NCT06397703 · NYU Langone Health
ADT and SBRT vs SBRT Alone for Unfavorable Intermediate Risk Prostate Cancer
What this study is about
For this study, unfavorable intermediate risk prostate cancer patients will select whether they are to be treated with the the usual treatment (SOC) 6 months of Androgen Deprivation Therapy (ADT) in conjunction with stereotactic body radiation therapy/radiosurgery (SBRT) directed to the prostate versus SBRT alone.
View original scientific description
For this study, unfavorable intermediate risk prostate cancer patients will select whether they are to be treated with the standard of care (SOC) 6 months of Androgen Deprivation Therapy (ADT) in conjunction with stereotactic body radiation therapy/radiosurgery (SBRT) directed to the prostate versus SBRT alone. The patient population will include those with National Comprehensive Cancer Network (NCCN)-defined unfavorable intermediate risk disease. All patients will be followed every 6 months for up to 5 years from the first patient treated and will undergo a routine 24-30 months post-SBRT prostate biopsy to assess for local tumor control.
Interventions
DRUG
Leuprolide, Degarelix or Relugolix
Patients assigned to the androgen deprivation therapy (ADT) arm will be treated with monthly Degarelix, or Leuprolide injections or daily Relugolix pills which are all standard ADT interventions.
RADIATION
Stereotactic body radiation therapy/radiosurgery (SBRT)
SBRT will be directed to the prostate and delivered with a prescription dose of 40 Gy in 5 fractions prescribed to the 95% isodose line encompassing the planning target volume. Intra-fraction motion targeting and target position corrections will be utilized for each of the 5 treatment fractions.
Primary outcome measures
Disease-Free Survival
Time frame: Up to Year 5
Defined as the percentage of participants who survive without any signs or symptoms of prostate cancer.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Biopsy proven unfavorable intermediate risk prostate cancer, which includes patients with any one of the following variables: Gleason 4+3 disease; Percent positive cores \> 50% of Gleason 7 disease; 2-3 intermediate risk factors (Gleason 7; PSA 10-20 ng/mL; or T2b-T2c)
- Patients must have tissue available for Decipher score testing. Results must be available before start of treatment.
- Serum testosterone ≥ 150 ng/dL determined within 2 months prior to enrollment
- At least 4 weeks must have elapsed from major surgery
- Karnofsky Performance Scale (KPS) ≥ 80%
- Prostate size as determined on MRI to be \< 90 cc. Prostate size can be determined on CT scan if MRI is not available
- Patient must be available for follow-up. After 2 years of follow-up, upon completion of post-treatment biopsy, telephone and chart review-based follow-up will be acceptable
- Adequate hepatic function with serum bilirubin less than or equal to 1.5 times the upper institutional limits of normal (ULN), Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) less than or equal to 2.5 x ULN. Patients with a history of Gilbert's syndrome may be enrolled if the total bilirubin is \< 3 mg/dL with a predominance of indirect bilirubin
- Adequate renal function with serum creatinine less than or equal to 1.5 x ULN
- Adequate hematologic function with absolute neutrophil counts of at least 1,500 cell/mm3 and platelets of at least 100,000 cells/mm3 and hemoglobin value \> 9 g/dL (Note: patients whose anemia has been corrected to a hemoglobin value \> 9 g/dL with blood transfusions are allowed).
Exclusion criteria
- CT or MRI or Positron Emission Tomography (PET) scan evidence of metastatic disease to the bone
- Patients with one or more positive lymph nodes considered suspicious as determined by clinical assessment on MRI or CT or PET scan
- Prior treatment for prostate cancer, including history of chemotherapy, hormonal therapy within 30 days of enrollment or surgery for prostate cancer (except for prior (transurethral resection of prostate) TURP or greenlight (photoselective vaporization of prostate) PVP which would be allowed)
- History of another malignancy within the previous 2 years except for the following: adequately treated basal cell or squamous cell skin cancer, superficial bladder cancer, currently in complete remission, or any other cancer that has been in complete remission for at least 3 years
- Patients with Crohn's disease or ulcerative colitis
Where
- New York, New York
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jan 28, 2026 · Source of record for eligibility and locations