This clinical trial is focused on studying treatments for children and adolescents with difficult-to-treat cancers. These cancers are known as refractory high-risk malignancies, which means they are resistant to standard treatments and pose a high risk to the patient. The study is exploring the effects of a combination of two medications: Nivolumab and Entinostat. Nivolumab is a medication that helps the immune system recognize and attack cancer cells, while Entinostat is a drug that can modify the way cancer cells grow and divide.
The purpose of this study is to see how well the combination of Nivolumab and Entinostat works in treating these challenging cancers. The study will involve children and adolescents who have cancers with certain characteristics, such as a high number of genetic changes, specific gene amplifications, or a high presence of immune cells within the tumor. Participants will receive the study medications and be monitored for their response to the treatment over a period of time.
The study will be conducted in phases, starting with a focus on determining the safest dose of the combination treatment, followed by an assessment of how well the treatment works in shrinking or controlling the cancer. The trial aims to provide valuable information on the potential benefits of using Nivolumab and Entinostat together for treating these high-risk cancers in young patients.



Austria
France
Germany
Sweden
The Netherlands