Investigating how testosterone affects muscle growth and memory

Long-term Effects of Anabolic Androgenic Steroids on Muscle Growth Potential: Testosterone-induced Muscle Memory and Underlying Mechanisms

Not applicable Interventional University of Copenhagen · NCT06188767

This study tests how testosterone affects muscle growth and memory in healthy people who are doing resistance training.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 40 Years
SexMale
SponsorUniversity of Copenhagen Academic / other
Locations1 site (Copenhagen)
Trial IDNCT06188767 on ClinicalTrials.gov

What this trial studies

This project aims to explore the mechanisms behind muscle hypertrophy and muscle memory induced by testosterone and resistance training in healthy individuals. Participants will receive testosterone undecanoate while their muscle physiology is monitored. The study will focus on understanding how testosterone influences muscle adaptation and retention of strength over time. By examining these effects, the research seeks to provide insights into optimizing muscle health and performance.

Who should consider this trial

Good fit: Ideal candidates are healthy men and women with a BMI under 26 and normal cardiovascular health.

Not a fit: Patients with chronic diseases, those who smoke, or individuals with a history of musculoskeletal injuries may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved strategies for enhancing muscle growth and recovery in various populations.

How similar studies have performed: While there have been studies on testosterone and muscle physiology, this specific investigation into muscle memory mechanisms is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy men and women
* BMI of \<26 and normal ECG and blood pressure

Exclusion Criteria:

* Smoking
* Chronic disease,
* Use of prescription medication
* Pain due to current or previous musculoskeletal injury
* Resistance training more than once per week in the 12 months leading up to the intervention
* Current or previous use of prohibited anabolic substances

Where this trial is running

Copenhagen

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Skeletal Muscle Physiology
Last reviewed 2026-06-09 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.