Can hormone therapy change your lungs? new study investigates
NCT ID NCT05587751
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether gender-affirming hormone therapy changes how the lungs work in transgender and gender diverse people. Researchers will measure lung volumes and airflow over time in about 44 participants. The goal is to understand if lung function aligns more with a person's gender identity than with the sex they were assigned at birth.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 44 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2023
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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14 years and older
- Sex
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Anyone
- Healthy volunteers
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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: * Subjects speaking any language will be offered participation. * Subjects capable of providing informed consent to the study. For those subjects younger than 18 years old who agree to participate in the study, informed consent will be obtained from patient's parents/guardian. * Subjects capable of performing pulmonary function test (PFT) maneuvers, as per pulmonary function test laboratory protocol. * Patients will be enrolled through the Mayo Clinic Rochester Transgender and Intersex * Specialty Care Clinic (TISCC), once patient has decided to undergo hormonal gender-affirming therapies (pubertal blockers, and masculinizing or feminizing hormone therapies). Exclusion Criteria: * Subjects unable to provide consent, or subjects who do not agree to discuss the study with their parents/guardians. * The presence of contraindications for pulmonary function testing including (these will be reviewed at the time of recruitment and prior to each spirometry associated with the study): * Recent surgical procedures (\<3 months) that could be affected by lung function testing, including the following categories: Abdominal surgery, Eye surgery, Thoracic surgery, Ear surgery, Brain surgery, Vascular surgery. * The presence of previously known respiratory disorders including pulmonary embolism (\<6 months), pleural effusion, pneumothorax, hemoptysis. * Recent myocardial infarction (\<1 month), new cardiac arrythmia (\<3 months), recent cardiac pacemaker implantation (\<3 months). * Heart failure symptoms, significant shortness of breath, tachycardia, or angina * The presence of chronic pulmonary diseases that maybe associated with changes in pulmonary function overtime such as asthma, chronic obstructive pulmonary disease, or interstitial lung diseases.
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Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Mayo Clinic Rochester
RECRUITINGRochester, Minnesota, 55905, United States