About this trial
This observational, longitudinal, multi-cohort study aims to evaluate functional brain activity in adults undergoing treatment for Major Depressive Disorder (MDD) at participating clinical sites. A separate cohort of healthy adults will be enrolled as a control group. All data collected in this study are for research purposes only and will not influence clinical decision-making or treatment plans.
This study will use TD-fNIRS to measure hemodynamic brain responses at rest and/or during tasks in patients receiving accelerated transcranial magnetic stimulation (TMS). Imaging will occur at multiple timepoints (pre-treatment, post-treatment, and follow-ups). Healthy control participants will complete similar measurements at one visit, with the option for a follow-up visit. The primary objectives are to assess feasibility, characterize brain activity patterns, and explore potential biomarkers associated with treatment response.
Eligibility criteria
Qualifiers
Adults aged 18-75 at the time of enrollment
Primary diagnosis of MDD as defined by the DSM-5
Determined by the clinic to be eligible for accelerated rTMS treatment and agrees to receive accelerated rTMS treatment
Agrees to start accelerated rTMS treatment in conjunction with study participation to capture baseline measurements
Disqualifiers
Pregnant or may become pregnant during the treatment course
Unable or unwilling to wear the fNIRS headset
Has had electroconvulsive therapy (ECT) in the past 3 months
Major medical illnesses including neurological and psychiatric conditions such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, epilepsy, schizophrenia, or stroke.
Trial design
Treatments tested in this trial
- fNIRS measurement
Treatment groups
Sponsors and collaborators
Kernel
Lead sponsor
Acacia Clinics
Collaborator