; P = .007).
“Overall, renal events were infrequent,” Dr. Jackson said, and “because of the small number of events, it is very difficult to draw conclusions about the impact of dapagliflozin on renal function according to diuretic-dose subgroups.”
Still, she said, worsening renal function was less common on dapagliflozin in three of the four groups by diuretic dosage; the exception was the less than 40 mg FE group, “but the absolute difference in this group was only two events.”
There seem to be dapagliflozin mechanisms “underneath the surface that need to be unraveled,” Dr. Doehner said as discussant, processes that are favorable for the treatment of HFrEF in which “diuretics play no big role.”
Dr. Jackson has no disclosures. Dr. Coats has disclosed receiving personal fees from Actimed, AstraZeneca, Faraday, WL Gore, Menarini, Novartis, Nutricia, Respicardia, Servier, Stealth Peptides, Verona, and Vifor. Dr. Doener has recently disclosed receiving grants and personal fees from Vifor, Pfizer, Boehringer Ingelheim, Sphingotec, ZS Pharma, Bayer, and Medtronic.
A version of this article originally appeared on Medscape.com.
FROM ESC HEART FAILURE 2020
Personalized cancer vaccine may enhance checkpoint inhibitor activity
Combining a personalized cancer vaccine with an immune checkpoint inhibitor induced neoantigen-specific immune responses in most patients with advanced solid tumors in a phase 1b study.
Only two clinical responses were seen in this early investigation of the vaccine, RO7198457, combined with the PD-L1 inhibitor atezolizumab. However, T-cell responses were observed in about three-quarters of the patients evaluated, according to study investigator Juanita Lopez, MB BChir, PhD.
Those immune responses, coupled with preliminary evidence of infiltration of RO7198457-stimulated T cells into tumors, suggest the viability of this individualized anticancer strategy, according to Dr. Lopez, a consultant medical oncologist at The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, London.
“Failure of T-cell priming is a major cause of lack of response to immune checkpoint inhibitors,” Dr. Lopez said in an interview. “We hoped that, by eliciting a tumor-specific T-cell response, we would be able to overcome this.”
Preclinical data suggested the combination of vaccine and immune checkpoint inhibitors improved outcomes, which prompted the current study, added Dr. Lopez, who presented results from this study at the American Association for Cancer Research virtual meeting II.
Dr. Lopez noted that mutated neoantigens are recognized as foreign and have been shown to induce stronger T-cell responses, compared with shared antigens, likely because of a lack of central tolerance.
“Most of these mutated neoantigens are not shared between the patients, and therefore, targeted neoantigen-specific therapy requires an individualized approach,” she explained.
RO7198457 is manufactured on a per-patient basis and includes as many as 20 tumor-specific neoepitopes.
Study details
Dr. Lopez presented results from dose-escalation and expansion cohorts of the study, which included 142 patients with advanced solid tumors. The patients had colorectal, skin, kidney, lung, urothelial, breast, gynecologic, and head and neck cancers.
Most patients had low or no PD-L1 expression, and nearly 40% had received prior treatment with a checkpoint inhibitor.
Patients received nine doses of RO7198457 at 25-50 mcg during the 12-week induction stage. They then received RO7198457 every eight cycles until disease progression. Patients received atezolizumab at 1,200 mg on day 1 of each 21-day cycle.
Induction of proinflammatory cytokines was observed at each dose tested, and ex vivo T-cell responses were noted in 46 of 63 patients evaluated, or 73%.
T-cell receptors specific to RO7198457 were present posttreatment in a patient with rectal cancer, providing some preliminary evidence suggesting infiltration of RO7198457-stimulated T cells in the tumor, Dr. Lopez said.
There were two clinical responses. A patient with rectal cancer had a complete response, and a patient with triple-negative breast cancer had a partial response.
The combination of RO7198457 with atezolizumab was generally well tolerated, and the maximum tolerated dose was not reached, Dr. Lopez said. Most adverse events were grade 1/2, and immune-mediated adverse events were rare.
Implications and next steps
This study furthers earlier observations from neoantigen vaccine studies by linking dosing of the vaccine to dosing with immune checkpoint inhibitor, rather than giving the vaccine in the period leading up to immune checkpoint inhibitor administration, according to former AACR President Elaine R. Mardis, PhD, of Nationwide Children’s Hospital and The Ohio State University College of Medicine, both in Columbus.
That said, the implications for clinical practice remain unclear, according to Dr. Mardis.
“This combination did elicit an immune response that was highly specific for the neoantigen vaccine, but most patients did not receive a clinical benefit of disease response,” Dr. Mardis said in an interview. “This tells us the combination approach used was, overall, not quite right, and we need to continue to innovate in this area.”
The low clinical response rate in the study was likely caused in part by the fact that patients had very advanced disease and were heavily pretreated, according to Dr. Lopez
Randomized phase 2 studies of RO7198457 are now underway, Dr. Lopez said. One is a study of RO7198457 plus atezolizumab as adjuvant treatment for non–small cell lung cancer (NCT04267237). Another is testing RO7198457 in combination with pembrolizumab as first-line treatment for melanoma (NCT03815058).
The current study was funded by Genentech and BioNTech. Dr. Lopez reported disclosures related to Roche/Genentech, Basilea Pharmaceutica, and Genmab. Dr. Mardis reported disclosures related to Quiagen NV, PACT Pharma, Kiadis Pharma NV, and Interpreta.
SOURCE: Lopez J et al. AACR 2020, Abstract CT301.
Combining a personalized cancer vaccine with an immune checkpoint inhibitor induced neoantigen-specific immune responses in most patients with advanced solid tumors in a phase 1b study.
Only two clinical responses were seen in this early investigation of the vaccine, RO7198457, combined with the PD-L1 inhibitor atezolizumab. However, T-cell responses were observed in about three-quarters of the patients evaluated, according to study investigator Juanita Lopez, MB BChir, PhD.
Those immune responses, coupled with preliminary evidence of infiltration of RO7198457-stimulated T cells into tumors, suggest the viability of this individualized anticancer strategy, according to Dr. Lopez, a consultant medical oncologist at The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, London.
“Failure of T-cell priming is a major cause of lack of response to immune checkpoint inhibitors,” Dr. Lopez said in an interview. “We hoped that, by eliciting a tumor-specific T-cell response, we would be able to overcome this.”
Preclinical data suggested the combination of vaccine and immune checkpoint inhibitors improved outcomes, which prompted the current study, added Dr. Lopez, who presented results from this study at the American Association for Cancer Research virtual meeting II.
Dr. Lopez noted that mutated neoantigens are recognized as foreign and have been shown to induce stronger T-cell responses, compared with shared antigens, likely because of a lack of central tolerance.
“Most of these mutated neoantigens are not shared between the patients, and therefore, targeted neoantigen-specific therapy requires an individualized approach,” she explained.
RO7198457 is manufactured on a per-patient basis and includes as many as 20 tumor-specific neoepitopes.
Study details
Dr. Lopez presented results from dose-escalation and expansion cohorts of the study, which included 142 patients with advanced solid tumors. The patients had colorectal, skin, kidney, lung, urothelial, breast, gynecologic, and head and neck cancers.
Most patients had low or no PD-L1 expression, and nearly 40% had received prior treatment with a checkpoint inhibitor.
Patients received nine doses of RO7198457 at 25-50 mcg during the 12-week induction stage. They then received RO7198457 every eight cycles until disease progression. Patients received atezolizumab at 1,200 mg on day 1 of each 21-day cycle.
Induction of proinflammatory cytokines was observed at each dose tested, and ex vivo T-cell responses were noted in 46 of 63 patients evaluated, or 73%.
T-cell receptors specific to RO7198457 were present posttreatment in a patient with rectal cancer, providing some preliminary evidence suggesting infiltration of RO7198457-stimulated T cells in the tumor, Dr. Lopez said.
There were two clinical responses. A patient with rectal cancer had a complete response, and a patient with triple-negative breast cancer had a partial response.
The combination of RO7198457 with atezolizumab was generally well tolerated, and the maximum tolerated dose was not reached, Dr. Lopez said. Most adverse events were grade 1/2, and immune-mediated adverse events were rare.
Implications and next steps
This study furthers earlier observations from neoantigen vaccine studies by linking dosing of the vaccine to dosing with immune checkpoint inhibitor, rather than giving the vaccine in the period leading up to immune checkpoint inhibitor administration, according to former AACR President Elaine R. Mardis, PhD, of Nationwide Children’s Hospital and The Ohio State University College of Medicine, both in Columbus.
That said, the implications for clinical practice remain unclear, according to Dr. Mardis.
“This combination did elicit an immune response that was highly specific for the neoantigen vaccine, but most patients did not receive a clinical benefit of disease response,” Dr. Mardis said in an interview. “This tells us the combination approach used was, overall, not quite right, and we need to continue to innovate in this area.”
The low clinical response rate in the study was likely caused in part by the fact that patients had very advanced disease and were heavily pretreated, according to Dr. Lopez
Randomized phase 2 studies of RO7198457 are now underway, Dr. Lopez said. One is a study of RO7198457 plus atezolizumab as adjuvant treatment for non–small cell lung cancer (NCT04267237). Another is testing RO7198457 in combination with pembrolizumab as first-line treatment for melanoma (NCT03815058).
The current study was funded by Genentech and BioNTech. Dr. Lopez reported disclosures related to Roche/Genentech, Basilea Pharmaceutica, and Genmab. Dr. Mardis reported disclosures related to Quiagen NV, PACT Pharma, Kiadis Pharma NV, and Interpreta.
SOURCE: Lopez J et al. AACR 2020, Abstract CT301.
Combining a personalized cancer vaccine with an immune checkpoint inhibitor induced neoantigen-specific immune responses in most patients with advanced solid tumors in a phase 1b study.
Only two clinical responses were seen in this early investigation of the vaccine, RO7198457, combined with the PD-L1 inhibitor atezolizumab. However, T-cell responses were observed in about three-quarters of the patients evaluated, according to study investigator Juanita Lopez, MB BChir, PhD.
Those immune responses, coupled with preliminary evidence of infiltration of RO7198457-stimulated T cells into tumors, suggest the viability of this individualized anticancer strategy, according to Dr. Lopez, a consultant medical oncologist at The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, London.
“Failure of T-cell priming is a major cause of lack of response to immune checkpoint inhibitors,” Dr. Lopez said in an interview. “We hoped that, by eliciting a tumor-specific T-cell response, we would be able to overcome this.”
Preclinical data suggested the combination of vaccine and immune checkpoint inhibitors improved outcomes, which prompted the current study, added Dr. Lopez, who presented results from this study at the American Association for Cancer Research virtual meeting II.
Dr. Lopez noted that mutated neoantigens are recognized as foreign and have been shown to induce stronger T-cell responses, compared with shared antigens, likely because of a lack of central tolerance.
“Most of these mutated neoantigens are not shared between the patients, and therefore, targeted neoantigen-specific therapy requires an individualized approach,” she explained.
RO7198457 is manufactured on a per-patient basis and includes as many as 20 tumor-specific neoepitopes.
Study details
Dr. Lopez presented results from dose-escalation and expansion cohorts of the study, which included 142 patients with advanced solid tumors. The patients had colorectal, skin, kidney, lung, urothelial, breast, gynecologic, and head and neck cancers.
Most patients had low or no PD-L1 expression, and nearly 40% had received prior treatment with a checkpoint inhibitor.
Patients received nine doses of RO7198457 at 25-50 mcg during the 12-week induction stage. They then received RO7198457 every eight cycles until disease progression. Patients received atezolizumab at 1,200 mg on day 1 of each 21-day cycle.
Induction of proinflammatory cytokines was observed at each dose tested, and ex vivo T-cell responses were noted in 46 of 63 patients evaluated, or 73%.
T-cell receptors specific to RO7198457 were present posttreatment in a patient with rectal cancer, providing some preliminary evidence suggesting infiltration of RO7198457-stimulated T cells in the tumor, Dr. Lopez said.
There were two clinical responses. A patient with rectal cancer had a complete response, and a patient with triple-negative breast cancer had a partial response.
The combination of RO7198457 with atezolizumab was generally well tolerated, and the maximum tolerated dose was not reached, Dr. Lopez said. Most adverse events were grade 1/2, and immune-mediated adverse events were rare.
Implications and next steps
This study furthers earlier observations from neoantigen vaccine studies by linking dosing of the vaccine to dosing with immune checkpoint inhibitor, rather than giving the vaccine in the period leading up to immune checkpoint inhibitor administration, according to former AACR President Elaine R. Mardis, PhD, of Nationwide Children’s Hospital and The Ohio State University College of Medicine, both in Columbus.
