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Objective Group‐level analyses from the phase 3 DISCOVER‐2 trial of guselkumab demonstrated robust and durable improvements across psoriatic arthritis (PsA) domains. To specifically evaluate continuous disease control in individual patients, persistence of clinically relevant improvements was assessed, both at consecutive guselkumab dosing visits and over time. Methods Post hoc analyses included biologic‐naïve patients randomized to 100 mg of guselkumab at week 0, week 4, and then every 8 weeks (Q8W). Improvements in joint (minimal clinically important improvement [MCII] in Disease Activity Index for PsA [DAPSA; ≥7.25], clinical DAPSA [cDAPSA; ≥5.7]), skin (Investigator's Global Assessment [IGA] 0/1), and overall disease activity (patient global assessment of arthritis and psoriasis [PtGA Arthritis+Psoriasis; MCII ≥ 15 mm], PsA Disease Activity Score [PASDAS; MCII ≥ 0.8]) were assessed. Proportions of patients with maintenance of DAPSA and cDAPSA MCII at consecutive Q8W guselkumab dosing visits (ie, at weeks 4 and 12, weeks 12 and 20, etc through week 52) and patient‐level durability of response through week 100 (Kaplan‐Meier) were determined. Results Among 248 patients randomized to guselkumab Q8W, 93% to 99% maintained clinical improvement in joint disease at consecutive Q8W dosing visits through week 52 across time periods. Among guselkumab patients achieving MCII by week 24, estimated probabilities of maintenance of clinical improvement 100 weeks post achievement ranged from 68% (IGA 0/1) to 89% (PASDAS MCII). Median times to loss of improvement were not reached; estimated mean weeks of maintenance of improvement were 58.6, 52.4, 75.7, 83.6, and 76.7, respectively, for DAPSA, cDAPSA, IGA, PtGA Arthritis+Psoriasis, and PASDAS. Conclusion Guselkumab provided highly durable patient‐level improvements, both at consecutive Q8W dosing visits for joint disease activity and over time across PsA domains according to physician‐ and patient‐driven assessments.

Objective Upadacitinib improved the signs and symptoms of non‐radiographic axial spondyloarthritis (nr‐axSpA) versus placebo over 14 weeks in the primary analysis of the SELECT‐AXIS 2 nr‐axSpA study. Here, we evaluated the efficacy and safety of upadacitinib through 1 year in patients with nr‐axSpA in SELECT‐AXIS 2. Methods Patients aged at least 18 years diagnosed with nr‐axSpA who fulfilled the 2009 Assessment of SpondyloArthritis International Society (ASAS) classification criteria and were receiving stable background therapy were randomized to upadacitinib 15 mg once daily or placebo for the 52‐week double‐blind period. Efficacy was assessed using non‐responder imputation incorporating multiple imputation (NRI‐MI) and as‐observed analyses for binary endpoints, and mixed‐effects model repeated measures for continuous endpoints. Results Of 314 randomized patients, 259 (upadacitinib, n = 129; placebo, n = 130) completed 52 weeks of treatment. More patients receiving upadacitinib versus placebo achieved ≥40% improvement in ASAS at week 52 (63% vs 43%, NRI‐MI; nominal P < 0.001). Similar treatment effects were observed for the achievement of axSpA Disease Activity Score inactive disease (33% v 11%, NRI‐MI; nominal P < 0.001). Overall, patients receiving upadacitinib versus placebo showed greater improvement in disease activity, inflammation, pain, function, enthesitis, and quality of life through 52 weeks. Adverse events were generally comparable between the treatment groups. No opportunistic infections, malignancies, major adverse cardiovascular events, venous thromboembolic events, inflammatory bowel disease, or deaths were reported in those receiving upadacitinib. Conclusion Treatment with upadacitinib showed sustained efficacy versus placebo with no new safety findings identified through 1 year. These results support the continued favorable benefit–risk profile of upadacitinib treatment for nr‐axSpA.

