NCT00773357

Brief Summary

The purpose of this study is to examine whether guanfacine will attenuate the ability of stress to precipitate smoking lapse behavior in treatment seeking and non-treatment seeking daily smokers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Oct 2008

Longer than P75 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

October 1, 2008

Completed
13 days until next milestone

First Submitted

Initial submission to the registry

October 14, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 16, 2008

Completed
12.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2021

Completed
1 year until next milestone

Results Posted

Study results publicly available

August 1, 2022

Completed
Last Updated

August 3, 2022

Status Verified

August 1, 2022

Enrollment Period

12.8 years

First QC Date

October 14, 2008

Results QC Date

July 7, 2022

Last Update Submit

August 1, 2022

Conditions

Keywords

smoking lapse behaviorguanfacine

Outcome Measures

Primary Outcomes (1)

  • Latency to Initiate Ad-lib Smoking Session

    latency to initiate smoking (in minutes) during a 50-minute period.

    50 minutes

Study Arms (2)

Guanfacine

EXPERIMENTAL

guanfacine 3mg/day

Drug: guanfacine

Placebo

PLACEBO COMPARATOR

placebo control

Drug: placebo

Interventions

3 mg/day, with 3-week lead-in medication period. The starting dose is 0.5 mg/day for days 1-3, followed by 1.5mg/day for days 4-7, followed by 2 mg/day for days 8-12, followed by 2.5 mg/day for days 13-15, followed by 3 mg/day from day 16 to remainder of study. 5-day taper at end of study.

Also known as: Tenex
Guanfacine

placebo

Placebo

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • ages 18-60
  • able to read and write in English
  • smokers

You may not qualify if:

  • any significant current medical conditions that would contraindicate smoking
  • current Diagnostic and Statistical Manual IV (DSM-IV) abuse or dependence of other substances, other than nicotine (or caffeine) dependence
  • positive test result at intake appointments on urine drug screens conducted for opiates, cocaine, or benzodiazepines
  • women who are pregnant or nursing
  • suicidal, homicidal or evidence of severe mental illness
  • participants prescribed any psychotropic drug in the 30 days prior to study enrollment
  • blood donation within the past 6 weeks
  • participants who have engaged in a quit attempt in the past 3 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yale Center for Clinical Investigation, Yale University

New Haven, Connecticut, 06519, United States

Location

MeSH Terms

Conditions

Smoking

Interventions

Guanfacine

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

GuanidinesAmidinesOrganic ChemicalsPhenylacetatesAcids, CarbocyclicCarboxylic Acids

Results Point of Contact

Title
Sherry McKee
Organization
Yale School of Medicine

Study Officials

  • Sherry A McKee, PhD

    Yale University

    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, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Psychiatry

Study Record Dates

First Submitted

October 14, 2008

First Posted

October 16, 2008

Study Start

October 1, 2008

Primary Completion

July 31, 2021

Study Completion

July 31, 2021

Last Updated

August 3, 2022

Results First Posted

August 1, 2022

Record last verified: 2022-08

Locations