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No more funding available to continue since we could not recruit throughout the pandemic.
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The purpose of this study is to evaluate the intermediate-term efficacy and tolerability of a multiple-dosing ketamine infusion paradigm for the treatment of medication-refractory major depressive disorder (MDD). We are using a two-phase design. The first phase is a 3-week double blind parallel design clinical trial comparing 6 infusions of ketamine compared to 6 infusions of midazolam in 24 adolescents with treatment resistant depression. The primary outcome of this phase will be Children's Depression Rating Scale (CDRS) score at Day 18. The second phase is a 6-month open phase in which patients who received midazolam and remain depressed with be offered open ketamine treatment (6 infusions over 3 weeks). All participants will be followed weekly for 6 months and tracked for time to relapse.
The purpose of this study is to evaluate the intermediate-term efficacy and tolerability of a multiple-dosing ketamine infusion paradigm for the treatment of medication-refractory major depressive disorder (MDD). The specific aims of the study are: To evaluate the efficacy and tolerability of a multiple-dosing ketamine infusion paradigm (2 infusions per week for 3 weeks) compared to midazolam in adolescents with treatment resistant depression (TRD), . To test these aims we have designed a two-phase trial. The first phase is a 3-week double blind parallel design clinical trial comparing 6 infusions of ketamine compared to 6 infusions of midazolam in 24 adolescents with TRD. The primary outcome of this phase will be Children's Depression Rating Scale (CDRS) score at Day 18. The second phase is a 6-month open phase in which patients who received midazolam and remain depressed with be offered open ketamine treatment (6 infusions over 3 weeks). All participants will be followed weekly for 6 months and tracked for time to relapse. In those who initially responded to ketamine, symptom triggered maintenance infusions will be offered during this 6-month time period. All participants will receive standard of care treatment in addition to experimental procedures, and will be tracked monthly with extensive neurocognitive assessments.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Ketamine | Experimental | Ketamine is an FDA-approved anesthetic agent that is commonly used to induce surgical anesthesia due to its low incidence of significant respiratory depression and hypotension. It as a N-methyl-D-aspartate (NMDA) receptor antagonist and glutamatergic modulator, and has been demonstrated in multiple controlled clinical trials to have rapidly acting antidepressant and anti-suicidal effects in adults. |
|
| Midazolam | Placebo Comparator | Midazolam, the active control in this study, is a medication that is approved by the Food and Drug Administration as a sedative for both children and adults.It is a benzodiazepine with a short half-life that was chosen so as to blind the psychotomimetic effects of Ketamine. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ketamine infusion | Drug | The dose of ketamine established in prior research (0.5 mg/kg over 40 minutes) will be used in this study to minimize risks. The maximum total single dose allowed in this study will be 40mg, corresponding to a weight of 80kg. |
| Measure | Description | Time Frame |
|---|---|---|
| Efficacy of a Multiple-dosing Ketamine Infusion Paradigm (2 Infusions Per Week for 3 Weeks) Compared to Midazolam in Adolescents With Treatment Resistant Depression Using the Children's Depression Rating Scale (CDRS) | Establish if repeated ketamine will be efficacious medically and psychiatrically, as measured by a significant reduction in CDRS score in those treated with ketamine at the end of the dosing paradigm. The Children's Depression Rating Scale (CDRS) is a clinician-rated instrument with 17 items scored on a 1 to 5 or 1 to 7 scale. A rating of 1 indicates normal, thus the minimum score is 17. The maximum score is 113. Scores of 20-30 suggest borderline depression. Scores of 40-60 indicate moderate depression. | Day 18 |
| Tolerability of a Multiple-dosing Ketamine Infusion Paradigm (2 Infusions Per Week for 3 Weeks) Compared to Midazolam in Adolescents With Treatment Resistant Depression | Establish if repeated ketamine will be tolerated as measured by drop-out counts. | Day 18 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Michael H. Bloch, MD | Yale University | Principal Investigator |
| Jennifer Dwyer, MD | Yale University | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yale Child Study Center | New Haven | Connecticut | 06520 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 16012257 | Background | Richmond TK, Rosen DS. The treatment of adolescent depression in the era of the black box warning. Curr Opin Pediatr. 2005 Aug;17(4):466-72. doi: 10.1097/01.mop.0000166347.53102.e7. | |
