Scientists probe Gut-Hormone link in Women's aging
NCT ID NCT07614542
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
The AGEWISE study is observing 300 healthy women aged 40 to 64 in Portugal to understand how gut bacteria change with hormones during menopause. Participants provide stool and blood samples and answer health and diet questionnaires. Researchers hope to uncover connections between the gut microbiome, hormone levels, and inflammation to improve future prevention strategies for women's aging.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could point toward new prevention strategies for age-related health issues in women by linking gut health to hormonal changes.
- What could go wrong
- This is an observational study, so it cannot prove cause and effect. Results may not apply to women outside Portugal or those with health conditions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 300 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2025
- Expected to finish
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Dec 2036
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
Participants are recruited using non-random, voluntary recruitment strategies. Eligible women are identified through open public calls, institutional outreach activities, existing biobank donor databases, and re-contact of participants from related research projects who have previously agreed to be contacted for future studies. Enrollment is based on predefined eligibility criteria and the individual's willingness to participate. All potential participants who meet the eligibility criteria receive detailed information about the study from the research team, and those who agree to take part are required to provide written informed consent prior to participation.
- Ages
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40 to 64 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Female sex * Aged 40 to 64 years * Resident in mainland Portugal or the islands * Able and willing to provide written informed consent * Willing to provide stool and blood samples and complete three questionnaires Exclusion Criteria: * Age below 40 years or 65 years and older * Inability to give informed consent * Refusal to provide stool or blood samples or complete questionnaires * Pregnancy * Diagnosed gastrointestinal disorders (including inflammatory bowel disease, Crohn's disease, ulcerative colitis, irritable bowel syndrome, chronic diarrhoea of unknown cause, or recurrent Clostridioides difficile infection) * Active oncological disease
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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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Gulbenkian Institute for Molecular Medicine, Lisbon
RECRUITINGLisbon, Portugal
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can Omega-3s keep menopausal minds sharp?
- Can one workout change your gut bacteria?
- Does hormone therapy for menopause leave a mark on breasts and arteries?
- A phone game takes on menopause brain fog