Phase 1/2 study of pepinemab, an inhibitor of semaphorin 4D, in combination with pembrolizumab as first-line treatment of recurrent or metastatic head and neck cancer (KEYNOTE-B84).
Fisher T, Evans E, Mallow C, Foster A, Boise M, Smith E, Leonard J, Chaney M, Beck J, Hager S, Mekhail T, Seetharamu N, Baumgart M, Saba N, Steuer C, Adkins D, Burtness B, Zauderer M. Phase 1/2 study of pepinemab, an inhibitor of semaphorin 4D, in combination with pembrolizumab as first-line treatment of recurrent or metastatic head and neck cancer (KEYNOTE-B84). Journal Of Clinical Oncology 2022, 40: e18033-e18033. DOI: 10.1200/jco.2022.40.16_suppl.e18033.Peer-Reviewed Original ResearchImmune checkpoint inhibitorsFirst-line treatmentDose-expansion phaseM HNSCCComplete responsePD-L1Tumor microenvironmentClinical benefitSingle-arm open-label studyPrior immune checkpoint inhibitorsNeck squamous cell carcinomaSemaphorin 4DActivation of DCsExploratory biomarker analysisImmunosuppressive myeloid cellsTumor PD-L1Open-label studyPrimary efficacy endpointSquamous cell carcinomaPK/PDBiomarker analysisECOG 0Measurable diseaseTreatment biopsiesCheckpoint inhibitors