Biothera Pharmaceuticals has entered into a clinical trial collaboration agreement with Genentech to assess the safety and efficacy of Biothera’s Imprime PGG in combination with Genentech’s atezolizumab, an anti-PD-L1 antibody, and bevacizumab, an anti-VEGF antibody, to treat patients with metastatic colorectal cancer. Genentech will conduct the multicenter, which will enroll approximately 40 patients in the initial phase of the study.   Barry Labinger, president and chief executive offi...