On May 6, 2024 Bristol Myers Squibb (NYSE: BMY) reported that the European Medicines Agency (EMA) has validated its Type II variation application for Opdivo (nivolumab) plus Yervoy (ipilimumab) for the first-line treatment of adult patients with microsatellite instability–high (MSI-H) or mismatch repair deficient (dMMR) metastatic colorectal cancer (mCRC) (Press release, Bristol-Myers Squibb, MAY 6, 2024, View Source [SID1234642671]). The EMA’s validation of the application confirms the submission is complete and begins the EMA’s centralized review process.
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"Colorectal cancer is the third most commonly diagnosed cancer in the world, and more options are needed specifically for patients with MSI-H/dMMR mCRC, who are less likely to benefit from treatment with chemotherapy," said Dana Walker, M.D., M.S.C.E., vice president, global program lead, gastrointestinal and genitourinary cancers, Bristol Myers Squibb. "We look forward to working with the European Medicines Agency to discuss bringing the dual immunotherapy combination of Opdivo and Yervoy to patients with MSI-H/dMMR mCRC across Europe."
The submission is based on results from the CheckMate -8HW study, in which Opdivo plus Yervoy demonstrated a statistically significant and clinically meaningful improvement in the dual primary endpoint of progression-free survival (PFS) compared to investigator’s choice of chemotherapy as assessed by Blinded Independent Clinical Review (BICR) for the first-line treatment of patients with MSI-H/dMMR mCRC. These data from CheckMate -8HW were presented at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Gastrointestinal Cancers Symposium. The study is ongoing to assess the other dual primary endpoint of PFS in patients receiving Opdivo plus Yervoy compared to Opdivo alone, as well as secondary endpoints. The safety profile for the dual immunotherapy combination remained consistent with previously reported data and was manageable with established protocols, with no new safety signals identified.
Bristol Myers Squibb thanks the patients and investigators involved in the CheckMate -8HW clinical trial.
About CheckMate -8HW
CheckMate -8HW (NCT04008030) is a Phase 3 randomized, open-label trial evaluating Opdivo plus Yervoy compared to Opdivo alone or investigator’s choice chemotherapy (mFOLFOX-6 or FOLFIRI with or without bevacizumab or cetuximab) in patients with microsatellite instability–high (MSI-H) or mismatch repair deficient (dMMR) metastatic colorectal cancer (mCRC).
Approximately 830 patients were randomized to receive either Opdivo monotherapy (Opdivo 240 mg Q2W for six doses, followed by Opdivo 480 mg Q4W), Opdivo plus Yervoy (Opdivo 240 mg plus Yervoy 1 mg/kg Q3W for four doses, followed by Opdivo 480 mg Q4W), or investigator’s choice of chemotherapy. The dual primary endpoints of the trial are progression-free survival (PFS) per blinded independent central review (BICR) for Opdivo plus Yervoy compared to investigator’s choice of chemotherapy in the first line setting and PFS per BICR for Opdivo plus Yervoy compared to Opdivo alone across all lines of therapy. The trial also includes several secondary safety and efficacy endpoints, including overall survival (OS).
The study is ongoing to assess the second dual primary endpoint of PFS in patients receiving Opdivo plus Yervoy compared to Opdivo alone across all lines of therapy, as well as secondary endpoints.
About dMMR or MSI-H Colorectal Cancer
Colorectal cancer (CRC) is cancer that develops in the colon or the rectum, which are part of the body’s digestive or gastrointestinal system. CRC is the third most commonly diagnosed cancer in the world. In 2020, it is estimated that there were approximately 1,931,000 new cases of the disease; it is the second leading cause of cancer-related deaths among men and women combined.
Mismatch repair deficiency (dMMR) occurs when the proteins that repair mismatch errors in DNA replication are missing or non-functional, leading to microsatellite instability-high (MSI-H) tumors. Approximately 5-7% of metastatic CRC patients have dMMR or MSI-H tumors; they are less likely to benefit from conventional chemotherapy and typically have a poor prognosis.