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Can a smart tampon predict your fertile days better than pee sticks?

NCT ID NCT06862440

Knowledge-focused Sponsor: Lady Technologies Inc 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 Sep 16, 2026 · Updated 2 times

Summary

This study compares a new at-home vaginal device (Kegg) that measures electrical changes in cervical mucus to standard methods like urine hormone strips and mucus checks. About 500 women aged 18-40 will use the device for three menstrual cycles. The goal is to see if the device can accurately identify the fertile window and ovulation day, offering a more convenient option for fertility tracking.

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

189 people

The number who actually took part.

Started

Jan 2025

Finished

Sep 2026

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Women who meet the eligibility criteria

Ages

18 to 40 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: 1. Biological female 2. Age between 18-40 years old 3. Participant has provided signed informed consent 4. Completed cervical mucus observation training 5. Owns and uses daily a smart device meeting the following requirement: Apple iPad or iPhone running iOS 13 or newer, or Apple Watch running WatchOS 6.0 or newer, or Android operating system of 6.0 or newer 6. Has readily accessible internet 7. Legal residents of the continental United States, excluding Alaska and Hawaii. Exclusion Criteria: 1. Participant is unable to read and understand English 2. Postmenopausal women 3. Women with hysterectomy 4. Pregnancy 5. Hormonal or intrauterine contraceptives or other hormone use prior to start of study enrollment \[No oral hormonal contraceptives or other hormones for at least one month, no implantable contraceptives or hormonal or non-hormonal intrauterine device for at least two months (\~2 cycles), no injectable hormonal contraceptives or other hormones in past 9 months from the most recent injection and resumption of regular menstrual cycles

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Conditions

The condition(s) this trial relates to.

infertility disorder

As listed by the trial registrant

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

Fertility

Contacts and locations

Locations

  • Lady Technologies Inc

    San Francisco, California, 94107, United States

More trials for these conditions

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