Rheumatology

TOPLINE:

Janus kinase (JAK) inhibitors had a marginally superior effect on pain relief when compared with tumor necrosis factor (TNF) inhibitors in patients with rheumatoid arthritis (RA), particularly when used as monotherapy and in those previously treated with at least two biologic disease-modifying antirheumatic drugs (DMARDs), but their pain reduction effects were similar to those of non–TNF inhibitor biologic DMARDs.

METHODOLOGY:

• Researchers aimed to compare the effect of JAK inhibitors and each class of biologic DMARDs such as TNF inhibitors, rituximab, abatacept, and interleukin (IL)-6 inhibitors on pain in patients with RA in clinical practice.
• They included 8430 patients with RA who were initiated on either a JAK inhibitor (n = 1827), TNF inhibitor (n = 6422), IL-6 inhibitor (n = 887), abatacept (n = 1102), or rituximab (n = 1149) in 2017-2019.
• Differences in the change in pain, assessed using a visual analog scale (VAS; 0-100 mm), from baseline to 3 months were compared between the treatment arms.
• The proportion of patients who continued their initial treatment with low pain levels (VAS pain, < 20 mm) at 12 months was also evaluated.
• The comparisons of treatment responses between JAK inhibitors and biologic DMARDs were analyzed using multivariate linear regression, adjusted for patient characteristics, comorbidities, current co-medication, and previous treatment.

TAKEAWAY:

• Pain scores improved from baseline to 3 months in all the treatment arms, with mean changes ranging from −20.1 mm (95% CI, −23.1 to −17.2) for IL-6 inhibitors to −16.6 mm (95% CI, −19.1 to −14.0) for rituximab.
• At 3 months, JAK inhibitors reduced pain scores by 4.0 mm (95% CI, 1.7-6.3) more than TNF inhibitors and by 3.9 mm (95% CI, 0.9-6.9) more than rituximab; however, the change in pain was not significantly different on comparing JAK inhibitors with abatacept or IL-6 inhibitors.
• The superior pain-reducing effects of JAK inhibitors over those of TNF inhibitors were more prominent in those who were previously treated with at least two biologic DMARDs and when the treatments were used as monotherapy.
• At 12 months, 19.5% of the patients receiving JAK inhibitors continued their treatment and achieved low pain levels, with the corresponding proportions ranging from 17% to 26% for biologic DMARDs; JAK inhibitors were more effective in reducing pain than TNF inhibitors, although the difference was not statistically significant.

IN PRACTICE:

“JAK inhibitors yield slightly better pain outcomes than TNF inhibitors. The magnitude of these effects is unlikely to be clinically meaningful in unselected groups of patients with RA,” experts from Feinberg School of Medicine, Northwestern University, Chicago, wrote in an accompanying editorial. “Specific subgroups, such as those who have tried at least two DMARDs, may experience greater effects,” they added.

SOURCE:

The study was led by Anna Eberhard, MD, Department of Clinical Sciences, Lund University, Malmö, Sweden. It was published online on September 22, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

The study had a significant amount of missing data, particularly for follow-up evaluations, which may have introduced bias. The majority of patients were treated using baricitinib, potentially limiting the generalizability to other JAK inhibitors. Residual confounding could not be excluded despite adjustments for multiple relevant patient characteristics.

DISCLOSURES:

This study was supported by grants from The Swedish Research Council, The Swedish Rheumatism Association, and Lund University. Some authors declared receiving consulting fees, payments or honoraria, or grants or having other ties with pharmaceutical companies and other sources.
 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Janus kinase (JAK) inhibitors had a marginally superior effect on pain relief when compared with tumor necrosis factor (TNF) inhibitors in patients with rheumatoid arthritis (RA), particularly when used as monotherapy and in those previously treated with at least two biologic disease-modifying antirheumatic drugs (DMARDs), but their pain reduction effects were similar to those of non–TNF inhibitor biologic DMARDs.

METHODOLOGY:

• Researchers aimed to compare the effect of JAK inhibitors and each class of biologic DMARDs such as TNF inhibitors, rituximab, abatacept, and interleukin (IL)-6 inhibitors on pain in patients with RA in clinical practice.
• They included 8430 patients with RA who were initiated on either a JAK inhibitor (n = 1827), TNF inhibitor (n = 6422), IL-6 inhibitor (n = 887), abatacept (n = 1102), or rituximab (n = 1149) in 2017-2019.
• Differences in the change in pain, assessed using a visual analog scale (VAS; 0-100 mm), from baseline to 3 months were compared between the treatment arms.
• The proportion of patients who continued their initial treatment with low pain levels (VAS pain, < 20 mm) at 12 months was also evaluated.
• The comparisons of treatment responses between JAK inhibitors and biologic DMARDs were analyzed using multivariate linear regression, adjusted for patient characteristics, comorbidities, current co-medication, and previous treatment.

TAKEAWAY:

• Pain scores improved from baseline to 3 months in all the treatment arms, with mean changes ranging from −20.1 mm (95% CI, −23.1 to −17.2) for IL-6 inhibitors to −16.6 mm (95% CI, −19.1 to −14.0) for rituximab.
• At 3 months, JAK inhibitors reduced pain scores by 4.0 mm (95% CI, 1.7-6.3) more than TNF inhibitors and by 3.9 mm (95% CI, 0.9-6.9) more than rituximab; however, the change in pain was not significantly different on comparing JAK inhibitors with abatacept or IL-6 inhibitors.
• The superior pain-reducing effects of JAK inhibitors over those of TNF inhibitors were more prominent in those who were previously treated with at least two biologic DMARDs and when the treatments were used as monotherapy.
• At 12 months, 19.5% of the patients receiving JAK inhibitors continued their treatment and achieved low pain levels, with the corresponding proportions ranging from 17% to 26% for biologic DMARDs; JAK inhibitors were more effective in reducing pain than TNF inhibitors, although the difference was not statistically significant.

IN PRACTICE:

“JAK inhibitors yield slightly better pain outcomes than TNF inhibitors. The magnitude of these effects is unlikely to be clinically meaningful in unselected groups of patients with RA,” experts from Feinberg School of Medicine, Northwestern University, Chicago, wrote in an accompanying editorial. “Specific subgroups, such as those who have tried at least two DMARDs, may experience greater effects,” they added.

SOURCE:

The study was led by Anna Eberhard, MD, Department of Clinical Sciences, Lund University, Malmö, Sweden. It was published online on September 22, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

The study had a significant amount of missing data, particularly for follow-up evaluations, which may have introduced bias. The majority of patients were treated using baricitinib, potentially limiting the generalizability to other JAK inhibitors. Residual confounding could not be excluded despite adjustments for multiple relevant patient characteristics.

DISCLOSURES:

This study was supported by grants from The Swedish Research Council, The Swedish Rheumatism Association, and Lund University. Some authors declared receiving consulting fees, payments or honoraria, or grants or having other ties with pharmaceutical companies and other sources.
 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Janus kinase (JAK) inhibitors had a marginally superior effect on pain relief when compared with tumor necrosis factor (TNF) inhibitors in patients with rheumatoid arthritis (RA), particularly when used as monotherapy and in those previously treated with at least two biologic disease-modifying antirheumatic drugs (DMARDs), but their pain reduction effects were similar to those of non–TNF inhibitor biologic DMARDs.

METHODOLOGY:

• Researchers aimed to compare the effect of JAK inhibitors and each class of biologic DMARDs such as TNF inhibitors, rituximab, abatacept, and interleukin (IL)-6 inhibitors on pain in patients with RA in clinical practice.
• They included 8430 patients with RA who were initiated on either a JAK inhibitor (n = 1827), TNF inhibitor (n = 6422), IL-6 inhibitor (n = 887), abatacept (n = 1102), or rituximab (n = 1149) in 2017-2019.
• Differences in the change in pain, assessed using a visual analog scale (VAS; 0-100 mm), from baseline to 3 months were compared between the treatment arms.
• The proportion of patients who continued their initial treatment with low pain levels (VAS pain, < 20 mm) at 12 months was also evaluated.
• The comparisons of treatment responses between JAK inhibitors and biologic DMARDs were analyzed using multivariate linear regression, adjusted for patient characteristics, comorbidities, current co-medication, and previous treatment.

TAKEAWAY:

• Pain scores improved from baseline to 3 months in all the treatment arms, with mean changes ranging from −20.1 mm (95% CI, −23.1 to −17.2) for IL-6 inhibitors to −16.6 mm (95% CI, −19.1 to −14.0) for rituximab.
• At 3 months, JAK inhibitors reduced pain scores by 4.0 mm (95% CI, 1.7-6.3) more than TNF inhibitors and by 3.9 mm (95% CI, 0.9-6.9) more than rituximab; however, the change in pain was not significantly different on comparing JAK inhibitors with abatacept or IL-6 inhibitors.
• The superior pain-reducing effects of JAK inhibitors over those of TNF inhibitors were more prominent in those who were previously treated with at least two biologic DMARDs and when the treatments were used as monotherapy.
• At 12 months, 19.5% of the patients receiving JAK inhibitors continued their treatment and achieved low pain levels, with the corresponding proportions ranging from 17% to 26% for biologic DMARDs; JAK inhibitors were more effective in reducing pain than TNF inhibitors, although the difference was not statistically significant.

IN PRACTICE:

“JAK inhibitors yield slightly better pain outcomes than TNF inhibitors. The magnitude of these effects is unlikely to be clinically meaningful in unselected groups of patients with RA,” experts from Feinberg School of Medicine, Northwestern University, Chicago, wrote in an accompanying editorial. “Specific subgroups, such as those who have tried at least two DMARDs, may experience greater effects,” they added.

SOURCE:

The study was led by Anna Eberhard, MD, Department of Clinical Sciences, Lund University, Malmö, Sweden. It was published online on September 22, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

The study had a significant amount of missing data, particularly for follow-up evaluations, which may have introduced bias. The majority of patients were treated using baricitinib, potentially limiting the generalizability to other JAK inhibitors. Residual confounding could not be excluded despite adjustments for multiple relevant patient characteristics.

DISCLOSURES:

This study was supported by grants from The Swedish Research Council, The Swedish Rheumatism Association, and Lund University. Some authors declared receiving consulting fees, payments or honoraria, or grants or having other ties with pharmaceutical companies and other sources.
 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Genetic predisposition to gout, unfavorable lifestyle habits, and poor metabolic health are associated with an increased risk for cardiovascular disease (CVD); however, adherence to a healthy lifestyle can reduce this risk by up to 62%, even in individuals with high genetic risk.

METHODOLOGY:

• Researchers investigated the association between genetic predisposition to gout, combined with lifestyle habits, and the risk for CVD in two diverse prospective cohorts from different ancestral backgrounds.
• They analyzed the data of 224,689 participants of European descent from the UK Biobank (mean age, 57.0 years; 56.1% women) and 50,364 participants of East Asian descent from the Korean Genome and Epidemiology Study (KoGES; mean age, 53.7 years; 66.0% women).
• The genetic predisposition to gout was evaluated using a polygenic risk score (PRS) derived from a metagenome-wide association study, and the participants were categorized into low, intermediate, and high genetic risk groups based on their PRS for gout.
• A favorable lifestyle was defined as having ≥ 3 healthy lifestyle factors, and 0-1 metabolic syndrome factor defined the ideal metabolic health status.
• The incident CVD risk was evaluated according to genetic risk, lifestyle habits, and metabolic syndrome.

TAKEAWAY:

• Individuals in the high genetic risk group had a higher risk for CVD than those in the low genetic risk group in both the UK Biobank (adjusted hazard ratio [aHR], 1.10; P < .001) and KoGES (aHR, 1.31; P = .024) cohorts.
• In the UK Biobank cohort, individuals with a high genetic risk for gout and unfavorable lifestyle choices had a 1.99 times higher risk for incident CVD than those with low genetic risk (aHR, 1.99; P < .001); similar outcomes were observed in the KoGES cohort.
• Similarly, individuals with a high genetic risk for gout and poor metabolic health in the UK Biobank cohort had a 2.16 times higher risk for CVD than those with low genetic risk (aHR, 2.16; P < .001 for both); outcomes were no different in the KoGES cohort.
• Improving metabolic health and adhering to a healthy lifestyle reduced the risk for CVD by 62% in individuals with high genetic risk and by 46% in those with low genetic risk (P < .001 for both).

IN PRACTICE:

“PRS for gout can be used for preventing not only gout but also CVD. It is possible to identify individuals with high genetic risk for gout and strongly recommend modifying lifestyle habits. Weight reduction, smoking cessation, regular exercise, and eating healthy food are effective strategies to prevent gout and CVD,” the authors wrote.

SOURCE:

This study was led by Ki Won Moon, MD, PhD, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Republic of Korea, and SangHyuk Jung, PhD, University of Pennsylvania, Philadelphia, and was published online on October 8, 2024, in RMD Open.

LIMITATIONS: 

The definitions of lifestyle and metabolic syndrome were different in each cohort, which may have affected the findings. Data on lifestyle behaviors and metabolic health statuses were collected at enrollment, but these variables may have changed during the follow-up period, which potentially introduced bias into the results. This study was not able to establish causality between genetic predisposition to gout and the incident risk for CVD.

DISCLOSURES:

This study was supported by the National Institute of General Medical Sciences and the National Research Foundation of Korea. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Genetic predisposition to gout, unfavorable lifestyle habits, and poor metabolic health are associated with an increased risk for cardiovascular disease (CVD); however, adherence to a healthy lifestyle can reduce this risk by up to 62%, even in individuals with high genetic risk.

METHODOLOGY:

• Researchers investigated the association between genetic predisposition to gout, combined with lifestyle habits, and the risk for CVD in two diverse prospective cohorts from different ancestral backgrounds.
• They analyzed the data of 224,689 participants of European descent from the UK Biobank (mean age, 57.0 years; 56.1% women) and 50,364 participants of East Asian descent from the Korean Genome and Epidemiology Study (KoGES; mean age, 53.7 years; 66.0% women).
• The genetic predisposition to gout was evaluated using a polygenic risk score (PRS) derived from a metagenome-wide association study, and the participants were categorized into low, intermediate, and high genetic risk groups based on their PRS for gout.
• A favorable lifestyle was defined as having ≥ 3 healthy lifestyle factors, and 0-1 metabolic syndrome factor defined the ideal metabolic health status.
• The incident CVD risk was evaluated according to genetic risk, lifestyle habits, and metabolic syndrome.

TAKEAWAY:

• Individuals in the high genetic risk group had a higher risk for CVD than those in the low genetic risk group in both the UK Biobank (adjusted hazard ratio [aHR], 1.10; P < .001) and KoGES (aHR, 1.31; P = .024) cohorts.
• In the UK Biobank cohort, individuals with a high genetic risk for gout and unfavorable lifestyle choices had a 1.99 times higher risk for incident CVD than those with low genetic risk (aHR, 1.99; P < .001); similar outcomes were observed in the KoGES cohort.
• Similarly, individuals with a high genetic risk for gout and poor metabolic health in the UK Biobank cohort had a 2.16 times higher risk for CVD than those with low genetic risk (aHR, 2.16; P < .001 for both); outcomes were no different in the KoGES cohort.
• Improving metabolic health and adhering to a healthy lifestyle reduced the risk for CVD by 62% in individuals with high genetic risk and by 46% in those with low genetic risk (P < .001 for both).

IN PRACTICE:

“PRS for gout can be used for preventing not only gout but also CVD. It is possible to identify individuals with high genetic risk for gout and strongly recommend modifying lifestyle habits. Weight reduction, smoking cessation, regular exercise, and eating healthy food are effective strategies to prevent gout and CVD,” the authors wrote.

SOURCE:

This study was led by Ki Won Moon, MD, PhD, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Republic of Korea, and SangHyuk Jung, PhD, University of Pennsylvania, Philadelphia, and was published online on October 8, 2024, in RMD Open.

LIMITATIONS: 

The definitions of lifestyle and metabolic syndrome were different in each cohort, which may have affected the findings. Data on lifestyle behaviors and metabolic health statuses were collected at enrollment, but these variables may have changed during the follow-up period, which potentially introduced bias into the results. This study was not able to establish causality between genetic predisposition to gout and the incident risk for CVD.

DISCLOSURES:

This study was supported by the National Institute of General Medical Sciences and the National Research Foundation of Korea. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Genetic predisposition to gout, unfavorable lifestyle habits, and poor metabolic health are associated with an increased risk for cardiovascular disease (CVD); however, adherence to a healthy lifestyle can reduce this risk by up to 62%, even in individuals with high genetic risk.

METHODOLOGY:

• Researchers investigated the association between genetic predisposition to gout, combined with lifestyle habits, and the risk for CVD in two diverse prospective cohorts from different ancestral backgrounds.
• They analyzed the data of 224,689 participants of European descent from the UK Biobank (mean age, 57.0 years; 56.1% women) and 50,364 participants of East Asian descent from the Korean Genome and Epidemiology Study (KoGES; mean age, 53.7 years; 66.0% women).
• The genetic predisposition to gout was evaluated using a polygenic risk score (PRS) derived from a metagenome-wide association study, and the participants were categorized into low, intermediate, and high genetic risk groups based on their PRS for gout.
• A favorable lifestyle was defined as having ≥ 3 healthy lifestyle factors, and 0-1 metabolic syndrome factor defined the ideal metabolic health status.
• The incident CVD risk was evaluated according to genetic risk, lifestyle habits, and metabolic syndrome.

TAKEAWAY:

• Individuals in the high genetic risk group had a higher risk for CVD than those in the low genetic risk group in both the UK Biobank (adjusted hazard ratio [aHR], 1.10; P < .001) and KoGES (aHR, 1.31; P = .024) cohorts.
• In the UK Biobank cohort, individuals with a high genetic risk for gout and unfavorable lifestyle choices had a 1.99 times higher risk for incident CVD than those with low genetic risk (aHR, 1.99; P < .001); similar outcomes were observed in the KoGES cohort.
• Similarly, individuals with a high genetic risk for gout and poor metabolic health in the UK Biobank cohort had a 2.16 times higher risk for CVD than those with low genetic risk (aHR, 2.16; P < .001 for both); outcomes were no different in the KoGES cohort.
• Improving metabolic health and adhering to a healthy lifestyle reduced the risk for CVD by 62% in individuals with high genetic risk and by 46% in those with low genetic risk (P < .001 for both).

IN PRACTICE:

“PRS for gout can be used for preventing not only gout but also CVD. It is possible to identify individuals with high genetic risk for gout and strongly recommend modifying lifestyle habits. Weight reduction, smoking cessation, regular exercise, and eating healthy food are effective strategies to prevent gout and CVD,” the authors wrote.

SOURCE:

This study was led by Ki Won Moon, MD, PhD, Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Republic of Korea, and SangHyuk Jung, PhD, University of Pennsylvania, Philadelphia, and was published online on October 8, 2024, in RMD Open.

LIMITATIONS: 

The definitions of lifestyle and metabolic syndrome were different in each cohort, which may have affected the findings. Data on lifestyle behaviors and metabolic health statuses were collected at enrollment, but these variables may have changed during the follow-up period, which potentially introduced bias into the results. This study was not able to establish causality between genetic predisposition to gout and the incident risk for CVD.

