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Relugolix + Enzalutamide Study in High-Risk Prostate Cancer

NCT06130995 · Status: RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 46

Last updated 2026-03-05

No results posted yet for this study

Summary

The goal of this clinical trial is to test how effective and safe it is to use a combination of two medications, relugolix and enzalutamide, in patients with advanced prostate cancer. We want to see if this combination can help improve the chances of curing the cancer and make the patients live longer without the cancer getting worse.

The main questions we want to answer in this study are:

* Can using relugolix and enzalutamide together help increase the chances of curing high-risk advanced prostate cancer?
* Does this combination treatment help patients live longer without their cancer getting worse?

Participants in this study will be asked to take relugolix and enzalutamide as part of their cancer treatment. They will also undergo Radiation Therapy or prostatectomy, which are standard treatments for this type of cancer.

Conditions

  • Androgen Deprivation Therapy
  • Locally Advanced Prostate Cancer

Interventions

DRUG

Relugolix and Enzalutamide

Dose level of Relugolix and Enzalutamide Safety Lead-in Cohort, 3-12 patient. Relugolix;120 mg, oral, once daily, with a loading dose of 360 mg on day 1, Enzalutamide; 120-160 mg, oral, once daily. Dose Expansion Cohort, up to 34 patients. Relugolix;120 mg, oral, once daily, with a loading dose of 360 mg on day 1, Enzalutamide; To be determined by safety lead-in cohort. One cycle = 3 months The dose limiting toxicity (DLT) period is the first 28 days Neoadjuvant ADT: 6 months; Relugolix: 120 mg orally, daily (with a 360 mg loading dose on day 1, Enzalutamide: 160 mg (or 120 mg) orally, daily Concurrent ADT during Radiation Therapy; Relugolix: 120 mg orally, daily (with a 360 mg loading dose on day 1, Enzalutamide: 160 mg (or 120 mg) orally, daily Maintenance ADT: Additional 18 months; Relugolix: 120 mg orally, daily (with a 360 mg loading dose on day 1, Enzalutamide: 160 mg (or 120 mg) orally, daily

Sponsors & Collaborators

  • Pfizer

    collaborator INDUSTRY

  • Astellas Pharma Inc

    collaborator INDUSTRY

  • University of Oklahoma

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-12-26
Primary Completion
2029-01-31
Completion
2030-01-31

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06130995 on ClinicalTrials.gov