- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00865254
Prize Reinforcement for Smoking Cessation
27. juni 2013 oppdatert av: David Ledgerwood, Wayne State University
Nicotine dependence is prevalent in society, cigarette smoking is associated with several known health risks, and most dependent individuals find it very difficult to stop smoking cigarettes.
The present study will test the efficacy of a behavioral smoking cessation treatment, prize-based contingency management, that has not undergone rigorous study with respect to smoking, it but has demonstrated efficacy in reducing use of other substances (e.g.
cocaine).
If efficacious, prize-based contingency management would add to our repertoire of efficacious smoking cessation treatments.
Studieoversikt
Status
Fullført
Forhold
Detaljert beskrivelse
Contingency management (CM) treatments are efficacious in reducing substance use.
A relatively new approach, called prize-based CM, which uses prizes to reinforce substance abstinence, is effective in decreasing certain types of substance use, but its efficacy has not been evaluated in the treatment of cigarette smoking.
One purpose of the current study is to assess the efficacy of a prize reinforcement intervention for reducing cigarette smoking.
A second purpose is to test the differential efficacy of two schedules of reinforcement, using cigarette smoking as an exemplar.
We will randomly assign 110 patients to one of three conditions: 1) Standard treatment; 2) Traditional prize reinforcement; or 3) Early-treatment enhanced prize reinforcement.
Patients in each condition will receive counseling for their smoking based on current standard of care guidelines.
All patients will participate in a one-week baseline period, followed by a four-week intervention.
Throughout both phases, each patient will meet with a research assistant twice daily to provide carbon monoxide (CO) samples.
Patients in the prize reinforcement conditions will earn the chance to win prizes when they provide negative CO samples (i.e., < 6ppm).
They will also earn bonus draws if they provide negative cotinine samples (i.e., <100ng/ml) after weekends.
Patients in the Traditional CM condition will have at least a 50% chance of winning a prize for each negative sample with escalating chances for successive negative samples.
Patients in the Enhanced condition will have the opportunity to earn the same overall number of draws and magnitude of reinforcement, but the schedule of reinforcement will differ.
For the first week of the CM phase, these patients will have a 100% chance of winning prizes, but in the latter 3 weeks, overall probability of reinforcement will be decreased to 34%.
Patients will also undergo 2- and 6-month follow-up assessments.
Primary outcome measures will be longest duration of continuous abstinence and mean number of days of abstinence.
We predict that the prize reinforcement will reduce cigarette smoking to a greater extent than standard treatment.
We also predict that the Enhanced CM condition will lead to greater reductions in cigarette smoking relative to the Traditional CM condition, and that these changes may result in longer sustained abstinence from smoking throughout the study period.
Studietype
Intervensjonell
Registrering (Faktiske)
84
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
-
-
Michigan
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Detroit, Michigan, Forente stater, 48207
- Wayne State University, Jefferson Avenue Research Clinic
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
13 år og eldre (Barn, Voksen, Eldre voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- A current Fagerstrom scale score of 6 or greater;
- Age 13 years old or older (Under age 18, parental consent is required);
- Able to read and understand English.
Exclusion Criteria:
- Have current severe, uncontrolled psychiatric disorders (i.e., acute suicidality or psychosis);
- Have current substance dependence, other than nicotine or caffeine dependence;
- Are in recovery for pathological gambling; or
- Are already participating in other behavioral or medication smoking cessation programs.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
---|---|
Eksperimentell: Traditional Contingency Management
Standard treatment plus prize based contingency management.
|
Prize based contingency management condition in which participants have the chance to win incentives (prizes) when they provide biological test results (expired carbon monoxide and cotinine) that are negative for recent smoking.
Prize draws result in incentives on an intermittent schedule (50% of draws are prizes).
Participants are also provided with brief counseling for smoking cessation followed by continued brief supportive sessions and frequent monitoring of smoking cessation efforts.
|
Eksperimentell: Early Enhanced Contingency Management
Prize based contingency management with enhanced magnitude early in treatment and reduced magnitude later in treatment.
|
Prize based contingency management condition in which participants have the chance to win incentives (prizes) when they provide biological test results (expired carbon monoxide and cotinine) that are negative for recent smoking.
Prize draws result in incentives on an intermittent schedule (100% of draws are prizes in week 1; 33% are prizes in weeks 2-4).
Participants are also provided with brief counseling for smoking cessation followed by continued brief supportive sessions and frequent monitoring of smoking cessation efforts.
|
Aktiv komparator: Standard Treatment
Counseling and monitoring of smoking cessation.
|
Brief counseling for smoking cessation followed by continued brief supportive sessions and frequent monitoring of smoking cessation efforts.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Expired Carbon Monoxide
Tidsramme: Baseline and treatment phases, 2-mont and 6-month follow up.
|
Baseline and treatment phases, 2-mont and 6-month follow up.
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
Self-reported smoking.
Tidsramme: Baseline, throughout treatment, 2-month and 6-month follow up.
|
Baseline, throughout treatment, 2-month and 6-month follow up.
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Cotinine levels.
Tidsramme: Baseline, throughout treatment, 2-month and 6-month follow up.
|
Baseline, throughout treatment, 2-month and 6-month follow up.
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: David M Ledgerwood, Ph.D., Wayne State University
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. august 2007
Primær fullføring (Faktiske)
1. juli 2011
Studiet fullført (Faktiske)
1. juli 2011
Datoer for studieregistrering
Først innsendt
17. mars 2009
Først innsendt som oppfylte QC-kriteriene
17. mars 2009
Først lagt ut (Anslag)
19. mars 2009
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
28. juni 2013
Siste oppdatering sendt inn som oppfylte QC-kriteriene
27. juni 2013
Sist bekreftet
1. juni 2013
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- RDA021839A
- R21DA021839 (U.S. NIH-stipend/kontrakt)
- 1R21DA021839-01 (U.S. NIH-stipend/kontrakt)
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
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