That said, the implications for clinical practice remain unclear, according to Dr. Mardis.
“This combination did elicit an immune response that was highly specific for the neoantigen vaccine, but most patients did not receive a clinical benefit of disease response,” Dr. Mardis said in an interview. “This tells us the combination approach used was, overall, not quite right, and we need to continue to innovate in this area.”
The low clinical response rate in the study was likely caused in part by the fact that patients had very advanced disease and were heavily pretreated, according to Dr. Lopez
Randomized phase 2 studies of RO7198457 are now underway, Dr. Lopez said. One is a study of RO7198457 plus atezolizumab as adjuvant treatment for non–small cell lung cancer (NCT04267237). Another is testing RO7198457 in combination with pembrolizumab as first-line treatment for melanoma (NCT03815058).
The current study was funded by Genentech and BioNTech. Dr. Lopez reported disclosures related to Roche/Genentech, Basilea Pharmaceutica, and Genmab. Dr. Mardis reported disclosures related to Quiagen NV, PACT Pharma, Kiadis Pharma NV, and Interpreta.
SOURCE: Lopez J et al. AACR 2020, Abstract CT301.
FROM AACR 2020
DECT has mixed performance in differentiating gout vs. CPPD
Dual-energy computed tomography (DECT) appears to have limited utility for differentiating between gout and calcium pyrophosphate deposition disease (CPPD), according to a German prospective cohort study. Findings were reported at the annual European Congress of Rheumatology, held online this year because of COVID-19.
“Differentiation of gout and pseudogout, or CPPD, is sometimes difficult,” said presenting investigator Valentin S. Schäfer, MD, associate professor of internal medicine and head of the department of rheumatology and clinical immunology at University Hospital Bonn (Germany).
“Arthrocentesis and subsequent polarization microscopy remains the gold standard,” he noted. “Novel diagnostic approaches, such as DECT, have recently been validated for gout, but limited data [are] available on the use of DECT in patients with CPPD.”
The investigators studied 30 patients: 22 with suspected gout and 8 with suspected CPPD. All underwent arthrocentesis with subsequent polarization microscopy for definitive diagnosis, plus clinical examination, ultrasound examination, conventional radiography, DECT, and assessment of 12 laboratory parameters.
For diagnosis of gout, DECT had a sensitivity and specificity of 59.1% and 100%, respectively, Dr. Schäfer reported, noting that this sensitivity falls considerably short of the 90% previously reported for gout.
Corresponding sensitivity and specificity were 90.9% and 75% for ultrasound, 58.8% and 100% for conventional radiography, and 81.8% and 87.5% for the rheumatologists’ suspected clinical diagnosis.
For diagnosis of CPPD, DECT had sensitivity of 37.5% and specificity of 81.8%. Corresponding values were 87.5% and 91% for ultrasound, 0% and 94.1% for conventional radiography, and 75.0% and 100% for suspected clinical diagnosis.
None of the 12 laboratory parameters studied – uric acid, C-reactive protein, organic phosphate, and leukocytes, among others – significantly differentiated between conditions.
“Both ultrasound and suspected clinical diagnosis had higher sensitivities than DECT for gout and CPPD,” Dr. Schäfer concluded. “Further studies with larger patient cohorts and perhaps modified scan protocols are needed in order to determine the diagnostic utility of DECT in CPPD.”
Findings in context
“Noninvasive, accurate methods for distinguishing between gout and CPPD will improve clinical care,” Sara K. Tedeschi, MD, MPH, predicted in an interview.
“Arthrocentesis is painful in an acutely inflamed joint, can be difficult to perform on small joints, and is underutilized in clinical practice,” she elaborated. And ultrasound is operator dependent and does not quantify crystal volume in and around the joint.
The question addressed by the study is therefore clinically relevant, according to Dr. Tedeschi, a rheumatologist at Brigham and Women’s Hospital and assistant professor of medicine at Harvard Medical School, Boston.
However, among the patients with CPPD, the study did not report specific phenotypes (acute inflammatory arthritis, chronic inflammatory arthritis, and osteoarthritis with calcium pyrophosphate deposits), she noted. “It is difficult to draw conclusions about the sensitivity or specificity of DECT for CPPD without this information, especially among just 8 CPPD patients.”
In addition, among the patients with gout, the proportion having new-onset disease with flare duration less than 6 weeks and the proportion with tophi were unknown, both of which affected DECT sensitivity in the previous study that reported 90% sensitivity. “Based on the 95% confidence interval in the present study, it is possible that with a larger sample size, DECT sensitivity for gout would have been higher,” she pointed out. “We also do not know the DECT software settings, which impact DECT interpretation as positive or negative for the crystal of interest.”
Finally, “it would be relevant to know what joints were aspirated and imaged in each group,” Dr. Tedeschi said. “For example, if the first metatarsophalangeal (MTP) joint was aspirated and imaged for half of the gout patients but for none of the CPPD patients, that may affect the study interpretation.”
The study did not receive any specific funding. Dr. Schäfer disclosed a variety of financial relationships with multiple pharmaceutical companies. Dr. Tedeschi disclosed receiving grant support from the National Institutes of Health to study imaging modalities for CPPD, and being first author on a study comparing the sensitivity of DECT, ultrasound, and x-ray for acute CPP crystal arthritis.
SOURCE: Kravchenko D et al. Ann Rheum Dis. 2020 Jun;79[suppl 1]:196.
Dual-energy computed tomography (DECT) appears to have limited utility for differentiating between gout and calcium pyrophosphate deposition disease (CPPD), according to a German prospective cohort study. Findings were reported at the annual European Congress of Rheumatology, held online this year because of COVID-19.
“Differentiation of gout and pseudogout, or CPPD, is sometimes difficult,” said presenting investigator Valentin S. Schäfer, MD, associate professor of internal medicine and head of the department of rheumatology and clinical immunology at University Hospital Bonn (Germany).
“Arthrocentesis and subsequent polarization microscopy remains the gold standard,” he noted. “Novel diagnostic approaches, such as DECT, have recently been validated for gout, but limited data [are] available on the use of DECT in patients with CPPD.”
The investigators studied 30 patients: 22 with suspected gout and 8 with suspected CPPD. All underwent arthrocentesis with subsequent polarization microscopy for definitive diagnosis, plus clinical examination, ultrasound examination, conventional radiography, DECT, and assessment of 12 laboratory parameters.
For diagnosis of gout, DECT had a sensitivity and specificity of 59.1% and 100%, respectively, Dr. Schäfer reported, noting that this sensitivity falls considerably short of the 90% previously reported for gout.
Corresponding sensitivity and specificity were 90.9% and 75% for ultrasound, 58.8% and 100% for conventional radiography, and 81.8% and 87.5% for the rheumatologists’ suspected clinical diagnosis.
For diagnosis of CPPD, DECT had sensitivity of 37.5% and specificity of 81.8%. Corresponding values were 87.5% and 91% for ultrasound, 0% and 94.1% for conventional radiography, and 75.0% and 100% for suspected clinical diagnosis.
None of the 12 laboratory parameters studied – uric acid, C-reactive protein, organic phosphate, and leukocytes, among others – significantly differentiated between conditions.
“Both ultrasound and suspected clinical diagnosis had higher sensitivities than DECT for gout and CPPD,” Dr. Schäfer concluded. “Further studies with larger patient cohorts and perhaps modified scan protocols are needed in order to determine the diagnostic utility of DECT in CPPD.”
Findings in context
“Noninvasive, accurate methods for distinguishing between gout and CPPD will improve clinical care,” Sara K. Tedeschi, MD, MPH, predicted in an interview.
“Arthrocentesis is painful in an acutely inflamed joint, can be difficult to perform on small joints, and is underutilized in clinical practice,” she elaborated. And ultrasound is operator dependent and does not quantify crystal volume in and around the joint.
The question addressed by the study is therefore clinically relevant, according to Dr. Tedeschi, a rheumatologist at Brigham and Women’s Hospital and assistant professor of medicine at Harvard Medical School, Boston.
However, among the patients with CPPD, the study did not report specific phenotypes (acute inflammatory arthritis, chronic inflammatory arthritis, and osteoarthritis with calcium pyrophosphate deposits), she noted. “It is difficult to draw conclusions about the sensitivity or specificity of DECT for CPPD without this information, especially among just 8 CPPD patients.”
In addition, among the patients with gout, the proportion having new-onset disease with flare duration less than 6 weeks and the proportion with tophi were unknown, both of which affected DECT sensitivity in the previous study that reported 90% sensitivity. “Based on the 95% confidence interval in the present study, it is possible that with a larger sample size, DECT sensitivity for gout would have been higher,” she pointed out. “We also do not know the DECT software settings, which impact DECT interpretation as positive or negative for the crystal of interest.”
Finally, “it would be relevant to know what joints were aspirated and imaged in each group,” Dr. Tedeschi said. “For example, if the first metatarsophalangeal (MTP) joint was aspirated and imaged for half of the gout patients but for none of the CPPD patients, that may affect the study interpretation.”
The study did not receive any specific funding. Dr. Schäfer disclosed a variety of financial relationships with multiple pharmaceutical companies. Dr. Tedeschi disclosed receiving grant support from the National Institutes of Health to study imaging modalities for CPPD, and being first author on a study comparing the sensitivity of DECT, ultrasound, and x-ray for acute CPP crystal arthritis.
SOURCE: Kravchenko D et al. Ann Rheum Dis. 2020 Jun;79[suppl 1]:196.
Dual-energy computed tomography (DECT) appears to have limited utility for differentiating between gout and calcium pyrophosphate deposition disease (CPPD), according to a German prospective cohort study. Findings were reported at the annual European Congress of Rheumatology, held online this year because of COVID-19.
“Differentiation of gout and pseudogout, or CPPD, is sometimes difficult,” said presenting investigator Valentin S. Schäfer, MD, associate professor of internal medicine and head of the department of rheumatology and clinical immunology at University Hospital Bonn (Germany).
“Arthrocentesis and subsequent polarization microscopy remains the gold standard,” he noted. “Novel diagnostic approaches, such as DECT, have recently been validated for gout, but limited data [are] available on the use of DECT in patients with CPPD.”
The investigators studied 30 patients: 22 with suspected gout and 8 with suspected CPPD. All underwent arthrocentesis with subsequent polarization microscopy for definitive diagnosis, plus clinical examination, ultrasound examination, conventional radiography, DECT, and assessment of 12 laboratory parameters.
For diagnosis of gout, DECT had a sensitivity and specificity of 59.1% and 100%, respectively, Dr. Schäfer reported, noting that this sensitivity falls considerably short of the 90% previously reported for gout.
Corresponding sensitivity and specificity were 90.9% and 75% for ultrasound, 58.8% and 100% for conventional radiography, and 81.8% and 87.5% for the rheumatologists’ suspected clinical diagnosis.
For diagnosis of CPPD, DECT had sensitivity of 37.5% and specificity of 81.8%. Corresponding values were 87.5% and 91% for ultrasound, 0% and 94.1% for conventional radiography, and 75.0% and 100% for suspected clinical diagnosis.
None of the 12 laboratory parameters studied – uric acid, C-reactive protein, organic phosphate, and leukocytes, among others – significantly differentiated between conditions.
“Both ultrasound and suspected clinical diagnosis had higher sensitivities than DECT for gout and CPPD,” Dr. Schäfer concluded. “Further studies with larger patient cohorts and perhaps modified scan protocols are needed in order to determine the diagnostic utility of DECT in CPPD.”
Findings in context
“Noninvasive, accurate methods for distinguishing between gout and CPPD will improve clinical care,” Sara K. Tedeschi, MD, MPH, predicted in an interview.
“Arthrocentesis is painful in an acutely inflamed joint, can be difficult to perform on small joints, and is underutilized in clinical practice,” she elaborated. And ultrasound is operator dependent and does not quantify crystal volume in and around the joint.
The question addressed by the study is therefore clinically relevant, according to Dr. Tedeschi, a rheumatologist at Brigham and Women’s Hospital and assistant professor of medicine at Harvard Medical School, Boston.
However, among the patients with CPPD, the study did not report specific phenotypes (acute inflammatory arthritis, chronic inflammatory arthritis, and osteoarthritis with calcium pyrophosphate deposits), she noted. “It is difficult to draw conclusions about the sensitivity or specificity of DECT for CPPD without this information, especially among just 8 CPPD patients.”
