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A study investigating the safety of radium-223 dichloride with abiraterone acetate and prednisone/prednisolone given to patients with castration-resistant prostate cancer that has spread to bone, and who never had chemotherapy before.

A phase III randomized, double-blind, placebo-controlled trial of radium-223 dichloride in combination with abiraterone acetate and prednisone/prednisolone in the treatment of asymptomatic or mildly symptomatic chemotherapy-naïve subjects with bone predominant metastatic castration-resistant prostate cancer (CRPC)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-003438-33-ES
Enrollment
800
Registered
2014-02-07
Start date
2014-03-28
Completion date
Unknown
Last updated
2023-10-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Asymptomatic or mildly symptomatic chemotherapy-naïve bone predominant metastatic castration-resistant prostate cancer MedDRA version: 16.1 Level: PT Classification code 10036909 Term: Prostate cancer metastatic System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Sponsors

Bayer HealthCare AG
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: -Histologically or cytologically confirmed adenocarcinoma of the prostate - Male subjects of age > = 18 years - Prostate cancer progression documented by prostate specific antigen according to the Prostate Cancer Working Group 2 (PCWG2) criteria or radiological progression according to Response Evaluation Criteria in Solid Tumors (RECIST), version 1.1. - Two or more bone metastases on bone scan within 4 weeks prior to randomization with no lung, liver, other visceral and/or brain metastasis. - Asymptomatic or mildly symptomatic prostate cancer. - Subjects who received combined androgen blockade with an anti-androgen must have shown PSA progression after discontinuing the anti-androgen prior to enrollment. - Medical or surgical castration with testosterone less than 50 ng/dL (1.7nmol/L). - Eastern Cooperative Oncology Group (ECOG) Performance Status 0 or 1 Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 600 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 200

Exclusion criteria

Exclusion criteria: - Prior cytotoxic chemotherapy for the treatment of CRPC, including taxanes, mitoxantrone and estramustine - Any chronic medical condition requiring a higher dose of corticosteroid than 5 mg prednisone/prednisolone bid. - Pathological finding consistent with small cell carcinoma of the prostate - History of visceral metastasis, or presence of visceral metastasis detected by screening imaging examinations - History of or known brain metastasis. - Malignant lymphadenopathy exceeding 3 cm in shortaxis diameter. - Blood transfusion or erythropoietin stimulating agents prior 4 weeks of screening and during the whole screening period before randomization - Imminent spinal cord compression based on clinical findings and/or magnetic resonance imaging (MRI). Subjects with history of spinal cord compression should have completely recovered - Use of opiate analgesics for cancer-related pain, including codeine and dextropropoxyphene, currently or anytime during the 4- week period prior to randomization.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective is to compare the clinical benefit of radium-223 dichloride versus placebo in combination with abiraterone and prednisone/prednisolone in asymptomatic or mildly symptomatic chemotherapynaïve bone predominant metastatic castration-resistant prostate cancer patients.;Secondary Objective: The secondary objectives are to compare overal survival, time to opiate use for cancer pain, time to pain progression, time to cytotoxic chemotherapy, radiological progression free survival, acute and long term safety.;Primary end point(s): Symptomatic skeletal event free survival(SSE-FS);Timepoint(s) of evaluation of this end point: At 3 years

Secondary

MeasureTime frame
Secondary end point(s): 1. Overall Survival 2. Time to opiate use for cancer pain 3. Time to pain progression 4. Time to cytotoxic chemotherapy 5. Radiological progression free survival (rPFS) 6. Number of participants with adverse events as a measure of safety and tolerability;Timepoint(s) of evaluation of this end point: 1. At 3 years for interim At 6 years for final 2. At 3 years 3. At 3 years 4. At 3 years 5. At 3 years 6. Up to 3 years

Countries

Australia, Belgium, Brazil, Canada, China, Finland, France, Germany, Israel, Italy, Japan, Netherlands, Norway, Poland, Russian Federation, Spain, Sweden, United Kingdom, United States

Contacts

Public ContactBayer Clinical Trials Contact

Bayer HealthCare AG

clinical-trials-contact@bayerhealthcare.com900102372

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026