At a glance
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A Phase I/II, Open-label, Two Part Study of GSK3359609 in Combination With Tremelimumab in Participants With Selected, Advanced Solid Tumors
In Brief
A Phase 2 clinical trial evaluating feladilimab, Tremelimumab, and 3 other interventions for Neoplasms. Completed, enrolled 26 participants across 8 sites in 3 countries.
Detailed Summary
The purpose of this study is to evaluate if the combination of GSK3359609 and tremelimumab is safe and tolerable (Part 1) and provides significant survival benefit to subjects with relapsed/refractory (R/R) Head and Neck Squamous Cell Carcinomas (HNSCC) to warrant further clinical investigation (Part 2). Part 1 (dose escalation) will enroll subjects with advanced, selected solid tumors. Subjects will receive escalating doses of GSK3359609 and tremelimumab in combination in Part 1. Part 2 is randomized expansion and will enroll subjects with R/R HNSCC who have disease progression after receiving at least 1 platinum-based chemotherapy and at least 1 anti-programmed death receptor protein-1 (PD-1)/anti-programmed death-ligand 1 (PD-L1) therapy, whether in combination or separately. In Part 2, subjects will be randomized in a ratio of 2:1 to receive either GSK3359609 in combination with tremelimumab at the recommended Phase 2 dose or investigators choice of a single-agent standard of care (SOC) therapy including paclitaxel, docetaxel or cetuximab. The total duration of subjects in the study will be approximately 4 years.
Study Details
Timeline
Interventions
feladilimab is humanized anti-ICOS agonist immunoglobulin G (IgG) 4 monoclonal antibody (mAb), which will be administered as an intravenous (IV) infusion once every 3 weeks.
Tremelimumab is humanized anti-CTLA-4 IgG2 mAb, which will be administered as an IV infusion once every 3 weeks for 6 doses, thereafter once every 12 weeks .
Docetaxel is a microtubule stabilizer which will be administered as an IV infusion once every 3 weeks at a dose of 75 milligrams per meter square (mg/m\^2).
Paclitaxel is a microtubule stabilizer which will be administered as an IV infusion once weekly at a dose of 80 mg/m\^2.
Cetuximab is a recombinant, human/mouse chimeric anti-estimated glomerular filtration rate (EGFR) mAb. Cetuximab will be administered at a loading dose of 400 mg/m\^2 followed by 250 mg/m\^2 once weekly.