This phase III trial compares the effect of adding chemotherapy (doxorubicin or epirubicin hydrochloride [epirubicin] with ifosfamide or dacarbazine) before standard surgery versus surgery alone in improving long-term survival in patients with retroperitoneal sarcomas that are able to be removed by surgery (resectable). Chemotherapy drugs, such as doxorubicin, epirubicin, ifosfamide, and dacarbazine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving chemotherapy before surgery may make the tumor smaller and easier to remove and may increase patient survival, compared to surgery alone.
This is a multicenter, Phase 1b/2 trial. The phase 1b part of the trial aims to determine the
RP2D of elacestrant when administered in combination with alpelisib, everolimus, palbociclib,
and ribociclib. The Phase 2 part of the trial will evaluate the efficacy and safety of the
various combinations in patients with ER+/HER2- advanced/metastatic breast cancer.
The purpose of this study is to evaluate the safety and tolerability of AB521 when taken
alone in participants with advanced solid tumor malignancies and clear cell renal cell
carcinoma (ccRCC).
