Testing Pharmacological Therapies for Pregnant Smokers

July 18, 2014 updated by: Duke University
Nicotine dependence has not been sufficiently addressed in current state-of-the-science cessation interventions for pregnant smokers. The weight of the evidence from the general population of smokers suggests that nicotine replacement therapies may be beneficial cessation aids for pregnant smokers who are unable to stop smoking. The tremendous potential of these therapies for promoting smoking cessation among pregnant women creates a pressing need for decision tools and protocols to encourage treatment adherence that is essential for rigorous evaluation of the effectiveness of OTC NRT when provided as part of prenatal care. The results of this research could be directly translated to the improvement of obstetrical care providers' clinical practices. Medically supervised use of OTC NRT by pregnant smokers is an alternative to continued smoking that has the potential to substantially increase rates of smoking cessation during pregnancy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The proposed five-year study is designed to evaluate the effectiveness of providing over-the-counter (OTC) nicotine replacement therapy, choice of gum, lozenge or patch, (NRT) to promote prepartum smoking cessation. Proposed is a two-arm design. Eligible pregnant women (N=300) will be randomized to either: Arm 1, Tailored Cognitive Behavioral Treatment (TCBT, n=100) that provides women with customized risk information about smoking and nicotine, the potential harms to the fetus and encouragement of appropriate behavioral skills building; or Arm 2, TCBT + NRT - the tailored intervention incorporating NRT information plus choice of patch or gum (n=200). The intervention will include 5 face-to-face contacts as part of prenatal visits and 1 telephone counseling session. Primary outcome measures will be biochemically validated 7-day prevalent abstinence rates at the 19-27th and 29-37th week of pregnancy. Secondary outcomes will include 7-day prevalent abstinence rates at 12 weeks postpartum, serious quit attempts, compliance with NRT, and use of materials. Saliva cotinine will be measured among all women at baseline, the 27-35th week of pregnancy, and 12 weeks postpartum. The significance of this project is that it relies on transdisciplinary collaborations to extend the science in nicotine replacement therapies to a population that could derive substantial health benefits. Moreover, the study results have immediate potential to inform clinical recommendations for integrating nicotine replacement into prenatal care.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
181

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Medical Center
      • Fayetteville, North Carolina, United States, 28310
        • Womack Army Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Be at least 18 years of age
  • Be between 13 and 25 weeks of pregnancy
  • Be receiving prenatal care at one of the participating clinics
  • Have smoked at least 100 cigarettes in their lifetime
  • Be currently smoking and have smoked at least 5 cigarettes per day in the past 7 days
  • Speak and write English

Exclusion Criteria:

  • Evidence of cognitive or mental health problems
  • Evidence of possible drug or alcohol addiction
  • Documented history in medical chart of mental retardation, significant chronic or recurrent psychiatric disorder such as schizophrenia or severe depression, history of cardiac arrhythmias, history of myocardial infarction within the past 6 months, history of previous pregnancy with congenital anomaly,family history of congenital anomalies
  • Complications of pregnancy during the current pregnancy, including: threatened miscarriage, congenital anomalies, unexplained vaginal bleeding, pelvic or abdominal surgical procedures, deep venous thrombosis, malignancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 1 - CBT Counseling
Participants in this arm received a tailored CBT (TCBT) intervention that included: a written self-help guide, feedback about the importance of reducing nicotine exposure to the fetus, 5 face to face and 1 telephone counseling session.
Behavioral: Motivational interviewing for smoking cessation
All participants received a tailored CBT (TCBT) intervention that included: a written self-help guide, info about the importance of reducing nicotine exposure to the fetus, 5 face to face and 1 telephone counseling session. Women in the TCBT + NRT arm were guided through a process of deciding on nicotine gum, lozenge or patch. To minimize fetal exposure, the dose of NRT was customized to the woman's current level of smoking. Women who smoked 5-10 cigarettes a day were given the 14 mg patch or instructed to use one 2 mg lozenge or 2 mg piece of gum to replace each cigarette she usually smoked per day. Those who smoked 11 cigarettes or more per day were given the 21 mg patch or instructed to use no more than one lozenge (2 mg) or piece of gum (2 mg) to replace each cigarette she usually smoked per day, not to exceed 15 lozenges or pieces of gum per day.
Other Names:
  • Nicoderm CQ (patch)
  • Nicorertte (gum)
  • Commit (lozenge)
Behavioral: Cognitive behaviors therapy
6 counseling sessions delivered over the phone or in person
Experimental: 2 - Counseling + NRT
Women in this arm received the TCBT described in Arm 1, plus their choice of NRT. To minimize fetal exposure to nicotine for women in the TCBT+NRT arm, the dose of NRT are customized to the woman's current level of smoking. Women who smoke 5-10 cigarettes a day will be given the 14 mg patch or instructed to use one 2 mg lozenge or 2 mg piece of gum to replace each cigarette she usually smokes per day. Those who smoke 11 cigarettes or more per day will be given the 21 mg patch or instructed to use no more than one lozenge (2 mg) or piece of gum (2 mg) to replace each cigarette she usually smokes per day, not to exceed 15 lozenges or pieces of gum per day.
Behavioral: Motivational interviewing for smoking cessation
All participants received a tailored CBT (TCBT) intervention that included: a written self-help guide, info about the importance of reducing nicotine exposure to the fetus, 5 face to face and 1 telephone counseling session. Women in the TCBT + NRT arm were guided through a process of deciding on nicotine gum, lozenge or patch. To minimize fetal exposure, the dose of NRT was customized to the woman's current level of smoking. Women who smoked 5-10 cigarettes a day were given the 14 mg patch or instructed to use one 2 mg lozenge or 2 mg piece of gum to replace each cigarette she usually smoked per day. Those who smoked 11 cigarettes or more per day were given the 21 mg patch or instructed to use no more than one lozenge (2 mg) or piece of gum (2 mg) to replace each cigarette she usually smoked per day, not to exceed 15 lozenges or pieces of gum per day.
Other Names:
  • Nicoderm CQ (patch)
  • Nicorertte (gum)
  • Commit (lozenge)
Drug: CBT + NRT
Includes CBT from arm 1 plus choice of NRT (lozenge, gum, or patch) tailored to smoking amount
Other Names:
  • Nicoderm CQ (patch)
  • Commit (lozenge)
  • Nicorette (gum)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Biochemically-validated smoking cessation
Time Frame: middle and late pregnancy
middle and late pregnancy

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Biochemically-validated smoking cessation
Time Frame: 3 months postpartum
3 months postpartum

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Duke University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Evan Myers, MD, MPH, Duke University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2003

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2006

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 21, 2005

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 21, 2005

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 23, 2005

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 21, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 18, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Pro00007724
  • Duke University IRB #2865
  • CA89053 (Other Identifier: DUMC)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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