In addition, among the patients with gout, the proportion having new-onset disease with flare duration less than 6 weeks and the proportion with tophi were unknown, both of which affected DECT sensitivity in the previous study that reported 90% sensitivity. “Based on the 95% confidence interval in the present study, it is possible that with a larger sample size, DECT sensitivity for gout would have been higher,” she pointed out. “We also do not know the DECT software settings, which impact DECT interpretation as positive or negative for the crystal of interest.”
Finally, “it would be relevant to know what joints were aspirated and imaged in each group,” Dr. Tedeschi said. “For example, if the first metatarsophalangeal (MTP) joint was aspirated and imaged for half of the gout patients but for none of the CPPD patients, that may affect the study interpretation.”
The study did not receive any specific funding. Dr. Schäfer disclosed a variety of financial relationships with multiple pharmaceutical companies. Dr. Tedeschi disclosed receiving grant support from the National Institutes of Health to study imaging modalities for CPPD, and being first author on a study comparing the sensitivity of DECT, ultrasound, and x-ray for acute CPP crystal arthritis.
SOURCE: Kravchenko D et al. Ann Rheum Dis. 2020 Jun;79[suppl 1]:196.
FROM THE EULAR 2020 E-CONGRESS
ACIP approves flu vaccine recommendations for 2020-2021
– Fluzone high-dose quadrivalent, which replaces the trivalent Fluzone high-dose and Fluad quadrivalent (Seqirus), according to the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices.
At a virtual meeting on June 24, the committee voted unanimously to approve the vaccine recommendations for annual influenza immunization of all individuals aged 6 months and older. They also voted to accept some guidance and language changes to the recommendations.
The past flu season was unique in its overlap with the emergence of the COVID-19 coronavirus, which likely contributed to a third peak in reported cases of influenza-like illness at approximately week 14 of last season, said Lisa Grohskopf, MD, of the CDC’s influenza division, who presented data on last year’s activity and the updates for next season.
The CDC estimates that 39,000,000-56,000,000 flu illnesses occurred in the United States from Oct. 1, 2019, to April 4, 2020, said Dr. Grohskopf. Estimates also suggest as many as 740,000 hospitalizations and 62,000 deaths related to the seasonal flu.
Preliminary results of vaccine effectiveness showed 39% overall for the 2019-2020 season, with more substantial protection against influenza B and lower protection against A/H1N1pmd09.
Vaccine safety data from the Vaccine Adverse Event Reporting System and Vaccine Safety Datalink showed no new safety concerns for any flu vaccine types used last year, Dr. Grohskopf noted.
Based on this information, three components (A/H1N1pdm09, A/H3N2, and B/Victoria) have been updated for the 2020-2021 vaccines, said Dr. Grohskopf. The egg-based influenza vaccines will include hemagglutinin derived from an A/Guangdong-Maonan/SWL1536/2019(H1N1)pdm09–like virus, an A/Hong Kong/2671/2019(H3N2)–like virus and a B/Washington/02/2019 (Victoria lineage)–like virus, and (for quadrivalent vaccines) a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
Nonegg vaccines will contain hemagglutinin derived from an A/Hawaii/70/2019 (H1N1)pdm09–like virus, an A/Hong Kong/45/2019 (H3N2)–like virus, a B/Washington/02/2019 (Victoria lineage)–like virus, and a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
New guidance for next year’s flu season includes a change to the language in the contraindications and precautions table to simply read “Contraindications,” with more details in the text explaining package insert contraindications and ACIP recommendations, Dr. Grohskopf said. In addition, updated guidance clarifies that live-attenuated influenza vaccine quadravalents (LAIV4) should not be used in patients with cochlear implants, active cerebrospinal fluid leaks, and anatomical or functional asplenia, based on ACIP’s review of the latest evidence and the availability of alternative vaccines.
ACIP also updated guidance on the use of antivirals and LAIV4. Based on half-lives, language was added indicating that clinicians should assume interference if antivirals are given within certain intervals of LAIV4, Dr. Grohskopf explained. “Newer antivirals peramivir and baloxavir have longer half-lives than oseltamivir and zanamivir, and insufficient data are available on the use of LAIV4 in the setting of antiviral use.”
The ACIP members had no financial conflicts to disclose.
– Fluzone high-dose quadrivalent, which replaces the trivalent Fluzone high-dose and Fluad quadrivalent (Seqirus), according to the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices.
At a virtual meeting on June 24, the committee voted unanimously to approve the vaccine recommendations for annual influenza immunization of all individuals aged 6 months and older. They also voted to accept some guidance and language changes to the recommendations.
The past flu season was unique in its overlap with the emergence of the COVID-19 coronavirus, which likely contributed to a third peak in reported cases of influenza-like illness at approximately week 14 of last season, said Lisa Grohskopf, MD, of the CDC’s influenza division, who presented data on last year’s activity and the updates for next season.
The CDC estimates that 39,000,000-56,000,000 flu illnesses occurred in the United States from Oct. 1, 2019, to April 4, 2020, said Dr. Grohskopf. Estimates also suggest as many as 740,000 hospitalizations and 62,000 deaths related to the seasonal flu.
Preliminary results of vaccine effectiveness showed 39% overall for the 2019-2020 season, with more substantial protection against influenza B and lower protection against A/H1N1pmd09.
Vaccine safety data from the Vaccine Adverse Event Reporting System and Vaccine Safety Datalink showed no new safety concerns for any flu vaccine types used last year, Dr. Grohskopf noted.
Based on this information, three components (A/H1N1pdm09, A/H3N2, and B/Victoria) have been updated for the 2020-2021 vaccines, said Dr. Grohskopf. The egg-based influenza vaccines will include hemagglutinin derived from an A/Guangdong-Maonan/SWL1536/2019(H1N1)pdm09–like virus, an A/Hong Kong/2671/2019(H3N2)–like virus and a B/Washington/02/2019 (Victoria lineage)–like virus, and (for quadrivalent vaccines) a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
Nonegg vaccines will contain hemagglutinin derived from an A/Hawaii/70/2019 (H1N1)pdm09–like virus, an A/Hong Kong/45/2019 (H3N2)–like virus, a B/Washington/02/2019 (Victoria lineage)–like virus, and a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
New guidance for next year’s flu season includes a change to the language in the contraindications and precautions table to simply read “Contraindications,” with more details in the text explaining package insert contraindications and ACIP recommendations, Dr. Grohskopf said. In addition, updated guidance clarifies that live-attenuated influenza vaccine quadravalents (LAIV4) should not be used in patients with cochlear implants, active cerebrospinal fluid leaks, and anatomical or functional asplenia, based on ACIP’s review of the latest evidence and the availability of alternative vaccines.
ACIP also updated guidance on the use of antivirals and LAIV4. Based on half-lives, language was added indicating that clinicians should assume interference if antivirals are given within certain intervals of LAIV4, Dr. Grohskopf explained. “Newer antivirals peramivir and baloxavir have longer half-lives than oseltamivir and zanamivir, and insufficient data are available on the use of LAIV4 in the setting of antiviral use.”
The ACIP members had no financial conflicts to disclose.
– Fluzone high-dose quadrivalent, which replaces the trivalent Fluzone high-dose and Fluad quadrivalent (Seqirus), according to the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices.
At a virtual meeting on June 24, the committee voted unanimously to approve the vaccine recommendations for annual influenza immunization of all individuals aged 6 months and older. They also voted to accept some guidance and language changes to the recommendations.
The past flu season was unique in its overlap with the emergence of the COVID-19 coronavirus, which likely contributed to a third peak in reported cases of influenza-like illness at approximately week 14 of last season, said Lisa Grohskopf, MD, of the CDC’s influenza division, who presented data on last year’s activity and the updates for next season.
The CDC estimates that 39,000,000-56,000,000 flu illnesses occurred in the United States from Oct. 1, 2019, to April 4, 2020, said Dr. Grohskopf. Estimates also suggest as many as 740,000 hospitalizations and 62,000 deaths related to the seasonal flu.
Preliminary results of vaccine effectiveness showed 39% overall for the 2019-2020 season, with more substantial protection against influenza B and lower protection against A/H1N1pmd09.
Vaccine safety data from the Vaccine Adverse Event Reporting System and Vaccine Safety Datalink showed no new safety concerns for any flu vaccine types used last year, Dr. Grohskopf noted.
Based on this information, three components (A/H1N1pdm09, A/H3N2, and B/Victoria) have been updated for the 2020-2021 vaccines, said Dr. Grohskopf. The egg-based influenza vaccines will include hemagglutinin derived from an A/Guangdong-Maonan/SWL1536/2019(H1N1)pdm09–like virus, an A/Hong Kong/2671/2019(H3N2)–like virus and a B/Washington/02/2019 (Victoria lineage)–like virus, and (for quadrivalent vaccines) a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
Nonegg vaccines will contain hemagglutinin derived from an A/Hawaii/70/2019 (H1N1)pdm09–like virus, an A/Hong Kong/45/2019 (H3N2)–like virus, a B/Washington/02/2019 (Victoria lineage)–like virus, and a B/Phuket/3073/2013 (Yamagata lineage)–like virus.
New guidance for next year’s flu season includes a change to the language in the contraindications and precautions table to simply read “Contraindications,” with more details in the text explaining package insert contraindications and ACIP recommendations, Dr. Grohskopf said. In addition, updated guidance clarifies that live-attenuated influenza vaccine quadravalents (LAIV4) should not be used in patients with cochlear implants, active cerebrospinal fluid leaks, and anatomical or functional asplenia, based on ACIP’s review of the latest evidence and the availability of alternative vaccines.
ACIP also updated guidance on the use of antivirals and LAIV4. Based on half-lives, language was added indicating that clinicians should assume interference if antivirals are given within certain intervals of LAIV4, Dr. Grohskopf explained. “Newer antivirals peramivir and baloxavir have longer half-lives than oseltamivir and zanamivir, and insufficient data are available on the use of LAIV4 in the setting of antiviral use.”
The ACIP members had no financial conflicts to disclose.
Diabetes control in U.S. youth has worsened over time
Glycemic control among youth with diabetes is no better today than it was in 2002 and in some subgroups it’s worse, despite increased availability of diabetes technology, newer therapies, and more aggressive recommended blood glucose targets, new research finds.
The sobering data from 6,399 participants in the longitudinal SEARCH for Diabetes in Youth study were presented June 15 at the virtual American Diabetes Association 80th Scientific Sessions by Faisal S. Malik, MD, of the University of Washington, Seattle, and Seattle Children’s Research Institute.
“Our finding that current youth and young adults with diabetes are not demonstrating improved glycemic control, compared to earlier cohorts in the SEARCH study was surprising given how the landscape of diabetes management has changed dramatically over the past decade,” Dr. Malik said in an interview.
Urgent need to improve glycemic control in youth with diabetes
The SEARCH study, funded by the National Institute of Diabetes and Digestive and Kidney Diseases and the Centers for Disease Control and Prevention, is the largest and most diverse study of diabetes in youth in the United States. It has over 27,000 participants seen at five study sites in California, Colorado, Ohio, South Carolina, and Washington state.
Among youth with type 1 diabetes in the study, average hemoglobin A1c rose from 8.6% in 2002-2007 (n = 3,451) to 8.8% in 2008-2014 (n = 2,254), and remained at 8.8% in 2014-2019 (n = 1,651).
Among those with type 2 diabetes, A1c levels fluctuated from 8.8% (n = 379) to 8.4% (n = 327) to 8.5% (n = 469) in the three time periods, respectively.
By contrast, in 2014 the ADA recommended an A1c of less than 7.5% for youth of all ages with type 1 diabetes, down from prior less stringent targets.
In 2018, the ADA advised A1c levels below 7% for youth with type 2 diabetes. In both cases, targets may be adjusted based on individual circumstances.
A particularly striking data point was seen among youth who had type 2 diabetes for 10 years or more: average A1c skyrocketed from 7.9% in 2008-2013 to 10.1% in 2014-2019. The numbers were small, 25 patients in the earlier cohort and 149 patients in the later, yet the difference was still significant (P < .01). And in those with type 1 diabetes for 5-9 years, average A1c rose from 8.7% in 2002-2007 (n = 769) to 9.2% in 2014-2019 (n = 654) (P < .01).
“These results suggest that not all youth with diabetes are directly benefiting from the increased availability of diabetes technology, newer therapies, and the use of more aggressive glycemic targets for youth with diabetes over time,” Dr. Malik said.
