Spondyloarthritis & psoriatic arthritis

Differences in treatment response between female and male psoriatic arthritis patients during IL-12/23 therapy with or without methotrexate: post hoc analysis of results from the randomised MUST trial

RMD OpenPublished Post hoc analysis of the MUST randomised trial

Authors' conclusion

Females and males with PsA had differences in baseline characteristics, treatment responses and adverse events during therapy.

Study context

Population
Patients with active PsA initiating open-label ustekinumab
Participants
166 patients
Comparison
Females vs males with PsA on open-label ustekinumab, randomised to methotrexate (MTX) or placebo
  • Ustekinumab+MTX, femalen = 37
  • Ustekinumab+MTX, malen = 50
  • Ustekinumab+placebo, femalen = 32
  • Ustekinumab+placebo, malen = 47reference
Methodological detailsexploratory, sex-stratified, investigator-initiated, multicentre, phase 3b
  • Exploratory
  • Sex-stratified
  • Investigator-initiated
  • Multicentre
  • Phase 3b

Primary result

As reported in the abstract

Treatment response by sex · week 24
  • Both females and males showed marked improvements to ustekinumab with or without MTX
  • Females generally had numerically reduced treatment responses vs males; differences not statistically significant

Further findings

Baseline characteristics by sex

Females had significantly longer time since PsA diagnosis and greater impairment in physical function, but similar joint counts

Effect of MTX

No overall effect of MTX on treatment outcomes; associated with faster enthesitis responses in males only

Safety

Adverse events

Generally comparable; females on ustekinumab+MTX had higher levels of gastrointestinal disorders

Original publication

Differences in treatment response between female and male psoriatic arthritis patients during IL-12/23 therapy with or without methotrexate: post hoc analysis of results from the randomised MUST trial. RMD Open. Published 19 December 2023. doi:10.1136/rmdopen-2023-003538

Composed by AI from the published abstract and checked against it. How Briefs are made →

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