FDA issues complete response letter to Merck’s ridaforolimus NDA

Published on June 6, 2012 at 3:01 AM · No Comments

Merck (NYSE: MRK), known as MSD outside the United States and Canada, announced today that the U.S. Food and Drug Administration (FDA) has issued a complete response letter regarding the New Drug Application (NDA) for ridaforolimus. Ridaforolimus is an investigational oral mTOR inhibitor under development for maintenance therapy for patients with metastatic soft tissue or bone sarcoma who have stable disease or better after four or more cycles of chemotherapy.    

The complete response letter states that FDA cannot approve the application in its present form, and that additional clinical trial(s) would need to be conducted to further assess safety and efficacy. Merck also is in ongoing discussions with health authorities in Europe and other countries as part of their application procedures for ridaforolimus for the treatment of metastatic soft-tissue or bone sarcomas in patients who had a favorable response to chemotherapy. Additionally, Merck is studying ridaforolimus in combination with other mechanisms in several tumor types.

"Merck remains confident in the potential of ridaforolimus," said Eric Rubin, M.D., vice president, Clinical Research Oncology, Merck. "We will continue to work closely with the FDA to define potential paths forward for this investigational therapy."

Source:

Merck    

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