“Recognizing that lower A1c levels in adolescence and young adulthood is associated with lower risk and rate of microvascular and macrovascular complications, this study further underscores the urgent need for effective treatment strategies to improve glycemic control in youth and young adults with diabetes,” he added.
Asked to comment, David M. Maahs, MD, said in an interview that the type 1 diabetes data are “very consistent” with those found in the T1D Exchange registry study but that both datasets include patients seen at diabetes centers and therefore may not represent the entire population.
“I don’t think there’s reason to think we’re actually doing any better than these data indicate,” said Dr. Maahs, professor of pediatrics and division chief of pediatric endocrinology at Stanford (Calif.) University.
Other countries improving, U.S. getting worse
Dr. Maahs contrasted the U.S. situation with that of the English/Welsh National Paediatric Diabetes Audit and some European countries that have improved pediatric diabetes control and outcomes using a population-based approach.
“In the United States we have a disjointed irrational health care system that doesn’t invest in diabetes education and in the basic care and monitoring that children with diabetes need to get better glucose control,” he said.
“We’re not having systematic approaches to it as many European countries have. They have gotten better results over this same time period. In the United States we’re getting worse,” Dr. Maahs observed.
And as far as diabetes technology is concerned, Dr. Maahs said, “there’s more to it than just throwing technology at it. People who are using technology are getting better outcomes, but there are a lot of people who don’t get access to it.”
Indeed, Dr. Malik pointed out, “while the recent SEARCH [type 1 diabetes] cohorts had increased insulin pump use, it’s worth noting that more than half of the participants in the most recent cohort were not using diabetes technology.” And even “fewer participants were likely using continuous glucose monitors during our study period.”
Barriers to care, type 1 diabetes is “very labor intensive”
Dr. Malik said that barriers to care include “high cost, alarm fatigue, and encumbrances of wearing a mechanical device [that] continue to present challenges around technology use,” as well as “inequities in the use of these technologies across socioeconomic status, health insurance, and race/ethnicity, which need to be addressed.”
Dr. Maahs did have a recommendation for U.S. primary care physicians who are managing youth with either type of diabetes: a tele-education program called Project ECHO (Extension for Community Healthcare Outcomes), which uses a train-the-trainer model, rather than direct telehealth, to bring tele-education to primary care providers.
Such programs in diabetes have shown some success, he said.
Type 1 diabetes, Dr. Malik noted, “is very labor intensive. Frequent or constant monitoring of glucose and multiple daily doses of basal and bolus insulin are commonly recommended by type 1 diabetes care providers in the United States.”
“This has led to increasingly burdensome management for children and their caregivers, which often results in suboptimal adherence, suboptimal glycemic control, and greater risk of complications.”
Dr. Malik encourages providers “to engage in person-centered collaborative care as recommended by the ADA, which is guided by shared decision-making in treatment regimen selection, facilitation of obtaining needed medical and psychosocial resources, and shared monitoring of agreed-upon regimen and lifestyle.”
Dr. Malik has reported no relevant financial relationships. Dr. Maahs has reported being on advisory boards for Medtronic, Lilly, and Abbott.
A version of this article originally appeared on Medscape.com.
Glycemic control among youth with diabetes is no better today than it was in 2002 and in some subgroups it’s worse, despite increased availability of diabetes technology, newer therapies, and more aggressive recommended blood glucose targets, new research finds.
The sobering data from 6,399 participants in the longitudinal SEARCH for Diabetes in Youth study were presented June 15 at the virtual American Diabetes Association 80th Scientific Sessions by Faisal S. Malik, MD, of the University of Washington, Seattle, and Seattle Children’s Research Institute.
“Our finding that current youth and young adults with diabetes are not demonstrating improved glycemic control, compared to earlier cohorts in the SEARCH study was surprising given how the landscape of diabetes management has changed dramatically over the past decade,” Dr. Malik said in an interview.
Urgent need to improve glycemic control in youth with diabetes
The SEARCH study, funded by the National Institute of Diabetes and Digestive and Kidney Diseases and the Centers for Disease Control and Prevention, is the largest and most diverse study of diabetes in youth in the United States. It has over 27,000 participants seen at five study sites in California, Colorado, Ohio, South Carolina, and Washington state.
Among youth with type 1 diabetes in the study, average hemoglobin A1c rose from 8.6% in 2002-2007 (n = 3,451) to 8.8% in 2008-2014 (n = 2,254), and remained at 8.8% in 2014-2019 (n = 1,651).
Among those with type 2 diabetes, A1c levels fluctuated from 8.8% (n = 379) to 8.4% (n = 327) to 8.5% (n = 469) in the three time periods, respectively.
By contrast, in 2014 the ADA recommended an A1c of less than 7.5% for youth of all ages with type 1 diabetes, down from prior less stringent targets.
In 2018, the ADA advised A1c levels below 7% for youth with type 2 diabetes. In both cases, targets may be adjusted based on individual circumstances.
A particularly striking data point was seen among youth who had type 2 diabetes for 10 years or more: average A1c skyrocketed from 7.9% in 2008-2013 to 10.1% in 2014-2019. The numbers were small, 25 patients in the earlier cohort and 149 patients in the later, yet the difference was still significant (P < .01). And in those with type 1 diabetes for 5-9 years, average A1c rose from 8.7% in 2002-2007 (n = 769) to 9.2% in 2014-2019 (n = 654) (P < .01).
“These results suggest that not all youth with diabetes are directly benefiting from the increased availability of diabetes technology, newer therapies, and the use of more aggressive glycemic targets for youth with diabetes over time,” Dr. Malik said.
“Recognizing that lower A1c levels in adolescence and young adulthood is associated with lower risk and rate of microvascular and macrovascular complications, this study further underscores the urgent need for effective treatment strategies to improve glycemic control in youth and young adults with diabetes,” he added.
Asked to comment, David M. Maahs, MD, said in an interview that the type 1 diabetes data are “very consistent” with those found in the T1D Exchange registry study but that both datasets include patients seen at diabetes centers and therefore may not represent the entire population.
“I don’t think there’s reason to think we’re actually doing any better than these data indicate,” said Dr. Maahs, professor of pediatrics and division chief of pediatric endocrinology at Stanford (Calif.) University.
Other countries improving, U.S. getting worse
Dr. Maahs contrasted the U.S. situation with that of the English/Welsh National Paediatric Diabetes Audit and some European countries that have improved pediatric diabetes control and outcomes using a population-based approach.
“In the United States we have a disjointed irrational health care system that doesn’t invest in diabetes education and in the basic care and monitoring that children with diabetes need to get better glucose control,” he said.
“We’re not having systematic approaches to it as many European countries have. They have gotten better results over this same time period. In the United States we’re getting worse,” Dr. Maahs observed.
And as far as diabetes technology is concerned, Dr. Maahs said, “there’s more to it than just throwing technology at it. People who are using technology are getting better outcomes, but there are a lot of people who don’t get access to it.”
Indeed, Dr. Malik pointed out, “while the recent SEARCH [type 1 diabetes] cohorts had increased insulin pump use, it’s worth noting that more than half of the participants in the most recent cohort were not using diabetes technology.” And even “fewer participants were likely using continuous glucose monitors during our study period.”
Barriers to care, type 1 diabetes is “very labor intensive”
Dr. Malik said that barriers to care include “high cost, alarm fatigue, and encumbrances of wearing a mechanical device [that] continue to present challenges around technology use,” as well as “inequities in the use of these technologies across socioeconomic status, health insurance, and race/ethnicity, which need to be addressed.”
Dr. Maahs did have a recommendation for U.S. primary care physicians who are managing youth with either type of diabetes: a tele-education program called Project ECHO (Extension for Community Healthcare Outcomes), which uses a train-the-trainer model, rather than direct telehealth, to bring tele-education to primary care providers.
Such programs in diabetes have shown some success, he said.
Type 1 diabetes, Dr. Malik noted, “is very labor intensive. Frequent or constant monitoring of glucose and multiple daily doses of basal and bolus insulin are commonly recommended by type 1 diabetes care providers in the United States.”
“This has led to increasingly burdensome management for children and their caregivers, which often results in suboptimal adherence, suboptimal glycemic control, and greater risk of complications.”
Dr. Malik encourages providers “to engage in person-centered collaborative care as recommended by the ADA, which is guided by shared decision-making in treatment regimen selection, facilitation of obtaining needed medical and psychosocial resources, and shared monitoring of agreed-upon regimen and lifestyle.”
Dr. Malik has reported no relevant financial relationships. Dr. Maahs has reported being on advisory boards for Medtronic, Lilly, and Abbott.
A version of this article originally appeared on Medscape.com.
Glycemic control among youth with diabetes is no better today than it was in 2002 and in some subgroups it’s worse, despite increased availability of diabetes technology, newer therapies, and more aggressive recommended blood glucose targets, new research finds.
The sobering data from 6,399 participants in the longitudinal SEARCH for Diabetes in Youth study were presented June 15 at the virtual American Diabetes Association 80th Scientific Sessions by Faisal S. Malik, MD, of the University of Washington, Seattle, and Seattle Children’s Research Institute.
“Our finding that current youth and young adults with diabetes are not demonstrating improved glycemic control, compared to earlier cohorts in the SEARCH study was surprising given how the landscape of diabetes management has changed dramatically over the past decade,” Dr. Malik said in an interview.
Urgent need to improve glycemic control in youth with diabetes
The SEARCH study, funded by the National Institute of Diabetes and Digestive and Kidney Diseases and the Centers for Disease Control and Prevention, is the largest and most diverse study of diabetes in youth in the United States. It has over 27,000 participants seen at five study sites in California, Colorado, Ohio, South Carolina, and Washington state.
Among youth with type 1 diabetes in the study, average hemoglobin A1c rose from 8.6% in 2002-2007 (n = 3,451) to 8.8% in 2008-2014 (n = 2,254), and remained at 8.8% in 2014-2019 (n = 1,651).
Among those with type 2 diabetes, A1c levels fluctuated from 8.8% (n = 379) to 8.4% (n = 327) to 8.5% (n = 469) in the three time periods, respectively.
By contrast, in 2014 the ADA recommended an A1c of less than 7.5% for youth of all ages with type 1 diabetes, down from prior less stringent targets.
In 2018, the ADA advised A1c levels below 7% for youth with type 2 diabetes. In both cases, targets may be adjusted based on individual circumstances.
A particularly striking data point was seen among youth who had type 2 diabetes for 10 years or more: average A1c skyrocketed from 7.9% in 2008-2013 to 10.1% in 2014-2019. The numbers were small, 25 patients in the earlier cohort and 149 patients in the later, yet the difference was still significant (P < .01). And in those with type 1 diabetes for 5-9 years, average A1c rose from 8.7% in 2002-2007 (n = 769) to 9.2% in 2014-2019 (n = 654) (P < .01).
“These results suggest that not all youth with diabetes are directly benefiting from the increased availability of diabetes technology, newer therapies, and the use of more aggressive glycemic targets for youth with diabetes over time,” Dr. Malik said.
“Recognizing that lower A1c levels in adolescence and young adulthood is associated with lower risk and rate of microvascular and macrovascular complications, this study further underscores the urgent need for effective treatment strategies to improve glycemic control in youth and young adults with diabetes,” he added.
Asked to comment, David M. Maahs, MD, said in an interview that the type 1 diabetes data are “very consistent” with those found in the T1D Exchange registry study but that both datasets include patients seen at diabetes centers and therefore may not represent the entire population.
“I don’t think there’s reason to think we’re actually doing any better than these data indicate,” said Dr. Maahs, professor of pediatrics and division chief of pediatric endocrinology at Stanford (Calif.) University.
Other countries improving, U.S. getting worse
Dr. Maahs contrasted the U.S. situation with that of the English/Welsh National Paediatric Diabetes Audit and some European countries that have improved pediatric diabetes control and outcomes using a population-based approach.
“In the United States we have a disjointed irrational health care system that doesn’t invest in diabetes education and in the basic care and monitoring that children with diabetes need to get better glucose control,” he said.
“We’re not having systematic approaches to it as many European countries have. They have gotten better results over this same time period. In the United States we’re getting worse,” Dr. Maahs observed.
And as far as diabetes technology is concerned, Dr. Maahs said, “there’s more to it than just throwing technology at it. People who are using technology are getting better outcomes, but there are a lot of people who don’t get access to it.”