| 8122957 | Background | Krystal JH, Karper LP, Seibyl JP, Freeman GK, Delaney R, Bremner JD, Heninger GR, Bowers MB Jr, Charney DS. Subanesthetic effects of the noncompetitive NMDA antagonist, ketamine, in humans. Psychotomimetic, perceptual, cognitive, and neuroendocrine responses. Arch Gen Psychiatry. 1994 Mar;51(3):199-214. doi: 10.1001/archpsyc.1994.03950030035004. |
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| ID | Title | Description |
|---|---|---|
| FG000 | Ketamine | Ketamine is an FDA-approved anesthetic agent that is commonly used to induce surgical anesthesia due to its low incidence of significant respiratory depression and hypotension. It as a N-methyl-D-aspartate (NMDA) receptor antagonist and glutamatergic modulator, and has been demonstrated in multiple controlled clinical trials to have rapidly acting antidepressant and anti-suicidal effects in adults. Ketamine infusion: The dose of ketamine established in prior research (0.5 mg/kg over 40 minutes) will be used in this study to minimize risks. The maximum total single dose allowed in this study will be 40mg, corresponding to a weight of 80kg. |
| FG001 | Midazolam | Midazolam, the active control in this study, is a medication that is approved by the Food and Drug Administration as a sedative for both children and adults.It is a benzodiazepine with a short half-life that was chosen so as to blind the psychotomimetic effects of Ketamine. Midazolam infusion: The weight-based midazolam dosing established in prior ketamine trials in adults (0.045mg/kg) will be used to minimize risks, as this is considered a very low dose compared to the sedation literature. The maximum total dose allowed in this study will be 3.6mg per infusion, corresponding to a weight of 80kg. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
Demographic data will be presented together to avoid unblinding of subjects due to small number of participants
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| ID | Title | Description |
|---|---|---|
| BG000 | Overall Participants | Participants enrolled in the trial. Due to the small sample size, data will be presented together to avoid unblinding. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Efficacy of a Multiple-dosing Ketamine Infusion Paradigm (2 Infusions Per Week for 3 Weeks) Compared to Midazolam in Adolescents With Treatment Resistant Depression Using the Children's Depression Rating Scale (CDRS) | Establish if repeated ketamine will be efficacious medically and psychiatrically, as measured by a significant reduction in CDRS score in those treated with ketamine at the end of the dosing paradigm. The Children's Depression Rating Scale (CDRS) is a clinician-rated instrument with 17 items scored on a 1 to 5 or 1 to 7 scale. A rating of 1 indicates normal, thus the minimum score is 17. The maximum score is 113. Scores of 20-30 suggest borderline depression. Scores of 40-60 indicate moderate depression. | all those enrolled in the study prior to termination | Posted | Mean | Full Range | score on a scale | Day 18 |
|
Up to 6 months
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Ketamine | Ketamine is an FDA-approved anesthetic agent that is commonly used to induce surgical anesthesia due to its low incidence of significant respiratory depression and hypotension. It as a N-methyl-D-aspartate (NMDA) receptor antagonist and glutamatergic modulator, and has been demonstrated in multiple controlled clinical trials to have rapidly acting antidepressant and anti-suicidal effects in adults. Ketamine infusion: The dose of ketamine established in prior research (0.5 mg/kg over 40 minutes) will be used in this study to minimize risks. The maximum total single dose allowed in this study will be 40mg, corresponding to a weight of 80kg. |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Diplopia | Eye disorders | Systematic Assessment |
The study was only able to enroll 3 participants before the pandemic started and then ran out of funding to finish the trial. Presented are summary data and to avoid revealing any identifying information of participants, data is presented overall where applicable (e.g. baseline characteristics).
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Dr. Michael Bloch | Yale University | 203 7374809 | michael.bloch@yale.edu |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | May 3, 2021 | Jan 25, 2023 | Prot_SAP_000.pdf |
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| ID | Term |
|---|---|
| D003865 | Depressive Disorder, Major |
| D003863 | Depression |
| ID | Term |
|---|---|
| D003866 | Depressive Disorder |
| D019964 | Mood Disorders |
| D001523 | Mental Disorders |
| D001526 | Behavioral Symptoms |
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Phase 1 is a double-blind, midazolam-controlled parallel design trial; Phase 2 is an open extension.
