Trial of Dasatinib in Advanced Sarcomas

Inclusion criteria

• . Unresectable, recurrent, or metastatic histologically-confirmed soft tissue or bone sarcoma of one of the following subtypes:
• . Documentation that subjects with leiomyosarcoma, liposarcoma, osteosarcoma, Ewing's, MPNST, rhabdomyosarcoma or MFH have received, not been eligible for or refused at least one prior chemotherapy regimen before participation in the dasatinib study. Subjects with GIST must have received or been intolerant to imatinib; prior treatment with other agents including sunitinib is not required.Neoadjuvant/adjuvant chemotherapy qualifies as prior therapy.
• . Subjects must have unidimensionally measurable lesion(s) either by x-ray, computed tomography (CT), magnetic resonance imaging (MRI) or physical examination documented within 30 days prior to registration.
• . Prior radiation will be allowed. More than two weeks should have elapsed since the administration of the last fraction of radiation therapy, and subjects must have recovered from grade 2 or higher associated toxicities. Measurable lesions, which are selected as target lesions, must be outside previously radiated fields or have documented progression no sooner than 6 weeks after completion of radiation.
• . More than 2 weeks must have elapsed since the subject has received any prior systemic chemotherapy (6 weeks for mitomycin C), and the patient should have recovered from toxicities to the baseline prior to the last course of chemotherapy.
• . Adequate hematologic function within 14 days prior to registration.
• . Prothrombin Time (PT) (or INR) and Partial Thromboplastin Time (PTT) ≤ 1.5 times the institutional upper limit of normal (ULN) within 14 days prior to registration.