NCT00271024

Brief Summary

The purpose of the proposed study is to conduct a randomized, double-blind clinical trial to compare adjunct treatment with 50 mg oral naltrexone vs. placebo in conjunction with standard smoking cessation treatment with nicotine patch and counseling. Hypotheses:

  1. 1.Naltrexone will improve smoking cessation quit rates, as measured at the end of active treatment (3 months) and during long term follow up (1 year).
  2. 2.Weight and smoking-related variables (i.e., less weight gain, as well as reduced craving and withdrawal) will be important factors by which naltrexone improves smoking cessation outcome.
  3. 3.These effects are predicted to be stronger in women compared to men.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
333

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Dec 2005

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2005

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

December 28, 2005

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 29, 2005

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2009

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2010

Completed
3.2 years until next milestone

Results Posted

Study results publicly available

April 26, 2013

Completed
Last Updated

March 23, 2023

Status Verified

February 1, 2023

Enrollment Period

3.5 years

First QC Date

December 28, 2005

Results QC Date

December 19, 2012

Last Update Submit

February 21, 2023

Conditions

Keywords

SmokingSmoking Cessation

Outcome Measures

Primary Outcomes (6)

  • Prolonged Smoking Abstinence: 4 Weeks Post Quit-Date

    Prolonged Abstinence at 4 weeks post quit date (Study Week 7). Prolonged Abstinence defined as not smoking (even a puff of a cigarette) at any point during the previous time frame, allowing for a 1-week grace period.

    4 Weeks Following Smoking Quit Date (Study week 7)

  • Prolonged Smoking Abstinence: 12 Weeks Post Quit-Date

    Prolonged Abstinence at 12 weeks post quit date (Study Week 15). Prolonged Abstinence defined as not smoking (even a puff of a cigarette) at any point during the previous time frame, allowing for a 1-week grace period.

    12 Weeks Following Smoking Quit Date (Study week 15)

  • 7-Day Point Prevalence Smoking Abstinence: 4 Weeks Post Quit-Date

    7-Day Point Prevalence smoking abstinence at 4 weeks post quit date (Study Week 7). 7-Day Point Prevalence abstinence defined as not smoking (even a puff) for seven days in a row or on one day in each of two consecutive weeks during the previous time frame.

    4 Weeks Following Smoking Quit Date (Study week 7)

  • 7-Day Point Prevalence Smoking Abstinence: 12 Weeks Post Quit-Date

    7-Day Point Prevalence smoking abstinence at 12 weeks post quit date (Study Week 15). 7-Day Point Prevalence abstinence defined as not smoking (even a puff) for seven days in a row or on one day in each of two consecutive weeks during the previous time frame.

    12 Weeks Following Smoking Quit Date (Study week 15)

  • 7-Day Point Prevalence Smoking Abstinence: 26 Weeks Post Quit-Date

    7-Day Point Prevalence smoking abstinence at 29 weeks post quit date (Study Week 29). 7-Day Point Prevalence abstinence defined as not smoking (even a puff) for seven days in a row or on one day in each of two consecutive weeks during the previous time frame.

    26 Weeks Following Smoking Quit Date (Study week 29)

  • 7-Day Point Prevalence Smoking Abstinence: 52 Weeks Post Quit-Date

    7-Day Point Prevalence smoking abstinence at 52 weeks post quit date (Study Week 55). 7-Day Point Prevalence abstinence defined as not smoking (even a puff) for seven days in a row or on one day in each of two consecutive weeks during the previous time frame.

    52 Weeks Following Smoking Quit Date (Study week 55)

Secondary Outcomes (4)

  • Weight Change at End of Treatment (Smoking Abstinent Only)

    Weight change at 12 weeks post smoking quit date (study week 15)

  • Weight Change at End of Treatment (Regardless of Quit Status)

    Weight change at 12 weeks post quit date (study week 15) from smoking quit date

  • Opioid Antagonist Reported Side Effects: 1-Week Post Quit Date

    1-Week Post Quit Date (Study Week 4)

  • Opioid Antagonist Reported Side Effects: 4-Weeks Post Quit Date

    4-Weeks Post Quit Date (Study Week 7)

Study Arms (4)

Male Naltrexone

EXPERIMENTAL

50 mg Naltrexone tablet

Drug: Naltrexone (drug)

Female Naltrexone

EXPERIMENTAL

Females receiving either naltrexone (50 mg)

Drug: Naltrexone (drug)

Male Placebo

PLACEBO COMPARATOR

Males receiving Placebo (sugar pill)

Drug: Placebo (for Naltrexone)

Female Placebo

PLACEBO COMPARATOR

Females receiving placebo (sugar pill)

Drug: Placebo (for Naltrexone)

Interventions

50 mg q.d. for 13 weeks

Female NaltrexoneMale Naltrexone

Sugar pill manufactured to mimic Naltrexone tablet

Female PlaceboMale Placebo

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-65, male or female
  • Cigarette smoker of at least 15 but no more than 40 cigarettes daily for at least two years
  • Current diagnosis of DSM-IV Nicotine Dependence, based on SCID interview

You may not qualify if:

  • Desire to quit smoking (self-report rating of interest in quitting at least a 7 on a 10-point scale)
  • Nicometer® cotinine level at baseline at least a 5 on a 6-point scale
  • Reports not quitting smoking in the past three months for more than one week duration
  • Agrees to attend behavioral counseling sessions and complete study measures
  • Has stable residence and telephone and can provide the name of an outside household collateral family member or close friend
  • Substance Dependence in the last one year (other than DSM-IV Nicotine Dependence) or any history of Opioid Dependence (lifetime)
  • Major psychiatric disorder in the last one year, including Axis I disorders or any history of moderate/severe Axis II Disorder, Bipolar Disorder or Psychotic Disorder, based on SCID interview and standard cut-off thresholds on screening questionnaires
  • Past or current medical disorders (cardiovascular, hepatic, neurological, endocrine, etc.) which may adversely interact with study measures
  • Clinically significant lab test abnormalities, positive urine toxicology, or positive pregnancy test
  • Currently pregnant, plans to become pregnant, or lack of effective birth control over next three months, and/or currently lactating, or plans for breastfeeding over next three months
  • History of adverse reaction to opioid antagonist or nicotine replacement treatment
  • Use of any medication that may adversely interact with study measures (antidepressants, phenothiazines, benzodiazepines, etc.); recent or regular use of an opioid medication
  • Unwillingness to attend smoking cessation treatment sessions, take the nicotine patch, or be randomized into medication or placebo conditions, or be available for follow-up assessments
  • Unwillingness to agree to DNA analysis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Chicago, Department of Psychiatry

Chicago, Illinois, 60637, United States

Location

Related Publications (5)

  • King AC, Meyer PJ. Naltrexone alteration of acute smoking response in nicotine-dependent subjects. Pharmacol Biochem Behav. 2000 Jul;66(3):563-72. doi: 10.1016/s0091-3057(00)00258-6.

    PMID: 10899371BACKGROUND
  • King AC. Role of naltrexone in initial smoking cessation: preliminary findings. Alcohol Clin Exp Res. 2002 Dec;26(12):1942-4. doi: 10.1097/01.ALC.0000041003.44118.9B. No abstract available.

    PMID: 12500129BACKGROUND
  • Epstein AM, King AC. Naltrexone attenuates acute cigarette smoking behavior. Pharmacol Biochem Behav. 2004 Jan;77(1):29-37. doi: 10.1016/j.pbb.2003.09.017.

    PMID: 14724039BACKGROUND
  • King A, de Wit H, Riley RC, Cao D, Niaura R, Hatsukami D. Efficacy of naltrexone in smoking cessation: a preliminary study and an examination of sex differences. Nicotine Tob Res. 2006 Oct;8(5):671-82. doi: 10.1080/14622200600789767.

    PMID: 17008194BACKGROUND
  • King AC, Cao D, Zhang L, O'Malley SS. Naltrexone reduction of long-term smoking cessation weight gain in women but not men: a randomized controlled trial. Biol Psychiatry. 2013 May 1;73(9):924-30. doi: 10.1016/j.biopsych.2012.09.025. Epub 2012 Nov 22.

Related Links

MeSH Terms

Conditions

SmokingSmoking Cessation

Interventions

NaltrexonePharmaceutical Preparations

Condition Hierarchy (Ancestors)

BehaviorHealth Behavior

Intervention Hierarchy (Ancestors)

NaloxoneMorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic Compounds

Results Point of Contact

Title
Dr. Andrea King
Organization
University of Chicago

Study Officials

  • Andrea C King, PhD

    The University of Chicago, Department of Psychiatry

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 28, 2005

First Posted

December 29, 2005

Study Start

December 1, 2005

Primary Completion

June 1, 2009

Study Completion

March 1, 2010

Last Updated

March 23, 2023

Results First Posted

April 26, 2013

Record last verified: 2023-02

Locations