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Bone Accrual and Hormones in Response to Lactation

Lactation Clinical Trial

Official title:
Bone Accrual and Hormones in Response to Lactation

Clinical Trial Summary

This is a prospective observational trial of healthy postpartum women to investigate changes in bone density and markers of bone turnover during lactation. The study hypothesis is that women who breast-feed 5 months or more will lose bone density and subsequently regain the bone density after weaning. This study seeks to define determinants of the regain in bone density.

Clinical Trial Description

This is a prospective observational trial enrolling healthy postpartum women, ages 20 years and older with the intent to breast-feed from the UNC outpatient obstetrical clinics and the UVA outpatient obstetrical clinics. These women were studied at 3-5 visits in the year following their delivery to assess bone density, nutritional intake, exercise, and breast-feeding choices. The number of study visits depended on the timing of return of menses and interest in participating in the follow-up study (timepoints are: immediate postpartum, 3 months postpartum, return of menses, 6 months after return of menses and follow-up visit 6 months after final visit). Blood was taken for analysis of bone-related hormones, bone turnover and calcium homeostasis markers. The study focuses on women with extended lactation (at least 5 months of lactation) whereas women who cease lactation prior to 3 months will be the primary comparison group. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01563094
Study type Observational
Source University of Virginia
Contact
Status Completed
Phase
Start date January 2003
Completion date August 2010
View Details
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