- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02217566
Study of Abiraterone Acetate in Participants With Metastatic Castration-Resistant Prostate Cancer (mCRPC), Chemo-Naive, Who Received a Prior Diethylstilbestrol Therapy
January 9, 2020 updated by: Janssen Research & Development, LLC
Abiraterone Acetate in Patients With Metastatic Castration-Resistant Prostate Cancer, Chemo-Naive, Who Received a Prior Diethylstilbestrol Therapy
The purpose of this study is to evaluate the efficacy, based on prostate-specific antigen (PSA) progression, of abiraterone acetate in participants with metastatic (spread of cancer cells from one part of the body to another) castration (any action, surgical, chemical, or otherwise, by which a male loses the functions of the testes) resistant prostate cancer (cancer in prostrate; a gland that makes fluid that aids movement of sperm) (mCRPC), chemo-naive (treatment of cancer is not done using drugs), who received a prior diethylstilbestrol therapy (DES).
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
This is a Phase 2, multinational (when medical research study takes place in more than one country), multicenter (when more than one hospital or medical school team work on a medical research study), open-label (all people know the identity of the intervention), and single arm study to determine benefits of abiraterone acetate and low-dose prednisone to androgen deprivation therapy (ADT) in mCRPC participants who failed to prior DES therapy.
The study will consist of a Screening Phase of up to 28 days before enrollment; a PSA Evaluation Phase; and a Follow-up Phase of up to 24 months.
Each cycle of abiraterone therapy will be of 28 days.
Participants will receive 1000 milligram (mg) abiraterone acetate orally once daily plus prednisone 5 mg orally once daily plus stable regimen of ADT (luteinizing hormone-releasing hormone [LHRH] agonists) as per Investigator's discretion.
Treatment will continue until PSA progression, clinical progression, consent withdrawal, or the occurrence of unacceptable toxicity.
Efficacy will primarily be assessed by time to PSA progression.
Participants' safety will be monitored throughout the study.
Study Type
Interventional
Enrollment (Actual)
46
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Porto Alegre, Brazil
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Rio De Janeiro, Brazil
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Santo Andre, Brazil
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Sao Paulo, Brazil
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São Paulo, Brazil
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Male
Description
Inclusion Criteria:
- Histologically or cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell histology
- Prior therapy with diethylstilbestrol (DES) for castration resistant prostate cancer. Participants should demonstrate evidence of progression on DES or evidence of grades 3/4 toxicities on DES
- Metastatic disease documented by positive bone scan or metastatic lesions on computerized tomography (CT) or magnetic resonance imaging (MRI)
- May have received prior androgen blockage (bicalutamide or flutamide) but must have been discontinued for least 28 days
- Ongoing androgen deprivation therapy (ADT) (luteinizing hormone-releasing hormone [LHRH] agonist or orchiectomy), with serum testosterone level of less than 50 nanogram per deciliter (1.7 nanomole per liter) and eligible participants must maintain ADT
Exclusion Criteria:
- Active infection or other medical condition that would make prednisone use contraindicated
- Any chronic medical condition requiring a higher systemic dose of corticosteroid than 5 milligram (mg) prednisone per day
- Pathological finding consistent with small cell carcinoma of the prostate
- Known brain metastasis
- Has had prior cytotoxic chemotherapy or biologic therapy for the treatment of metastatic castration-resistant prostate cancer (mCRPC)
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Abiraterone Acetate
Participants will receive abiraterone acetate 1000 milligram (mg) orally once daily along with prednisone 5 mg orally once daily and androgen deprivation therapy (ADT) as per Investigator's discretion until prostate-specific Antigen (PSA) progression, clinical progression, consent withdrawal, or the occurrence of unacceptable toxicity.
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Participants will receive abiraterone acetate 1000 mg (4*250 mg tablets) orally once daily until PSA progression, clinical progression, consent withdrawal, or the occurrence of unacceptable toxicity.
Other Names:
Participants will prednisone 5 mg orally once daily from Day 1 of Cycle 1 and continues until PSA progression, clinical progression, consent withdrawal, or the occurrence of unacceptable toxicity.
