Calcium and Bone Mass in Young Females

May 21, 2013 updated by: Ohio State University

Long Term Effects of Calcium on Bone Mass in Young Females

We originally suggested that calcium in the diet is important in determining the amount of bone (bone mass) that builds up in young adults. We are testing the effect of calcium on bone mass in 354 Caucasian (white) girls. At the start of this 7-year study, the average age of the girls was 11 years, and they had not yet reached puberty. The study will also provide information about the effect of calcium on body composition (body fat) and blood pressure in young women.

We have been giving calcium to one group of participants in this study and giving a placebo (an inactive pill, or "sugar pill") to the other group. The results of this research will be important in preventing osteoporosis, because building more bone as a young person should reduce a woman's chances of developing osteoporosis later in life.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This study evaluates the effect of calcium on bone mass accretion over 7 years in a cohort of 354 young females who were in pubertal Stage II at the start of the study. The average age of study participants at entry was 11 years; at the end of the study participants were 18 years old.

The study looks at skeletal development under the influence of heredity, nutrition (calcium), and physical exercise. We gave calcium to participants in one arm of this clinical trial calcium. Participants in the other arm of the trial were given a placebo. The main outcome variable is the bone mass measured at different skeletal regions.

The study will also provide data about the efficacy of calcium supplementation with regard to hypertension prevention and obesity. The results of this research will be important in preventing osteoporosis.

Study Type

Interventional

Enrollment

354

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Ohio
      • Columbus, Ohio, United States, 43210
        • OSU Bone and Mineral Metabolism Laboratory

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

8 years to 13 years (CHILD)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Pubertal stage II
  • Calcium intake below a threshold level
  • Caucasian
  • Normal health

Exclusion Criteria:

  • Medications affecting calcium and bone metabolism
  • Chronic diseases
  • Metabolic bone disease
  • Abnormality in calcium metabolism

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: DOUBLE

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ohio State University

Collaborators

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Investigators

  • Principal Investigator: Velimir Matkovic, MD, PhD, Ohio State University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 1991

Study Completion

December 1, 2001

Study Registration Dates

First Submitted

November 3, 1999

First Submitted That Met QC Criteria

November 3, 1999

First Posted (ESTIMATE)

November 4, 1999

Study Record Updates

Last Update Posted (ESTIMATE)

May 22, 2013

Last Update Submitted That Met QC Criteria

May 21, 2013

Last Verified

May 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • R01AR040736 (NIH)
  • NIAMS-007

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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