Objective To evaluate the efficacy and safety of tofacitinib in patients with ankylosing spondylitis (AS) by prior biologic disease‐modifying antirheumatic drug (bDMARD) use. Methods Data from a placebo‐controlled, double‐blind study of patients with active AS were analyzed. Patients received tofacitinib 5 mg twice daily (BID) or placebo to week 16; all received open‐label tofacitinib 5 mg BID to week 48 and were stratified by prior treatment (bDMARD‐naive or tumor necrosis factor inhibitor [TNFi]–inadequate responder [IR], including bDMARD‐experienced [non‐IR]). Disease activity/safety were assessed throughout. Results Of 269 patients, 207 (77%) were bDMARD‐naive; 62 (23%) were in the TNFi‐IR subgroup. TNFi‐IR patients had higher baseline BMI (28.0 vs. 26.1 kg/m2), longer symptom duration (14.4 vs. 13.2 years), and lower concomitant conventional synthetic DMARD use (14.5% vs. 30.9%) than bDMARD‐naive patients. At week 16, for most outcomes, tofacitinib efficacy exceeded placebo for both subgroups and was sustained to week 48. At week 16, tofacitinib versus placebo differences were similar between bDMARD‐naive and TNFi‐IR patients (Assessment in Spondyloarthritis international Society 40 treatment difference [95% confidence interval]: 30.8% [19.1%‐42.6%] vs. 19.4% [1.7%‐37.0%]). Adverse event (AE) proportions were similar between tofacitinib‐treated bDMARD‐naive/TNFi‐IR patients (77.5%/77.4%) at week 48 with no deaths. A numerically higher proportion of tofacitinib‐treated TNFi‐IR versus bDMARD‐naive patients discontinued study drug (12.9% vs. 3.9%) or dose reduced/temporarily discontinued due to AEs (19.4% vs. 11.8%). Conclusion Tofacitinib efficacy exceeded placebo at week 16 for bDMARD‐naive/TNFi‐IR patients and was sustained to week 48. The absolute magnitude of responses was generally greater in bDMARD‐naive patients versus TNFi‐IR patients. More TNFi‐IR versus bDMARD‐naive patients discontinued or dose reduced/temporarily discontinued tofacitinib due to AEs. Small sample size and sample size differences between subgroups limited the interpretation.

Axial spondyloarthritis (axSpA) is a chronic, immune‐mediated disease characterized by inflammatory axial skeleton involvement and extra‐musculoskeletal manifestations. The continuum of axSpA ranges from nonradiographic axSpA (nr‐axSpA) to ankylosing spondylitis, also known as radiographic axSpA; the latter is defined by definitive radiographic sacroiliitis. Human leukocyte antigen B27 (HLA‐B27) is a genetic marker strongly associated with axSpA; it aids in the diagnosis of axSpA, and its absence leads to delay in diagnosis. For HLA‐B27‐negative patients, disease pathogenesis is poorly understood, signs and symptoms are frequently underrecognized, and diagnosis and treatment are commonly delayed. The proportion of HLA‐B27‐negative patients may be higher among non‐White patients and those with nr‐axSpA, who can face additional diagnostic challenges related to lack of definitive radiographic sacroiliitis. In this narrative review, we discuss the role of HLA‐B27 in the diagnosis and pathogenesis of axSpA and highlight various pathways and genes that may be related to axSpA pathogenesis in HLA‐B27‐negative patients. We also emphasize the need to characterize gut microbial communities in these patients. Adequate understanding of clinical and pathological features underlying HLA‐B27‐negative patients with axSpA will improve diagnosis, treatment, and outcomes for this complex inflammatory disease.

Objective Previous analyses of pooled DISCOVER‐1 and DISCOVER‐2 data through Week 24 showed significantly higher rates of dactylitis resolution in patients treated with guselkumab compared with placebo. Here, we investigate associations between dactylitis resolution and other outcomes through 1 year. Methods Patients were randomized 1:1:1 to receive subcutaneous injections of guselkumab 100 mg at Week 0, Week 4, and then every 4 or 8 weeks, or placebo with crossover to guselkumab at Week 24. Independent assessors determined dactylitis severity score (DSS; 0‐3/digit; total = 0‐60). Dactylitis resolution (DSS = 0) (prespecified) and at least 20%, at least 50%, and at least 70% DSS improvement from baseline (post hoc) were determined through Week 52 (nonresponder imputation for treatment failure through Week 24 and for missing data through Week 52). ACR50, tender/swollen joints, low disease activity (LDA) as assessed by composite indices, and radiographic progression (DISCOVER‐2 only) were assessed in patients with dactylitis versus without dactylitis resolution at Week 24 and Week 52. Results Patients with dactylitis at baseline (473 of 1118) had more severe joint and skin disease than those without dactylitis (645 of 1118). At Week 52, approximately 75% of guselkumab‐randomized patients with dactylitis at baseline had complete resolution; approximately 80% had at least 70% DSS improvement. Through Week 52, new‐onset dactylitis (DSS ≥1) was uncommon among patients with a DSS of 0 at baseline. Guselkumab‐randomized patients with dactylitis resolution were more likely to achieve ACR50, at least 50% reduction in tender and swollen joints, and LDA at Week 24 and Week 52 than those without resolution. At Week 52, patients with dactylitis resolution had numerically less radiographic progression from baseline (DISCOVER‐2). Conclusion Through 1 year, approximately 75% of guselkumab‐randomized patients had complete resolution of dactylitis; patients exhibiting resolution were more likely to achieve other important clinical outcomes. Given the high burden of dactylitis, resolution may be associated with better long‐term patient outcomes.

