09/02/2026 Krystal Biotech's KB707 received the FDA RMAT Designation for advanced or metastatic NSCLC Krystal Biotech's KB707 received the FDA RMAT Designation for advanced or metastatic NSCLC ( Ref ) The US FDA granted the Regenerative Medicine Advanced Therapy (RMAT) designation to Krystal Biotec's KB707 (redosable immunotherapy designed to drive sustained, localized expression of interleukin-2 and interleukin-12 in the tumor microenvironment) for the treatment of advanced