Estrogen's secret Muscle-Boosting power revealed in new study
NCT ID NCT07617454
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether taking estrogen helps post-menopausal women gain more muscle from exercise. Thirty women who are 1-10 years past their last period will take either estrogen or a placebo and do 12 weeks of strength training. Researchers will measure muscle mass and function to understand how estrogen affects muscle health.
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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 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Aug 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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40 years and older
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 1-10 years since last menstrual bleeding * Age \> 40 years old * BMI 20-30 Exclusion Criteria: * Follicular stimulating hormone \< 30 mmol/L * Systematic strength training during the last year (\> 1 strength training session per week) * Injuries to the legs which may prevent participation in the physical training program * Magnetizable metals or electrical devices implanted in the body, such as a pacemaker * Use of medication that can influence the effect of immobilization and/or training * Muscular or joint disorders which may affect the results * Metabolic diseases (such as diabetes and cardiovascular diseases) * Previous or present liver or cancer disease * Current or previous thrombosis * Porphyria * Epilepsia * Systemic autoimmune disease * Edema * Smoking or use of other nicotine containing products * Claustrophobia * Addictive behavior, defined as abuse of cannabis, opioids, or other intoxicating substances. * Lack of ability to cooperate * Blood parameters out of normal range at the health check * Blood pressure above 140/90 mmHg
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Conditions
The condition(s) this trial relates to.
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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Aarhus University
RECRUITINGAarhus, Jutland, 8000, Denmark
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