Objective To evaluate efficacy and safety of the interleukin‐23p19‐subunit inhibitor, guselkumab, in DISCOVER‐1 patients with active psoriatic arthritis (PsA) by prior use of tumor necrosis factor inhibitor (TNFi). Methods The phase 3, randomized, placebo‐controlled DISCOVER‐1 study enrolled patients with active PsA (swollen joint count ≥3, tender joint count ≥3, and C‐reactive protein level ≥ 0.3 mg/dl) despite standard therapies; approximately one‐third could have received two or fewer prior TNFi. Patients were randomized to 100 mg of guselkumab every 4 weeks (Q4W); 100 mg of guselkumab at week 0, at week 4, and every 8 weeks (Q8W); or placebo with crossover to guselkumab Q4W at week 24. Efficacy end points of ≥20% and ≥50% improvement in individual American College of Rheumatology (ACR) criteria and achieving the minimal disease activity (MDA) components were summarized by prior TNFi status. Results In DISCOVER‐1, 118 (31%) patients previously received one or two TNFi. As previously reported, rates for acheiving ≥20% improvement in the composite ACR response at week 24 and week 52 were similar in TNFi‐naive and TNFi‐experienced patients randomized to guselkumab Q4W (76% and 68%, respectively) and Q8W (61% and 58%, respectively). Similar trends were observed for response rates of ≥20% and ≥50% improvement in individual ACR criteria and for achieving individual MDA components at week 24; TNFi‐naive patients were more likely to achieve end points related to physical function and pain than TNFi‐experienced patients. Overall, response rates were maintained or increased through week 52 regardless of prior TNFi use. Through week 60 in guselkumab‐treated TNFi‐naive and TNFi‐experienced patients, 62% and 64%, respectively, reported one or more adverse events (AEs); 4% and 6% had serious AEs, respectively. Conclusion Through 1 year, 100 mg of guselkumab Q4W and Q8W provided sustained improvements across multiple domains in both TNFi‐naive and TNFi‐experienced patients with active PsA.

Objective Tumor necrosis factor inhibitors (TNFi) are an effective treatment for non‐radiographic axial spondyloarthritis (nr‐axSpA). To be eligible, however, many authorities require patients with nr‐axSpA to show active sacroiliitis on magnetic resonance imaging (MRI) and/or an elevated C‐reactive protein (CRP) level, possibly resulting in a perception that patients with nr‐axSpA without both factors have only low responses to TNFi treatment. We evaluated clinical responses to certolizumab pegol (CZP) in patients with nr‐axSpA stratified by baseline MRI/CRP status. Methods C‐axSpAnd was a phase 3, multicenter study on CZP in adult patients with active nr‐axSpA and objective signs of inflammation. This analysis assessed efficacy of CZP over the 52‐week randomized, double‐blind, placebo‐controlled period in patients stratified into subgroups based on the presence of active sacroiliitis on MRI and CRP level at baseline. Results CZP‐treated patients across all MRI/CRP subgroups achieved clinical responses greater than placebo. Across outcome measures, CZP‐treated MRI+/CRP+ patients demonstrated the greatest clinical responses, but substantial improvements were also observed in CZP‐treated MRI+/CRP− and MRI−/CRP+ patients. Ankylosing Spondylitis Disease Activity Score Major Improvement response rates at week 52 among CZP‐treated patients (75.6% MRI+/CRP+; 47.5% MRI−/CRP+; and 29.7% MRI+/CRP−) were higher than rates in placebo groups (range: 3.9%‐12.5%). Assessment of SpondyloArthritis international Society 40% response, Bath Ankylosing Spondylitis Disease Activity Index, and Bath Ankylosing Spondyloarthritis Functional Index had similar response patterns, although differences between the CZP‐treated MRI/CRP subgroups were smaller. Clinical responses among CZP‐treated patients were also observed in additional subgroups, including those with low Spondyloarthritis Research Consortium of Canada MRI sacroiliac joint inflammation scores and those with normal baseline CRP levels. Conclusion Our findings indicate that CZP treatment benefits patients with nr‐axSpA across MRI+/CRP+, MRI−/CRP+, and MRI+/CRP− subgroups.

