This study will compare the effect of three transcranial photobiomodulation (t-PBM) doses (high, middle, and low irradiance) to sham t-PBM on PFC CBF as assessed with fMRI (BOLD) in this multi-center, phase I, double-blinded, dose-ranging, controlled, crossover study of 30 subjects with MDD. All eligible participants will undergo four sessions of t-PBM during fMRI so that they experience irradiances of 50, 300 and 700 mW/cm2 as well as sham. The order of dose administration will be randomized and t-PBM will be administered with the LightForce® EXPi Deep Tissue Laser TherapyTM System, Transcranial PhotoBioModulation-1000 (tPBM-2.0).
The purpose of this research study is to determine if application of near infrared energy to the forehead can change blood flow in the brains of people with depression. Near infrared energy is like light but is not visible to the human eye. This research study will compare near infrared exposure with a placebo or sham procedure. The sham procedure will look and feel just like the near infrared procedure but won't include near infrared exposure.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
55
Delivers laser-generated Near-Infrared Radiation (NIR) to forehead at 3 doses of irradiance - High (770 mW/cm2), Middle (300 mW/cm2), and Low (50 mW/cm2).
Transcranial Photobiomodulator delivers sham irradiance dose of 0 mW/cm2.
Massachusetts General Hospital
Charlestown, Massachusetts, United States
New York University
New York, New York, United States
Nathan Kline Institute
Orangeburg, New York, United States
Percentage Change in Prefrontal Cortex (PFC) Cerebral Blood Flow (CBF) During High-Irradiance t-PBM
CBF is measured as Blood Oxygen Level Dependent (BOLD) signal on functional magnetic resonance imaging (fMRI). BOLD signal reflects changes in regional CBF that delineate regional activity. A positive BOLD signal marks an increase in regional blood flow, while a negative BOLD signal marks a decrease in regional blood flow. A positive percent change indicates that blood flow increased in the region of interest between scans, a negative percent change indicates blood flow decreased between scans. Approximately 60 minutes of fMRI data are recorded in the left and right dorsolateral prefrontal cortical regions of interest at each transcranial photobiomodulation (t-PBM) treatment visit, including: approximately 20 minutes prior to t-PBM administration, approximately 20 minutes coinciding with t-PBM administration, and approximately 20 minutes following t-PBM administration.
Time frame: 20 Minutes Pre-Intervention, 20 Minutes Post-Intervention (Total duration: 60 min); Up to Week 7
Percentage Change in Prefrontal Cortex (PFC) Cerebral Blood Flow (CBF) During Middle-Irradiance t-PBM
CBF is measured as Blood Oxygen Level Dependent (BOLD) signal on functional magnetic resonance imaging (fMRI). BOLD signal reflects changes in regional CBF that delineate regional activity. A positive BOLD signal marks an increase in regional blood flow, while a negative BOLD signal marks a decrease in regional blood flow. A positive percent change indicates that blood flow increased in the region of interest between scans, a negative percent change indicates blood flow decreased between scans. Approximately 60 minutes of fMRI data are recorded in the left and right dorsolateral prefrontal cortical regions of interest at each transcranial photobiomodulation (t-PBM) treatment visit, including: approximately 20 minutes prior to t-PBM administration, approximately 20 minutes coinciding with t-PBM administration, and approximately 20 minutes following t-PBM administration.
Time frame: 20 Minutes Pre-Intervention, 20 Minutes Post-Intervention (Total duration: 60 min); Up to Week 7
Percentage Change in Prefrontal Cortex (PFC) Cerebral Blood Flow (CBF) During Low-Irradiance t-PBM
CBF is measured as Blood Oxygen Level Dependent (BOLD) signal on functional magnetic resonance imaging (fMRI). BOLD signal reflects changes in regional CBF that delineate regional activity. A positive BOLD signal marks an increase in regional blood flow, while a negative BOLD signal marks a decrease in regional blood flow. A positive percent change indicates that blood flow increased in the region of interest between scans, a negative percent change indicates blood flow decreased between scans. Approximately 60 minutes of fMRI data are recorded in the left and right dorsolateral prefrontal cortical regions of interest at each transcranial photobiomodulation (t-PBM) treatment visit, including: approximately 20 minutes prior to t-PBM administration, approximately 20 minutes coinciding with t-PBM administration, and approximately 20 minutes following t-PBM administration.
Time frame: 20 Minutes Pre-Intervention, 20 Minutes Post-Intervention (Total duration: 60 min); Up to Week 7
Percentage Change in Prefrontal Cortex (PFC) Cerebral Blood Flow (CBF) During Sham Treatment
CBF is measured as Blood Oxygen Level Dependent (BOLD) signal on functional magnetic resonance imaging (fMRI). BOLD signal reflects changes in regional CBF that delineate regional activity. A positive BOLD signal marks an increase in regional blood flow, while a negative BOLD signal marks a decrease in regional blood flow. A positive percent change indicates that blood flow increased in the region of interest between scans, a negative percent change indicates blood flow decreased between scans. Approximately 60 minutes of fMRI data are recorded in the left and right dorsolateral prefrontal cortical regions of interest at each transcranial photobiomodulation (t-PBM) treatment visit, including: approximately 20 minutes prior to t-PBM administration, approximately 20 minutes coinciding with t-PBM administration, and approximately 20 minutes following t-PBM administration.
Time frame: 20 Minutes Pre-Intervention, 20 Minutes Post-Intervention (Total duration: 60 min); Up to Week 7
Change in Brain Temperature During High-Irradiance t-PBM
Changes computed using data recorded with magnetic resonance (MR) thermometry scans taken immediately before and after the 20-minute transcranial photobiomodulation (t-PBM) treatment administration.
