The purpose of this study is to assess the impact of music on patients receiving a course of intravenous (IV) ketamine for treatment-resistant depression (TRD), both unipolar and bipolar. The primary outcome is changes in in systolic blood pressure throughout each 40-minute infusion. Secondary outcomes include repeated measures of mood, anxiety, suicidality, and psychological/physical pain. Aspects of the treatment experience, with and without music, will also be explored.
Depression is the first cause of disability worldwide, and approximately 1 in 3 patients will fail to respond to current treatments. Intravenous (IV) low-dose ketamine has remarkable efficacy in even the most treatment-resistant depression (here defined as failure to at least two adequate trials of Level 1-evidence psychiatric medications), inducing remission in 25-50%. Over 100 randomized clinical trials (RCTs) show that music can mitigate hemodynamic and psychological stress caused by even highly invasive medical procedures. Though never studied, music may similarly improve ketamine tolerability. In this randomized, single-blind (assessors will not know whether participants receive music or not) single-center trial, 20 participants with TRD will receive 1) curated music or 2) no music during their course of 6 IV ketamine treatments (0.50mg/kg bodyweight) over 4 weeks. The primary aim is to compare changes in systolic blood pressure from the beginning to the end (40 minutes, peak plasma concentration) of each infusion between groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
32
Music will be provided via headphones during all 6 ketamine treatments, beginning at the commencement of each infusion and ending 55 minutes later. On the day of each infusion, before the treatment begins, clinicians will discuss music choices with participants in order to select amongst one of several options that have been designed for this purpose (length, genre, intensity, etc.).
Jewish General Hospital
Montreal, Quebec, Canada
Douglas Mental Health University Institute
Montreal, Quebec, Canada
Changes in Systolic Blood Pressure
For the primary outcome data analysis, we will adopt the generalized linear model (GLM) to investigate the change in systolic blood pressure (SBP) at 40 minutes versus at 0 minutes between intervention and control groups. Specifically, we treat the difference between the average of the triplicate SBP measurements (measured by a calibrated Welch Allyn Blood Pressure Device at 0 minutes and the average of the triplicate SBP measurements at 40 minutes at each infusion as the outcomes in the GLM, adjusting for covariates such as intervention, age and sex. The generalized estimating equation (GEE) technique is proposed to estimate the regression coefficients, and the corresponding variances are estimated by the sandwich estimators.
Time frame: From 0 to 40 minutes of each infusion.
Change From Baseline in MADRS Total Score to Last Treatment
The Montgomery-Åsberg Depression Rating Scale is a 10-item, clinician-rated scale to rate the severity of the depressive symptoms. Each item is scored from 0 (item's symptoms not present) to 6 (item's symptoms are severe). The total possible score is 60. Higher scores indicate greater severity.
Time frame: Baseline, Day 23
Change From Baseline in MADRS Total Score to Follow-up
The Montgomery-Åsberg Depression Rating Scale is a 10-item, clinician-rated scale to rate the severity of the depressive symptoms. Each item is scored from 0 (item's symptoms not present) to 6 (item's symptoms are severe). The total possible score is 60. Higher scores indicate greater severity.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Beck Depression Inventory (BDI-II) Total Score to Last Treatment
The Beck Depression Inventory Scale is a 21-item, patient-rated scale to rate the severity of the depressive symptoms. Each item is scored from 0 (item's symptoms not present) to 3 (item's symptoms are severe). The total possible score is 63. Higher scores indicate greater severity.
Time frame: Baseline, Day 23
Change From Baseline in Beck Depression Inventory (BDI-II) Total Score to Follow-up
The Beck Depression Inventory Scale is a 21-item, patient-rated scale to rate the severity of the depressive symptoms. Each item is scored from 0 (item's symptoms not present) to 3 (item's symptoms are severe). The total possible score is 63. Higher scores indicate greater severity.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Clinician-Rated Global Impression Improvement Score to Last Treatment
The Clinician-Rated Global Impression Improvement score (CGI-I) rates improvement with treatment from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, Day 23
Change From Baseline in Clinician-Rated Global Impression Severity Score to Last Treatment
The Clinician-Rated Global Impression Severity score (CGI-S) rates severity of illness from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, Day 23
Change From Baseline in Clinician-Rated Global Impression Suicidality Severity Score to Last Treatment
The Clinician-Rated Global Impression Suicidality Severity score (CGI-SS) rates severity of suicidality from 1 to 5, with higher scores indicating a worse outcome.
