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Investigation of Cigarette Cravings in Smokers

11. dubna 2021 aktualizováno: Marco Leyton

Investigating Stress-Potentiated Memory Updating as a Novel Intervention for Non-Treatment Seeking Smokers

Interventions to disrupt memory reconsolidation have held promise for the treatment of stress- and anxiety-related disorders. In the present study, the investigators will examine whether an intervention based on these principles, called memory updating, could be adapted for reward-seeking behaviors. To test this, non-treatment seeking tobacco smokers will be exposed to smoking cues and/or stress, two stimuli known to trigger smoking. It is predicted that exposure to a stress task will enhance the cues' motivational salience and yield greater susceptibility to the memory updating procedure.

As an add-on, the investigators will examine COVID-associated changes in substance use and whether participants in the memory updating groups might be more resilient to these effects. It is predicted that the changes in substance use will depend on whether the substances are used primarily in social settings.

Přehled studie

Detailní popis

Non-treatment seeking cigarette dependent smokers will be randomized to one of four testing conditions: 1) a non-stressful task followed by neutral cues, 2) the non-stressful task followed by smoking cues, 3) a stressful task followed by neutral cues, or 4) the stressful task followed by smoking cues. Ten minutes after the intervention, participants will undergo a 60-minute extinction procedure consisting of smoking-related videos, images and smoking paraphernalia. Cue reactivity test sessions will take place 24 hours, 2 weeks and 6 weeks following the intervention.

COVID-associated changes in substance use will be quantified over three telephone interviews: one at the end of March / beginning of April 2020 (at the start of the pandemic), one at the end of April / beginning of May, and a final one which will be instituted if feasible once the infection rates and social distancing policies have decreased.

Typ studie

Intervenční

Zápis (Aktuální)

76

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní místa

    • Quebec
      • Montreal, Quebec, Kanada, H3A 1A1
        • McGill University

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let až 65 let (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  • Scoring 5 or higher on the Fagerström Test for Cigarette Dependence
  • Willingness to abstain from smoking for 4 hours prior to each laboratory visit

Exclusion Criteria:

  • Currently using cigarette cessation products
  • Endocrinological problems
  • Significant mental or physical health conditions
  • Pregnancy

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Singl

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Stress task and smoking cue
Exposure to a psychosocial stress task followed by smoking video cues
Exposure to a psychosocial stressor
Exposure to a smoking-related task
Experimentální: Stress task and neutral cue
Exposure to a psychosocial stress task followed by neutral video cues
Exposure to a psychosocial stressor
Exposure to neutral cues
Aktivní komparátor: Control task and smoking cue
Exposure to a control task followed by smoking video cues
Exposure to a smoking-related task
Exposure to a control task (no stress)
Aktivní komparátor: Control task and neutral cue
Exposure to a control task followed by neutral video cues
Exposure to neutral cues
Exposure to a control task (no stress)

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in cigarettes smoked per day from the pre-intervention baseline to test sessions 2 and 3 given two and six weeks post-intervention
Časové okno: At the end of test session 1 (24 hours post-intervention), participants will receive a journal to record their daily smoking behaviour. They are asked to keep this journal until test session 3 (6 weeks post-intervention).
A journal is given to participants to record their cigarette use behaviour every day for a month and a half
At the end of test session 1 (24 hours post-intervention), participants will receive a journal to record their daily smoking behaviour. They are asked to keep this journal until test session 3 (6 weeks post-intervention).

