Neuromodulation for a Novel OCD Biomarker and Treatment

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-01

Study Completion Date

2026-08-31

Brief Summary

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Although multiple treatments for OCD exist, slow symptom decrease, high remission, and significant side effects for some OCD patients limit their efficacy. More research into the precise neural mechanisms and linked cognitive functions in OCD is also necessary. To address both concerns, this study by Dr. Reinhart and his team will test a new, non-invasive, and well-tolerated neuromodulation method for reducing OCD symptoms, based on reward-related rhythms of the orbitofrontal cortex (OFC; a brain region responsible for reward, decision making and other crucial functions that is affected by OCD). This proposal is based on highly encouraging preliminary data in both subsyndromal and treatment-resistant populations that shows rapid reductions in OCD behaviors that last at least 1-3 months. Using high-definition transcranial alternating current stimulation (HD-tACS) guided by EEG brain wave recordings, the study will test whether repetitive modulation of relevant rhythm activity in the OFC can lead to rapid (within five days) and sustainable (up to three months) OCD symptom reduction. This research aims to increase knowledge of OCD and development of effective treatment with minimal side effects.

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Detailed Description

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Conditions

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OCD

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Active HD-tACS

HD-tACS of OFC

Group Type ACTIVE_COMPARATOR

high definition transcranial alternating current stimulation

Intervention Type DEVICE

low intensity alternating current to OFC

Sham HD-tACS

HD-tACS of OFC

Group Type SHAM_COMPARATOR

high definition transcranial alternating current stimulation

Intervention Type DEVICE

low intensity alternating current to OFC

Interventions

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high definition transcranial alternating current stimulation

low intensity alternating current to OFC

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

(1) a primary DSM-5 diagnosis of OCD, (2) a score of 16 or greater on the YBOCS (3) at least 18 years of age; and (4) willingness and ability to provide informed consent and comply with the requirements of the study protocol.

Exclusion Criteria

(1) a lifetime history of bipolar or psychotic disorders; (2) history of Tourette syndrome; (3) psychosurgery; (4) substance abuse or dependence (other than nicotine) in the past 3 months; (5) organic brain syndrome, mental retardation or other potentially interfering cognitive dysfunction; (6) severe depression (MADRS score of 30 or greater); (7) suicidal risk as determined by moderate or greater score on the Columbia Suicide Severity Rating Scale (C-SSRS); (8) pregnancy or lactation; (9) changes to pharmacotherapy for OCD or the initiation of cognitive-behavior therapy within the last 3 months; and (10) specific to the tACS and EEG procedures no metal implants in head, any implanted electronic devices, any skin sensitivity, color blindness or impaired vision despite correction, claustrophobia, and any history of epilepsy or neurological disorder.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes