Study to Compare Capsule and Liquid Formulations of Enzalutamide After Single Dose Administration Under Fasting Conditions in Prostate Cancer

• Status: Terminated
• Trial end date: 2020-11-30

Summary

Background:

Enzalutamide is given to treat metastatic prostate cancer. But it takes 4 pills to deliver the effective dose. This can be difficult for people already taking multiple drugs. And swallowing may be difficult for some people. Researchers want to test out a new way of giving enzalutamide by mouth. They want to see if giving a person the liquid taken from inside the standard 4 gelatin capsules is handled by the body in the same way as giving them the capsules whole.

Objectives:

To compare how capsule and liquid forms of enzalutamide are handled by people with prostate cancer.

Eligibility:

Men at least 18 years old with prostate cancer

Design:

Participants will be screened with a heart test (electrocardiogram), medical history, and physical exam. A tissue sample or lab reports will be reviewed.

During the study, participants will repeat screening tests and have urine tests.

Participants will be randomly assigned to get the study drug in one of two orders: either the as capsules then the liquid form (Arm A) or as the liquid form then the capsule form (Arm B).

Participants will be counseled about birth control.

The study will have 2 periods with a minimum 42 day break in between.

On Day 1 of Period 1 and Day 1 of Period 2, participants will be admitted to the hospital. They will get one dose of the study drug. They cannot eat or drink anything except water for at least 10 hours before and for 4 hours after the study drug. Their blood will be sampled over 24 hours. Lunch and dinner will be served. Participants will answer questions after taking the liquid form.

Participants will have blood drawn on Day 3, Day 8, and Day 42.

• Phase: Phase 1

Details

• Lead Sponsor: National Cancer Institute (NCI)