Participants will remain on a stable regimen of ADT, that is, luteinizing hormone-releasing hormone (LHRH) agonists including leuprolide acetate and goserelin acetate as per Investigator's discretion.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Time to Prostate-specific Antigen (PSA) Progression
Time Frame: Up to 2 years
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Time to PSA progression was calculated from date of enrollment to the date of first documentation of PSA progression.
As per Prostate Cancer Clinical Trials Working Group (PCWG2) criteria, PSA progression was defined as greater than or equal to (>=) 25 percent (%) and >=2 nanogram/milliliter (ng/mL) after 12 weeks (in case of no decline in PSA from Baseline), or first PSA increase that is >=25% and >=2 ng/mL above the nadir, and which was confirmed by a second value 3 or more weeks later (in case of decline of PSA from Baseline).
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Up to 2 years
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants Who Achieved Prostate-Specific Antigen (PSA) Response
Time Frame: Week 12 to any time up to 2 years
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The PSA response according to Prostate Specific Antigen Working Group 3 criteria was defined as at least 50% decrease in PSA level from Baseline.
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Week 12 to any time up to 2 years
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Overall Survival
Time Frame: Up to 4 years
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Overall survival was defined as the time from date of the first dose of abiraterone acetate to the date of death due to any cause.
For participants who did not die until the time of analysis, survival time was censored at the time of last contact alive.
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Up to 4 years
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Percentage of Participants With Pain Progression as Assessed by Brief Pain Inventory - Short Form (BPI-SF) - Pain Severity Score
Time Frame: Up to 2 years
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The BPI-SF is a publicly available instrument to assess the pain and includes severity and interference scores.
BPI-SF is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions of a participant.
Pain severity score is a mean value for BPI-SF questions 3, 4, 5 and 6 (questions inquiring about the extent of pain, where the extent is ranked from 0 [no pain] to 10 [pain as bad as you can imagine]).
Pain severity progression was defined as an increase in score of 30% or greater from baseline without decrease in analgesic use.
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Up to 2 years
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Percentage of Participants With Pain Progression as Assessed by Brief Pain Inventory - Short Form (BPI-SF) - Pain Interference Score
Time Frame: Up to 2 years
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The BPI-SF is a publicly available instrument to assess the pain and includes severity and interference scores.
BPI-SF is an 11-item self-report questionnaire that is designed to assess the severity and impact of pain on daily functions of a participant.
Pain interference score is mean value for the 7 BPI-SF questions (questions inquiring about the extent of interference with activities by pain) where the extent is ranked from 0 (does not interfere) to 10 (completely interferes).
Pain interference progression was defined as an increase in score of 50% or greater from baseline without decrease in analgesic use.
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Up to 2 years
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Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Up to 4 years
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An AE is any untoward medical occurrence in a participant who will receive study drug without regard to possibility of causal relationship.
An SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; or congenital anomaly.
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Up to 4 years
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
September 23, 2014
Primary Completion (Actual)
October 26, 2018
Study Completion (Actual)
October 26, 2018
Study Registration Dates
First Submitted
August 13, 2014
First Submitted That Met QC Criteria
August 13, 2014
First Posted (Estimate)
August 15, 2014
Study Record Updates
Last Update Posted (Actual)
January 13, 2020
Last Update Submitted That Met QC Criteria
January 9, 2020
Last Verified
January 1, 2020
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Genital Neoplasms, Male
- Prostatic Diseases
- Prostatic Neoplasms
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Anti-Inflammatory Agents
- Antineoplastic Agents
- Glucocorticoids
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Cytochrome P-450 Enzyme Inhibitors
- Hormone Antagonists
- Steroid Synthesis Inhibitors
- Prednisone
- Abiraterone Acetate
- Androgens
Other Study ID Numbers
- CR103352
- 212082PCR2036 (Other Identifier: Janssen Research & Development, LLC)
Drug and device information, study documents
Studies a U.S. FDA-regulated device product
No
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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