4.5 Article

Combined ipilimumab and nivolumab first-line and after BRAF-targeted therapy in advanced melanoma

Journal

PIGMENT CELL & MELANOMA RESEARCH
Volume 33, Issue 2, Pages 358-365

Publisher

WILEY
DOI: 10.1111/pcmr.12831

Keywords

BRAF; immunotherapy; ipilimumab; nivolumab; melanoma; targeted therapy

Funding

  1. Cancer Institute NSW Fellowship
  2. University of Sydney Medical Foundation
  3. Australian NHMRC Fellowship

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The combination of ipilimumab and nivolumab is a highly active systemic therapy for metastatic melanoma but can cause significant toxicity. We explore the safety and efficacy of this treatment in routine clinical practice, particularly in the setting of serine/threonine-protein kinase B-Raf (BRAF)-targeted therapy. Consecutive patients with unresectable stage IIIC/IV melanoma commenced on ipilimumab and nivolumab across 10 tertiary melanoma institutions in Australia were identified retrospectively. Data collected included demographics, response and survival outcomes. A total of 152 patients were included for analysis, 39% were treatment-naive and 22% failed first-line BRAF/MEK inhibitors. Treatment-related adverse events occurred in 67% of patients, grade 3-5 in 38%. The overall objective response rate was 41%, 57% in treatment-naive and 21% in BRAF/MEK failure patients. Median progression-free survival was 4.0 months (95% CI, 3.0-6.0) in the whole cohort, 11.0 months (95% CI, 6.0-NR) in treatment-naive and 2.0 months (95% CI, 1.4-4.6) in BRAF/MEK failure patients. The combination of ipilimumab and nivolumab can be used safely and effectively in a real-world population. While first-line efficacy appears comparable to trial populations, BRAF-mutant patients failing prior BRAF/MEK inhibitors show less response.

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