Measuring Smoking Behavior in People With Schizophrenia and Bipolar Disorder

This study has been completed.
Sponsor:
Collaborator:
Information provided by (Responsible Party):
Rutgers, The State University of New Jersey ( University of Medicine and Dentistry of New Jersey )
ClinicalTrials.gov Identifier:
NCT00382915
First received: September 29, 2006
Last updated: May 24, 2013
Last verified: May 2013
  Purpose

This study will evaluate the differences in smoking behavior, nicotine intake, and nicotine boost among people with schizophrenia, bipolar disorder, or no mental illness.


Condition Intervention
Schizophrenia
Bipolar Disorder
Device: CReSSmicro handheld topography device

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Nicotine Intake in Smokers With Schizophrenia

Resource links provided by NLM:


Further study details as provided by Rutgers, The State University of New Jersey:

Primary Outcome Measures:
  • Smoking behavior and nicotine levels in those diagnosed with schizophrenia, those diagnosed with bipolar disorder and, those without a current mental illness [ Time Frame: Measured at Hour 24 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Difference in blood levels of cotinine in smokers with schizophrenia compared to controls [ Time Frame: Measured at Hour 24 ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples With DNA

Whole blood for DNA extraction


Enrollment: 276
Study Start Date: October 2006
Study Completion Date: December 2010
Primary Completion Date: September 2010 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
1
Smokers with schizophrenia
Device: CReSSmicro handheld topography device
The CReSS micro device represents the state-of-the-art technology for measurements of ambulatory puff topography taken in the smoker's natural environment. Although all topography measurements are limited, at least to some degree, by the artificial act of smoking while using a device, or smoking through a mouthpiece, this small, lightweight and portable device is easy to use outside of the laboratory setting to capture more naturalistic smoking behavior and allows for less intrusion from the research team and research environment.
2
Smokers with bipolar disorder
Device: CReSSmicro handheld topography device
The CReSS micro device represents the state-of-the-art technology for measurements of ambulatory puff topography taken in the smoker's natural environment. Although all topography measurements are limited, at least to some degree, by the artificial act of smoking while using a device, or smoking through a mouthpiece, this small, lightweight and portable device is easy to use outside of the laboratory setting to capture more naturalistic smoking behavior and allows for less intrusion from the research team and research environment.
3
Smokers without any mental illness
Device: CReSSmicro handheld topography device
The CReSS micro device represents the state-of-the-art technology for measurements of ambulatory puff topography taken in the smoker's natural environment. Although all topography measurements are limited, at least to some degree, by the artificial act of smoking while using a device, or smoking through a mouthpiece, this small, lightweight and portable device is easy to use outside of the laboratory setting to capture more naturalistic smoking behavior and allows for less intrusion from the research team and research environment.

Detailed Description:

People with schizophrenia, a disabling mental disorder, smoke at rates three times higher than those of the general population. They also tend to develop serious medical problems due to this heavy smoking. Little is known, however, about the relationship between schizophrenia and smoking. Smoking topography, the study of cigarette-puffing behavior, may help to uncover important information about the smoking habits of people with schizophrenia, and how they differ from smokers who do not have a mental illness. To develop more effective treatment approaches for schizophrenic smokers, a better understanding of nicotine addiction in this population is needed. This study will use hand-held smoking topography devices and blood tests to measure smoking behavior and nicotine levels in people with schizophrenia. This information will be compared to similar measurements in people with no mental illness and in people with bipolar disorder, another disorder associated with high rates of heavy smoking.

Participation in this open-label, observational study will last approximately 1 to 2 weeks, and will consist of two to three study visits. The first visit will last about 2 hours, and will include screening procedures, completion of baseline questionnaires, and a practice session of smoking topography. Subjects will return on a second day (Day 2) for the remainder of the study procedures to assess their smoking puffing behavior and nicotine intake from usual cigarette smoking, which will occur within 1 week of the Day 1 assessments. On the afternoon prior to Day 2 subjects will have a brief appointment to review instructions for using the topography device. They will take the topography with them and be instructed to use it as they smoke ad-lib that evening at home. This will serve as a second practice session for getting used to the topography device. They will also be instructed to use the device for all cigarettes smoked upon awakening the next day at 6am (Day 2), including the first cigarette of the day. They will go to the study site for the first of three blood tests at 9:30 A.M, after which they will be allowed to leave the study site to continue with their daily activities. They will use the smoking topography device throughout the day, until 3 P.M. At this time, study staff will go to each participant's location to collect the device. Participants will have two additional blood tests over the course of the study to measure nicotine levels.

