Clinical trial Recruiting at 1 site Observational Ages 18 and up

Investigating the risks of anabolic steroid use in fitness communities in Denmark

Official title: Prospective, Longitudinal Study of 800 Recreational Athletes With Current and Former Use of Performance and Image Enhancing Drugs (PIED), Focusing on Androgenic Anabolic Steroids (AAS) - Rigshospitalet

Run by Copenhagen University Hospital, Rigshospitalet · NCT05599438 · Data updated 2026-11-12

This study looks at the long-term health risks of using anabolic steroids among recreational athletes in Denmark to see how it affects their heart, diabetes, reproductive health, and mental well-being.

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Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment900 (estimated)
SponsorCopenhagen University Hospital, Rigshospitalet
Academic / other
Locations1 site (Copenhagen)
StatusRecruiting
StartedJune 14, 2022
Main results expectedJune 1, 2025
Study endsJune 1, 2040
Registry record updatedFebruary 15, 2024
Trial IDNCT05599438 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include male and female recreational athletes aged 18 and older who have used anabolic steroids illicitly for at least four weeks.

Probably not a fit

Patients with severe psychiatric or somatic diseases that prevent informed consent or compliance, as well as pregnant individuals, 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 explore the long-term health risks associated with anabolic steroid use among recreational athletes in Denmark. It will assess complications related to cardiovascular disease, diabetes, reproductive health, and psychological well-being through a combination of medical interviews, physical examinations, questionnaires, and biological sampling. The study seeks to characterize both male and female users of anabolic steroids and understand the broader implications of their use, including potential therapeutic needs. By utilizing data from Danish registries, the research will provide insights into the health outcomes of individuals involved in fitness doping.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of health risks associated with anabolic steroid use, ultimately guiding better therapeutic interventions.

How similar studies have gone: While there is limited research specifically on fitness doping in Denmark, similar studies on anabolic steroid use have shown significant health risks and complications, indicating a need for further investigation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- Male and female recreational athletes (≥18 years of age) with current or former illicit use (\>3 months since AAS cessation) of PIEDs (e.g. AAS) for a minimum four weeks

Inclusion Criteria (Controls, n = 100):

\- Male (n=80) or female (n=20) recreational athletes (≥18 years of age) with NO current or former illicit use of AAS.

Exclusion Criteria:

* Severe psychiatric or somatic diseases which makes it impossible to give informed consent or comply with the investigatory program.
* Known pregnancy.

Where it's running

  • Rigshospitalet
    Copenhagen, Denmark
    Recruiting

Study contacts

  • Principal investigator: Caroline M Kistorp, Professor — Centre for Cancer and Organ Disease, Department for Medical Endocrinology, Rigshospitalet
  • Study coordinator: Caroline M Kistorp, Professor
  • Email: caroline.michaela.kistorp@regionh.dk
  • Phone: 004535459642

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.