DISCLOSURES:

This study was supported by the National Institute of General Medical Sciences and the National Research Foundation of Korea. The authors declared no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

Depending on one’s perspective, “mast cell activation syndrome (MCAS)” is either a relatively rare, narrowly defined severe allergic condition or a vastly underrecognized underlying cause of multiple chronic inflammatory conditions that affect roughly 17% of the entire population. 

Inappropriate activation of mast cells — now termed mast cell activation disease (MCAD) — has long been known to underlie allergic symptoms and inflammation, and far less commonly, neoplasias such as mastocytosis. The concept of chronic, persistent MCAS associated with aberrant growth and dystrophism is more recent, emerging only in the last couple of decades as a separate entity under the MCAD heading. 

Observational studies and clinical experience have linked signs and symptoms of MCAS with other inflammatory chronic conditions such as hypermobile Ehlers-Danlos Syndrome (EDS), postural orthostatic tachycardia syndrome (POTS), myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and recently, long COVID. However, those conditions themselves are diagnostically challenging, and as yet there is no proof of causation.

The idea that MCAS is the entity — or at least, a key one — at the center of “a confoundingly, extraordinarily heterogeneous chronic multisystem polymorbidity” was the theme of a recent 4-day meeting of a professional group informally dubbed “Masterminds.” Since their first meeting in 2018, the group has grown from about 35 to nearly 650 multidisciplinary professionals. 

Stephanie L. Grach, MD, assistant professor of medicine at the Mayo Clinic, Rochester, Minnesota, gave an introductory talk about the importance of changing “the medical paradigm around complex chronic illness.” Much of the rest of the meeting was devoted to sharing approaches for managing MCAS comorbidities, including dysautonomia, hypermobility, and associated craniocervical dysfunction, and various other multi-system conditions characterized by chronic pain and/or fatigue. Several talks covered the use of agents that block mast cell activity as potential treatment. 

In an interview, Grach said “the meeting was an exciting example of how not only research, but also medicine, is moving forward, and it’s really cool to see that people are independently coming to very similar conclusions about shared pathologies, and because of that, the importance of overlap amongst complex medical conditions that historically have really been poorly addressed.”

She added, “mast cell activation, or mast cell hyperactivity, is one part of the greater picture. What’s important about the mast cell component is that of the multiple different targetable pathologies, it’s one that currently has potential available therapies that can be explored, some of them relatively easily.”

But Christopher Chang, MD, PhD, chief of the Pediatric Allergy and Immunology program, Joe DiMaggio Children’s Hospital, Hollywood, Florida, sees it differently. In an interview, he noted that the reason for disagreement over what constitutes MCAS is that “it doesn’t have a lot of objective findings that we can identify. ... We know that mast cells are important immune cells, just like all immune cells are important. It seems like whenever someone has unexplained symptoms, people try to blame it on mast cells. But it’s very hard to prove that.” 
 

Two Definitions Characterize the Illness Differently

One proposed “consensus” MCAS definition was first published in 2011 by a group led by hematologist Peter Valent, MD, of the Medical University of Vienna in Austria. It has been revised since, and similar versions adopted by medical societies, including the American Academy of Allergy, Asthma & Immunology (AAAAI). The most recent versions propose three core MCAS criteria: 

• Typical clinical signs of severe, recurrent (episodic) systemic (at least two organ systems) MCA are present (often in the form of anaphylaxis).
• The involvement of mast cells (MCs) is documented by biochemical studies, preferably an increase in serum tryptase levels from the individual’s baseline to plus 20% + 2 ng/mL.
• Response of symptoms to therapy with MC-stabilizing agents, drugs directed against MC mediator production, or drugs blocking mediator release or effects of MC-derived mediators.

The following year, a separate publication authored by Gerhard J. Molderings, MD, University of Bonn in Germany, and colleagues proposed a much broader MCAS definition. Also revised since, the latest “consensus-2” was published in 2020. This definition consists of one major criterion: “A constellation of clinical complaints attributable to pathologically increased MC activity, ie, MC mediator release syndrome.” This “constellation” involves conditions of nearly every organ system that, taken together, are estimated to affect up to 17% of the entire population. These are just a few examples: 

• Constitutional: Chronic fatigue, flushing, or sweats
• Dermatologic: Rashes or lesions
• Ophthalmologic: dry eyes
• Oral: Burning or itching in mouth
• Pulmonary: Airway inflammation at any/all levels
• Cardiovascular: Blood pressure lability or codiagnosis of POTS is common
• Gastrointestinal: Reflux, dysphagia, or malabsorption
• Genitourinary: Endometriosis, dysmenorrhea, or dyspareunia
• Musculoskeletal/connective tissue: Fibromyalgia or diagnosis of hypermobile EDS is common
• Neurologic: Headaches or sensory neuropathies
• Psychiatric: Depression or anxiety
• Endocrinologic: Thyroid disease or dyslipidemia
• Hematologic: Polycythemia or anemia (after ruling out other causes)

The diagnosis is made by fulfilling that major criterion, plus at least one objective assessment of pathologically increased release of MC mediators, including infiltrates, abnormal MC morphology, or MC genetic changes shown to increase MC activity. Other alternatives include evidence of above-normal levels of MC mediators, including tryptase, histamine or its metabolites, heparin, or chromatin A, in whole blood, serum, plasma, or urine. Symptomatic response to MC activation inhibitors can also be used but isn’t required as it is in the other definition. 
 

Underdiagnosis vs Overdiagnosis

Lawrence B. Afrin, MD, senior consultant in hematology/oncology at the AIM Center for Personalized Medicine, Westchester, New York, and lead author of the 2020 update of the broader “consensus-2” criteria, said in an interview, “we now know MCAS exists, and it’s prevalent, even though, for understandable and forgivable reasons, we’ve been missing it all along. ... If you see a patient who has this chronic, multisystem unwellness with general themes of inflammation plus or minus allergic issues and you can’t find some other rational explanation that better accounts for what’s going on ... then it’s reasonable to think to include MCAS in the differential diagnosis. If the patient happens not to fit the diagnostic criteria being advanced by one group, that doesn’t necessarily rule out the possibility that this is still going on.”

Afrin, along with his coauthors, faulted the narrower “consensus-1” definition for lacking data to support the “20% + 2” criteria for requiring the difficult determination of a patient’s “baseline” and for requiring evidence of response to treatment prior to making the diagnosis. Not all patients will respond to a given histamine blocker, he noted. 

But Lawrence B. Schwartz, MD, PhD, an author on both the Valent and AAAAI criteria, disagreed, noting that the narrower criteria “appear to have a high degree of specificity and sensitivity when the reaction is systemic and involves hypotension. Less severe clinical events, particularly involving the gastrointestinal or central nervous systems, do not have precise clinical or biomarker criteria for identifying mast cell involvement.” 

Added Schwartz, who is professor of medicine and chair of the Division of Rheumatology, Allergy, and Immunology and program director of Allergy and Immunology, Virginia Commonwealth University (VCU), Richmond, “when mast cell activation events occur only in the skin, we refer to it as chronic urticaria and in the airways or conjunctiva of allergic individuals as allergic asthma, rhinitis, and/or conjunctivitis. The absence of specific criteria for mast cell activation in the GI [gastrointestinal] tract or CNS [central nervous system] neither rules in mast cell involvement nor does it rule out mast cell involvement. Thus, more research is needed to find better diagnostic criteria.”

Schwartz also pointed to a recent paper reporting the use of artificial intelligence models to “quantify diagnostic precision and specificity” of “alternative” MCAS definitions. The conclusion was a “lack of specificity is pronounced in relation to multiple control criteria, raising the concern that alternative criteria could disproportionately contribute to MCAS overdiagnosis, to the exclusion of more appropriate diagnoses.”

During the meeting, Afrin acknowledged that the broader view risks overdiagnosis of MCAS. However, he also referenced Occam’s razor, the principle that the simplest explanation is probably the best one. “Which scenario is more likely? Multiple diagnoses and problems that are all independent of each other vs one diagnosis that’s biologically capable of causing most or all of the findings, ie, the simplest solution even if it’s not the most immediately obvious solution?”

He said in an interview: “Do we have any proof that MCAS is what’s underlying hypermobile Ehlers-Danlos or POTS or chronic fatigue? No, we don’t have any proof, not because anybody has done studies that have shown there to be no connection but simply because we’re so early in our awareness that the disease even exists that the necessary studies haven’t even been done yet.”

At the meeting, Afrin introduced proposals to turn the “Masterminds” group into a formal professional society and to launch a journal. He also gave an update on progress in developing a symptom assessment tool both for clinical use and to enable clinical trials of new drugs to target mast cells or their mediators. The plan is to field test the tool in 2025 and publish those results in 2026. 

Grach, Afrin, and Chang had no disclosures. Schwartz discovered tryptase and invented the Thermo Fisher tryptase assay, for which his institution (VCU) receives royalties that are shared with him. He also invented monoclonal antibodies used for detecting mast cells or basophils, for which VCU receives royalties from several companies, including Millipore, Santa Cruz, BioLegend, and Hycult Biotech, that are also shared with him. He is a paid consultant for Blueprint Medicines, Celldex Therapeutics, Invea, Third Harmonic Bio, HYCOR Biomedical, Jasper, TerSera Therapeutics, and GLG. He also serves on an AstraZeneca data safety monitoring board for a clinical trial involving benralizumab treatment of hypereosinophilic syndrome and receives royalties from UpToDate (biomarkers for anaphylaxis) and Goldman-Cecil Medicine (anaphylaxis).

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

Depending on one’s perspective, “mast cell activation syndrome (MCAS)” is either a relatively rare, narrowly defined severe allergic condition or a vastly underrecognized underlying cause of multiple chronic inflammatory conditions that affect roughly 17% of the entire population. 

Inappropriate activation of mast cells — now termed mast cell activation disease (MCAD) — has long been known to underlie allergic symptoms and inflammation, and far less commonly, neoplasias such as mastocytosis. The concept of chronic, persistent MCAS associated with aberrant growth and dystrophism is more recent, emerging only in the last couple of decades as a separate entity under the MCAD heading. 

Observational studies and clinical experience have linked signs and symptoms of MCAS with other inflammatory chronic conditions such as hypermobile Ehlers-Danlos Syndrome (EDS), postural orthostatic tachycardia syndrome (POTS), myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and recently, long COVID. However, those conditions themselves are diagnostically challenging, and as yet there is no proof of causation.

The idea that MCAS is the entity — or at least, a key one — at the center of “a confoundingly, extraordinarily heterogeneous chronic multisystem polymorbidity” was the theme of a recent 4-day meeting of a professional group informally dubbed “Masterminds.” Since their first meeting in 2018, the group has grown from about 35 to nearly 650 multidisciplinary professionals. 

Stephanie L. Grach, MD, assistant professor of medicine at the Mayo Clinic, Rochester, Minnesota, gave an introductory talk about the importance of changing “the medical paradigm around complex chronic illness.” Much of the rest of the meeting was devoted to sharing approaches for managing MCAS comorbidities, including dysautonomia, hypermobility, and associated craniocervical dysfunction, and various other multi-system conditions characterized by chronic pain and/or fatigue. Several talks covered the use of agents that block mast cell activity as potential treatment. 

In an interview, Grach said “the meeting was an exciting example of how not only research, but also medicine, is moving forward, and it’s really cool to see that people are independently coming to very similar conclusions about shared pathologies, and because of that, the importance of overlap amongst complex medical conditions that historically have really been poorly addressed.”

She added, “mast cell activation, or mast cell hyperactivity, is one part of the greater picture. What’s important about the mast cell component is that of the multiple different targetable pathologies, it’s one that currently has potential available therapies that can be explored, some of them relatively easily.”

But Christopher Chang, MD, PhD, chief of the Pediatric Allergy and Immunology program, Joe DiMaggio Children’s Hospital, Hollywood, Florida, sees it differently. In an interview, he noted that the reason for disagreement over what constitutes MCAS is that “it doesn’t have a lot of objective findings that we can identify. ... We know that mast cells are important immune cells, just like all immune cells are important. It seems like whenever someone has unexplained symptoms, people try to blame it on mast cells. But it’s very hard to prove that.” 
 

Two Definitions Characterize the Illness Differently

One proposed “consensus” MCAS definition was first published in 2011 by a group led by hematologist Peter Valent, MD, of the Medical University of Vienna in Austria. It has been revised since, and similar versions adopted by medical societies, including the American Academy of Allergy, Asthma & Immunology (AAAAI). The most recent versions propose three core MCAS criteria: 

• Typical clinical signs of severe, recurrent (episodic) systemic (at least two organ systems) MCA are present (often in the form of anaphylaxis).
• The involvement of mast cells (MCs) is documented by biochemical studies, preferably an increase in serum tryptase levels from the individual’s baseline to plus 20% + 2 ng/mL.
• Response of symptoms to therapy with MC-stabilizing agents, drugs directed against MC mediator production, or drugs blocking mediator release or effects of MC-derived mediators.

The following year, a separate publication authored by Gerhard J. Molderings, MD, University of Bonn in Germany, and colleagues proposed a much broader MCAS definition. Also revised since, the latest “consensus-2” was published in 2020. This definition consists of one major criterion: “A constellation of clinical complaints attributable to pathologically increased MC activity, ie, MC mediator release syndrome.” This “constellation” involves conditions of nearly every organ system that, taken together, are estimated to affect up to 17% of the entire population. These are just a few examples: 

• Constitutional: Chronic fatigue, flushing, or sweats
• Dermatologic: Rashes or lesions
• Ophthalmologic: dry eyes
• Oral: Burning or itching in mouth
• Pulmonary: Airway inflammation at any/all levels
• Cardiovascular: Blood pressure lability or codiagnosis of POTS is common
• Gastrointestinal: Reflux, dysphagia, or malabsorption
• Genitourinary: Endometriosis, dysmenorrhea, or dyspareunia
• Musculoskeletal/connective tissue: Fibromyalgia or diagnosis of hypermobile EDS is common
• Neurologic: Headaches or sensory neuropathies
• Psychiatric: Depression or anxiety
• Endocrinologic: Thyroid disease or dyslipidemia
• Hematologic: Polycythemia or anemia (after ruling out other causes)

The diagnosis is made by fulfilling that major criterion, plus at least one objective assessment of pathologically increased release of MC mediators, including infiltrates, abnormal MC morphology, or MC genetic changes shown to increase MC activity. Other alternatives include evidence of above-normal levels of MC mediators, including tryptase, histamine or its metabolites, heparin, or chromatin A, in whole blood, serum, plasma, or urine. Symptomatic response to MC activation inhibitors can also be used but isn’t required as it is in the other definition. 
 

Underdiagnosis vs Overdiagnosis

Lawrence B. Afrin, MD, senior consultant in hematology/oncology at the AIM Center for Personalized Medicine, Westchester, New York, and lead author of the 2020 update of the broader “consensus-2” criteria, said in an interview, “we now know MCAS exists, and it’s prevalent, even though, for understandable and forgivable reasons, we’ve been missing it all along. ... If you see a patient who has this chronic, multisystem unwellness with general themes of inflammation plus or minus allergic issues and you can’t find some other rational explanation that better accounts for what’s going on ... then it’s reasonable to think to include MCAS in the differential diagnosis. If the patient happens not to fit the diagnostic criteria being advanced by one group, that doesn’t necessarily rule out the possibility that this is still going on.”

Afrin, along with his coauthors, faulted the narrower “consensus-1” definition for lacking data to support the “20% + 2” criteria for requiring the difficult determination of a patient’s “baseline” and for requiring evidence of response to treatment prior to making the diagnosis. Not all patients will respond to a given histamine blocker, he noted. 

But Lawrence B. Schwartz, MD, PhD, an author on both the Valent and AAAAI criteria, disagreed, noting that the narrower criteria “appear to have a high degree of specificity and sensitivity when the reaction is systemic and involves hypotension. Less severe clinical events, particularly involving the gastrointestinal or central nervous systems, do not have precise clinical or biomarker criteria for identifying mast cell involvement.” 

Added Schwartz, who is professor of medicine and chair of the Division of Rheumatology, Allergy, and Immunology and program director of Allergy and Immunology, Virginia Commonwealth University (VCU), Richmond, “when mast cell activation events occur only in the skin, we refer to it as chronic urticaria and in the airways or conjunctiva of allergic individuals as allergic asthma, rhinitis, and/or conjunctivitis. The absence of specific criteria for mast cell activation in the GI [gastrointestinal] tract or CNS [central nervous system] neither rules in mast cell involvement nor does it rule out mast cell involvement. Thus, more research is needed to find better diagnostic criteria.”

Schwartz also pointed to a recent paper reporting the use of artificial intelligence models to “quantify diagnostic precision and specificity” of “alternative” MCAS definitions. The conclusion was a “lack of specificity is pronounced in relation to multiple control criteria, raising the concern that alternative criteria could disproportionately contribute to MCAS overdiagnosis, to the exclusion of more appropriate diagnoses.”

During the meeting, Afrin acknowledged that the broader view risks overdiagnosis of MCAS. However, he also referenced Occam’s razor, the principle that the simplest explanation is probably the best one. “Which scenario is more likely? Multiple diagnoses and problems that are all independent of each other vs one diagnosis that’s biologically capable of causing most or all of the findings, ie, the simplest solution even if it’s not the most immediately obvious solution?”

He said in an interview: “Do we have any proof that MCAS is what’s underlying hypermobile Ehlers-Danlos or POTS or chronic fatigue? No, we don’t have any proof, not because anybody has done studies that have shown there to be no connection but simply because we’re so early in our awareness that the disease even exists that the necessary studies haven’t even been done yet.”

At the meeting, Afrin introduced proposals to turn the “Masterminds” group into a formal professional society and to launch a journal. He also gave an update on progress in developing a symptom assessment tool both for clinical use and to enable clinical trials of new drugs to target mast cells or their mediators. The plan is to field test the tool in 2025 and publish those results in 2026. 

Grach, Afrin, and Chang had no disclosures. Schwartz discovered tryptase and invented the Thermo Fisher tryptase assay, for which his institution (VCU) receives royalties that are shared with him. He also invented monoclonal antibodies used for detecting mast cells or basophils, for which VCU receives royalties from several companies, including Millipore, Santa Cruz, BioLegend, and Hycult Biotech, that are also shared with him. He is a paid consultant for Blueprint Medicines, Celldex Therapeutics, Invea, Third Harmonic Bio, HYCOR Biomedical, Jasper, TerSera Therapeutics, and GLG. He also serves on an AstraZeneca data safety monitoring board for a clinical trial involving benralizumab treatment of hypereosinophilic syndrome and receives royalties from UpToDate (biomarkers for anaphylaxis) and Goldman-Cecil Medicine (anaphylaxis).

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

Depending on one’s perspective, “mast cell activation syndrome (MCAS)” is either a relatively rare, narrowly defined severe allergic condition or a vastly underrecognized underlying cause of multiple chronic inflammatory conditions that affect roughly 17% of the entire population. 

Inappropriate activation of mast cells — now termed mast cell activation disease (MCAD) — has long been known to underlie allergic symptoms and inflammation, and far less commonly, neoplasias such as mastocytosis. The concept of chronic, persistent MCAS associated with aberrant growth and dystrophism is more recent, emerging only in the last couple of decades as a separate entity under the MCAD heading. 

