Clinical trial Recruiting at 1 site Observational Ages 18 and up

Cardiovascular effects of gender-affirming hormones in adults

Official title: Cardiovascular Health of Transgender Individuals During the Clinical Gender-affirming Pathway

Run by IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT07187947 · Data updated 2026-11-12

This project tests whether masculinizing or feminizing gender-affirming hormone therapy changes heart and blood vessel health in transgender adults who have been on hormones for at least 12 months.

More Cardiovascular (CV) Risk trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment500 (estimated)
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna
Academic / other
Locations1 site (Bologna, BO)
StatusRecruiting
StartedJuly 18, 2025
Main results expectedDecember 31, 2035
Study endsDecember 31, 2035
Registry record updatedSeptember 23, 2025
Trial IDNCT07187947 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with diagnosed gender incongruence who have been receiving continuous masculinizing or feminizing gender-affirming hormone therapy for at least 12 months and who have no history of cardiovascular events are ideal candidates.

Probably not a fit

People with prior cardiovascular events, those not on GAHT or on GAHT for less than 12 months, and minors are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an observational cohort at a tertiary center in Bologna following transgender adults receiving either masculinizing (testosterone) or feminizing (estradiol plus androgen-lowering agents) gender-affirming hormone therapy. Participants are adults with a diagnosis of gender incongruence who have been on continuous hormone therapy for at least 12 months and who have no prior cardiovascular events. The study collects clinical data and cardiovascular risk markers over time to characterize changes in cardiovascular health associated with GAHT. All participation requires informed consent and follow-up visits at the coordinating center.

Why it matters

Potential benefit: If successful, results could clarify hormone-related cardiovascular risks and help clinicians and patients choose safer, more informed hormone regimens.

How similar studies have gone: Previous observational studies have reported mixed findings, showing some changes in lipids, blood pressure, and thrombotic risk with GAHT while randomized evidence remains limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of gender incongruence
* Age 18 years or older at the start of therapy
* Undergoing gender-affirming (replacement or suppressive) hormone therapy with testosterone or with estradiol plus anti-androgens for at least 12 months
* Provision of informed consent for study participation and for the processing of personal and sensitive data

Exclusion Criteria:

* Any hormone therapy received before recruitment
* History of cardiovascular events prior to the initiation of hormone therapy

Where it's running

  • IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico di Sant'Orsola
    Bologna, Bo, Italy
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.