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Enrolling by Invitation

NCT Number: NCT05863923

Tobacco Cessation Texting Intervention for People Living With HIV Who Smoke in Vietnam

The intersection of smoking and HIV/AIDS poses a serious public health threat in Vietnam. Vietnam is dealing with these two challenges with parallel rather than integrated plans. Using a computer-tailored texting intervention, study investigators seek to promote the use of an underused, available, government-funded resource (the Quitline) and Nicotine Replacement Therapy (NRT) that the quitline provides, thus, promoting cessation among PLWH.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

UMass Chan Medical School, Worcester, Massachusetts, United States

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About this study

M2Q2-HIV [mHealth Messaging to Motivate Quitline Use and Quitting among Persons Living with HIV (PLWH) in Vietnam (M2Q2-HIV)] is an adaptation of a current computer-tailored smoking cessation intervention in Vietnam. Study investigators seek to promote underused government resources for public health (the Quitline) and Nicotine Replacement Therapy (NRT) among PLWH in a sustainable manner.

Investigators will test M2Q2-HIV by conducting a randomized control trial with 600 PLWH smokers in two provinces in Northern Vietnam (26 clinics; 9,877 HIV patients).

In Aim 1, study investigators will conduct formative work to prepare the M2Q2-HIV system for PLWH smokers.

In Aim 2, the study team will randomize and follow smokers for six months. The study's effectiveness hypothesis will evaluate carbon monoxide (CO) verified, six-month, seven-day point prevalence cessation. Process hypotheses will evaluate self-efficacy, Quitline, and NRT use and test our hypothesized model that specific measured processes will partially mediate observed intervention effectiveness.

Using qualitative interviews with key stakeholders and PLWH smokers, Aim 3 will support nationwide M2Q2-HIV dissemination assessing acceptability and contextual factors guided by the Practical, Robust Implementation and Sustainability Model (PRISM).

This project builds upon a long-standing, successful collaboration between institutions in Vietnam (Ministry of Health, Bach Mai Quitline, Institute of Population Health and Development, Hanoi Medical University) and UMass Chan Medical School. The study team has expertise in smoking cessation, HIV intervention, including stigma related to concomitant substance use, and implementation of complex interventions. If proven effective, the Vietnam Ministry of Health is committed to incorporating M2Q2-HIV as a permanent part of the national infrastructure.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Diagnosed HIV infection (prevalent and incident HIV).
  • At least 18 years old.
  • Current smoker.
  • Be able to receive texts and read text (literate).

Exclusion criteria

  • Pregnant or planning to become pregnant during the next six months.
  • Unable or unwilling to provide informed consent.
  • Prior diagnosis of serious mental health illness.
  • Smoker who helped develop the motivational texts used in the intervention (participated in Aim 1).
  • Family member of another participant in the study.

Treatment and study plan

mHealth Messaging to Motivate Quitline use and Quitting among Persons Living With HIV (PLWH) in Vietnam (M2Q2-HIV)

Behavioral

Participants in the intervention group will be exposed to the texting intervention through a series of culturally tailored assessments and motivational text messages from the text messaging system sent throughout the 6 months of duration of the study.

M2Q2-HIV Comparison

Behavioral

Participants in the comparison group will be exposed to a brief set of five texts with facts about smoking risks and assessment messages that are not culturally tailored from the text messaging system.

Primary outcomes

  1. Smoking Cessation Rate

    Time frame: At 6 months post-randomization

    At six months, we will assess 7-day point prevalence cessation, based on the following question: "Do you currently smoke tobacco (smoked even 1 puff in the last 7 days)?" The Society of Nicotine and Tobacco Research has recommended this measure.

Secondary outcomes

  1. Self-Efficacy

    Time frame: 0-month (baseline) and 6-months post-randomization

    Self-Efficacy, as measured by the Smoking Self-Efficacy Questionnaire (SEQ-12) questionnaire. The score for each question ranges on a 4-point Likert scale from 0-3. SEQ-12 score ranges from 0-36, with higher values indicating higher self-efficacy for smoking cessation. The aggregate score will only be computed if no more than 2 out of the 12 questionnaire items had missing or 'not applicable' responses.

  2. HIV-Related Stigma

    Time frame: 0-month (baseline) and 6-months post-randomization

    HIV-related stigma, measured using a survey assessing five indicators of HIV/AIDS-related stigma according to USAID: (1) blame, judgment; (2) shame; (3) enacted stigma/discrimination; (4) disclosure; and (5) fear of casual transmission and refusal of contact. Survey response options include (1) Yes, (2) No, and (3) No answer. A response of "yes" to one or more survey questions will indicate the presence of HIV-related stigma.

  3. Quitline Use

    Time frame: 6-months post-randomization

    The quitline staff will record details of intake assessment (time on call, readiness to quit, quit date, and goal-setting) and fidelity of follow-up call completion.

  4. NRT Use

    Time frame: 6-months post-randomization

    The quitline staff will document the distribution of NRT lozenge and smoker use of NRT during follow-up.

Sponsors and collaborators

Lead sponsor

University of Massachusetts, Worcester

Other

Collaborators

  • Institute of Population, Health and Development, Vietnam
  • National Cancer Institute (NCI)

Registry information

Official study title

mHealth Messaging to Motivate Quitline Use and Quitting Among Persons Living With HIV (PLWH) in Vietnam (M2Q2-HIV)

Acronym: M2Q2-HIV

Important dates

Study start
2023
Primary completion
2027
Study completion
2027
First posted
May 18, 2023
Registry last updated
Jun 29, 2026

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

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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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