- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05857137
Psychosis TMS Study
May 4, 2023 updated by: Hamdi Eryilmaz, PhD, Massachusetts General Hospital
Investigational TMS Study of Cognitive Impairment in Early Psychosis
The main goal of this study is to investigate the neural mechanisms of working memory function in patients with early psychosis using Transcranial Magnetic Stimulation (TMS) in conjunction with functional MRI.
TMS is a noninvasive method used to modulate brain activity via changing magnetic fields applied over the surface of the scalp.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Anticipated)
20
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Alexandra O'Neill, B.S.
- Phone Number: (617) 726-8753
- Email: agoneill@mgh.harvard.edu
Study Contact Backup
- Name: Hamdi Eryilmaz, Ph.D
- Phone Number: (617) 643-7462
- Email: hamdi.eryilmaz@mgh.harvard.edu
Study Locations
-
-
Massachusetts
-
Charlestown, Massachusetts, United States, 02129
- Recruiting
- Martinos Center for Biomedical Imaging
-
Contact:
- Alexandra O'Neill, B.S.
-
-
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
- Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Diagnosis of psychosis, psychosis not otherwise specified, schizophrenia, schizoaffective disorder, delusional disorder, bipolar disorder with psychosis, and schizophreniform disorder within first ten years of onset of psychotic symptoms.
- Ability to provide informed consent
Exclusion Criteria:
- TMS incompatibility including metallic implants in head and neck, cardiac pacemakers, history of seizures, pregnancy.
- MRI-incompatibility including implanted aneurism clips, cardiac pacemakers, metal implants, intrauterine devices, tattoos containing metal ink, pregnancy, and claustrophobia
- Severe substance abuse within 3 months (nicotine allowed)
- Unstable medical or neurologic illness that would preclude participation in study procedures
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: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Active TMS
Participants will receive single-session administration of TMS.
Functional MRI will be acquired before and immediately after the intervention.
|
Continuous theta burst stimulation (cTBS) will be administered over the left inferior parietal lobule for approximately 3 minutes at 120% of the resting motor threshold.
|
Placebo Comparator: Placebo TMS
Participants will also receive single session administration of placebo TMS (at least two days apart from the day of the active TMS).
Functional MRI will be acquired before and immediately after the intervention.
|
Placebo TMS will be applied over the left inferior parietal lobule for approximately 3 minutes.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Working memory accuracy
Time Frame: 2 hours
|
Accuracy at high memory loads during performance of the Sternberg Item Recognition Paradigm will be assessed before and after the TMS interventions.
|
2 hours
|
Reaction time during working memory
Time Frame: 2 hours
|
Reaction time during performance of the Sternberg Item Recognition Paradigm will be assessed before and after the TMS interventions.
|
2 hours
|
Resting state functional connectivity between the left inferior parietal lobule and the regions of the frontoparietal control network
Time Frame: 2 hours
|
Functional connectivity between left inferior parietal lobule and dorsolateral prefrontal cortex will be computed during resting state acquired before and after the TMS interventions.
|
2 hours
|
Resting state functional connectivity within the default mode network
Time Frame: 2 hours
|
Functional connectivity between left inferior parietal lobule and other regions of the default mode network (including the posterior cingulate cortex and the medial prefrontal cortex) will be computed during resting state acquired before and after the TMS interventions.
|
2 hours
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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)
April 4, 2023
Primary Completion (Anticipated)
August 31, 2024
Study Completion (Anticipated)
April 30, 2025
Study Registration Dates
First Submitted
May 4, 2023
First Submitted That Met QC Criteria
May 4, 2023
First Posted (Actual)
May 12, 2023
Study Record Updates
Last Update Posted (Actual)
May 12, 2023
Last Update Submitted That Met QC Criteria
May 4, 2023
Last Verified
May 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2018P000014
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
No
Studies a U.S. FDA-regulated device product
Yes
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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