Project CASA in Promoting Smoke-Free Indoor Air Policy in Mexican American Households

Project CASA: Promoting Smoke-Free Indoor Air Policy in Mexican American Households

This trial studies the effect of an intervention program, Project CASA, on smoking cessation and reducing secondhand smoke exposure in Mexican American households. Project CASA, comprising pamphlets and fotonovelas (illustrated storybooks), may provide valuable information to participants on how to improve the air quality in their homes.

Study Overview

• Status: Completed
• Conditions: Current Smoker; Cigarette Smoker; Currently Living With Smoker
• Intervention / Treatment: Other: Survey Administration; Behavioral: Smoking Cessation Intervention; Other: Informational Intervention

Detailed Description

PRIMARY OBJECTIVES:

I. Reduction in secondhand smoke exposure: The study will distinguish if a tailored intervention designed to address the needs of the target group will reduce objectively and subjectively measured secondhand smoke exposure of nonsmokers in Mexican American (MA) households.

Ia. Develop tailored fotonovelas for intervention implementation. II. Smoking cessation: The study will identify if a tailored intervention designed to address the needs of the target group will help the primary smokers in the household quit smoking.

III. Stages of change: The study will identify if the proposed intervention will have a significant impact on the primary smoker(s) progression through the stages of smoking cessation.

IV. Knowledge and attitudes: The study will identify if the proposed intervention will result in better knowledge and changed attitudes towards secondhand smoke exposure among members of MA households (smokers and nonsmokers) compared to standard care.

V. Perceived health: The study will distinguish whether reduced exposure to secondhand smoke would improve perceived health.

OUTLINE: Participants are assigned to 1 of 2 groups based on smoking status.

GROUP I (SMOKERS): Participants receive smoking cessation intervention materials based on transtheoretical model of change (TTM).

GROUP II (NON-SMOKERS): Participants receive fotonovelas and other materials on secondhand smoking and how to assist the smoker in quitting.

Participants are followed up at 6 and 12 months to assess for home air quality.

• Study Type: Interventional
• Enrollment (Actual): 168
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Texas
    • Houston, Texas, United States, 77030
      • M D Anderson Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Live in the targeted Mexican American neighborhoods.
• Can read Fotonovelas in English and Spanish.
• Access to telephone.
• Smoker in household (adult [18+] person living in the household who smokes INSIDE at least one cigarette a week).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group I (smoking cessation); Participants receive smoking cessation intervention materials based on TTM.	Other: Survey Administration; Ancillary studies; Behavioral: Smoking Cessation Intervention; Receive smoking cessation materials based on TTM; Other Names: Smoking and Tobacco Use Cessation Interventions
Experimental: Group II (informational); Participants receive fotonovelas and other materials on secondhand smoking and how to assist the smoker in quitting.	Other: Survey Administration; Ancillary studies; Other: Informational Intervention; Receive information on secondhand smoke and supporting smoker in quitting

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Level of nicotine measured at 6 month post intervention	Method of analysis is a pre-post test analysis of covariance, ANCOVA, using a linear regression model (PROC REG in SAS). In this analysis, the prevalence of nicotine levels at the 6-month follow-up compared between conditions while controlling for baseline nicotine levels. Second hand smoke (SHS) exposure based on objective monitoring of SHS in each household (in the kitchen and TV room) over a 7-day period. A small, lightweight (16 gram) passive nicotine monitor used to measure exposure to nicotine.	6 months after treatment

Collaborators and Investigators

• Sponsor: M.D. Anderson Cancer Center
• Collaborators: National Cancer Institute (NCI)
• Investigators: Principal Investigator: Alexander V Prokhorov, M.D. Anderson Cancer Center

Publications and helpful links

Helpful Links

• University of Texas MD Anderson Cancer Center Website

Study record dates

Study Major Dates

• Study Start (Actual): August 8, 2006
• Primary Completion (Actual): August 7, 2018
• Study Completion (Actual): August 7, 2018

Study Registration Dates

• First Submitted: February 24, 2009
• First Submitted That Met QC Criteria: February 24, 2009
• First Posted (Estimated): February 25, 2009

Study Record Updates

• Last Update Posted (Actual): September 28, 2023
• Last Update Submitted That Met QC Criteria: September 26, 2023
• Last Verified: June 1, 2022

More Information

Terms related to this study

• Other Study ID Numbers: 2006-0440 (Other Identifier: M D Anderson Cancer Center); P30CA016672 (U.S. NIH Grant/Contract); NCI-2019-02502 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No