A Study of Hedgehog Pathway Inhibitor GDC-0449 in Patients With Locally Advanced or Metastatic Solid Tumors That Are Refractory to Standard Therapy or for Whom No Standard Therapy Exists

Inclusion Criteria

* Histologically documented, incurable, locally advanced or metastatic solid malignancy that has progressed after first-line and second-line therapy (if there is a second-line therapy that has been shown to provide clinical benefit); patients with basal cell carcinoma will be excluded from this study unless they do not qualify for another open GDC-0449 clinical trial
* For patients with disease that is evaluable by physical examination only, diagnosis must also include biomarker confirmation
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
* Documented negative pregnancy test for women of childbearing potential and agreement to use an effective form of contraception for the duration of the study
* Adequate hematopoietic capacity
* Adequate hepatic function
* Adequate renal function
* At least 3 weeks since last chemotherapy, investigational agent, radiation therapy, or major surgical procedure and recovery to pre-treatment baseline or stabilization of all treatment-related toxicities

Exclusion Criteria

* Known, untreated central nervous system (CNS) malignancies or treated brain metastases that are not radiographically stable for ≥ 3 months
* Active infection requiring intravenous (IV) antibiotics
* Clinically significant history of liver disease, including cirrhosis, current alcohol abuse, or current known active infection with hepatitis
* Any medical condition or diagnosis that would likely impair absorption of an orally administered drug (e.g., gastrectomy, ileal bypass, chronic diarrhea, gastroparesis)
* Any other diseases, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or renders the patient at high risk from treatment complications
* Pregnant or lactating
* Treatment with excluded medications, including strong CYP450 inhibitors and inducers