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103 active trials for Obsessive Compulsive Disorder

Improving Attentional and Cognitive Control in the Psychological Treatment of Intrusive Thoughts

The investigators are conducting this study to learn more about the cognitive and attentional processes among individuals with three types of repetitive negative thinking (RNT): mental rituals (as seen in obsessive compulsive disorder, OCD), worries (as seen in generalized anxiety disorder, GAD), and ruminations (as seen in major depressive disorder, MDD). Specifically, the investigators are studying whether psychological treatment can help people with RNT who have trouble stopping unwanted thoughts and shifting their attention.

Start: April 2021

Intervention Through EMDR and CBT With Women Victim of Childhood Sexual Abuse. A Randomized Controlled Trial.

This study evaluates the effectiveness of two types of therapy for the treatment of sexual abuse psychological impact on a sample of Spanish women. The participants will receive first Trauma-Focused Cognitive Behavioral Therapy and Eye Movement Desensitization and Reprocessing treatments in order to observe the impact on symptoms of Posttraumatic Stress Disorder, somatization, obsessive-compulsive symptoms, anxiety, aggressiveness and dissociate symptoms.

Start: April 2021

Neurofeedback for Obsessive-Compulsive Disorder (OCD)

The aim of this study is to train patients with obsessive-compulsive disorder to control a region of their brain that has been associated with their symptoms. Patients in the experimental group will be given direct feedback regarding activity in this brain area while they are undergoing functional magnetic resonance imaging (fMRI) scanning, and will try to learn to control activity in the region during these feedback sessions. A separate group of patients will be given a control form of feedback that we do not believe can have clinical benefits. Our primary hypothesis is that the neurofeedback training will reduce OCD symptoms more than the control feedback.

Start: July 2015

Efficacy of Nitrous Oxide in OCD: Pilot Study

This study investigates whether the commonly used and well-tolerated inhaled anesthetic nitrous oxide can rapidly improve symptoms of OCD.

Start: April 2021

Caloric Vestibular Stimulation for Modulation of Insight in Obsessive-Compulsive Spectrum Disorders

This study investigates whether caloric vestibular stimulation can modulate a measure of insight in obsessive-compulsive spectrum disorders.

Start: August 2021

Using Online Delivered Therapy and Brain Imaging to Better Understand OCD

This study will implement an e-CBT program for OCD and observe its effects on brain activation levels using functional magnetic resonance imaging (fMRI). It is hypothesized that brain activation levels in the basal ganglia and frontal cortex will decrease following treatment. Individuals with OCD will be offered a 16-week e-CBT program with ERP mirroring in-person CBT content that will be administered through a secure online platform. Efficacy of treatment will be evaluated using clinically validated symptomology questionnaires at baseline, week 8, week 16, and at a 6-month follow-up. Using fMRI at baseline and post-treatment, brain activation levels will be assessed at resting state, and while exposed to anxiety-inducing images (i.e., dirty dishes if cleanliness is an obsession). The effects of treatment on brain activation levels and the correlation between symptom changes and activation levels will be analyzed.

Start: January 2021

Neuroinflammation in Patients With OCD

The goal of this study is to examine whether measurements of inflammation from brain scanning and blood tests can predict how much benefit patients with obsessive-compulsive disorder (OCD) will have from treatment with an anti-inflammatory medication, celecoxib, when adding to ongoing medication-based treatment for OCD.

Start: April 2021

Digital Health Interventions for Obsessive Compulsive Disorder (OCD)

The investigators are testing two digital health interventions for obsessive compulsive disorder (OCD). The investigators hope that these digital health programs will increase access to treatment for OCD.

Start: June 2021

Combined Cortical/Subcortical Recording and Stimulation as a Circuit-Oriented Treatment for Obsessive-Compulsive Disorder

This study involves the use of the Medtronic PC+S deep brain stimulation for the treatment of intractable OCD.

Start: October 2016

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Obsessive-Compulsive Disorder

This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records.

Start: March 2020

ON/OFF Stimulation and Impulsivity in Patients With Deep Brain Stimulators

The investigators propose a test of causality by examining a cohort of patients undergoing deep brain stimulation (DBS) within the ventral striatum. The investigators will examine behavior on and off stimulation across a range of tasks that index different forms of impulsivity. Patients will be studied in both the ON and OFF state - that is, they will be tested during active deep brain stimulation and 30 min to 1 hour after stimulation has been stopped (order of state will be counterbalanced across subjects). The investigators specific aim is to test the hypothesis that enhancing ventral striatal signaling (i.e. ON-state DBS) will cause more impulsive patterns of behavior across several impulsivity tasks. The investigators predict that ventral striatal DBS will increase stop-signal reaction time on the stop-signal task and commission errors on the Go/NoGo task, and increase delay aversion in a delay discounting paradigm.

Start: February 2012

Patient-specific, Effective, and Rational Functional Connectivity Targeting for DBS in OCD

The study aims to improve patient-specific anatomical targeting of the Deep Brain Stimulation for the treatment of intractable OCD.

Start: September 2017

ON/OFF Stimulation and Reward Motivation in Patients With Deep Brain Stimulators

We propose to study approach/avoidance behavior as measured by the Approach Avoidance task in 20 epilepsy patients undergoing implementation of depth electrodes for seizure monitoring in the Epilepsy Monitoring Unit at MGH. We will also study the effects of VC/VS electrical stimulation on approach-avoidance conflict in 20 adult patients who have undergone DBS implantation for severe MDD and/or OCD. There are 100-200 patients in the world with DBS electrodes in the VC/VS, and our research team cares for more than any other institution. Both participant groups will be assessed with respect to reward-aversion decision conflict using the task. The task will be performed with concurrent EEG recordings in DBS patients, and with continuous recording through our invasive neurophysiology rig in EMU subjects.

