Varenicline Treatment in Alcohol and Nicotine Dependent Patients With Schizophrenia

NCT ID: NCT00727103

Last Updated: 2024-02-08

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 10 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2008-07-31
• Study Completion Date: 2011-05-31

Brief Summary

The aim of the proposed pilot study is to find out whether varenicline (ChantixTM) treatment decreases alcohol use and smoking in patients with schizophrenia or schizoaffective disorder. Varenicline may also improve cognition (memory and concentration) and negative symptoms (e.g. poor attention, poverty of speech, apathy, affective flattening, anhedonia) in patients with schizophrenia and comorbid nicotine and alcohol dependence.

Detailed Description

Alcohol use (more than 33%) and smoking (80-90%) commonly occur together in patients with schizophrenia. Varenicline (ChantixTM) has been approved by the FDA as a medication for smoking cessation. Recent animal studies have shown that chronic varenicline administration decreased alcohol consumption. There are no human data available on the effectiveness of varenicline in alcohol-use disorders.

The aim of the proposed pilot study is to find out whether varenicline treatment decreases alcohol use and smoking in patients with schizophrenia or schizoaffective disorder. Varenicline may also improve cognition (memory and concentration) and negative symptoms (e.g. poor attention, poverty of speech, apathy, affective flattening, anhedonia) in patients with schizophrenia and comorbid nicotine and alcohol dependence.

The proposed pilot study will enroll a cohort of up to 30 subjects with schizophrenia or schizoaffective disorder and nicotine and alcohol dependence, who are receiving ongoing outpatient mental health treatment from community providers. Subjects will be randomly assigned to one of the two treatment groups (varenicline vs. placebo). Following a one week screening phase, participants will be seen on day 4, day 8, then weekly over an 8-week treatment period. One week supply of medication will be dispensed at each study visit, with the exception of the first week, when only 4 days supply will be given on 2 days (visit 1 and 2). One month after discontinuation of medication, a follow-up interview will be conducted.

Varenicline and placebo will be dispensed in 0.5 mg and 1 mg color coded capsules. During the first 3 days of treatment, participants will take one 0.5 mg tablet of varenicline (or placebo) by mouth daily. If the medication is well-tolerated, the dose will be increased to 0.5 mg by mouth twice daily for 4 days. From day 8, the dose will be increased to the standard dosing schedule of 1 mg (1 tablet) by mouth twice daily. At the end of the 8th week, varenicline will be discontinued.

A structured clinical psychiatric interview and physical exam will be performed at baseline, along with a urine drug screen, which will be repeated on week 8, and at 1 month follow-up. Blood tests (complete blood count, basic metabolic panel, liver function tests) will be performed at baseline, then monthly.

During weekly study visits patients will undergo breath carbon-monoxide and breath alcohol testing, and they will answer questions about depression, smoking and alcohol use. Detailed assessment of psychiatric symptom severity (including neuropsychological testing) will be performed at baseline, at the end of the treatment phase (week 8). A functional MRI study will be performed at baseline and at the end of study to assess changes in blood flow, emotional processing and working memory related to varenicline treatment. In addition, genetic polymorphism of the α4β2 nicotinic acetylcholine receptor and gene expression changes related to drinking/smoking/psychosis and varenicline treatment will also be assessed.

The primary objectives of the proposed study are two fold: first to determine the feasibility of conducting a similar study on a larger scale, and second to establish pilot data for determining the effect size for hypothesized treatment effects on alcohol and nicotine use based on objective tests and self report. These estimates will help inform the minimum sample size needed for a larger future trial.

Conditions

Schizophrenia; Schizoaffective Disorder; Alcohol Dependence; Nicotine Dependence

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

1 Varenicline

Varenicline will be dispensed in 0.5 mg (blue capsules containing a 0.5 mg varenicline tablet) and 1 mg (red capsules containing a 1 mg varenicline tablet) capsules taken orally. During the first 3 days of medication, participants will take one blue capsule (0.5 mg tablet) of varenicline daily. If the medication is well-tolerated, the dose will be increased to one blue capsule (0.5 mg) po twice daily for 4 days. On day 8, the dose will be increased again to the standard dosing schedule of 1 red capsule (1 mg) po twice daily. At the end of the 8th week, varenicline will be discontinued.

Group Type: ACTIVE_COMPARATOR

Varenicline

Intervention Type: DRUG

Varenicline will be dispensed in 0.5 mg and 1 mg tablets taken orally. During the first 3 days of medication, participants will take one 0.5 mg tablet of varenicline daily. If the medication is well-tolerated, the dose will be increased to 0.5 mg po twice daily for 4 days. On day 8, the dose will be increased again to the standard dosing schedule of 1 mg (1 tablet) po twice daily. At the end of the 8th week, varenicline will be discontinued.