Indeed, Dr. Malik pointed out, “while the recent SEARCH [type 1 diabetes] cohorts had increased insulin pump use, it’s worth noting that more than half of the participants in the most recent cohort were not using diabetes technology.” And even “fewer participants were likely using continuous glucose monitors during our study period.”
Barriers to care, type 1 diabetes is “very labor intensive”
Dr. Malik said that barriers to care include “high cost, alarm fatigue, and encumbrances of wearing a mechanical device [that] continue to present challenges around technology use,” as well as “inequities in the use of these technologies across socioeconomic status, health insurance, and race/ethnicity, which need to be addressed.”
Dr. Maahs did have a recommendation for U.S. primary care physicians who are managing youth with either type of diabetes: a tele-education program called Project ECHO (Extension for Community Healthcare Outcomes), which uses a train-the-trainer model, rather than direct telehealth, to bring tele-education to primary care providers.
Such programs in diabetes have shown some success, he said.
Type 1 diabetes, Dr. Malik noted, “is very labor intensive. Frequent or constant monitoring of glucose and multiple daily doses of basal and bolus insulin are commonly recommended by type 1 diabetes care providers in the United States.”
“This has led to increasingly burdensome management for children and their caregivers, which often results in suboptimal adherence, suboptimal glycemic control, and greater risk of complications.”
Dr. Malik encourages providers “to engage in person-centered collaborative care as recommended by the ADA, which is guided by shared decision-making in treatment regimen selection, facilitation of obtaining needed medical and psychosocial resources, and shared monitoring of agreed-upon regimen and lifestyle.”
Dr. Malik has reported no relevant financial relationships. Dr. Maahs has reported being on advisory boards for Medtronic, Lilly, and Abbott.
A version of this article originally appeared on Medscape.com.
FROM ADA 2020
In scleroderma, GERD questionnaires are essential tools
Every rheumatologist ought to be comfortable in using a validated gastrointestinal symptom scale for evaluation of gastroesophageal reflux disease in patients with scleroderma, Tracy M. Frech, MD, declared at the virtual edition of the American College of Rheumatology’s 2020 State-of-the-Art Clinical Symposium.
About 90% of scleroderma patients will develop GI tract involvement during the course of their connective tissue disease. And while any portion of the GI tract from esophagus to anus can be involved, the most common GI manifestation is gastroesophageal reflux disease (GERD), affecting up to 90% of scleroderma patients, observed Dr. Frech, a rheumatologist and director of the systemic sclerosis clinic at the University of Utah and the George E. Wahlen Department of Veterans Affairs Medical Center, both in Salt Lake City.
“It is essential to ask scleroderma patients questions in order to understand their gastrointestinal tract symptoms. The questionnaires are really critical for us to grade the severity and then properly order tests,” she explained. “The goal is symptom identification, ideally with minimal time burden and at no cost, to guide decisions that move our patients’ care forward.”
Three of the most useful validated instruments for assessment of GERD symptoms in scleroderma patients in routine clinical practice are the GerdQ, the University of California, Los Angeles, Scleroderma Clinical Trial Consortium GI Tract Questionnaire (UCLA GIT) 2.0 reflux scale, and the Patient-Reported Outcomes Measurement Information System (PROMIS) reflux scale.
The GerdQ is a six-item, self-administered questionnaire in which patients specify how many days in the past week they have experienced heartburn, regurgitation, nausea, sleep interference, upper abdominal pain, and need for medication. A free online tool is available for calculating the likelihood of having GERD based upon GerdQ score. A score of 8 or more points out of a possible 18 has the highest sensitivity and specificity for diagnosis of GERD.
The UCLA GIT 2.0 – the most commonly used instrument for GI symptom assessment in scleroderma patients – includes 34 items. It takes 6-8 minutes to complete the whole thing, but patients being assessed for GERD only need answer the eight GERD-specific questions. Six of these eight questions are the same as in the GerdQ. One of the two extra questions asks about difficulty in swallowing solid food, which if answered affirmatively warrants early referral to a gastroenterologist. The other question inquires about any food triggers for the reflux, providing an opportunity for a rheumatologist to educate the patient about the importance of avoiding acidic foods, such as tomatoes, and other food and drink generally considered healthy but which actually exacerbate GERD.
The National Institutes of Health PROMIS scale, the newest of the three instruments, is a 60-item questionnaire; however, only 20 questions relate to reflux and dysphagia and are thus germane to a focused GERD assessment in scleroderma.
When a clinical diagnosis of GERD is made in a scleroderma patient based upon symptoms elicited by questionnaire, guidelines recommend a trial of empiric proton pump inhibitor therapy and behavioral interventions, such as raising the head of the bed, in order to confirm the diagnosis. If the patient reports feeling better after these basic interventions, the diagnosis is confirmed. If not, it’s time to make a referral to a gastroenterologist for specialized care, Dr. Frech said.
Dr. Frech was a coinvestigator in an international, prospective, longitudinal study of patient-reported outcomes measures in 116 patients with scleroderma and GERD. All study participants had to complete the UCLA GIT 2.0, the PROMIS reflux scale, and a third patient-reported GERD measure both before and after the therapeutic intervention. The UCLA GIT 2.0 and PROMIS instruments demonstrated similarly robust sensitivity for identifying changes in GERD symptoms after therapeutic intervention.
“It doesn’t really matter what questionnaire we’re using,” according to the rheumatologist. “But I will point out that there is significant overlap in symptoms among GERD, gastroparesis, functional dyspepsia, and eosinophilic esophagitis, all of which cause symptoms of heartburn and regurgitation. So we don’t want to ask these questions just once, we want to make an intervention and then reask the questions to ensure that we’re continuously moving forward with the gastrointestinal tract management plan.”
Dr. Frech reported having no financial conflicts regarding her presentation.
Every rheumatologist ought to be comfortable in using a validated gastrointestinal symptom scale for evaluation of gastroesophageal reflux disease in patients with scleroderma, Tracy M. Frech, MD, declared at the virtual edition of the American College of Rheumatology’s 2020 State-of-the-Art Clinical Symposium.
About 90% of scleroderma patients will develop GI tract involvement during the course of their connective tissue disease. And while any portion of the GI tract from esophagus to anus can be involved, the most common GI manifestation is gastroesophageal reflux disease (GERD), affecting up to 90% of scleroderma patients, observed Dr. Frech, a rheumatologist and director of the systemic sclerosis clinic at the University of Utah and the George E. Wahlen Department of Veterans Affairs Medical Center, both in Salt Lake City.
“It is essential to ask scleroderma patients questions in order to understand their gastrointestinal tract symptoms. The questionnaires are really critical for us to grade the severity and then properly order tests,” she explained. “The goal is symptom identification, ideally with minimal time burden and at no cost, to guide decisions that move our patients’ care forward.”
Three of the most useful validated instruments for assessment of GERD symptoms in scleroderma patients in routine clinical practice are the GerdQ, the University of California, Los Angeles, Scleroderma Clinical Trial Consortium GI Tract Questionnaire (UCLA GIT) 2.0 reflux scale, and the Patient-Reported Outcomes Measurement Information System (PROMIS) reflux scale.
The GerdQ is a six-item, self-administered questionnaire in which patients specify how many days in the past week they have experienced heartburn, regurgitation, nausea, sleep interference, upper abdominal pain, and need for medication. A free online tool is available for calculating the likelihood of having GERD based upon GerdQ score. A score of 8 or more points out of a possible 18 has the highest sensitivity and specificity for diagnosis of GERD.
The UCLA GIT 2.0 – the most commonly used instrument for GI symptom assessment in scleroderma patients – includes 34 items. It takes 6-8 minutes to complete the whole thing, but patients being assessed for GERD only need answer the eight GERD-specific questions. Six of these eight questions are the same as in the GerdQ. One of the two extra questions asks about difficulty in swallowing solid food, which if answered affirmatively warrants early referral to a gastroenterologist. The other question inquires about any food triggers for the reflux, providing an opportunity for a rheumatologist to educate the patient about the importance of avoiding acidic foods, such as tomatoes, and other food and drink generally considered healthy but which actually exacerbate GERD.
The National Institutes of Health PROMIS scale, the newest of the three instruments, is a 60-item questionnaire; however, only 20 questions relate to reflux and dysphagia and are thus germane to a focused GERD assessment in scleroderma.
When a clinical diagnosis of GERD is made in a scleroderma patient based upon symptoms elicited by questionnaire, guidelines recommend a trial of empiric proton pump inhibitor therapy and behavioral interventions, such as raising the head of the bed, in order to confirm the diagnosis. If the patient reports feeling better after these basic interventions, the diagnosis is confirmed. If not, it’s time to make a referral to a gastroenterologist for specialized care, Dr. Frech said.
Dr. Frech was a coinvestigator in an international, prospective, longitudinal study of patient-reported outcomes measures in 116 patients with scleroderma and GERD. All study participants had to complete the UCLA GIT 2.0, the PROMIS reflux scale, and a third patient-reported GERD measure both before and after the therapeutic intervention. The UCLA GIT 2.0 and PROMIS instruments demonstrated similarly robust sensitivity for identifying changes in GERD symptoms after therapeutic intervention.
“It doesn’t really matter what questionnaire we’re using,” according to the rheumatologist. “But I will point out that there is significant overlap in symptoms among GERD, gastroparesis, functional dyspepsia, and eosinophilic esophagitis, all of which cause symptoms of heartburn and regurgitation. So we don’t want to ask these questions just once, we want to make an intervention and then reask the questions to ensure that we’re continuously moving forward with the gastrointestinal tract management plan.”
Dr. Frech reported having no financial conflicts regarding her presentation.
Every rheumatologist ought to be comfortable in using a validated gastrointestinal symptom scale for evaluation of gastroesophageal reflux disease in patients with scleroderma, Tracy M. Frech, MD, declared at the virtual edition of the American College of Rheumatology’s 2020 State-of-the-Art Clinical Symposium.
About 90% of scleroderma patients will develop GI tract involvement during the course of their connective tissue disease. And while any portion of the GI tract from esophagus to anus can be involved, the most common GI manifestation is gastroesophageal reflux disease (GERD), affecting up to 90% of scleroderma patients, observed Dr. Frech, a rheumatologist and director of the systemic sclerosis clinic at the University of Utah and the George E. Wahlen Department of Veterans Affairs Medical Center, both in Salt Lake City.
“It is essential to ask scleroderma patients questions in order to understand their gastrointestinal tract symptoms. The questionnaires are really critical for us to grade the severity and then properly order tests,” she explained. “The goal is symptom identification, ideally with minimal time burden and at no cost, to guide decisions that move our patients’ care forward.”
Three of the most useful validated instruments for assessment of GERD symptoms in scleroderma patients in routine clinical practice are the GerdQ, the University of California, Los Angeles, Scleroderma Clinical Trial Consortium GI Tract Questionnaire (UCLA GIT) 2.0 reflux scale, and the Patient-Reported Outcomes Measurement Information System (PROMIS) reflux scale.
The GerdQ is a six-item, self-administered questionnaire in which patients specify how many days in the past week they have experienced heartburn, regurgitation, nausea, sleep interference, upper abdominal pain, and need for medication. A free online tool is available for calculating the likelihood of having GERD based upon GerdQ score. A score of 8 or more points out of a possible 18 has the highest sensitivity and specificity for diagnosis of GERD.
The UCLA GIT 2.0 – the most commonly used instrument for GI symptom assessment in scleroderma patients – includes 34 items. It takes 6-8 minutes to complete the whole thing, but patients being assessed for GERD only need answer the eight GERD-specific questions. Six of these eight questions are the same as in the GerdQ. One of the two extra questions asks about difficulty in swallowing solid food, which if answered affirmatively warrants early referral to a gastroenterologist. The other question inquires about any food triggers for the reflux, providing an opportunity for a rheumatologist to educate the patient about the importance of avoiding acidic foods, such as tomatoes, and other food and drink generally considered healthy but which actually exacerbate GERD.
The National Institutes of Health PROMIS scale, the newest of the three instruments, is a 60-item questionnaire; however, only 20 questions relate to reflux and dysphagia and are thus germane to a focused GERD assessment in scleroderma.
When a clinical diagnosis of GERD is made in a scleroderma patient based upon symptoms elicited by questionnaire, guidelines recommend a trial of empiric proton pump inhibitor therapy and behavioral interventions, such as raising the head of the bed, in order to confirm the diagnosis. If the patient reports feeling better after these basic interventions, the diagnosis is confirmed. If not, it’s time to make a referral to a gastroenterologist for specialized care, Dr. Frech said.
