Zai Lab Limited today announced the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to ZL-1310, the Company’s potential first-in-class Delta-like ligand (DLL3) antibody-drug conjugate (ADC), for the treatment of extensive-stage small cell lung cancer (ES-SCLC). ZL-1310, which is being evaluated in an ongoing global Phase 1a/1b clinical trial (NCT06179069), previously received an Orphan Drug designation for SCLC from the FDA. The company will present updated data at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting.

“The FDA’s decision to grant Fast Track designation to ZL-1310 highlights the significant need for expanded treatment options for patients with SCLC and represents an important step in our efforts to advance a novel therapeutic option as quickly as possible,” said Rafael G. Amado, M.D., President, Head of Global Research and Development, Zai Lab. “This designation reinforces the clinical progress we have achieved for ZL-1310 to-date, and we remain on track to initiate a pivotal study in small cell lung cancer later this year, positioning us for a potential accelerated approval in 2027.”

Fast Track designation facilitates the expedited development and review of new drugs to address an unmet medical need or treat serious or life-threatening diseases. Benefits of this designation include more frequent engagements with the FDA to discuss the drug’s clinical development plan and eligibility for Accelerated Approval and Priority Review if relevant criteria are met. More information on the Fast Track process is available here.

Zai Lab will hold an investor conference call and webcast to highlight updated ZL-1310 data at ASCO and outline the next steps in clinical development.

Source: businesswire.com