AASUR in High Risk Prostate Cancer
ARN-509+Abiraterone Acetate+Leuprolide With Stereotactic, Ultra-Hypofractionated Radiation (AASUR) in Very High Risk Prostate Cancer: A Single Arm, Phase II Study
2 other identifiers
interventional
64
1 country
11
Brief Summary
The purpose of this study is to determine whether anti-testosterone medications, when administered before, during, and after high-dose, precision radiation, will be effective in preventing the prostate cancer from returning.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2 prostate-cancer
Started May 2016
Longer than P75 for phase_2 prostate-cancer
11 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 12, 2016
CompletedStudy Start
First participant enrolled
May 12, 2016
CompletedFirst Posted
Study publicly available on registry
May 13, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 22, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
January 22, 2026
CompletedResults Posted
Study results publicly available
April 13, 2026
CompletedApril 13, 2026
January 1, 2026
9.7 years
May 12, 2016
February 18, 2026
March 31, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants With Biochemical Failure
Biochemical failure is defined as an increase in PSA by more than 2ng/mL above the nadir value. PSA rise equals or exceeds 2ng/mL will be the date of failure.
36 months
Study Arms (1)
patients with prostate cancer
EXPERIMENTALEligible patients will receive a total of 6 months of leuprolide, abiraterone, and ARN-509 to begin three months prior to RT and continuing until approximately 3 months post-RT. Patients will be assessed every 4 weeks (±1 week) (a cycle = 28 days) throughout their treatment with the study drugs, and at least once during RT.
Interventions
Eligibility Criteria
You may qualify if:
- Histological or cytologic evidence of adenocarcinoma of the prostate confirmed at local institution.
- At least one of the following:
- Two or more high risk features OR
- Gleason score 8-10
- PSA ≥20 ng/mL within two months prior to registration
- Clinical Stage ≥T3 disease, as determined by standard digital rectal examination (DRE)
- Radiographic stage ≥T3 disease as determined by a ≥75% probability of extracapsular extension or seminal vesicle invasion per reading radiologist
- Any Gleason 9 or 10 disease OR \>4 cores of Gleason 8 disease
- KPS ≥ 70%
- IPSS (International Prostate Symptom Score) ≤ 20F
- Patient must be available for follow-up
- Laboratory test findings within 28 days of study registration :
- Adequate hepatic function:
- Bilirubin ≤ 1.5 times the upper institutional limits of normal (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. If the total bilirubin is \>1.5 x the institutional ULN, direct and indirect bilirubin will be measured and if direct bilirubin is ≤ 1.5 x the institutional ULN, the patient will be eligible to participate
- SGPT (ALT) and SGOT (AST) ≤ 2.5 x ULN
- +11 more criteria
You may not qualify if:
- Radiographic evidence of metastatic disease
- Patients with one or more positive lymph nodes as determined by radiographic assessment of MRI or CT NOTE: lymph nodes noted on MRI or CT to be \> 1.5 cm on the short axis will require review by the local reference radiologist per institutional RECIST review practices. If the lymph nodes are considered suspicious on repeat review, they must be confirmed negative for study participation
- Prior treatment for prostate cancer; this includes any prior surgery (including Transurethral resection of the prostate (TURP), prostate cancer treatment), chemotherapy, radiation, or anti-androgen therapy/androgen deprivation therapy with the following exception: patients who will have been on LHRH Agonist/Antagonist Therapy for \</= 1 month prior to registration are permitted to enroll with study PI approval.
- Prior use of steroidal antiandrogens (megestrol acetate, cyproterone acetate), AR partial agonists, ketoconazole, chemotherapy, immunotherapy, estrogens, radiopharmaceuticals within 3 months before registration
- Prior use of non-steroidal anti-androgens (e.g., bicalutamide, flutamide, nilutamide) within 1 month before registration
- Prior treatment with medications known to lower the seizure threshold within 4 weeks of registration (see section 5.5.2 apalutamide for a list of prohibited medications)
- 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, adequately treated Stage I or Stage II cancer currently in complete remission, or any other cancer that has been in complete remission for at least 3 years
- Severe hepatic impairment (Child-Pugh Class C)
- Concurrent treatment with strong CYP3A4 inducers (e.g., phenytoin, carbamazepine, rifampin, rifabutin, rifapentine, phenobarbital)
- Major surgery within 4 weeks of registration
- Presence of a pacemaker
- Active infection or other medical condition that would make prednisone use contraindicated
- A known hypersensitivity to abiraterone acetate, apalutamide, and prednisone and/or any of their excipients
- Severe or unstable angina, myocardial infarction, symptomatic congestive heart failure, arterial or venous thromboembolic events (e.g., pulmonary embolism, cerebrovascular accident including transient ischemic attacks), or clinically significant ventricular arrhythmias within 6 months prior to registration.
- Seizure or known condition that may pre-dispose to seizure (including but not limited to prior stroke, transient ischemic attack, loss of consciousness within 1 year prior to randomization, brain arteriovenous malformation; or intracranial masses such as schwannomas and meningiomas that are causing edema or mass effect)
- +13 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Memorial Sloan Kettering Cancer Centerlead
- Janssen Pharmaceuticalscollaborator
- University of Michigancollaborator
- Weill Medical College of Cornell Universitycollaborator
Study Sites (11)
John Hopkins Medical Center
Baltimore, Maryland, 21287, United States
University of Michigan Health System
Ann Arbor, Michigan, 48109, United States
Memorial Sloan Kettering Monmouth
Middletown, New Jersey, 07748, United States
Memorial Sloan Kettering Bergen
Montvale, New Jersey, 07645, United States
Memorial Sloan Kettering Commack
Commack, New York, 11725, United States
Memorial Sloan Kettering Westchester
Harrison, New York, 10604, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
Weill Cornell Medical Center
New York, New York, 10065, United States
Memorial Sloan Kettering Rockville
Rockville Centre, New York, United States
Memorial Sloan Kettering Nassau
Uniondale, New York, 11553, United States
Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, 19107, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Sean McBride, MD
- Organization
- Memorial Sloan Kettering Cancer Center
Study Officials
- PRINCIPAL INVESTIGATOR
Sean M McBride, MD, MPH
Memorial Sloan Kettering Cancer Center
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 12, 2016
First Posted
May 13, 2016
Study Start
May 12, 2016
Primary Completion
January 22, 2026
Study Completion
January 22, 2026
Last Updated
April 13, 2026
Results First Posted
April 13, 2026
Record last verified: 2026-01