Vismodegib and Gamma-Secretase/Notch Signalling Pathway Inhibitor RO4929097 in Treating Patients With Advanced or Metastatic Sarcoma

Inclusion Criteria

• Patients must have histologically or cytologically confirmed sarcoma
• All Patients must have measurable disease as defined by RECIST 1.1
• Eastern Cooperative Oncology Group (ECOG) performance status = = 60%)
• There is a minimum of 1 prior therapy; however, there are no minimum systemic therapy requirements for well differentiated or de-differentiated liposarcoma, clear cell sarcoma, chondrosarcoma, alveolar soft part sarcoma and chordomas which have no effective therapies; for Phase Ib, there are no maximum limits to number of prior therapies; for Phase II, there is a maximum of 5 prior chemotherapy regimens including tyrosine kinase inhibitors (TKI); the last dose of systemic therapy (including TKI) must have been given at least 2 weeks prior to initiation of therapy; patients receiving nitrosourea (such as BCNU) or mitomycin C must have received their last dose of such therapy at least 6 weeks prior to initiation of therapy; patients receiving bevacizumab must wait at least 4 weeks; patients receiving experimental immunotherapy or antibody based therapies must wait a minimum of 4 weeks or 4 half-lives, whichever is longer; this should be discussed with the principal investigator before registration; tumor biopsies should be performed only after meeting these requirements; patients should recover to less than Common Terminology Criteria for Adverse Events (CTCAE) grade 2 toxicities related to previous therapies to be eligible
• Patients with metastatic or locally advanced (inoperable) gastrointestinal stromal tumor (GIST) must have progressed on imatinib and sunitinib or be intolerant to both drugs; the last dose of tyrosine kinase inhibitors imatinib or sunitinib should be given at least 2 weeks prior to initiation of therapy
• Patients with brain metastasis that have been treated with definitive surgery or radiation and have been clinically stable for 3 months following the procedure with no neurological signs or symptoms and no requirement for systemic glucocorticoids are eligible for study
• Patients must not have current evidence of another malignancy except non-melanoma skin cancer and superficial bladder cancer
• Leukocytes >= 3,000/mcL
• Absolute neutrophil count >= 1,500/mcL
• Hemoglobin >= 9 g/dl
• Platelets >= 100,000/mcL
• Total bilirubin = = 60 mL/min/1.73 m^2 for patients with creatinine levels above 1.5
• Patients treated at Memorial Sloan-Kettering Cancer Center may consent to optional tumor biopsies before and after initiation of study drug; tumor biopsies should be obtained after fulfilling requirements
• Women of child-bearing potential and men must use two forms of contraception (i.e., barrier contraception and one other method of contraception) at least 4 weeks prior to study entry, for the duration of study participation, and for at least 12 months post-treatment; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately; women of childbearing potential are required to have a negative pregnancy test (with a sensitivity of at least 25 mIU/mL) within 7 days and within 24 hours prior to the first dose of GDC-0449 and/or RO4929097 (serum or urine); a pregnancy test (serum or urine) will be administered every 3 weeks to all women of childbearing potential, at the start of each drug cycle; a positive urine test must be confirmed by a serum pregnancy test; prior to dispensing GDC-0449 and/or RO4929097, the investigator must confirm and document the patient's use of two contraceptive methods, dates of negative pregnancy test, and confirm that patient understands the teratogenic potential of GDC-0449 and/or RO4929097
• Female patients of childbearing potential are defined as follows:
• Patients with regular menses
• Patients, after menarche with amenorrhea, irregular cycles, or using a contraceptive method that precludes withdrawal bleeding
• Women who have had tubal ligation
• Female patients may b