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New wearable sleeve aims to zap period pain without pills

NCT ID NCT07176780

Symptom relief Sponsor: University of California, Davis 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a wearable sleeve with semiconductors that claim to boost blood flow and reduce pain. One hundred women with painful periods will wear either the active sleeve or a placebo version. The goal is to see if the sleeve can ease cramping and improve quality of life without drugs.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
semiconductor embedded body sleeve
What this could lead to
If it works, this could offer a drug-free option for managing menstrual cramp pain.
What could go wrong
This is an early-stage trial with only 100 people. The placebo effect is strong for pain, and the device may not work better than a plain sleeve.

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 100 people

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

Expected to start

Dec 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

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 45 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Self-reported primary dysmenorrhea during past three menstrual cycles * Age 18-45 inclusive at the time of consent * Self-reported typical primary dysmenorrhea symptom pain greater than 4 on a 1-10 visual analog scale (VAS) * History of regular menstrual cycles with a usual length of 21 to 35 days * Willing and able to provide informed consent and adhere to study requirements Exclusion Criteria: * History of neurological conditions, including multiple sclerosis or Parkinson's disease * Secondary dysmenorrhea including confirmed or suspected endometriosis or fibroids or intrauterine device * Self-reported size not available in study device * Pregnant or planning to become pregnant during the study * Have within the past six months of enrollment, or are planning to in the next six months, start or discontinue any of the following contraceptive methods: 1. intrauterine device 2. oral contraceptives, 3. contraceptive patch, 4. implant (Nexplanon), 5. shot (Depo-Provera), 6. vaginal ring * Chronic pain conditions unrelated to primary dysmenorrhea * Auto-immune or auto-inflammatory diseases * Has used within the last 90 days or is planning to use nicotine-containing products * History of metabolic disorders * Active infection (local or systemic) that, in the opinion of the investigator, would prevent usage of the device * In the opinion of the investigator, any other criteria or condition that could increase the risk associated with study participation or study treatment or could interfere with the interpretation of study results * Have taken any investigational drug or used any investigational device within the 30 days prior to consent.

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Conditions

The condition(s) this trial relates to.

dysmenorrhea primary dysmenorrhea

As listed by the trial registrant

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

Menstrual cramps Primary dysmenorrhea Primary dysmenorrhea (PD) Women'S health

How to take part

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  1. 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 ↗

  2. 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.

More trials for these conditions

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