REDWOOD CITY, CA, USA I June 13, 2014 I OncoMed Pharmaceuticals Inc. (Nasdaq:OMED), today discussed the vantictumab (anti-Fzd7, OMP-18R5) and Fzd8-Fc (OMP-54F28) Phase 1 Wnt pathway programs with the U.S. Food and Drug Administration (FDA). The FDA informed the company that a partial clinical hold has been placed on Phase 1 clinical trials of vantictumab until revised protocols have been submitted and concurred with. The company reported that, according to the FDA, this action is being taken in view of OncoMed’s decision to voluntarily halt enrollment and dosing in the ongoing vantictumab Phase 1 trials.

The FDA concurred with OncoMed’s plan to continue dosing of a patient in the single-agent Phase 1a vantictumab clinical trial who has remained on treatment for greater than 700 days progression free without significant drug-related adverse effects. The FDA also concurred with OncoMed’s plan to continue dosing a patient in the single-agent Phase 1a Fzd8-Fc clinical trial who has remained on treatment for greater than 390 days progression free without significant drug-related adverse effects.

“As we announced this morning, we are analyzing the data in hand with the investigators and academic bone expert advisors to assess the adverse events observed in these trials and develop revised clinical trial protocols. Today’s discussion with the FDA advanced the process to determine the best path forward. We remain committed to evaluating vantictumab and Fzd8-Fc as possible therapies for cancer patients,” stated Paul J. Hastings, Chairman and CEO of OncoMed.

About OncoMed Pharmaceuticals

OncoMed Pharmaceuticals is a clinical-stage company focused on discovering and developing novel therapeutics targeting cancer stem cells (CSCs). OncoMed has five anti-cancer product candidates in clinical development, including demcizumab (anti-DLL4, OMP-21M18), tarextumab (anti-Notch 2/3, OMP-59R5), anti-Notch1 (OMP-52M51), vantictumab (anti-Fzd7, OMP-18R5), and Fzd8-Fc (OMP-54F28), which target key cancer stem cell signaling pathways including Notch and Wnt. OncoMed has two other antibodies in preclinical development, anti-DLL4/anti-VEGF bispecific (OMP-305B83) and anti-RSPO3 (OMP-131R10), with Investigational New Drug filings planned for late 2014 or early 2015. OncoMed is also pursuing discovery of additional novel anti-CSC product candidates. OncoMed has formed strategic alliances with Celgene Corporation, Bayer Pharma AG and GlaxoSmithKline. Additional information can be found at the company’s website: www.oncomed.com.

SOURCE: OncoMed Pharmaceuticals