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A Study of Stereotactic Body Radiation Therapy (SBRT) Without Androgen Deprivation Therapy (ADT) in People With Unfavorable Intermediate-Risk Prostate Cancer

NCT05169970 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 215

Last updated 2026-05-13

No results posted yet for this study

Summary

The researchers are doing this study to find out if stereotactic body radiation therapy (SBRT) without androgen deprivation therapy (ADT) is an effective treatment approach for people with unfavorable intermediate-risk prostate. The researchers will see whether SBRT can prevent participants' cancer from coming back and/or spreading to other parts of the body. In addition, they will look closely at how safe and effective it is to rely on Decipher test results for determining which patients would benefit from more extensive radiation treatments

Conditions

Interventions

RADIATION

Stereotactic Body Radiation Therapy (SBRT)

Patients with a low or intermediate risk Decipher score will receive radiation targeting the seminal prostate and seminal vesicles to a dose of 40 Gy in 5 fractions delivered every other day.

RADIATION

Stereotactic Body Radiation Therapy (SBRT)

Patients with high risk Decipher scores will receive radiation targeting the prostate and seminal vesicles to a dose of 40 Gy in 5 fractions with a simultaneous integrated boost to 45 Gy of any dominant intraprostatic lesion as well as radiation to the pelvic lymph nodes to a dose of 25 Gy in 5 fractions delivered every other day.

Sponsors & Collaborators

Principal Investigators

  • Daniel Gorovets, MD · Memorial Sloan Kettering Cancer Center

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-12-09
Primary Completion
2026-12-31
Completion
2026-12-31

Countries

  • United States

Study Locations

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Entities

Diseases
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 NCT05169970 on ClinicalTrials.gov