A Phase 1 First-in-Human Study of FS118, a Tetravalent Bispecific Antibody Targeting LAG-3 and PD-L1 in Patients with Advanced Cancer and PD-L1 Resistance.
Yap T, LoRusso P, Wong D, Hu-Lieskovan S, Papadopoulos K, Holz J, Grabowska U, Gradinaru C, Leung K, Marshall S, Reader C, Russell R, Sainson R, Seal C, Shepherd C, Germaschewski F, Gliddon D, Stern O, Young L, Brewis N, Kayitalire L, Morrow M. A Phase 1 First-in-Human Study of FS118, a Tetravalent Bispecific Antibody Targeting LAG-3 and PD-L1 in Patients with Advanced Cancer and PD-L1 Resistance. Clinical Cancer Research 2022, 29: 888-898. PMID: 36342102, DOI: 10.1158/1078-0432.ccr-22-1449.Peer-Reviewed Original ResearchConceptsDisease control rateLAG-3PD-L1Advanced cancerOverall disease control rateDisease controlPeripheral effector cellsPhase 2 doseSerious adverse eventsPhase 1 studySoluble LAG-3Tetravalent bispecific antibodyPrior regimensStable diseaseDose expansionMetastatic settingAdverse eventsPartial responseEffector cellsClinical benefitControl rateSustained elevationTitration designPharmacodynamic activityHuman studies