FDA ‘Complete Response’ on Antares Testosterone Therapy
FDA has issued Antares Pharma a complete response letter on its NDA for Xyosted (testosterone enanthate) injection for testosterone replacement therapy. The letter identified two deficiencies related to clinical data, according to the company. “Based on findings in studies QST-13-003 and QST-15-005, the FDA is concerned that Xyosted could cause a clinically meaningful increase in blood pressure,” it says. “In addition, the letter also raised a concern regarding the occurrence of depression and suicidality.” FDA did not cite any chemistry, manufacturing and controls, device or efficacy issues related to Xyosted. Antares plans to request a meeting with the agency to further understand the deficiencies and to agree to a path forward for approval.