Antiandrogen Therapy and SBRT in Treating Patients With Recurrent, Metastatic Prostate Cancer

NCT03902951 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 28

Last updated 2026-02-05

No results posted yet for this study

Summary

This phase II trial studies how well antiandrogen therapy (leuprolide, apalutamide, and abiraterone acetate) and stereotactic body radiation therapy (SBRT) works in treating patients with prostate cancer that has come back and has spread to other parts of the body. Drugs used in chemotherapy, such as leuprolide, apalutamide, and abiraterone acetate, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. SBRT uses special equipment to position a patient and deliver radiation to tumors with high precision. This method can kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Giving antiandrogen therapy and SBRT may work better in treating patients with prostate cancer.

Conditions

  • Metastatic Prostate Adenocarcinoma
  • Prostate Adenocarcinoma With Focal Neuroendocrine Differentiation
  • Recurrent Prostate Carcinoma
  • Stage IVB Prostate Cancer AJCC v8

Interventions

DRUG

Abiraterone Acetate

Given PO

DRUG

Apalutamide

Given PO

DRUG

Leuprolide Acetate

Given SC

OTHER

Quality-of-Life Assessment

Ancillary studies

OTHER

Questionnaire Administration

Ancillary studies

RADIATION

Stereotactic Body Radiation Therapy

Undergo SBRT

Sponsors & Collaborators

  • Janssen Inc.

    collaborator INDUSTRY
  • Jonsson Comprehensive Cancer Center

    lead OTHER

Principal Investigators

  • Amar Kishan · UCLA / Jonsson Comprehensive Cancer Center

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-03-17
Primary Completion
2027-01-01
Completion
2028-01-01
FDA Drug
Yes
FDA Device
Yes

Countries

  • United States

Study Locations

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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 NCT03902951 on ClinicalTrials.gov