Observational studies and clinical experience have linked signs and symptoms of MCAS with other inflammatory chronic conditions such as hypermobile Ehlers-Danlos Syndrome (EDS), postural orthostatic tachycardia syndrome (POTS), myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and recently, long COVID. However, those conditions themselves are diagnostically challenging, and as yet there is no proof of causation.

The idea that MCAS is the entity — or at least, a key one — at the center of “a confoundingly, extraordinarily heterogeneous chronic multisystem polymorbidity” was the theme of a recent 4-day meeting of a professional group informally dubbed “Masterminds.” Since their first meeting in 2018, the group has grown from about 35 to nearly 650 multidisciplinary professionals. 

Stephanie L. Grach, MD, assistant professor of medicine at the Mayo Clinic, Rochester, Minnesota, gave an introductory talk about the importance of changing “the medical paradigm around complex chronic illness.” Much of the rest of the meeting was devoted to sharing approaches for managing MCAS comorbidities, including dysautonomia, hypermobility, and associated craniocervical dysfunction, and various other multi-system conditions characterized by chronic pain and/or fatigue. Several talks covered the use of agents that block mast cell activity as potential treatment. 

In an interview, Grach said “the meeting was an exciting example of how not only research, but also medicine, is moving forward, and it’s really cool to see that people are independently coming to very similar conclusions about shared pathologies, and because of that, the importance of overlap amongst complex medical conditions that historically have really been poorly addressed.”

She added, “mast cell activation, or mast cell hyperactivity, is one part of the greater picture. What’s important about the mast cell component is that of the multiple different targetable pathologies, it’s one that currently has potential available therapies that can be explored, some of them relatively easily.”

But Christopher Chang, MD, PhD, chief of the Pediatric Allergy and Immunology program, Joe DiMaggio Children’s Hospital, Hollywood, Florida, sees it differently. In an interview, he noted that the reason for disagreement over what constitutes MCAS is that “it doesn’t have a lot of objective findings that we can identify. ... We know that mast cells are important immune cells, just like all immune cells are important. It seems like whenever someone has unexplained symptoms, people try to blame it on mast cells. But it’s very hard to prove that.” 
 

Two Definitions Characterize the Illness Differently

One proposed “consensus” MCAS definition was first published in 2011 by a group led by hematologist Peter Valent, MD, of the Medical University of Vienna in Austria. It has been revised since, and similar versions adopted by medical societies, including the American Academy of Allergy, Asthma & Immunology (AAAAI). The most recent versions propose three core MCAS criteria: 

• Typical clinical signs of severe, recurrent (episodic) systemic (at least two organ systems) MCA are present (often in the form of anaphylaxis).
• The involvement of mast cells (MCs) is documented by biochemical studies, preferably an increase in serum tryptase levels from the individual’s baseline to plus 20% + 2 ng/mL.
• Response of symptoms to therapy with MC-stabilizing agents, drugs directed against MC mediator production, or drugs blocking mediator release or effects of MC-derived mediators.

The following year, a separate publication authored by Gerhard J. Molderings, MD, University of Bonn in Germany, and colleagues proposed a much broader MCAS definition. Also revised since, the latest “consensus-2” was published in 2020. This definition consists of one major criterion: “A constellation of clinical complaints attributable to pathologically increased MC activity, ie, MC mediator release syndrome.” This “constellation” involves conditions of nearly every organ system that, taken together, are estimated to affect up to 17% of the entire population. These are just a few examples: 

• Constitutional: Chronic fatigue, flushing, or sweats
• Dermatologic: Rashes or lesions
• Ophthalmologic: dry eyes
• Oral: Burning or itching in mouth
• Pulmonary: Airway inflammation at any/all levels
• Cardiovascular: Blood pressure lability or codiagnosis of POTS is common
• Gastrointestinal: Reflux, dysphagia, or malabsorption
• Genitourinary: Endometriosis, dysmenorrhea, or dyspareunia
• Musculoskeletal/connective tissue: Fibromyalgia or diagnosis of hypermobile EDS is common
• Neurologic: Headaches or sensory neuropathies
• Psychiatric: Depression or anxiety
• Endocrinologic: Thyroid disease or dyslipidemia
• Hematologic: Polycythemia or anemia (after ruling out other causes)

The diagnosis is made by fulfilling that major criterion, plus at least one objective assessment of pathologically increased release of MC mediators, including infiltrates, abnormal MC morphology, or MC genetic changes shown to increase MC activity. Other alternatives include evidence of above-normal levels of MC mediators, including tryptase, histamine or its metabolites, heparin, or chromatin A, in whole blood, serum, plasma, or urine. Symptomatic response to MC activation inhibitors can also be used but isn’t required as it is in the other definition. 
 

Underdiagnosis vs Overdiagnosis

Lawrence B. Afrin, MD, senior consultant in hematology/oncology at the AIM Center for Personalized Medicine, Westchester, New York, and lead author of the 2020 update of the broader “consensus-2” criteria, said in an interview, “we now know MCAS exists, and it’s prevalent, even though, for understandable and forgivable reasons, we’ve been missing it all along. ... If you see a patient who has this chronic, multisystem unwellness with general themes of inflammation plus or minus allergic issues and you can’t find some other rational explanation that better accounts for what’s going on ... then it’s reasonable to think to include MCAS in the differential diagnosis. If the patient happens not to fit the diagnostic criteria being advanced by one group, that doesn’t necessarily rule out the possibility that this is still going on.”

Afrin, along with his coauthors, faulted the narrower “consensus-1” definition for lacking data to support the “20% + 2” criteria for requiring the difficult determination of a patient’s “baseline” and for requiring evidence of response to treatment prior to making the diagnosis. Not all patients will respond to a given histamine blocker, he noted. 

But Lawrence B. Schwartz, MD, PhD, an author on both the Valent and AAAAI criteria, disagreed, noting that the narrower criteria “appear to have a high degree of specificity and sensitivity when the reaction is systemic and involves hypotension. Less severe clinical events, particularly involving the gastrointestinal or central nervous systems, do not have precise clinical or biomarker criteria for identifying mast cell involvement.” 

Added Schwartz, who is professor of medicine and chair of the Division of Rheumatology, Allergy, and Immunology and program director of Allergy and Immunology, Virginia Commonwealth University (VCU), Richmond, “when mast cell activation events occur only in the skin, we refer to it as chronic urticaria and in the airways or conjunctiva of allergic individuals as allergic asthma, rhinitis, and/or conjunctivitis. The absence of specific criteria for mast cell activation in the GI [gastrointestinal] tract or CNS [central nervous system] neither rules in mast cell involvement nor does it rule out mast cell involvement. Thus, more research is needed to find better diagnostic criteria.”

Schwartz also pointed to a recent paper reporting the use of artificial intelligence models to “quantify diagnostic precision and specificity” of “alternative” MCAS definitions. The conclusion was a “lack of specificity is pronounced in relation to multiple control criteria, raising the concern that alternative criteria could disproportionately contribute to MCAS overdiagnosis, to the exclusion of more appropriate diagnoses.”

During the meeting, Afrin acknowledged that the broader view risks overdiagnosis of MCAS. However, he also referenced Occam’s razor, the principle that the simplest explanation is probably the best one. “Which scenario is more likely? Multiple diagnoses and problems that are all independent of each other vs one diagnosis that’s biologically capable of causing most or all of the findings, ie, the simplest solution even if it’s not the most immediately obvious solution?”

He said in an interview: “Do we have any proof that MCAS is what’s underlying hypermobile Ehlers-Danlos or POTS or chronic fatigue? No, we don’t have any proof, not because anybody has done studies that have shown there to be no connection but simply because we’re so early in our awareness that the disease even exists that the necessary studies haven’t even been done yet.”

At the meeting, Afrin introduced proposals to turn the “Masterminds” group into a formal professional society and to launch a journal. He also gave an update on progress in developing a symptom assessment tool both for clinical use and to enable clinical trials of new drugs to target mast cells or their mediators. The plan is to field test the tool in 2025 and publish those results in 2026. 

Grach, Afrin, and Chang had no disclosures. Schwartz discovered tryptase and invented the Thermo Fisher tryptase assay, for which his institution (VCU) receives royalties that are shared with him. He also invented monoclonal antibodies used for detecting mast cells or basophils, for which VCU receives royalties from several companies, including Millipore, Santa Cruz, BioLegend, and Hycult Biotech, that are also shared with him. He is a paid consultant for Blueprint Medicines, Celldex Therapeutics, Invea, Third Harmonic Bio, HYCOR Biomedical, Jasper, TerSera Therapeutics, and GLG. He also serves on an AstraZeneca data safety monitoring board for a clinical trial involving benralizumab treatment of hypereosinophilic syndrome and receives royalties from UpToDate (biomarkers for anaphylaxis) and Goldman-Cecil Medicine (anaphylaxis).

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

A 1-year course of methotrexate (MTX) in clinically suspected arthralgia may prevent the development of rheumatoid arthritis (RA) in at-risk individuals who test negative for anti-citrullinated protein antibody (ACPA), according to 4-year results from the TREAT EARLIER study.

While 2-year data did not show a preventive effect, researchers risk-stratified patients in this most recent data. The previous study also grouped all individuals together, while this new analysis separated patients by seropositivity.

“Heterogeneity in risk of rheumatoid arthritis development in ACPA–negative participants with clinically suspect arthralgia might have concealed a treatment effect due to dilution,” wrote senior author Annette H. van der Helm-van Mil, MD, PhD, professor of rheumatology at Leiden University Medical Center, Leiden, the Netherlands, and colleagues. “Therefore, risk-stratified analyses are required to adequately assess the possibility of prevention of rheumatoid arthritis in people with clinically suspect arthralgia who are ACPA–negative.”

Leiden University

To qualify for the study, participants needed to have recent-onset joint pain that a treating rheumatologist suspected of progressing to RA. Second, participants had to have subclinical joint inflammation, detected via MRI.

These are “promising results” for a group where predicting risk for RA has been more difficult than for their ACPA–positive counterparts, said Kevin Deane, MD, PhD, a professor of medicine and rheumatologist at the University of Colorado School of Medicine, Aurora, who was not involved with the study. However, additional research is necessary to investigate these findings.

The clinical utility of this finding is also unclear, he noted, as it would be an “extensive process” for all ACPA–negative individuals with joint pain to undergo MRI screening, he continued.

“It’s hard to find people who would meet these criteria, and healthcare systems need to understand how ultimately this could be implemented in clinical care,” he said.
 

Adding Risk Stratification

The TREAT EARLIER trial included 236 participants; nearly two thirds were women, and 77% were ACPA–negative (specifically for anti-cyclic citrullinated peptide 2). Patients randomly assigned to active treatment received a single intramuscular glucocorticoid injection (methylprednisolone 120 mg) upon inclusion and then completed a 1-year course of MTX. The comparator group received a single placebo injection at the beginning of the trial and a 1-year course of placebo tablets. All trial screenings and visits were conducted at the Leiden University Medical Center.

At the 2-year mark, there was no difference in the development of RA between the treatment and placebo groups, although there was improvement in joint pain, physical functioning, and MRI-detected joint inflammation in all at-risk groups given MTX — ACPA–positive patients and those at high risk for clinical arthritis development.

MTX delayed the onset of RA, with a statistically significant difference between treatment and placebo at 6 and 12 months, but not at 24 months.

For this 4-year analysis, published in The Lancet Rheumatology, authors stratified patients at their time of enrollment according to their risk of developing RA based on a published model for predicting inflammatory arthritis. Predictors included ACPA positivity (2 points), rheumatoid factor positivity (1 point), more than two locations of subclinical inflammation on MRI (2 points), and presence of metacarpophalangeal extensor tenosynovitis on MRI (1 point).

Patients with at least 4 points were classified as “high-risk,” with a 70% or higher predicted risk of developing RA. Participants with 2-3 points were at “increased risk” — translating to a 25%-70% higher likelihood of developing the condition. Low-risk patients, with 0-1 points, had < 25% chance of developing RA.

Of the 182 ACPA–negative participants in the study, none were considered high risk, 66 (36%) were at increased risk, and 116 (64%) were at low risk.
 

Decreased Rates of RA Development

Of these ACPA–negative patients stratified as increased risk, 3 of 35 (9%) in the treatment group developed RA, compared with 9 of 31 (29%) in the placebo arm (hazard ratio [HR], 0.27; P = .034).

All 54 ACPA–positive patients enrolled in the study were classified as either increased risk or high risk, but the treatment showed no difference in the rate of RA development in this group, and more than half (56%) developed RA during 4 years of follow-up. However, Dr. van der Helm-van Mil noted that the 2-year data showed treatment improved the severity of subclinical inflammation and symptoms over time in these patients.

The 5-year data from the trial, including physical function and other measures of disease burden, will be analyzed in 2025, she said, and will reveal whether ACPA–negative patients treated with MTX had sustained improvements in these measures.

Additional studies are needed to validate these findings, Dr. van der Helm-van Mil said, but the results indicate that ACPA–positive and ACPA–negative patients “are different populations, and we should evaluate them separately.”

Future RA prevention studies should also risk stratify patients before enrollment so that patients at low risk of developing the disease are not included in the interventions. “You can’t expect a treatment effect if there is no risk for disease,” she added.
 

Is It Cost-Effective?

In a separate analysis, published in Annals of the Rheumatic Diseases, Dr. van der Helm-van Mil and colleagues sought to investigate the cost-effectiveness of the TREAT EARLIER intervention at 2 years of follow-up.

“There is an ongoing debate whether people with arthralgia at risk for RA should be treated with DMARDs [disease-modifying antirheumatic drugs]; however, the economic effects of an intervention in the arthralgia at risk phase are unknown.”

The analysis calculated healthcare productivity and work productivity costs from enrollment to 2 years of follow-up. To demonstrate effect, they also calculated change in quality-adjusted life years (QALYs).

Over the course of 2 years, estimated costs for the treatment arm were €4809 lower (−$5304) than the placebo arm per patient. Lower productivity costs accounted for 97% of this difference.

The treatment arm also resulted in a small improvement (+0.041) in QALYs, compared with placebo.

“These data provide the first evidence that first-line treatment aiming at secondary prevention in arthralgia at-risk for RA is cost-effective,” the authors wrote.

Dr. van der Helm-van Mil emphasized that this cost analysis used only 2-year follow-up data (rather than the newly published 4-year data) and did not differentiate ACPA–negative patients. Despite including a greater heterogeneity of patients, the intervention was still cost-effective. A future analysis that includes 5-year follow-up data and stratifies patients by ACPA status and excludes low-risk individuals could demonstrate more cost benefits to a temporary MTX regimen, she said.

Considering the costs of these preventive interventions is important, added Dr. Deane, who agreed that future analyses should examine cost-effectiveness in groups at high risk of developing RA. (Dr. Deane noted that he had reviewed this article for publication.) However, this analysis did not include the costs of screening patients before enrollment in the study.

Richard Mark Kirkner/MDedge News

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

A 1-year course of methotrexate (MTX) in clinically suspected arthralgia may prevent the development of rheumatoid arthritis (RA) in at-risk individuals who test negative for anti-citrullinated protein antibody (ACPA), according to 4-year results from the TREAT EARLIER study.

While 2-year data did not show a preventive effect, researchers risk-stratified patients in this most recent data. The previous study also grouped all individuals together, while this new analysis separated patients by seropositivity.

“Heterogeneity in risk of rheumatoid arthritis development in ACPA–negative participants with clinically suspect arthralgia might have concealed a treatment effect due to dilution,” wrote senior author Annette H. van der Helm-van Mil, MD, PhD, professor of rheumatology at Leiden University Medical Center, Leiden, the Netherlands, and colleagues. “Therefore, risk-stratified analyses are required to adequately assess the possibility of prevention of rheumatoid arthritis in people with clinically suspect arthralgia who are ACPA–negative.”

Leiden University

To qualify for the study, participants needed to have recent-onset joint pain that a treating rheumatologist suspected of progressing to RA. Second, participants had to have subclinical joint inflammation, detected via MRI.

These are “promising results” for a group where predicting risk for RA has been more difficult than for their ACPA–positive counterparts, said Kevin Deane, MD, PhD, a professor of medicine and rheumatologist at the University of Colorado School of Medicine, Aurora, who was not involved with the study. However, additional research is necessary to investigate these findings.

The clinical utility of this finding is also unclear, he noted, as it would be an “extensive process” for all ACPA–negative individuals with joint pain to undergo MRI screening, he continued.

“It’s hard to find people who would meet these criteria, and healthcare systems need to understand how ultimately this could be implemented in clinical care,” he said.
 

Adding Risk Stratification

The TREAT EARLIER trial included 236 participants; nearly two thirds were women, and 77% were ACPA–negative (specifically for anti-cyclic citrullinated peptide 2). Patients randomly assigned to active treatment received a single intramuscular glucocorticoid injection (methylprednisolone 120 mg) upon inclusion and then completed a 1-year course of MTX. The comparator group received a single placebo injection at the beginning of the trial and a 1-year course of placebo tablets. All trial screenings and visits were conducted at the Leiden University Medical Center.

At the 2-year mark, there was no difference in the development of RA between the treatment and placebo groups, although there was improvement in joint pain, physical functioning, and MRI-detected joint inflammation in all at-risk groups given MTX — ACPA–positive patients and those at high risk for clinical arthritis development.

MTX delayed the onset of RA, with a statistically significant difference between treatment and placebo at 6 and 12 months, but not at 24 months.

For this 4-year analysis, published in The Lancet Rheumatology, authors stratified patients at their time of enrollment according to their risk of developing RA based on a published model for predicting inflammatory arthritis. Predictors included ACPA positivity (2 points), rheumatoid factor positivity (1 point), more than two locations of subclinical inflammation on MRI (2 points), and presence of metacarpophalangeal extensor tenosynovitis on MRI (1 point).

Patients with at least 4 points were classified as “high-risk,” with a 70% or higher predicted risk of developing RA. Participants with 2-3 points were at “increased risk” — translating to a 25%-70% higher likelihood of developing the condition. Low-risk patients, with 0-1 points, had < 25% chance of developing RA.

Of the 182 ACPA–negative participants in the study, none were considered high risk, 66 (36%) were at increased risk, and 116 (64%) were at low risk.
 

Decreased Rates of RA Development

Of these ACPA–negative patients stratified as increased risk, 3 of 35 (9%) in the treatment group developed RA, compared with 9 of 31 (29%) in the placebo arm (hazard ratio [HR], 0.27; P = .034).

All 54 ACPA–positive patients enrolled in the study were classified as either increased risk or high risk, but the treatment showed no difference in the rate of RA development in this group, and more than half (56%) developed RA during 4 years of follow-up. However, Dr. van der Helm-van Mil noted that the 2-year data showed treatment improved the severity of subclinical inflammation and symptoms over time in these patients.

The 5-year data from the trial, including physical function and other measures of disease burden, will be analyzed in 2025, she said, and will reveal whether ACPA–negative patients treated with MTX had sustained improvements in these measures.

Additional studies are needed to validate these findings, Dr. van der Helm-van Mil said, but the results indicate that ACPA–positive and ACPA–negative patients “are different populations, and we should evaluate them separately.”

Future RA prevention studies should also risk stratify patients before enrollment so that patients at low risk of developing the disease are not included in the interventions. “You can’t expect a treatment effect if there is no risk for disease,” she added.
 

Is It Cost-Effective?

