Rheumatoid arthritis

Evaluation of BMS-986142, a reversible Bruton's tyrosine kinase inhibitor, for the treatment of rheumatoid arthritis: a phase 2, randomised, double-blind, dose-ranging, placebo-controlled, adaptive design study

Lancet RheumatolPublished Randomised controlled trial

  • 350 mg dose discontinued at pre-specified interim analysis (elevated liver enzymes, absence of benefit vs placebo)

Study context

Population
Adults (≥18 years) with RA diagnosed ≥16 weeks before screening and inadequate response to MTX, with or without inadequate response to up to two TNFione post-randomisation exclusion
Participants
248 adults
Comparison
Oral BMS-986142 vs placebo once daily for 12 weeks, on background MTX
  • BMS-986142 100 mgn = 73
  • BMS-986142 200 mgn = 73
  • BMS-986142 350 mgn = 26
  • Placebon = 75reference
Primary endpoint
Co-primary: ACR20 and ACR70 response
Follow-up
Week 12
Methodological detailsphase 2, double-blind, dose-ranging, placebo-controlled, adaptive design, multicentre (14 countries, 79 sites), stratified by prior treatment status and geographical region, pre-specified interim analysis
  • Phase 2
  • Double-blind
  • Dose-ranging
  • Placebo-controlled
  • Adaptive design
  • Multicentre (14 countries, 79 sites)
  • Stratified by prior treatment status and geographical region
  • Pre-specified interim analysis

Primary result

As reported in the abstract

Co-primary: ACR20 response
Each group vs placeboEstimate of difference (95% CI)P value
100 mg
4.9(−10.2 to 20.1)
P = 0.52
200 mg
11.8(−3.6 to 27.2)
P = 0.14

Further findings

OutcomeBMS-986142 100 mgBMS-986142 200 mgPlaceboEstimate of difference (95% CI)P value
Co-primary: ACR70 response · week 12100 mgvs Placebo4%10%4%0.1 (−16.0 to 16.5)nominal p=1.00
Co-primary: ACR70 response · week 12200 mgvs Placebo5.6 (−10.5 to 21.9)nominal p=0.21

Deaths

No deaths

Safety

Events

OutcomeBMS-986142 100 mgPlacebo
Serious adverse events24
  • Serious adverse events: placebo: mouth ulceration, open globe injury, RA flare, endometrial adenocarcinoma; 100 mg: angina pectoris, intestinal obstruction

Elevated liver enzymes, 350 mg

350 mg dose discontinued at pre-specified interim analysis due to elevated liver enzymes and absence of benefit vs placebo

Original publication

Evaluation of BMS-986142, a reversible Bruton's tyrosine kinase inhibitor, for the treatment of rheumatoid arthritis: a phase 2, randomised, double-blind, dose-ranging, placebo-controlled, adaptive design study. Lancet Rheumatol. Published May 2023. doi:10.1016/s2665-9913(23)00089-9

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