Investigation of Cigarette Cravings in Smokers
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.
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
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.
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Quebec
-
Montreal, Quebec, Canadá, H3A 1A1
- McGill University
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-
Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
|
Experimental: Stress task and smoking cue
Exposure to a psychosocial stress task followed by smoking video cues
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Exposure to a psychosocial stressor
Exposure to a smoking-related task
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|
Experimental: Stress task and neutral cue
Exposure to a psychosocial stress task followed by neutral video cues
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Exposure to a psychosocial stressor
Exposure to neutral cues
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Comparador activo: Control task and smoking cue
Exposure to a control task followed by smoking video cues
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Exposure to a smoking-related task
Exposure to a control task (no stress)
|
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Comparador activo: Control task and neutral cue
Exposure to a control task followed by neutral video cues
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Exposure to neutral cues
Exposure to a control task (no stress)
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in cigarettes smoked per day from the pre-intervention baseline to test sessions 2 and 3 given two and six weeks post-intervention
Periodo de tiempo: 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).
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A journal is given to participants to record their cigarette use behaviour every day for a month and a half
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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).
|
Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in smoking cue-induced cigarette cravings from the pre-intervention baseline to test session 2
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: Multiple time points at baseline (before the pandemic), at the start of the pandemic, and during the pandemic
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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
Periodo de tiempo: 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
Periodo de tiempo: 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
|
Otras medidas de resultado
Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in stress- and/or cue-induced mood during the intervention and at test sessions 1, 2 and 3
Periodo de tiempo: 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
Periodo de tiempo: 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)
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Marco Leyton, PhD, McGill University
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Anticipado)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- 421-0318
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Marco de tiempo para compartir IPD
Criterios de acceso compartido de IPD
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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