On May 30, 2025, Pfizer announced statistically significant and clinically meaningful survival results from the Phase 3 BREAKWATER trial evaluating BRAFTOVI^® (encorafenib) in combination with cetuximab (marketed as ERBITUX^®) and mFOLFOX6 (fluorouracil, leucovorin, and oxaliplatin) in patients with metastatic colorectal cancer (mCRC) with a BRAF V600E mutation.

In a second interim analysis of overall survival (OS), a key secondary endpoint, the BRAFTOVI combination regimen reduced the risk of death by 51% compared to standard-of-care chemotherapy with or without bevacizumab (Hazard Ratio [HR] 0.49; 95% Confidence Interval [CI], 0.38, 0.63, p<0.0001). Median OS was 30.3 months (95% CI, 21.7, Not Estimated) with BRAFTOVIin combination with cetuximab and mFOLFOX6 compared to 15.1 months with chemotherapy with or without bevacizumab (95% CI, 13.7, 17.7).

In the primary analysis of progression-free survival (PFS), the BRAFTOVI combination regimen reduced the risk of disease progression or death by 47% compared to standard-of-care chemotherapy with or without bevacizumab (HR 0.53; 95% CI, 0.41, 0.68, p<0.0001) as assessed by blinded independent central review (BICR). Median PFS was 12.8 months (95% CI, 11.2, 15.9) with the BRAFTOVI combination regimen compared to 7.1 months (95% CI, 6.8, 8.5).

At the time of this analysis, the safety profile of BRAFTOVI in combination with cetuximab and mFOLFOX6 continued to be consistent with the known safety profile of each respective agent. No new safety signals were identified.

The most common side effects (≥30%) were nausea, anemia, diarrhea, decreased appetite, vomiting, neutrophil count decrease, arthralgia, and rash. Among patients receiving BRAFTOVI in combination with cetuximab and mFOLFOX6, 13.8% experienced an adverse reaction that resulted in permanent discontinuation of BRAFTOVI. These data has been published in the New England Journal of Medicine.