This clinical trial is focused on studying two types of blood cancers: Relapsed or Refractory Classical Hodgkin Lymphoma and Relapsed or Refractory Primary Mediastinal Large B-cell Lymphoma. These are conditions where the cancer has returned or has not responded to previous treatments. The study will use a treatment called MK-3475A, which is a solution for injection containing the active substance Pembrolizumab. Pembrolizumab is a type of protein that helps the immune system fight cancer cells. In this study, it is combined with another substance called hyaluronidase to help it be absorbed when injected under the skin.
The purpose of the study is to understand how the body processes Pembrolizumab when given as a subcutaneous injection and to evaluate its effectiveness and safety in treating these cancers. Participants will receive the treatment in cycles, and researchers will monitor how the drug is absorbed and how well it works in reducing cancer symptoms. The study will also look at the overall response of the cancer to the treatment, as well as any side effects that may occur.
Throughout the study, participants will undergo regular assessments to track their response to the treatment and any changes in their condition. The study aims to provide valuable information on the potential benefits and risks of using Pembrolizumab in this new form of administration for patients with these specific types of lymphoma.



Germany
Poland
Spain