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Participants will not be told what medication they are receiving; physicians absent from the infusion paradigm will perform blinded clinical efficacy ratings.
| Midazolam infusion | Drug | The weight-based midazolam dosing established in prior ketamine trials in adults (0.045mg/kg) will be used to minimize risks, as this is considered a very low dose compared to the sedation literature. The maximum total dose allowed in this study will be 3.6mg per infusion, corresponding to a weight of 80kg. |
|
| 16894061 | Background | Zarate CA Jr, Singh JB, Carlson PJ, Brutsche NE, Ameli R, Luckenbaugh DA, Charney DS, Manji HK. A randomized trial of an N-methyl-D-aspartate antagonist in treatment-resistant major depression. Arch Gen Psychiatry. 2006 Aug;63(8):856-64. doi: 10.1001/archpsyc.63.8.856. |
| 23982301 | Background | Murrough JW, Iosifescu DV, Chang LC, Al Jurdi RK, Green CE, Perez AM, Iqbal S, Pillemer S, Foulkes A, Shah A, Charney DS, Mathew SJ. Antidepressant efficacy of ketamine in treatment-resistant major depression: a two-site randomized controlled trial. Am J Psychiatry. 2013 Oct;170(10):1134-42. doi: 10.1176/appi.ajp.2013.13030392. |
| 28669202 | Background | Wilkinson ST, Toprak M, Turner MS, Levine SP, Katz RB, Sanacora G. A Survey of the Clinical, Off-Label Use of Ketamine as a Treatment for Psychiatric Disorders. Am J Psychiatry. 2017 Jul 1;174(7):695-696. doi: 10.1176/appi.ajp.2017.17020239. No abstract available. |
| Participants |
|
| Age, Categorical | Count of Participants | Participants |
|
| Age, Continuous | Age at the time of enrollment to the trial. | Mean | Full Range | years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Ethnicity (NIH/OMB) | Count of Participants | Participants |
|
| OG001 | Midazolam | Midazolam, the active control in this study, is a medication that is approved by the Food and Drug Administration as a sedative for both children and adults.It is a benzodiazepine with a short half-life that was chosen so as to blind the psychotomimetic effects of Ketamine. Midazolam infusion: The weight-based midazolam dosing established in prior ketamine trials in adults (0.045mg/kg) will be used to minimize risks, as this is considered a very low dose compared to the sedation literature. The maximum total dose allowed in this study will be 3.6mg per infusion, corresponding to a weight of 80kg. |
|
|
| Primary | Tolerability of a Multiple-dosing Ketamine Infusion Paradigm (2 Infusions Per Week for 3 Weeks) Compared to Midazolam in Adolescents With Treatment Resistant Depression | Establish if repeated ketamine will be tolerated as measured by drop-out counts. | Posted | Count of Participants | Participants | Day 18 |
|
|
|
| 0 |
| 1 |
| 0 |
| 1 |
| 1 |
| 1 |
| EG001 | Midazolam | Midazolam, the active control in this study, is a medication that is approved by the Food and Drug Administration as a sedative for both children and adults.It is a benzodiazepine with a short half-life that was chosen so as to blind the psychotomimetic effects of Ketamine. Midazolam infusion: The weight-based midazolam dosing established in prior ketamine trials in adults (0.045mg/kg) will be used to minimize risks, as this is considered a very low dose compared to the sedation literature. The maximum total dose allowed in this study will be 3.6mg per infusion, corresponding to a weight of 80kg. | 0 | 2 | 0 | 2 | 2 | 2 |
| Numbness | Nervous system disorders | Systematic Assessment |
|
| Blurred Vision | Eye disorders | Systematic Assessment |
|
| Dizziness | Nervous system disorders | Systematic Assessment |
|
| Tachycardia | Cardiac disorders | Systematic Assessment |
|
| Headache | Nervous system disorders | Systematic Assessment |
|
| Shortness of Breath | Respiratory, thoracic and mediastinal disorders | Systematic Assessment |
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| Nausea | Gastrointestinal disorders | Systematic Assessment |
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| Palpitations | Cardiac disorders | Systematic Assessment |
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| Cough | Respiratory, thoracic and mediastinal disorders | Systematic Assessment |
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| Hearing Changes | Ear and labyrinth disorders | Systematic Assessment |
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| Pruritus at Infusion Site | Skin and subcutaneous tissue disorders | Systematic Assessment |
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| Tics | Nervous system disorders | Systematic Assessment |
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| Lightheadedness | Nervous system disorders | Systematic Assessment |
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| Joint Pain | Musculoskeletal and connective tissue disorders | Systematic Assessment |
|
| Stress Fracture | Musculoskeletal and connective tissue disorders | Systematic Assessment |
|
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| D001519 |
| Behavior |