This research study is a Phase II clinical trial. Phase II clinical trials test the safety and effectiveness of an investigational intervention to learn whether the intervention works in treating a specific disease. Investigational means that the intervention is being studied.~PM01183 is a new drug that is believed to bind DNA cause double strands of DNA to break. This drug has been studied in previous research studies, and these suggest that it may slow or stop the growth of cancers. The FDA (the U.S. Food and Drug Administration) has not approved PM01183 as a treatment for any disease.~In this research study, the investigators are trying to assess the effects, good or bad, that PM01183, administered either alone or in combination with gemcitabine or doxorubicin has on metastatic or unresectable sarcoma.
This research study is investigating a drug called PM01183 alone and in combination with chemotherapy drugs called gemcitabine or doxorubicin as a possible treatment for metastatic or unresectable Sarcoma.