Dr. Frech was a coinvestigator in an international, prospective, longitudinal study of patient-reported outcomes measures in 116 patients with scleroderma and GERD. All study participants had to complete the UCLA GIT 2.0, the PROMIS reflux scale, and a third patient-reported GERD measure both before and after the therapeutic intervention. The UCLA GIT 2.0 and PROMIS instruments demonstrated similarly robust sensitivity for identifying changes in GERD symptoms after therapeutic intervention.
“It doesn’t really matter what questionnaire we’re using,” according to the rheumatologist. “But I will point out that there is significant overlap in symptoms among GERD, gastroparesis, functional dyspepsia, and eosinophilic esophagitis, all of which cause symptoms of heartburn and regurgitation. So we don’t want to ask these questions just once, we want to make an intervention and then reask the questions to ensure that we’re continuously moving forward with the gastrointestinal tract management plan.”
Dr. Frech reported having no financial conflicts regarding her presentation.
FROM SOTA 2020
Azacitidine plus enasidenib improves response, but not survival, in mIDH2 AML
Azacitidine plus enasidenib improved complete and overall responses in newly diagnosed acute myelogenous leukemia with isocitrate dehydrogenase 2 gene mutations, compared with azacitidine alone, but it did not improve overall survival in an open-label, phase 2 trial reported at the virtual annual congress of the European Hematology Association.
“Given the very high cost of” enasidenib, and the lack of survival benefit, Gunnar Juliusson, MD, PhD, of Lund University, Sweden, who moderated the study presentation, wondered if it might make more sense to hold enasidenib in reserve until after progression on azacitidine.
“The challenge is going to be exactly” that, “trying to figure out [if] you use both things together” or in sequence. “You can look at it in both ways,” said lead investigator Courtney DiNardo, MD, associate professor in the department of leukemia at the University of Texas MD Anderson Cancer Center, Houston.
“We do know” that with enasidenib monotherapy, there’s “a decrement in the rates of remission and in the duration of response” and overall survival in the salvage setting, so there’s “a clear rationale to give it earlier rather than later,” but “I think this study in some ways provides a few more questions than it really answers,” she said at the meeting.
About 15% of AML patients have leukemogenic isocitrate dehydrogenase 2 (IDH2) mutations; enasidenib, an oral small molecule, inhibits the mutant enzyme. The older AML patients are, the more likely they are to have an IDH2 mutation, so the work “is relevant to our older chemotherapy ineligible population,” Dr. DiNardo said.
The trial was prompted by preclinical indications of synergy with azacitidine; alone, each agent has an overall response rate of about 30% in newly diagnosed AML, and a complete remission (CR) rate of about 20%, she explained.
Her team randomized 68 adults with newly diagnosed AML and an IDH2 mutation to enasidenib 100 mg daily on a 28-day cycle with subcutaneous azacitidine 75 mg/m2 for 7 days during the cycle, and 33 others to just the azacitidine alone.
Their subjects were ineligible for intensive chemotherapy and had intermediate to poor risk cytogenetics. The median age was 75 years, and Eastern Cooperative Oncology Group performance scores were 2 or less.
The overall response rate was 71% with the combination and 42% in the azacitidine alone arm (P = .0064). Fifty-three percent of combination patients, but 12% of azacitidine alone subjects, had complete remissions (P = .0001). The median duration of response with combination therapy was 24.1 months, versus 12.1 months.
Enasidenib plus azacitidine subjects also had greater drops in mutant IDH2 variant allele frequency (median 83.4% versus 17.7%, P < .01) and levels of the downstream oncometabolite 2-hydroxyglutarate (97.8% versus 54.3%; P < .01).
However, median OS was 22 months in both arms (HR 0.99, 95% CI 0.52, 1.87, P = .97). Although median event-free survival favored the combination – 17.2 months versus 10.8 – the results were not statistically significant (HR 0.59, 95% CI 0.30, 1.17, P = .13).
A possible reason for the lack of survival benefit, Dr. DiNardo said, was that seven azacitidine-alone patients (21%) went on to enasidenib after leaving the study, most commonly for disease progression, which occurred in 31% of combination patients versus 52% in the azacitidine-alone arm.
Combination subjects had a median of 10 treatment cycles, vs. 7 in the azacitidine-alone group. Grade 3-4 adverse events included thrombocytopenia (37% combination, 19% azacitidine-alone), neutropenia (35% vs. 22%), anemia (19% vs. 22%), and febrile neutropenia (15% vs. 16%). Grade 3-4 infections were more common with azacitidine monotherapy (31% vs. 18%).
Twelve enasidenib/azacitidine subjects (18%) developed isocitrate dehydrogenase differentiation syndrome, a complication that carries a black box warning in enasidenib’s label.
The work was funded by enasidenib marketer Celgene. Dr. DiNardo is an adviser to, and receives research funding from, the company. Dr. Juliusson’s disclosures, if any, were not reported.
SOURCE: DiNardo CD et al. EHA Congress, abstract S139.
Azacitidine plus enasidenib improved complete and overall responses in newly diagnosed acute myelogenous leukemia with isocitrate dehydrogenase 2 gene mutations, compared with azacitidine alone, but it did not improve overall survival in an open-label, phase 2 trial reported at the virtual annual congress of the European Hematology Association.
“Given the very high cost of” enasidenib, and the lack of survival benefit, Gunnar Juliusson, MD, PhD, of Lund University, Sweden, who moderated the study presentation, wondered if it might make more sense to hold enasidenib in reserve until after progression on azacitidine.
“The challenge is going to be exactly” that, “trying to figure out [if] you use both things together” or in sequence. “You can look at it in both ways,” said lead investigator Courtney DiNardo, MD, associate professor in the department of leukemia at the University of Texas MD Anderson Cancer Center, Houston.
“We do know” that with enasidenib monotherapy, there’s “a decrement in the rates of remission and in the duration of response” and overall survival in the salvage setting, so there’s “a clear rationale to give it earlier rather than later,” but “I think this study in some ways provides a few more questions than it really answers,” she said at the meeting.
About 15% of AML patients have leukemogenic isocitrate dehydrogenase 2 (IDH2) mutations; enasidenib, an oral small molecule, inhibits the mutant enzyme. The older AML patients are, the more likely they are to have an IDH2 mutation, so the work “is relevant to our older chemotherapy ineligible population,” Dr. DiNardo said.
The trial was prompted by preclinical indications of synergy with azacitidine; alone, each agent has an overall response rate of about 30% in newly diagnosed AML, and a complete remission (CR) rate of about 20%, she explained.
Her team randomized 68 adults with newly diagnosed AML and an IDH2 mutation to enasidenib 100 mg daily on a 28-day cycle with subcutaneous azacitidine 75 mg/m2 for 7 days during the cycle, and 33 others to just the azacitidine alone.
Their subjects were ineligible for intensive chemotherapy and had intermediate to poor risk cytogenetics. The median age was 75 years, and Eastern Cooperative Oncology Group performance scores were 2 or less.
The overall response rate was 71% with the combination and 42% in the azacitidine alone arm (P = .0064). Fifty-three percent of combination patients, but 12% of azacitidine alone subjects, had complete remissions (P = .0001). The median duration of response with combination therapy was 24.1 months, versus 12.1 months.
Enasidenib plus azacitidine subjects also had greater drops in mutant IDH2 variant allele frequency (median 83.4% versus 17.7%, P < .01) and levels of the downstream oncometabolite 2-hydroxyglutarate (97.8% versus 54.3%; P < .01).
However, median OS was 22 months in both arms (HR 0.99, 95% CI 0.52, 1.87, P = .97). Although median event-free survival favored the combination – 17.2 months versus 10.8 – the results were not statistically significant (HR 0.59, 95% CI 0.30, 1.17, P = .13).
A possible reason for the lack of survival benefit, Dr. DiNardo said, was that seven azacitidine-alone patients (21%) went on to enasidenib after leaving the study, most commonly for disease progression, which occurred in 31% of combination patients versus 52% in the azacitidine-alone arm.
Combination subjects had a median of 10 treatment cycles, vs. 7 in the azacitidine-alone group. Grade 3-4 adverse events included thrombocytopenia (37% combination, 19% azacitidine-alone), neutropenia (35% vs. 22%), anemia (19% vs. 22%), and febrile neutropenia (15% vs. 16%). Grade 3-4 infections were more common with azacitidine monotherapy (31% vs. 18%).
Twelve enasidenib/azacitidine subjects (18%) developed isocitrate dehydrogenase differentiation syndrome, a complication that carries a black box warning in enasidenib’s label.
The work was funded by enasidenib marketer Celgene. Dr. DiNardo is an adviser to, and receives research funding from, the company. Dr. Juliusson’s disclosures, if any, were not reported.
SOURCE: DiNardo CD et al. EHA Congress, abstract S139.
Azacitidine plus enasidenib improved complete and overall responses in newly diagnosed acute myelogenous leukemia with isocitrate dehydrogenase 2 gene mutations, compared with azacitidine alone, but it did not improve overall survival in an open-label, phase 2 trial reported at the virtual annual congress of the European Hematology Association.
“Given the very high cost of” enasidenib, and the lack of survival benefit, Gunnar Juliusson, MD, PhD, of Lund University, Sweden, who moderated the study presentation, wondered if it might make more sense to hold enasidenib in reserve until after progression on azacitidine.
“The challenge is going to be exactly” that, “trying to figure out [if] you use both things together” or in sequence. “You can look at it in both ways,” said lead investigator Courtney DiNardo, MD, associate professor in the department of leukemia at the University of Texas MD Anderson Cancer Center, Houston.
“We do know” that with enasidenib monotherapy, there’s “a decrement in the rates of remission and in the duration of response” and overall survival in the salvage setting, so there’s “a clear rationale to give it earlier rather than later,” but “I think this study in some ways provides a few more questions than it really answers,” she said at the meeting.
About 15% of AML patients have leukemogenic isocitrate dehydrogenase 2 (IDH2) mutations; enasidenib, an oral small molecule, inhibits the mutant enzyme. The older AML patients are, the more likely they are to have an IDH2 mutation, so the work “is relevant to our older chemotherapy ineligible population,” Dr. DiNardo said.
The trial was prompted by preclinical indications of synergy with azacitidine; alone, each agent has an overall response rate of about 30% in newly diagnosed AML, and a complete remission (CR) rate of about 20%, she explained.
Her team randomized 68 adults with newly diagnosed AML and an IDH2 mutation to enasidenib 100 mg daily on a 28-day cycle with subcutaneous azacitidine 75 mg/m2 for 7 days during the cycle, and 33 others to just the azacitidine alone.
Their subjects were ineligible for intensive chemotherapy and had intermediate to poor risk cytogenetics. The median age was 75 years, and Eastern Cooperative Oncology Group performance scores were 2 or less.
The overall response rate was 71% with the combination and 42% in the azacitidine alone arm (P = .0064). Fifty-three percent of combination patients, but 12% of azacitidine alone subjects, had complete remissions (P = .0001). The median duration of response with combination therapy was 24.1 months, versus 12.1 months.
Enasidenib plus azacitidine subjects also had greater drops in mutant IDH2 variant allele frequency (median 83.4% versus 17.7%, P < .01) and levels of the downstream oncometabolite 2-hydroxyglutarate (97.8% versus 54.3%; P < .01).
However, median OS was 22 months in both arms (HR 0.99, 95% CI 0.52, 1.87, P = .97). Although median event-free survival favored the combination – 17.2 months versus 10.8 – the results were not statistically significant (HR 0.59, 95% CI 0.30, 1.17, P = .13).
A possible reason for the lack of survival benefit, Dr. DiNardo said, was that seven azacitidine-alone patients (21%) went on to enasidenib after leaving the study, most commonly for disease progression, which occurred in 31% of combination patients versus 52% in the azacitidine-alone arm.
Combination subjects had a median of 10 treatment cycles, vs. 7 in the azacitidine-alone group. Grade 3-4 adverse events included thrombocytopenia (37% combination, 19% azacitidine-alone), neutropenia (35% vs. 22%), anemia (19% vs. 22%), and febrile neutropenia (15% vs. 16%). Grade 3-4 infections were more common with azacitidine monotherapy (31% vs. 18%).
Twelve enasidenib/azacitidine subjects (18%) developed isocitrate dehydrogenase differentiation syndrome, a complication that carries a black box warning in enasidenib’s label.
The work was funded by enasidenib marketer Celgene. Dr. DiNardo is an adviser to, and receives research funding from, the company. Dr. Juliusson’s disclosures, if any, were not reported.
