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Ref Type | Journal Article | ||||||||||||
PMID | (28734759) | ||||||||||||
Authors | Overman MJ, McDermott R, Leach JL, Lonardi S, Lenz HJ, Morse MA, Desai J, Hill A, Axelson M, Moss RA, Goldberg MV, Cao ZA, Ledeine JM, Maglinte GA, Kopetz S, André T | ||||||||||||
Title | Nivolumab in patients with metastatic DNA mismatch repair-deficient or microsatellite instability-high colorectal cancer (CheckMate 142): an open-label, multicentre, phase 2 study. | ||||||||||||
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Abstract Text | Metastatic DNA mismatch repair-deficient (dMMR)/microsatellite instability-high (MSI-H) colorectal cancer has a poor prognosis after treatment with conventional chemotherapy and exhibits high levels of tumour neoantigens, tumour-infiltrating lymphocytes, and checkpoint regulators. All of these features are associated with the response to PD-1 blockade in other tumour types. Therefore, we aimed to study nivolumab, a PD-1 immune checkpoint inhibitor, in patients with dMMR/MSI-H metastatic colorectal cancer.In this ongoing, multicentre, open-label, phase 2 trial, we enrolled adults (aged ≥18 years) with histologically confirmed recurrent or metastatic colorectal cancer locally assessed as dMMR/MSI-H from 31 sites (academic centres and hospitals) in eight countries (Australia, Belgium, Canada, France, Ireland, Italy, Spain, and the USA). Eligible patients had progressed on or after, or been intolerant of, at least one previous line of treatment, including a fluoropyrimidine and oxaliplatin or irinotecan. Patients were given 3 mg/kg nivolumab every 2 weeks until disease progression, death, unacceptable toxic effects, or withdrawal from study. The primary endpoint was investigator-assessed objective response as per Response Evaluation Criteria in Solid Tumors (version 1.1). All patients who received at least one dose of study drug were included in all analyses. This trial is registered with ClinicalTrials.gov, number NCT02060188.Of the 74 patients who were enrolled between March 12, 2014, and March 16, 2016, 40 (54%) had received three or more previous treatments. At a median follow-up of 12·0 months (IQR 8·6-18·0), 23 (31·1%, 95% CI 20·8-42·9) of 74 patients achieved an investigator-assessed objective response and 51 (69%, 57-79) patients had disease control for 12 weeks or longer. Median duration of response was not yet reached; all responders were alive, and eight had responses lasting 12 months or longer (Kaplan-Meier 12-month estimate 86%, 95% CI 62-95). The most common grade 3 or 4 drug-related adverse events were increased concentrations of lipase (six [8%]) and amylase (two [3%]). 23 (31%) patients died during the study; none of these deaths were deemed to be treatment related by the investigator.Nivolumab provided durable responses and disease control in pre-treated patients with dMMR/MSI-H metastatic colorectal cancer, and could be a new treatment option for these patients.Bristol-Myers Squibb. |
Molecular Profile | Treatment Approach |
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MLH1 negative | PD-L1/PD-1 antibody |
MSH6 negative | PD-L1/PD-1 antibody |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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MSH6 negative | colorectal cancer | sensitive | Nivolumab | FDA approved | Actionable | In a Phase II trial (CheckMate 142) that supported FDA approval, treatment with Opdivo (nivolumab) resulted in an objective response rate of 36% (19/53, 1 complete response, 18 partial responses) and disease control for 12 weeks or more in 70% (37/53) of patients with microsatellite instability-high (MSI-H) or DNA mismatch repair-deficient (dMMR, defined by the loss of MLH1, PMS2, MSH2, or MSH6 expression by IHC) metastatic colorectal cancer (PMID: 28734759; NCT02060188). | 28734759 detail... detail... |
MLH1 negative | colorectal cancer | sensitive | Nivolumab | FDA approved | Actionable | In a Phase II trial (CheckMate 142) that supported FDA approval, treatment with Opdivo (nivolumab) resulted in an objective response rate of 36% (19/53, 1 complete response, 18 partial responses) and disease control for 12 weeks or more in 70% (37/53) of patients with microsatellite instability-high (MSI-H) or DNA mismatch repair-deficient (dMMR, defined by the loss of MLH1, PMS2, MSH2, or MSH6 expression by IHC) metastatic colorectal cancer (PMID: 28734759; NCT02060188). | detail... 28734759 detail... |