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Teva And Regeneron Announce Positive Phase 3 Fasinumab Results

Teva Pharmaceutical Industries Ltd. (TEVA) and Regeneron Pharmaceuticals Inc. (REGN) announced positive topline results from a Phase 3, randomized, double-blind, placebo-controlled study of fasinumab in patients with chronic pain from osteoarthritis (OA) of the knee or hip. At the week 16 primary efficacy analysis, the study met both co-primary endpoints and all key secondary endpoints.

Fasinumab-treated patients experienced significantly less pain and significantly improved functional ability from baseline compared to placebo.

Interim safety data indicate that fasinumab was generally well tolerated, with similar adverse events (AEs) as those observed in previous fasinumab trials. At week 16, treatment discontinuations due to AEs had occurred in 6% of the placebo group patients, 5% of the fasinumab 1 mg every eight weeks group patients and 6% of the fasinumab 1 mg every four weeks group patients.

The fasinumab safety program was designed to capture all arthropathies (joint damage), including those identified due to symptoms and those identified by regularly-scheduled radiographic monitoring, the first of which was scheduled at week 24. Among the approximately 65% of patients who had completed their first radiographic assessment, the placebo-adjusted rate of adjudicated arthropathies was approximately 2%.

The majority of arthropathies were captured by the regularly-scheduled radiographic monitoring and involved isolated joint space narrowing, called RPOA-1 (rapid progressive OA type 1). No cases of osteonecrosis have been identified to date in this study.

The companies plan to present detailed results at an upcoming medical congress.

Regeneron and Teva are jointly developing fasinumab as part of a global collaboration agreement. In Japan and 10 other Asian countries, Mitsubishi Tanabe Pharma Corporation holds exclusive development and commercial rights for fasinumab.

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