SOURCE: DiNardo CD et al. EHA Congress, abstract S139.
FROM EHA CONGRESS
Ringing the alarm about black youth suicide
A “growing and disturbing” increase in suicidal behavior among black youth has quietly been underway in the United States during the past several decades, even while rates in white and Latino youth have declined, Michael A. Lindsey, PhD, MSW, MPH, declared at the virtual annual meeting of the American Association of Suicidology.
Until recently this trend remained below the radar of public awareness. That’s changing. Dr. Lindsey was coauthor of a December 2019 report to Congress prepared in collaboration with the Congressional Black Caucus entitled, “Ring the Alarm: The Crisis of Black Youth Suicide In America.” Release of the report was accompanied by submission of an omnibus bill aimed at addressing the issue comprehensively, including what Dr. Lindsey considers to be the single most important policy imperative: providing federal resources to support more and better school mental health services proportionate to student needs.
“Black youth, relative to white youth, do not receive treatment for depression, which may be a precursor issue. They’re often disconnected from mental health therapy. This is perhaps a reason why we’re seeing this uptick in suicide expression among black youth,” according to Dr. Lindsey, executive director of the McSilver Institute for Poverty Policy and Research and professor of poverty studies at New York University.
Investigators at Ohio State University analyzed youth suicide data for the years 2001-2015 obtained from the Centers for Disease Control and Prevention. They determined that black children aged 5-12 years had an 82% higher incidence of completed suicide than white children (JAMA Pediatr. 2018 Jul 1;172[7]:697-9).
This report was followed by a study of trends in suicidal behaviors among U.S. high school students during 1991-2017. The study, led by Dr. Lindsey, used data from the Youth Risk Behavior Survey covering the years 1991-2017 to document an overall 19% prevalence of thoughts about suicide, while 15% of high school students had a suicide plan. During the study years there was a 73% increase in suicide attempts among black adolescents, while rates in white and Latino teens fell by 7.5% and 11.4%, respectively (Pediatrics. 2019 Nov;144[5]:e20191187).
Dr. Lindsey cited multiple reasons for undertreatment of depression in black youth. The lack of adequate mental health services in many schools figures prominently. As a result of this situation, mental health problems in black youth are often misinterpreted as conduct problems, leading to well-documented overuse of school suspensions and expulsions.
“We tend to oversuspend and expel black kids from school for problems that are treatable. This becomes a major, major issue in the pathway from schools to prisons,” he said.
Another factor in underutilization of mental health services by black youth is the stigma involved. Many black families see mental health therapy as irrelevant. Dr. Lindsey has received grant support from the National Institute of Mental Health for development of engagement interventions that focus on stigma reduction and enhancing family support for mental health therapy in black youth. He has found that, once those barriers are lowered, therapies seem to be as effective in black youth as in other populations, despite the cultural differences.
Yet another potential explanation for the racial disparity in pediatric suicide might be that suicide may, in some cases, be more of an impulsive behavior in black youth. Dr. Lindsey presented data from a soon-to-be-published analysis of Youth Risk Behavior Survey data on nearly 5,000 adolescents with suicidal thoughts, plans, and/or attempts within the previous 12 months. About 23% had suicidal thoughts only, 37% had suicidal thoughts and a plan, another 37% had thoughts, plans, and suicide attempts, and 3% had attempts without thoughts or a plan.
Black youth were 3.7 times more likely than white youth to have attempted suicide in the absence of background suicidal thoughts and 3.3 times more likely to have attempted suicide without having suicidal thoughts and plans.
He and his coinvestigators identified a similar pattern of suicide as an impulsive behavior in youths of all races with a history of sexual assault. They were 4.2 times more likely to have attempted suicide without prior suicidal thoughts than individuals without such a history and 3.9 times more likely to have attempted suicide without thinking about it or having a plan.
“This has implications for screening and prevention; warning signs may not be present,” he said.
Dr. Lindsey reported having no financial conflicts regarding his presentation.
A “growing and disturbing” increase in suicidal behavior among black youth has quietly been underway in the United States during the past several decades, even while rates in white and Latino youth have declined, Michael A. Lindsey, PhD, MSW, MPH, declared at the virtual annual meeting of the American Association of Suicidology.
Until recently this trend remained below the radar of public awareness. That’s changing. Dr. Lindsey was coauthor of a December 2019 report to Congress prepared in collaboration with the Congressional Black Caucus entitled, “Ring the Alarm: The Crisis of Black Youth Suicide In America.” Release of the report was accompanied by submission of an omnibus bill aimed at addressing the issue comprehensively, including what Dr. Lindsey considers to be the single most important policy imperative: providing federal resources to support more and better school mental health services proportionate to student needs.
“Black youth, relative to white youth, do not receive treatment for depression, which may be a precursor issue. They’re often disconnected from mental health therapy. This is perhaps a reason why we’re seeing this uptick in suicide expression among black youth,” according to Dr. Lindsey, executive director of the McSilver Institute for Poverty Policy and Research and professor of poverty studies at New York University.
Investigators at Ohio State University analyzed youth suicide data for the years 2001-2015 obtained from the Centers for Disease Control and Prevention. They determined that black children aged 5-12 years had an 82% higher incidence of completed suicide than white children (JAMA Pediatr. 2018 Jul 1;172[7]:697-9).
This report was followed by a study of trends in suicidal behaviors among U.S. high school students during 1991-2017. The study, led by Dr. Lindsey, used data from the Youth Risk Behavior Survey covering the years 1991-2017 to document an overall 19% prevalence of thoughts about suicide, while 15% of high school students had a suicide plan. During the study years there was a 73% increase in suicide attempts among black adolescents, while rates in white and Latino teens fell by 7.5% and 11.4%, respectively (Pediatrics. 2019 Nov;144[5]:e20191187).
Dr. Lindsey cited multiple reasons for undertreatment of depression in black youth. The lack of adequate mental health services in many schools figures prominently. As a result of this situation, mental health problems in black youth are often misinterpreted as conduct problems, leading to well-documented overuse of school suspensions and expulsions.
“We tend to oversuspend and expel black kids from school for problems that are treatable. This becomes a major, major issue in the pathway from schools to prisons,” he said.
Another factor in underutilization of mental health services by black youth is the stigma involved. Many black families see mental health therapy as irrelevant. Dr. Lindsey has received grant support from the National Institute of Mental Health for development of engagement interventions that focus on stigma reduction and enhancing family support for mental health therapy in black youth. He has found that, once those barriers are lowered, therapies seem to be as effective in black youth as in other populations, despite the cultural differences.
Yet another potential explanation for the racial disparity in pediatric suicide might be that suicide may, in some cases, be more of an impulsive behavior in black youth. Dr. Lindsey presented data from a soon-to-be-published analysis of Youth Risk Behavior Survey data on nearly 5,000 adolescents with suicidal thoughts, plans, and/or attempts within the previous 12 months. About 23% had suicidal thoughts only, 37% had suicidal thoughts and a plan, another 37% had thoughts, plans, and suicide attempts, and 3% had attempts without thoughts or a plan.
Black youth were 3.7 times more likely than white youth to have attempted suicide in the absence of background suicidal thoughts and 3.3 times more likely to have attempted suicide without having suicidal thoughts and plans.
He and his coinvestigators identified a similar pattern of suicide as an impulsive behavior in youths of all races with a history of sexual assault. They were 4.2 times more likely to have attempted suicide without prior suicidal thoughts than individuals without such a history and 3.9 times more likely to have attempted suicide without thinking about it or having a plan.
“This has implications for screening and prevention; warning signs may not be present,” he said.
Dr. Lindsey reported having no financial conflicts regarding his presentation.
A “growing and disturbing” increase in suicidal behavior among black youth has quietly been underway in the United States during the past several decades, even while rates in white and Latino youth have declined, Michael A. Lindsey, PhD, MSW, MPH, declared at the virtual annual meeting of the American Association of Suicidology.
Until recently this trend remained below the radar of public awareness. That’s changing. Dr. Lindsey was coauthor of a December 2019 report to Congress prepared in collaboration with the Congressional Black Caucus entitled, “Ring the Alarm: The Crisis of Black Youth Suicide In America.” Release of the report was accompanied by submission of an omnibus bill aimed at addressing the issue comprehensively, including what Dr. Lindsey considers to be the single most important policy imperative: providing federal resources to support more and better school mental health services proportionate to student needs.
“Black youth, relative to white youth, do not receive treatment for depression, which may be a precursor issue. They’re often disconnected from mental health therapy. This is perhaps a reason why we’re seeing this uptick in suicide expression among black youth,” according to Dr. Lindsey, executive director of the McSilver Institute for Poverty Policy and Research and professor of poverty studies at New York University.
Investigators at Ohio State University analyzed youth suicide data for the years 2001-2015 obtained from the Centers for Disease Control and Prevention. They determined that black children aged 5-12 years had an 82% higher incidence of completed suicide than white children (JAMA Pediatr. 2018 Jul 1;172[7]:697-9).
This report was followed by a study of trends in suicidal behaviors among U.S. high school students during 1991-2017. The study, led by Dr. Lindsey, used data from the Youth Risk Behavior Survey covering the years 1991-2017 to document an overall 19% prevalence of thoughts about suicide, while 15% of high school students had a suicide plan. During the study years there was a 73% increase in suicide attempts among black adolescents, while rates in white and Latino teens fell by 7.5% and 11.4%, respectively (Pediatrics. 2019 Nov;144[5]:e20191187).
Dr. Lindsey cited multiple reasons for undertreatment of depression in black youth. The lack of adequate mental health services in many schools figures prominently. As a result of this situation, mental health problems in black youth are often misinterpreted as conduct problems, leading to well-documented overuse of school suspensions and expulsions.
“We tend to oversuspend and expel black kids from school for problems that are treatable. This becomes a major, major issue in the pathway from schools to prisons,” he said.
Another factor in underutilization of mental health services by black youth is the stigma involved. Many black families see mental health therapy as irrelevant. Dr. Lindsey has received grant support from the National Institute of Mental Health for development of engagement interventions that focus on stigma reduction and enhancing family support for mental health therapy in black youth. He has found that, once those barriers are lowered, therapies seem to be as effective in black youth as in other populations, despite the cultural differences.
Yet another potential explanation for the racial disparity in pediatric suicide might be that suicide may, in some cases, be more of an impulsive behavior in black youth. Dr. Lindsey presented data from a soon-to-be-published analysis of Youth Risk Behavior Survey data on nearly 5,000 adolescents with suicidal thoughts, plans, and/or attempts within the previous 12 months. About 23% had suicidal thoughts only, 37% had suicidal thoughts and a plan, another 37% had thoughts, plans, and suicide attempts, and 3% had attempts without thoughts or a plan.
Black youth were 3.7 times more likely than white youth to have attempted suicide in the absence of background suicidal thoughts and 3.3 times more likely to have attempted suicide without having suicidal thoughts and plans.
He and his coinvestigators identified a similar pattern of suicide as an impulsive behavior in youths of all races with a history of sexual assault. They were 4.2 times more likely to have attempted suicide without prior suicidal thoughts than individuals without such a history and 3.9 times more likely to have attempted suicide without thinking about it or having a plan.
“This has implications for screening and prevention; warning signs may not be present,” he said.
Dr. Lindsey reported having no financial conflicts regarding his presentation.
FROM AAS 2020
Consistent effects for galcanezumab in cluster headache
new research suggests. A post hoc analysis of patients from the phase 3 CGAL study who also entered the open-label CGAR extension study was conducted. Results showed that the majority of participants whose scores on the Patient Global Impression of Improvement (PGI-I) showed improvement 1 month after the initial dose of galcanezumab in the CGAL study also showed improvement after treatment for subsequent cluster bouts during the CGAR study.
“There was good agreement between PGI-I between the two [cluster headache] periods,” noted the investigators, led by Brian Plato, DO, a neurologist at Norton Neuroscience Institute in Louisville, Ky.
The findings were presented at the virtual annual meeting of the American Headache Society.
Two cluster periods
Galcanezumab was approved by the Food and Drug Administration in 2019 for the treatment of episodic cluster headache in adults.
In cluster headache, attacks of recurrent, unilateral headaches with cranial autonomic symptoms last for weeks or months and are followed by periods of remission. Most studies of therapies for cluster headache examine only one cluster period. Few data about the consistency of treatment response throughout consecutive cluster periods are available, the investigators noted.
The current analysis was undertaken to examine the consistency of galcanezumab’s effect in episodic cluster headache during two cluster periods. Patients eligible for inclusion in the analysis had completed the double-blind phase of the CGAL study and had entered the open-label CGAR study.
