PMID- 35397092 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2198-6576 (Print) IS - 2198-6584 (Electronic) IS - 2198-6576 (Linking) VI - 9 IP - 3 DP - 2022 Jun TI - Responses to Ixekizumab in Male and Female Patients with Psoriatic Arthritis: Results from Two Randomized, Phase 3 Clinical Trials. PG - 919-933 LID - 10.1007/s40744-022-00445-w [doi] AB - INTRODUCTION: Differences in psoriatic arthritis (PsA) treatment response between sexes for ixekizumab, an interleukin-17A antagonist, are largely unexplored. This analysis used data from randomized clinical trials (RCTs) evaluating ixekizumab to study differences in treatment response between male and female patients with PsA. METHODS: We used pooled data from patients enrolled in SPIRIT-P1 and SPIRIT-P2 (NCT01695239 and NCT02349295, respectively), phase 3 RCTs evaluating ixekizumab every 4 and 2 weeks in patients with active PsA. Subgroups of patients were defined by sex (male, female). Efficacy was measured by the proportion of male and female patients achieving American College of Rheumatology 20%/50%/70% improvement criteria (ACR20/50/70), minimal disease activity or very low disease activity (MDA/VLDA), and Disease Activity Index for Psoriatic Arthritis (DAPSA) scores representing low disease activity (LDA) or remission through week 156. Changes from baseline in components of the above measures were also assessed through week 156. RESULTS: Compared to male patients at baseline, female patients were older, had higher body mass index and lower C-reactive protein levels, and had worse tender joint count, Health Assessment Questionnaire Disability Index, and Leeds Enthesitis Index scores. Through week 156, female patients in all treatment arms had lower response rates than male patients in all analyzed composite measures (ACR20/50/70; MDA/VLDA; DAPSA LDA/remission), with significant differences observed at multiple timepoints in both ixekizumab treatment arms. Female patients also had smaller numeric changes from baseline in the composite measures' individual components. CONCLUSION: Compared to female patients, male patients had greater response rates in ACR20/50/70, MDA/VLDA, and DAPSA LDA/remission and numerically larger improvements in these measures' individual components, although clinical significance is unclear. Continued efforts to understand sex differences in treatment response may provide insights that can help optimize clinical decision making. TRIAL REGISTRATION: ClinicalTrials.gov identifiers, NCT01695239 and NCT02349295. CI - (c) 2022. The Author(s). FAU - Eder, Lihi AU - Eder L AD - Department of Medicine, Women's College Hospital, University of Toronto, 76 Grenville St, 6th Floor, Toronto, ON, Canada. Lihi.eder@wchospital.ca. FAU - Tony, Hans-Peter AU - Tony HP AD - Rheumatology/Clinical Immunology, University Hospital of Wurzburg, Wurzburg, Germany. FAU - Odhav, Satish AU - Odhav S AD - Arthritis Clinic, Jackson, TN, USA. FAU - Agirregoikoa, Eva Galindez AU - Agirregoikoa EG AD - Rheumatology Department, University Hospital Basurto, Bilbao, Spain. FAU - Korkosz, Mariusz AU - Korkosz M AD - Jagiellonian University Medical College, Krakow, Poland. FAU - Schwartzman, Sergio AU - Schwartzman S AD - The Hospital for Special Surgery, New York, NY, USA. FAU - Sprabery, Aubrey Trevelin AU - Sprabery AT AD - Eli Lilly and Company, Indianapolis, IN, USA. FAU - Gellett, Amanda M AU - Gellett AM AD - Eli Lilly and Company, Indianapolis, IN, USA. FAU - Park, So Young AU - Park SY AD - Eli Lilly and Company, Indianapolis, IN, USA. FAU - Bertram, Clinton C AU - Bertram CC AD - Eli Lilly and Company, Indianapolis, IN, USA. FAU - Ogdie, Alexis AU - Ogdie A AD - Penn Medicine, Philadelphia, PA, USA. LA - eng SI - ClinicalTrials.gov/NCT01695239 SI - ClinicalTrials.gov/NCT02349295 PT - Journal Article DEP - 20220409 PL - England TA - Rheumatol Ther JT - Rheumatology and therapy JID - 101674543 PMC - PMC9127019 OTO - NOTNLM OT - Ixekizumab OT - Outcome measures OT - Psoriatic arthritis OT - Sex differences OT - Women's health EDAT- 2022/04/10 06:00 MHDA- 2022/04/10 06:01 PMCR- 2022/04/09 CRDT- 2022/04/09 12:03 PHST- 2022/01/21 00:00 [received] PHST- 2022/03/15 00:00 [accepted] PHST- 2022/04/10 06:00 [pubmed] PHST- 2022/04/10 06:01 [medline] PHST- 2022/04/09 12:03 [entrez] PHST- 2022/04/09 00:00 [pmc-release] AID - 10.1007/s40744-022-00445-w [pii] AID - 445 [pii] AID - 10.1007/s40744-022-00445-w [doi] PST - ppublish SO - Rheumatol Ther. 2022 Jun;9(3):919-933. doi: 10.1007/s40744-022-00445-w. Epub 2022 Apr 9.