TEIPP Immunotherapy in Patients With NSCLC

Patients will receive three rounds of vaccination three weeks apart via one subcutaneous (SC) injection in an alternating limb. Patients in the extension cohort will receive the highest safest dose in combination with pembrolizumab (a CPI).These patients will receive three rounds of combination treatment with TEIPP24 vaccination and pembrolizumab every three weeks. Pembrolizumab will be administered as per standard of care.