Testosterone levels linked to brain health in new genetic analysis
NCT ID NCT04743466
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether having naturally low testosterone levels increases the risk of dementia, depression, or anxiety. Researchers will analyze genetic data from large biobanks (like UK Biobank) to see if certain genes linked to low testosterone are also linked to these mental health conditions. No treatments or medications are given—this is purely an observational study using existing data.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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1 person
The number who actually took part.
- Started
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Feb 2020
- Expected to finish
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Nov 2028
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.
Who is studied
Individuals have volunteered to participate in institutional or national biobanks
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Have volunteered to participate in institutional or national biobanks, mainly the UK Biobank and the Kaiser Permanente Research Bank, and those that have previously participated in studies that resulted in de-identified clinical and genetic data being make available on public archives, mainly the database of Genotypes and Phenotypes (dbGaP) * No special populations (adults unable to consent, individuals not yet adults, pregnant women, or prisoners)
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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.
Contacts and locations
Locations
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M D Anderson Cancer Center
Houston, Texas, 77030, United States
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Other studies related to the condition(s) this trial covers.
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