2 Placebo

Placebo will be dispensed in blue and red color coded capsules. During the first 3 days, participants will take one blue capsule po daily. If the medication is well-tolerated, the dose will be increased to one blue capsule po twice daily for 4 days. On day 8, the patients will take 1 red capsule po twice daily. At the end of the 8th week, placebo will be discontinued.

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Placebo will be dispensed in color-coded capsules. Blue capsules will contain 0.5 mg glucose (placebo), red capsules will contain 1 mg glucose (placebo).

Interventions

Varenicline

Varenicline will be dispensed in 0.5 mg and 1 mg tablets taken orally. During the first 3 days of medication, participants will take one 0.5 mg tablet of varenicline daily. If the medication is well-tolerated, the dose will be increased to 0.5 mg po twice daily for 4 days. On day 8, the dose will be increased again to the standard dosing schedule of 1 mg (1 tablet) po twice daily. At the end of the 8th week, varenicline will be discontinued.

Intervention Type: DRUG

Placebo

Placebo will be dispensed in color-coded capsules. Blue capsules will contain 0.5 mg glucose (placebo), red capsules will contain 1 mg glucose (placebo).

Intervention Type: DRUG

Other Intervention Names

Chantix

Eligibility Criteria

Inclusion Criteria

• Males or females, ages 18 to 69, with a DSM-IV diagnosis of Schizophrenia or Schizoaffective Disorder, receiving outpatient psychiatric treatment
• Currently taking antipsychotic medication for at least 4 weeks (medication is prescribed, compliance assessed based on self-report and collateral information)
• Current DSM-IV diagnosis of Nicotine Dependence
• Current DSM-IV diagnosis of Alcohol Dependence
• Subject expresses a desire to cut down or quit smoking and drinking (based on assessment with contemplation ladder)
• An average of at least one pack of cigarettes per day (>=20 cigarettes/day) over the 7 days prior to intake
• An average of at least 7 drinks over the 7 days prior to intake

Exclusion Criteria

• Inability to give adequate informed consent
• Currently taking sustained - release bupropion (Zyban) or receiving any other form of bupropion, such as Wellbutrin or Wellbutrin SR; receiving another form of pharmacological smoking cessation treatment (e.g., nicotine gum or patch); or participating in another structured, formal smoking cessation program.
• Currently taking naltrexone (ReVia), Campral or Antabuse
• Participation in a clinical trial less than 3 months prior to intake
• History of suicide attempt in the past year
• History of hospitalization due to suicidal ideation in the past year
• Suicidal ideation at baseline
• Known allergic reaction to varenicline
• Female patients of childbearing potential who are sexually active, not sterile, and who deny using a form of birth control.
• Female patients who are pregnant or nursing.
• Significant unstable medical problems (e.g. impaired renal function).
• Significant unstable psychiatric disorders.
• Subjects who do not attend all required screening appointments.
• Subjects who have pending legal proceedings whose outcome may lead to incarceration within 3 months of intake.
• Positive urine drug screen for cocaine, opioids or amphetamine at baseline
• Current DSM-IV diagnosis of Cocaine, Opioid or Cannabis Dependence (1 month prior to enrollment)
• Metal implants or devices (e.g. aneurysm clips, cochlear implants, neural stimulators, cardiac pacemakers)
• Weight over 250 lbs
• Claustrophobia

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 69 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Alliance for Research on Schizophrenia and Depression

OTHER

Sponsor Role: collaborator

State University of New York - Upstate Medical University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Zsuzsa Szombathyne Meszaros, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

SUNY Upstate Medical University, Department of Psychiatry

Steven L Batki, MD

Role: STUDY_DIRECTOR

University of California, San Francisco

Locations

SUNY Upstate Medical University

Syracuse, New York, United States

Countries

United States

References

Meszaros ZS, Abdul-Malak Y, Dimmock JA, Wang D, Ajagbe TO, Batki SL. Varenicline treatment of concurrent alcohol and nicotine dependence in schizophrenia: a randomized, placebo-controlled pilot trial. J Clin Psychopharmacol. 2013 Apr;33(2):243-7. doi: 10.1097/JCP.0b013e3182870551.

Reference Type: RESULT

PMID: 23422399 (View on PubMed)

Livingstone-Banks J, Fanshawe TR, Thomas KH, Theodoulou A, Hajizadeh A, Hartman L, Lindson N. Nicotine receptor partial agonists for smoking cessation. Cochrane Database Syst Rev. 2023 May 5;5(5):CD006103. doi: 10.1002/14651858.CD006103.pub8.

Reference Type: DERIVED

PMID: 37142273 (View on PubMed)

Other Identifiers

SUNY UMU IRBPHS #5656

Identifier Type: -

Identifier Source: org_study_id