NCT06784388

Brief Summary

The goal of this clinical trial is to optimize the target brain areas for deep brain stimulation (DBS) for depression based on personalized brain imaging and stereo-electroencephalography(SEEG), to administer long-term DBS treatment in the target brain areas, to assess the effectiveness and safety of DBS for refractory depression and to validate the method of personalized optimization of DBS targets. The main questions it aims to answer are:

  1. 1.Where is the optimal DBS target brain region for each patient?
  2. 2.What are the optimal DBS parameters for each patient ?
  3. 3.What are the neural biomarkers of depression symptoms for each patient?
  4. 4.Are the optimized DBS strategies effective in treating refractory depression?

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for early_phase_1

Timeline
33mo left

Started Jan 2025

Longer than P75 for early_phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress34%
Jan 2025Dec 2028

Study Start

First participant enrolled

January 5, 2025

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

January 14, 2025

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 20, 2025

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2028

Last Updated

April 27, 2026

Status Verified

April 1, 2026

Enrollment Period

3 years

First QC Date

January 14, 2025

Last Update Submit

April 22, 2026

Conditions

Keywords

Treatment-resistant depression (TRD)DBSstimulation targetstimulation parametersneural biomarker

Outcome Measures

Primary Outcomes (2)

  • Change in Hamilton Rating Scale for Depression (HAMD) score during the DBS treatment phase relative to preoperative baseline

    Improvement is defined as a 25-49% reduction in Hamilton Rating Scale for Depression (HAMD) score relative to the preoperative baseline; response is defined as a ≥50% reduction in HAMD score relative to the preoperative baseline; and remission is defined as a HAMD score ≤8.

    at baseline and after 442 day

  • Changes in HAMD scores during the efficacy observation phase after DBS shutdown

    Rebound is defined as a HAMD ≥18 in the subsequent follow-up period if the patient has an initial assessment of HAMD ≤8 in the efficacy observation phase after DBS shutdown, and rebound is defined as a HAMD score more than 2 times the initial assessment or 20 in the subsequent follow-up period if the patient has an initial assessment of HAMD \>8 in that phase.

    Two months after 442 days

Secondary Outcomes (15)

  • the score of Montgomery-Asberg Depression Rating Scale (MADRS)

    Every 2 weeks between day 21 and day 442

  • the score of multi-lingual Hypomania Check List(C-SSRS)

    Every 2 weeks between day 21 and day 442

  • the score of Hamilton Anxiety Scale(HAMA)

    Every 2 weeks between day 21 and day 442

  • the score of the Oxford Depression Questionnaire(ODQ)

    Every 2 weeks between day 21 and day 442

  • the score of THINC-integrated tool(THINC-it)

    Every 2 weeks between day 21 and day 442

  • +10 more secondary outcomes

Study Arms (1)

Depression

EXPERIMENTAL
Device: Deep Brain Stimulation(DBS)Drug: Esketamine

Interventions

SEEG intraoperative experiment: patients will be implanted with microelectrodes and connected to an electrophysiological recorder under local anesthesia. Intraoperative neurophysiological baseline will be recorded for 5 minutes, and esketamine will be injected intravenously at a dose of 0.5 mg/kg, and neurophysiological recordings will be continued for 15 minutes to observe the neuronal electrophysiological changes in various brain regions and target points.

Depression

During the DBS treatment phase, the DBS device will apply electrical stimulation to the patient's target brain regions using a specific strategy, and if the efficacy of this phase is not satisfactory, electrical stimulation will continue to be applied during the efficacy observation phase after DBS shutdown.

Depression

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • A psychiatrist-confirmed diagnosis of major depressive disorder in accordance with the Diagnostic And Statistical Manual Of Mental Disorders.5th Ed (DSM-V);
  • A psychiatric examination by two trained psychiatrists and a diagnosis consistent with the DSM-V;
  • A history of depression of at least 12 months duration in depressed patients (including MECT) who have failed to respond to a full dose and course of treatment with 2 or more antidepressants of different mechanisms;
  • A 17-item score on the HAMD scale ⩾ 20 at initial screening;
  • A score of ≤ 50 on the Gross Assessment of Functioning (GAF) scale;
  • The patient himself/herself or legal guardian was able to fully understand the therapy and agreed to enroll after signing an informed consent form.

You may not qualify if:

  • Persons with severe or unstable cardiac, hepatic, renal, endocrine, hematologic, and other medical disorders and co-morbidities with psychotic symptoms, including personality disorders diagnosed by history, questioning, and clinical examination;
  • Persons with psychiatric disorders other than depression (except generalized anxiety);
  • Persons with a history of substance abuse within 12 months; persons with a previous history of epilepsy, and persons with febrile convulsions in childhood;
  • Patients with a history of suicide attempts within the past 6 months or more than 2 suicide attempts within the past 2 years;
  • Women who are breastfeeding, pregnant, and patients who are pregnant or intend to become pregnant during the clinical study;
  • Contraindications to DBS surgery and MRI;
  • Years of education less than or equal to 9 years;
  • Patients who are involuntarily hospitalized.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Second Affiliated Hospital of Zhejiang University School of Medicine

Hangzhou, Zhejiang, 310000, China

RECRUITING

Related Publications (2)

  • Scangos KW, Khambhati AN, Daly PM, Makhoul GS, Sugrue LP, Zamanian H, Liu TX, Rao VR, Sellers KK, Dawes HE, Starr PA, Krystal AD, Chang EF. Closed-loop neuromodulation in an individual with treatment-resistant depression. Nat Med. 2021 Oct;27(10):1696-1700. doi: 10.1038/s41591-021-01480-w. Epub 2021 Oct 4.

  • Alagapan S, Choi KS, Heisig S, Riva-Posse P, Crowell A, Tiruvadi V, Obatusin M, Veerakumar A, Waters AC, Gross RE, Quinn S, Denison L, O'Shaughnessy M, Connor M, Canal G, Cha J, Hershenberg R, Nauvel T, Isbaine F, Afzal MF, Figee M, Kopell BH, Butera R, Mayberg HS, Rozell CJ. Cingulate dynamics track depression recovery with deep brain stimulation. Nature. 2023 Oct;622(7981):130-138. doi: 10.1038/s41586-023-06541-3. Epub 2023 Sep 20.

MeSH Terms

Conditions

Depressive Disorder, Treatment-Resistant

Interventions

Deep Brain StimulationEsketamine

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsSurgical Procedures, Operative

Central Study Contacts

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 14, 2025

First Posted

January 20, 2025

Study Start

January 5, 2025

Primary Completion (Estimated)

December 30, 2027

Study Completion (Estimated)

December 30, 2028

Last Updated

April 27, 2026

Record last verified: 2026-04

Locations