Enzalutamide, Radiation Therapy and Hormone Therapy in Treating Patients With Intermediate or High-Risk Prostate Cancer

Adenocarcinoma of the Prostate Clinical Trial

Official title: Phase Ib Trial of Enzalutamide in Combination With Radiation Therapy and LHRH Agonist Therapy in the Management of Intermediate and High-Risk Prostate Cancer

Status Active, not recruiting

Clinical Trial Summary

This phase I trial studies the side effects and best way to give enzalutamide, radiation therapy, and hormone therapy in treating patients with intermediate or high-risk prostate cancer. Androgens can cause the growth of prostate cancer cells. Antihormone therapy, such as enzalutamide, may lessen the amount of androgens made by the body. Radiation therapy uses high energy x rays to kill tumor cells. Giving enzalutamide, radiation therapy, and hormone therapy may be an effective treatment for prostate cancer.

Clinical Trial Description

PRIMARY OBJECTIVE:

1) To assess the safety of the combination of neoadjuvant and concurrent enzalutamide with an luteinizing-hormone-releasing hormone (LHRH) agonist and radiation therapy.

SECONDARY OBJECTIVES:

1. To determine the efficacy of the combination of enzalutamide with an LHRH agonist and radiation therapy using prostate specific antigen (PSA) kinetics.

2. To determine the efficacy of the combination of enzalutamide with an LHRH agonist and radiation therapy using PSA nadir.

3. To describe patient-reported outcomes including: Expanded Prostate Cancer Index Composite (EPIC), American Urological Association (AUA) Symptom Index, PROstate magnetic resonance (MR) Imaging Study (PROMIS) Fatigue Scale.

OUTLINE:

Patients receive enzalutamide orally (PO) once daily (QD) for 6 months. Beginning 2 weeks after start of enzalutamide, patients receive LHRH agonist therapy with goserelin acetate subcutaneously (SC) or leuprolide acetate intramuscularly (IM) or SC for 6 months (intermediate risk patients) or 24 months (high risk patients) post-radiation therapy. Beginning 8 weeks after the start of LHRH agonist therapy, patients undergo either intensity modulated radiation therapy (IMRT) or volumetric arc therapy (VMAT) daily five days a week for 8 weeks.

After completion of study treatment, patients are followed up every 3 months for 2 years, every 6 months for 2 years, and then annually thereafter. ;

Related Conditions & MeSH terms

• Adenocarcinoma of the Prostate
• Prostatic Neoplasms
• Recurrent Prostate Cancer
• Stage IIB Prostate Cancer
• Stage III Prostate Cancer
• Stage IV Prostate Cancer

• NCT number: NCT02023463
• Study type: Interventional
• Source: Thomas Jefferson University
• Status: Active, not recruiting
• Phase: Phase 1
• Start date: April 2, 2014
• Completion date: January 1, 2040