Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

Varenicline or Nicotine Patch and Nicotine Gum in Helping Smokers in a Methadone Treatment Program Stop Smoking

2. Mai 2018 aktualisiert von: Michael Stein, MD, Butler Hospital

Varenicline Versus Nicotine Replacement for Methadone-Maintained Smokers

RATIONALE: Varenicline, the nicotine patch, and nicotine gum help people stop smoking. It is not yet known whether varenicline is more effective than the nicotine patch given together with nicotine gum in helping smokers quit smoking.

PURPOSE: This randomized clinical trial is studying varenicline to see how well it works compared with the nicotine patch given together with nicotine gum in helping smokers in a methadone treatment program stop smoking.

Studienübersicht

Detaillierte Beschreibung

OBJECTIVES:

Primary

  • To determine whether varenicline, a nicotine receptor partial agonist, leads to a higher rate of smoking cessation than combination nicotine replacement therapy with nicotine patch prescription plus ad libitum nicotine gum delivery in methadone-maintained smokers.

Secondary

  • To test the effects of the treatments on smoking urges, withdrawal symptoms, and reinforcing effects of smoking.
  • To test the effects of the treatments on methadone treatment outcomes, including retention in methadone maintenance, methadone dose changes, and continued use of illicit drugs as measured by urine toxicologies.

OUTLINE: This is a multicenter study. Patients are stratified based on gender and level of nicotine dependence. Patients are randomized to 1 of 3 intervention arms.

At baseline, all patients receive a minimal behavioral intervention using a 3-minute, simple smoking cessation counseling strategy, a self-help manual, and a telephone quit-line number.

  • Arm I (varenicline): Patients receive oral varenicline once daily on days 1-3 and twice daily thereafter for a total of 6 months or when a comfortable level of smoking abstinence is reached.
  • Arm II (placebo): Patients receive oral varenicline placebo once daily on days 1-3 and twice daily thereafter for a total of 6 months or when a comfortable level of smoking abstinence is reached.
  • Arm III (nicotine patch/gum): Patients receive a nicotine patch, with doses tapering over time for a total of 26 weeks. Patients also receive nicotine gum to quell breakthrough urges. Patients may stop treatment when a comfortable level of smoking abstinence is reached.

Patients complete a brief interview over 10-15 minutes at 2 weeks and monthly during months 1-5. They complete a longer interview over 45 minutes at months 6 and 12 and provide breath samples (for carbon monoxide monitoring) and urine samples (for cotinine testing).

NOTE: Smoking cessation may prevent certain smoking-related illnesses, including cancer.

PROJECTED ACCRUAL: A total of 602 patients (258 receiving varenicline, 258 receiving nicotine replacement therapy, and 86 receiving placebo) will be accrued for this study.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

315

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • Rhode Island
      • Providence, Rhode Island, Vereinigte Staaten, 02903
        • Rhode Island Hospital Comprehensive Cancer Center

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 120 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

INCLUSION CRITERIA

  • Current and regular cigarette smokers (over 10 cigarettes/day for the past 3 months)
  • Interested in quitting smoking

    • Willing to set a quit date 7 days after baseline assessment
  • Participating in 1 of 5 methadone maintenance treatment programs across Rhode Island at any of the following institutions:

    • Codac, Inc. (with two independent sites)
    • Addiction Recovery Institute
    • Center for Treatment and Recovery
    • Discovery House
  • Has received methadone for at least the past month

EXCLUSION CRITERIA

  • Pregnant or nursing (Must have negative pregnancy test)
  • Non-English speaking
  • No personal telephone or does not live close to a relative or neighbor with a telephone
  • Unwilling to make their methadone dose and methadone maintenance treatment program urine toxicologies available for review
  • Unvailable for this study for the next 12 months
  • Suffering from any unstable medical condition which would preclude the use of the nicotine patch (e.g., unstable angina or uncontrolled hypertension)
  • Active skin condition (e.g., psoriasis)
  • History of skin allergy
  • History of a suicide attempt
  • Working as pilots, drivers, or operators of heavy machinery

