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Completed No phase listed Observational Accepts healthy volunteers

The Effect of Body Mass Index on Etonogestrel Hormone Levels in Women Using the Single-rod Contraceptive Implant

ClinicalTrials.gov ID: NCT01855620

Public ClinicalTrials.gov record NCT01855620. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 11, 2026, 7:56 PM EST

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Official title

The Effect of Body Mass Index on Etonogestrel Levels in Women Using the Single-rod Contraceptive Implant

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Two-thirds of young women in the United States are overweight or obese. This excess weight may affect how their body metabolizes drugs such as different birth control methods. There is a not a lot of research about how excess weight could affect the hormone levels of the contraceptive implant. Methods like the implant contain only progesterone, which is a hormone that does not increase a woman's risk of blood clot. These methods would be preferred for overweight and obese women because excess weight also increases a woman's risk of blood clot. The investigators propose a study comparing blood hormone levels of women using the implant for at least twelve months and in all weight categories. The investigators hope to show that all women, regardless of weight, will have hormone levels high enough to prevent pregnancy.

Study identification

NCT ID
NCT01855620
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Lead sponsor
Columbia University
Other
Enrollment
52 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
Not listed
Sex
Female
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 2012 (Type not available)
Primary completion
Nov 2013 (Actual)
Completion
Mar 2014 (Actual)
Last update posted
Apr 14, 2014

2012 – 2014

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Columbia University Medical Center New York New York 10032 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01855620, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 14, 2014 · Synced Nov 11, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01855620 live on ClinicalTrials.gov.

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