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Texts and local mentors: a new way to empower teen girls on contraception?

NCT ID NCT03995043

Prevention Sponsor: Dr. Karen Yeates 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 12, 2026 · Last updated Aug 13, 2026 · Updated 1 time

Summary

This trial tests a program designed to help adolescent girls in Tanzania avoid unplanned pregnancies by improving access to contraception and reproductive health information. Participants receive educational text messages and interactive voice responses on their phones, plus support from trained female mentors in the community. Some girls also get discreet access to contraceptive services through local women-owned businesses. The study will measure changes in unmet contraceptive needs and knowledge over 12 months.

What this could mean

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

Active substance
A mobile platform with educational SMS, interactive voice response, plus community-based peer support and discreet contraceptive access points run by female entrepreneurs.
What this could lead to
If successful, this approach could offer a scalable, culturally tailored way to reduce unplanned pregnancies and improve reproductive health knowledge among adolescent girls in low-resource settings.
What could go wrong
This is a pilot study with a relatively small number of participants, so results may not apply broadly. The intervention depends on phone access and community participation, which could limit its reach or effectiveness.

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 198 people

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

Expected to start

Dec 2027

An estimate. Start dates often move.

Expected to finish

Jun 2029

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

15 to 19 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: * Women 15-19 years of age * Reside within the study area for the duration of the study * Have a personal mobile phone and be willing to provide the phone number to the researchers to receive the intervention messages * Report being SMS literate (ie. able to read text messages in English or Swahili) * Be able and willing to return for follow-up after 12 months * Be able and willing to give written informed consent for enrollment in the study Exclusion Criteria: * Be pregnant or planning pregnancy within 12 months (assessed when obtaining consent using HCG (human chorionic gonadotropin) urine dipstick). * Participation in another study or intervention that may affect the outcome of this study * Already utilizing a long-term form of contraception such as intra-uterine device, or implantable or inject-able contraception * Having a non-medical condition detected through screening that hinders study participation such as developmental or cognitive delay

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Conditions

The condition(s) this trial relates to.

pregnancy disorder Reproductive Behavior

As listed by the trial registrant

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

Contraception Pregnancy related Reproductive behavior

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

  • Queens University

    Kingston, Ontario, K7L 2V7, Canada

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