Bevacizumab and Temsirolimus Alone or in Combination With Valproic Acid or Cetuximab in Treating Patients With Advanced or Metastatic Malignancy or Other Benign Disease

PRIMARY OBJECTIVES: I. To determine the maximum tolerated doses (MTDs) and dose-limiting toxicities (DLTs) of treatment with bevacizumab and temsirolimus in combination and plus valproic acid or cetuximab. SECONDARY OBJECTIVES: I. Preliminary descriptive assessment of anti-tumor efficacy of each combination. II. Preliminary assessment of the pharmacokinetic, pharmacodynamic markers of target inhibition and correlates of response (optional). OUTLINE: This is a dose-escalation study of bevacizumab and temsirolimus. Patients are assigned to 1 of 3 treatment groups. GROUP I: Patients receive temsirolimus intravenously (IV) over 30-60 minutes on days 1, 8, 15, and 22; bevacizumab IV over 30-90 minutes on days 1 and 15; and cetuximab IV over 1-2 hours on days 1, 8, 15, and 22. GROUP II: Patients receive temsirolimus and bevacizumab as in Group I and valproic acid orally (PO) daily on days 1-7 and 15-21. GROUP III: Patients receive temsirolimus and bevacizumab as in Group I. In all groups, courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.