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CAP-Ketamine for Antidepressant Resistant PTSD

CAP-Ketamine for Antidepressant Resistant PTSD

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02655692
Enrollment
163
Registered
2016-01-14
Start date
2016-04-18
Completion date
2020-07-01
Last updated
2022-06-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Posttraumatic Stress Disorder, PTSD

Keywords

PTSD, Ketamine, Veteran, Military, Clinical Trial

Brief summary

The purpose of this study is to test the safety and efficacy of repeated doses of ketamine as compared to placebo, in reducing symptoms of Posttraumatic Stress Disorder (PTSD) in an active duty military and Veteran population.

Detailed description

In this 2-site clinical trial, intended to evaluate the safety and efficacy of repeated doses of ketamine for treatment resistant PTSD, Veterans and active duty military personnel who meet criteria for PTSD and the additional inclusion and exclusion criteria will be randomized to one of three treatment arms (placebo, low dose ketamine, high dose ketamine). Participants receive the study drug via intravenous infusion twice per week for 4-weeks.

Interventions

DRUGKetamine

FDA approved anesthetic medication with rapid acting antidepressant effects.

This is a saline placebo/non-active solution.

Sponsors

The University of Texas Health Science Center at San Antonio
CollaboratorOTHER
Brooke Army Medical Center
CollaboratorFED
Minneapolis Veterans Affairs Medical Center
CollaboratorFED
VA Office of Research and Development
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* male or female Veterans or active duty military personnel between the ages of 18 and 70 years * diagnosis of PTSD * history of trialing one or more antidepressant medications with little to no PTSD symptom improvement * ability to provide written informed consent

Exclusion criteria

* females who are currently pregnant or breastfeeding * current high risk for suicide * history of severe head injury

Design outcomes

Primary

MeasureTime frameDescription
PTSD Checklist (PCL)Session 1 -Day 0The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD
The PTSD Checklist (PCL)Session 2 - Day 1The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Secondary

MeasureTime frameDescription
Montgomery-Asberg Depression Rating Scale (MADRS)Session 1 - Day 0Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Countries

United States

Participant flow

Participants by arm

ArmCount
Placebo
Saline dose Placebo: This is a saline placebo/non-active solution.
54
Low Dose Ketamine
Low Dose Ketamine (.20 mg/kg) Ketamine: FDA approved anesthetic medication with rapid acting antidepressant effects.
53
High Dose Ketamine
High Dose Ketamine (.50 mg/kg) Ketamine: FDA approved anesthetic medication with rapid acting antidepressant effects.
51
Total158

Baseline characteristics

CharacteristicPlaceboLow Dose KetamineHigh Dose KetamineTotal
Age, Continuous42 years
STANDARD_DEVIATION 1.5
45 years
STANDARD_DEVIATION 1.5
43 years
STANDARD_DEVIATION 1.8
43.3 years
STANDARD_DEVIATION 11.5
PCL51.95 units on a scale
STANDARD_DEVIATION 10.82
51.75 units on a scale
STANDARD_DEVIATION 12.38
50.23 units on a scale
STANDARD_DEVIATION 14.69
51.33 units on a scale
STANDARD_DEVIATION 12.62
Race/Ethnicity, Customized
Black
6 Participants7 Participants7 Participants20 Participants
Race/Ethnicity, Customized
Hispanic
8 Participants11 Participants12 Participants31 Participants
Race/Ethnicity, Customized
Other
3 Participants7 Participants3 Participants13 Participants
Race/Ethnicity, Customized
White - non Hispanic
37 Participants28 Participants29 Participants94 Participants
Sex: Female, Male
Female
14 Participants10 Participants13 Participants37 Participants
Sex: Female, Male
Male
40 Participants43 Participants38 Participants121 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 550 / 550 / 53
other
Total, other adverse events
25 / 5542 / 5538 / 53
serious
Total, serious adverse events
0 / 550 / 550 / 53

Outcome results

Primary

PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 1 -Day 0

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboPTSD Checklist (PCL)48.56 units on a scaleStandard Deviation 12.76
Low Dose KetaminePTSD Checklist (PCL)46.62 units on a scaleStandard Deviation 17.71
High Dose KetaminePTSD Checklist (PCL)47.88 units on a scaleStandard Deviation 14.46
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 2 - Day 1

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)37.65 units on a scaleStandard Deviation 18.4
Low Dose KetamineThe PTSD Checklist (PCL)32.75 units on a scaleStandard Deviation 19.39
High Dose KetamineThe PTSD Checklist (PCL)30.10 units on a scaleStandard Deviation 20.25
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 3 - Day 3

