Study Details

A Randomized Study of Enzalutamide in Patients with Localized Prostate Cancer Undergoing Active Surveillance

This trial is complete
The study has ended normally, and participants are no longer being examined or treated (that is, the last participant's last visit has occurred). ID

The unique identification code given to each clinical study upon registration at

Astellas Study ID

The unique identification code given by the study sponsor.


EudraCT ID

The unique identification code given to each clinical study upon registration at EudraCT (European Union Drug Regulating Authorities Clinical Trials Database).



Prostate Cancer


These clinical trials are done to learn if an experimental treatment helps participants who have a specific condition or disease. Phase 2 trials usually include a larger group of participants than Phase 1 trials.

Phase 2


18 years - N/A






A type of clinical study in which participants are assigned to groups that receive one or more intervention/treatment (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


Trial Dates

Jun 2016 - Aug 2020


None (Open Label)

Enrollment number


A Randomized Study of Enzalutamide in Patients with Localized Prostate Cancer Undergoing Active Surveillance (ENACT)

Study summary

Study documents

Study Documents, including study results, are available after a study is completed or terminated, according to Astellas Transparency policy.

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