Fennec Pharma ‘Complete Response’ on Pedmark
FDA has issued Fennec Pharmaceuticals a complete response letter on its NDA for Pedmark (sodium thiosulfate), for intravenous administration for preventing ototoxicity associated with cisplatin chemotherapy in pediatric patients older than one month of age with localized, non-metastatic, solid tumors. The agency’s letter cited manufacturing concerns from a pre-approval inspection that must be resolved prior to approving the drug. The company says it plans to request a Type A meeting to discuss the issues and other matters in the letter that addressed steps required for resubmitting the NDA.
Fennec says it is common for platinum-based therapies to cause ototoxicity in pediatric patients. The submission was based on data from two Phase 3 clinical studies of survival and reduction of ototoxicity — The Clinical Oncology Group Protocol ACCL0431 and SIOPEL 6. Data showed that sodium thiosulfate protects against cisplatin-induced hearing loss in children and is not associated with serious adverse events, the company says.