Clinical trial · Interventional
Radium-223 Dichloride and Abiraterone Acetate Compared to Placebo and Abiraterone Acetate for Men With Cancer of the Prostate When Medical or Surgical Castration Does Not Work and When the Cancer Has Spread to the Bone, Has Not Been Treated With Chemotherapy and is Causing no or Only Mild Symptoms
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)
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
To determine if the addition of radium-223 dichloride to standard treatment is able to prolong life and to delay events specific for prostate cancer which has spread to the bone, such as painful fractures or bone pain which needs to be treated with an X-ray machine.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Prostatic Neoplasms | Prostate Neoplasm | ALIAS | 0.90 |
Interventions
Interventions (4)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Abiraterone | Drug | Abiraterone | ALIAS |
| Matching placebo (normal saline) | Drug | — | UNRESOLVED |
| Prednisone/Prednisolone | Drug | — | UNRESOLVED |
| Radium-223 dichloride (Xofigo, BAY88-8223) | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Radium-223 dichloride + Abi/Pred
- description
- Participants received 6 intravenous (IV) administrations of radium-223 dichloride 50 kiloBecquerel per kilogram (kBq/kg) (55 kBq/kg after implementation of National Institute of Standards and Technology \[NIST\] update) body weight at intervals of 4 weeks, along with oral abiraterone acetate tablets 1000 milligrams (mg) every day plus prednisone/prednisolone 5 mg twice daily (abi/pred) for 6 cycles, followed by abi/pred until an on-study symptomatic skeletal event (SSE) occurred (or other withdrawal criteria were met)
- interventionNames
- Drug: Radium-223 dichloride (Xofigo, BAY88-8223)
- Drug: Abiraterone
- Drug: Prednisone/Prednisolone
- type
- PLACEBO_COMPARATOR
- label
- Placebo + Abi/Pred
- description
- Participants received 6 IV administrations of placebo matched to radium-223 dichloride at intervals of 4 weeks, along with abi/pred for 6 cycles, followed by abi/pred until an on-study SSE occurred (or other withdrawal criteria were met)
- interventionNames
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Histologically confirmed adenocarcinoma of the prostate * Male subjects of age ≥ 18 years * Prostate cancer progression documented by prostate specific antigen (PSA) 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 * Maintenance of medical castration or surgical castration with testosterone less than 50 ng/dL (1.7nmol/L) * Eastern Cooperative Oncology Group performance status (ECOG PS) score 0 or 1 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 twice daily * 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 short-axis 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.
References
Publications (3)
- RESULTSmith M, Parker C, Saad F, Miller K, Tombal B, Ng QS, Boegemann M, Matveev V, Piulats JM, Zucca LE, Karyakin O, Kimura G, Matsubara N, Nahas WC, Nole F, Rosenbaum E, Heidenreich A, Kakehi Y, Zhang A, Krissel H, Teufel M, Shen J, Wagner V, Higano C. Addition of radium-223 to abiraterone acetate and prednisone or prednisolone in patients with castration-resistant prostate cancer and bone metastases (ERA 223): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Oncol. 2019 Mar;20(3):408-419. doi: 10.1016/S1470-2045(18)30860-X. Epub 2019 Feb 6. PMID 30738780
- DERIVEDShore N, Higano CS, George DJ, Sternberg CN, Saad F, Tombal B, Miller K, Kalinovsky J, Jiao X, Tangirala K, Sartor O. Concurrent or layered treatment with radium-223 and enzalutamide or abiraterone/prednisone: real-world clinical outcomes in patients with metastatic castration-resistant prostate cancer. Prostate Cancer Prostatic Dis. 2020 Dec;23(4):680-688. doi: 10.1038/s41391-020-0236-0. Epub 2020 May 13. PMID 32404868
- DERIVEDMatsubara N, Kimura G, Uemura H, Uemura H, Nakamura M, Nagamori S, Mizokami A, Kikukawa H, Hosono M, Kinuya S, Krissel H, Siegel J, Kakehi Y. A randomized, double-blind, comparison of radium-223 and placebo, in combination with abiraterone acetate and prednisolone, in castration-resistant metastatic prostate cancer: subgroup analysis of Japanese patients in the ERA 223 study. Int J Clin Oncol. 2020 Apr;25(4):720-731. doi: 10.1007/s10147-019-01589-6. Epub 2019 Dec 10. PMID 31823152