Evaluation of the flipped dose NIVO3+IPI1 in patients with advanced unresectable melanoma.
retrospective_cohort · Level III
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- Record sourced from PubMed, PMID 41354091.
- Also identified by DOI 10.1093/jnci/djaf327.
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Abstract
Nivolumab 1 mg/kg plus ipilimumab 3 mg/kg (NIVO1+IPI3) was approved for advanced melanoma in 2016. The CheckMate 511 trial demonstrated improved tolerability with the flipped dose, NIVO3+IPI1, but this regimen has not been approved in melanoma by regulatory authorities. In this study, patients with advanced unresectable melanoma treated with NIVO3+IPI1 or NIVO1+IPI3 were included. The objective response rate was 48.8% with NIVO3+IPI1 (n = 209) and 36.9% with NIVO1+IPI3 (n = 190) (P = .016). Adjusted hazard ratio (aHR) was 0.67 (95% CI = 0.53 to 0.87, P = .002) for progression-free survival and 0.59 (95% CI = 0.44 to 0.78, P < .001) for overall survival (OS). In most studied subgroups aHR was <1, in favor of NIVO3+IPI1. The incidence of grade 3-5 immune-related adverse events was 30.6% with NIVO3+IPI1 vs. 51.1% with NIVO1+IPI3 (P < .001). This study shows that in a real-world setting, NIVO3+IPI1 demonstrated superior efficacy compared with NIVO1+IPI3, possibly related to a beneficial safety and tolerability profile allowing for more received doses.