FOLFIRI and Bevacizumab With or Without Pelareorep for Second-Line Treatment of Metastatic RAS-Mutated, Microsatellite-Stable Colorectal Cancer

Summary

This is an open-label, randomized, multicenter Phase 2 study to assess the efficacy and safety of FOLFIRI + bevacizumab + pelareorep vs. FOLFIRI + bevacizumab in patients with RAS-mutated, MSS mCRC who have progressed after one prior line of oxaliplatin-based therapy.

Eligibility

Inclusion Criteria:

* Histologically confirmed cancer of the colon or rectum with documented metastasis
* Measurable disease per RECIST v. 1.1
* Not candidates for curative surgery or curative radiation
* Progressed on, or been intolerant to, a first-line, oxaliplatin-based chemotherapy regimen in the metastatic setting or relapsed within 6 months of completing adjuvant oxaliplatin
* Considered medically eligible to receive standard of care (SOC) FOLFIRI with bevacizumab
* Non-microsatellite instability high or non-deficient mismatch repair (non-MSI-H/non dMMR) tumor status per a standard local testing method
* Tumor confirmed to harbor a known RAS mutation per a standard local testing method
* ECOG performance status of 0 or 1
* Patients must have adequate hematological, renal, and hepatic function
* Female patients of childbearing potential must have a negative pregnancy test
* Life expectancy of at least 6 months

Exclusion Criteria:

* Undergone systemic chemotherapy, radiotherapy, or surgery, \<4 weeks before study treatment
* Ongoing AEs of Grade ≥2 that are related to anti-cancer treatment
* Prior treatment with irinotecan
* Symptomatic brain metastases
* Active autoimmune disease
* Receiving immunosuppressive or myelosuppressive medications
* Active, uncontrolled infections
* Known HIV infection or active hepatitis B or C that requires anti-viral treatment
* History of another primary cancer within the last 3 years except for non-melanoma skin cancer, early-stage prostate cancer, or curatively treated cervical carcinoma in-situ
* History of allergy or known hypersensitivity to any of the study drugs, study drug classes,
* Uncontrolled or severe cardiac disease
* Received any vaccine within 28 days prior to first study treatment

Conditions4

Interventions3

Locations13 sites

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