The Effects of Nicotine on Cognition in Schizophrenia
A Double Blind Placebo Controlled Trial of the Effects of Transdermal Nicotine on Cognitive Function in Non-Smokers With and Without Schizophrenia
2 other identifiers
interventional
60
1 country
1
Brief Summary
Patients with schizophrenia have a variety cognitive deficits and nicotine has been shown to normalize some of these deficits. The purpose of this study is to investigate the effects of nicotine on cognition in schizophrenia.We will evaluate the effects of transdermal nicotine compared with placebo for attentional impairments in non-smokers with schizophrenia and controls.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4 schizophrenia
Started Apr 2004
Longer than P75 for phase_4 schizophrenia
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2004
CompletedFirst Submitted
Initial submission to the registry
September 29, 2006
CompletedFirst Posted
Study publicly available on registry
October 3, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2009
CompletedResults Posted
Study results publicly available
April 28, 2017
CompletedApril 28, 2017
March 1, 2017
4.8 years
September 29, 2006
April 15, 2015
March 20, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Effects of Nicotine Patch Compared With Placebo in Non- Smokers With Schizophrenia and Control Groups on Attention Measured by the Continuous Performance Test Identical Pairs Version
The primary outcome measure was attention as measured by the Continuous Performance Test Identical Pairs (CPT-IP) Version 4.0 (Biobehavioral Technologies, New York, USA), developed for use in patients with schizophrenia and normal controls. In this task, participants were asked to respond when two identical pairs of numbers were presented in sequence by pressing a mouse key as quickly as possible using the dominant hand.The stimuli were presented with increasing cognitive load in successive blocks: two-,three- and four-digit target in the first, second and third block, respectively. Hit reaction time, a standard outcome variables on the CPTIP, is presented here. It was measured 3 hrs after application of the patch
Visit 1 and visit 2 (separated by an interval of 7-10 days)
Secondary Outcomes (3)
Effects of Nicotine Patch Compared With Placebo in Non- Smokers With Schizophrenia and Control Groups on Visual Attention and Cognitive Interference as Measured by Three Card Stroop
Visit 1 and visit 2 (separated by an interval of 7-10 days)
Effects of Nicotine Patch Compared With Placebo in Non- Smokers With Schizophrenia and Control Groups on Letter Number Sequencing
Visit 1 and visit 2 (separated by an interval of 7-10 days)
Effects of Nicotine Patch Compared With Placebo in Non- Smokers With Schizophrenia and Control Groups on Lateralized Psychomotor Speed Measured by the Grooved Pegboard
Visit 1 and visit 2 (separated by an interval of 7-10 days)
Study Arms (2)
Nicotine Patch
ACTIVE COMPARATORPlacebo Nicotine Patch
PLACEBO COMPARATORInterventions
14mg transdermal nicotine application
Eligibility Criteria
You may qualify if:
- Patients:
- DSM IV diagnosis of schizophrenia,
- age 18 - 60 inclusive,
- able to provide informed consent,
- treated with antipsychotic medications at a stable dose for at least 4 weeks,
- not treated with an investigational medication in the past 30 days,
- WRAT-3 IQ raw score greater than or equal to 35,
- non smokers for more than 3 months\*,
- normal or corrected to normal vision.
- Non Smoking defined by:
- Self report of not smoking a single cigarette in the past 3 months.
- Salivary Cotinine level \< 30 ng/ml at screening and on the day of testing
- Expired air CO \< 9ppm on the day of the testing
- Control Group:
- Age 18 - 60 inclusive,
- +6 more criteria
You may not qualify if:
- Patients:
- Use of any nicotine containing product in the past 3 months by self report,
- use of cholinesterase inhibitors such as galantamine in the past 3 months,
- untreated ischaemic heart disease,
- uncontrolled hypertension,
- current unstable serious medical illness (renal, neoplastic, hematological),
- allergy to patches.
- Currently or planning to be pregnant in the next 8 weeks, as verified by positive pregnancy test, or childbearing potential and not using adequate contraception. Those not of childbearing potential include post-menopausal, surgically sterilized, and male participants.
- Substance abuse in the past month: self-reported, diagnosed during chart review, and verified by a positive salivary test for cotinine, cocaine, methamphetamine, amphetamine, ethanol, TCH, opiates or PCP at screen.
- Recent deterioration in mental state, current major depressive disorder, history of cognitive impairment secondary to other disorders such as head injury, dementia, general medical condition, diagnosis of mental retardation
- Controls:
- Past or present DSM IV diagnosis of schizophrenia, schizoaffective disorder, major depression, bipolar disorder, or mental retardation.
- First degree relative with diagnosis of schizophrenia or schizoaffective disorder,
- use of cholinesterase inhibitors such as galantamine in the past 3 months,
- untreated ischaemic heart disease,
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Massachusetts General Hospitallead
- Stanley Medical Research Institutecollaborator
- North Suffolk Mental Health Associationcollaborator
Study Sites (1)
Massachusetts General Hospital Schizophrenia Research Program
Boston, Massachusetts, 02114, United States
Related Publications (3)
Barr RS, Culhane MA, Jubelt LE, Mufti RS, Dyer MA, Weiss AP, Deckersbach T, Kelly JF, Freudenreich O, Goff DC, Evins AE. The effects of transdermal nicotine on cognition in nonsmokers with schizophrenia and nonpsychiatric controls. Neuropsychopharmacology. 2008 Feb;33(3):480-90. doi: 10.1038/sj.npp.1301423. Epub 2007 Apr 18.
PMID: 17443126RESULTBarr RS, Pizzagalli DA, Culhane MA, Goff DC, Evins AE. A single dose of nicotine enhances reward responsiveness in nonsmokers: implications for development of dependence. Biol Psychiatry. 2008 Jun 1;63(11):1061-5. doi: 10.1016/j.biopsych.2007.09.015. Epub 2007 Nov 5.
PMID: 17976537RESULTJubelt LE, Barr RS, Goff DC, Logvinenko T, Weiss AP, Evins AE. Effects of transdermal nicotine on episodic memory in non-smokers with and without schizophrenia. Psychopharmacology (Berl). 2008 Jul;199(1):89-98. doi: 10.1007/s00213-008-1133-8. Epub 2008 Jun 12.
PMID: 18548234RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- A. Eden Evins, MD, MPH. Director of the MGH-Harvard Center for Addiction Medicine
- Organization
- Massachusetts General Hospital - Harvard Medical School
Study Officials
- PRINCIPAL INVESTIGATOR
A E EVINS, MD MPH
Massachusetts General Hosptal
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- PI
Study Record Dates
First Submitted
September 29, 2006
First Posted
October 3, 2006
Study Start
April 1, 2004
Primary Completion
January 1, 2009
Study Completion
January 1, 2009
Last Updated
April 28, 2017
Results First Posted
April 28, 2017
Record last verified: 2017-03