In a separate analysis, published in Annals of the Rheumatic Diseases, Dr. van der Helm-van Mil and colleagues sought to investigate the cost-effectiveness of the TREAT EARLIER intervention at 2 years of follow-up.

“There is an ongoing debate whether people with arthralgia at risk for RA should be treated with DMARDs [disease-modifying antirheumatic drugs]; however, the economic effects of an intervention in the arthralgia at risk phase are unknown.”

The analysis calculated healthcare productivity and work productivity costs from enrollment to 2 years of follow-up. To demonstrate effect, they also calculated change in quality-adjusted life years (QALYs).

Over the course of 2 years, estimated costs for the treatment arm were €4809 lower (−$5304) than the placebo arm per patient. Lower productivity costs accounted for 97% of this difference.

The treatment arm also resulted in a small improvement (+0.041) in QALYs, compared with placebo.

“These data provide the first evidence that first-line treatment aiming at secondary prevention in arthralgia at-risk for RA is cost-effective,” the authors wrote.

Dr. van der Helm-van Mil emphasized that this cost analysis used only 2-year follow-up data (rather than the newly published 4-year data) and did not differentiate ACPA–negative patients. Despite including a greater heterogeneity of patients, the intervention was still cost-effective. A future analysis that includes 5-year follow-up data and stratifies patients by ACPA status and excludes low-risk individuals could demonstrate more cost benefits to a temporary MTX regimen, she said.

Considering the costs of these preventive interventions is important, added Dr. Deane, who agreed that future analyses should examine cost-effectiveness in groups at high risk of developing RA. (Dr. Deane noted that he had reviewed this article for publication.) However, this analysis did not include the costs of screening patients before enrollment in the study.

Richard Mark Kirkner/MDedge News

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

A 1-year course of methotrexate (MTX) in clinically suspected arthralgia may prevent the development of rheumatoid arthritis (RA) in at-risk individuals who test negative for anti-citrullinated protein antibody (ACPA), according to 4-year results from the TREAT EARLIER study.

While 2-year data did not show a preventive effect, researchers risk-stratified patients in this most recent data. The previous study also grouped all individuals together, while this new analysis separated patients by seropositivity.

“Heterogeneity in risk of rheumatoid arthritis development in ACPA–negative participants with clinically suspect arthralgia might have concealed a treatment effect due to dilution,” wrote senior author Annette H. van der Helm-van Mil, MD, PhD, professor of rheumatology at Leiden University Medical Center, Leiden, the Netherlands, and colleagues. “Therefore, risk-stratified analyses are required to adequately assess the possibility of prevention of rheumatoid arthritis in people with clinically suspect arthralgia who are ACPA–negative.”

Leiden University

To qualify for the study, participants needed to have recent-onset joint pain that a treating rheumatologist suspected of progressing to RA. Second, participants had to have subclinical joint inflammation, detected via MRI.

These are “promising results” for a group where predicting risk for RA has been more difficult than for their ACPA–positive counterparts, said Kevin Deane, MD, PhD, a professor of medicine and rheumatologist at the University of Colorado School of Medicine, Aurora, who was not involved with the study. However, additional research is necessary to investigate these findings.

The clinical utility of this finding is also unclear, he noted, as it would be an “extensive process” for all ACPA–negative individuals with joint pain to undergo MRI screening, he continued.

“It’s hard to find people who would meet these criteria, and healthcare systems need to understand how ultimately this could be implemented in clinical care,” he said.
 

Adding Risk Stratification

The TREAT EARLIER trial included 236 participants; nearly two thirds were women, and 77% were ACPA–negative (specifically for anti-cyclic citrullinated peptide 2). Patients randomly assigned to active treatment received a single intramuscular glucocorticoid injection (methylprednisolone 120 mg) upon inclusion and then completed a 1-year course of MTX. The comparator group received a single placebo injection at the beginning of the trial and a 1-year course of placebo tablets. All trial screenings and visits were conducted at the Leiden University Medical Center.

At the 2-year mark, there was no difference in the development of RA between the treatment and placebo groups, although there was improvement in joint pain, physical functioning, and MRI-detected joint inflammation in all at-risk groups given MTX — ACPA–positive patients and those at high risk for clinical arthritis development.

MTX delayed the onset of RA, with a statistically significant difference between treatment and placebo at 6 and 12 months, but not at 24 months.

For this 4-year analysis, published in The Lancet Rheumatology, authors stratified patients at their time of enrollment according to their risk of developing RA based on a published model for predicting inflammatory arthritis. Predictors included ACPA positivity (2 points), rheumatoid factor positivity (1 point), more than two locations of subclinical inflammation on MRI (2 points), and presence of metacarpophalangeal extensor tenosynovitis on MRI (1 point).

Patients with at least 4 points were classified as “high-risk,” with a 70% or higher predicted risk of developing RA. Participants with 2-3 points were at “increased risk” — translating to a 25%-70% higher likelihood of developing the condition. Low-risk patients, with 0-1 points, had < 25% chance of developing RA.

Of the 182 ACPA–negative participants in the study, none were considered high risk, 66 (36%) were at increased risk, and 116 (64%) were at low risk.
 

Decreased Rates of RA Development

Of these ACPA–negative patients stratified as increased risk, 3 of 35 (9%) in the treatment group developed RA, compared with 9 of 31 (29%) in the placebo arm (hazard ratio [HR], 0.27; P = .034).

All 54 ACPA–positive patients enrolled in the study were classified as either increased risk or high risk, but the treatment showed no difference in the rate of RA development in this group, and more than half (56%) developed RA during 4 years of follow-up. However, Dr. van der Helm-van Mil noted that the 2-year data showed treatment improved the severity of subclinical inflammation and symptoms over time in these patients.

The 5-year data from the trial, including physical function and other measures of disease burden, will be analyzed in 2025, she said, and will reveal whether ACPA–negative patients treated with MTX had sustained improvements in these measures.

Additional studies are needed to validate these findings, Dr. van der Helm-van Mil said, but the results indicate that ACPA–positive and ACPA–negative patients “are different populations, and we should evaluate them separately.”

Future RA prevention studies should also risk stratify patients before enrollment so that patients at low risk of developing the disease are not included in the interventions. “You can’t expect a treatment effect if there is no risk for disease,” she added.
 

Is It Cost-Effective?

In a separate analysis, published in Annals of the Rheumatic Diseases, Dr. van der Helm-van Mil and colleagues sought to investigate the cost-effectiveness of the TREAT EARLIER intervention at 2 years of follow-up.

“There is an ongoing debate whether people with arthralgia at risk for RA should be treated with DMARDs [disease-modifying antirheumatic drugs]; however, the economic effects of an intervention in the arthralgia at risk phase are unknown.”

The analysis calculated healthcare productivity and work productivity costs from enrollment to 2 years of follow-up. To demonstrate effect, they also calculated change in quality-adjusted life years (QALYs).

Over the course of 2 years, estimated costs for the treatment arm were €4809 lower (−$5304) than the placebo arm per patient. Lower productivity costs accounted for 97% of this difference.

The treatment arm also resulted in a small improvement (+0.041) in QALYs, compared with placebo.

“These data provide the first evidence that first-line treatment aiming at secondary prevention in arthralgia at-risk for RA is cost-effective,” the authors wrote.

Dr. van der Helm-van Mil emphasized that this cost analysis used only 2-year follow-up data (rather than the newly published 4-year data) and did not differentiate ACPA–negative patients. Despite including a greater heterogeneity of patients, the intervention was still cost-effective. A future analysis that includes 5-year follow-up data and stratifies patients by ACPA status and excludes low-risk individuals could demonstrate more cost benefits to a temporary MTX regimen, she said.

Considering the costs of these preventive interventions is important, added Dr. Deane, who agreed that future analyses should examine cost-effectiveness in groups at high risk of developing RA. (Dr. Deane noted that he had reviewed this article for publication.) However, this analysis did not include the costs of screening patients before enrollment in the study.

Richard Mark Kirkner/MDedge News

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

TOPLINE:

A higher rate of weight loss within 1 year of initiating orlistat is associated with lower risks for incident gout and recurrent gout flares in individuals with body mass index (BMI) > 25, particularly if they have obesity or high baseline serum urate levels.

METHODOLOGY:

• Researchers conducted a population-based cohort study using data from The Health Improvement Network in the United Kingdom to examine the association between weight loss rates after the initiation of anti-obesity medication (orlistat) and the risk for incident gout and recurrent gout flares in patients with overweight or obesity.
• The risk for incident gout was analyzed in 131,000 patients with overweight or obesity (mean age, 45 years; 77.3% women; mean BMI, 37.2) who did not have gout before initiating orlistat.
• The risk for recurrent gout flares was evaluated in 3847 individuals with overweight or obesity (mean age, 56.6 years; 29.4% women; mean BMI, 38.5), who had gout before initiating orlistat.
• Participants were divided into four groups based on their rate of weight loss during the first year of orlistat use: Weight gain or stable (< 2%), slow (2% to < 5%), moderate (5% to < 10%), and fast (≥ 10%).
• The primary outcome was incident gout, and the secondary outcome was the rate of recurrent gout flares during the 5-year follow-up period after initiating orlistat.

TAKEAWAY:

• The 5-year risk for incident gout was the lowest among patients in the fast weight loss group (1.2%) and highest among those in the weight gain or stable weight group (1.6%).
• The risk for incident gout was lower in the fast (hazard ratio [HR], 0.73; 95% CI, 0.62-0.86) and moderate (HR, 0.82; 95% CI, 0.72-0.92) weight loss groups than in the weight gain or stable weight group.
• Similarly, faster weight loss rates were linked to lower rates of recurrent gout flares, with risk ratios of 0.71 (95% CI, 0.60-0.84) and 0.83 (95% CI, 0.71-0.96) in the fast and moderate weight loss groups, respectively.
• This study found that weight loss after initiating orlistat was particularly beneficial for individuals with obesity and those with high baseline serum urate levels.

IN PRACTICE:

“Pharmacologic treatments, such as orlistat, present an alternative strategy for managing overweight and obesity. Our study provides empirical evidence of a dose-response effect of weight loss after initiating orlistat within 1 year lowers the risk of incident gout and recurrent gout flares,” the authors wrote.

SOURCE:

This study was led by Jie Wei, PhD, Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China, and was published online on September 19, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

Despite adjustment for many variables, factors such as disease severity, exercise levels, and diet were not fully captured, which might have influenced the results. The lack of hospitalization data could have resulted in recurrent gout flares being underreported. The current study may have been subjected to bias due to potential exposure misclassification resulting from the timing of weight measurements and missing updated weight data.

DISCLOSURES:

This study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, and other sources. No disclosures of interest were reported by the authors.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A higher rate of weight loss within 1 year of initiating orlistat is associated with lower risks for incident gout and recurrent gout flares in individuals with body mass index (BMI) > 25, particularly if they have obesity or high baseline serum urate levels.

METHODOLOGY:

• Researchers conducted a population-based cohort study using data from The Health Improvement Network in the United Kingdom to examine the association between weight loss rates after the initiation of anti-obesity medication (orlistat) and the risk for incident gout and recurrent gout flares in patients with overweight or obesity.
• The risk for incident gout was analyzed in 131,000 patients with overweight or obesity (mean age, 45 years; 77.3% women; mean BMI, 37.2) who did not have gout before initiating orlistat.
• The risk for recurrent gout flares was evaluated in 3847 individuals with overweight or obesity (mean age, 56.6 years; 29.4% women; mean BMI, 38.5), who had gout before initiating orlistat.
• Participants were divided into four groups based on their rate of weight loss during the first year of orlistat use: Weight gain or stable (< 2%), slow (2% to < 5%), moderate (5% to < 10%), and fast (≥ 10%).
• The primary outcome was incident gout, and the secondary outcome was the rate of recurrent gout flares during the 5-year follow-up period after initiating orlistat.

TAKEAWAY:

• The 5-year risk for incident gout was the lowest among patients in the fast weight loss group (1.2%) and highest among those in the weight gain or stable weight group (1.6%).
• The risk for incident gout was lower in the fast (hazard ratio [HR], 0.73; 95% CI, 0.62-0.86) and moderate (HR, 0.82; 95% CI, 0.72-0.92) weight loss groups than in the weight gain or stable weight group.
• Similarly, faster weight loss rates were linked to lower rates of recurrent gout flares, with risk ratios of 0.71 (95% CI, 0.60-0.84) and 0.83 (95% CI, 0.71-0.96) in the fast and moderate weight loss groups, respectively.
• This study found that weight loss after initiating orlistat was particularly beneficial for individuals with obesity and those with high baseline serum urate levels.

IN PRACTICE:

“Pharmacologic treatments, such as orlistat, present an alternative strategy for managing overweight and obesity. Our study provides empirical evidence of a dose-response effect of weight loss after initiating orlistat within 1 year lowers the risk of incident gout and recurrent gout flares,” the authors wrote.

SOURCE:

This study was led by Jie Wei, PhD, Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China, and was published online on September 19, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

Despite adjustment for many variables, factors such as disease severity, exercise levels, and diet were not fully captured, which might have influenced the results. The lack of hospitalization data could have resulted in recurrent gout flares being underreported. The current study may have been subjected to bias due to potential exposure misclassification resulting from the timing of weight measurements and missing updated weight data.

DISCLOSURES:

This study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, and other sources. No disclosures of interest were reported by the authors.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

A higher rate of weight loss within 1 year of initiating orlistat is associated with lower risks for incident gout and recurrent gout flares in individuals with body mass index (BMI) > 25, particularly if they have obesity or high baseline serum urate levels.

METHODOLOGY:

• Researchers conducted a population-based cohort study using data from The Health Improvement Network in the United Kingdom to examine the association between weight loss rates after the initiation of anti-obesity medication (orlistat) and the risk for incident gout and recurrent gout flares in patients with overweight or obesity.
• The risk for incident gout was analyzed in 131,000 patients with overweight or obesity (mean age, 45 years; 77.3% women; mean BMI, 37.2) who did not have gout before initiating orlistat.
• The risk for recurrent gout flares was evaluated in 3847 individuals with overweight or obesity (mean age, 56.6 years; 29.4% women; mean BMI, 38.5), who had gout before initiating orlistat.
• Participants were divided into four groups based on their rate of weight loss during the first year of orlistat use: Weight gain or stable (< 2%), slow (2% to < 5%), moderate (5% to < 10%), and fast (≥ 10%).
• The primary outcome was incident gout, and the secondary outcome was the rate of recurrent gout flares during the 5-year follow-up period after initiating orlistat.

TAKEAWAY:

• The 5-year risk for incident gout was the lowest among patients in the fast weight loss group (1.2%) and highest among those in the weight gain or stable weight group (1.6%).
• The risk for incident gout was lower in the fast (hazard ratio [HR], 0.73; 95% CI, 0.62-0.86) and moderate (HR, 0.82; 95% CI, 0.72-0.92) weight loss groups than in the weight gain or stable weight group.
• Similarly, faster weight loss rates were linked to lower rates of recurrent gout flares, with risk ratios of 0.71 (95% CI, 0.60-0.84) and 0.83 (95% CI, 0.71-0.96) in the fast and moderate weight loss groups, respectively.
• This study found that weight loss after initiating orlistat was particularly beneficial for individuals with obesity and those with high baseline serum urate levels.

IN PRACTICE:

“Pharmacologic treatments, such as orlistat, present an alternative strategy for managing overweight and obesity. Our study provides empirical evidence of a dose-response effect of weight loss after initiating orlistat within 1 year lowers the risk of incident gout and recurrent gout flares,” the authors wrote.

SOURCE:

This study was led by Jie Wei, PhD, Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China, and was published online on September 19, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

Despite adjustment for many variables, factors such as disease severity, exercise levels, and diet were not fully captured, which might have influenced the results. The lack of hospitalization data could have resulted in recurrent gout flares being underreported. The current study may have been subjected to bias due to potential exposure misclassification resulting from the timing of weight measurements and missing updated weight data.

DISCLOSURES:

This study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, and other sources. No disclosures of interest were reported by the authors.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved ustekinumab-aauz (Otulfi), a biosimilar that references Johnson & Johnson’s ustekinumab (Stelara).

This is the fourth ustekinumab biosimilar approved in the United States. Like the reference product, ustekinumab-aauz is indicated for:

• Patients 6 years or older with moderate to severe plaque psoriasis who are candidates for phototherapy or systemic therapy
• Patients 6 years or older with active psoriatic arthritis
• Adult patients with moderately to severely active Crohn’s disease
• Adult patients with moderately to severely active ulcerative colitis

Ustekinumab-aauz, produced by a partnership between Fresenius Kabi and Formycon, has two formulations: subcutaneous injection (45 mg/0.5 mL or 90 mg/mL solution in a single-dose prefilled syringe) or intravenous infusion (130 mg/26 mL solution in a single-dose vial).

The biosimilar will launch in the United States “no later than February 22, 2025,” according to the press release, “in accordance with the patent settlement between Fresenius Kabi, Formycon, and Johnson & Johnson.”

Ustekinumab-aauz is Fresenius Kabi’s fourth biosimilar granted US approval, behind adalimumab-aacf (Idacio), tocilizumab-aazg (Tyenne), and pegfilgrastim-fpgk (Stimufend).

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

The Food and Drug Administration has approved ustekinumab-aauz (Otulfi), a biosimilar that references Johnson & Johnson’s ustekinumab (Stelara).

This is the fourth ustekinumab biosimilar approved in the United States. Like the reference product, ustekinumab-aauz is indicated for:

• Patients 6 years or older with moderate to severe plaque psoriasis who are candidates for phototherapy or systemic therapy
• Patients 6 years or older with active psoriatic arthritis
• Adult patients with moderately to severely active Crohn’s disease
• Adult patients with moderately to severely active ulcerative colitis

Ustekinumab-aauz, produced by a partnership between Fresenius Kabi and Formycon, has two formulations: subcutaneous injection (45 mg/0.5 mL or 90 mg/mL solution in a single-dose prefilled syringe) or intravenous infusion (130 mg/26 mL solution in a single-dose vial).

The biosimilar will launch in the United States “no later than February 22, 2025,” according to the press release, “in accordance with the patent settlement between Fresenius Kabi, Formycon, and Johnson & Johnson.”

Ustekinumab-aauz is Fresenius Kabi’s fourth biosimilar granted US approval, behind adalimumab-aacf (Idacio), tocilizumab-aazg (Tyenne), and pegfilgrastim-fpgk (Stimufend).

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

The Food and Drug Administration has approved ustekinumab-aauz (Otulfi), a biosimilar that references Johnson & Johnson’s ustekinumab (Stelara).

This is the fourth ustekinumab biosimilar approved in the United States. Like the reference product, ustekinumab-aauz is indicated for:

• Patients 6 years or older with moderate to severe plaque psoriasis who are candidates for phototherapy or systemic therapy
• Patients 6 years or older with active psoriatic arthritis
• Adult patients with moderately to severely active Crohn’s disease
• Adult patients with moderately to severely active ulcerative colitis

Ustekinumab-aauz, produced by a partnership between Fresenius Kabi and Formycon, has two formulations: subcutaneous injection (45 mg/0.5 mL or 90 mg/mL solution in a single-dose prefilled syringe) or intravenous infusion (130 mg/26 mL solution in a single-dose vial).

The biosimilar will launch in the United States “no later than February 22, 2025,” according to the press release, “in accordance with the patent settlement between Fresenius Kabi, Formycon, and Johnson & Johnson.”

