This phase I/II trial studies the side effects and best dose of vorinostat when given together with gemcitabine hydrochloride and docetaxel and to see how well they work in treating patients with soft tissue sarcoma that has spread to other places in the body (metastatic) or cannot be removed by surgery. Vorinostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as gemcitabine hydrochloride and docetaxel, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving vorinostat with combination chemotherapy may kill more tumor cells than giving either one alone.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT01879085.
PRIMARY OBJECTIVES:
I. To determine the dose of vorinostat that can be safely combined with gemcitabine (gemcitabine hydrochloride) and docetaxel in patients with advanced sarcomas. (Phase Ib)
II. To determine the safety and efficacy of gemcitabine and docetaxel in combination with vorinostat in patients with advanced sarcomas. (Phase II)
SECONDARY OBJECTIVES:
I. To characterize the pharmacokinetics (PK) and pharmacodynamics (PD) of vorinostat when combined with gemcitabine and docetaxel in patients with advanced sarcomas. (Phase Ib)
II. To determine the objective response rate, progression-free and overall survival of patients with advanced sarcomas treated with gemcitabine and docetaxel + vorinostat. (Phase II)
II. To develop a predictive molecular signature of response to chemotreatment in advanced sarcomas. (Phase II)
OUTLINE: This is a phase I, dose-escalation of vorinostat followed by a phase II study.
Patients receive vorinostat orally (PO) once daily (QD) or twice daily (BID) on days -1 to 2 and 7-9, gemcitabine hydrochloride intravenously (IV) over 90 minutes on days 1 and 8, and docetaxel IV over 60 minutes on day 8. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up for 6 months.
Lead OrganizationUniversity of Pittsburgh Cancer Institute (UPCI)
Principal InvestigatorMelissa Amber (Moidel) Burgess