- Patients must have a histologically confirmed solid tumor malignancy at either original diagnosis or relapse for which no curative therapy exists, and which has either recurred or progressed after at least one prior systemic therapy. Patients with primary brain tumors, or those with brain metastases at time of potential enrollment, are excluded. Additionally, patients with GIST, alveolar soft part sarcoma, or dematofibrosarcoma protuberans are excluded.