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NCT00000415 · ClinicalTrials.gov registry record · Phase 2

Physical Activity, Calcium, and Bone in Children

A Phase 2 study, sponsored by South Dakota State University.

Completed
Registry status
Phase 2
Development phase
224
Enrollment target

NCT00000415: Completed Phase 2 study, sponsored by South Dakota State University.

NCT00000415 is a Phase 2 study that has completed, run by South Dakota State University. The registered enrollment target is 224 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00000415, a Phase 2 study, has completed, sponsored by South Dakota State University.

COMPLETED
Registry status
Phase 2
Development phase
224 participants
Enrollment target

Study Summary

Doctors recommend that young children participate in daily physical activity to promote bone health. However, studies in adults show that physical activity and increased calcium intake cause noticeable benefits for bone health only when both factors occur together. The goal of this study is to find out whether calcium intake changes the response of bone to activity in children 3 to 4 years old. Children will participate in one of two programs conducted in childcare centers 5 days a week for 1 year. One program will involve activities that use large muscles (gross motor activity). The other will involve activities using small muscles (fine motor activity). We will give a calcium supplement (1 gram per day) to half of the children in each program and give the other half an inactive pill. We will measure bone mass and bone mineral density at the beginning and end of the study. We will take measurements 12 months after the program's completion to see if physical activity and/or calcium supplements have long-term effects on bone mineral density and physical activity.

Interventions

  • DRUG Calcium supplement
  • PROCEDURE Physical activity

Trial Details

FieldValue
Enrollment Target 224 participants
Start Date 1998-04
Est. Completion 2003-03
Phase Phase 2
South Dakota State University

11 total trials

What the finished NCT00000415 record still lists

NCT00000415 is an interventional study that assigns participants to a tested intervention. The registered 224 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (68% higher).

The record links to 0 conditions, and to 2 interventions - of which Calcium supplement is the first listed.

NCT00000415 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00000415 about?

NCT00000415 is a clinical study titled "Physical Activity, Calcium, and Bone in Children". Doctors recommend that young children participate in daily physical activity to promote bone health. However, studies in adults show that physical activity and increased calcium intake cause noticeable benefits for bone health only when both factors occur together. The goal of this study is to find ...

What is the current status of trial NCT00000415?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 224 participants. The study started on 1998-04. Estimated completion is 2003-03.

What interventions are being tested in trial NCT00000415?

The interventions under investigation include: Calcium supplement (DRUG), Physical activity (PROCEDURE).

Who is sponsoring clinical trial NCT00000415?

This trial is sponsored by South Dakota State University, which has 11 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00000415's enrollment target sits among peer trials

224 269th of 2000 higher than 1,727 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 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

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Source: ClinicalTrials.gov NCT00000415, the US trial registry maintained by the National Library of Medicine. NCT00000415 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.