Time frame: Immediately Pre-Intervention, Immediately Post-Intervention; Up to Week 7
Change in Brain Temperature During Middle-Irradiance t-PBM
Changes computed using data recorded with magnetic resonance (MR) thermometry scans taken immediately before and after the 20-minute transcranial photobiomodulation (t-PBM) treatment administration.
Time frame: Immediately Pre-Intervention, Immediately Post-Intervention; Up to Week 7
Change in Brain Temperature During Low-Irradiance t-PBM
Changes computed using data recorded with magnetic resonance (MR) thermometry scans taken immediately before and after the 20-minute transcranial photobiomodulation (t-PBM) treatment administration.
Time frame: Immediately Pre-Intervention, Immediately Post-Intervention; Up to Week 7
Change in Brain Temperature During Sham Treatment
Changes computed using data recorded with magnetic resonance (MR) thermometry scans taken immediately before and after the 20-minute transcranial photobiomodulation (t-PBM) treatment administration.
Time frame: Immediately Pre-Intervention, Immediately Post-Intervention; Up to Week 7
Change in Columbia Suicide Severity Rating Scale (C-SSRS) Suicide Ideation Score
C-SSRS systematically tracks suicidal ideation and behavior. The total score range is 0 (no ideation is present) to 5 (active suicidal ideation with specific plan and intent). The higher the score, the greater one's suicidal ideation. Any score greater than 0 is important and may indicate the need for mental health intervention.
Time frame: Baseline, Follow-up (Week 8)
Systematic Assessment for Treatment Emergent Events (SAFTEE) Score Prior to First Treatment
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55-item self-assessment measuring severity levels of side effects. Participants rank each item on a 4-point Likert scale ranging from 0-3, where: 0 = None; 1 = Mild; 2 = Moderate; and 3 = Severe. The total score is the sum of responses. Scores range from 0 to 165; higher scores indicate greater severity of side effects
Time frame: Baseline
Systematic Assessment for Treatment Emergent Events (SAFTEE) Score Following High-Irradiance t-PBM
55-item self-assessment measuring severity levels of side effects. Participants rank each item on a 4-point Likert scale ranging from 0-3, where: 0 = None; 1 = Mild; 2 = Moderate; and 3 = Severe. The total score is the sum of responses. Scores range from 0 to 165; higher scores indicate greater severity of side effects
Time frame: Immediately Post-Intervention, up to Week 7 in total
Systematic Assessment for Treatment Emergent Events (SAFTEE) Score Following Middle-Irradiance t-PBM
55-item self-assessment measuring severity levels of side effects. Participants rank each item on a 4-point Likert scale ranging from 0-3, where: 0 = None; 1 = Mild; 2 = Moderate; and 3 = Severe. The total score is the sum of responses. Scores range from 0 to 165; higher scores indicate greater severity of side effects
Time frame: Immediately Post-Intervention, up to Week 7 in total
Systematic Assessment for Treatment Emergent Events (SAFTEE) Score Following Low-Irradiance t-PBM
55-item self-assessment measuring severity levels of side effects. Participants rank each item on a 4-point Likert scale ranging from 0-3, where: 0 = None; 1 = Mild; 2 = Moderate; and 3 = Severe. The total score is the sum of responses. Scores range from 0 to 165; higher scores indicate greater severity of side effects
Time frame: Immediately Post-Intervention, up to Week 7 in total
Systematic Assessment for Treatment Emergent Events (SAFTEE) Score Following Sham Treatment
55-item self-assessment measuring severity levels of side effects. Participants rank each item on a 4-point Likert scale ranging from 0-3, where: 0 = None; 1 = Mild; 2 = Moderate; and 3 = Severe. The total score is the sum of responses. Scores range from 0 to 165; higher scores indicate greater severity of side effects
Time frame: Immediately Post-Intervention, up to Week 7 in total
t-PBM Self-Report Questionnaire (TSRQ) Score Following High-Irradiance t-PBM
3-item self-report assessment of potential inconveniences and discomforts from the transcranial photobiomodulation (t-PBM). Participants rank each item on various Likert scales. The total score is the sum of responses. Total score ranges from 3-18; higher scores indicate greater perceived inconveniences and discomforts associated with t-PBM use.
Time frame: Immediately Post-Intervention, up to Week 7 in total
t-PBM Self-Report Questionnaire (TSRQ) Score Following Middle-Irradiance t-PBM
3-item self-report assessment of potential inconveniences and discomforts from the transcranial photobiomodulation (t-PBM). Participants rank each item on various Likert scales. The total score is the sum of responses. Total score ranges from 3-18; higher scores indicate greater perceived inconveniences and discomforts associated with t-PBM use.
Time frame: Immediately Post-Intervention, up to Week 7 in total
t-PBM Self-Report Questionnaire (TSRQ) Score Following Low-Irradiance t-PBM
3-item self-report assessment of potential inconveniences and discomforts from the transcranial photobiomodulation (t-PBM). Participants rank each item on various Likert scales. The total score is the sum of responses. Total score ranges from 3-18; higher scores indicate greater perceived inconveniences and discomforts associated with t-PBM use.
Time frame: Immediately Post-Intervention, up to Week 7 in total
t-PBM Self-Report Questionnaire (TSRQ) Score Following Sham Treatment
3-item self-report assessment of potential inconveniences and discomforts from the transcranial photobiomodulation (t-PBM). Participants rank each item on various Likert scales. The total score is the sum of responses. Total score ranges from 3-18; higher scores indicate greater perceived inconveniences and discomforts associated with t-PBM use.
Time frame: Immediately Post-Intervention, up to Week 7 in total