NCT01892098

Brief Summary

The purpose of the study is to determine the effects of zinc supplementation on bone growth over four weeks. Participants will agree to attend two visits to our laboratory and at each will complete blood and urine samples, questionnaires related to diet and physical activity and will receive a bone scan at the first appointment.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
147

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2007

Longer than P75 for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2007

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2010

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2010

Completed
3.1 years until next milestone

First Submitted

Initial submission to the registry

June 28, 2013

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 3, 2013

Completed
Last Updated

July 3, 2013

Status Verified

July 1, 2013

Enrollment Period

3.2 years

First QC Date

June 28, 2013

Last Update Submit

July 2, 2013

Conditions

Keywords

ZincBoneAdolescentsGrowth

Outcome Measures

Primary Outcomes (3)

  • Serum Zinc

    Serum Zinc will be measured at the Baseline and 4 week time point to determine effects of placebo vs. supplement.

    4 weeks

  • Plasma IGF-1 and IGFBP-3

    Plasma IGF-1 and IGFBP-3 will be measured at Baseline and 4-weeks and analyzed using ELISA to determine changes.

    4 weeks

  • procollagen type 1 amino-terminal propeptide (P1NP)

    Bone turnover marker procollagen type 1 amino-terminal propeptide,

    4 weeks

Study Arms (2)

Zinc Sulfate

ACTIVE COMPARATOR

Subjects enrolled in this arm will receive 9mg elemental zinc (23mg zn sulfate)/day for 4 weeks.

Dietary Supplement: Zinc Sulfate

Cellulose Pill

PLACEBO COMPARATOR

Subject enrolled in this arm will receive a placebo.

Dietary Supplement: Placebo

Interventions

Zinc SulfateDIETARY_SUPPLEMENT

9mg elemental zinc via 23mg zinc sulfate/day

Zinc Sulfate
PlaceboDIETARY_SUPPLEMENT

Cellulose pill given as placebo

Cellulose Pill

Eligibility Criteria

Age9 Years - 11 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Healthy
  • Female
  • Ages 9-11
  • Pre-menarchal
  • Caucasian or African American

You may not qualify if:

  • Menses
  • Disease known to affect bone
  • Drugs known to affect bone
  • Vitamin/mineral supplements

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (3)

  • Lobene AJ, Kindler JM, Jenkins NT, Pollock NK, Laing EM, Grider A, Lewis RD. Zinc Supplementation Does Not Alter Indicators of Insulin Secretion and Sensitivity in Black and White Female Adolescents. J Nutr. 2017 Jul;147(7):1296-1300. doi: 10.3945/jn.117.248013. Epub 2017 Jun 7.

  • Kindler JM, Pollock NK, Laing EM, Jenkins NT, Oshri A, Isales C, Hamrick M, Lewis RD. Insulin Resistance Negatively Influences the Muscle-Dependent IGF-1-Bone Mass Relationship in Premenarcheal Girls. J Clin Endocrinol Metab. 2016 Jan;101(1):199-205. doi: 10.1210/jc.2015-3451. Epub 2015 Nov 17.

  • Berger PK, Pollock NK, Laing EM, Chertin V, Bernard PJ, Grider A, Shapses SA, Ding KH, Isales CM, Lewis RD. Zinc Supplementation Increases Procollagen Type 1 Amino-Terminal Propeptide in Premenarcheal Girls: A Randomized Controlled Trial. J Nutr. 2015 Dec;145(12):2699-704. doi: 10.3945/jn.115.218792. Epub 2015 Oct 21.

MeSH Terms

Conditions

Osteoporosis

Interventions

Zinc Sulfate

Condition Hierarchy (Ancestors)

Bone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

SulfatesSulfuric AcidsSulfur AcidsSulfur CompoundsInorganic ChemicalsZinc Compounds

Study Officials

  • Richard D Lewis, PhD

    The University of Georgia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 28, 2013

First Posted

July 3, 2013

Study Start

February 1, 2007

Primary Completion

May 1, 2010

Study Completion

June 1, 2010

Last Updated

July 3, 2013

Record last verified: 2013-07