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Tobacco Use DisorderPhase 2NCT00115687

Nicotine Replacement Treatment for Pregnant Smokers - 1

A Phase 2 study testing 2 mg nicotine polacrilex in people with Tobacco Use Disorder, run by National Institute on Drug Abuse (NIDA) at 4 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Smoking during pregnancy is an important modifiable cause of poor pregnancy outcomes. Even with augmented behavioral interventions, smoking cessation rates in pregnancy trials rarely exceed 20%. These low quit rates may be due to inadequate treatment of the physical dependence on nicotine. Read more about this study

Who is it for?
Ages 16 to 50 years, women only
Conditions the study is for
Tobacco Use Disorder
What is being tested?
2 mg nicotine polacrilex
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
250 participants
Where
4 sitesUnited States
Study dates
Jun 2002to Apr 2007
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 to 50 years
  • Women only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patient's gestational age is 26 weeks or less.
  • Patient is at least 16 years of age.
  • Patient is able to speak English or Spanish.
  • Patient intends to carry to term.
  • Patient has stable residence.
  • Patient has smoked five or more cigarettes everyday for the past seven days.

Who cannot join

  • Evidence that the patient is pregnant with a fetus with a known congenital abnormality.
  • Unstable medical problems (i.e., hyperthyroidism, temporomandibular joint disorder, pre-eclampsia, threatened abortion, hyperemesis gravidarum)
  • Multiple Gestation
  • Unstable psychiatric disorder
  • Current drug or alcohol abuse or dependence

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • University of Connecticut Health Center

    Farmington, Connecticut, 06030

  • Hartford Hospital

    Hartford, Connecticut, 06106

  • The Hospital of Central Connecticut

    New Britain, Connecticut, 06050

  • Baystate Medical Center

    Springfield, Massachusetts, 01199

Other trials in United States

About this study

Official title: Nicotine Replacement Treatment for Pregnant Smokers

Smoking during pregnancy is an important modifiable cause of poor pregnancy outcomes. Even with augmented behavioral interventions, smoking cessation rates in pregnancy trials rarely exceed 20%. These low quit rates may be due to inadequate treatment of the physical dependence on nicotine. Indeed, medications, which may help to reduce nicotine withdrawal symptoms, are a first-line treatment for smoking treatment in non-pregnant smokers. However, little information is available on the safety or efficacy of medications to treat pregnant smokers.

The purpose of this trial is to evaluate the safety and effectiveness of 2 mg nicotine gum in promoting smoking cessation during pregnancy. The design is a randomized, placebo controlled trial where subjects are randomized to nicotine gum (6 weeks ad libitum use followed by a 6 week taper) or a matching placebo. Women who are doing well at the end of the trial will also be offered gum post-partum for relapse prevention.

Read the detailed description

This proposal will examine the utility of one first-line medication, nicotine gum, as an aid to smoking cessation during pregnancy.

The specific aims are:

  • (1) To compare smoking cessation rates and smoking reduction among pregnant smokers who are randomized to receive nicotine gum (2 mg dose) or a matching placebo;
  • (2) To compare nicotine gum versus placebo on surrogate measures of maternal and fetal safety (i.e., overall nicotine and tobacco exposure at 6 weeks after the quit date and at 32-34 weeks gestation) and birth weight at the time of delivery;
  • (3) To examine which subjects benefit the most from the use of nicotine gum for smoking cessation during pregnancy.

Subjects will be recruited from prenatal clinics that serve primarily a low-income, minority population. Two hundred sixty-eight pregnant smokers will be randomly assigned to receive smoking cessation behavioral counseling and either a 6-week course of mint flavored placebo or nicotine gum, followed by 6 weeks of decreasing doses. Maternal blood for genotyping will be obtained at study entry. Primary outcome measures will be 7-day point prevalence of cigarette abstinence, number of cigarettes smoked per day, urinary cotinine concentrations, and measures of tobacco exposure (i.e., carbon monoxide in exhaled air and urine anabasine and anatabine) at 6 weeks after the quit date and at 32-34 weeks gestation, and infant birth weight. We hypothesize that:

  • (1) Pregnant smokers who are randomized to nicotine gum will have double the quit rates and will reduce their smoking to a greater degree than subjects randomized to placebo;
  • (2) Nicotine gum compared to placebo will reduce maternal levels of tobacco-exposure markers and increase birth weights in the offspring;
  • (3) The odds of cigarette abstinence will be increased primarily in subjects who smoke at least 15 cigarettes per day.
Being tested
placebo, 2 mg nicotine polacrilex
Keywords
nicotine addiction
Medical subject headings
Tobacco Use Disorder

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • placeboDrug

  • 2 mg nicotine polacrilexDrug

Study groups in NCT00115687
Study groupRoleWhat they receive
APlacebo comparatorplacebo
Receives: Drug: placebo
BExperimental2 mg nicotine gum
Receives: Drug: 2 mg nicotine polacrilex

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Biochemically validated quit rates

    Measured: 6 weeks after treatment, end of pregnancy

Secondary outcomes (2)
  1. tobacco exposure measurements

    Measured: 6 weeks after treatment, end of pregnancy

  2. birth weight

    Measured: time of delivery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jun 2005 (estimated)
  2. Study startJun 2002
  3. Primary completionApr 2007
  4. Study completionApr 2007

Why it stopped: Efficacy rates did not show large enough differences between treatments

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
250 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00115687
Sponsor's protocol ID
NIDA-15167-1
Other IDs
R01-15167-1, DPMCDA
Status last verified
May 2010
First submitted
23 Jun 2005
Last updated
12 Jan 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Oncken C, Dornelas E, Greene J, Sankey H, Glasmann A, Feinn R, Kranzler HR. Nicotine gum for pregnant smokers: a randomized controlled trial. Obstet Gynecol. 2008 Oct;112(4):859-67. doi: 10.1097/AOG.0b013e318187e1ec.

    PubMed 18827129

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing 2 mg nicotine polacrilex in people with Tobacco Use Disorder, run by National Institute on Drug Abuse (NIDA) at 4 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 12 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Efficacy rates did not show large enough differences between treatments). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Biochemically validated quit rates (time frame: 6 weeks after treatment, end of pregnancy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00115687, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jan 2017.

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