Amgen has completed its acquisition of Five Prime Therapeutics for approximately $1.9 billion in cash. This acquisition adds Five Prime’s innovative pipeline of immuno-oncology and targeted cancer therapies to Amgen’s oncology portfolio.   “Five Prime fits squarely within Amgen’s leading oncology portfolio and includes bemarituzumab, a Phase 3 trial-ready, first-in-class program for gastric cancer, the third leading cause of cancer mortality worldwide,” said Rober...