- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04277936
Pharmacologic Modulation of Hippocampal Activity in Psychosis
July 14, 2021 updated by: Stephan Heckers, Vanderbilt University Medical Center
The purpose of this study is to test whether administration of levetiracetam (LEV), a commonly used anti-epileptic that alters neurotransmitter release, can reduce hippocampal hyperactivity.
Specifically, we will utilize two functional magnetic resonance imaging (MRI) techniques: 1) blood oxygen level dependence (BOLD) contrast will assess activity with a visual scene processing task that engages the anterior hippocampus and 2) arterial spin labeling (ASL) will assess baseline activity.
This study will also assess whether patients have improvement in their symptoms after receiving LEV.
Previous studies in people with psychotic disorders have shown that the hippocampus is hyperactive and more activity correlates with worsening of clinical symptoms.
Therefore, the aim of this study is to use an intervention to further understand the underlying mechanisms of the hippocampus in psychosis.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
1
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Tennessee
-
Nashville, Tennessee, United States, 37212
- Vanderbilt University Medical Center
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion criteria for psychosis subjects:
- Men and women age 18 - 65.
- Communicative in English.
- Provide voluntary, written informed consent.
- Physically healthy by medical history.
- BMI > 17.5 and < 45.
- Diagnosis of a psychotic disorder confirmed by Structured Clinical Interview for DSM-V (SCID) or diagnostic interview with a trained clinician.
- Stable medication regimen over at least the past two weeks, including the use of either an oral or intramuscular administration of an antipsychotic medication.
- For females, no longer of child-bearing potential, or agreeing to practice effective contraception during the study; and,
- For females of child-bearing potential, must have negative urine pregnancy test at time of screening visit and before each testing day.
- Not breastfeeding/nursing at time of screening or at any time during the study.
Inclusion criteria for healthy controls All of the above except for subjects will be psychiatrically healthy and not taking psychotropic or potentially psychoactive prescription medication.
Exclusion criteria for psychosis subjects
- Age less than 18 or greater than 65.
- Not communicative in English.
- Unable to provide written informed consent.
- Current medical or neurological illness.
- History of severe head trauma.
- BMI < 17.5 or > 45.
- Meets criteria for diagnosis of substance or alcohol use disorder within the past month.
- Positive urine pregnancy test at time of screening, before each testing day, or any potential concern for pregnancy at any time during the study.
- Breastfeeding/nursing at time of screening or at any time during the study.
- Conditions that preclude MR scanning
- Conditions that preclude study drug administration
Exclusion criteria for healthy controls
All of the above and in addition:
- Current use of psychotropic or potentially psychoactive prescription medication.
- Major psychiatric disorder as determined by DSM-V (major depression, bipolar disorder, obsessive compulsive disorder, post-traumatic stress disorder, etc)
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: BASIC_SCIENCE
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Levetiracetam (LEV) 500 mg
Participants will take their first dose of 500 mg LEV.
After a two hour time window, the participants will complete MRI study.
After MRI, patients will begin a 2-week intervention with 250 mg BID oral LEV.
|
Levetiracetam (LEV) regulates neuronal synaptic exocytosis and calcium-induced neurotransmitter release and has a therapeutic effect on the excitation-inhibition balance of the hippocampus.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hippocampal Activity (Arterial Spin Labeling [ASL] Study)
Time Frame: 2 hours and 2 weeks after administration
|
Change in ASL signal after drug administration
|
2 hours and 2 weeks after administration
|
Hippocampal Recruitment (BOLD Study)
Time Frame: 2 hours and 2 weeks after administration
|
Change in BOLD signal after drug administration
|
2 hours and 2 weeks after administration
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cognitive Symptoms
Time Frame: 2 weeks after administration
|
Change in eye-tracking relational memory task
|
2 weeks after administration
|
Positive and Negative Symptoms
Time Frame: 2 weeks after administration
|
Change PANSS score
|
2 weeks after administration
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
May 11, 2020
Primary Completion (ACTUAL)
August 31, 2020
Study Completion (ACTUAL)
August 31, 2020
Study Registration Dates
First Submitted
February 18, 2020
First Submitted That Met QC Criteria
February 18, 2020
First Posted (ACTUAL)
February 20, 2020
Study Record Updates
Last Update Posted (ACTUAL)
August 5, 2021
Last Update Submitted That Met QC Criteria
July 14, 2021
Last Verified
July 1, 2021
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- VEPP_200218
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
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.
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