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)36.90 units on a scaleStandard Deviation 18.11
Low Dose KetamineThe PTSD Checklist (PCL)33.66 units on a scaleStandard Deviation 18.67
High Dose KetamineThe PTSD Checklist (PCL)34.20 units on a scaleStandard Deviation 18.37
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 4 - Day 7

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)34.75 units on a scaleStandard Deviation 18.96
Low Dose KetamineThe PTSD Checklist (PCL)29.09 units on a scaleStandard Deviation 20.61
High Dose KetamineThe PTSD Checklist (PCL)32.58 units on a scaleStandard Deviation 19.12
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 5 - Day 10

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)35.11 units on a scaleStandard Deviation 18.84
Low Dose KetamineThe PTSD Checklist (PCL)28.51 units on a scaleStandard Deviation 21.12
High Dose KetamineThe PTSD Checklist (PCL)31.46 units on a scaleStandard Deviation 18.6
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 6 - Day 14

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)30.80 units on a scaleStandard Deviation 19.85
Low Dose KetamineThe PTSD Checklist (PCL)26.40 units on a scaleStandard Deviation 21.12
High Dose KetamineThe PTSD Checklist (PCL)27.91 units on a scaleStandard Deviation 17.04
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 7 - Day 17

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)28.48 units on a scaleStandard Deviation 19.47
Low Dose KetamineThe PTSD Checklist (PCL)24.13 units on a scaleStandard Deviation 20.15
High Dose KetamineThe PTSD Checklist (PCL)26.54 units on a scaleStandard Deviation 17.58
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 8 - Day 21

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)29.31 units on a scaleStandard Deviation 20.39
Low Dose KetamineThe PTSD Checklist (PCL)24.52 units on a scaleStandard Deviation 20.45
High Dose KetamineThe PTSD Checklist (PCL)26.73 units on a scaleStandard Deviation 17.2
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Session 9 - Day 24

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)28.31 units on a scaleStandard Deviation 19.89
Low Dose KetamineThe PTSD Checklist (PCL)21.94 units on a scaleStandard Deviation 20.35
High Dose KetamineThe PTSD Checklist (PCL)25.62 units on a scaleStandard Deviation 19.86
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 1 - Day 25

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)27.34 units on a scaleStandard Deviation 20.25
Low Dose KetamineThe PTSD Checklist (PCL)21.35 units on a scaleStandard Deviation 20.7
High Dose KetamineThe PTSD Checklist (PCL)22.54 units on a scaleStandard Deviation 17.98
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 2 - Day 28

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)37.84 units on a scaleStandard Deviation 18.37
Low Dose KetamineThe PTSD Checklist (PCL)34.59 units on a scaleStandard Deviation 18.45
High Dose KetamineThe PTSD Checklist (PCL)39.58 units on a scaleStandard Deviation 15.55
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 3 - Day 29

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)33.79 units on a scaleStandard Deviation 19.8
Low Dose KetamineThe PTSD Checklist (PCL)33.72 units on a scaleStandard Deviation 20.17
High Dose KetamineThe PTSD Checklist (PCL)40.27 units on a scaleStandard Deviation 16.29
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 4 - Day 35

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)26.92 units on a scaleStandard Deviation 19.17
Low Dose KetamineThe PTSD Checklist (PCL)22.84 units on a scaleStandard Deviation 21.46
High Dose KetamineThe PTSD Checklist (PCL)24.09 units on a scaleStandard Deviation 17.05
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 5 - Day 42

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)28.14 units on a scaleStandard Deviation 20.92
Low Dose KetamineThe PTSD Checklist (PCL)25.62 units on a scaleStandard Deviation 21.81
High Dose KetamineThe PTSD Checklist (PCL)29.16 units on a scaleStandard Deviation 19.85
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 6 - Day 49

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)30.71 units on a scaleStandard Deviation 21.33
Low Dose KetamineThe PTSD Checklist (PCL)24.90 units on a scaleStandard Deviation 20.66
High Dose KetamineThe PTSD Checklist (PCL)30.21 units on a scaleStandard Deviation 18.82
Primary

The PTSD Checklist (PCL)

The PTSD Checklist (PCL) is a brief measure of the symptoms of Posttraumatic Stress Disorder (PTSD) to measure change in PTSD symptoms. The PCL-5 is a 20-item self-report measure, a total symptom severity score (range - 0-80) is obtained by summing the scores for each of the 20 items. (5-point Likert (0 = Not at all to 4 = Extremely). A total symptom severity score (range 0-80) with higher scores indicating greater severity for PTSD

