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Comparing Continuation or De-escalation of Bone Modifying Agents (BMA) in Patients Treated for Over 2 Years for Bone Metastases From Either Breast or Castration-resistant Prostate Cancer

StatusActive, Not Recruiting
PhasePhase 4
Started2020-10-09
View on ClinicalTrials.gov ↗

Amendment history

2026-07-20
Study Status v9
Completion pushed: 2026-06 → 2026-09
2026-04-01
2 amendments v7-v8
2 re-verifications since 2025-11-26, no change to tracked fields
2025-07-03
Study Status, Study Description, Contacts/Locations, References v6
Primary completion dateestimated 2025-06→confirmed 2025-04-17
Study sites1→5
2024-07-23
Recruiting→Active, Not Recruiting Study Status, Study Design, Contacts/Locations v5
Trial statusRecruiting→Active, Not Recruiting
Primary completion date2024-11→2025-06
Completion date2025-11→2026-06
Study sitesdetails revised at 1 of 1 site
2023-05-10
Study Status v4
Primary completion date2023-11→2024-11
Completion date2024-11→2025-11
Show 3 earlier versions
2022-04-19
2 amendments v2-v3
2 re-verifications since 2021-04-08, no change to tracked fields
2020-10-22
Not Yet Recruiting→Recruiting Study Status, Contacts/Locations v1
Trial statusNot Yet Recruiting→Recruiting
Start dateestimated 2020-10→confirmed 2020-10-09
Study sites0→1
2020-09-08
Original filing
The investigators propose to perform a pragmatic, multicenter, open-label, randomised clinical trial to demonstrate the efficacy and safety of either continuing or further de-escalating BMA after a minimum of two years of BMA treatment in patients with bone metastases from breast cancer and castration-resistant prostate cancer
Trial Details
NCT Number NCT04549207
Lead Sponsor Ottawa Hospital Research Institute
Conditions Breast Cancer, Castration-resistant Prostate Cancer
Enrollment 240 participants
Start Date 2020-10-09
Primary Completion 2025-04-17 (estimated)
Study Completion 2026-09 (estimated)
Updated on ClinicalTrials.gov 2026-07-21