- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT01023659
Distribution of Bupropion and Varenicline to Increase Smoking Cessation Attempts
An Innovative Approach to Maximizing the Impact of Efficacious Pharmacotherapies on Smoking Cessation Attempts.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Bupropion and varenicline are effective pharmacotherapies for smoking cessation, but their population level impact is limited by a combination of factors. Both bupropion and varenicline are only available through prescription, however smoking cessation clinics are few in number and only about 25% of smokers receive information on smoking cessation aids from their healthcare provider. Mass distribution approaches, bypassing clinics and physicians, have been successful for nicotine replacement therapy in many jurisdictions, including Ontario. However, bupropion and varenicline have the potential to make a greater impact given their superior results from the clinical trials. Bupropion and varenicline present a unique challenge as they are prescribed medications, therefore we have proposed a variant of the mass distribution method to test whether it is practical to distribute them to a large number of people over a expansive geographic area (i.e., Ontario).
We hypothesize that engaging smokers with the opportunity to receive free bupropion or varenicline, to initiate an appointment with their physician to obtain a prescription that would be filled and mailed to the smoker from a central pharmacy would be a logistically feasible approach to reach high number of smokers from a wide geographic area. Our second hypothesis is that consistent with the results from clinical studies, in the general population varenicline would be associated with a higher abstinence rate than bupropion, and both varenicline and bupropion groups would achieve higher abstinence rates than those making quit attempts without any pharmacotherapy aid.
This is an open label, proof-of-concept study, wherein 2000 eligible participants will have the opportunity to receive bupropion (Zyban®) or varenicline (Champix®) for 12 weeks in conjunction with weekly motivational emails. Eligible participants will discuss with their doctor which of the two medications is appropriate for them to use as smoking cessation aid. It is also possible that the participant and his/her doctor may decide not to pursue smoking cessation using either of these medications. These participants will form a third intervention group, receiving only the weekly motivational emails. All participants will set a quit date of their choosing, but those receiving medication will set a quit date 7 days after starting the medication. The participants will enroll in the study via the study's website, at which time they will read the consent form, answer the eligibility questions and complete the baseline questionnaire. Data related to the outcome measures and adverse events will be collected at 4, 8 and 12 weeks after the start of treatment and at 6 and 12 months after the end of treatment.
Type d'étude
Inscription (Réel)
Phase
- Phase 4
Contacts et emplacements
Lieux d'étude
-
-
Ontario
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Toronto, Ontario, Canada, M5T 1P7
- Centre for Addiction and Mental Health
-
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- male or female, at least 18 years of age, resident of Ontario, smoke at least 10 cigarettes per day, had smoked daily for at least the past 3 months, had smoked at least 100 cigarettes in their lifetime and intended to quit smoking in the next 30 days.
Exclusion Criteria:
- history of brain injury or seizure(s); pregnancy, lactation or risk of becoming pregnant; allergy or sensitivity to bupropion or varenicline; current use of monoamine oxidase inhibitors (MAOIs), thioridazine, varenicline or buproprion; severe liver impairment; or history of anorexia and /or bulimina.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
---|---|
Comparateur actif: Bupropion + motivational emails
participants receive Zyban (300mg/day) plus weekly motivational emails for 12 weeks.
|
bupropion, 150 mg twice daily plus weekly motivational emails for 12 weeks
Autres noms:
brief motivational emails, sent weekly for 12 weeks
|
Comparateur actif: Varenicline + motivational emails
participants receive Champix (2mg/day) plus weekly motivational emails for 12 weeks.
|
brief motivational emails, sent weekly for 12 weeks
varenicline, 1 mg twice daily plus weekly motivational emails for 12 weeks
Autres noms:
|
Comparateur actif: Motivational emails
participants receive weekly motivational emails for 12 weeks.
|
brief motivational emails, sent weekly for 12 weeks
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
7-day Point Prevalence of Abstinence
Délai: 6-month
|
7-day point prevalence of abstinence was assessed by the question "Have you had a cigarette, even a puff, in the past 7 days?"
|
6-month
|
Proportion of Eligible Participants Who Were Able to Attend an Appointment With a Physician
Délai: End of Treatment
|
Proportion of eligible participants who were able to attend an appointment with a physician to have the prescription signed
|
End of Treatment
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Les troubles mentaux
- Troubles induits chimiquement
- Troubles liés à une substance
- Trouble lié à l'usage du tabac
- Effets physiologiques des médicaments
- Agents neurotransmetteurs
- Mécanismes moléculaires de l'action pharmacologique
- Agents cholinergiques
- Inhibiteurs d'enzymes
- Médicaments psychotropes
- Inhibiteurs de l'absorption des neurotransmetteurs
- Modulateurs de transport membranaire
- Agents antidépresseurs
- Agents dopaminergiques
- Inhibiteurs des enzymes du cytochrome P-450
- Agonistes nicotiniques
- Agonistes cholinergiques
- Agents antidépresseurs, deuxième génération
- Inhibiteurs du cytochrome P-450 CYP2D6
- Inhibiteurs de l'absorption de la dopamine
- Bupropion
- Varénicline
Autres numéros d'identification d'étude
- 068/2009
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .
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