Examining how obesity affects puberty in girls

Investigating the Impact of Obesity on Pubertal Development in Girls

Observational National Institutes of Health Clinical Center (CC) · NCT02583646

This study is trying to see if overweight girls start puberty earlier than girls who are a normal weight by looking at their breast development and other health factors.

Quick facts

Study typeObservational
Enrollment150 (estimated)
Ages8 Years to 14 Years
SexFemale
SponsorNational Institutes of Health Clinical Center (CC) NIH
Locations1 site (Research Triangle Park, North Carolina)
Trial IDNCT02583646 on ClinicalTrials.gov

What this trial studies

This observational study investigates whether overweight girls experience earlier onset of puberty compared to their normal weight peers. Researchers will utilize breast ultrasounds and other assessments to differentiate between breast and fatty tissue, aiming to clarify the relationship between obesity and pubertal development. Participants will undergo physical exams, blood draws, and imaging studies to gather comprehensive data on their development. The study focuses on healthy girls aged 8-14 who show some breast development but have not yet started menstruating.

Who should consider this trial

Good fit: Ideal candidates are healthy girls aged 8-14 who are either normal weight or overweight and show some breast development without having started their first period.

Not a fit: Patients who are underweight, have chronic medical conditions, or are currently on medications affecting reproductive hormones may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the effects of obesity on pubertal timing, potentially guiding interventions for affected girls.

How similar studies have performed: While there have been studies examining puberty and obesity, this approach using advanced imaging techniques is relatively novel and may provide new insights.

Eligibility criteria

Show full inclusion / exclusion criteria
* INCLUSION CRITERIA:
* Girls without a chronic medical condition
* Normal weight (BMI 5th-85th%) or overweight/obese (BMI \> 85th%)
* 8-14 years old
* Some breast development
* Pre-menarchal

EXCLUSION CRITERIA:

* Treated with medications that may affect reproductive hormones (e.g. birth control pills).
* Pregnancy

During the study, the PI s discretion may be used to determine final eligibility. The PI s discretion may be used at any point in the study (pre-screening, clinical/lab assessments, etc.) to ensure participants are not subjected to unnecessary procedures or visits.

Where this trial is running

Research Triangle Park, North Carolina

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ObesityPubertyNormal PhysiologyUltrasoundPediatricNatural History
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.