Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00541658 · ClinicalTrials.gov registry record · Phase 3

A Study of a 35 mg Delayed Release Formulation of Risedronate for Osteoporosis

A Phase 3 study of Postmenopausal Osteoporosis, sponsored by Warner Chilcott.

Completed
Registry status
Phase 3
Development phase
923
Enrollment target
20
Study locations

NCT00541658: Completed Phase 3 study of Postmenopausal Osteoporosis, sponsored by Warner Chilcott.

NCT00541658 is a Phase 3 study of Postmenopausal Osteoporosis that has completed, run by Warner Chilcott. The registered enrollment target is 923 participants, above the 455-participant average among 14 other Postmenopausal Osteoporosis trials with a reported enrollment target (103% higher). The trial reports 20 study locations across 14 states. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00541658, a Phase 3 study of Postmenopausal Osteoporosis, has completed, sponsored by Warner Chilcott.

COMPLETED
Registry status
Phase 3
Development phase
923 participants
Enrollment target
20
Study locations

Study Summary

The purpose of this trial is to study the efficacy of a 35 mg delayed release weekly dosing regimen as compared to the standard daily dosing regimen of risedronate 5 mg daily.

Interventions

  • DRUG risedronate

Study Locations (20)

California

  • Research Site - Oakland
  • Research Site - San Diego
  • Research Facility - Walnut Creek
  • Research Site - Walnut Creek

Florida

  • Research Site - Leesburg
  • Research Site - Melbourne
  • Research Site - South Miami

Illinois

  • Research Site - Champaign
  • Research Site - Chicago

Alabama

  • Research Site - Birmingham

Colorado

  • Research Site - Lakewood

Georgia

  • Research Site - Gainesville

Maryland

  • Research Site - Bethesda

Massachusetts

  • Research Site - Brockton

Trial Details

FieldValue
Enrollment Target 923 participants
Start Date 2007-10
Est. Completion 2010-04
Phase Phase 3
Warner Chilcott

53 total trials

What the finished NCT00541658 record still lists

NCT00541658 is an interventional study that assigns participants to a tested intervention. The registered 923 participants enrollment target is mid-sized for trials with a published cap, above the 455-participant average among 14 other Postmenopausal Osteoporosis trials with a reported enrollment target (103% higher).

The record links to 1 condition, with Postmenopausal Osteoporosis appearing as the primary indexed condition, and to 1 intervention - of which risedronate is the first listed.

NCT00541658 names 20 study sites across 14 states, led by California, Florida, Illinois.

Frequently Asked Questions

What is clinical trial NCT00541658 about?

NCT00541658 is a clinical study titled "A Study of a 35 mg Delayed Release Formulation of Risedronate for Osteoporosis". The purpose of this trial is to study the efficacy of a 35 mg delayed release weekly dosing regimen as compared to the standard daily dosing regimen of risedronate 5 mg daily.

What is the current status of trial NCT00541658?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 923 participants. The study started on 2007-10. Estimated completion is 2010-04.

What conditions does trial NCT00541658 study?

This clinical trial studies the following conditions: Postmenopausal Osteoporosis.

What interventions are being tested in trial NCT00541658?

The interventions under investigation include: risedronate (DRUG).

Who is sponsoring clinical trial NCT00541658?

This trial is sponsored by Warner Chilcott, which has 53 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00541658 being conducted?

This trial has 20 study locations across Alabama, California, Colorado, Florida, Georgia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Postmenopausal Osteoporosis

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00541658's enrollment target sits among peer trials

923 3rd of 14 higher than 12 of 14 other Postmenopausal Osteoporosis trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Postmenopausal Osteoporosis trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT04692493 · 924 participants · Phase 3

    Ra-pro Pragmatic Trial

  • NCT05656807 · 924 participants · NA

    Evaluation of Child Care Staff Weight Management Program

  • NCT06082453 · 924 participants · NA

    Modernizing Perinatal Syphilis Testing

  • NCT07151001 · 922 participants

    Pivotal Trial of Automated Artificial Intelligence (AI) Based System for Early Diagnosis of Diabetic Retinopathy

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00541658, the US trial registry maintained by the National Library of Medicine. NCT00541658 (mid enrollment · wide site footprint · completed) retrieved and formatted by PlainTrial, see methodology.