A Study of Onartuzumab (MetMAb) in Combination With mFOLFOX6 in Patients With Metastatic Human Epidermal Growth Factor Receptor 2 (HER2) Negative Gastroesophageal Cancer

Summary

This randomized, multicenter, double-blind, placebo-controlled study will evaluate the efficacy and safety of onartuzumab (MetMAb) in combination with mFOLFOX6 in patients with metastatic HER2-negative adenocarcinoma of the stomach or gastroesophageal junction. Patients will be randomized in a 1:1 ratio to receive either onartuzumab (MetMAb) or placebo in combination with mFOLFOX6. Patients may continue to receive onartuzumab (MetMAb) or placebo until disease progression, unacceptable toxicity, patient or physician decision to discontinue treatment.

Timeline

Start

2012-07

Primary completion

2014-10

Completion

2014-10

Outcome

Missed primary endpoint

paper Median PFS was 6.77 versus 6.97 months for onartuzumab versus placebo, respectively (HR, 1.08; 95% confidence interval [CI], 0.71-1.63; p = .71). PMID 27401892 ↗

paper In the MET-positive population, median PFS was 5.95 versus 6.80 months, onartuzumab versus placebo (HR, 1.38; 95% CI, 0.60-3.20; p = .45). PMID 27401892 ↗

Publications

• Shah MA, Cho JY, Tan IB, Tebbutt NC, Yen CJ, Kang A, Shames DS, Bu L, Kang YK. A Randomized Phase II Study of FOLFOX With or Without the MET Inhibitor Onartuzumab in Advanced Adenocarcinoma of the Stomach and Gastroesophageal Junction. Oncologist. 2016 Sep;21(9):1085-90. doi: 10.1634/theoncologist.2016-0038. Epub 2016 Jul 8.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Onartuzumab	Monoclonal antibody	10 mg/kg	Intravenous
Background	Leucovorin	Small molecule	400 mg/m2	—
Background	Levoleucovorin	Unknown	200 mg/m2	—
Background	Oxaliplatin	Small molecule	85 mg/m2	Intravenous
Background	fluorouracil	Small molecule	2400 mg/m2	Intravenous

Indications