- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03344211
Enzalutamide With or Without Radium Ra 223 Dichloride in Patients With Metastatic, Castration-Resistant Prostate Cancer
Immune Activation and Cellular Response From Enzalutamide Alone or With Radium223 in Men With Metastatic, Castration-Resistant Prostate Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
PRIMARY OBJECTIVES:
I. To evaluate changes in prostate cancer bone involvement induced by enzalutamide alone or in combination with radium Ra 223 dichloride (radium 223), specifically extent of prostate cancer infiltration, androgen receptor (AR) signaling and hormone levels, hematopoietic composition, apoptosis and proliferation.
II. To evaluate the immune activation of enzalutamide alone, or with radium 223.
SECONDARY OBJECTIVES:
I. To describe the adverse event profile for the combination in this patient population.
II. Rate of undetectable prostate specific antigen (PSA) nadir, PSA and alkaline phosphatase changes, rate of symptomatic skeletal events at 12 months, and rate of PSA and radiographic progression at 12 months.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive enzalutamide orally (PO) daily on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also receive radium Ra 223 dichloride intravenously (IV) on day 1. Treatment repeats every 28 days for up to 6 courses in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive enzalutamide as in Arm I. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 3 months for 1.5 years.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
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California
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Duarte, California, United States, 91010
- City of Hope
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Los Angeles, California, United States, 90033
- USC / Norris Comprehensive Cancer Center
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Los Angeles, California, United States, 90048
- Cedars Sinai Medical Center
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Men with metastatic, castration resistant prostate cancer involving the bone, which is symptomatic or asymptomatic
Castration resistance will be defined as the development of disease progression, defined as one of the following:
- Rising PSA x 2 values >= 2 weeks apart; minimum absolute PSA value 2 ng/mL
- Radiographic progression, with at least 1 new site of metastasis
- Symptomatic progression (ex: increase in pain despite stable imaging) AND despite ongoing luteinizing hormone-releasing hormone (LHRH) therapy OR testosterone level < 50
Men must have osseous metastases, but the presence of visceral metastases will not exclude patients from participation
- Prior external beam radiation therapy (> 4 weeks prior to enrollment) for palliation of osseous metastatic disease is allowed, provided there is at least one osseous metastasis which has not been irradiated and which can be biopsied
- No prior docetaxel or cabazitaxel chemotherapy for metastatic castration-resistant prostate cancer (mCRPC) (men treated with prior docetaxel administered as up-front therapy with androgen deprivation therapy [ADT] > 6 months ago will be eligible); prior abiraterone is allowed
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
- Hemoglobin >= 9.5 g/dL
- Absolute neutrophil count >= 1,500
- Platelets >= 100,000
- Total bilirubin within normal institutional limits
- Creatinine clearance (calculated or measured) > 30 mL/min
- At least one risk factor predicting higher likelihood of bone marrow sample yield: elevated alkaline phosphatase, low hemoglobin, or elevated lactate dehydrogenase (LDH)
- Ability to understand and the willingness to sign a written informed consent
Exclusion Criteria:
- Prior treatment with docetaxel or cabazitaxel for mCRPC
Prior treatment with ARN-509 or enzalutamide (there is a grace period for men who wish to enroll and who have recently started enzalutamide for the first time but have taken less than 15 days of therapy)
- Concurrent use of androgen deprivation therapy aside from LHRH agonist or antagonist (i.e. bicalutamide, flutamide, nilutamide, abiraterone, ketoconazole, estrogen); there will be a 2 week wash-out period from the last dose of any of these agents until the first dose of enzalutamide on study; patients who have just started enzalutamide for fewer than 5 doses prior to enrollment in the trial are still considered eligible and not subject to wash-out
- Concurrent oral corticosteroid use aside from adrenal replacement, or use of other immunosuppressive agents (ex: infliximab); topical or inhaled steroids will be allowed
- Received systemic therapy with radionuclides (e.g., strontium-89, samarium- 153, rhenium-186, or rhenium-188, or radium Ra 223 dichloride) for the treatment of bony metastases
- History of seizures except for remote with specific etiology which has resolved (ex: alcohol induced seizure); transient ischemic attack (TIA) or cerebrovascular accident (CVA) within last 6 months
- Known untreated central nervous system (CNS) metastases; leptomeningeal disease will be an absolute exclusion criterion due to limited life expectancy
- Chronic diarrhea > grade 1, or a diagnosis of Crohn?s or ulcerative colitis
- Known hepatitis (hep) B or C, or known cirrhosis (screening for viral hepatitis is not required)
- Uncontrolled intercurrent illness such as infection, symptomatic congestive heart failure, unstable angina pectoris, or psychiatric illness which would limit compliance with study requirements
- Imminent spinal cord compression based on clinical findings and/or magnetic resonance imaging (MRI); treatment should be completed for spinal cord compression
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Arm I (enzalutamide, radium 223)
Patients receive enzalutamide PO daily on days 1-28.
Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Patients also receive radium Ra 223 dichloride IV on day 1.
Treatment repeats every 28 days for up to 6 courses in the absence of disease progression or unacceptable toxicity.
|
Correlative studies
Given PO
Other Names:
Given IV
Other Names:
|
Experimental: Arm II (enzalutamide)
Patients receive enzalutamide as in Arm I. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
|
Correlative studies
Given PO
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in prostate cancer bone involvement
Time Frame: Up to 1.5 years
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Will be determined by standard pathologic analysis of the biopsies.
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Up to 1.5 years
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: David I Quinn, MD, University of Southern California
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Neoplasms, Glandular and Epithelial
- Genital Neoplasms, Male
- Prostatic Diseases
- Urogenital Diseases
- Male Urogenital Diseases
- Genital Diseases, Male
- Genital Diseases
- Prostatic Neoplasms
- Carcinoma
- Antineoplastic Agents
- Radium Ra 223 dichloride
Other Study ID Numbers
- 4P-16-2 (Other Identifier: USC / Norris Comprehensive Cancer Center)
- P30CA014089 (U.S. NIH Grant/Contract)
- NCI-2017-01418 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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