Phase 3 Study Comparing the Cancer Vaccine OSE2101 to Docetaxel Treatment in HLA-A2 Positive Patients with Metastatic Non-Small Cell Lung Cancer Who Have Developed Resistance to Immune Checkpoint Inhibitors

What this Trial Is About

Researchers are evaluating the therapeutic cancer vaccine OSE2101 in patients with metastatic non-small cell lung cancer NSCLC who have developed secondary resistance to immune checkpoint inhibitors ICI. This phase 3, multicenter, randomized, open-label study focuses on HLA-A2 positive patients with either squamous or non-squamous NSCLC. The study aims to compare the efficacy and safety of OSE2101 with the standard treatment docetaxel, considering factors like cancer histology and performance status. Participants will be randomized in a 21 ratio to receive either OSE2101 monotherapy or docetaxel monotherapy. OSE2101 is administered as a subcutaneous injection of 5 mg peptides every three weeks for six cycles, then every eight weeks during the first year, and every twelve weeks until the end of the second year. Docetaxel is given as a 75 mgm2 intravenous infusion over one hour every three weeks. Additionally, a companion diagnostic device system is used to assess patient eligibility based on HLA-A2 phenotype. During the study, participants will have regular evaluations including clinical assessments and monitoring of survival time from randomization to death, which is the primary outcome measured over an average of three years. The study involves ongoing monitoring of treatment effects and safety. Participants can expect scheduled visits aligned with treatment cycles and assessments throughout the trial duration, which extends up to nearly five years from start to completion.

Trial of Therapeutic Cancer Vaccine OSE2101 in Patients With Non-Small Cell Lung Cancer and Secondary Resistance to Immune Checkpoint Inhibitor