MedTrace Logo

Vitamin D Deficiency in Adolescent Girls

NCT01180946 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2013-11-05

No results posted yet for this study

Summary

Fibroblast growth factor 23 (FGF23) is a newly discovered hormone which regulates phosphate and vitamin D levels. In this study, we are looking at what the normal levels of FGF23 are in adolescent girls and how these levels vary with other hormonal measurements. We will also be looking at whether vitamin D supplementation in adolescents who are deficient in vitamin D alters the levels of FGF23 and other factors including insulin resistance.

Conditions

  • Healthy
  • Vitamin D Deficiency

Interventions

DIETARY_SUPPLEMENT

ergocalciferol

ergocalciferol (a dietary form of vitamin D). 50,000 units by mouth once a week for 16 weeks.

OTHER

placebo pill

placebo pill once weekly for 16 weeks. At the end of the study, subjects in this arm will receive vitamin D repletion

Sponsors & Collaborators

  • Massachusetts General Hospital

    lead OTHER

Principal Investigators

  • Sherri-Ann Burnett-Bowie, MD, MPH · Massachusetts General Hospital

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
9 Years
Max Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-09-30
Primary Completion
2013-04-30
Completion
2013-04-30

Countries

  • United States

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01180946 on ClinicalTrials.gov