  Eligibility

Ages Eligible for Study:   18 Years to 75 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Subjects will be 100 smokers with schizophrenia, 100 smokers with bipolar disorder and 100 smokers without mental illness. This will include smokers within the New Jersey metropolitan area, who receive treatment at the UMDNJ-University Behavioral Health Care System (UBHC) or at another outpatient behavioral health care agency. A community sample of healthy volunteer smokers without mental illness will be recruited through advertisements to participate in the study.

Criteria

Inclusion Criteria:

For smokers with schizophrenia or bipolar disorder:

  • Meets DSM-IV diagnostic criteria for schizophrenia or bipolar I disorder
  • Smokes 10 or more cigarettes every day
  • Has been stable on current psychiatric medications for at least 1 month prior to study entry

For control smokers without mental illness:

  • Smokes 10 or more cigarettes every day

Exclusion Criteria:

For smokers with schizophrenia or bipolar disorder:

  • Current or past suicidal ideation, behavior, or suicide attempt within 30 days prior to study entry
  • Psychiatric hospitalization within 30 days prior to study entry
  • Inability to read English or inability to sufficiently understand study documents written in English
  • Pregnant, breastfeeding, or plans to become pregnant within 1 month of study entry
  • Current use of any non-cigarette forms of tobacco (e.g., cigars, pipes, smokeless tobacco, or ultralight cigarettes)
  • Current substance abuse problem, as defined by DAST or AUDIT criteria
  • Significant cognitive impairment that may interfere with study participation, as defined by a Folstein Mini-Mental Status exam score of less than 22

For control smokers without mental illness:

  • Any DSM-defined mental disorder within 1 year prior to study entry
  • Inability to read English or inability to sufficiently understand study documents written in English
  • Concomitant use of nicotine replacement therapy (e.g., gum, patch, inhaler, nasal spray, or lozenge), clonidine, bupropion, or nortriptyline
  • Pregnant, breastfeeding, or plans to become pregnant within 1 month of study entry
  • Current use of any non-cigarette forms of tobacco (e.g., cigars, pipes, smokeless tobacco, or ultralight cigarettes)
  • Diagnosis or treatment for an episode of any mental disorder (e.g., depression or anxiety) within 1 year prior to study entry
  • Lifetime diagnosis of bipolar disorder or schizophrenia
  • Lifetime history of any psychotic symptoms
  • Lifetime use of antipsychotic medication for any reason
  • Use of any antidepressants, mood stabilizers, or anti-anxiety medications for any reason within 6 months prior to study entry
  • Current substance abuse problem, as defined by DAST or AUDIT criteria
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00382915

Locations
United States, New Jersey
UMDNJ-Robert Wood Johnson Medical School, Department of Psychiatry, Division of Addictions
New Brunswick, New Jersey, United States, 08901
Sponsors and Collaborators
University of Medicine and Dentistry of New Jersey
Investigators
Principal Investigator: Jill M. Williams, MD Rutgers, The State University of New Jersey
Study Director: Kunal K. Gandhi, MBBS, MPH Rutgers, The State University of New Jersey
  More Information

Publications:
Responsible Party: Rutgers, The State University of New Jersey ( University of Medicine and Dentistry of New Jersey )
ClinicalTrials.gov Identifier: NCT00382915     History of Changes
Other Study ID Numbers: R01 MH076672, R01MH076672, DAHBR 96-BHB
Study First Received: September 29, 2006
Last Updated: May 24, 2013
Health Authority: United States: Federal Government

Keywords provided by Rutgers, The State University of New Jersey:
Smoking
Topography
Nicotine

Additional relevant MeSH terms:
Bipolar Disorder
Schizophrenia
Affective Disorders, Psychotic
Mood Disorders
Mental Disorders
Schizophrenia and Disorders with Psychotic Features

ClinicalTrials.gov processed this record on July 26, 2014