Objective The impact of the COVID‐19 pandemic on patients with inflammatory rheumatic diseases, such as ankylosing spondylitis (AS), has been variable. Here, we assess disease activity and health‐related quality of life (HRQoL) through the pandemic in patients with AS. Methods In the open‐label extension (OLE) of the phase 2b BE AGILE study, patients with AS received 160 mg of subcutaneous bimekizumab every 4 weeks. We assessed Ankylosing Spondylitis Disease Activity Score with C‐reactive protein (ASDAS‐CRP), Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and Ankylosing Spondylitis Quality of Life (ASQoL) scores in the OLE immediately before and during the COVID‐19 pandemic (September 2019 to April 2021). Results A total of 232 patients remained in the BE AGILE OLE and were included in this post hoc study at the start of the analysis period (September 1, 2019); 12 patients had a COVID‐19 treatment‐emergent adverse event, and no cases resulted in death. The number of missed bimekizumab doses due to COVID‐19 (11 doses) was minimal, and missed assessments remained low (≤5%) compared with the prepandemic period. Mean ASDAS‐CRP (1.8), BASDAI (2.4), and ASQoL scores (2.8) in the OLE were low at pre‐pandemic baseline and remained stable at 1.7 to 1.8, 2.2 to 2.4, and 2.0 to 2.8, respectively, across successive 3‐month periods immediately before and during the pandemic. ASDAS‐CRP, BASDAI, and ASQoL stability was consistent across major study countries. Conclusion Disease activity and HRQoL remained stable during the COVID‐19 pandemic in patients with AS receiving bimekizumab in the BE AGILE OLE, with no indication of negative effects on these outcomes.

Objective The objective of this study was to investigate the diagnostic prevalence of ankylosing spondylitis (AS) and axial spondyloarthritis (axSpA) in the United States and examine treatment patterns for these diseases. Methods This retrospective observational cohort study drew from 2006‐2014 data in the US Medicare Fee‐for‐Service and IBM MarketScan databases. AS and axSpA diagnoses were identified through International Classification of Diseases, Ninth Revision [ICD‐9] codes. Diagnostic prevalence (per 10,000 patients) was calculated as patients with AS and axSpA with full insurance coverage in each calendar year divided by the total patients with full insurance coverage in the same year. Two diagnosis definitions were used: definition 1 (D1), one or more relevant ICD‐9 codes from hospital claims or two or more relevant ICD‐9 codes from outpatient claims; definition 2 (D2), one or more codes from hospital/outpatient claims. Primary analyses assessed annual AS and axSpA prevalence (D1); sensitivity analyses assessed annual (D2) and 2‐year prevalence. Patterns in prevalence and treatment use were analyzed descriptively; no statistical tests were performed. Results An increase in AS prevalence (per 10,000 patients) was seen from 2006 to 2014 in primary analyses (Medicare: 2.12‐3.60; MarketScan: 0.85‐1.42) and sensitivity analyses. A similar trend occurred for axSpA (Medicare: 4.39‐6.52; MarketScan: 1.33‐2.21). For Medicare, the proportion of patients with AS (D1) using tumor necrosis factor α inhibitors (TNFis), conventional synthetic antirheumatic drugs (csARDs), nonsteroidal antiinflammatory drugs (NSAIDs), opioids, and glucocorticoids remained relatively stable; for MarketScan, TNFi‐treated patients increased (51.7% to 65.7%) and NSAID‐treated patients decreased (63.5% to 55.7%). Conclusion AS and axSpA prevalence may have increased in the United States between 2006 and 2014. Reasons are unknown, but this may be due to increased disease awareness, among other factors.

