NCT06166433

Brief Summary

Tobacco use and secondhand smoke exposure represent critical health disparities in low- and middle-income countries; Armenia and Georgia represent the 11th and 6th highest smoking rates in men globally (51.5% and 55.5%, respectively), but have low rates of smoking in women (1.8% and 7.8%) and few smoke-free homes (38.6%), which can reduce secondhand smoke exposure and tobacco use rates. This study builds on ongoing collaborations between George Washington University, Emory, and national public health organizations in Armenia and Georgia and advancements in local public health infrastructure; it aims to adapt an evidence-based smoke-free home intervention for homes in Armenia and Georgia, develop capacity to deliver the intervention via local community partners and the national quitlines, and test the intervention in a hybrid effectiveness-implementation randomized clinical trial. This work will advance the knowledge base informing strategies to reduce global tobacco-related disparities, as well as the implementation and scale-out of evidence-based interventions in low- and middle-income countries.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
550

participants targeted

Target at P75+ for not_applicable

Timeline
15mo left

Started Feb 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress51%
Feb 2025Jul 2027

First Submitted

Initial submission to the registry

December 1, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 12, 2023

Completed
1.1 years until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2027

Last Updated

March 23, 2026

Status Verified

March 1, 2026

Enrollment Period

2.3 years

First QC Date

December 1, 2023

Last Update Submit

March 19, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Complete smoke-free home rule

    "Which statement best describes the rules about smoking inside your home: smoking is not allowed anywhere inside my home; smoking is allowed in some places or at some times; smoking is allowed anywhere inside my home; or there are no rules about smoking inside my home." Participant indicates no smoking allowed in the home (in any place or at any time).

    Current status; assessed at 6-months post baseline

Secondary Outcomes (11)

  • Secondhand smoke exposure in the home

    Past 7 days; assessed at 6 months post baseline

  • Secondhand smoke exposure in the home

    Past 7 days; assessed at 3 months post baseline

  • Complete smoke-free vehicle rule

    Current status; assessed at 6 months post baseline

  • Complete smoke-free vehicle rule

    Current status; assessed at 3 months post baseline

  • Among Smokers: Cigarette consumption

    Past 7 days; assessed at 6 months post baseline

  • +6 more secondary outcomes

Study Arms (2)

Intervention

EXPERIMENTAL

Theory-based intervention involving 3 mailed sets of educational materials and a brief coaching call using motivational interviewing, delivered over a 6-week period

Behavioral: Smoke-free homes intervention

Control

NO INTERVENTION

Assessment-only control

Interventions

Theory-based intervention involving 3 mailed sets of educational materials and a brief coaching call using motivational interviewing, delivered over a 6-week period.

Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • be greater than or equal to 18 years old
  • smoke in the home and have a child and-or nonsmoker in the home, or be a non-smoker and live with someone who smokes in the home
  • speak Armenian or Georgian
  • live in a selected community

You may not qualify if:

  • N/A

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

George Washington University

Washington D.C., District of Columbia, 20052, United States

RECRUITING

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Participants, investigators, and outcomes assessors will blind to assignment.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Theory-based intervention involving 3 mailed sets of educational materials and a brief coaching call using motivational interviewing, delivered over a 6-week period.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Prevention and Community Health

Study Record Dates

First Submitted

December 1, 2023

First Posted

December 12, 2023

Study Start

February 1, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

July 31, 2027

Last Updated

March 23, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations