This clinical trial is focused on studying a type of cancer called Classical Hodgkin Lymphoma, specifically in patients whose disease has returned or did not respond to previous treatments. The study is testing a new treatment called MK-4280A, which is a combination of two substances: pembrolizumab and favezelimab. These substances are given as a solution through an intravenous infusion, which means they are delivered directly into the bloodstream through a vein. The trial will compare the effectiveness of MK-4280A against other chemotherapy treatments chosen by doctors, which may include medications like bendamustine or gemcitabine.
The purpose of the study is to see how well MK-4280A works in treating patients with this type of lymphoma compared to other chemotherapy options. Participants in the study will receive either the new treatment or one of the standard chemotherapy treatments. The study will monitor how the disease responds to the treatment and how long the response lasts. It will also track the overall survival of participants and any side effects they may experience during the study.
This trial is designed to help researchers understand if MK-4280A can provide a better treatment option for patients with Classical Hodgkin Lymphoma that has not responded to other therapies. The study will take place over several months, and participants will be closely monitored by healthcare professionals throughout the process to ensure their safety and to gather important information about the treatment’s effectiveness.



Belgium
Czechia
France
Germany
Poland
Spain
Sweden