Ustekinumab-aauz is Fresenius Kabi’s fourth biosimilar granted US approval, behind adalimumab-aacf (Idacio), tocilizumab-aazg (Tyenne), and pegfilgrastim-fpgk (Stimufend).

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

TOPLINE: 

Women with premature ovarian insufficiency (POI) have a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis and a 2- to 3-fold increased risk for these diseases after diagnosis.
 

METHODOLOGY:

• Researchers conducted a population-based registry study including 3972 women diagnosed with spontaneous POI between 1988 and 2017.
• A total of 15,708 female population controls matched by age and municipality of residence were included for comparison.
• Autoimmune disease diagnoses were evaluated from childhood until the end of 2017 using the Hospital Discharge Registry.
• Women with a history of cancer or bilateral oophorectomy were excluded from the study.

TAKEAWAY:

• Women with POI had a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis compared to controls (odds ratio [OR], 2.6; 95% CI, 2.2-3.1).
• The prevalence of specific autoimmune diseases such as polyglandular autoimmune diseases (OR, 25.8; 95% CI, 9.0-74.1) and Addison disease (OR, 22.9; 95% CI, 7.9-66.1) was significantly higher in women with POI.
• The standardized incidence ratios for being diagnosed with a severe autoimmune disease after POI diagnosis was 2.8 (95% CI, 2.3-3.4) during the first 3 years, decreasing to 1.3 (95% CI, 1.1-1.6) after 12 years.
• No significant difference was found in the prevalence of diabetes type 1 and ankylosing spondylitis between women with POI and the reference cohort.

IN PRACTICE:

“The study results strengthen the hypothesis that autoimmune mechanisms play an important role in the pathogenesis of POI. Future studies should focus on the immunological mechanism of POI from preventative and curative perspectives,” wrote the authors of the study.

SOURCE:

The study was led by Susanna M. Savukoski, Oulu University Hospital in Finland. It was published online in Human Reproduction.

LIMITATIONS: 

The study included only autoimmune disorders diagnosed in specialized health care, which may underestimate the overall prevalence of autoimmune disorders in women with POI. Additionally, the study did not account for confounders such as body mass index and smoking, which are associated with the risk for autoimmune disease and POI.

DISCLOSURES:

Ms. Savukoski received grants from the Finnish Menopause Society, the Finnish Medical Foundation, and the Juho Vainio Foundation. Additional disclosures are noted in the original article. 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE: 

Women with premature ovarian insufficiency (POI) have a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis and a 2- to 3-fold increased risk for these diseases after diagnosis.
 

METHODOLOGY:

• Researchers conducted a population-based registry study including 3972 women diagnosed with spontaneous POI between 1988 and 2017.
• A total of 15,708 female population controls matched by age and municipality of residence were included for comparison.
• Autoimmune disease diagnoses were evaluated from childhood until the end of 2017 using the Hospital Discharge Registry.
• Women with a history of cancer or bilateral oophorectomy were excluded from the study.

TAKEAWAY:

• Women with POI had a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis compared to controls (odds ratio [OR], 2.6; 95% CI, 2.2-3.1).
• The prevalence of specific autoimmune diseases such as polyglandular autoimmune diseases (OR, 25.8; 95% CI, 9.0-74.1) and Addison disease (OR, 22.9; 95% CI, 7.9-66.1) was significantly higher in women with POI.
• The standardized incidence ratios for being diagnosed with a severe autoimmune disease after POI diagnosis was 2.8 (95% CI, 2.3-3.4) during the first 3 years, decreasing to 1.3 (95% CI, 1.1-1.6) after 12 years.
• No significant difference was found in the prevalence of diabetes type 1 and ankylosing spondylitis between women with POI and the reference cohort.

IN PRACTICE:

“The study results strengthen the hypothesis that autoimmune mechanisms play an important role in the pathogenesis of POI. Future studies should focus on the immunological mechanism of POI from preventative and curative perspectives,” wrote the authors of the study.

SOURCE:

The study was led by Susanna M. Savukoski, Oulu University Hospital in Finland. It was published online in Human Reproduction.

LIMITATIONS: 

The study included only autoimmune disorders diagnosed in specialized health care, which may underestimate the overall prevalence of autoimmune disorders in women with POI. Additionally, the study did not account for confounders such as body mass index and smoking, which are associated with the risk for autoimmune disease and POI.

DISCLOSURES:

Ms. Savukoski received grants from the Finnish Menopause Society, the Finnish Medical Foundation, and the Juho Vainio Foundation. Additional disclosures are noted in the original article. 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE: 

Women with premature ovarian insufficiency (POI) have a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis and a 2- to 3-fold increased risk for these diseases after diagnosis.
 

METHODOLOGY:

• Researchers conducted a population-based registry study including 3972 women diagnosed with spontaneous POI between 1988 and 2017.
• A total of 15,708 female population controls matched by age and municipality of residence were included for comparison.
• Autoimmune disease diagnoses were evaluated from childhood until the end of 2017 using the Hospital Discharge Registry.
• Women with a history of cancer or bilateral oophorectomy were excluded from the study.

TAKEAWAY:

• Women with POI had a 2.6 times higher prevalence of severe autoimmune diseases before diagnosis compared to controls (odds ratio [OR], 2.6; 95% CI, 2.2-3.1).
• The prevalence of specific autoimmune diseases such as polyglandular autoimmune diseases (OR, 25.8; 95% CI, 9.0-74.1) and Addison disease (OR, 22.9; 95% CI, 7.9-66.1) was significantly higher in women with POI.
• The standardized incidence ratios for being diagnosed with a severe autoimmune disease after POI diagnosis was 2.8 (95% CI, 2.3-3.4) during the first 3 years, decreasing to 1.3 (95% CI, 1.1-1.6) after 12 years.
• No significant difference was found in the prevalence of diabetes type 1 and ankylosing spondylitis between women with POI and the reference cohort.

IN PRACTICE:

“The study results strengthen the hypothesis that autoimmune mechanisms play an important role in the pathogenesis of POI. Future studies should focus on the immunological mechanism of POI from preventative and curative perspectives,” wrote the authors of the study.

SOURCE:

The study was led by Susanna M. Savukoski, Oulu University Hospital in Finland. It was published online in Human Reproduction.

LIMITATIONS: 

The study included only autoimmune disorders diagnosed in specialized health care, which may underestimate the overall prevalence of autoimmune disorders in women with POI. Additionally, the study did not account for confounders such as body mass index and smoking, which are associated with the risk for autoimmune disease and POI.

DISCLOSURES:

Ms. Savukoski received grants from the Finnish Menopause Society, the Finnish Medical Foundation, and the Juho Vainio Foundation. Additional disclosures are noted in the original article. 

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

A noninvasive eye test could help people with Sjögren disease — a disorder that can go undiagnosed for years — get relief sooner, suggested a pilot study published in Therapeutic Advances in Musculoskeletal Disease.

Researchers led by Jing Wu, Department of Ophthalmology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, and colleagues used infrared imaging to detect atrophy of the oil-producing meibomian glands, which lubricate the eyelids and eyes, in 56 patients with suspected Sjögren disease. The test can be administered by an eye care practitioner using a Keratograph 5M machine. Patients also underwent salivary gland biopsies to detect Sjögren disease.

A total of 34 patients diagnosed with primary Sjögren disease had more significant atrophy and shortening of the meibomian glands in their upper eyelids than 22 patients with other types of dry eye who served as control patients. The accuracy of temporal and total meibomian gland dysfunction dropout rates in the upper eyelids to predict primary Sjögren disease classification was good, with an area under the curve of 0.94 and 0.91, respectively.

“Sjögren’s-related dry eye is definitely inflammatory,” said Esen Akpek, MD, director of the Ocular Surface Disease and Dry Eye Clinic at Johns Hopkins Medicine, Baltimore, who was not involved with the study. “It starts as inflammation, and then the inflammation spreads to the meibomian glands, to the conjunctiva, cornea, and there will be other findings, like corneal ulcers, corneal melts, cyclitis, retinitis, optic neuritis, uveitis, all these inflammatory diseases of the eye could happen with Sjögren’s.”

With other types of dry eye, such as blepharitis or even meibomian gland dysfunction without Sjögren disease, inflammation is usually confined to the ocular surface, Akpek said. As a result, symptoms tend to be less severe and progressive.

The results of this small study need validation in a larger cohort, said Steven Carsons, MD, chief of the Division of Rheumatology at NYU Langone Hospital–Long Island, who was not involved with the study. In general, however, noninvasive alternatives to today’s tests for Sjögren disease could be useful for patients and physicians.

“The definitive diagnosis is a minor salivary glandular biopsy, which is invasive and isn’t really appealing to a lot of patients,” Dr. Carsons said. This test can also be difficult to access if patients don’t live near a medical center that specializes in Sjögren disease, he said.

“I think it’s everybody’s goal to have a noninvasive test be able, at some point, to replace biopsy,” Dr. Carsons said.

Then there are blood tests. “The other more objective test, the SSA antibodies, are not very specific for Sjögren’s syndrome,” he said. “They’re fairly sensitive, but can also be seen in other autoimmune conditions, particularly lupus.”

With existing tools, however, optometrists and ophthalmologists can do more to diagnose Sjögren disease early, Dr. Akpek said.

“The issue with Sjögren’s is not that there are no earlier diagnostic aids or anything like that,” Dr. Akpek said.

Lissamine green, a dye that stains degraded cells on the eye’s surface, can reveal clues in young adult patients before other signs. “In my opinion, the earliest clinical finding that indicates presence of the disease is lissamine green staining of conjunctiva,” Akpek said.

Meibomian gland imaging would detect the disease at a later point. “By the time you get meibomian gland dysfunction, there has been longer-standing inflammation,” she said.

Two challenges hold back diagnoses, she said. One is that many practitioners mistakenly believe Sjögren disease is just a nuisance even though it can threaten vision through ocular complications and have more far-reaching effects, too.

“There are a lot of extraglandular systemic manifestations of Sjögren’s that cause morbidity in these patients,” Dr. Akpek said. For example, Sjögren disease is associated with lymphoma and other malignancies, interstitial nephritis, autoimmune hepatitis, and interstitial lung disease with fibrosis.

The second challenge, she said, is that many ophthalmologists and optometrists assume rheumatologists will make the Sjögren disease diagnosis first and then refer patients to them. But eye doctors are well positioned to spot the first signs — if they look for them.

“When you complain of dry eye, unless the doctor puts certain dyes and takes a look at the surface with the dye staining, they can’t see that you are dry,” Dr. Akpek said.

Unfortunately, these tests are underutilized. “I’m sorry to say, dry eye testing, like clinical testing, is not very commonly done,” she said. “Dry eye is managed according to patient symptoms. A lot of the time, Sjögren’s patients have such severe dry eye that they don’t complain of dryness anymore because their corneas become numb.”

Another way to prevent diagnostic delay is to collaborate, communicate, and carefully review patient records shared by other specialists.

“Particularly because of the wide involvement of different organ systems, such as the eyes, the mouth with dental problems, and then systemic features, including joints, it really does need the cooperation of ophthalmologists, dental specialists, and rheumatologists — immunologists sometimes — to come together and make this diagnosis,” Dr. Carsons said.

The study was supported by grants from the National Natural Science Foundation of China. The authors had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

A noninvasive eye test could help people with Sjögren disease — a disorder that can go undiagnosed for years — get relief sooner, suggested a pilot study published in Therapeutic Advances in Musculoskeletal Disease.

Researchers led by Jing Wu, Department of Ophthalmology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, and colleagues used infrared imaging to detect atrophy of the oil-producing meibomian glands, which lubricate the eyelids and eyes, in 56 patients with suspected Sjögren disease. The test can be administered by an eye care practitioner using a Keratograph 5M machine. Patients also underwent salivary gland biopsies to detect Sjögren disease.

A total of 34 patients diagnosed with primary Sjögren disease had more significant atrophy and shortening of the meibomian glands in their upper eyelids than 22 patients with other types of dry eye who served as control patients. The accuracy of temporal and total meibomian gland dysfunction dropout rates in the upper eyelids to predict primary Sjögren disease classification was good, with an area under the curve of 0.94 and 0.91, respectively.

“Sjögren’s-related dry eye is definitely inflammatory,” said Esen Akpek, MD, director of the Ocular Surface Disease and Dry Eye Clinic at Johns Hopkins Medicine, Baltimore, who was not involved with the study. “It starts as inflammation, and then the inflammation spreads to the meibomian glands, to the conjunctiva, cornea, and there will be other findings, like corneal ulcers, corneal melts, cyclitis, retinitis, optic neuritis, uveitis, all these inflammatory diseases of the eye could happen with Sjögren’s.”

With other types of dry eye, such as blepharitis or even meibomian gland dysfunction without Sjögren disease, inflammation is usually confined to the ocular surface, Akpek said. As a result, symptoms tend to be less severe and progressive.

The results of this small study need validation in a larger cohort, said Steven Carsons, MD, chief of the Division of Rheumatology at NYU Langone Hospital–Long Island, who was not involved with the study. In general, however, noninvasive alternatives to today’s tests for Sjögren disease could be useful for patients and physicians.

“The definitive diagnosis is a minor salivary glandular biopsy, which is invasive and isn’t really appealing to a lot of patients,” Dr. Carsons said. This test can also be difficult to access if patients don’t live near a medical center that specializes in Sjögren disease, he said.

“I think it’s everybody’s goal to have a noninvasive test be able, at some point, to replace biopsy,” Dr. Carsons said.

Then there are blood tests. “The other more objective test, the SSA antibodies, are not very specific for Sjögren’s syndrome,” he said. “They’re fairly sensitive, but can also be seen in other autoimmune conditions, particularly lupus.”

With existing tools, however, optometrists and ophthalmologists can do more to diagnose Sjögren disease early, Dr. Akpek said.

“The issue with Sjögren’s is not that there are no earlier diagnostic aids or anything like that,” Dr. Akpek said.

Lissamine green, a dye that stains degraded cells on the eye’s surface, can reveal clues in young adult patients before other signs. “In my opinion, the earliest clinical finding that indicates presence of the disease is lissamine green staining of conjunctiva,” Akpek said.

Meibomian gland imaging would detect the disease at a later point. “By the time you get meibomian gland dysfunction, there has been longer-standing inflammation,” she said.

Two challenges hold back diagnoses, she said. One is that many practitioners mistakenly believe Sjögren disease is just a nuisance even though it can threaten vision through ocular complications and have more far-reaching effects, too.

“There are a lot of extraglandular systemic manifestations of Sjögren’s that cause morbidity in these patients,” Dr. Akpek said. For example, Sjögren disease is associated with lymphoma and other malignancies, interstitial nephritis, autoimmune hepatitis, and interstitial lung disease with fibrosis.

The second challenge, she said, is that many ophthalmologists and optometrists assume rheumatologists will make the Sjögren disease diagnosis first and then refer patients to them. But eye doctors are well positioned to spot the first signs — if they look for them.

“When you complain of dry eye, unless the doctor puts certain dyes and takes a look at the surface with the dye staining, they can’t see that you are dry,” Dr. Akpek said.

Unfortunately, these tests are underutilized. “I’m sorry to say, dry eye testing, like clinical testing, is not very commonly done,” she said. “Dry eye is managed according to patient symptoms. A lot of the time, Sjögren’s patients have such severe dry eye that they don’t complain of dryness anymore because their corneas become numb.”

Another way to prevent diagnostic delay is to collaborate, communicate, and carefully review patient records shared by other specialists.

“Particularly because of the wide involvement of different organ systems, such as the eyes, the mouth with dental problems, and then systemic features, including joints, it really does need the cooperation of ophthalmologists, dental specialists, and rheumatologists — immunologists sometimes — to come together and make this diagnosis,” Dr. Carsons said.

The study was supported by grants from the National Natural Science Foundation of China. The authors had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

A noninvasive eye test could help people with Sjögren disease — a disorder that can go undiagnosed for years — get relief sooner, suggested a pilot study published in Therapeutic Advances in Musculoskeletal Disease.

Researchers led by Jing Wu, Department of Ophthalmology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, and colleagues used infrared imaging to detect atrophy of the oil-producing meibomian glands, which lubricate the eyelids and eyes, in 56 patients with suspected Sjögren disease. The test can be administered by an eye care practitioner using a Keratograph 5M machine. Patients also underwent salivary gland biopsies to detect Sjögren disease.

A total of 34 patients diagnosed with primary Sjögren disease had more significant atrophy and shortening of the meibomian glands in their upper eyelids than 22 patients with other types of dry eye who served as control patients. The accuracy of temporal and total meibomian gland dysfunction dropout rates in the upper eyelids to predict primary Sjögren disease classification was good, with an area under the curve of 0.94 and 0.91, respectively.

“Sjögren’s-related dry eye is definitely inflammatory,” said Esen Akpek, MD, director of the Ocular Surface Disease and Dry Eye Clinic at Johns Hopkins Medicine, Baltimore, who was not involved with the study. “It starts as inflammation, and then the inflammation spreads to the meibomian glands, to the conjunctiva, cornea, and there will be other findings, like corneal ulcers, corneal melts, cyclitis, retinitis, optic neuritis, uveitis, all these inflammatory diseases of the eye could happen with Sjögren’s.”

With other types of dry eye, such as blepharitis or even meibomian gland dysfunction without Sjögren disease, inflammation is usually confined to the ocular surface, Akpek said. As a result, symptoms tend to be less severe and progressive.

The results of this small study need validation in a larger cohort, said Steven Carsons, MD, chief of the Division of Rheumatology at NYU Langone Hospital–Long Island, who was not involved with the study. In general, however, noninvasive alternatives to today’s tests for Sjögren disease could be useful for patients and physicians.

“The definitive diagnosis is a minor salivary glandular biopsy, which is invasive and isn’t really appealing to a lot of patients,” Dr. Carsons said. This test can also be difficult to access if patients don’t live near a medical center that specializes in Sjögren disease, he said.

“I think it’s everybody’s goal to have a noninvasive test be able, at some point, to replace biopsy,” Dr. Carsons said.

Then there are blood tests. “The other more objective test, the SSA antibodies, are not very specific for Sjögren’s syndrome,” he said. “They’re fairly sensitive, but can also be seen in other autoimmune conditions, particularly lupus.”

With existing tools, however, optometrists and ophthalmologists can do more to diagnose Sjögren disease early, Dr. Akpek said.

“The issue with Sjögren’s is not that there are no earlier diagnostic aids or anything like that,” Dr. Akpek said.

Lissamine green, a dye that stains degraded cells on the eye’s surface, can reveal clues in young adult patients before other signs. “In my opinion, the earliest clinical finding that indicates presence of the disease is lissamine green staining of conjunctiva,” Akpek said.

Meibomian gland imaging would detect the disease at a later point. “By the time you get meibomian gland dysfunction, there has been longer-standing inflammation,” she said.

Two challenges hold back diagnoses, she said. One is that many practitioners mistakenly believe Sjögren disease is just a nuisance even though it can threaten vision through ocular complications and have more far-reaching effects, too.

“There are a lot of extraglandular systemic manifestations of Sjögren’s that cause morbidity in these patients,” Dr. Akpek said. For example, Sjögren disease is associated with lymphoma and other malignancies, interstitial nephritis, autoimmune hepatitis, and interstitial lung disease with fibrosis.

