Mereo BioPharma Fast Track for Cancer

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FDA has granted Mereo BioPharma Group fast track status for navicixizumab and its use for treating high grade ovarian, primary peritoneal or fallopian tube cancer in patients who have received at least three prior therapies or prior bevacizumab. Navicixizumab is an anti-DLL4/VEGF bispecific antibody and one of two investigative products Mereo acquired through an April merger with OncoMed Pharmaceuticals.

 

“This designation follows our successful Type B End of Phase 1 meeting with the FDA held in July 2019 regarding a potential pathway for accelerated approval for navicixizumab where the FDA agreed in principle on an outline for a Phase 2 clinical trial that could potentially support accelerated approval of navicixizumab in patients with ovarian cancer who have become resistant to prior therapies,” the company says.

 

Navicixizumab is designed to inhibit both Delta-like ligand 4 in the Notch cancer stem cell pathway and vascular endothelial growth factor to spur anti-tumor responses while preventing certain angiogenic-related toxicities, the company says. “In preclinical studies, navicixizumab demonstrated robust in vivo anti-tumor efficacy across a range of solid tumor xenografts, including colon, ovarian, lung and pancreatic cancers, among others,” it says. Data from a Phase 1a study with single-agent navicixizumab showed that 19 of 66 patients with various types of refractory solid tumors had tumor shrinkage following treatment, it adds.

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