- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg 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.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
-
-
Ontario
-
Toronto, Ontario, Canada, M5T 1P7
- Centre for Addiction and Mental Health
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Aktiv komparator: 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
Andre navne:
brief motivational emails, sent weekly for 12 weeks
|
Aktiv komparator: 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
Andre navne:
|
Aktiv komparator: Motivational emails
participants receive weekly motivational emails for 12 weeks.
|
brief motivational emails, sent weekly for 12 weeks
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
7-day Point Prevalence of Abstinence
Tidsramme: 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
Tidsramme: 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
|
Samarbejdspartnere og efterforskere
Samarbejdspartnere
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Psykiske lidelser
- Kemisk inducerede lidelser
- Stof-relaterede lidelser
- Tobaksbrugsforstyrrelse
- Lægemidlers fysiologiske virkninger
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Kolinerge midler
- Enzymhæmmere
- Psykotropiske stoffer
- Neurotransmitter optagelseshæmmere
- Membrantransportmodulatorer
- Antidepressive midler
- Dopaminmidler
- Cytokrom P-450 enzymhæmmere
- Nikotiniske agonister
- Kolinerge agonister
- Antidepressive midler, anden generation
- Cytokrom P-450 CYP2D6-hæmmere
- Dopaminoptagelseshæmmere
- Bupropion
- Vareniclin
Andre undersøgelses-id-numre
- 068/2009
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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