Abstract Drug safety is generally established from clinical trials, by pharmacovigilance programs and during observational phase IV safety studies according to drug intended or approved indications. The objective of this study was to estimate the risk of potential adverse drug events (ADEs) associated with drugs repurposed for coronavirus disease 2019 (COVID‐19) treatment in a large‐scale population. Drug claims were used to calculate a baseline medication risk score (MRS) indicative of ADE risk level. Fictitious claims of repurposed drugs were added, one at a time, to patients’ drug regimens to calculate a new MRS and compute a level of risk. Drug claims data from enrollees with Regence health insurance were used and sub‐payer analyses were performed with Medicare and commercial insured groups. Simulated interventions were conducted with hydroxychloroquine and chloroquine, alone or combined with azithromycin, and lopinavir/ritonavir, along with terfenadine and fexofenadine as positive and negative controls for drug‐induced Long QT Syndrome (LQTS). There were 527,471 subjects (56.6% women; mean [SD] age, 47 years [21]) were studied. The simulated addition of each repurposed drug caused an increased risk of ADEs (median MRS increased by two‐to‐seven points, p

The risk‐benefit ratio associated with the use of repurposed drugs to treat severe acute respiratory syndrome‐coronavirus 2 (SARS‐CoV‐2)‐related infectious coronavirus disease 2019 (COVID‐19) is complicated because benefits are awaited, not proven. A thorough literature search was conducted to source information on the pharmacological properties of 5 drugs and 1 combination (azithromycin, chloroquine, favipiravir, hydroxychloroquine, remdesivir, and lopinavir/ritonavir) repurposed to treat COVID‐19. A risk assessment of drug‐induced long QT syndrome (LQTS) associated with COVID‐19 repurposed drugs was performed and compared with 23 well‐known torsadogenic and 10 low torsadogenic risk compounds. Computer calculations were performed using pharmacokinetic and pharmacodynamic data, including affinity to block the rapid component of the delayed rectifier cardiac potassium current (IKr) encoded by the human ether‐a‐go‐go gene (hERG), propensity to prolong cardiac repolarization (QT interval) and cause torsade de pointes (TdP). Seven different LQTS indices were calculated and compared. The US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database was queried with specific key words relating to arrhythmogenic events. Estimators of LQTS risk levels indicated a very high or moderate risk for all COVID‐19 repurposed drugs with the exception for azithromycin, although cases of TdP have been reported with this drug. There was excellent agreement among the various indices used to assess risk of drug‐induced LQTS for the 6 repurposed medications and 23 torsadogenic compounds. Based on our results, monitoring of the QT interval shall be performed when some COVID‐19 repurposed drugs are used, as such monitoring is possible for hospitalized patients or with the use of biodevices for outpatients.

Background Anacetrapib is the only cholesteryl ester transfer protein inhibitor proven to reduce coronary heart disease (CHD). However, its effects on reverse cholesterol transport have not been fully elucidated. Macrophage cholesterol efflux (CEC), the initial step of reverse cholesterol transport, is inversely associated with CHD and may be affected by sex as well as haptoglobin copy number variants among patients with diabetes mellitus. We investigated the effect of anacetrapib on CEC and whether this effect is modified by sex, diabetes mellitus, and haptoglobin polymorphism. Methods and Results A total of 574 participants with CHD were included from the DEFINE (Determining the Efficacy and Tolerability of CETP Inhibition With Anacetrapib) trial. CEC was measured at baseline and 24‐week follow‐up using J774 macrophages, boron dipyrromethene difluoride–labeled cholesterol, and apolipoprotein B–depleted plasma. Haptoglobin copy number variant was determined using an ELISA assay. Anacetrapib increased CEC, adjusted for baseline CEC, risk factors, and changes in lipids/apolipoproteins (standard β, 0.23; 95% CI, 0.05–0.41). This CEC‐raising effect was seen only in men (P interaction=0.002); no effect modification was seen by diabetes mellitus status. Among patients with diabetes mellitus, anacetrapib increased CEC in those with the normal 1‐1 haptoglobin genotype (standard β, 0.42; 95% CI, 0.16–0.69) but not the dysfunctional 2‐1/2‐2 genotypes (P interaction=0.02). Conclusions Among patients with CHD, anacetrapib at a dose linked to improved CHD outcomes significantly increased CEC independent of changes in high‐density lipoprotein cholesterol or other lipids, with effect modification by sex and a novel pharmacogenomic interaction by haptoglobin genotype, suggesting a putative mechanism for reduced risk requiring validation.