Zafgen (ZFGN) Plunges As FDA Puts Hold On Diabetes Drug Trial

 | Nov 27, 2018 05:47AM ET

Shares of clinical-stage biopharmaceutical company Zafgen, Inc. (NASDAQ:ZFGN) slumped 40.5% after the company announced that the FDA has placed a clinical hold on the Investigational New Drug Application (IND) for its first U.S. clinical trial of ZGN-1061.

ZGN-1061, the company’s second-generation, investigational MetAP2 inhibitor, is currently being evaluated for the treatment of type 2 diabetes.

The company received a letter from the FDA last week mentioning the clinical hold, citing the possibility of cardiovascular (CV) safety risk as seen in the company’s prior compound.

The agency has outlined multiple potential paths for moving forward, including nonclinical or clinical options, to address these concerns in the ongoing development of the candidate.

As a result, Zafgen plans to assess these options and request a Type A meeting with the FDA to discuss further actions that can be taken regarding the program.

Meanwhile, Zafgen continues to advance its ongoing phase II trial of ZGN-1061 outside the United States, which includes a 1.8 mg dose cohort. Dosing in this trial was recently completed and no CV safety signals have been observed to date. Top-line data from the trial are expected early 2019.

Previously, results from 12 weeks showed that ZGN-1061 met all primary endpoints, demonstrating proof-of-concept efficacy with robust A1C lowering effects, and a favorable safety and tolerability profile generally comparable to placebo.

Zafgen now expects the cash runway to extend through calendar year 2020, given the delay of additional clinical development for the candidate.

Zafgen’s shares have gained 17.1% in the year so far, compared with the industry’s decline of 7.7%.