FDA Approves Genentech’s Rituxan For Rare Autoimmune Disease Pemphigus Vulgaris

June 8, 2018

Genentech, announced on 6/8/2018 that the U.S. Food and Drug Administration (FDA) has approved Rituxan (rituximab) for the treatment of adults with moderate to severe pemphigus vulgaris (PV), a rare, serious, potentially life-threatening condition characterized by progressive painful blistering of the skin and mucous membranes.

Rituxan is the first biologic therapy approved by the FDA for PV and the first major advancement in the treatment of the disease in more than 60 years. The FDA previously granted Priority Review, Breakthrough Therapy Designation and Orphan Drug Designation to Rituxan for the treatment of PV. With today’s FDA decision, Rituxan is now approved to treat four autoimmune diseases.

“Today’s decision by the FDA provides the first approved treatment option in more than 60 years for patients with pemphigus vulgaris, a potentially life-threatening disease,” said Sandra Horning, M.D., chief medical officer and head of Global Product Development. “We are pleased to offer Rituxan as a new and effective therapy to patients with this serious condition.”

The FDA approval is based on data from the Ritux 3 trial, a Roche-supported, randomized, controlled trial conducted in France that used Roche-manufactured, European Union (EU)-approved rituximab product as the clinical trial material. The study compared the Ritux 3 regimen (EU-approved rituximab product plus short-term corticosteroids [CS]) to CS alone as a first-line treatment in patients with newly diagnosed moderate to severe pemphigus. The primary endpoint of the study was complete remission* at month 24 without the use of steroids for two or more months. Results of the study showed that 90 percent of PV patients treated with the Ritux 3 regimen met the endpoint, compared to 28 percent of PV patients treated with CS alone. These results supported the efficacy of Rituxan in treating patients with moderate to severe PV, while tapering off of CS therapy. These results were published in The Lancet in March 2017

Pemphigus vulgaris is an autoimmune blistering disease affecting the skin and mucous membranes. This rare, potentially life-threatening condition accounts for up to 80% of cases of pemphigus, a group of autoimmune disorders which affect 30,000 to 40,000 people in the United States.


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