This clinical trial is focused on studying a type of cancer called anaplastic large cell lymphoma (ALCL), which is a rare form of non-Hodgkin lymphoma. Specifically, the trial is looking at cases where the cancer has returned or not responded to previous treatments, known as relapsing/refractory ALK+ anaplastic large cell lymphoma. The treatment being tested in this study is a medication called nivolumab, which is also known by its code name BMS936558. Nivolumab is a type of immunotherapy, which means it helps the body’s immune system fight cancer.
The purpose of this study is to evaluate how effective nivolumab is in treating patients with this type of lymphoma. The study is divided into two groups, or cohorts. In the first group, patients with active disease will receive nivolumab to see how well it can reduce or eliminate the cancer. In the second group, patients who are in complete remission after a relapse will receive nivolumab as a way to help keep the cancer from coming back. The study will monitor patients over a period of time to assess their response to the treatment and to track their health and any side effects they may experience.
Participants in the study will receive nivolumab through an intravenous infusion, which means the medication is given directly into a vein. The study will follow patients for several years to gather information on the long-term effects and benefits of the treatment. This research aims to provide valuable insights into the potential of nivolumab as a treatment option for patients with relapsing or refractory ALK+ anaplastic large cell lymphoma.



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