School-Led program shows promise in taming girl aggression

NCT ID NCT04164472

Completed Disease control Sponsor: Children's Hospital of Philadelphia Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether teachers and counselors can effectively run the Friend to Friend (F2F) program to reduce aggression in girls. Over 5,000 students from 40 urban schools participated, with some schools using the program and others serving as controls. The program includes small group sessions for relationally aggressive girls and classroom sessions for all students, aiming to improve problem-solving and reduce hostile behaviors.

What this could mean

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

Active substance: Friend to Friend (F2F) behavioral program with coaching
What this could lead to: If successful, this program could provide schools with an effective, staff-led way to reduce aggression and improve social skills in students.
What could go wrong: This is a completed study, but results may not apply to all schools or students. The program requires active coaching from researchers, which may limit real-world use.

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Conditions

The condition(s) this trial relates to.

Aggression

As listed by the trial registrant

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

AGGRESSION

Contacts and locations

Locations

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, 19146, United States

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