- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01223404
Nicotinic Modulation of the Default Network
Nicotinic Modulation of the Default Network of Resting Brain Function
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Maryland
-
Baltimore, Maryland, United States, 21228
- Maryland Psychiatric Research Center
-
Baltimore, Maryland, United States, 21224
- National Institute on Drug Abuse, Intramural Research Program
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age 21 through 50.
- Did not consume cigarettes, cigarillos, cigars, or other tobacco or nicotine-containing products more than 20 times in lifetime, and did not use any nicotine-containing product at all within the last two years.
- Normal or corrected to normal vision (at least 20/80).
Exclusion Criteria:
- Presence of metal objects in the body, implanted electronic devices, or any other counter indication for MRI.
- Claustrophobia.
- Major psychiatric disorders including mood, anxiety or psychotic disorders.
- Cardiovascular or cerebrovascular disease, such as history of myocardial infarction, heart failure, angina, stroke, severe arrhythmias, or EKG abnormalities.
- Kidney or liver disease.
- Hypertension (resting systolic BP above 140 or diastolic above 85 mm Hg).
- Hypotension (resting systolic BP below 95 or diastolic below 60).
- Use of any prescription or over-the-counter drug other than supplements and birth control.
- History of or current neurological illnesses, such as stroke, seizures, dementia or organic brain syndrome.
- Learning disability, attention deficit disorder, or any other condition that impedes memory and attention.
- Glaucoma, organic pyloric stenosis, uremia or renal insufficiency.
- Prostatic hypertrophy, bladder neck obstruction or urethral stricture.
- Left-handed or ambidextrous.
- Pregnant as determined by urine test, or breast-feeding.
- History or current diagnosis of drug or alcohol abuse or dependence.
- IQ < 85 as estimated by the WASI vocabulary subtest.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Placebo, Nicotine, Mecamylamine
Participants undergo 3 test sessions: In the first session ("placebo"), a placebo patch and a placebo capsule is administered. In the second session ("nicotine"), a nicotine patch (7 mg/24 hrs) and a placebo capsule is administered. In the third session ("mecamylamine"), a placebo patch and a mecamylamine capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
Experimental: Nicotine, Placebo, Mecamylamine
Participants undergo 3 test sessions: In the first session ("nicotine"), a nicotine patch and a placebo capsule is administered. In the second session ("placebo"), a placebo patch (7 mg/24 hrs) and a placebo capsule is administered. In the third session ("mecamylamine"), a placebo patch and a mecamylamine capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
Experimental: Placebo, Mecamylamine, Nicotine
Participants undergo 3 test sessions: In the first session ("placebo"), a placebo patch and a placebo capsule is administered. In the second session ("mecamylamine"), a placebo patch (7 mg/24 hrs) and a mecamylamine capsule is administered. In the third session ("nicotine"), a nicotine patch and a placebo capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
Experimental: Nicotine, Mecamylamine, Placebo
Participants undergo 3 test sessions: In the first session ("nicotine"), a nicotine patch and a placebo capsule is administered. In the second session ("mecamylamine"), a placebo patch (7 mg/24 hrs) and a mecamylamine capsule is administered. In the third session ("placebo"), a placebo patch and a placebo capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
Experimental: Mecamylamine, Placebo, Nicotine
Participants undergo 3 test sessions: In the first session ("mecamylamine"), a placebo patch and a mecamylamine capsule is administered. In the second session ("placebo"), a placebo patch (7 mg/24 hrs) and a placebo capsule is administered. In the third session ("nicotine"), a nicotine patch and a placebo capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
Experimental: Mecamylamine, Nicotine, Placebo
Participants undergo 3 test sessions: In the first session ("mecamylamine"), a placebo patch and a mecamylamine capsule is administered. In the second session ("nicotine"), a nicotine patch (7 mg/24 hrs) and a placebo capsule is administered. In the third session ("placebo"), a placebo patch and a placebo capsule is administered. |
Participants are administered a placebo patch and a placebo capsule
Participants are administered a nicotine patch (7 mg/24 hrs) and a placebo capsule
Other Names:
Participants are administered a placebo patch and a capsule containing 7.5 mg of mecamylamine
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Reaction Time
Time Frame: 1 day
|
average reaction time on cognitive task performed in the MR scanner
|
1 day
|
Signal Detection Performance
Time Frame: 1 day
|
Signal detection on cognitive tasks performed in the MR scanner.
For the attention task, this represents the percentage of trials in which the participant responded when a signal was presented.
