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Alisertib, Abiraterone Acetate and Prednisone in Treating Patients With Hormone-Resistant Prostate Cancer

Adenocarcinoma of the Prostate Clinical Trial

Official title:
A Phase I/II Study of Alisertib in Combination With Abiraterone and Prednisone for Patients With Castration-Resistant Prostate Cancer After Progression on Abiraterone

Clinical Trial Summary

This phase I/II trial studies the side effects and best dose of alisertib when given together with abiraterone acetate and prednisone and to see how well it works in treating patients with hormone-resistant prostate cancer. Alisertib and abiraterone acetate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Androgens can cause the growth of prostate cancer cells. Drugs, such as abiraterone acetate, may also lessen the amount of androgens made by the body. Drugs used in chemotherapy, such as prednisone, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving alisertib, abiraterone acetate, and prednisone together may be an effective treatment for prostate cancer.

Clinical Trial Description

PRIMARY OBJECTIVES:

1. Phase I: To determine the safe dose of alisertib when given in combination with abiraterone (abiraterone acetate) and prednisone in metastatic castration resistant prostate cancer (mCRPC) patients with disease progression on abiraterone and prednisone.

2. Phase II: To determine the proportion of patients who have no disease progression after alisertib is added to abiraterone and prednisone.

SECONDARY OBJECTIVES:

1. Phase II: To determine the prostate specific antigen (PSA) kinetics after alisertib is added to abiraterone and prednisone regimen (this includes the proportion of patients with PSA progression free at 3 months, proportion of patients with 50% PSA reduction after study treatment, maximum PSA decline from baseline during the first 12 weeks).

2. Phase II: To compare baseline circulating tumor cells (CTCs) enumeration to 12 week post-therapy CTC enumeration.

3. Phase II: To compare baseline neuroendocrine marker (chromogranin A and neuron-specific enolase [NSE]) levels to 12 week post therapy neuroendocrine marker levels.

4. Phase II: To further assess overall safety of combination of alisertib with abiraterone and prednisone in the phase 1 portion of the study.

OUTLINE: This is a phase I, dose escalation study of alisertib followed by a phase II study.

Patients receive alisertib orally (PO) twice daily (BID) on days 1-7, abiraterone acetate PO daily, and prednisone PO BID. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01848067
Study type Interventional
Source Thomas Jefferson University
Contact
Status Completed
Phase Phase 1/Phase 2
Start date August 14, 2013
Completion date June 23, 2016
View Details
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