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September 14, 2020

Treatment for rare esophagus disease deemed breakthrough therapy by FDA

Dupixent shown to reduce esophageal inflammation

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Rare esophageal disease Lionel Guericolas/Sipa LOLS10在线直播下注A

LOLS10在线直播下注 Dupixent, a drug developed by Sanofi and Regeneron Pharmaceuticals, has been deemed a breakthrough therapy for treating eosinophilic esophagitis.

The U.S. Food and Drug and Administration is accelerating the development of a promising drug to treat eosinophilic esophagitis, a chronic and progressive inflammatory disease that makes it difficult to swallow. 

The FDA has designated Dupixent as a breakthrough therapy, Regeneron Pharmaceuticals, Inc. and Sanofi announced Monday. 

There currently are not any FDA-approved treatments for eosinophilic esophagitis. But early clinical data suggests Dupixent can reduce symptoms and inflammation in patients 12 years and older.

The FDA's breakthrough therapy designation accelerates the development and review of drugs that treat serious or life-threatening conditions. In the U.S., there are nearly 160,000 patients with eosinophilic esophagitis who are being treated with unapproved therapies, and about 50,000 of them have failed multiple treatments.

People with  have high levels of immunoglobulin E and eosinophils, white blood cells that boost inflammation. Over time, that inflammation leads to the scarring and narrowing of the esophagus. Food can get stuck in the throat, prompting a medical emergency.

LOLS10在线直播下注In 81 patients were randomly assigned to receive 300mg of Dupixent or a placebo for 24 weeks. The patients who received Dupixent experienced reductions in symptoms, esophageal inflammation and abnormal endoscopic findings in the esophagus.

The trial is still ongoing, but so far researchers have reported positive safety and efficacy findings. LOLS10在线直播下注Additional patients are being enrolled in Part B. Patients from the first two parts will have extended treatment in Part C. 

Dupixent, the brand name for dupilumab, previously has been approved to treat moderate to severe atopic dermatitis and for use in combination with other asthma medicines to manage moderate to severe eosinophilic asthma. 

In 2017, it was designated an orphan for the potential treatment of eosinophilic esophagitis. This designation is given to investigational drugs targeted for treatment of rare diseases affecting less than 200,000 Americans.

Regeneron and Sanofi also are studying whether generic dupilumab can treat other inflammatory diseases, including pediatric asthma, pediatric atopic dermatitis, chronic obstructive pulmonary disease and food and environmental allergies.

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