This phase II study is seeking to determine how safe and tolerable, and what the best dose level is, of targeted therapy (magrolimab) in addition to further targeted therapy (bevacizumab) plus combination chemotherapy (FOLFIRI) in people with advanced, metastatic bowel cancer who have had previous treatmentA Phase 2, Randomized, Open-Label Study Evaluating the Safety and Efficacy of Magrolimab in Combination With Bevacizumab and FOLFIRI Versus Bevacizumab and FOLFIRI in Previously Treated Advanced Inoperable Metastatic Colorectal Cancer (mCRC)

Exclusion

• Prior anticancer therapy including chemotherapy, hormonal therapy, or investigational agents within 3 weeks or within at least 4 half-lives prior to magrolimab dosing (up to a maximum of 4 weeks), whichever is shorter.
• Known v-raf murine sarcoma viral oncogene homolog B1 (BRAF) V600E or MSI-H mutations or dMMR.
• Persistent Grade 2 or more gastrointestinal bleeding.
• Individuals with prior irinotecan therapy.
• Clinically significant coronary artery disease or myocardial infarction within 6 months prior to inclusion.
• Peripheral neuropathy of more than Grade 2 (CTCAE Version 5.0).
• Known dihydropyrimidine dehydrogenase deficiency.
• Acute intestinal obstruction or subobstruction, history of inflammatory intestinal disease or extended resection of the small intestine. Presence of a colonic prosthesis.
• Unhealed wound, active gastric or duodenal ulcer, or bone fracture.
• History of abdominal fistulas, trachea-oesophageal fistulas, any other Grade 4 gastrointestinal perforations, nongastrointestinal fistulas, or intra-abdominal abscesses 6 months prior to screening.
• Uncontrolled arterial hypertension.
• Thromboembolic event in the 6 months before inclusion (eg, transitory ischemic stroke, stroke, subarachnoid hemorrhage) except peripheral deep vein thrombosis treated with anticoagulants.
• Active central nervous system (CNS) disease. Individuals with asymptomatic and stable, treated CNS lesions (radiation and/or surgery and/or other CNS-directed therapy who have not received corticosteroids for at least 4 weeks) are allowed.
• Red blood cell (RBC) transfusion dependence, defined as requiring more than 2 units of packed RBC transfusions during the 4-week period prior to screening.
• History of hemolytic anemia, autoimmune thrombocytopenia, or Evans syndrome in the last 3 months.
• Known hypersensitivity to any of the study drugs, the metabolites, or formulation excipient.
• Known inherited or acquired bleeding disorders.
• Significant disease or medical conditions, as assessed by the investigator and sponsor, that would substantially increase the risk-benefit ratio of participating in the study.
• Second malignancy, except treated basal cell or localized squamous skin carcinomas, or localized prostate cancer.
• Uncontrolled pleural effusion.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.