A Study Comparing Oral Ketamine With Oral Midazolam for the Treatment of Major Depressive Episodes
KOMET
A Randomized, Double-blind, Active Placebo-controlled, Multicenter Trial of Efficacy and Safety of Adjunctive Oral Ketamine vs Oral Midazolam for Major Depressive Episodes
1 other identifier
interventional
220
1 country
5
Brief Summary
Patients with depression are acutely distressed, often suicidal, and unable to meet the demands of everyday life. If proven effective in a rigorously conducted multicenter randomized controlled trial (RCT), oral ketamine would provide an affordable and scalable, intervention suitable for integration into routine psychiatric services.This study will establish an indigenous, cost-effective therapeutic strategy that could improve accessibility, hasten therapeutic response, and inform treatment guidelines, if found to be safe and effective.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Oct 2026
Typical duration for phase_3
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 18, 2026
CompletedFirst Posted
Study publicly available on registry
September 24, 2026
CompletedStudy Start
First participant enrolled
October 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2029
October 1, 2026
September 1, 2026
3 years
September 18, 2026
September 28, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Hamilton Depression Rating Scale (HAM-D)
Endpoint HAM-D scores. Minimum 0 and maximum 52. Higher scores denote worse outcomes.
End of study week 3 (±2 days)
Secondary Outcomes (7)
Hamilton Depression Rating Scale (HAM-D)
Study day 2 (± 1 day), day 7 (± 1 day), and the end of study weeks 2 (± 1 day) and week 4 (±2 days)
Montgomery-Asberg Depression Rating Scale (MADRS)
End of study day 2 (± 1 day), day 7 (± 1 day), end of study week 2 (±1 day), week 3 (± 2 days), and week 4 (± 2 days)
Patient Health Questionnaire (PHQ)-9
End of study day 2 (± 1 day), day 7 (± 1 day), end of study week 2 (±1 day), week 3 (± 2 days), and week 4 (± 2 days)
Hamilton Depression Rating Scale (HAM-D)/Montgomery-Asberg Depression Rating Scale (MADRS)
End of study week 2 (±1 day), week 3 (± 2 days), and week 4 (± 2 days)
Visual Analogue Scale for self-rated functioning & quality of life
End of study week 2 (±1 day), week 3 (± 2 days), and week 4 (± 2 days)
- +2 more secondary outcomes
Study Arms (2)
Oral midazolam
PLACEBO COMPARATORThe comparator arm will receive flexibly-dosed oral midazolam (5-7.5mg across all nine sessions, guided based on psychophysiological response to preserve the integrity of blinding), which will also be administered in approximately 200 mL of water, and sipped across 20-30 minutes
Oral ketamine
EXPERIMENTALIn the first session, oral ketamine will be administered as a fixed 150 mg dose diluted in approximately 200 mL water and sipped across 20-30 minutes. In sessions 2-9 for oral ketamine, the dose will be lowered to 100-125mg in those who do not tolerate 150mg. If patients tolerate the first session well, the dose of ketamine will be increased to 175mg in the second session. If there is a negligible benefit and the intervention is tolerated, the dose of ketamine will be increased to 200 mg in the third session. Further increase in ketamine will be done in the last week to 250mg, if deemed necessary, due to suboptimal response. Participants will remain nil per oral from one hour before until two hours after each session. Blood pressure and pulse rate will be monitored every 15 minutes for one hour or until normalization. Benzodiazepines such as clonazepam will be permitted for anxiety or agitation
Interventions
Eligibility Criteria
You may qualify if:
- Consenting adult outpatients or inpatients with at least moderately severe major depressive episode (MDE), denoted by HAM- D more than or equal to 20, associated with major depressive disorder or bipolar disorder, with diagnosis confirmed using a structured diagnostic interview.
You may not qualify if:
- Patients with co-morbid obsessive-compulsive disorder or intellectual disability disorder or co-morbid substance dependence other than nicotine or patients concurrently receiving neuromodulation treatments or those with psychotic symptoms. Patients with current or ongoing suicide risk, such as active suicidal ideation with a specific plan or some intent in the last 3 days, will be excluded if they are treated as outpatients. Patients in whom, in the subjective opinion of the PI, the MDE symptoms appear to be significantly driven by acute life events or circumstances. Patients with abnormalities of concern detected in the electrocardiogram, or with uncontrolled hypertension or those with ongoing pregnancy or lactation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
NIMHANS
Bangalore, Karnataka, India
Kasturba Medical College
Udupi, Karnataka, India
MGM Medical College, Mumbai
Mumbai, Maharashtra, India
AIIMS, Bhubaneswar
Bhubaneswar, Odisha, India
Jawaharlal Institute of Postgraduate Medical Education and Research
Puducherry, Puducherry, India
Related Publications (3)
Kaur S, Parmar C, Gaur V, Chauhan A, Andrade C. The efficacy of oral ketamine in severely depressed patients at high risk of suicide. Asian J Psychiatr. 2023 Aug;86:103678. doi: 10.1016/j.ajp.2023.103678. Epub 2023 Jun 12.
PMID: 37352755BACKGROUNDKumar PS, Menon V, Andrade C. A randomised, open-label, pragmatic pilot comparison of oral and intravenous ketamine in treatment-resistant depression. Asian J Psychiatr. 2024 Sep;99:104171. doi: 10.1016/j.ajp.2024.104171. Epub 2024 Jul 23.
PMID: 39068714BACKGROUNDSilberbauer LR, Eggerstorfer B, Michenthaler P, Reichel S, Stimpfl T, Vanicek T, Naderi-Heiden A, Kasper S, Lanzenberger R, Gryglewski G. Oral ketamine for the treatment of major depressive and bipolar disorder, a randomized controlled trial and meta-analysis. J Affect Disord. 2026 Feb 1;394(Pt A):120466. doi: 10.1016/j.jad.2025.120466. Epub 2025 Oct 14.
PMID: 41101490BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
September 18, 2026
First Posted
September 24, 2026
Study Start
October 1, 2026
Primary Completion (Estimated)
October 1, 2029
Study Completion (Estimated)
October 1, 2029
Last Updated
October 1, 2026
Record last verified: 2026-09
Data Sharing
- IPD Sharing
- Will not share