The second challenge, she said, is that many ophthalmologists and optometrists assume rheumatologists will make the Sjögren disease diagnosis first and then refer patients to them. But eye doctors are well positioned to spot the first signs — if they look for them.

“When you complain of dry eye, unless the doctor puts certain dyes and takes a look at the surface with the dye staining, they can’t see that you are dry,” Dr. Akpek said.

Unfortunately, these tests are underutilized. “I’m sorry to say, dry eye testing, like clinical testing, is not very commonly done,” she said. “Dry eye is managed according to patient symptoms. A lot of the time, Sjögren’s patients have such severe dry eye that they don’t complain of dryness anymore because their corneas become numb.”

Another way to prevent diagnostic delay is to collaborate, communicate, and carefully review patient records shared by other specialists.

“Particularly because of the wide involvement of different organ systems, such as the eyes, the mouth with dental problems, and then systemic features, including joints, it really does need the cooperation of ophthalmologists, dental specialists, and rheumatologists — immunologists sometimes — to come together and make this diagnosis,” Dr. Carsons said.

The study was supported by grants from the National Natural Science Foundation of China. The authors had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

TOPLINE:

Older age, male sex, and seropositivity are linked to a higher risk for rheumatoid arthritis–interstitial lung disease (RA-ILD) with a usual interstitial pneumonia (UIP) pattern, while only seropositivity is associated with RA-ILD with a nonspecific interstitial pneumonia pattern (NSIP).

METHODOLOGY:

• Researchers conducted a case-control study using data from two cohorts in the Mass General Brigham Healthcare system to examine the risk factors associated with different subtypes of RA-ILD.
• They identified 208 patients with RA-ILD (mean age at RA diagnosis, 50.7 years; 67.3% women) and 547 control participants with RA but no ILD (mean age at RA diagnosis, 49.1 years; 78.1% women), who had high-resolution computed tomography (HRCT) imaging data available.
• RA-ILD subtypes such as RA-UIP, RA-NSIP, organizing pneumonia, and others were determined with HRCT scans.
• The associations between demographics, lifestyle, and serologic factors and RA-ILD subtypes were evaluated using multivariable logistic regression analysis.

TAKEAWAY:

• The RA-UIP subtype, the one with worst prognosis, was associated with older age during the time of RA diagnosis (odds ratio [OR], 1.03 per year; 95% CI, 1.01-1.05), male sex (OR, 2.15; 95% CI, 1.33-3.48), and seropositivity (OR, 2.08; 95% CI, 1.24-3.48).
• On the other hand, the RA-NSIP subtype was significantly associated only with seropositivity (OR, 3.21; 95% CI, 1.36-7.56).
• Nonfibrotic ILDs were significantly associated with positive smoking status (OR, 2.81; 95% CI, 1.52-5.21) and seropositivity (OR, 2.09; 95% CI, 1.19-3.67).
• The combination of male sex, seropositivity, and positive smoking status was associated with a nearly sevenfold increased risk for RA-UIP (OR, 6.89; 95% CI, 2.41-19.69), compared with having no RA-ILD risk factors.

IN PRACTICE:

“These findings suggest that RA-ILD subtypes may have distinct risk factor profiles and emphasize the importance of further efforts to understand RA-ILD disease heterogeneity to inform screening and prognostication strategies,” the authors wrote.

SOURCE:

The study was led by Gregory C. McDermott, MD, MPH, Brigham and Women’s Hospital, Boston, and was published online on September 11, 2024, in Arthritis Care & Research.

LIMITATIONS:

This study relied on HRCT imaging, which may have introduced selection bias within the control groups. RA disease activity measures were not available for the Mass General Brigham Biobank RA cohort, which limited the analysis of the influence of disease activity on the risk for RA-ILD. Both cohorts predominantly involved White patients, which may have limited the generalizability of the findings to more diverse populations.

DISCLOSURES:

Some authors were supported by the Rheumatology Research Foundation Scientist Development Award, a VERITY Pilot & Feasibility Research Award, the Société Française de Rhumatologie, the National Institute of Arthritis and Musculoskeletal and Skin Diseases, and other sources. The authors declared receiving grant support, consulting fees, and honoraria from various organizations and pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Older age, male sex, and seropositivity are linked to a higher risk for rheumatoid arthritis–interstitial lung disease (RA-ILD) with a usual interstitial pneumonia (UIP) pattern, while only seropositivity is associated with RA-ILD with a nonspecific interstitial pneumonia pattern (NSIP).

METHODOLOGY:

• Researchers conducted a case-control study using data from two cohorts in the Mass General Brigham Healthcare system to examine the risk factors associated with different subtypes of RA-ILD.
• They identified 208 patients with RA-ILD (mean age at RA diagnosis, 50.7 years; 67.3% women) and 547 control participants with RA but no ILD (mean age at RA diagnosis, 49.1 years; 78.1% women), who had high-resolution computed tomography (HRCT) imaging data available.
• RA-ILD subtypes such as RA-UIP, RA-NSIP, organizing pneumonia, and others were determined with HRCT scans.
• The associations between demographics, lifestyle, and serologic factors and RA-ILD subtypes were evaluated using multivariable logistic regression analysis.

TAKEAWAY:

• The RA-UIP subtype, the one with worst prognosis, was associated with older age during the time of RA diagnosis (odds ratio [OR], 1.03 per year; 95% CI, 1.01-1.05), male sex (OR, 2.15; 95% CI, 1.33-3.48), and seropositivity (OR, 2.08; 95% CI, 1.24-3.48).
• On the other hand, the RA-NSIP subtype was significantly associated only with seropositivity (OR, 3.21; 95% CI, 1.36-7.56).
• Nonfibrotic ILDs were significantly associated with positive smoking status (OR, 2.81; 95% CI, 1.52-5.21) and seropositivity (OR, 2.09; 95% CI, 1.19-3.67).
• The combination of male sex, seropositivity, and positive smoking status was associated with a nearly sevenfold increased risk for RA-UIP (OR, 6.89; 95% CI, 2.41-19.69), compared with having no RA-ILD risk factors.

IN PRACTICE:

“These findings suggest that RA-ILD subtypes may have distinct risk factor profiles and emphasize the importance of further efforts to understand RA-ILD disease heterogeneity to inform screening and prognostication strategies,” the authors wrote.

SOURCE:

The study was led by Gregory C. McDermott, MD, MPH, Brigham and Women’s Hospital, Boston, and was published online on September 11, 2024, in Arthritis Care & Research.

LIMITATIONS:

This study relied on HRCT imaging, which may have introduced selection bias within the control groups. RA disease activity measures were not available for the Mass General Brigham Biobank RA cohort, which limited the analysis of the influence of disease activity on the risk for RA-ILD. Both cohorts predominantly involved White patients, which may have limited the generalizability of the findings to more diverse populations.

DISCLOSURES:

Some authors were supported by the Rheumatology Research Foundation Scientist Development Award, a VERITY Pilot & Feasibility Research Award, the Société Française de Rhumatologie, the National Institute of Arthritis and Musculoskeletal and Skin Diseases, and other sources. The authors declared receiving grant support, consulting fees, and honoraria from various organizations and pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Older age, male sex, and seropositivity are linked to a higher risk for rheumatoid arthritis–interstitial lung disease (RA-ILD) with a usual interstitial pneumonia (UIP) pattern, while only seropositivity is associated with RA-ILD with a nonspecific interstitial pneumonia pattern (NSIP).

METHODOLOGY:

• Researchers conducted a case-control study using data from two cohorts in the Mass General Brigham Healthcare system to examine the risk factors associated with different subtypes of RA-ILD.
• They identified 208 patients with RA-ILD (mean age at RA diagnosis, 50.7 years; 67.3% women) and 547 control participants with RA but no ILD (mean age at RA diagnosis, 49.1 years; 78.1% women), who had high-resolution computed tomography (HRCT) imaging data available.
• RA-ILD subtypes such as RA-UIP, RA-NSIP, organizing pneumonia, and others were determined with HRCT scans.
• The associations between demographics, lifestyle, and serologic factors and RA-ILD subtypes were evaluated using multivariable logistic regression analysis.

TAKEAWAY:

• The RA-UIP subtype, the one with worst prognosis, was associated with older age during the time of RA diagnosis (odds ratio [OR], 1.03 per year; 95% CI, 1.01-1.05), male sex (OR, 2.15; 95% CI, 1.33-3.48), and seropositivity (OR, 2.08; 95% CI, 1.24-3.48).
• On the other hand, the RA-NSIP subtype was significantly associated only with seropositivity (OR, 3.21; 95% CI, 1.36-7.56).
• Nonfibrotic ILDs were significantly associated with positive smoking status (OR, 2.81; 95% CI, 1.52-5.21) and seropositivity (OR, 2.09; 95% CI, 1.19-3.67).
• The combination of male sex, seropositivity, and positive smoking status was associated with a nearly sevenfold increased risk for RA-UIP (OR, 6.89; 95% CI, 2.41-19.69), compared with having no RA-ILD risk factors.

IN PRACTICE:

“These findings suggest that RA-ILD subtypes may have distinct risk factor profiles and emphasize the importance of further efforts to understand RA-ILD disease heterogeneity to inform screening and prognostication strategies,” the authors wrote.

SOURCE:

The study was led by Gregory C. McDermott, MD, MPH, Brigham and Women’s Hospital, Boston, and was published online on September 11, 2024, in Arthritis Care & Research.

LIMITATIONS:

This study relied on HRCT imaging, which may have introduced selection bias within the control groups. RA disease activity measures were not available for the Mass General Brigham Biobank RA cohort, which limited the analysis of the influence of disease activity on the risk for RA-ILD. Both cohorts predominantly involved White patients, which may have limited the generalizability of the findings to more diverse populations.

DISCLOSURES:

Some authors were supported by the Rheumatology Research Foundation Scientist Development Award, a VERITY Pilot & Feasibility Research Award, the Société Française de Rhumatologie, the National Institute of Arthritis and Musculoskeletal and Skin Diseases, and other sources. The authors declared receiving grant support, consulting fees, and honoraria from various organizations and pharmaceutical companies.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

When Jennifer Welsh, a 40-year-old from New Britain, Connecticut, visited her doctor about pain in her joints and neck, her doctor sent her to the emergency department (ED) to rule out meningitis. The ED did rule that out, as well as strep, so Ms. Welsh went to her follow-up appointment a few days later, hoping for answers or at least more tests to get those answers.

Instead, the doctor — a different one from the same practice as her primary care physician (PCP) — wouldn’t even talk to Ms. Welsh about her symptoms because she couldn’t see the ED’s results and refused to view the results that Ms. Welsh could pull up online.

“She just completely shut me down,” Ms. Welsh recalled. “It was a really awful appointment, and I left in tears. I was in physical pain, I had just been to the ER, nothing is really resolved, I’m stressed out about it, and this woman is completely dismissing me.”

She had been able to schedule an appointment with her regular PCP later that week, but after the harrowing experience with this doctor, she wondered if her PCP would order the rheumatoid arthritis (RA) test that Ms. Welsh suspected she needed. So, she took matters into her own hands.

“I was searching for what test to ask for from my doctor,” she said, and she found that she could order it on her own from a major lab company she was already familiar with. For around $100, “I could get it done and see what it says on my own,” she said.

But that’s not how it worked out. Her regular PCP apologized for the other doctor’s behavior and ordered the RA test as well as additional tests — and got results while Ms. Welsh still waited for the one she ordered to arrive over a week later.

At first, Ms. Welsh was grateful she could order the RA test without her doctor’s referral. “I felt it gave me a sense of control over the situation that I felt really not in control of, until the system failed me, and I didn’t get the results,” she said. But then, “not having someone I could call and get an answer about why my tests were delayed, why I wasn’t able to access them, why it was taking so long — it was definitely anxiety-inducing.”
 

A Growing Market

Ms. Welsh is one of a growing number of patients who are ordering direct-to-consumer (DTC) lab tests without the recommendation or guidance of a doctor. They’re offered online by labs ranging from well-established giants like Quest and Labcorp to smaller, potentially less vetted companies, although some smaller companies contract with larger companies like Quest. Combined, the DTC market is projected to be worth $2 billion by 2025.

Yet the burgeoning industry has also drawn critiques from both bioethicists and privacy experts. A research letter in JAMA in 2023, for example, found that less than half of the 21 companies identified in an online search declared Health Insurance Portability and Accountability Act compliance, while more than half “indicated the potential use of consumer data for research purposes either internally or through third-party sharing.” That study found the most commonly offered tests were related to diabetes, the thyroid, and vitamin levels, and hormone tests for men and women, such as testosterone or estradiol.

But a number of companies also offer tests related to rheumatologic conditions. A handful of tests offered by Labcorp, for example, could be used in rheumatology, such as tests for celiac antibodies or high-sensitivity C-reactive protein. Quest similarly offers a handful of autoimmune-related tests. But other companies offer a long slate of autoimmune or antibody tests.

The antinuclear antibody (ANA) test and RA panel offered by Quest are the same tests, run and analyzed in the same labs, as those ordered by physicians and hospitals, according to James Faix, MD, the medical director of immunology at Quest Diagnostics. Their RA panel includes rheumatoid factor and anti-cyclic citrullinated peptide as well as antibody to mutated citrullinated vimentin, “which may detect approximately 10%-15%” of patients who test negative to the first two.

Quest’s ANA test with reflex costs $112, and its RA panel costs $110, price points that are similar across other companies’ offerings. Labcorp declined to respond to questions about its DTC tests, and several smaller companies did not respond to queries about their offerings. It can therefore be hard to assess what’s included or what the quality is of many DTC tests, particularly from smaller, less established companies.
 

Oversight and Quality Control

Anthony Killeen, MD, PhD, president of the Association for Diagnostics & Laboratory Medicine (ADLM) and director of Clinical Laboratories at the University of Minnesota Medical Center in Minneapolis, said via email that the ADLM supports “expanding consumer access to direct-to-consumer laboratory testing services that have demonstrated analytical and clinical validity and clinical utility,” given the importance of individuals learning about their health status and becoming more involved in health decisions. But the ADLM also recommends “that only CLIA-certified laboratories perform direct-to-consumer testing,” he said.

Association for Diagnostics &amp; Laboratory Medicine

“There are direct-to-consumer tests on the market that are not medical-grade laboratory tests and that may be performed in nonaccredited laboratories,” Dr. Killeen said. “We advise consumers to steer clear of such tests.” The ADLM also encourages consumers to “work with qualified healthcare providers when making decisions based off the results they receive from any direct-to-consumer tests” and recommends that DTC test companies “provide consumers with sufficient information and/or access to expert help to assist them in ordering tests and interpreting the results.”

Yet it’s unclear how much support, if any, consumers can receive in terms of understanding what their tests mean. Most of the companies in the 2023 study offered optional follow-up with a healthcare professional, but these professionals ranged from physicians to “health coaches,” and all the companies had disclaimers that “test results did not constitute medical advice.”

At Quest, the only company to respond to this news organization’s request for comment, consumer-initiated tests ordered online are first reviewed by a physician at PWNHealth, an independent, third-party physician network, to determine that it’s appropriate before the lab order is actually placed.

“Once results are available, individuals have the option to discuss their results with an independent physician at no extra cost,” Dr. Faix said. ANA or RA results outside the normal ranges may trigger a “call from a PWNHealth healthcare coordinator, who can help provide information, suggestions on next steps, and set up time for the individual to speak with an independent physician to discuss questions or concerns regarding the results,” he said.

“Our goal is not to replace the role of a healthcare provider,” Dr. Faix said. “We are providing an alternate way for people to engage with the healthcare system that offers convenience, gives people more control over their own healthcare journeys, and meets them where they are, supporting both consumers and their care teams.” The company has expanded its offerings from an initial 30 tests made available in 2018 to over 130 today, deciding which to offer “based on consumer research and expertise of clinical experts.” The company has also “seen steady interest in our two consumer rheumatology offerings,” Dr. Faix said.
 

The DTC Landscape in Rheumatology

Within rheumatology, among the most popular tests is for ANA, based on the experience of Alfred Kim, MD, PhD, associate professor of medicine at Washington University School of Medicine in St Louis, Missouri.

Dr. Kim

“For a lot of people, losing control over their health is maybe the most frightening experience they can have, so I think a lot of patients use this as a way to kind of have ownership over their health,” Dr. Kim said. “Let’s say they’ve been to four doctors. No one can explain what’s going on. They’re getting frustrated, and so they just turn to solutions where they feel like they have ownership over the situation.”

Though the market is undoubtedly growing, the growth appears uneven across geography and institution types. Kim has seen a “fair number of referrals,” with patients coming in with results from a DTC test. Michael Putman, MD, MSci, assistant professor of medicine at the Medical College of Wisconsin in Milwaukee, hasn’t seen it much. “I know that patients can get testing done themselves independently, but I don’t have people routinely coming in with tests they’ve ordered in advance of our appointment,” Dr. Putman said, but, like Dr. Kim, he recognizes why patients might seek them out.

Dr. Putman

Ron Hester Photography

Risks vs Benefits

DTC testing is not an answer to the national shortage of rheumatologists, however, especially given the risks that Dr. Niewold, Dr. Putman, and Dr. Kim worry outweigh potential benefits. On the one hand, getting online test results may help expedite a referral to a specialist, Dr. Niewold said. But a long wait for that appointment could then easily become a bigger source of anxiety than comfort, Dr. Putman said.

“It’s a trade-off where you are accepting a lot more people getting false-positive diagnoses and spending months thinking they have some disease where they might not, in exchange for a couple people who would have had a delayed diagnosis,” Dr. Putman said. “There’s an enormous amount of existential suffering,” that’s familiar to rheumatologists because some patients may dread the diagnosis of a rheumatic disease the way they might fear a cancer diagnosis, especially if they have lost a family member to a condition that they suspect they share, he said. “To put yourself into an existential catastrophe — that’s not a small harm.”

Dr. Niewold agreed, pointing out that patients with a positive ANA test may “get unnecessarily worried and stay up all night reading about lupus, getting scared for weeks on end before seeing a specialist.” And there are financial harms as well for patients who may order the same test multiple times, or a whole slate of tests, that they don’t need for hundreds or thousands of dollars. There’s also the lost time and effort of researching a condition or even seeking out support groups that patients may pursue, Dr. Niewold said.

The likely biggest risk to individuals, however, is the potential for overdiagnosis or misdiagnosis.

“If someone comes in and they’ve read the textbook on lupus and they have a positive ANA, it’s really hard as a rheumatologist to walk that back,” Dr. Putman said. “The human mind is a powerful thing,” he added, and people who get a positive test will likely start to notice things like joint pain or a rash on their cheeks and begin attributing it to a diagnosis they risk convincing themselves they have. “When people come into your clinic not knowing what a disease would look like and they just tell you how they’re feeling, it’s a much cleaner and more honest way to approach diagnosis.”

Most patients likely don’t realize, for example, that none of the tests rheumatologists usually order are diagnostic in and of themselves, Dr. Niewold said. “They’re all kind of like stars in the constellation of a diagnosis,” he said. “They’re helpful, but none of them is sufficient by itself.”