Start: January 2021

Transcranial Direct Current Stimulation (tDCS) in Pediatric Obsessive Compulsive Disorder (OCD)

In this study, the investigators aim to understand the role of transcranial direct current stimulation (tDCS) in modulating aberrant neurocognitive processes implicated in pediatric patients with obsessive compulsive disorder (OCD).

Start: January 2021

Transcranial Magnetic Stimulation (TMS) in Obsessive Compulsive Disorder (OCD): Mechanisms and Biomarkers

The purpose of this study is to test the efficacy of 1-Hz repetitive transcranial magnetic stimulation (TMS) over the pre-supplementary motor area as a treatment for obsessive compulsive disorder. Additionally, this study aims to identify the mechanisms of action of TMS and potential biomarkers and predictors of treatment response.

Start: May 2015

Modulating Prefrontal Circuits Underlying Behavioral Flexibility in OCD: A TMS Study

This study investigates whether slow-frequency repetitive transcranial magnetic stimulation targeting frontal pole can acutely modulate brain circuits which show abnormal functioning during behavioral flexibility in obsessive-compulsive disorder, as well as performance on a behavioral task.

Start: November 2019

Phase II Using Summit RC+S System With ECoG Paddles

This research study is for participants that have been diagnosed with intractable Obsessive -compulsive disorder (OCD). OCD is a persistent and oftentimes disabling disorder marked by unwanted and distressing thoughts (obsessions) and irresistible repetitive behaviors. OCD affects 2-3% of the US population, and is responsible for substantial functional impairment and increased risk of early death. The only established first-line treatments for OCD are cognitive-behavioral therapy (CBT) with exposure and response prevention and certain medications. About 30-40% of patients fail to respond and few experience complete symptom resolution. Up to 25% of patients have difficulty tolerating CBT and the risk of relapse after therapies remains large. For the most severe cases, neurosurgery (surgery in the brain), has long been the option of last resort. In this study the investigators want develop an adaptive Deep Brain Stimulation (aDBS) system to use in subjects with intractable (hard to control) OCD. Deep brain stimulation (DBS) remains investigational for OCD patients and is not considered standard therapy. DBS involves the surgical implantation of leads and electrodes into specific areas of the brain, which are thought to influence the disease. A pack implanted in the chest, called the neurotransmitter, keeps the electrical current coursing to the brain through a wire that connects the neurotransmitter and electrodes. It is believed DBS may restore balance to dysfunctional brain circuitry implicated in OCD. The goal of this study is to enhance current approaches to DBS targeting in the brain and to use a novel approach to find a better and more reliable system for OCD treatment. This current research protocol will focus on the completion of Phase II which will implant the RC+S system with ECoG paddles in 5 subjects.

Start: June 2021

Deep Brain Stimulation (DBS) for the Treatment of Refractory Obsessive-compulsive Disorder (OCD)

Deep brain stimulation for treatment resistant deep brain stimulation

Start: September 2019

Neurobiology of Sensory Phenomena in Obsessive-Compulsive Disorder

The Research Domain Criteria (RDoC) approach seeks to address the neurobiological mechanisms of sensory symptoms in patients with obsessive-compulsive disorder (OCD) by investigating dimensional components of behavior that more closely align with brain circuitry. This project focuses on the dimensional symptom of sensory phenomena (SP), which are uncomfortable or aversive sensory experiences that drive repetitive behaviors in OCD, including "not just right" sensations, physical urges, and sensations of disgust. SP are very prevalent, occurring in 60-80% of OCD patients, and experienced as highly distressing. Unfortunately, SP are not well addressed by standard treatment approaches, which may be in part because their neurobiological mechanisms are not well understood. This project builds on our preliminary data to (1) investigate the neural mechanisms of SP in large OCD cohort showing the full range of SP severity and (2) probe for familial risk markers in unaffected siblings of patients. For Aim 1, SP will be measured in 100 OCD patients using the Sensory Phenomena Scale. Diffusion and fMRI data will be acquired during rest and fMRI tasks. In order to identify familial risk markers, Aim 2 will compare sensory phenomena and neural circuitry between OCD probands, 50 unaffected biological siblings of OCD patients, and 50 unrelated healthy controls without a family history of Axis 1 disorders.

Start: May 2018

ESTOCMA: Mental Health Application for Enhancing Mental Health Literacy About Obsessive-compulsive Disorder and Reduce Stigma

The aim of the study is to analyze the efficacy of a mobile health application (app) designed to increase mental health literacy, help seeking attitudes and reduce stigma associated with obsessive-compulsive disorder. A randomized controlled trial with crossover design will be carried out in non-clinical population to assess pre-post changes in levels mental health literacy, help seeking attitudes and stigma through app completion (an estimation of 10 days). Moreover, the stability of the changes will be tested at 3 and 6 months. Participants from community will be randomly assigned to one of two conditions: undertaking immediate-use or delayed use. We hypothesized that after using the app, participants will have a greater knowledge about obsessive-compulsive disorder, will be more prone to ask for help in case of showing OCD symptoms, and will show lower stigma attitudes and social distance.

Start: May 2021