This clinical trial is focused on studying treatments for children and teenagers with refractory or relapsing solid tumors. These are types of cancer that have not responded to previous treatments or have returned after treatment. The study will use a combination of two medications: Propranolol and Vinorelbine. Propranolol is commonly used to treat heart conditions, while Vinorelbine is a chemotherapy drug used to treat cancer. The purpose of the study is to determine the highest dose of Vinorelbine that can be given safely when combined with Propranolol.
Participants in the study will take Vinorelbine three times a week and Propranolol daily. The study will monitor how well participants tolerate the treatment and will assess any side effects. The trial will also evaluate how effective the treatment is in controlling the cancer over a period of six months. The study aims to find the best dose that balances effectiveness with minimal side effects.
This trial is important for finding new ways to treat children and teenagers with difficult-to-treat cancers. By combining these two medications, researchers hope to improve outcomes for patients who have limited treatment options. The study will provide valuable information on the safety and potential benefits of this treatment combination.



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