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)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Tatiana M Ubay
- Telefonnummer: 206-744-9913
- E-mail: tatiubay@uw.edu
Undersøgelse Kontakt Backup
- Navn: Emily Taylor
- Telefonnummer: 206-744-1873
- E-mail: emt07@uw.edu
Studiesteder
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Washington
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Seattle, Washington, Forenede Stater, 98195
- Rekruttering
- University of Washington - Harborview Medical Center
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Kontakt:
- Susan E Collins, PhD
- Telefonnummer: 206-832-7885
- E-mail: collinss@uw.edu
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Ledende efterforsker:
- Susan E Collins, PhD
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: 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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Aktiv komparator: 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.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Nonsmoking
Tidsramme: 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
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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smoking intensity
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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%
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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smoking craving
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- STUDY00006430
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
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