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Shocking period pain away? new trial tests nerve zap for cramps

NCT ID NCT07307222

Symptom relief Sponsor: Cairo University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a device that sends mild electrical pulses to a nerve in the ankle (TTNS) can reduce pain and distress from period cramps. Thirty-six women with primary dysmenorrhea will receive either standard care (heat packs and stretches) or standard care plus TTNS for 12 weeks. Researchers will measure pain intensity, menstrual symptoms, 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.

Active substance
Transcutaneous Tibial Nerve Stimulation (TTNS) device
What this could lead to
If it works, this could offer a drug-free option to reduce menstrual pain and distress.
What could go wrong
This is a small, early-stage trial with only 36 participants, so results may not apply to everyone. The treatment is non-invasive but may not work for all.

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.

Phase

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

About 36 people

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

Expected to start

Dec 2025

An estimate. Start dates often move.

Expected to finish

Mar 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.

Ages

18 to 35 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 with a regular menstrual cycle, experiencing primary dysmenorrhea, confirmed by history and clinical diagnosis. * Females aged between 18 and 35 years. * Their BMI ranging from 20 to 29.9 kg/m². Exclusion Criteria: * Females engaging in regular physical exercises prior to the study course. * A history of abdominal or pelvic surgery. * Pelvic pathologies or diseases (e.g., polycystic ovary syndrome, endometriosis, adenomyomas, or uterine fibroids). * Malignant or benign neoplasms in the uterus. * Chronic diseases, including diabetes and/or rheumatoid arthritis. * Presence of metal implants or pacemakers. * Any contraindications to the use of electrical stimulation (e.g., open wounds, some skin conditions…. etc.).

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Conditions

The condition(s) this trial relates to.

primary dysmenorrhea

As listed by the trial registrant

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

Primary dysmenorrhea

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

  • Damas Central Hospital

    Al Mansurah, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.