A Study to Compare the Pharmacokinetics, Efficacy, Safety, and Immunogenicity of Pembrolizumab (SB27, EU Sourced Keytruda, and US Sourced Keytruda) in Subjects With Stage II-IIIA NSCLC Following Complete Resection and Adjuvant Platinum-based Chemotherapy

The goal of this clinical trial is to compare the amount of study drug in patients' blood to confirm that SB27 works in the same way as EU and US sourced Keytruda in early or locally advanced non-small cell lung cancer (NSCLC) patients who underwent surgery and adjuvant chemotherapy. The main question it aims to answer is: • What the body does to the study drug, which is called "pharmacokinetic" Participants will receive investigational product (IP) administration every 3 weeks, maximum 18 cycles over about 51 weeks and blood sample will be collected. Researchers will compare 3 medicines (SB27, EU sourced Keytruda, and US sourced Keytruda) to see if SB27 works in the same way as EU and US sourced Keytruda.

NCT Number	NCT06268613
Lead Sponsor	Samsung Bioepis Co., Ltd.
Conditions	Non-small Cell Lung Cancer Stage II, Non-small Cell Lung Cancer Stage IIIA
Enrollment	163 participants
Start Date	2024-01-16
Primary Completion	2026-02-19 (estimated)
Study Completion	2026-11 (estimated)
Updated on ClinicalTrials.gov	2026-05-05