Galera Therapeutics submits NDA for avasopasem for SOM

Galera Therapeutics announced the submission of its New Drug Application to the U.S. Food and Drug Administration for avasopasem for radiotherapy-induced severe oral mucositis in patients with head and neck cancer undergoing standard-of-care treatment. The FDA has granted Fast Track and Breakthrough Therapy designations to avasopasem for the reduction of SOM induced by radiotherapy. SOM is characterized by the inability to eat solid food or drink liquids and may require the surgical placement of feeding tubes to maintain nutrition and hydration. There are currently no FDA-approved drugs to reduce SOM for these patients. The NDA is supported by the randomized, double-blinded, placebo-controlled Phase 3 ROMAN and Phase 2b GT-201 trials which enrolled a total of 678 patients. Results from the 455-patient ROMAN trial demonstrated a clinically meaningful reduction in patients’ SOM burden across multiple endpoints, with statistically significant reductions on the primary endpoint of incidence of SOM and the secondary endpoint of number of days of SOM, more than halving the median number of days a patient suffered SOM. Avasopasem also showed clinically meaningful reductions in severity of SOM compared to placebo. Exploratory analyses, such as time to SOM onset and SOM incidence at various landmarks of radiotherapy delivered, further demonstrated the clinical benefit of avasopasem in reducing the burden of SOM. Avasopasem was generally well tolerated compared to placebo. Overall, the adverse event incidences noted in the clinical trials were consistent with the interpretation that avasopasem was not associated with a clinically meaningful increase in the AE profile expected for the target patient population receiving standard-of-care chemoradiation therapy. In addition, a prospectively defined exploratory analysis looking at renal function through 12 months follow-up showed that avasopasem reduced cisplatin-induced chronic kidney disease by 50%.