Time frame: Follow-up 7 - Day 56

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboThe PTSD Checklist (PCL)31.90 units on a scaleStandard Deviation 21.08
Low Dose KetamineThe PTSD Checklist (PCL)24.32 units on a scaleStandard Deviation 21.15
High Dose KetamineThe PTSD Checklist (PCL)31.23 units on a scaleStandard Deviation 19.81
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 1 - Day 0

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)28.24 score on a scaleStandard Deviation 8.43
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)27.81 score on a scaleStandard Deviation 10.3
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)27.84 score on a scaleStandard Deviation 9.3
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 2 - Day 1

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)17.75 score on a scaleStandard Deviation 11.16
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)17.02 score on a scaleStandard Deviation 13.02
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)12.94 score on a scaleStandard Deviation 9.5
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 3 - Day 3

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)19.98 score on a scaleStandard Deviation 11.22
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)19.34 score on a scaleStandard Deviation 12.77
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)17.86 score on a scaleStandard Deviation 11.55
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 4 - Day 7

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)19.94 score on a scaleStandard Deviation 11.64
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)17.83 score on a scaleStandard Deviation 13.11
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)18.54 score on a scaleStandard Deviation 10.62
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 5 - Day 10

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)20.70 score on a scaleStandard Deviation 11.79
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)16.64 score on a scaleStandard Deviation 12.9
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)18.07 score on a scaleStandard Deviation 9.98
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 6 - Day 14

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)18.36 score on a scaleStandard Deviation 11.9
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)16.71 score on a scaleStandard Deviation 13.47
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)16.83 score on a scaleStandard Deviation 9.91
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 7 - Day 17

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)17.02 score on a scaleStandard Deviation 12.52
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)14.75 score on a scaleStandard Deviation 12.98
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)15.15 score on a scaleStandard Deviation 10.35
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 8 - Day 21

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)17.02 score on a scaleStandard Deviation 12.52
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)16.44 score on a scaleStandard Deviation 13.66
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)15.78 score on a scaleStandard Deviation 11.59
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Session 9 - Day 24

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)17.11 score on a scaleStandard Deviation 11.75
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)14.43 score on a scaleStandard Deviation 12.29
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)14.24 score on a scaleStandard Deviation 10.59
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 1 - Day 25

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)15.98 score on a scaleStandard Deviation 12.32
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)12.91 score on a scaleStandard Deviation 12.6
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)10.78 score on a scaleStandard Deviation 9.85
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 2 - Day 28

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)24.00 score on a scaleStandard Deviation 10.3
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)25.11 score on a scaleStandard Deviation 12.2
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)25.08 score on a scaleStandard Deviation 7.34
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 3 - Day 29

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)15.00 score on a scaleStandard Deviation 11.55
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)19.18 score on a scaleStandard Deviation 13.99
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)20.27 score on a scaleStandard Deviation 8.32
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 4 - Day 35

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)16.08 score on a scaleStandard Deviation 11.15
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)14.43 score on a scaleStandard Deviation 12.71
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)12.72 score on a scaleStandard Deviation 9.24
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 5 - Day 42

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)16.89 score on a scaleStandard Deviation 12.51
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)15.74 score on a scaleStandard Deviation 13.03
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)16.42 score on a scaleStandard Deviation 9.39
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 6 - Day 49

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)19.60 score on a scaleStandard Deviation 11.52
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)15.87 score on a scaleStandard Deviation 11.79
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)17.68 score on a scaleStandard Deviation 8.86
Secondary

Montgomery-Asberg Depression Rating Scale (MADRS)

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician rated ten-item diagnostic questionnaire to measure the severity of depression. The overall score ranges from 0 to 60 (0 to 6 - normal/symptom absent; 7 to 19 mild depression; 20 to 34 - moderate depression; \>34 - severe depression)

Time frame: Follow-up 7 - Day 56

Population: The variability in the number of participants for data points resulted from a variety of reasons for example participants not showing up for appointments, dropping out of the study and/or illness.

ArmMeasureValue (MEAN)Dispersion
PlaceboMontgomery-Asberg Depression Rating Scale (MADRS)19.45 score on a scaleStandard Deviation 11.19
Low Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)15.44 score on a scaleStandard Deviation 12.98
High Dose KetamineMontgomery-Asberg Depression Rating Scale (MADRS)19.58 score on a scaleStandard Deviation 10.94

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026