Efficacy and Influencing Factors of ALIC-NAc Deep Brain Stimulation in Treatment-Refractory Obsessive-Compulsive Disorder

Recruiting now · Not applicable

Conditions studied: Obsessive - Compulsive Disorder

In brief

The goal of this clinical trial is to evaluate the efficacy and influencing factors of the combination of the anterior limb of internal capsule and nucleus accumbens (ALIC-NAc) deep brain stimulation (DBS) in patients with treatment-refractory obsessive-compulsive disorder (OCD). The main questions it aims to answer is: Does the timing of DBS activation (at 1, 2, or 3 months post-surgery) affect the reduction rate in Y-BOCS scores? Researchers will compare three groups-DBS activated at 1, 2, and 3 months post-surgery-to determine whether earlier or later stimulation leads to greater symptom improvement. Participants will: * Undergo surgical implantation of an intracranial neurostimulation system targeting ALIC-NAc * Be randomly assigned to one of three DBS activation timing groups * Receive regular clinical assessments over a 6-month follow-up period after activation

Key facts

Study ID

NCT07031544

Run by

Shanghai Mental Health Center

People needed

60

Starts

2024-12-14

Expected to finish

2027-03-31

Last updated by the study team

2025-07-03

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• aged 18-65 years old;
• a diagnosis of OCD based on The Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5);
• the Y-BOCS total score ≥ 25;
• met the criteria of treatment refractory. Treatment refractory is defined as failed a) Inadequate response or intolerance to at least three adequate trials of selective serotonin reuptake inhibitors (SSRIs), combined with at least two second-generation antipsychotics as augmentation agents.
• b) Inadequate response or intolerance to cognitive behavioral therapy (CBT) consisting of more than 12 sessions conducted concurrently with adequate dosed SSRIs treatment.

You may not qualify if…

• Presence of other psychiatric disorders such as organic mental disorders, paranoid personality disorder, or mental retardation.
• Individuals deemed by the investigator to be at significant risk of suicidal behavior based on clinical assessment.
• Presence of severe or unstable cardiovascular, respiratory, hepatic, renal, hematologic, endocrine, neurological, or other systemic diseases.
• History of organic brain disorders, traumatic brain injury, intractable epilepsy, or other neurological conditions.
• Clinically significant abnormalities in physical examination, laboratory tests, electrocardiogram, or imaging during screening or baseline that, in the investigator's judgment, make the individual unsuitable for the study.
• History of implantation of a cochlear implant, cardiac pacemaker, cardiac defibrillator, prior unilateral or bilateral implantation of similar devices, or other surgical procedures within the past six months that may affect study participation as judged by the investigator.
• Contraindications to DBS implantation or deemed unfit for surgery by the investigator.
• Confirmed HIV-positive status.
• Pregnant or breastfeeding women, women of childbearing potential with positive blood/urine HCG results at screening, those unable to use effective contraception during the study, or those planning to conceive within three months after study initiation.
• Participation in another drug or medical device clinical trial currently or within three months prior to screening.
• Any other condition deemed by the investigator to render the individual unsuitable for the study.

Where it is running

• The First Hospital of Hebei Medical University — Shijiazhuang, Hebei, China (enrolling)
• The Second Affiliated Hospital of Xinxiang Medical College — Xinxiang, Henan, China (enrolling)
• The First Affiliated Hospital of Nanchang University — Nanchang, Jiangxi, China (enrolling)
• The First Affiliated Hospital of Shanxi Medical University — Taiyuan, Shanxi, China (enrolling)
• the Third Hospital of Mianyang — Mianyang, Sichuan, China (enrolling)
• Shanghai Mental Health Center — Shanghai, China (enrolling)
• Huashan Hospital — Shanghai, China (enrolling)
• Tianjin Huanhu Hospital — Tianjin, China (enrolling)
• Tianjin Anding Hospital — Tianjing, China (enrolling)
• First Affiliated Hospital of Jinan University — Guangzhou, Guangdong, China (enrolling)

Full record on ClinicalTrials.gov

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