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NCT00633321 · ClinicalTrials.gov registry record · Phase 2

Study of TA-NIC to Assess the Efficacy and Safety of the Vaccine as an Aid to Smoking Cessation

A Phase 2 study of Smoking, sponsored by Celtic Pharma Development Services.

Completed
Registry status
Phase 2
Development phase
522
Enrollment target
9
Study locations

NCT00633321: Completed Phase 2 study of Smoking, sponsored by Celtic Pharma Development Services.

NCT00633321 is a Phase 2 study of Smoking that has completed, run by Celtic Pharma Development Services. The registered enrollment target is 522 participants, above the 451-participant average among 123 other Smoking trials with a reported enrollment target (16% higher). The trial reports 9 study locations across 7 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00633321, a Phase 2 study of Smoking, has completed, sponsored by Celtic Pharma Development Services.

COMPLETED
Registry status
Phase 2
Development phase
522 participants
Enrollment target
9
Study locations

Study Summary

Over 1 billion people worldwide smoke, resulting in an estimated 4 million deaths annually from smoking-related disease.1 Persistent and long-term smoking leads to an increased risk of cardiovascular damage, respiratory disease, and a higher incidence of a variety of cancers; but for smokers who can quit there is an immediate and significant beneficial impact on their health and life expectancy. Cigarette smoking remains the leading preventable cause of death in the United States (US), accounting for approximately 1 of every 5 deaths (438,000 people) each year. This Phase 2 study will investigate the efficacy and tolerability of 2 doses of TA-NIC compared to placebo as an aid to smoking cessation in smokers who are motivated to quit.

Conditions Studied

Interventions

  • BIOLOGICAL Placebo
  • BIOLOGICAL TA-NIC

Study Locations (9)

Maryland

  • Columbia Medical Practice - Columbia
  • Centennial Medical Group - Elkridge

Texas

  • Benchmark Research - Austin
  • Benchmark Research - Fort Worth - Fort Worth

California

  • Benchmark Research - Sacramento

Louisiana

  • Benchmark Research - Metairie

Minnesota

  • Mayo Clinic - Rochester

New Jersey

  • CNS Research Institute, P.C. - Clementon

Pennsylvania

  • CRI Worldwide, LLC Kirkbride Center - Philadelphia

Trial Details

FieldValue
Enrollment Target 522 participants
Start Date 2007-05
Est. Completion 2009-02
Phase Phase 2

What the finished NCT00633321 record still lists

NCT00633321 is an interventional study that assigns participants to a tested intervention. The registered 522 participants enrollment target is mid-sized for trials with a published cap, above the 451-participant average among 123 other Smoking trials with a reported enrollment target (16% higher).

The record links to 1 condition, with Smoking appearing as the primary indexed condition, and to 2 interventions - of which Placebo is the first listed.

NCT00633321 lists 9 locations in 7 states (Maryland, Texas, California).

Frequently Asked Questions

What is clinical trial NCT00633321 about?

NCT00633321 is a clinical study titled "Study of TA-NIC to Assess the Efficacy and Safety of the Vaccine as an Aid to Smoking Cessation". Over 1 billion people worldwide smoke, resulting in an estimated 4 million deaths annually from smoking-related disease.1 Persistent and long-term smoking leads to an increased risk of cardiovascular damage, respiratory disease, and a higher incidence of a variety of cancers; but for smokers who can...

What is the current status of trial NCT00633321?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 522 participants. The study started on 2007-05. Estimated completion is 2009-02.

What conditions does trial NCT00633321 study?

This clinical trial studies the following conditions: Smoking.

What interventions are being tested in trial NCT00633321?

The interventions under investigation include: Placebo (BIOLOGICAL), TA-NIC (BIOLOGICAL).

Who is sponsoring clinical trial NCT00633321?

This trial is sponsored by Celtic Pharma Development Services, which has 5 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00633321 being conducted?

This trial has 9 study locations across California, Louisiana, Maryland, Minnesota, New Jersey. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Smoking

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00633321's enrollment target sits among peer trials

522 30th of 123 higher than 94 of 123 other Smoking trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Smoking trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00633321, the US trial registry maintained by the National Library of Medicine. NCT00633321 (mid enrollment · multi site footprint · completed) retrieved and formatted by PlainTrial, see methodology.