Dr. Killeen agreed, noting that “consumers might not understand the nuances of these tests well enough to know whether it is appropriate to order them or how to interpret the results correctly.” Given the long-term implications of a diagnosis for a rheumatologic disease, “I would have concerns about consumers ordering and interpreting rheumatologic tests without working closely with their physicians,” Dr. Killeen said. “The main concern that lab experts have about direct-to-consumer tests is the potential for people to get misleading results and/or to misinterpret their results, which in turn could lead to people not getting the treatment they need or getting treatment when they don’t need any at all.”

It’s one thing for patients to come in asking for a particular treatment they may not need but which a doctor may be able to dissuade them from seeking. But Dr. Kim also pointed out the risk that patients may decide to treat themselves with therapies that haven’t undergone rigorous testing or haven’t been recommended by a physician.

“We tend to have people who come in with a pretty clear idea of what they want done, but the problem is, we don’t know if their reasoning is correct from a clinical perspective,” Dr. Kim said. Companies offer these tests with the belief that they’re “providing patients a choice, an option to take ownership,” he said, “but the potential harm can be realized very quickly because there are going to be people who are misdiagnosing themselves and, worse yet, may then pursue their own treatment plan that’s going in the opposite direction of where we think it needs to go.”

Or, on the flip side, if a patient erroneously believes they have the answer to what ails them, it may delay diagnosis of a more serious condition that’s rarer or harder to detect. Kim pointed to, for example, intravascular lymphoma, which is notoriously as difficult to identify as it is rare and aggressive. If a patient’s confirmation bias has led them to believe they have an autoimmune condition, they may not receive the more serious diagnosis until it’s advanced too far to treat.
 

Patient-Provider Relationship Friction

Another concern is how these tests may lead to confusion and frustration that can erode the patient-provider relationship, particularly because most patients don’t know how to interpret the results or understand the bigger context in which the results have to be interpreted. Many patients may think a test can come back with a binary answer, a positive or negative, and that means they do or don’t have a condition. That’s generally true for pregnancy tests, COVID tests, and sexually transmitted infection tests — the kinds of tests that have long been available to consumers and which have fairly straightforward answers.

But physicians know that’s not the case for many conditions, particularly those in rheumatology.

“In rheumatic diseases, because the tests have such marginal value in terms of diagnosis, almost always we develop a suspicion before we even think about ordering the tests, and then that dictates whether or not we cross that threshold,” Dr. Kim said. “A negative test doesn’t exclude the fact that you may have disease X, but a positive test also doesn’t mean you have disease X. All they provide is an idea of the risk.”

But some patients who come in with DTC test results have “already made the decision in their mind that they have a certain condition,” Dr. Kim said. “This is obviously dangerous because the majority of these patients do not have the condition they think they have, and it leaves a very uncomfortable feeling after the visit because they feel like they’ve been either betrayed by me or by the test, and they leave more confused.”

Patients may also come in with tests that a doctor isn’t familiar with or isn’t sure how to interpret on its own, at least for that particular patient.

“For ANA testing, we have a pretty good idea of its positive and negative predictive value because it’s ordered so much, but for many of these tests being offered, there are specific autoantibodies, and we tend to only get them in people where there’s a clinical suspicion,” Dr. Kim said. “Within that very specific context, we kind of understand what that value means, but if you give it to the general public, then those numbers aren’t as applicable and most likely overestimate the risk of disease.”

Even if providers consider the results of a DTC test in their differential, they may want to be sure it’s from a trustworthy source. “If a provider is uncertain about whether a direct-to-consumer testing company is reputable or about whether a direct-to-consumer test result is reliable, I would encourage them to consult with their laboratory medicine colleagues,” Dr. Killeen said.
 

Responding to Patients

Like any other patient coming to a clinical visit, the most common reason patients are likely ordering these tests is that they’re seeking answers. Kim doesn’t typically see patients doing their own monitoring for diagnosed conditions between visits — the expense would add up too quickly — or testing for genetic markers, which likely wouldn’t be very helpful either.

“Even though most of our diseases probably have a genetic underpinning, how much it contributes is always unclear,” Dr. Kim said. Even conditions with clear genetic variants, such as familial Mediterranean fever, spondyloarthritis, and Behçet disease, can only support a diagnosis, not diagnose it on its own, Dr. Killeen said. And these are not among the tests currently available on most DTC company sites.

While there are also tests that can offer information about genetic risks for certain medications, such as a thiopurine methyltransferase test to find out if a patient lacks the enzyme needed to break down the immunosuppressant drug azathioprine, Kim hasn’t seen patients seeking these out either.

“The more global and more compassionate way to think about this is that we have a lot of people who are struggling to understand what’s going on with their bodies, and most physicians really don’t know what the next steps are for these people,” Dr. Kim said. “They’re desperate, and their quality of life is so poor that they’re going to take extreme steps to try to manage their own frustration with this condition.”

That means clinicians’ most powerful tools when patients come in with DTC test results are their listening skills.

“Empathy is the most important thing, just being able to share the patient’s frustration to the point where they had to take matters into their own hands,” Dr. Kim said. “I think a lot of rheumatologists are actually pretty comfortable being in this position.”

Additionally, doctors should know that some patients may be engaging in attempts to self-diagnose, self-treat, or otherwise self-manage their symptoms or perceived condition. “They just need to be aware and try to make sure there’s no harm being done,” Dr. Kim said.

Ms. Welsh didn’t seek treatment or diagnosis on her own, but getting her test also did not give her the control she was seeking. “Looking back, it was kind of a waste of money, but it felt good in the moment,” Ms. Welsh said. “I was so upset, and I wanted that control, and in the end, it didn’t get me results any sooner, and it didn’t give me peace of mind.”

It was Ms. Welsh’s primary care doctor listening to her concerns, ordering the same test she had ordered with several others, and working with her to seek answers that reassured her that her provider cared about her well-being.

“A lot of what I do in my business is reassure people that you know what they have is treatable or not going to end their life as they know it,” Dr. Putman said. “And you certainly can’t reassure them if they’re not in your clinic yet.”

Dr. Putman has participated in clinical trials with AbbVie, consulting with Novartis and GSK, and clinical trials and consulting with Amgen and AstraZeneca. Dr. Niewold reported receiving research grants from EMD Serono and Zenas BioPharma and consulting for Thermo Fisher Scientific, Progentec Diagnostics, Roivant Sciences, AstraZeneca, S3 Connected Health, Flagship Pioneering, and Guidepoint. Dr. Kim reported sponsored research agreements with AstraZeneca, Bristol-Myers Squibb, Novartis, and CRISPR Therapeutics; royalties from Kypha; and consulting/speaking for Amgen, ANI Pharmaceuticals, Atara Biotherapeutics, Aurinia Pharmaceuticals, CARGO Therapeutics, Exagen Diagnostics, GSK, Hinge Bio, Kypha, Progentec Diagnostics, Synthekine, and UpToDate. Dr. Killeen had no relevant financial relationships to disclose.
 

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

When Jennifer Welsh, a 40-year-old from New Britain, Connecticut, visited her doctor about pain in her joints and neck, her doctor sent her to the emergency department (ED) to rule out meningitis. The ED did rule that out, as well as strep, so Ms. Welsh went to her follow-up appointment a few days later, hoping for answers or at least more tests to get those answers.

Instead, the doctor — a different one from the same practice as her primary care physician (PCP) — wouldn’t even talk to Ms. Welsh about her symptoms because she couldn’t see the ED’s results and refused to view the results that Ms. Welsh could pull up online.

“She just completely shut me down,” Ms. Welsh recalled. “It was a really awful appointment, and I left in tears. I was in physical pain, I had just been to the ER, nothing is really resolved, I’m stressed out about it, and this woman is completely dismissing me.”

She had been able to schedule an appointment with her regular PCP later that week, but after the harrowing experience with this doctor, she wondered if her PCP would order the rheumatoid arthritis (RA) test that Ms. Welsh suspected she needed. So, she took matters into her own hands.

“I was searching for what test to ask for from my doctor,” she said, and she found that she could order it on her own from a major lab company she was already familiar with. For around $100, “I could get it done and see what it says on my own,” she said.

But that’s not how it worked out. Her regular PCP apologized for the other doctor’s behavior and ordered the RA test as well as additional tests — and got results while Ms. Welsh still waited for the one she ordered to arrive over a week later.

At first, Ms. Welsh was grateful she could order the RA test without her doctor’s referral. “I felt it gave me a sense of control over the situation that I felt really not in control of, until the system failed me, and I didn’t get the results,” she said. But then, “not having someone I could call and get an answer about why my tests were delayed, why I wasn’t able to access them, why it was taking so long — it was definitely anxiety-inducing.”
 

A Growing Market

Ms. Welsh is one of a growing number of patients who are ordering direct-to-consumer (DTC) lab tests without the recommendation or guidance of a doctor. They’re offered online by labs ranging from well-established giants like Quest and Labcorp to smaller, potentially less vetted companies, although some smaller companies contract with larger companies like Quest. Combined, the DTC market is projected to be worth $2 billion by 2025.

Yet the burgeoning industry has also drawn critiques from both bioethicists and privacy experts. A research letter in JAMA in 2023, for example, found that less than half of the 21 companies identified in an online search declared Health Insurance Portability and Accountability Act compliance, while more than half “indicated the potential use of consumer data for research purposes either internally or through third-party sharing.” That study found the most commonly offered tests were related to diabetes, the thyroid, and vitamin levels, and hormone tests for men and women, such as testosterone or estradiol.

But a number of companies also offer tests related to rheumatologic conditions. A handful of tests offered by Labcorp, for example, could be used in rheumatology, such as tests for celiac antibodies or high-sensitivity C-reactive protein. Quest similarly offers a handful of autoimmune-related tests. But other companies offer a long slate of autoimmune or antibody tests.

The antinuclear antibody (ANA) test and RA panel offered by Quest are the same tests, run and analyzed in the same labs, as those ordered by physicians and hospitals, according to James Faix, MD, the medical director of immunology at Quest Diagnostics. Their RA panel includes rheumatoid factor and anti-cyclic citrullinated peptide as well as antibody to mutated citrullinated vimentin, “which may detect approximately 10%-15%” of patients who test negative to the first two.

Quest’s ANA test with reflex costs $112, and its RA panel costs $110, price points that are similar across other companies’ offerings. Labcorp declined to respond to questions about its DTC tests, and several smaller companies did not respond to queries about their offerings. It can therefore be hard to assess what’s included or what the quality is of many DTC tests, particularly from smaller, less established companies.
 

Oversight and Quality Control

Anthony Killeen, MD, PhD, president of the Association for Diagnostics & Laboratory Medicine (ADLM) and director of Clinical Laboratories at the University of Minnesota Medical Center in Minneapolis, said via email that the ADLM supports “expanding consumer access to direct-to-consumer laboratory testing services that have demonstrated analytical and clinical validity and clinical utility,” given the importance of individuals learning about their health status and becoming more involved in health decisions. But the ADLM also recommends “that only CLIA-certified laboratories perform direct-to-consumer testing,” he said.

Association for Diagnostics &amp; Laboratory Medicine

“There are direct-to-consumer tests on the market that are not medical-grade laboratory tests and that may be performed in nonaccredited laboratories,” Dr. Killeen said. “We advise consumers to steer clear of such tests.” The ADLM also encourages consumers to “work with qualified healthcare providers when making decisions based off the results they receive from any direct-to-consumer tests” and recommends that DTC test companies “provide consumers with sufficient information and/or access to expert help to assist them in ordering tests and interpreting the results.”

Yet it’s unclear how much support, if any, consumers can receive in terms of understanding what their tests mean. Most of the companies in the 2023 study offered optional follow-up with a healthcare professional, but these professionals ranged from physicians to “health coaches,” and all the companies had disclaimers that “test results did not constitute medical advice.”

At Quest, the only company to respond to this news organization’s request for comment, consumer-initiated tests ordered online are first reviewed by a physician at PWNHealth, an independent, third-party physician network, to determine that it’s appropriate before the lab order is actually placed.

“Once results are available, individuals have the option to discuss their results with an independent physician at no extra cost,” Dr. Faix said. ANA or RA results outside the normal ranges may trigger a “call from a PWNHealth healthcare coordinator, who can help provide information, suggestions on next steps, and set up time for the individual to speak with an independent physician to discuss questions or concerns regarding the results,” he said.

“Our goal is not to replace the role of a healthcare provider,” Dr. Faix said. “We are providing an alternate way for people to engage with the healthcare system that offers convenience, gives people more control over their own healthcare journeys, and meets them where they are, supporting both consumers and their care teams.” The company has expanded its offerings from an initial 30 tests made available in 2018 to over 130 today, deciding which to offer “based on consumer research and expertise of clinical experts.” The company has also “seen steady interest in our two consumer rheumatology offerings,” Dr. Faix said.
 

The DTC Landscape in Rheumatology

Within rheumatology, among the most popular tests is for ANA, based on the experience of Alfred Kim, MD, PhD, associate professor of medicine at Washington University School of Medicine in St Louis, Missouri.

Dr. Kim

“For a lot of people, losing control over their health is maybe the most frightening experience they can have, so I think a lot of patients use this as a way to kind of have ownership over their health,” Dr. Kim said. “Let’s say they’ve been to four doctors. No one can explain what’s going on. They’re getting frustrated, and so they just turn to solutions where they feel like they have ownership over the situation.”

Though the market is undoubtedly growing, the growth appears uneven across geography and institution types. Kim has seen a “fair number of referrals,” with patients coming in with results from a DTC test. Michael Putman, MD, MSci, assistant professor of medicine at the Medical College of Wisconsin in Milwaukee, hasn’t seen it much. “I know that patients can get testing done themselves independently, but I don’t have people routinely coming in with tests they’ve ordered in advance of our appointment,” Dr. Putman said, but, like Dr. Kim, he recognizes why patients might seek them out.

Dr. Putman

Ron Hester Photography

Risks vs Benefits

DTC testing is not an answer to the national shortage of rheumatologists, however, especially given the risks that Dr. Niewold, Dr. Putman, and Dr. Kim worry outweigh potential benefits. On the one hand, getting online test results may help expedite a referral to a specialist, Dr. Niewold said. But a long wait for that appointment could then easily become a bigger source of anxiety than comfort, Dr. Putman said.

“It’s a trade-off where you are accepting a lot more people getting false-positive diagnoses and spending months thinking they have some disease where they might not, in exchange for a couple people who would have had a delayed diagnosis,” Dr. Putman said. “There’s an enormous amount of existential suffering,” that’s familiar to rheumatologists because some patients may dread the diagnosis of a rheumatic disease the way they might fear a cancer diagnosis, especially if they have lost a family member to a condition that they suspect they share, he said. “To put yourself into an existential catastrophe — that’s not a small harm.”

Dr. Niewold agreed, pointing out that patients with a positive ANA test may “get unnecessarily worried and stay up all night reading about lupus, getting scared for weeks on end before seeing a specialist.” And there are financial harms as well for patients who may order the same test multiple times, or a whole slate of tests, that they don’t need for hundreds or thousands of dollars. There’s also the lost time and effort of researching a condition or even seeking out support groups that patients may pursue, Dr. Niewold said.

The likely biggest risk to individuals, however, is the potential for overdiagnosis or misdiagnosis.

“If someone comes in and they’ve read the textbook on lupus and they have a positive ANA, it’s really hard as a rheumatologist to walk that back,” Dr. Putman said. “The human mind is a powerful thing,” he added, and people who get a positive test will likely start to notice things like joint pain or a rash on their cheeks and begin attributing it to a diagnosis they risk convincing themselves they have. “When people come into your clinic not knowing what a disease would look like and they just tell you how they’re feeling, it’s a much cleaner and more honest way to approach diagnosis.”

Most patients likely don’t realize, for example, that none of the tests rheumatologists usually order are diagnostic in and of themselves, Dr. Niewold said. “They’re all kind of like stars in the constellation of a diagnosis,” he said. “They’re helpful, but none of them is sufficient by itself.”

Dr. Killeen agreed, noting that “consumers might not understand the nuances of these tests well enough to know whether it is appropriate to order them or how to interpret the results correctly.” Given the long-term implications of a diagnosis for a rheumatologic disease, “I would have concerns about consumers ordering and interpreting rheumatologic tests without working closely with their physicians,” Dr. Killeen said. “The main concern that lab experts have about direct-to-consumer tests is the potential for people to get misleading results and/or to misinterpret their results, which in turn could lead to people not getting the treatment they need or getting treatment when they don’t need any at all.”

It’s one thing for patients to come in asking for a particular treatment they may not need but which a doctor may be able to dissuade them from seeking. But Dr. Kim also pointed out the risk that patients may decide to treat themselves with therapies that haven’t undergone rigorous testing or haven’t been recommended by a physician.

“We tend to have people who come in with a pretty clear idea of what they want done, but the problem is, we don’t know if their reasoning is correct from a clinical perspective,” Dr. Kim said. Companies offer these tests with the belief that they’re “providing patients a choice, an option to take ownership,” he said, “but the potential harm can be realized very quickly because there are going to be people who are misdiagnosing themselves and, worse yet, may then pursue their own treatment plan that’s going in the opposite direction of where we think it needs to go.”

Or, on the flip side, if a patient erroneously believes they have the answer to what ails them, it may delay diagnosis of a more serious condition that’s rarer or harder to detect. Kim pointed to, for example, intravascular lymphoma, which is notoriously as difficult to identify as it is rare and aggressive. If a patient’s confirmation bias has led them to believe they have an autoimmune condition, they may not receive the more serious diagnosis until it’s advanced too far to treat.
 

Patient-Provider Relationship Friction

Another concern is how these tests may lead to confusion and frustration that can erode the patient-provider relationship, particularly because most patients don’t know how to interpret the results or understand the bigger context in which the results have to be interpreted. Many patients may think a test can come back with a binary answer, a positive or negative, and that means they do or don’t have a condition. That’s generally true for pregnancy tests, COVID tests, and sexually transmitted infection tests — the kinds of tests that have long been available to consumers and which have fairly straightforward answers.

But physicians know that’s not the case for many conditions, particularly those in rheumatology.

“In rheumatic diseases, because the tests have such marginal value in terms of diagnosis, almost always we develop a suspicion before we even think about ordering the tests, and then that dictates whether or not we cross that threshold,” Dr. Kim said. “A negative test doesn’t exclude the fact that you may have disease X, but a positive test also doesn’t mean you have disease X. All they provide is an idea of the risk.”

But some patients who come in with DTC test results have “already made the decision in their mind that they have a certain condition,” Dr. Kim said. “This is obviously dangerous because the majority of these patients do not have the condition they think they have, and it leaves a very uncomfortable feeling after the visit because they feel like they’ve been either betrayed by me or by the test, and they leave more confused.”

Patients may also come in with tests that a doctor isn’t familiar with or isn’t sure how to interpret on its own, at least for that particular patient.

“For ANA testing, we have a pretty good idea of its positive and negative predictive value because it’s ordered so much, but for many of these tests being offered, there are specific autoantibodies, and we tend to only get them in people where there’s a clinical suspicion,” Dr. Kim said. “Within that very specific context, we kind of understand what that value means, but if you give it to the general public, then those numbers aren’t as applicable and most likely overestimate the risk of disease.”

Even if providers consider the results of a DTC test in their differential, they may want to be sure it’s from a trustworthy source. “If a provider is uncertain about whether a direct-to-consumer testing company is reputable or about whether a direct-to-consumer test result is reliable, I would encourage them to consult with their laboratory medicine colleagues,” Dr. Killeen said.
 