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  • No concurrent insulin or blood thinners
  • No concurrent smokeless tobacco, nicotine replacement therapy, or other smoking cessation treatment

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Verhütung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Verdreifachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Arm I
Patients receive oral varenicline once daily on days 1-3 and twice daily thereafter for a total of 6 months or when a comfortable level of smoking abstinence is reached.
Given orally
Placebo-Komparator: Arm II
Patients receive oral varenicline placebo once daily on days 1-3 and twice daily thereafter for a total of 6 months or when a comfortable level of smoking abstinence is reached.
Mündlich gegeben
Aktiver Komparator: Arm III
Patients receive a nicotine patch, with doses tapering over time for a total of 26 weeks. Patients also receive nicotine gum to quell breakthrough urges. Patients may stop treatment when a comfortable level of smoking abstinence is reached.
Given transdermally and orally

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Self- Reported 7-day Abstinence
Zeitfenster: 6 Months
Number of participants with self-reported, 7-day abstinence at 6-months
6 Months
Carbon Monoxide (CO)-Confirmed 7-day Abstinence
Zeitfenster: 6-Months
Number of participants reporting 7-day abstinence at 6-months, confirmed with CO measurement.
6-Months
Rates of Smoking Cessation Continuous From First Quit Day to 6 Months
Zeitfenster: 6-Months
Number of participants who self-reported continuous abstinence from their initial quit day (study day 14) to 6 Months
6-Months
Self-reported 7-day Abstinence
Zeitfenster: 12 Months
Number of participants with self-reported 7-day abstinence at 12-months
12 Months
CO-confirmed 7-day Abstinence
Zeitfenster: 12 Months
Number of participants reporting 7-day abstinence at 12-months, confirmed with CO measurement.
12 Months

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Smoking Urges
Zeitfenster: 6 months
Smoking urges was measured on a 0 (not at all) - 100 (strongest feeling possible) scale. Higher values represent greater urge to smoke. Change in smoking urges was calculated as Follow-up score (6 month) - Baseline Score.
6 months
Withdrawal Symptoms
Zeitfenster: 6 months
Withdrawal Symptoms were measured using a modified version of the Minnesota Behavior Rating Scale. The scale asked subjects to rate their smoking withdrawal symptoms over the previous 24 hours on a scale from 0 (none) to 4 (severe). Higher values indicate more severe withdrawal symptoms. Change in withdrawal symptoms was calculated as Follow-up score (6 month) - Baseline Score.
6 months
Retention in Methadone Maintenance
Zeitfenster: 12 months
12 months
Methadone Dose Changes
Zeitfenster: 12 months
12 months
Use of Illicit Drugs as Measured by Urine Toxicologies
Zeitfenster: 12 months
12 months
Reinforcing Effects of Smoking
Zeitfenster: 6 months
Reinforcing effects of smoking was measured using the modified version of the Cigarette Evaluation Questionnaire. Participants were asked to indicate on a 12-item scale how smoking made them feel in the prior 30 days on a scale from 1 (Not at all) to 7 (Extremely). Higher values indicated that smoking was a more positive experience for 10 of 12 items. Two items were reverse coded. Change in reinforcing effects of smoking was calculated as Follow-up score (6 month) - Baseline Score.
6 months
Change in Cigarettes Per Day
Zeitfenster: 6-Months
Change in mean cigarettes per day
6-Months

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Studienstuhl: Michael Stein, MD, Butler Hospital

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. September 2008

Primärer Abschluss (Tatsächlich)

1. Oktober 2012

Studienabschluss (Tatsächlich)

1. Oktober 2012

Studienanmeldedaten

Zuerst eingereicht

11. November 2008

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

12. November 2008

Zuerst gepostet (Schätzen)

13. November 2008

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

6. Juni 2018

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

2. Mai 2018

Zuletzt verifiziert

1. Mai 2018

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • CDR0000616663
  • R01CA129226 (US NIH Stipendium/Vertrag)
  • BUTLER-0807-004

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

Klinische Studien zur Placebo

3
Abonnieren