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Can an online class help teens make safer choices?

NCT ID NCT06581536

Prevention Sponsor: ETR Associates 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Aug 20, 2026 · Updated 5 times

Summary

This study tests a fully online program called Yes and Know for teens aged 14-19. The program includes group sessions and digital tools to teach about sexual health, relationships, and life skills. About 1,200 teens will take part, with half receiving the program and half receiving a nutrition class instead. Researchers will survey participants at 3 and 12 months to see if the program reduces unprotected sex and improves knowledge and use of health services.

What this could mean

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

Active substance
Yes and Know curriculum (behavioral intervention)
What this could lead to
If it works, this could provide an effective online program to help teens make safer sexual choices and reduce unplanned pregnancies and STDs.
What could go wrong
This is a relatively early-stage study with 1,200 participants, and results depend on self-reported surveys, which may not be fully accurate. The program may not change behavior as hoped.

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

449 people

The number who actually took part.

Started

Aug 2025

Finished

Jun 2026

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

14 to 19 years

Sex

Anyone

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: * Ages 14-19; and * English speaking. Exclusion Criteria: \- Anyone not meeting inclusion criteria.

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Conditions

The condition(s) this trial relates to.

Adolescent Behavior pregnancy disorder sexually transmitted disease

As listed by the trial registrant

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

Adolescent behavior Pregnancy related Sexually transmitted diseases

Contacts and locations

Locations

  • ETR Associates

    Watsonville, California, 95076, United States

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