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Androgen-responsive POSLUMA-guided Intra-prostatic Boost

NCT07393867 · Status: NOT_YET_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 23

Last updated 2026-02-06

No results posted yet for this study

Summary

This research study is for men with intermediate- or high-risk prostate cancer who are planning to receive hormone therapy and radiation treatment. The purpose of the study is to see whether a special type of diagnostic imaging done during hormone therapy can help doctors more accurately target remaining cancer with radiation, while avoiding areas that may no longer need extra treatment. All participants will receive standard hormone therapy and radiation therapy, along with three imaging scans, over a six-month period. The information gained from this study may help make prostate cancer radiation treatment more precise and reduce side effects for future patients.

Conditions

  • Intermediate Risk Prostate Cancer
  • High Risk Prostate Cancer
  • Prostate Cancer

Interventions

DIAGNOSTIC_TEST

PSMA PET/CT

PSMA PET/CT is an imaging test that uses a radioactive tracer to highlight prostate cancer cells. Imaging will be performed at baseline, approximately eight weeks after starting ADT, and approximately 24 weeks after starting ADT (end of treatment). These scans are used to guide radiation treatment planning and assess treatment response.

DRUG

Androgen Deprivation Therapy (ADT) +/- bicalutamide

ADT is used to lower testosterone levels, which can slow or shrink prostate tumors. All participants will receive approximately six months of ADT starting before radiation therapy, using injectable or oral medications. Depending on the type of ADT, participants may also receive daily bicalutamide. Bicalutamide is categorized as an antiandrogen, which means it will block the effects of testosterone and work together with ADT to slow down or shrink prostate cancer.

RADIATION

Stereotactic Body Radiation Therapy (SBRT) +/- focal microboost

SBRT is a form of radiation therapy that delivers precise, high-dose radiation to the prostate over a short period of time. SBRT will be initiated 10 weeks after initiation of ADT and will be delivered in five sessions over two weeks. Based on PSMA PET/CT and MRI findings after initiation of ADT, some participants may receive an optional focal radiation microboost to areas of residual cancer. The microboost, if delivered, will be given during the same SBRT treatment sessions and will be limited by standard safety constraints.

Sponsors & Collaborators

  • Blue Earth Diagnostics

    collaborator INDUSTRY

  • Dana-Farber/Brigham and Women's Cancer Center

    collaborator OTHER

  • Martin T. King, MD, PhD

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-31
Primary Completion
2026-12-31
Completion
2027-12-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

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 NCT07393867 on ClinicalTrials.gov