Fat or breast? new study aims to solve puberty puzzle in overweight girls
NCT ID NCT02583646
First seen Jun 27, 2026 · Last updated Sep 16, 2026 · Updated 9 times
Summary
This study looks at whether overweight girls start puberty earlier than girls of normal weight. Researchers will use breast ultrasound and other tests to tell the difference between breast tissue and fatty tissue. The study involves 150 healthy girls ages 8-14 who have some breast development but have not started their period. Participants will have physical exams, ultrasounds, blood and urine tests, and X-rays to measure body fat and bone maturity.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
-
93 people
The number who actually took part.
- Started
-
Dec 2015
- Expected to finish
-
Sep 2026
An estimate. End dates often move.
- Lead sponsor
-
A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
community sample
- Ages
-
8 to 14 years
- Sex
-
Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* 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.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Normal physiology are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
NIEHS, Research Triangle Park
Research Triangle Park, North Carolina, 27709, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Custom knee guides put to the test in obese patients
- A pill for obesity? early human trial puts MDR-001 to the test
- Can a weekly shot help people who still struggle with weight after bariatric surgery?
- Do GLP-1 Weight-Loss drugs change how teens eat and feel?
- Can electrical muscle stimulation boost exercise benefits after menopause?
- Can a cold cloth on the neck calm Post-Surgery nausea?