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Hidden clues in the menstrual cycle: could they reveal Women's overall health?

NCT ID NCT07699224

Knowledge-focused Sponsor: Universidad Rey Juan Carlos Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 13, 2026 · Last updated Jul 14, 2026 · Updated 1 time

Summary

This study looks at how common menstrual cycle symptoms—like pain, mood changes, and bleeding patterns—relate to physical and mental health in Spanish women aged 18 to 45 who have natural periods. Researchers will use questionnaires and urine ovulation tests to track symptoms and ovulation. The goal is to better understand these often-normalized symptoms and improve women's health and quality of life.

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 research could improve understanding of menstrual health and lead to better symptom management and more inclusive healthcare policies.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, and findings may not apply to women outside Spain.

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

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2026

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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

Naturally menstruating females between 18 and 45 years

Ages

18 to 45 years

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Females * Between 18 and 45 years * Naturally menstruating. Exclusion Criteria: * Pregnant or breastfeeding. * Hormonal contraceptive methods during the 6 months before the study. * hysterectomy or ooforectomy. * Smoking.

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Conditions

The condition(s) this trial relates to.

anovulation dysmenorrhea Metrorrhagia premenstrual tension

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Abnormal uterine bleeding (AUB) Menstrual cycle Menstrual distress (dysmenorrhea) Ovulation disorder Perceived health status Premenstrual syndrome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Universidad Rey Juan Carlos

    RECRUITING

    Madrid, Spain

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