Momenta Phama (MNTA) Announces M923 Phase 3 Met Primary Endpoint in Chronic Plaque Psoriasis

November 29, 2016 8:01 AM EST
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Momenta Pharmaceuticals, Inc. (Nasdaq: MNTA) announced that the confirmatory Phase 3 clinical study of M923, a biosimilar HUMIRA® (adalimumab) candidate developed in collaboration with Baxalta, now part of Shire plc, in patients with moderate-to-severe chronic plaque psoriasis, met its primary endpoint. The proportion of subjects in the study who achieved the primary endpoint, at least 75% reduction in the Psoriasis Area and Severity Index (PASI-75) following 16 weeks of treatment, was equivalent between M923 and HUMIRA. The estimated difference in responders was well within the pre-specified confidence interval, confirming equivalence.

Equivalence was also achieved in all secondary efficacy endpoints, including the achievement of PASI-50, PASI-90, proportion achieving clear or near-clear skin, and change from baseline in absolute PASI score. Adverse events were comparable in terms of type, frequency, and severity, and were consistent with the published safety data for HUMIRA.

“These positive data support the biosimilarity of M923, and further advance us toward our goal of gaining regulatory approval for this important program,” said Craig A. Wheeler, President and Chief Executive Officer of Momenta Pharmaceuticals. “These data also validate the strength of our technology and show our commitment to expanding treatment access and providing additional options for patients who suffer from chronic inflammatory diseases.”

This was a confirmatory, randomized, double-blind, multicenter study evaluating the efficacy, safety and immunogenicity of M923 in adult patients with moderate-to-severe chronic plaque psoriasis. Patients received up to 48 weeks of treatment with M923, HUMIRA, or HUMIRA alternating with M923. The full dataset from this study will be presented at future conferences and in future publications.

In 2011, Momenta Pharmaceuticals and Baxter Bioscience (subsequently Baxalta), now part of Shire, entered into the collaboration to develop and commercialize M923. Earlier this year, Shire announced it had made a strategic decision to end its biosimilars program and is now in the process of transitioning M923 to Momenta Pharmaceuticals, enabling Shire to further pursue its focus on serving people with rare diseases and other highly specialized conditions.

About M923, a proposed biosimilar of HUMIRA® (adalimumab)

M923 is being developed as a biosimilar candidate for HUMIRA, an anti-TNF monoclonal antibody. HUMIRA, the largest selling therapeutic on the market today, is a significant intervention for patients with autoimmune/inflammatory diseases. Adalimumab is used to treat many such conditions including rheumatoid arthritis, juvenile idiopathic arthritis, psoriatic arthritis, ankylosing spondylitis, Crohn's disease, ulcerative colitis, plaque psoriasis, hidradenitis suppurativa and uveitis.

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