60PResponse rates with talimogene laherparepvec (T-VEC) monotherapy in patients (pts) with stage IIIB–IVM1c melanoma previously treated with checkpoint inhibitor (CPI) therapy: Retrospective analysis of two clinical trials

Background: In the phase 3 OPTiM trial, intratumoral T-VEC (an oncolytic immunotherapy) significantly improved the overall response rate (ORR) vs GM-CSF in pts with unresectable Stage IIIB–IVM1c melanoma (26% vs 6%; p < 0.001). Treatment options for pts with unresectable or metastatic melanoma who have previously received CPI therapy are limited. This retrospective analysis evaluated response to T-VEC in pts who had received prior CPI therapy.

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