Abstract
The approval of BRAF and MEK inhibitors has significantly improved treatment outcomes for patients with BRAF-mutated metastatic melanoma. The 3 first-line targeted therapy trials have provided similar results, and thus the identification of predictive biomarkers may generate a more precise basis for clinical decision-making. Elevated baseline lactate dehydrogenase (LDH) has already been determined as a strong prognostic factor. Therefore, this indirect analysis compared subgroups with elevated baseline LDH across the pivotal targeted therapy trials co-BRIM, COMBI-v and COLUMBUS part 1. The Bucher method was used to compare progression-free survival, objective response rate and overall survival indirectly. The results show a non-significant risk reduction for progression in the subgroup with elevated baseline LDH receiving vemurafenib plus cobimetinib compared with dabrafenib plus trametinib and encorafenib plus binimetinib. Although an indirect comparison, these data might provide some guidance for treatment recommendations in melanoma patients with elevated LDH.
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