Pubertal Blockade and Estradiol Effects on Cardiometabolic Health for Transitioning Youth

NCT ID: NCT04596592

Last Updated: 2025-06-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

90 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-02-15

Study Completion Date

2026-07-31

Brief Summary

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To evaluate the effect of estradiol with or without a prior gonadotropin releasing hormone analogue on insulin sensitivity and vascular function in transgender females compared to cisgender controls.

Detailed Description

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Conditions

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Transgenderism Gender Dysphoria Insulin Sensitivity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Transgender

No interventions assigned to this group

Cisgender

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Identify as a transgender female
* Age 13-16 years at the time of enrollment
* If on a gonadotropin releasing hormone analogue, \> 6 months exposure
* Plan to start estradiol clinically in \< 4 months


* Males and females ages 13-16 years

Exclusion Criteria

* Cognitive, psychiatric, or physical impairment resulting in inability to tolerate the study procedures
* Antipsychotic medication use
* Type 1 or 2 diabetes (by medical history)
* Polycystic ovarian syndrome (PCOS for cisgender females)
* Hypertension (resting BP ≥ 140/90 mm/Hg)
* Weight\> 400 lbs
* On oral progesterone medications (including oral progesterone or progestin, combined oral contraceptives or etonogestrel implant)
* Pregnancy (for cisgender females)
Minimum Eligible Age

13 Years

Maximum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role collaborator

University of Colorado, Denver

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Natalie Nokoff, MD, MSCS

Role: PRINCIPAL_INVESTIGATOR

University of Colorado, Denver

Locations

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Children's Hospital Colorado

Aurora, Colorado, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Natalie Nokoff, MD, MSCS

Role: CONTACT

720-777-3607

Facility Contacts

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Natalie Nokoff, MD

Role: primary

720-777-3607

Other Identifiers

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1K23HL151868-01

Identifier Type: NIH

Identifier Source: secondary_id

View Link

19-1226

Identifier Type: -

Identifier Source: org_study_id

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