Harm Reduction for Tobacco Smoking With Support of Tobacco-Replacing Electronic Nicotine Delivery Systems (HaRTS-TRENDS)
Randomized Controlled Trial of Harm Reduction for Tobacco Smoking With Support of Tobacco-Replacing Electronic Nicotine Delivery Systems (HaRTS-TRENDS)
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Tipo di studio
Iscrizione (Anticipato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Tatiana M Ubay
- Numero di telefono: 206-744-9913
- Email: tatiubay@uw.edu
Backup dei contatti dello studio
- Nome: Emily Taylor
- Numero di telefono: 206-744-1873
- Email: emt07@uw.edu
Luoghi di studio
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Washington
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Seattle, Washington, Stati Uniti, 98195
- Reclutamento
- University of Washington - Harborview Medical Center
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Contatto:
- Susan E Collins, PhD
- Numero di telefono: 206-832-7885
- Email: collinss@uw.edu
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Investigatore principale:
- Susan E Collins, PhD
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Having a history of chronic homelessness according to the widely accepted federal definition,
- Being a current DESC client living in one of DESC's participating permanent supportive housing projects,
- Being between 21-65 years of age,
- Being a daily smoker (>4 cigarettes/day in the past year with a breath CO ≥ 6 ppm or salivary cotinine test at level 1 if CO < 6 ppm)
- Having adequate English language skills to understand verbal information and communicate in the study
Exclusion Criteria:
- Use of other tobacco products besides cigarettes ≥ 9 days in the past month
- Refusal or inability to consent to participation in research
- Constituting a risk to the safety and security of other clients or staff.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Separare
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
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Sperimentale: HaRTS-TRENDS
See description below.
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HaRTS-TRENDS comprises 4, individual sessions delivered in the context of the interventionist's pragmatic harm-reduction mindset paired with a compassionate, advocacy-oriented "heart-set" or style.
It comprises the delivery of 4 manualized components, including a) participant-led tracking of preferred smoking outcomes, b) elicitation of participants' harm-reduction goals and their progress toward achieving them, c) discussion of the relative risks of various nicotine delivery systems, and d) instruction in using ENDS.
Additionally, HaRTS-TRENDS entails provision of commercially available ENDS.
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Comparatore attivo: Standard Care (SC)
See description below.
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The 4-session, individual standard care control condition entails the well-documented and evidence-based 5 As intervention (i.e., Ask about nicotine use, Assess use, Advise to quit smoking, Assist with exploring current smoking/planning smoking cessation, Arrange follow-up).
Part of arranging follow-up is the recommendation to call the smoking quit line, which can supply additional counseling and nicotine replacement therapy.
Altri nomi:
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Nonsmoking
Lasso di tempo: Change across the 12-month follow-up
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Biologically verified nonsmoking (i.e., self-reported nonsmoking if corresponding CO measure is < 8) in the past 7 days will serve as a primary outcome as well as a potential mediator of the HaRTS-TRENDS effect on TSNA concentration.
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Change across the 12-month follow-up
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TSNA Concentration
Lasso di tempo: Change across the 12-month follow-up
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This primary outcome entails urinary concentration of a tobacco-specific nitrosamine (i.e., NNK), a key carcinogen in tobacco.
Secondarily, TSNA concentration will be used as a longer-term biochemical index of tobacco use.
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Change across the 12-month follow-up
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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smoking intensity
Lasso di tempo: Change across the 12-month follow-up
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Self-reported smoking intensity is the mean number of cigarettes participants report smoking per day in the 7 days prior to the assessment.
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Change across the 12-month follow-up
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smoking frequency
Lasso di tempo: Change across the 12-month follow-up
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Self-reported smoking frequency is the number of days participants report smoking in the 7 days prior to the assessment.
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Change across the 12-month follow-up
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CO level
Lasso di tempo: Change across the 12-month follow-up
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Carbon monoxide in exhaled air will be examined secondarily as a continuous measure of reduced smoking-related harm.
It will also be used to biochemically verify the 7-day nonsmoking primary outcome.
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Change across the 12-month follow-up
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cotinine levels
Lasso di tempo: Change across the 12-month follow-up
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Urinary cotinine will reflect participants' recent nicotine use.
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Change across the 12-month follow-up
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FEV1%
Lasso di tempo: Change across the 12-month follow-up
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FEV1% is the ratio of predicted lung capacity based on participants' height, age and gender with participants' forced expiratory volume in the first second of expiration as a percentage of the predicted value.
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Change across the 12-month follow-up
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Clinical COPD questionnaire
Lasso di tempo: Change across the 12-month follow-up
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The 10-item Clinical COPD Questionnaire will be used to calculate an overall summary score representing respiratory HR-QoL over 3 domains: respiratory symptoms (e.g., shortness of breath), functional state (e.g., ability to climb stairs), and mental state (i.e., concern about getting a cold or breathing getting worse).
The total score is calculated by summing the scores of the individual items and dividing by 10 (the number of individual items) giving a total score between 0 and 6 with higher scores representing worse HRQoL.
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Change across the 12-month follow-up
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EQ-5D-5L
Lasso di tempo: Change across the 12-month follow-up
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This self-report measure yields 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.
Additionally, the EuroQoL-Visual Analog Scale (EQ-VAS) is a single item representing health-related quality of life via participants' general assessments of their current health, where 0 = the worst health imaginable and 100 = the best health imaginable.
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Change across the 12-month follow-up
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Altre misure di risultato
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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smoking craving
Lasso di tempo: Change across the 12-month follow-up
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Smoking craving is a potential mediator of the proposed intervention effects and will be measured using the Questionnaire for Smoking Urges-Brief (QSU-B) consists of 10 items rated on 7-point Likert scales ranging from 0 (strongly disagree) to 6 (strongly agree).
Changes in smoking craving summary scores will be tested as a mediator of the HaRTS-TRENDS effects on complete switchover.
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Change across the 12-month follow-up
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side effects of ENDS
Lasso di tempo: Change across the 12-month follow-up
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We will assess participants' experience of known, ENDS-related adverse events (i.e., dry mouth, throat irritation, short-ness of breath, headache, cough, tachycardia, nausea) using a 5-item, 5-point Likert-type questionnaire (ranging from 0=none to 5=severe) that was adapted from the Systematic Assessment for Treatment Emergent Effects (SAFTEE) interview.
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Change across the 12-month follow-up
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Collaboratori e investigatori
Sponsor
Sponsor
Collaboratori
Collaboratori
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Inizio studio (Effettivo)
Inizio studio
Completamento primario (Anticipato)
Completamento primario
Completamento dello studio (Anticipato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
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Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- STUDY00006430
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