NCT02355717

Brief Summary

The proposed research brings together complementary expertise to systematically elucidate the longitudinal effects of (1) total and regional body fat and (2) the metabolic impairment that accompanies obesity on bone development during growth. The contribution of this research will be significant because it will provide a solid foundation for understanding the influence of fat (total and regional distribution) on overall bone strength, and whether insulin resistance, beta-cell dysfunction, abnormal lipids, and inflammation could be underpinning factors in the fat-bone strength relationship via effects on bone modeling activity. This knowledge will provide critical information needed to maximize potential therapeutic interventions to counter the linked risks of obesity and osteoporosis, both major public health concerns.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
400

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2014

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

December 1, 2014

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 22, 2015

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 4, 2015

Completed
6.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
29 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2021

Completed
Last Updated

November 20, 2019

Status Verified

November 1, 2019

Enrollment Period

7 years

First QC Date

January 22, 2015

Last Update Submit

November 18, 2019

Conditions

Keywords

children, boneSimple obesitycardiovascular diseaseosteoporosisdiabetes

Outcome Measures

Primary Outcomes (2)

  • Bone mineral mass

    Measurement of bone quantity assessed by peripheral quantitative computed tomography

    Change from baseline bone mineral mass at 2 years

  • Bone strength-strain index

    Measurement of bone quality assessed by peripheral quantitative computed tomography

    Change from baseline bone strength-strain index at 2 years

Secondary Outcomes (2)

  • Serum N-terminal propeptide of type 1 procollagen (P1NP)

    Change from baseline P1NP at 2 years

  • Serum C-terminal telopeptide of type 1 collagen (CTX)

    Change from baseline CTX at 2 years

Study Arms (1)

Prospective Cohort

400 otherwise healthy children and adolescents aged 9-15 years will be recruited to participate in a 2-year longitudinal study.

Other: Observational Study

Interventions

Prospective Cohort

Eligibility Criteria

Age9 Years - 15 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

400 children and adolescents aged 9 to 15 years

You may qualify if:

  • Otherwise healthy children and adolescents between 9 and 15 years old
  • Subject and parent/guardian understands the study protocol and agrees to comply with it
  • Informed Consent Form signed by the parent/guardian and assent signed by the subject

You may not qualify if:

  • Subjects with (a history of) metabolic or gastrointestinal diseases including hepatic disorders
  • Subjects presenting chronic degenerative and/or inflammatory diseases
  • Subjects receiving systemic treatment or topical treatment likely to interfere with evaluation of the study parameters (salicylates, antibiotics)
  • Subjects receiving corticosteroid treatment
  • Subjects using oral anticoagulants
  • Subjects who have participated in a clinical study more recently than one month before the current study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical College of Georgia; Augusta University

Augusta, Georgia, 30912, United States

RECRUITING

Related Publications (7)

  • Pollock NK, Laing EM, Baile CA, Hamrick MW, Hall DB, Lewis RD. Is adiposity advantageous for bone strength? A peripheral quantitative computed tomography study in late adolescent females. Am J Clin Nutr. 2007 Nov;86(5):1530-8. doi: 10.1093/ajcn/86.5.1530.

    PMID: 17991669BACKGROUND
  • Pollock NK, Bernard PJ, Wenger K, Misra S, Gower BA, Allison JD, Zhu H, Davis CL. Lower bone mass in prepubertal overweight children with prediabetes. J Bone Miner Res. 2010 Dec;25(12):2760-9. doi: 10.1002/jbmr.184. Epub 2010 Jul 16.

    PMID: 20641032BACKGROUND
  • Pollock NK, Laing EM, Hamrick MW, Baile CA, Hall DB, Lewis RD. Bone and fat relationships in postadolescent black females: a pQCT study. Osteoporos Int. 2011 Feb;22(2):655-65. doi: 10.1007/s00198-010-1266-6. Epub 2010 May 7.

    PMID: 20449571BACKGROUND
  • Pollock NK, Bernard PJ, Gutin B, Davis CL, Zhu H, Dong Y. Adolescent obesity, bone mass, and cardiometabolic risk factors. J Pediatr. 2011 May;158(5):727-34. doi: 10.1016/j.jpeds.2010.11.052. Epub 2011 Jan 13.

    PMID: 21232765BACKGROUND
  • Pollock NK, Laing EM, Taylor RG, Baile CA, Hamrick MW, Hall DB, Lewis RD. Comparisons of trabecular and cortical bone in late adolescent black and white females. J Bone Miner Metab. 2011 Jan;29(1):44-53. doi: 10.1007/s00774-010-0186-z. Epub 2010 May 11.

    PMID: 20458605BACKGROUND
  • Pollock NK, Bernard PJ, Gower BA, Gundberg CM, Wenger K, Misra S, Bassali RW, Davis CL. Lower uncarboxylated osteocalcin concentrations in children with prediabetes is associated with beta-cell function. J Clin Endocrinol Metab. 2011 Jul;96(7):E1092-9. doi: 10.1210/jc.2010-2731. Epub 2011 Apr 20.

    PMID: 21508147BACKGROUND
  • Laing EM, Tripp RA, Pollock NK, Baile CA, Della-Fera MA, Rayalam S, Tompkins SM, Keys DA, Lewis RD. Adenovirus 36, adiposity, and bone strength in late-adolescent females. J Bone Miner Res. 2013 Mar;28(3):489-96. doi: 10.1002/jbmr.1776.

    PMID: 23296755BACKGROUND

Related Links

MeSH Terms

Conditions

ObesityCardiovascular DiseasesDiabetes Mellitus, Type 2OsteoporosisDiabetes Mellitus

Interventions

Observation

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsGlucose Metabolism DisordersMetabolic DiseasesEndocrine System DiseasesBone Diseases, MetabolicBone DiseasesMusculoskeletal Diseases

Intervention Hierarchy (Ancestors)

MethodsInvestigative Techniques

Study Officials

  • Norman K Pollock, Ph.D.

    Department of Medicine, Medical College of Georgia, Augusta University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Norman K Pollock, Ph.D.

CONTACT

Celestine F Williams, M.S.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, Department of Medicine

Study Record Dates

First Submitted

January 22, 2015

First Posted

February 4, 2015

Study Start

December 1, 2014

Primary Completion

December 1, 2021

Study Completion

December 30, 2021

Last Updated

November 20, 2019

Record last verified: 2019-11

Locations