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Completed Phase 2 Interventional

12 Week Evaluation of the Safety and Efficacy of 4 Dosing Strategies of CP-526,555 and Placebo for Smoking Cessation.

ClinicalTrials.gov ID: NCT00150254

Public ClinicalTrials.gov record NCT00150254. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 30, 2026, 4:38 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Twelve-Week, Double-Blind, Placebo-Controlled, Randomized, Multicenter Study Evaluating the Safety and Efficacy of Four Dosing Strategies for CP-526,555 ( 0.5 mg BID Titrated, 0.5 mg BID, 1 mg BID, and Titrated 1 mg BID ) in Smoking Cessation

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of the study is to measure the safety and efficacy of four dosing strategies of CP-526,555 for 12 weeks compared with placebo for smoking cessation. Post-treatment follow-up of smoking status to one year from randomization was performed in a non-treatment extension Protocol A3051018

Study identification

NCT ID
NCT00150254
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Pfizer
Industry
Enrollment
625 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 2001 (Type not available)
Primary completion
Not listed
Completion
Oct 2002 (Actual)
Last update posted
Jun 4, 2007

2001 – 2002

United States locations

U.S. sites
13
U.S. states
10
U.S. cities
13
Facility City State ZIP Site status
Pfizer Investigational Site Los Angeles California — —
Pfizer Investigational Site San Bernardino California — —
Pfizer Investigational Site Upland California — —
Pfizer Investigational Site West Covina California — —
Pfizer Investigational Site Farmington Connecticut — —
Pfizer Investigational Site Jackson Florida — —
Pfizer Investigational Site Lexington Kentucky — —
Pfizer Investigational Site New Orleans Louisiana — —
Pfizer Investigational Site Jackson Mississippi — —
Pfizer Investigational Site Omaha Nebraska — —
Pfizer Investigational Site Cincinnati Ohio — —
Pfizer Investigational Site Portland Oregon — —
Pfizer Investigational Site Houston Texas — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00150254, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 4, 2007 · Synced Sep 30, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00150254 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →