Completed PHASE3 INTERVENTIONAL 4-arm NCT00043069

Calcium With or Without Estrogen and/or Risedronate in Preventing Osteoporosis in Patients With Prostate Cancer

Osteoporosis Prevention in Prostate Cancer Patients Receiving Androgen Ablation Therapy: A Phase III Randomized, Placebo-Controlled, Double-Blind Study

Sponsor: Alliance for Clinical Trials in Oncology

Conditions Osteoporosis Prostate Cancer

Interventions Estrogen Antagonists calcium carbonate cholecalciferol placebo risedronate sodium

Updated 7 times since 2017 Last updated: Dec 5, 2016 Started: Nov 30, 2002 Primary completion: Jun 30, 2006 Completion: Jan 31, 2010

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A PHASE3 clinical study on Osteoporosis and Prostate Cancer, this trial is completed. The trial is conducted by Alliance for Clinical Trials in Oncology and has accumulated 7 data snapshots since 2002. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE3
Sep 2024 — Sep 2025 [monthly]

Completed PHASE3
Jul 2024 — Sep 2024 [monthly]

Completed PHASE3
Jan 2021 — Jul 2024 [monthly]

Completed PHASE3
Jun 2018 — Jan 2021 [monthly]

Completed PHASE3

▶ Show 2 earlier versions

Feb 2017 — Jun 2018 [monthly]

Completed PHASE3
Jan 2017 — Feb 2017 [monthly]

Completed PHASE3

First recorded

Nov 2002

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Alliance for Clinical Trials in Oncology
National Cancer Institute (NCI)

Data source: Alliance for Clinical Trials in Oncology

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Ames, United States , Anderson, United States , Aurora, United States , Billings, United States , Bismarck, United States , Bloomington, United States , Brainerd, United States , Burnsville, United States , Canton, United States , Carroll, United States and 65 more locations