Lilly Scraps Lupus Development Program
Eli Lilly says it is discontinuing its Phase 3 development program for JAK inhibitor Olumiant (baricitinib) in adults with active systemic lupus erythematosus based on top-line efficacy results from two pivotal Phase 3 trials (SLE-BRAVE-I and II). “In SLE-BRAVE-I, the baricitinib 4-mg oral dose met the primary endpoint, demonstrating a statistically significant reduction in disease activity as measured by the proportion of adults with active lupus who achieved an SRI-4 response (a composite measurement of overall disease activity) at Week 52 compared to placebo,” the company says. However, the SLE-BRAVE-II study did not meet the primary endpoint of SRI-4 response, and key secondary endpoints were not met in either study. Olumiant is currently approved for treating adults with moderately to severely active rheumatoid arthritis after treatment with one or more tumor necrosis factor blockers.
Meanwhile, Lilly says it is in ongoing discussion FDA about the status of a supplemental NDA for Olumiant for the treatment of adults with moderate-to-severe atopic dermatitis. “At this point, the company does not have alignment with the FDA on the indicated population,” it says. “Given the agency's position, there is a possibility that this could lead to a Complete Response Letter (CRL). The efficacy and safety profile of Olumiant was evaluated in eight atopic dermatitis clinical trials (six double-blind, randomized, placebo-controlled studies and two long-term extension studies) inclusive of patients whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. The safety profile in these trials was consistent with previously published Olumiant data.”
JAK inhibitors have recently faced increased regulatory scrutiny based on concerns that arose from an FDA-required safety study when Pfizer’s Xeljanz was approved in 2012 for rheumatoid arthritis. In 2/2019 and 7/2019, FDA warned that interim trial results showed an increased risk of blood clots and death with the 10 mg twice daily dosage, and as a result, it approved a Boxed Warning. AbbVie’s similar eczema drug, Rinvoq, also faced similar regulatory hurdles before being finally approved by FDA earlier this month, as well as Pfizer’s Cibinqo.