CGAL was a phase 3, multicenter, randomized, double-blind study in which patients with episodic cluster headache were assigned to receive galcanezumab 300 mg per month or placebo. Patients who completed the double-blind and washout phases of this study were eligible for enrollment into CGAR, a phase 3b, single-arm safety study. The investigators determined the dose of galcanezumab in accordance with each patient’s symptoms and clinical response.
Response agreement
In both studies, the PGI-I was administered 1 month after the initial dose of galcanezumab. Only patients who were in an active cluster bout on entry into CGAR and who had valid PGI-I results 1 month after the first dose in CGAL and CGAR were included in the analysis.
PGI-I responses ranged from 1, signifying very much better, to 7, signifying very much worse. The investigators summarized the proportions of patients who reported each level of PGI-I score in CGAR and analyzed the results by dichotomizing PGI-I scores at both time points in two ways.
Fifty patients entered CGAR (78% men; mean age, 46.8 years). Of this group, Dr. Plato and colleagues included 39 in their analysis. Of the 17 patients who had a PGI-I score of 1 or 2 in CGAL, 12 (70.6%) had a score in the same range in CGAR. All four participants who had a score of 3 or higher in CGAL had a score in the same range in CGAR. Eighteen participants had a PGI-I score of 1, 2, or 3 in CGAL. Of this group, 15 patients (83.3%) had a score in the same range in CGAR. Of the three patients who had a score above 3 in CGAL, two (66.7%) had a score in the same range in CGAR.
The results indicate that most patients whose PGI-I score improved in one cluster bout, such as in CGAL, also improved in a subsequent bout, such as in CGAR, the investigators noted.
‘Encouraging’ results
Commenting on the study, Brian E. McGeeney, MD, a neurologist at the John R. Graham Headache Center, Brigham and Women’s Faulkner Hospital, Boston, noted that the PGI-I is an “easy-to-understand” outcome that has been widely used in headache medicine.
“Patient-assessed outcomes have become increasingly important and are an important complement to other outcomes,” said Dr. McGeeney, who was not involved in the research. However, a disadvantage is that “it is entirely subjective and may or may not reflect a change on other outcome measures that reflect the disorder itself,” he said.
“It can be difficult to demonstrate how much usefulness a treatment has with the helpful but simple outcome measures that are seen in CGAL and CGAR,” Dr. McGeeney added. “This is due to the nature of cluster headache and not to any methodological shortcomings of those studies.”
He said this is a core problem in general with cluster headache studies, “of which there are very few.”
In addition, CGAR only included episodic cluster headache, and the study period was relatively short; and CGAL only explored one cluster period per patient, Dr. McGeeney noted.
The current research attempts to provide insight that was previously unavailable, he said. “Many headache medicine clinical trial results reflect only one episode, and in general, we infer repeated usefulness – although it is not demonstrated in clinical trials,” said Dr. McGeeney.
“In this recent presentation, the authors attempt to go further and demonstrate some consistency across multiple cluster periods. The results are encouraging and what one might expect,” he said. However, “the small numbers and ad hoc nature preclude much inference from this study alone.”
Dr. Plato has received honoraria for speaking from Allergan, Amgen/Novartis, and Eli Lilly. He has also received research grants and support from Electrocore and Teva. Dr. McGeeney has consulted for Upsher-Smith and Theranica.
A version of this article originally appeared on Medscape.com.
new research suggests. A post hoc analysis of patients from the phase 3 CGAL study who also entered the open-label CGAR extension study was conducted. Results showed that the majority of participants whose scores on the Patient Global Impression of Improvement (PGI-I) showed improvement 1 month after the initial dose of galcanezumab in the CGAL study also showed improvement after treatment for subsequent cluster bouts during the CGAR study.
“There was good agreement between PGI-I between the two [cluster headache] periods,” noted the investigators, led by Brian Plato, DO, a neurologist at Norton Neuroscience Institute in Louisville, Ky.
The findings were presented at the virtual annual meeting of the American Headache Society.
Two cluster periods
Galcanezumab was approved by the Food and Drug Administration in 2019 for the treatment of episodic cluster headache in adults.
In cluster headache, attacks of recurrent, unilateral headaches with cranial autonomic symptoms last for weeks or months and are followed by periods of remission. Most studies of therapies for cluster headache examine only one cluster period. Few data about the consistency of treatment response throughout consecutive cluster periods are available, the investigators noted.
The current analysis was undertaken to examine the consistency of galcanezumab’s effect in episodic cluster headache during two cluster periods. Patients eligible for inclusion in the analysis had completed the double-blind phase of the CGAL study and had entered the open-label CGAR study.
CGAL was a phase 3, multicenter, randomized, double-blind study in which patients with episodic cluster headache were assigned to receive galcanezumab 300 mg per month or placebo. Patients who completed the double-blind and washout phases of this study were eligible for enrollment into CGAR, a phase 3b, single-arm safety study. The investigators determined the dose of galcanezumab in accordance with each patient’s symptoms and clinical response.
Response agreement
In both studies, the PGI-I was administered 1 month after the initial dose of galcanezumab. Only patients who were in an active cluster bout on entry into CGAR and who had valid PGI-I results 1 month after the first dose in CGAL and CGAR were included in the analysis.
PGI-I responses ranged from 1, signifying very much better, to 7, signifying very much worse. The investigators summarized the proportions of patients who reported each level of PGI-I score in CGAR and analyzed the results by dichotomizing PGI-I scores at both time points in two ways.
Fifty patients entered CGAR (78% men; mean age, 46.8 years). Of this group, Dr. Plato and colleagues included 39 in their analysis. Of the 17 patients who had a PGI-I score of 1 or 2 in CGAL, 12 (70.6%) had a score in the same range in CGAR. All four participants who had a score of 3 or higher in CGAL had a score in the same range in CGAR. Eighteen participants had a PGI-I score of 1, 2, or 3 in CGAL. Of this group, 15 patients (83.3%) had a score in the same range in CGAR. Of the three patients who had a score above 3 in CGAL, two (66.7%) had a score in the same range in CGAR.
The results indicate that most patients whose PGI-I score improved in one cluster bout, such as in CGAL, also improved in a subsequent bout, such as in CGAR, the investigators noted.
‘Encouraging’ results
Commenting on the study, Brian E. McGeeney, MD, a neurologist at the John R. Graham Headache Center, Brigham and Women’s Faulkner Hospital, Boston, noted that the PGI-I is an “easy-to-understand” outcome that has been widely used in headache medicine.
“Patient-assessed outcomes have become increasingly important and are an important complement to other outcomes,” said Dr. McGeeney, who was not involved in the research. However, a disadvantage is that “it is entirely subjective and may or may not reflect a change on other outcome measures that reflect the disorder itself,” he said.
“It can be difficult to demonstrate how much usefulness a treatment has with the helpful but simple outcome measures that are seen in CGAL and CGAR,” Dr. McGeeney added. “This is due to the nature of cluster headache and not to any methodological shortcomings of those studies.”
He said this is a core problem in general with cluster headache studies, “of which there are very few.”
In addition, CGAR only included episodic cluster headache, and the study period was relatively short; and CGAL only explored one cluster period per patient, Dr. McGeeney noted.
The current research attempts to provide insight that was previously unavailable, he said. “Many headache medicine clinical trial results reflect only one episode, and in general, we infer repeated usefulness – although it is not demonstrated in clinical trials,” said Dr. McGeeney.
“In this recent presentation, the authors attempt to go further and demonstrate some consistency across multiple cluster periods. The results are encouraging and what one might expect,” he said. However, “the small numbers and ad hoc nature preclude much inference from this study alone.”
Dr. Plato has received honoraria for speaking from Allergan, Amgen/Novartis, and Eli Lilly. He has also received research grants and support from Electrocore and Teva. Dr. McGeeney has consulted for Upsher-Smith and Theranica.
A version of this article originally appeared on Medscape.com.
new research suggests. A post hoc analysis of patients from the phase 3 CGAL study who also entered the open-label CGAR extension study was conducted. Results showed that the majority of participants whose scores on the Patient Global Impression of Improvement (PGI-I) showed improvement 1 month after the initial dose of galcanezumab in the CGAL study also showed improvement after treatment for subsequent cluster bouts during the CGAR study.
“There was good agreement between PGI-I between the two [cluster headache] periods,” noted the investigators, led by Brian Plato, DO, a neurologist at Norton Neuroscience Institute in Louisville, Ky.
The findings were presented at the virtual annual meeting of the American Headache Society.
Two cluster periods
Galcanezumab was approved by the Food and Drug Administration in 2019 for the treatment of episodic cluster headache in adults.
In cluster headache, attacks of recurrent, unilateral headaches with cranial autonomic symptoms last for weeks or months and are followed by periods of remission. Most studies of therapies for cluster headache examine only one cluster period. Few data about the consistency of treatment response throughout consecutive cluster periods are available, the investigators noted.
The current analysis was undertaken to examine the consistency of galcanezumab’s effect in episodic cluster headache during two cluster periods. Patients eligible for inclusion in the analysis had completed the double-blind phase of the CGAL study and had entered the open-label CGAR study.
CGAL was a phase 3, multicenter, randomized, double-blind study in which patients with episodic cluster headache were assigned to receive galcanezumab 300 mg per month or placebo. Patients who completed the double-blind and washout phases of this study were eligible for enrollment into CGAR, a phase 3b, single-arm safety study. The investigators determined the dose of galcanezumab in accordance with each patient’s symptoms and clinical response.
Response agreement
In both studies, the PGI-I was administered 1 month after the initial dose of galcanezumab. Only patients who were in an active cluster bout on entry into CGAR and who had valid PGI-I results 1 month after the first dose in CGAL and CGAR were included in the analysis.
PGI-I responses ranged from 1, signifying very much better, to 7, signifying very much worse. The investigators summarized the proportions of patients who reported each level of PGI-I score in CGAR and analyzed the results by dichotomizing PGI-I scores at both time points in two ways.
Fifty patients entered CGAR (78% men; mean age, 46.8 years). Of this group, Dr. Plato and colleagues included 39 in their analysis. Of the 17 patients who had a PGI-I score of 1 or 2 in CGAL, 12 (70.6%) had a score in the same range in CGAR. All four participants who had a score of 3 or higher in CGAL had a score in the same range in CGAR. Eighteen participants had a PGI-I score of 1, 2, or 3 in CGAL. Of this group, 15 patients (83.3%) had a score in the same range in CGAR. Of the three patients who had a score above 3 in CGAL, two (66.7%) had a score in the same range in CGAR.
The results indicate that most patients whose PGI-I score improved in one cluster bout, such as in CGAL, also improved in a subsequent bout, such as in CGAR, the investigators noted.
‘Encouraging’ results
Commenting on the study, Brian E. McGeeney, MD, a neurologist at the John R. Graham Headache Center, Brigham and Women’s Faulkner Hospital, Boston, noted that the PGI-I is an “easy-to-understand” outcome that has been widely used in headache medicine.
“Patient-assessed outcomes have become increasingly important and are an important complement to other outcomes,” said Dr. McGeeney, who was not involved in the research. However, a disadvantage is that “it is entirely subjective and may or may not reflect a change on other outcome measures that reflect the disorder itself,” he said.
“It can be difficult to demonstrate how much usefulness a treatment has with the helpful but simple outcome measures that are seen in CGAL and CGAR,” Dr. McGeeney added. “This is due to the nature of cluster headache and not to any methodological shortcomings of those studies.”
He said this is a core problem in general with cluster headache studies, “of which there are very few.”
In addition, CGAR only included episodic cluster headache, and the study period was relatively short; and CGAL only explored one cluster period per patient, Dr. McGeeney noted.
The current research attempts to provide insight that was previously unavailable, he said. “Many headache medicine clinical trial results reflect only one episode, and in general, we infer repeated usefulness – although it is not demonstrated in clinical trials,” said Dr. McGeeney.
“In this recent presentation, the authors attempt to go further and demonstrate some consistency across multiple cluster periods. The results are encouraging and what one might expect,” he said. However, “the small numbers and ad hoc nature preclude much inference from this study alone.”
Dr. Plato has received honoraria for speaking from Allergan, Amgen/Novartis, and Eli Lilly. He has also received research grants and support from Electrocore and Teva. Dr. McGeeney has consulted for Upsher-Smith and Theranica.
A version of this article originally appeared on Medscape.com.
FROM AHS 2020