OCD Clinical Trial - Personalized DBS for OCD Guided by

Status Recruiting

Clinical Trial Summary

This is a double-blinded, randomized, crossover study design for SEEG-guided 4-lead DBS for treatment-refractory OCD, followed by open label stimulation for an additional 6 months. The study will be conducted in 3 stages: Stage 1 will consist of SEEG brain mapping and optimization of stimulation parameters. Stage 2 will consist of 4-lead DBS surgery with bilateral IPGs and further optimization of stimulation parameters. Stage 3 will be randomized, crossover treatment, followed by open label treatment.

Clinical Trial Description

The study consists of 3 stages. In Stage 1, the investigators will implant SEEG depth electrodes into various components of the CSTC OCD circuit such as the OFC, ACC, VC/VS, BNST, and amSTN. The investigators will perform extensive stimulation mapping to identify anatomical sites and stimulation parameters that improve symptoms. The investigators also intend to record abnormal local field potential (LFP) activity during periods of varying intensities of spontaneous and provoked OCD symptom severity and will determine if therapeutic stimulation can normalize abnormal neural activity associated with OCD symptoms. In Stage 2, the investigators will use the information obtained during the SEEG Invasive Monitoring phase (Stage 1) to inform the placement of 4 DBS leads using the Medtronic Percept Implantable Pulse Generator system. DBS leads will be targeted to regions identified, in Stage 1, as being associated with symptomatic improvement and OCD-related neural activity. During this phase, the investigators will perform DBS programming to systematically change stimulation parameters to find parameters that optimally relieve patients' OCD symptoms. In Stage 3, the investigators will then carry out a randomized, controlled, crossover trial to assess the safety, feasibility, and initial efficacy of our SEEG-guided DBS approach for treatment-refractory OCD. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06347978
Study type	Interventional
Source	University of California, San Francisco
Contact	Gen Basich-Pease, BS
Phone	415-885-7707
Email	ocdresearch@ucsf.edu
Status	Recruiting
Phase	N/A
Start date	May 2024
Completion date	May 2028

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Personalized DBS for OCD Guided by Stereoencephalography Mapping

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms