NCT01842334

Brief Summary

  1. 1.Compare the relative efficacy of ten weeks of once weekly 250 mg D-cycloserine (DCS) vs. placebo (both in conjunction with cognitive behavioral therapy (CBT) and nicotine replacement therapy (NRT) on reducing cigarette smoking in treatment-seeking nicotine-dependent outpatients.
  2. 2.Compare the relative efficacy of ten weeks of once weekly 250 mg DCS vs. placebo on the process of extinction and the memory encoding process.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
22

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Apr 2013

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
terminated

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

April 1, 2013

Completed
24 days until next milestone

First Submitted

Initial submission to the registry

April 25, 2013

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 29, 2013

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2017

Completed
1 year until next milestone

Results Posted

Study results publicly available

August 1, 2018

Completed
Last Updated

August 31, 2018

Status Verified

August 1, 2018

Enrollment Period

4.3 years

First QC Date

April 25, 2013

Results QC Date

July 9, 2018

Last Update Submit

August 1, 2018

Conditions

Keywords

Nicotine DependenceSmoking CessationD-cycloserine

Outcome Measures

Primary Outcomes (1)

  • Change From Baseline in Cigarette Smoking in Treatment Seeking Nicotine Dependent Outpatients

    Cigarette smoking at 10 weeks as measured by carbon monoxide levels and self-report measurements.

    During Week 10

Study Arms (2)

D-cycloserine

EXPERIMENTAL

250 mg D-cycloserine once weekly an hour before receiving cognitive behavioral therapy treatment along with Nicotine Replacement Therapy.

Behavioral: Cognitive Behavioral TherapyDrug: Nicotine Replacement Therapy

Placebo

PLACEBO COMPARATOR

one placebo capsule once weekly an hour before receiving cognitive behavioral therapy treatment along with Nicotine Replacement Therapy

Behavioral: Cognitive Behavioral TherapyDrug: Nicotine Replacement Therapy

Interventions

CBT administered to to both DCS and placebo group.

Also known as: CBT
D-cycloserinePlacebo

NRT administered to both DCS and placebo group.

Also known as: NRT
D-cycloserinePlacebo

Eligibility Criteria

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

You may qualify if:

  • \) Age range 18-65 years; 2) DSM-IV diagnosis of nicotine dependence, based on the Structured Clinical Interview for DSM-IV (SCID) (First et al. 1996); 3) express a desire to quit cigarette smoking within the next 30 days; 4) smokes greater than or equal to 10 cigarettes per day and less than or equal to 20 cigarettes per day; 5) an expired carbon monoxide (CO) determination greater than or equal to 10 ppm over ambient values; 6) for women of childbearing age, a negative pregnancy test at screening with agreement to use adequate contraception to prevent pregnancy and multiple subsequent pregnancy tests; 7) consent for us to communicate with their prescribing clinician; 8) furnish the names of 2 locators, who would assist study staff in locating them during the study period; 9) live close enough to McLean Hospital to attend study visits; 10) plan to remain in the Boston area for the next 4 months; and 11) are willing and able to sign informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

McLean Hospital

Belmont, Massachusetts, 02478, United States

Location

MeSH Terms

Conditions

Tobacco Use DisorderSmoking Cessation

Interventions

Cognitive Behavioral TherapyNicotine Replacement Therapy

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental DisordersHealth BehaviorBehavior

Intervention Hierarchy (Ancestors)

Behavior TherapyPsychotherapyBehavioral Disciplines and ActivitiesDrug TherapyTherapeutics

Limitations and Caveats

Due to lack of sufficient funds/resources, the sample size for this study is not large enough to extract any conclusive results. The high number of subjects withdrawing from the study early also hinders any possible conclusions.

Results Point of Contact

Title
Dr. Kevin P Hill, Director of the Division of Addiction Psychiatry
Organization
Beth Israel Deaconess Medical Center

Study Officials

  • Kevin P. Hill, MD, MHS

    Mclean Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Psychiatry

Study Record Dates

First Submitted

April 25, 2013

First Posted

April 29, 2013

Study Start

April 1, 2013

Primary Completion

August 1, 2017

Study Completion

August 1, 2017

Last Updated

August 31, 2018

Results First Posted

August 1, 2018

Record last verified: 2018-08

Locations