Working… Menu

Trial of ADT and SBRT Versus SBRT for Intermediate Prostate Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03056638
Recruitment Status : Active, not recruiting
First Posted : February 17, 2017
Last Update Posted : January 29, 2021
Ferring Pharmaceuticals
University of Texas Southwestern Medical Center
University of Michigan
Information provided by (Responsible Party):
Memorial Sloan Kettering Cancer Center

Brief Summary:

Stereotactic body radiation therapy (SBRT) is a very precise form of radiation therapy that allows the physician to deliver more radiation dose in a single session. Because of this, the number of radiation sessions can be reduced from the typical 45-48 sessions, as in conventional daily session radiation, to 5 sessions given every other day over a week and a half. Giving the radiation at a higher dose during each treatment may be more effective in killing the prostate cancer cells than the standard way of using external radiation therapy where a small amount of radiation is given over many sessions.

Androgen Deprivation Therapy (ADT) or hormonal therapy is one of the methods to treat intermediate risk prostate cancer. This therapy works by reducing the level of testosterone and stopping them from affecting your cancer. The ADT used in this study is known as Degarelix. Degarelix is an approved medication that reduces the body's production of testosterone; this medication is usually given to all men with intermediate risk prostate cancer getting external radiation.

This study is a randomized study to find out whether combining stereotactic (also known as precision) radiation to the prostate cancer combined with a short course of Degarelix will result in a greater likelihood of killing the cancer in the prostate compared to stereotactic radiation therapy given alone. It has been shown that the combination of radiation with medications that interfere with testosterone production and its effects makes prostate cancer cells more sensitive to the radiation.

Condition or disease Intervention/treatment Phase
Prostate Cancer Drug: Degarelix Radiation: stereotactic body radiosurgery (SBRT) Phase 3

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 56 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: Eligible patients with intermediate risk disease will be randomized to ADT with SBRT versus SBRT alone. PSA and testosterone testing every 6 months, Biopsy 24-30 months after SBRT
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase III Randomized Trial Comparing Short Course Androgen Deprivation Therapy and Ultra-Hypofractionated SBRT Versus SBRT Alone For Intermediate Prostate Cancer
Actual Study Start Date : March 28, 2017
Estimated Primary Completion Date : February 2022
Estimated Study Completion Date : February 2022

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Prostate Cancer
Drug Information available for: Degarelix

Arm Intervention/treatment
Experimental: Degarelix in conjunction with stereotactic body radiosurgery
Degarelix monthly for 6 months SBRT 8 Gy x 5
Drug: Degarelix
Degarelix monthly for 6 months

Radiation: stereotactic body radiosurgery (SBRT)
SBRT 8 Gy x 5

Experimental: stereotactic body radiosurgery (SBRT)
SBRT 8 Gy x 5
Radiation: stereotactic body radiosurgery (SBRT)
SBRT 8 Gy x 5

Primary Outcome Measures :
  1. number of patients with a positive biopsy [ Time Frame: 2 years ]
    compare 2-year biopsy positivity rate of intermediate risk prostate cancer patients treated with SBRT + short course ADT versus SBRT alone.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Male
Gender Based Eligibility:   Yes
Gender Eligibility Description:   prostate cancer
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Biopsy proven intermediate risk prostate cancer, which includes patients with any one of the following variables:
  • Gleason 7 disease
  • PSA 10-20 ng/ml
  • Clinical T2b-T2c disease Note: Patients who only have radiographic evidence of T3 disease (i.e. extracapsular extension, or seminal vesical invasion radiographically) will not be excluded.
  • Serum testosterone ≥ 240 ng/dL determined within 2 months prior to enrollment
  • At least 4 weeks must have elapsed from major surgery
  • 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.
  • 18 years of age or older
  • IPSS ≤ 20
  • Patient must be available for follow-up. After 2 years of follow-up following post-treatment biopsy, telephone-based follow-up will be acceptable
  • Laboratory test findings within 8 weeks of randomization:

    • Adequate hepatic function with serum bilirubin ≤ 1.5 times the upper institutional limits of normal (ULN), ALT and AST ≤ 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 ≤ 1.5 x ULN
    • Adequate hematologic function with absolute neutrophil counts ≥ 1,500 cell/mm3 and platelets ≥ 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 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
  • Prior treatment for prostate cancer, including history of chemotherapy, hormonal therapy within 30 days of enrollment or surgery for prostate cancer (except for prior TURP or greenlight PVP which would be allowed)
  • History of another malignancy within the previous 3 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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03056638

Layout table for location information
United States, Florida
Baptist Alliance MCI
Miami, Florida, United States, 33143
United States, New Jersey
Memorial Sloan Kettering Basking Ridge
Basking Ridge, New Jersey, United States, 07920
Memorial Sloan Kettering Monmouth
Middletown, New Jersey, United States, 07748
Memorial Sloan Kettering Bergen
Montvale, New Jersey, United States, 07645
United States, New York
Memorial Sloan Kettering Commack
Commack, New York, United States, 11725
Memorial Sloan Kettering Westchester
Harrison, New York, United States, 10604
Memorial Sloan Kettering Cancer Center
New York, New York, United States, 10065
Memorial Sloan Kettering Rockville Centre
Rockville Centre, New York, United States, 11570
Memorial Sloan Kettering Nassau
Uniondale, New York, United States, 11553
United States, Pennsylvania
Lehigh Valley Health Network
Allentown, Pennsylvania, United States, 18103
Sponsors and Collaborators
Memorial Sloan Kettering Cancer Center
Ferring Pharmaceuticals
University of Texas Southwestern Medical Center
University of Michigan
Layout table for investigator information
Principal Investigator: Michael Zelefsky, MD Memorial Sloan Kettering Cancer Center
Additional Information:
Layout table for additonal information
Responsible Party: Memorial Sloan Kettering Cancer Center Identifier: NCT03056638    
Other Study ID Numbers: 16-1686
First Posted: February 17, 2017    Key Record Dates
Last Update Posted: January 29, 2021
Last Verified: January 2021

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Memorial Sloan Kettering Cancer Center:
Androgen Deprivation Therapy
Ultra-Hypofractionated SBRT
Additional relevant MeSH terms:
Layout table for MeSH terms
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Prostatic Diseases