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NCT Number: NCT07839026

Greek Connections Study

The purpose of this study is to evaluate the feasibility and acceptability of an intervention aiming to reduce heavy episodic drinking and negative consequences from alcohol by increasing the availability of and engagement in alcohol-free social activities for college students who are affiliated with a fraternity or sorority organization.

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Key information

Age range

18 year–29 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Washington School of Medicine

Seattle, Washington, 98105, United States

Location status: Recruiting

About this study

The negative impact of heavy episodic drinking (HED) among college students continues to be a major public health issue, and students who are members of fraternities and sororities (Greek members) are at particularly greater risk for experiencing negative alcohol consequences due to frequent HED. This study integrates developmental and behavioral economic models of alcohol use to test an environmental approach to reducing alcohol-related harm among Greek members. Within the Greek community, chapters will plan and offer alcohol-free social activities for their chapter members to attend, providing alternatives to drinking events for building social connections. To increase usability and contextual fit, the program of alcohol-free social activities was developed and refined in collaboration with Greek members. The pilot trial is focused on evaluating the feasibility and acceptability of the intervention but will also evaluate changes in heavy episodic drinking and alcohol consequences using a pre-post design, with data collected across two consecutive academic years. Members of participating chapters will provide baseline data during Year 1 and receive the intervention during Year 2.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Active membership in a sorority or fraternity organization at the University of Washington
  • Age 18-29 years

Exclusion criteria

  • None beyond failure to meet the inclusion criteria.

Treatment and study plan

Alcohol-free Social Activities Program

Behavioral

The Alcohol-Free Social Activities Program is a chapter-level behavioral intervention designed to increase the availability of and participation in rewarding social activities that do not involve alcohol among fraternity and sorority members. Participating chapters will receive a program toolkit containing guidance and procedures for planning and implementing alcohol-free social activities. Chapter leaders will select, plan, and implement activities for their members during the intervention period. The program is designed to increase opportunities for rewarding alcohol-free social experiences and strengthen social connection among chapter members.

Primary outcomes

  1. Intervention Feasibility: Recruitment

    Time frame: From initiation of chapter recruitment through the end of Year 1 enrollment, approximately 18 months.

    Number of chapters who agree to participate in the intervention

  2. Intervention Feasibility: Retention

    Time frame: From chapter enrollment through completion of the intervention period, approximately 14 months

    The proportion of participating chapters that remain actively involved in the program through completion of the intervention period.

  3. Intervention Feasibility: Engagement

    Time frame: The intervention delivery period (approximately 4 weeks) during year 2

    Number of Greek members who attend the social activities

  4. Weiner's Acceptability measure

    Time frame: Post-intervention during Year 2

    Measure of acceptability of the intervention

  5. Weiner's Intervention Appropriateness measure

    Time frame: Post-intervention during Year 2

    Measure of appropriateness of the intervention

  6. Weiner's Feasibility measure

    Time frame: Post-intervention during Year 2

    Measure of feasibility of the intervention

  7. Intervention Feasibility: Enjoyment Ratings

    Time frame: During the intervention period in Year 2

    Ratings of enjoyment from Greek members who attend an alcohol-free social activity

Secondary outcomes

  1. Heavy episodic drinking episodes

    Time frame: Assessment periods over two months of Year 1 and Year 2

    Number of heavy episodic drinking episodes derived from the Daily Drinking Questionnaire

  2. Alcohol consequences

    Time frame: Assessment periods over two months of Year 1 and Year 2

    Sum scores on the Brief Young Adult Alcohol Consequences Questionnaire (BYAACQ) which assesses alcohol use consequences. Higher scores indicate worse outcome.

  3. Intervention Feasibility: Practicality

    Time frame: The intervention delivery period (approximately 4 weeks) during year 2

    Time spent planning and facilitating alcohol-free social activities by chapters

Interested in participating?

Recruiting

Interested in participating?

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Sponsors and collaborators

Lead sponsor

University of Washington

Other

Collaborators

  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Registry information

Official study title

Increasing Availability of and Engagement in Alcohol-Free Social Activities to Address Heavy Episodic Drinking and Alcohol Consequences Among Fraternity and Sorority College Students

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
Sep 24, 2026
Registry last updated
Sep 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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