NCT06423430 · Abbott Medical Devices
Treatment ResistAnt Depression Subcallosal CingulatE Network DBS (TRANSCEND)
(TRANSCEND)
What this study is about
The goal of this clinical trial is to evaluate the effectiveness and safety of bilateral stimulation of the subcallosal cingulate white matter (SCCwm) using Deep Brain Stimulation (DBS) as an adjunctive treatment of non-psychotic unipolar Major Depressive Disorder (MDD) in adults.
View original scientific description
The goal of this clinical trial is to evaluate the effectiveness and safety of bilateral stimulation of the subcallosal cingulate white matter (SCCwm) using Deep Brain Stimulation (DBS) as an adjunctive treatment of non-psychotic unipolar Major Depressive Disorder (MDD) in adults.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- The patient must be diagnosed with non-psychotic unipolar Major Depressive Disorder.
- The patient must be in a major depressive episode for ≥12 months or have had at least 3 lifetime depressive episodes.
- The patient has tried and failed a minimum of four different types of antidepressant treatments as measured by a tool designed for this purpose.
- Depression medication and treatment regimen must be stable for a minimum of 4 weeks before the first baseline visit
Exclusion criteria
- Pregnant or those who plan to become pregnant during study
- Presence of other anatomic or comorbid conditions, or other medical, social, or psychological conditions that could limit participation in the study or interfere with adherence to the study protocol.
- Current or lifetime history of psychotic features in any Major Depressive Episode.
- Has an intracranial Central Nervous System disease that impairs motor, sensory or cognitive function or that requires intermittent or chronic medication.
- Significant acute suicide risk.
- Diagnosis of Substance Use Disorder or Alcohol Use Disorder without sustained remission (12 months or longer).
- Current and ongoing use of neurostimulation treatment that may interfere with DBS therapy/system.
- Treatment with another investigational device or investigational drugs.
Where
- Birmingham, Alabama
- Los Angeles, California
- Sacramento, California
- Tampa, Florida
- Atlanta, Georgia
- Chicago, Illinois
- Indianapolis, Indiana
- Boston, Massachusetts
- Minneapolis, Minnesota
- Rochester, Minnesota
- St Louis, Missouri
- New Brunswick, New Jersey
And 9 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 29, 2026 · Source of record for eligibility and locations