484 Preliminary efficacy of the IL-15 superagonist SO-C101 in combination with pembrolizumab in patients with advanced/metastatic solid tumors
Garralda E, Galvao V, Champiat S, LoRusso P, Grell P, Naing A, Janku F, Sachse R, Bechard D, Kiemle-Kallee J, Marabelle A, Garralda E. 484 Preliminary efficacy of the IL-15 superagonist SO-C101 in combination with pembrolizumab in patients with advanced/metastatic solid tumors. Journal For ImmunoTherapy Of Cancer 2021, 9: a514-a514. DOI: 10.1136/jitc-2021-sitc2021.484.Peer-Reviewed Original ResearchStudy drug-related adverse eventsDrug-related adverse eventsCytokine release syndromeDose-limiting toxicityAdverse eventsCommon study drug-related adverse eventsAnti-programmed cell death protein 1 antibodyGrade 3 cytokine release syndromeSolid tumorsCell death protein 1 antibodyAnti-PD-1 therapyLong-term stable diseaseLocal injection site reactionsSkin squamous cell carcinomaPhase 2 dosePrevious systemic therapyTreatment-related deathsInjection site reactionsMetastatic solid tumorsAdditional clinical benefitDose-escalation designProtective memory responsesProtein 1 antibodySquamous cell carcinomaAvailable safety data502 Recommended phase 2 dose, pharmacokinetics, pharmacodynamics, and preliminary efficacy of the IL-15 superagonist SO-C101 as monotherapy in patients with advanced/metastatic solid tumors
Marabelle A, Champiat S, Galvao V, Naing A, Janku F, LoRusso P, Grell P, Sachse R, Bechard D, Kiemle-Kallee J, Garralda E. 502 Recommended phase 2 dose, pharmacokinetics, pharmacodynamics, and preliminary efficacy of the IL-15 superagonist SO-C101 as monotherapy in patients with advanced/metastatic solid tumors. 2021, a534-a534. DOI: 10.1136/jitc-2021-sitc2021.502.Peer-Reviewed Original ResearchPhase 2 doseDose-limiting toxicityAdverse eventsPartial responseStable diseaseTransaminase increaseSolid tumorsDrug-related adverse eventsIL-15 receptor αCutaneous squamous cell carcinomaLocal injection site reactionsPrevious systemic therapyResults Thirty patientsSignificant partial responseTreatment-related deathsCommon adverse eventsFlu-like syndromeRelated adverse eventsInjection site reactionsMetastatic solid tumorsAdditional clinical benefitDose-escalation designSquamous cell carcinomaDose-dependent increaseT cell activation