In the working memory task (N-back task), this represents the percentage of all target sequences to which the participant responded.
|
1 day
|
Default Network Activity
Time Frame: 1 day
|
Cognitive task-induced default network deactivation, measured by functional Magnetic Resonance Imaging.
The default network was probed by five pre-defined ROIs per hemisphere.
Task-induced deactivation was averaged across all ROIs.
|
1 day
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Subjective State
Time Frame: 1 day
|
End-of-session subjective state is measured by the Profile of Mood States (POMS).
We utilize "Total Mood Disturbance" (TMD) as a summary measure, derived by adding the total scores on the five negative mood scales (tension, depression, anger, fatigue, confusion) and subtracting the score on the one positive mood scale (vigor).
The theoretical range of the TMD scale is -32 to 228, with negative values indicating less mood disturbance, i.e., a more positive emotional state.
|
1 day
|
Systolic Blood Pressure
Time Frame: Bi-hourly: prior to patch application, 2 hours, 4 hours, and 6 hours after, and after the MRI scan (~8 hours after patch application)
|
Systolic blood pressure (mmHg)
|
Bi-hourly: prior to patch application, 2 hours, 4 hours, and 6 hours after, and after the MRI scan (~8 hours after patch application)
|
Diastolic Blood Pressure
Time Frame: Bi-hourly: prior to patch application, 2 hours, 4 hours, and 6 hours after, and after the MRI scan (~8 hours after patch application).
|
Diastolic blood pressure in mmHg.
|
Bi-hourly: prior to patch application, 2 hours, 4 hours, and 6 hours after, and after the MRI scan (~8 hours after patch application).
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Britta Hahn, Ph.D., University of Maryland, College Park
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Antihypertensive Agents
- Autonomic Agents
- Peripheral Nervous System Agents
- Cholinergic Antagonists
- Cholinergic Agents
- Ganglionic Stimulants
- Nicotinic Agonists
- Cholinergic Agonists
- Ganglionic Blockers
- Nicotinic Antagonists
- Nicotine
- Mecamylamine
Other Study ID Numbers
- HP-00042696
- R21DA027894 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Magnetic Resonance Imaging
-
BayerCompletedMagnetic Resonance Imaging | Magnetic Resonance AngiographyPoland, China, France, Germany, Hungary, Korea, Republic of, South Africa, Spain, Thailand, Taiwan, Czech Republic, Hong Kong, Italy, Kazakhstan, Russian Federation, Bosnia and Herzegovina, Greece, Canada, Vietnam, Kyrgyzstan
-
Centre Hospitalier Régional Metz-ThionvilleUniversity of LorraineRecruitingMagnetic Resonance ImagingFrance
-
Jessa HospitalActive, not recruitingMagnetic Resonance ImagingBelgium
-
BayerCompletedMagnetic Resonance ImagingUnited States, Korea, Republic of, France, Germany, Italy, Switzerland, United Kingdom
-
Boston Scientific CorporationCompletedMagnetic Resonance ImagingSpain, Hong Kong, Germany, Israel, United Kingdom, Italy, United States, Malaysia, Belgium
-
Centre Hospitalier Universitaire, AmiensCompletedMagnetic Resonance ImagingFrance
-
MegaPro Biomedical Co. Ltd.CompletedMagnetic Resonance ImagingTaiwan
-
BayerCompletedMagnetic Resonance ImagingJapan
-
BayerCompletedMagnetic Resonance ImagingPhilippines
-
BayerCompletedMagnetic Resonance Imaging | Myocardial Perfusion ImagingSwitzerland, Germany, Austria, Poland
Clinical Trials on Placebo
-
SamA Pharmaceutical Co., LtdUnknownAcute Bronchitis | Acute Upper Respiratory Tract InfectionKorea, Republic of
-
National Institute on Drug Abuse (NIDA)CompletedCannabis UseUnited States
-
AstraZenecaParexel; Spandauer Damm 130; 14050; Berlin, GermanyCompletedMale Subjects With Type II Diabetes (T2DM)Germany
-
Heptares Therapeutics LimitedCompletedPharmacokinetics | Safety IssuesUnited Kingdom
-
GlaxoSmithKlineCompletedPulmonary Disease, Chronic ObstructiveUnited Kingdom, Netherlands
-
Shijiazhuang Yiling Pharmaceutical Co. LtdXuanwu Hospital, BeijingCompleted
-
ItalfarmacoCompletedBecker Muscular DystrophyNetherlands, Italy
-
GlaxoSmithKlineCompletedInfections, BacterialUnited States
-
West Penn Allegheny Health SystemCompletedAsthma | Allergic RhinitisUnited States