This phase I/II trial studies the side effects of defactinib hydrochloride in combination with carboplatin and paclitaxel and how well they work in treating patients with ovarian, fallopian tube, or primary peritoneal cancer that has come back. Enzyme inhibitors, such as defactinib hydrochloride, may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as carboplatin and paclitaxel, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving defactinib hydrochloride with carboplatin and paclitaxel may work better in treating patients with recurrent ovarian, fallopian tube, or primary peritoneal cancer.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT03287271.
PRIMARY OBJECTIVES:
I. To assess the safety and tolerability of defactinib hydrochloride (VS-6063) plus paclitaxel and carboplatin chemotherapy using the National Cancer Institute’s Common Terminology Criteria for Adverse Events (CTCAE) version (v) 4.03. (Phase I)
II. To evaluate the anti-cancer activity of VS-6063 plus paclitaxel and carboplatin in patients with recurrent ovarian, fallopian tube or primary peritoneal cancer primarily through the objective response rate (ORR), using best ORR by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. (Phase II)
SECONDARY OBJECTIVES:
I. To assess the toxicity and adverse event profile of VS-6063 plus paclitaxel and carboplatin chemotherapy. (Phase II)
II. To describe health-related quality-of-life (QoL) outcomes of patients receiving VS-6063 plus paclitaxel and carboplatin chemotherapy. (Phase II)
III. To determine the effect of VS-6063 on progression free survival (PFS). (Phase II)
IV. To estimate the effect of VS-6063 on overall survival (OS). (Phase II)
V. To assess change in FAK Y397 phosphorylation between baseline tumor biopsy and a repeat biopsy after 14 days of therapy. (Phase II)
VI. To assess biomarkers of VS-6063 activity in serum and tumor samples (osteopontin, cancer stem cells [CSC] markers, and infiltrate of immune cells) with the intent of identifying possible prognostic factors for VS-6063 response. (Phase II)
VII. To bank and maintain formalin-fixed, paraffin-embedded tumor tissues and whole blood specimens for future study of biomarkers. (Phase II)
OUTLINE: This is a dose escalation study of defactinib hydrochloride followed by a phase II study.
Patients receive defactinib hydrochloride orally (PO) twice daily (BID) on days 1-28, paclitaxel intravenously (IV) over 1 hour on days 1, 8, and 15, and carboplatin IV over 1 hour on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 3 months for 2 years and then every 6 months for 3 years.
Lead OrganizationUC San Diego Medical Center - Hillcrest
Principal InvestigatorMichael T. McHale