Prognostic and predictive value of β-blockers in the EORTC 1325/KEYNOTE-054 phase III trial of pembrolizumab versus placebo in resected high-risk stage III melanoma.
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Kennedy Oliver J, Kicinski Michal, Valpione Sara, Gandini Sara, Suciu Stefan, Blank Christian U, Long Georgina V, Atkinson Victoria G, Dalle Stéphane, Haydon Andrew M, Meshcheryakov Andrey, Khattak Adnan, Carlino Matteo S, Sandhu Shahneen, Larkin James, Puig Susana, Ascierto Paolo A, Rutkowski Piotr, Schadendorf Dirk, Koornstra Rutger, Hernandez-Aya Leonel, Di Giacomo Anna M, van den Eertwegh Alfonsus J M, Grob Jean-Jacques, Gutzmer Ralf, Jamal Rahima, van Akkooi Alexander C J, Robert Caroline, Eggermont Alexander M M, Lorigan Paul, Mandala Mario
Аннотация
METHODS: Patients with resected stage IIIA, IIIB or IIIC melanoma and regional lymphadenectomy received 200 mg of adjuvant pembrolizumab (n = 514) or placebo (n = 505) every three weeks for one year or until recurrence or unacceptable toxicity. At a median follow-up of 3 years, pembrolizumab prolonged recurrence-free survival (RFS) compared to placebo (hazard ratio (HR) 0.56, 95% confidence interval (CI) 0.47-0.68). β-blocker use was defined as oral administration of any β-blocker within 30 days of randomisation. A multivariable Cox proportional hazard model was used to estimate the HR for the association between the use of β-blockers and RFS.
RESULTS: Ninety-nine (10%) of 1019 randomised patients used β-blockers at baseline. β-blockers had no independent prognostic effect on RFS: HR 0.96 (95% CI 0.70-1.31). The HRs of RFS associated with β-blocker use were 0.67 (95% CI 0.38-1.19) in the pembrolizumab arm and 1.15 (95% CI 0.80-1.66) in the placebo arm. The HR of RFS associated with pembrolizumab compared to placebo was 0.34 (95% CI 0.18-0.65) among β-blocker users and 0.59 (95% CI 0.48-0.71) among those not using β-blockers.
CONCLUSIONS: This study suggests no prognostic effect of β-blockers in resected high-risk stage III melanoma. However, β-blockers may predict improved efficacy of adjuvant pembrolizumab treatment. The combination of immunotherapy with β-blockers merits further investigation. This study is registered with ClinicalTrials.gov, NCT02362594, and EudraCT, 2014-004944-37.