Comparison of PKs of 17-Beta-Estradiol Via Sublingual Placement Versus Swallowing in Male-to-Female Transgender Patients

NCT ID: NCT05428215

Last Updated: 2023-07-27

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

TERMINATED

Clinical Phase

PHASE4

Total Enrollment

2 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-12-29

Study Completion Date

2023-07-20

Brief Summary

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This crossover study will investigate the pharmacokinetics of oral versus sublingual administration of 17-beta-estradiol in the trans-female population.

Detailed Description

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Conditions

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Gender Dysphoria

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Each subject will take their individualized dose of 17B-estradiol tablet orally for 2 weeks and sublingually for 2 weeks. The subject will then take their same dose of 17B-estradiol via the other means of administration for 2 weeks. The order in which this occurs will be randomized.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Caregivers Investigators Outcome Assessors

Study Groups

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PO then SL

Subjects will administer 17-beta-estradiol orally (PO) for Study Day 1-14, followed by administration of 17-beta-estradiol sublingually (SL) for Study Day 15-28.

Group Type ACTIVE_COMPARATOR

17beta Estradiol

Intervention Type DRUG

Subjects will take individualized therapeutic dose of 17-beta-estradiol via sublingual and oral administration

SL then PO

Subjects will administer 17-beta-estradiol sublingually (SL) for Study Day 1-14, followed by administration of 17-beta-estradiol orally (PO) for Study Day 15-28.

Group Type ACTIVE_COMPARATOR

17beta Estradiol

Intervention Type DRUG

Subjects will take individualized therapeutic dose of 17-beta-estradiol via sublingual and oral administration

Interventions

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17beta Estradiol

Subjects will take individualized therapeutic dose of 17-beta-estradiol via sublingual and oral administration

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* English speaker
* Currently taking 17-beta-estradiol tablet daily via sublingual or oral route on dose therapeutic for gender-affirming therapy; steady dose for at least 4 weeks
* Serum estradiol and testosterone levels within target therapeutic range (75-200 pg/mL and \<55 ng/dL, respectively)

Exclusion Criteria

* Active or history of deep venous thrombosis/pulmonary embolism
* Active or recent (within the past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction)
* Liver dysfunction
* History of breast cancer
* History of orchiectomy
* Known sensitivity or allergy to any components of the study medication
* Taking potent CYP3A4 inhibitors or inducers
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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MaineHealth

OTHER

Sponsor Role lead

Responsible Party

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Katherine Davis

Physician- MH Obstetrics and Gynecology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Katherine Davis, MD

Role: PRINCIPAL_INVESTIGATOR

MaineHealth

Locations

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Maine Medical Center

Portland, Maine, United States

Site Status

Countries

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United States

Other Identifiers

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1737257

Identifier Type: -

Identifier Source: org_study_id

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