Time frame: Baseline, Day 23
Change From Baseline in Clinician-Rated Global Impression Suicidality Improvement Score to Last Treatment
The Clinician-Rated Global Impression Suicidality Improvement score (CGI-SI) rates the improvement in suicidality from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, Day 23
Change From Baseline in Clinician-Rated Global Impression Improvement Score to Follow-up
The Clinician-Rated Global Impression Improvement score (CGI-I) rates improvement with treatment from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Clinician-Rated Global Impression Severity Score to Follow-up
The Clinician-Rated Global Impression Severity score (CGI-S) rates severity of illness from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Clinician-Rated Global Impression Suicidality Severity Score to Follow-up
The Clinician-Rated Global Impression Suicidality Severity score (CGI-SS) rates severity of suicidality from 1 to 5, with higher scores indicating a worse outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Clinician-Rated Global Impression Suicidality Improvement Score to Follow-up
The Clinician-Rated Global Impression Suicidality Improvement score (CGI-SI) rates the improvement in suicidality from 1 to 7, with higher scores indicating a worse outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in PSQI Total and Subscores to Last Treatment
The Pittsburgh Sleep Quality Index (PSQI) contains 19 self-rated questions. The answers refer to the majority of days and nights in the past month. The 19 items are combined to form 7 components, rated from 0 (no difficulty) to 3 (severe difficulty), for a sum of 21 points. A low score indicates better outcome.
Time frame: Baseline, Day 23
Change From Baseline in PSQI Total and Subscores to Follow-up
The Pittsburgh Sleep Quality Index (PSQI) contains 19 self-rated questions. The answers refer to the majority of days and nights in the past month. The 19 items are combined to form 7 components, rated from 0 (no difficulty) to 3 (severe difficulty), for a sum of 21 points. A low score indicates better outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Beck Scale for Suicide Ideation (SSI) Total to Last Treatment
The Beck Scale for Suicide Ideation (Current) consists of 19 statements to be rated by the participant on a scale of 0 to 2. A lower score means better outcome.
Time frame: Baseline, Day 23
Change From Baseline in Beck Scale for Suicide Ideation (SSI) Total to Follow-up
The Beck Scale for Suicide Ideation (Current) consists of 19 statements to be rated by the participant on a scale of 0 to 2. A lower score means better outcome.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in Psychological and Physical Pain to Last Treatment
The Visual-Analogue Scales of Psychic and Physical pain consists of two sets of 3 10cm scales. Participants note with a vertical line the intensity of their pain; currently, maximally in the past 15 days, and average over the past 15 days. The left limit indicates "0" pain whereas the right bound indicates "maximal" pain.
Time frame: Baseline, Day 23
Change From Baseline in Psychological and Physical Pain to Follow-up
The Visual-Analogue Scales of Psychic and Physical pain consists of two sets of 3 10cm scales. Participants note with a vertical line the intensity of their pain; currently, maximally in the past 15 days, and average over the past 15 days. The left limit indicates "0" pain whereas the right bound indicates "maximal" pain.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in STAI-Y A to Last Treatment
The State-Trait Anxiety Scale (STAI-Y A) consists of 20 participant-rated statements, from 1 to 4 (1= Not at all, 4= Very much so) regarding their current anxiety (state). A lower score corresponds to less severity of symptoms.
Time frame: Baseline, Day 23
Change From Baseline in STAI-Y A to Follow-up
The State-Trait Anxiety Scale (STAI-Y A) consists of 20 participant-rated statements, from 1 to 4 (1= Not at all, 4= Very much so) regarding their current anxiety (state). A lower score corresponds to less severity of symptoms.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in STAI-Y B to Last Treatment
The State-Trait Anxiety Scale (STAI-Y B) consists of 20 participant-rated statements, from 1 to 4 (1= Not at all, 4= Very much so) regarding their longstanding anxiety (trait). A lower score corresponds to less severity of symptoms.
Time frame: Baseline, 1-month follow-up (8 weeks)
Change From Baseline in STAI-Y B to Follow-up
The State-Trait Anxiety Scale (STAI-Y B) consists of 20 participant-rated statements, from 1 to 4 (1= Not at all, 4= Very much so) regarding their longstanding anxiety (trait). A lower score corresponds to less severity of symptoms.
Time frame: Baseline, 1-month follow-up (8 weeks)
The Mystical Experience Questionnaire (MEQ) after each treatment
The Mystical Experience Questionnaire consists of 30 statements to rate from 0 (none) to 5 (extreme). Possible scores range from 0 to 150 with higher scores indicating greater mystical experiences.
Time frame: Immediately after the interventions
The Psychedelic Music Questionnaire Short-Form (PMQ-SF) after each treatment
The Psychedelic Music Questionnaire Short-Form consists of 15 statements rated from 1 (none) to 5 (extremely). Possible scores range from 0 to 75 with higher scores indicating stronger engagement with, and appreciation of, the music experience.
Time frame: Immediately after the interventions
Inflammatory markers before and after the first and last treatment
Blood samples collected from subjects during the first and last treatments, before and after the infusions, totally 4 samples per patient. A panel of inflammatory markers (including interleukin-6, interleukin-1β, interleukin-1ra, interleukin-10, C-reactive protein) will be analyzed to evaluate treatment effects of one and six ketamine infusions in an exploratory fashion.
Time frame: Treatment 1 and 6 (day 23)
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