This study is looking at adding a new medicine called immunotherapy to regular chemotherapy for treating a type of lung cancer called non-small cell lung cancer that has been removed by surgery. Immunotherapy uses special proteins called monoclonal antibodies to help the immune system fight cancer. Chemotherapy uses medicines to stop cancer cells from growing. The study aims to see if adding immunotherapy can help people live longer without their disease coming back.

• The study lasts several years with follow-up visits every few months.
• Participants receive different treatments based on random selection.
• Regular check-ups, including scans and blood tests, are required.

If you decide to participate, you might get a mix of medicines, including one called pembrolizumab, which is given through a vein. You will also need to be okay with regular health checks. Before joining, doctors will make sure you meet certain health conditions, like having recovered from surgery and not having other serious illnesses. This study is for people aged 18 and older and is safe for those with managed HIV. Pregnant women cannot join because the treatment might affect the baby.