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in smoking cue-induced cigarette cravings from the pre-intervention baseline to test session 2
Časové okno: Multiple times points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention.
Participants will be asked to complete craving and urge to smoke questionnaires at several time points throughout the study sessions
Multiple times points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention.
Change in smoking cue-induced cigarette cravings from the pre-intervention baseline to test session 3
Časové okno: Multiple times points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention.
Participants will be asked to complete craving and urge to smoke questionnaires at several time points throughout the study sessions
Multiple times points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention.
Change in smoking cue-induced heart rate responses from the pre-intervention baseline to test session 2
Časové okno: Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Participants' heart rate will be measured through the use of a polar belt at several time points during the study sessions
Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Change in smoking cue-induced heart rate responses from the pre-intervention baseline to test session 3
Časové okno: Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Participants' heart rate will be measured through the use of a polar belt at several time points during the study sessions
Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Change in smoking cue-induced skin conductance responses from the pre-intervention baseline to test session 2
Časové okno: Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Participants' skin conductance will be measured through the use of electrodes on their index and middle fingers at several time points during the study sessions
Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Change in smoking cue-induced skin conductance responses from the pre-intervention baseline to test session 3
Časové okno: Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Participants' skin conductance will be measured through the use of electrodes on their index and middle fingers at several time points during the study sessions
Multiple time points during the baseline, intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Change in tobacco and other substance use patterns from the pre-COVID-19 baseline to during COVID-19
Časové okno: Multiple time points at baseline (before the pandemic), at the start of the pandemic, and during the pandemic
Participants will be asked to report the quantity of cigarettes and/or other substances they have consumed recently
Multiple time points at baseline (before the pandemic), at the start of the pandemic, and during the pandemic
Change in tobacco and other substance use patterns from the pre-COVID-19 baseline to post-COVID-19
Časové okno: At baseline (before the pandemic) and through study completion, an average of 1 year
Participants will be asked to report the quantity of cigarettes and/or other substances they have consumed recently
At baseline (before the pandemic) and through study completion, an average of 1 year
Change in tobacco and other substance use patterns during the COVID-19 pandemic to post-COVID-19
Časové okno: Multiple time points during the pandemic and through study completion, an average of 1 year
Participants will be asked to report the quantity of cigarettes and/or other substances they have consumed recently
Multiple time points during the pandemic and through study completion, an average of 1 year

Další výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in stress- and/or cue-induced mood during the intervention and at test sessions 1, 2 and 3
Časové okno: Multiple time points during the intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Participants will be asked to complete a mood questionnaire at several time points during the intervention and at test sessions 1, 2 and 3
Multiple time points during the intervention and test sessions at 24 hours, 2 weeks and 6 weeks post-intervention
Change in cigarette use over the course of the procedure as a function of personality factors, childhood trauma, perceived stress, mood and/or cigarette withdrawal
Časové okno: Multiple time points at baseline, during the intervention, at test sessions (24 hours, 2 weeks and 6 weeks post-intervention) and telephone follow-ups (6 months post-intervention)
Participants will be asked to complete self-report questionnaires about their personality traits, traumatic childhood experiences, perceived stress, current mood states and cigarette withdrawal symptoms
Multiple time points at baseline, during the intervention, at test sessions (24 hours, 2 weeks and 6 weeks post-intervention) and telephone follow-ups (6 months post-intervention)

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Vyšetřovatelé

  • Vrchní vyšetřovatel: Marco Leyton, PhD, McGill University

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

20. února 2018

Primární dokončení (Aktuální)

1. května 2020

Dokončení studie (Očekávaný)

31. ledna 2022

Termíny zápisu do studia

První předloženo

3. dubna 2021

První předloženo, které splnilo kritéria kontroly kvality

11. dubna 2021

První zveřejněno (Aktuální)

14. dubna 2021

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

14. dubna 2021

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

11. dubna 2021

Naposledy ověřeno

1. dubna 2021

Více informací

Termíny související s touto studií

Klíčová slova

Další identifikační čísla studie

  • 421-0318

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

We will share deidentified individual participant data that underlie any results reported in the article. This includes results reported in text, figures and appendices.

Časový rámec sdílení IPD

From 9 to 36 months following article publication.

Kritéria přístupu pro sdílení IPD

Investigators whose proposed use of the data has already been approved by an ethics committee.

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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