NCT01983904

Brief Summary

The purpose of this study is to examine the effects of sub-callosal cingulate (SCC) deep brain stimulation (DBS) in patients with treatment resistant depression (TRD). The working hypotheses are that long pulse-width DBS applied to the SCC region will lead to improvements in TRD patients, and specific neuroimaging biomarkers will correlate with response to DBS; the functional recovery will be enhanced with concurrent cognitive behavioural therapy (CBT).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
22

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Aug 2013

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

August 1, 2013

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

November 7, 2013

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 14, 2013

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2018

Completed
Last Updated

April 18, 2019

Status Verified

April 1, 2019

Enrollment Period

4.3 years

First QC Date

November 7, 2013

Last Update Submit

April 16, 2019

Conditions

Keywords

Major depressive disorder (MDD)Bi-polar disorder (BP)

Outcome Measures

Primary Outcomes (1)

  • Change in Hamilton Depression Rating Scale

    change in HDRS from baseline before surgery: rates of remission (defined as an HDRS score \<8 at 6 and 12 months) and response (defined as \>50% reduction in HDRS)

    6 and 12 months post-operatively

Secondary Outcomes (2)

  • Change from baseline on Illness Density Index, Montgomery-Asberg Depression Rating Scale and Hamilton Anxiety Scale, Positive and Negative Affect Scale, Clinical Global Impression of Change, GAF< SAs, NAS, Q-LES-Q-SF & neuropsychological tests

    6 and 12 months post operatively

  • Post Cognitive Behavioural Therapy Scores

    15 months post operatively

Study Arms (2)

Long Pulse Width

EXPERIMENTAL

deep brain stimulation with short \& long pulse width

Device: deep brain stimulation with short & long pulse width

Short Pulse Width

EXPERIMENTAL

deep brain stimulation with short \& long pulse width

Device: deep brain stimulation with short & long pulse width

Interventions

surgical implantation for bilateral electrodes and stimulation using short and long pulse width

Long Pulse WidthShort Pulse Width

Eligibility Criteria

Age20 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age 20-70
  • diagnosis of major depressive (MDD)or bipolar disorder(BP)determined independently by 2 study psychiatrists
  • current major depressive episode of \>1 year duration, treatment-resistant (meaning failure to respond to 4 different classes of antidepressants, including augmentation or combination strategies with lithium, atypical antipsychotics, anticonvulsants, antidepressants, evidence-based psychotherapy, CBT, or electroconvulsive treatment despite adequate dosage, duration and compliance)
  • minimum score of 20 (out of 52) on the 17 item Hamilton Depression Rating Scale (HDRS)
  • resident of Alberta, Canada, covered by Alberta Health

You may not qualify if:

  • other Axis I psychiatric disorders including schizophrenia, psychosis, active suicidal ideation over previous 6 months
  • cerebrovascular risk factors, previous stroke, head injury and neurodegenerative disorders, pregnancy, medical and general contraindications for DBS surgery (e.g. cardiac pacemaker/defibrillator)
  • age \>70
  • diabetes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Calgary & Alberta Health Services, Foothills Medical Centre

Calgary, Alberta, T2N 4Z6, Canada

Location

Related Publications (2)

  • Ramasubbu R, Brown EC, Mouches P, Moore JA, Clark DL, Molnar CP, Kiss ZHT, Forkert ND. Multimodal imaging measures in the prediction of clinical response to deep brain stimulation for refractory depression: A machine learning approach. World J Biol Psychiatry. 2024 Mar;25(3):175-187. doi: 10.1080/15622975.2023.2300795. Epub 2024 Jan 17.

  • Ramasubbu R, Clark DL, Golding S, Dobson KS, Mackie A, Haffenden A, Kiss ZH. Long versus short pulse width subcallosal cingulate stimulation for treatment-resistant depression: a randomised, double-blind, crossover trial. Lancet Psychiatry. 2020 Jan;7(1):29-40. doi: 10.1016/S2215-0366(19)30415-8.

MeSH Terms

Conditions

Depressive Disorder, Treatment-ResistantDepressive Disorder, MajorBipolar Disorder

Interventions

Deep Brain Stimulation

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental DisordersBipolar and Related Disorders

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsSurgical Procedures, Operative

Study Officials

  • Zelma H Kiss, MD PhDFRCSC

    University of Calgary, Department of Clinical Neurosciences

    PRINCIPAL INVESTIGATOR
  • Rajamannar Ramasubbu, MD MRCP FRCP

    University of Calgary, Department of Psychiatry

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, Neurosurgery; Director Clinician Investigator Program

Study Record Dates

First Submitted

November 7, 2013

First Posted

November 14, 2013

Study Start

August 1, 2013

Primary Completion

December 1, 2017

Study Completion

March 1, 2018

Last Updated

April 18, 2019

Record last verified: 2019-04

Locations