Responding to Patients

Like any other patient coming to a clinical visit, the most common reason patients are likely ordering these tests is that they’re seeking answers. Kim doesn’t typically see patients doing their own monitoring for diagnosed conditions between visits — the expense would add up too quickly — or testing for genetic markers, which likely wouldn’t be very helpful either.

“Even though most of our diseases probably have a genetic underpinning, how much it contributes is always unclear,” Dr. Kim said. Even conditions with clear genetic variants, such as familial Mediterranean fever, spondyloarthritis, and Behçet disease, can only support a diagnosis, not diagnose it on its own, Dr. Killeen said. And these are not among the tests currently available on most DTC company sites.

While there are also tests that can offer information about genetic risks for certain medications, such as a thiopurine methyltransferase test to find out if a patient lacks the enzyme needed to break down the immunosuppressant drug azathioprine, Kim hasn’t seen patients seeking these out either.

“The more global and more compassionate way to think about this is that we have a lot of people who are struggling to understand what’s going on with their bodies, and most physicians really don’t know what the next steps are for these people,” Dr. Kim said. “They’re desperate, and their quality of life is so poor that they’re going to take extreme steps to try to manage their own frustration with this condition.”

That means clinicians’ most powerful tools when patients come in with DTC test results are their listening skills.

“Empathy is the most important thing, just being able to share the patient’s frustration to the point where they had to take matters into their own hands,” Dr. Kim said. “I think a lot of rheumatologists are actually pretty comfortable being in this position.”

Additionally, doctors should know that some patients may be engaging in attempts to self-diagnose, self-treat, or otherwise self-manage their symptoms or perceived condition. “They just need to be aware and try to make sure there’s no harm being done,” Dr. Kim said.

Ms. Welsh didn’t seek treatment or diagnosis on her own, but getting her test also did not give her the control she was seeking. “Looking back, it was kind of a waste of money, but it felt good in the moment,” Ms. Welsh said. “I was so upset, and I wanted that control, and in the end, it didn’t get me results any sooner, and it didn’t give me peace of mind.”

It was Ms. Welsh’s primary care doctor listening to her concerns, ordering the same test she had ordered with several others, and working with her to seek answers that reassured her that her provider cared about her well-being.

“A lot of what I do in my business is reassure people that you know what they have is treatable or not going to end their life as they know it,” Dr. Putman said. “And you certainly can’t reassure them if they’re not in your clinic yet.”

Dr. Putman has participated in clinical trials with AbbVie, consulting with Novartis and GSK, and clinical trials and consulting with Amgen and AstraZeneca. Dr. Niewold reported receiving research grants from EMD Serono and Zenas BioPharma and consulting for Thermo Fisher Scientific, Progentec Diagnostics, Roivant Sciences, AstraZeneca, S3 Connected Health, Flagship Pioneering, and Guidepoint. Dr. Kim reported sponsored research agreements with AstraZeneca, Bristol-Myers Squibb, Novartis, and CRISPR Therapeutics; royalties from Kypha; and consulting/speaking for Amgen, ANI Pharmaceuticals, Atara Biotherapeutics, Aurinia Pharmaceuticals, CARGO Therapeutics, Exagen Diagnostics, GSK, Hinge Bio, Kypha, Progentec Diagnostics, Synthekine, and UpToDate. Dr. Killeen had no relevant financial relationships to disclose.
 

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

When Jennifer Welsh, a 40-year-old from New Britain, Connecticut, visited her doctor about pain in her joints and neck, her doctor sent her to the emergency department (ED) to rule out meningitis. The ED did rule that out, as well as strep, so Ms. Welsh went to her follow-up appointment a few days later, hoping for answers or at least more tests to get those answers.

Instead, the doctor — a different one from the same practice as her primary care physician (PCP) — wouldn’t even talk to Ms. Welsh about her symptoms because she couldn’t see the ED’s results and refused to view the results that Ms. Welsh could pull up online.

“She just completely shut me down,” Ms. Welsh recalled. “It was a really awful appointment, and I left in tears. I was in physical pain, I had just been to the ER, nothing is really resolved, I’m stressed out about it, and this woman is completely dismissing me.”

She had been able to schedule an appointment with her regular PCP later that week, but after the harrowing experience with this doctor, she wondered if her PCP would order the rheumatoid arthritis (RA) test that Ms. Welsh suspected she needed. So, she took matters into her own hands.

“I was searching for what test to ask for from my doctor,” she said, and she found that she could order it on her own from a major lab company she was already familiar with. For around $100, “I could get it done and see what it says on my own,” she said.

But that’s not how it worked out. Her regular PCP apologized for the other doctor’s behavior and ordered the RA test as well as additional tests — and got results while Ms. Welsh still waited for the one she ordered to arrive over a week later.

At first, Ms. Welsh was grateful she could order the RA test without her doctor’s referral. “I felt it gave me a sense of control over the situation that I felt really not in control of, until the system failed me, and I didn’t get the results,” she said. But then, “not having someone I could call and get an answer about why my tests were delayed, why I wasn’t able to access them, why it was taking so long — it was definitely anxiety-inducing.”
 

A Growing Market

Ms. Welsh is one of a growing number of patients who are ordering direct-to-consumer (DTC) lab tests without the recommendation or guidance of a doctor. They’re offered online by labs ranging from well-established giants like Quest and Labcorp to smaller, potentially less vetted companies, although some smaller companies contract with larger companies like Quest. Combined, the DTC market is projected to be worth $2 billion by 2025.

Yet the burgeoning industry has also drawn critiques from both bioethicists and privacy experts. A research letter in JAMA in 2023, for example, found that less than half of the 21 companies identified in an online search declared Health Insurance Portability and Accountability Act compliance, while more than half “indicated the potential use of consumer data for research purposes either internally or through third-party sharing.” That study found the most commonly offered tests were related to diabetes, the thyroid, and vitamin levels, and hormone tests for men and women, such as testosterone or estradiol.

But a number of companies also offer tests related to rheumatologic conditions. A handful of tests offered by Labcorp, for example, could be used in rheumatology, such as tests for celiac antibodies or high-sensitivity C-reactive protein. Quest similarly offers a handful of autoimmune-related tests. But other companies offer a long slate of autoimmune or antibody tests.

The antinuclear antibody (ANA) test and RA panel offered by Quest are the same tests, run and analyzed in the same labs, as those ordered by physicians and hospitals, according to James Faix, MD, the medical director of immunology at Quest Diagnostics. Their RA panel includes rheumatoid factor and anti-cyclic citrullinated peptide as well as antibody to mutated citrullinated vimentin, “which may detect approximately 10%-15%” of patients who test negative to the first two.

Quest’s ANA test with reflex costs $112, and its RA panel costs $110, price points that are similar across other companies’ offerings. Labcorp declined to respond to questions about its DTC tests, and several smaller companies did not respond to queries about their offerings. It can therefore be hard to assess what’s included or what the quality is of many DTC tests, particularly from smaller, less established companies.
 

Oversight and Quality Control

Anthony Killeen, MD, PhD, president of the Association for Diagnostics & Laboratory Medicine (ADLM) and director of Clinical Laboratories at the University of Minnesota Medical Center in Minneapolis, said via email that the ADLM supports “expanding consumer access to direct-to-consumer laboratory testing services that have demonstrated analytical and clinical validity and clinical utility,” given the importance of individuals learning about their health status and becoming more involved in health decisions. But the ADLM also recommends “that only CLIA-certified laboratories perform direct-to-consumer testing,” he said.

Association for Diagnostics &amp; Laboratory Medicine

“There are direct-to-consumer tests on the market that are not medical-grade laboratory tests and that may be performed in nonaccredited laboratories,” Dr. Killeen said. “We advise consumers to steer clear of such tests.” The ADLM also encourages consumers to “work with qualified healthcare providers when making decisions based off the results they receive from any direct-to-consumer tests” and recommends that DTC test companies “provide consumers with sufficient information and/or access to expert help to assist them in ordering tests and interpreting the results.”

Yet it’s unclear how much support, if any, consumers can receive in terms of understanding what their tests mean. Most of the companies in the 2023 study offered optional follow-up with a healthcare professional, but these professionals ranged from physicians to “health coaches,” and all the companies had disclaimers that “test results did not constitute medical advice.”

At Quest, the only company to respond to this news organization’s request for comment, consumer-initiated tests ordered online are first reviewed by a physician at PWNHealth, an independent, third-party physician network, to determine that it’s appropriate before the lab order is actually placed.

“Once results are available, individuals have the option to discuss their results with an independent physician at no extra cost,” Dr. Faix said. ANA or RA results outside the normal ranges may trigger a “call from a PWNHealth healthcare coordinator, who can help provide information, suggestions on next steps, and set up time for the individual to speak with an independent physician to discuss questions or concerns regarding the results,” he said.

“Our goal is not to replace the role of a healthcare provider,” Dr. Faix said. “We are providing an alternate way for people to engage with the healthcare system that offers convenience, gives people more control over their own healthcare journeys, and meets them where they are, supporting both consumers and their care teams.” The company has expanded its offerings from an initial 30 tests made available in 2018 to over 130 today, deciding which to offer “based on consumer research and expertise of clinical experts.” The company has also “seen steady interest in our two consumer rheumatology offerings,” Dr. Faix said.
 

The DTC Landscape in Rheumatology

Within rheumatology, among the most popular tests is for ANA, based on the experience of Alfred Kim, MD, PhD, associate professor of medicine at Washington University School of Medicine in St Louis, Missouri.

Dr. Kim

“For a lot of people, losing control over their health is maybe the most frightening experience they can have, so I think a lot of patients use this as a way to kind of have ownership over their health,” Dr. Kim said. “Let’s say they’ve been to four doctors. No one can explain what’s going on. They’re getting frustrated, and so they just turn to solutions where they feel like they have ownership over the situation.”

Though the market is undoubtedly growing, the growth appears uneven across geography and institution types. Kim has seen a “fair number of referrals,” with patients coming in with results from a DTC test. Michael Putman, MD, MSci, assistant professor of medicine at the Medical College of Wisconsin in Milwaukee, hasn’t seen it much. “I know that patients can get testing done themselves independently, but I don’t have people routinely coming in with tests they’ve ordered in advance of our appointment,” Dr. Putman said, but, like Dr. Kim, he recognizes why patients might seek them out.

Dr. Putman

Ron Hester Photography

Risks vs Benefits

DTC testing is not an answer to the national shortage of rheumatologists, however, especially given the risks that Dr. Niewold, Dr. Putman, and Dr. Kim worry outweigh potential benefits. On the one hand, getting online test results may help expedite a referral to a specialist, Dr. Niewold said. But a long wait for that appointment could then easily become a bigger source of anxiety than comfort, Dr. Putman said.

“It’s a trade-off where you are accepting a lot more people getting false-positive diagnoses and spending months thinking they have some disease where they might not, in exchange for a couple people who would have had a delayed diagnosis,” Dr. Putman said. “There’s an enormous amount of existential suffering,” that’s familiar to rheumatologists because some patients may dread the diagnosis of a rheumatic disease the way they might fear a cancer diagnosis, especially if they have lost a family member to a condition that they suspect they share, he said. “To put yourself into an existential catastrophe — that’s not a small harm.”

Dr. Niewold agreed, pointing out that patients with a positive ANA test may “get unnecessarily worried and stay up all night reading about lupus, getting scared for weeks on end before seeing a specialist.” And there are financial harms as well for patients who may order the same test multiple times, or a whole slate of tests, that they don’t need for hundreds or thousands of dollars. There’s also the lost time and effort of researching a condition or even seeking out support groups that patients may pursue, Dr. Niewold said.

The likely biggest risk to individuals, however, is the potential for overdiagnosis or misdiagnosis.

“If someone comes in and they’ve read the textbook on lupus and they have a positive ANA, it’s really hard as a rheumatologist to walk that back,” Dr. Putman said. “The human mind is a powerful thing,” he added, and people who get a positive test will likely start to notice things like joint pain or a rash on their cheeks and begin attributing it to a diagnosis they risk convincing themselves they have. “When people come into your clinic not knowing what a disease would look like and they just tell you how they’re feeling, it’s a much cleaner and more honest way to approach diagnosis.”

Most patients likely don’t realize, for example, that none of the tests rheumatologists usually order are diagnostic in and of themselves, Dr. Niewold said. “They’re all kind of like stars in the constellation of a diagnosis,” he said. “They’re helpful, but none of them is sufficient by itself.”

Dr. Killeen agreed, noting that “consumers might not understand the nuances of these tests well enough to know whether it is appropriate to order them or how to interpret the results correctly.” Given the long-term implications of a diagnosis for a rheumatologic disease, “I would have concerns about consumers ordering and interpreting rheumatologic tests without working closely with their physicians,” Dr. Killeen said. “The main concern that lab experts have about direct-to-consumer tests is the potential for people to get misleading results and/or to misinterpret their results, which in turn could lead to people not getting the treatment they need or getting treatment when they don’t need any at all.”

It’s one thing for patients to come in asking for a particular treatment they may not need but which a doctor may be able to dissuade them from seeking. But Dr. Kim also pointed out the risk that patients may decide to treat themselves with therapies that haven’t undergone rigorous testing or haven’t been recommended by a physician.

“We tend to have people who come in with a pretty clear idea of what they want done, but the problem is, we don’t know if their reasoning is correct from a clinical perspective,” Dr. Kim said. Companies offer these tests with the belief that they’re “providing patients a choice, an option to take ownership,” he said, “but the potential harm can be realized very quickly because there are going to be people who are misdiagnosing themselves and, worse yet, may then pursue their own treatment plan that’s going in the opposite direction of where we think it needs to go.”

Or, on the flip side, if a patient erroneously believes they have the answer to what ails them, it may delay diagnosis of a more serious condition that’s rarer or harder to detect. Kim pointed to, for example, intravascular lymphoma, which is notoriously as difficult to identify as it is rare and aggressive. If a patient’s confirmation bias has led them to believe they have an autoimmune condition, they may not receive the more serious diagnosis until it’s advanced too far to treat.
 

Patient-Provider Relationship Friction

Another concern is how these tests may lead to confusion and frustration that can erode the patient-provider relationship, particularly because most patients don’t know how to interpret the results or understand the bigger context in which the results have to be interpreted. Many patients may think a test can come back with a binary answer, a positive or negative, and that means they do or don’t have a condition. That’s generally true for pregnancy tests, COVID tests, and sexually transmitted infection tests — the kinds of tests that have long been available to consumers and which have fairly straightforward answers.

But physicians know that’s not the case for many conditions, particularly those in rheumatology.

“In rheumatic diseases, because the tests have such marginal value in terms of diagnosis, almost always we develop a suspicion before we even think about ordering the tests, and then that dictates whether or not we cross that threshold,” Dr. Kim said. “A negative test doesn’t exclude the fact that you may have disease X, but a positive test also doesn’t mean you have disease X. All they provide is an idea of the risk.”

But some patients who come in with DTC test results have “already made the decision in their mind that they have a certain condition,” Dr. Kim said. “This is obviously dangerous because the majority of these patients do not have the condition they think they have, and it leaves a very uncomfortable feeling after the visit because they feel like they’ve been either betrayed by me or by the test, and they leave more confused.”

Patients may also come in with tests that a doctor isn’t familiar with or isn’t sure how to interpret on its own, at least for that particular patient.

“For ANA testing, we have a pretty good idea of its positive and negative predictive value because it’s ordered so much, but for many of these tests being offered, there are specific autoantibodies, and we tend to only get them in people where there’s a clinical suspicion,” Dr. Kim said. “Within that very specific context, we kind of understand what that value means, but if you give it to the general public, then those numbers aren’t as applicable and most likely overestimate the risk of disease.”

Even if providers consider the results of a DTC test in their differential, they may want to be sure it’s from a trustworthy source. “If a provider is uncertain about whether a direct-to-consumer testing company is reputable or about whether a direct-to-consumer test result is reliable, I would encourage them to consult with their laboratory medicine colleagues,” Dr. Killeen said.
 

Responding to Patients

Like any other patient coming to a clinical visit, the most common reason patients are likely ordering these tests is that they’re seeking answers. Kim doesn’t typically see patients doing their own monitoring for diagnosed conditions between visits — the expense would add up too quickly — or testing for genetic markers, which likely wouldn’t be very helpful either.

“Even though most of our diseases probably have a genetic underpinning, how much it contributes is always unclear,” Dr. Kim said. Even conditions with clear genetic variants, such as familial Mediterranean fever, spondyloarthritis, and Behçet disease, can only support a diagnosis, not diagnose it on its own, Dr. Killeen said. And these are not among the tests currently available on most DTC company sites.

While there are also tests that can offer information about genetic risks for certain medications, such as a thiopurine methyltransferase test to find out if a patient lacks the enzyme needed to break down the immunosuppressant drug azathioprine, Kim hasn’t seen patients seeking these out either.

“The more global and more compassionate way to think about this is that we have a lot of people who are struggling to understand what’s going on with their bodies, and most physicians really don’t know what the next steps are for these people,” Dr. Kim said. “They’re desperate, and their quality of life is so poor that they’re going to take extreme steps to try to manage their own frustration with this condition.”

That means clinicians’ most powerful tools when patients come in with DTC test results are their listening skills.

“Empathy is the most important thing, just being able to share the patient’s frustration to the point where they had to take matters into their own hands,” Dr. Kim said. “I think a lot of rheumatologists are actually pretty comfortable being in this position.”

Additionally, doctors should know that some patients may be engaging in attempts to self-diagnose, self-treat, or otherwise self-manage their symptoms or perceived condition. “They just need to be aware and try to make sure there’s no harm being done,” Dr. Kim said.

Ms. Welsh didn’t seek treatment or diagnosis on her own, but getting her test also did not give her the control she was seeking. “Looking back, it was kind of a waste of money, but it felt good in the moment,” Ms. Welsh said. “I was so upset, and I wanted that control, and in the end, it didn’t get me results any sooner, and it didn’t give me peace of mind.”

It was Ms. Welsh’s primary care doctor listening to her concerns, ordering the same test she had ordered with several others, and working with her to seek answers that reassured her that her provider cared about her well-being.

“A lot of what I do in my business is reassure people that you know what they have is treatable or not going to end their life as they know it,” Dr. Putman said. “And you certainly can’t reassure them if they’re not in your clinic yet.”

Dr. Putman has participated in clinical trials with AbbVie, consulting with Novartis and GSK, and clinical trials and consulting with Amgen and AstraZeneca. Dr. Niewold reported receiving research grants from EMD Serono and Zenas BioPharma and consulting for Thermo Fisher Scientific, Progentec Diagnostics, Roivant Sciences, AstraZeneca, S3 Connected Health, Flagship Pioneering, and Guidepoint. Dr. Kim reported sponsored research agreements with AstraZeneca, Bristol-Myers Squibb, Novartis, and CRISPR Therapeutics; royalties from Kypha; and consulting/speaking for Amgen, ANI Pharmaceuticals, Atara Biotherapeutics, Aurinia Pharmaceuticals, CARGO Therapeutics, Exagen Diagnostics, GSK, Hinge Bio, Kypha, Progentec Diagnostics, Synthekine, and UpToDate. Dr. Killeen had no relevant financial relationships to disclose.
 

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