This clinical trial is focused on studying the effects of a new treatment called PM14 on certain types of cancers known as soft tissue sarcomas and other solid tumors. Soft tissue sarcomas are a group of cancers that begin in the tissues that connect, support, or surround other structures and organs of the body. Solid tumors refer to abnormal masses of tissue that usually do not contain cysts or liquid areas. The treatment being tested, PM14, is a medication that is given through an intravenous infusion, which means it is delivered directly into the bloodstream through a vein.
The purpose of this study is to explore different ways of using PM14, both on its own and in combination with radiotherapy, which is a treatment that uses high doses of radiation to kill cancer cells and shrink tumors. The study is divided into different groups, or cohorts, each testing a specific treatment plan. Some groups will receive PM14 alone, while others will receive PM14 along with radiotherapy. The study aims to find the best dose of PM14 that can be safely used and to see how well it works in stopping the cancer from growing or spreading.
Participants in the study will receive PM14 in different schedules, such as a 24-hour infusion or shorter infusions over consecutive days. The study will also look at how the treatment affects the participants’ quality of life and any side effects they may experience. The trial will provide valuable information about the potential benefits and risks of PM14 for treating these types of cancers, helping to determine if it could be a useful option for patients in the future.



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