OncoMed to Present Clinical Data for Anti-RSPO3 and Anti-DLL4/VEGF Bispecific Antibody at the 28th EORTC-NCI-AACR Molecular Targets and Cancer Therapeutics Symposium

REDWOOD CITY, Calif., Nov. 15, 2016 -- OncoMed Pharmaceuticals Inc. (NASDAQ:OMED) announced today it will present first-in-human data from its Phase 1 clinical trials of anti-RSPO3 (OMP-131R10) and anti-DLL4/VEGF bispecific antibody (OMP-305B83) at the upcoming 28th EORTC-NCI-AACR Molecular Targets and Cancer Therapeutics Symposium being held November 28 – December 2, 2016 in Munich, Germany.  Abstracts for the presentations have been posted to www.ecco-org.eu/ENA.

Data will be presented on Tuesday, November 29, 2016: 

Poster #P039; Abstract #68: Initial results from a Phase 1a/b study of OMP-131R10, a first-in-class anti-RSPO3 antibody, in advanced solid tumors and previously treated metastatic colorectal cancer (CRC)
Session: Molecular targeted agents I
Presenting author: Johanna Bendell, M.D., Sarah Cannon Research Institute

Poster #P057; Abstract #87: A first-in-man Phase 1a study of the bispecific anti-DLL4/anti-VEGF antibody OMP-305B83 in patients with previously treated solid tumors
Session: Molecular targeted agents I
Presenting author: Kathleen Moore, M.D., University of Oklahoma Stephenson Cancer Center

The posters will be available on OncoMed’s website following the presentation at www.oncomed.com.  

About Anti-RSPO3
OncoMed is currently enrolling patients in an ongoing Phase 1a/b clinical trial of anti-RSPO3 that was started in July 2015.  The Phase 1a/b trial initially enrolled patients with advanced refractory solid tumors and includes an expansion arm for biomarker-selected patients to receive single-agent therapy.  The Phase 1b portion, which began enrollment in January 2016, is testing anti-RSPO3 with FOLFIRI in patients with second-line metastatic colorectal cancer.  Anti-RSPO3 is believed to be the first drug candidate in its class to target the R-spondin-LGR pathway, an important cancer stem cell pathway identified by OncoMed researchers.

About Anti-DLL4/VEGF
OncoMed initiated a single-agent study of its anti-DLL4/VEGF bispecific in January 2015 in patients with advanced refractory solid tumors.  Dose escalation is completed in the Phase 1a trial and enrollment in an expansion cohort is ongoing.  The anti-DLL4/VEGF bispecific antibody is designed to combine the anti-cancer stem cell, dysangiogenic and immunotherapy mechanisms of anti-DLL4 with the anti-angiogenic activity of an anti-VEGF agent.  The bispecific antibody was discovered using OncoMed's proprietary MAbTrap™ antibody display technology, which enables the rapid identification of monoclonal antibodies that bind targets with high affinity and specificity.  The antibody is the first program based on OncoMed's BiMAb™ bispecific platform technology to enter clinical testing.

About OncoMed Pharmaceuticals
OncoMed Pharmaceuticals is a clinical-stage company focused on discovering and developing novel anti-cancer stem cell and immuno-oncology therapeutics.  OncoMed has seven anti-cancer therapeutic candidates in clinical development, including demcizumab (anti-DLL4, OMP-21M18), tarextumab (anti-Notch2/3, OMP-59R5), brontictuzumab (anti-Notch1, OMP-52M51), anti-DLL4/VEGF bispecific antibody (OMP-305B83), vantictumab (anti-FZD7, OMP-18R5), ipafricept (FZD8-Fc, OMP-54F28), and anti-RSPO3 (OMP-131R10), which each target key cancer stem cell signaling pathways including Notch, Wnt and R-spondin LGR.  OncoMed is advancing its wholly owned GITRL-Fc candidate and an undisclosed immuno-oncology candidate (IO#2) toward clinical trials in the 2016-2017 timeframe.  OncoMed has formed strategic alliances with Celgene Corporation, Bayer Pharma AG and GlaxoSmithKline (GSK). 

Additional information can be found at the company's website: www.oncomed.com.

Contact:
Michelle Corral
Senior Director, Investor Relations and Corporate Communications
OncoMed Pharmaceuticals 
[email protected]
(650) 995-8373