Clinical trial NCT00224419: Testing Pharmacological Therapies for Pregnant Smokers
Official title: Testing Pharmacological Therapies for Pregnant Smokers
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: PHASE4
Conditions: Smoking
Pregnancy
Keywords: Smoking cessation
Pregnancy
Nicotine replacement therapy
Motivational interviewing
Lead sponsor: Duke University
Sponsor class: OTHER
Collaborators: name: National Cancer Institute (NCI)
First posted: 2005-09-23
Enrollment: 181
Sex: FEMALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: 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.

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.

Eligibility criteria: 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

Primary outcomes:
measure: Biochemically-validated smoking cessation
timeFrame: middle and late pregnancy
Secondary outcomes:
measure: Biochemically-validated smoking cessation
timeFrame: 3 months postpartum
Other outcomes:
Locations:
city: Durham
country: United States
facility: Duke University Medical Center
state: North Carolina
city: Fayetteville
country: United States
facility: Womack Army Medical Center
state: North Carolina
Study officials:
affiliation: Duke University
name: Evan Myers, MD, MPH
role: PRINCIPAL_INVESTIGATOR
References:
citation: Pletsch PK, Pollak KI, Peterson BL, Park J, Oncken CA, Swamy GK, Lyna P. Olfactory and gustatory sensory changes to tobacco smoke in pregnant smokers. Res Nurs Health. 2008 Feb;31(1):31-41. doi: 10.1002/nur.20229.
citation: Pollak KI, Oncken CA, Lipkus IM, Peterson BL, Swamy GK, Pletsch PK, Lyna P, Namenek Brouwer RJ, Fish LJ, Myers ER. Challenges and solutions for recruiting pregnant smokers into a nicotine replacement therapy trial. Nicotine Tob Res. 2006 Aug;8(4):547-54. doi: 10.1080/14622200600789882.
citation: Bursey-Reddick, K, Swamy, GK, Brouwer, RN, Pollak, KI, Myers, ER. (2006). Comparison of Self-Reported Smoking Status and Anonymous Urinary Cotinine Testing in Pregnancy. American Journal of Obstetrics & Gynecology, 193 Supplement 6:S107.
citation: Pollak KI, Oncken CA, Lipkus IM, Lyna P, Swamy GK, Pletsch PK, Peterson BL, Heine RP, Brouwer RJ, Fish L, Myers ER. Nicotine replacement and behavioral therapy for smoking cessation in pregnancy. Am J Prev Med. 2007 Oct;33(4):297-305. doi: 10.1016/j.amepre.2007.05.006.
citation: Swamy GK, Roelands JJ, Peterson BL, Fish LJ, Oncken CA, Pletsch PK, Myers ER, Whitecar PW, Pollak KI. Predictors of adverse events among pregnant smokers exposed in a nicotine replacement therapy trial. Am J Obstet Gynecol. 2009 Oct;201(4):354.e1-7. doi: 10.1016/j.ajog.2009.06.006. Epub 2009 Aug 7.