Johnson & JohnsonTremfya met primary and secondary endpoints in the Phase 4 STAR psoriatic arthritis study, supporting expansion of its immunology growth drivers.

Johnson & Johnson announced top-line findings from its Phase 4 STAR study evaluating Tremfya in biologic-naive adults with active psoriatic arthritis and axial involvement, with the drug meeting primary and secondary endpoints. The study is the first randomized, placebo-controlled trial to prospectively evaluate an IL-23 inhibitor using objective MRI assessments, showing improvements in axial symptoms alongside MRI-confirmed reductions in joint inflammation. The result supports J&J's strategy of expanding its immunology growth drivers as legacy products face pressure; in Q2 2026 the company reported operational sales growth of 5.6% to $25.3 billion, led by 6.8% operational growth in Innovative Medicine, and raised full-year 2026 sales guidance to $101.1 billion at the midpoint, or 7.3% growth, with adjusted operational EPS guidance of $11.58. J&J still faces an approximately 760-basis-point operational growth drag from declining Stelara sales due to biosimilar entry, and MedTech growth moderated to 3.6% operational growth in the quarter. Tremfya's expanded addressable population must scale rapidly to replace Stelara's multi-billion-dollar cash flow stream, while litigation reserves and restructuring charges remain near-term headwinds.
Johnson & JohnsonTremfya met primary and secondary endpoints in the Phase 4 STAR psoriatic arthritis study, supporting expansion of its immunology growth drivers.
Eli Lilly and Company
Pfizer Inc