Clinical trial Recruiting at 1 site Observational Ages 18 to 99

Effects of hormone treatment on heart and liver health in transgender individuals

Official title: Effects of Cross-sex Hormone Treatment on Cardiac Function, Myocardial and Hepatic Fat Content, Its (Anti)-Atherogenic Implications and Effects on the Insulin System: a Pilot Study

Run by Medical University of Vienna · NCT06245681 · Data updated 2026-11-12

This study tests how hormone treatment affects heart and liver health in transgender individuals by looking at changes before and after six months of therapy.

More Gender Dysphoria trials

Quick facts

Study typeObservational
Ages18 Years to 99 Years
SexAll
Enrollment40 (estimated)
SponsorMedical University of Vienna
Academic / other
Locations1 site (Vienna, State of Vienna)
StatusRecruiting
StartedOctober 20, 2017
Main results expectedOctober 20, 2027
Study endsOctober 20, 2028
Registry record updatedOctober 3, 2025
Trial IDNCT06245681 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are transgender individuals aged 18 and older who are diagnosed with Gender Identity Disorder and are about to begin hormone therapy.

Probably not a fit

Patients with severe neurological or internal diseases, those under 18 years old, or individuals currently on steroid hormone treatment may not benefit from this study.

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

What this trial studies

This observational study aims to investigate the impact of cross-sex hormone therapy on cardiovascular function and fat content in the liver and heart among transgender individuals. Participants will undergo two MRI scans, one before starting hormone treatment and another after six months of therapy, to assess changes in their cardiovascular health. Additionally, an oral glucose tolerance test will be conducted at both time points to evaluate metabolic changes. The study seeks to clarify the gender-specific cardiovascular changes associated with high-dose hormone therapy in male-to-female and female-to-male transgender individuals.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the cardiovascular risks associated with hormone therapy, leading to improved health management for transgender patients.

How similar studies have gone: While there is existing literature on the effects of sex hormones on cardiovascular health, this specific approach focusing on transgender individuals undergoing hormone therapy is relatively novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* DSM-IV diagnosis of Gender Identity Disorder
* age over 18 years

Exclusion Criteria:

* age under 18 years severe neurological or internal diseases

  * steroid hormone treatment within 2 months prior to inclusion (including birth control pill, phytohormones)
  * treatment with psychotropic agents such as SSRIs
  * any implant or stainless-steel graft
  * abnormal values in routine laboratory screening or general physical examination
  * current substance abuse (determined using drug screening at the screening visit)
  * pregnancy (determined at screening visit and first MRI scan)
  * failure to comply with the study protocol or to follow the instructions of the investigating

Where it's running

  • Chiari Stoffwechselambulanz, Medical University of Vienna
    Vienna, State of Vienna, Austria
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.