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Research/Ketamine for Depressive Disorders/Dose summaries
Curated dose summary

Ketamine for Depressive Disorders: dose summaries

Ketamine clinical studies for Depressive Disorders include 118 structured dose rows across 79 linked trials. Common source-reported dose patterns include 0.5 mg/kg, 0.5-0.75 mg/kg, 0.25 mg/kg. Interpret these as descriptive trial protocols, not treatment recommendations.

Clinical studies
79
Dose rows
118
Source papers
155
Needs review
1

How to read this summary

This page summarizes source-structured dosing used in linked human clinical studies. It preserves the source-reported unit, route, frequency, and regimen notes where available.

Source-reported protocol patterns

Patterns group structured dose rows with the same reported dose, route, and regimen type. They preserve source units and do not imply clinical equivalence.

30 rows

0.5 mg/kg via IV

Reported in 30 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

22 rows

0.5 mg/kg via IV (fixed)

Reported in 22 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

8 rows

0.5 mg/kg via IV (multi-dose)

Reported in 8 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

4 rows

0.5-0.75 mg/kg via IV (range)

Reported in 4 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

3 rows

0.25 mg/kg via IV (fixed)

Reported in 3 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

3 rows

0.8 mg/kg via IV (multi-dose)

Reported in 3 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

2 rows

0.2 mg/kg via IV (fixed)

Reported in 2 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: IV

2 rows

0.5-0.9 mg/kg via Other (titrated)

Reported in 2 dose rows. Source rows retain their original units and should be read descriptively, not as dosing guidance.

Routes: Other

Traceable dose rows

Each row comes from a linked clinical trial intervention. Rows with missing or reviewed-incomplete dosing stay visible instead of being filled by inference.

Back to evidence set →
StudyArmDoseRoute and regimenSource status
A Double-Blind Randomized Controlled Trial Using a Low Dose of Ketamine vs Active Placebo in Treating Severe Depression and Suicide
TrialPaperUMIN000033916
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose

Low-dose IV infusion over 40 minutes

Not reviewed
existing-data | a-randomized-double-blind-midazolam-controlled-trial-of-low-dose-ketamine-infusi
A longitudinal open-label, dose-ranging clinical trial to evaluate the effectiveness of oral ketamine, an NMDA (N-methyl-D-aspartate) receptor antagonist, in patients who are experiencing chronic suicidal ideation
TrialPaperACTRN12618001937202
Oral ketamine
Ketamine
0.5-3 mg/kg
Oral
Individualised; 1–4 weekly (first interval 2 weeks)

Oral liquid ketamine 0.5–3.0 mg/kg administered by psychiatrist or nurse; dose chosen per participant tolerability from parent OKTOS study; OKTOS-E: 4–11 doses; OKTOS-M: 7–26 doses.

Not reviewed
existing-data | spectral-changes-of-eeg-following-a-6-week-low-dose-oral-ketamine-treatment-in-a
A Naturalistic Study of Ketamine for Treatment Resistant Mood Disorders
TrialPaperNCT04226963
Ketamine (IV, nasal, oral)
Ketamine
0.5 mg/kg
IV
twice weekly | 8 doses

Slow IV infusion 0.5 mg/kg over 40 minutes, twice weekly for 4 weeks.

Not reviewed
existing-data | central-nervous-system-related-safety-and-tolerability-of-add-on-ketamine-to-ant
A Naturalistic Study of Ketamine for Treatment Resistant Mood Disorders
TrialPaperNCT04226963
Ketamine (IV, nasal, oral)
Ketamine
2-2.5 mg/kg
Oral
twice weekly | 8 doses

Oral solution 2.0–2.5 mg/kg, twice weekly for 4 weeks.

Not reviewed
existing-data | central-nervous-system-related-safety-and-tolerability-of-add-on-ketamine-to-ant
A Naturalistic Study of Ketamine for Treatment Resistant Mood Disorders
TrialPaperNCT04226963
Ketamine (IV, nasal, oral)
Ketamine
Not reported
Other
twice weekly | 8 doses

Intranasal ketamine spray, twice weekly for 4 weeks (dose not specified).

Not reviewed
central-nervous-system-related-safety-and-tolerability-of-add-on-ketamine-to-ant
A Phase 2a Proof-of-Concept Study of R-107 (Extended-Release Ketamine Tablets) for the Treatment of Refractory Major Depressive Disorder (BEDROC)
TrialPaperACTRN12618001042235
R-107 120mg
Ketamine
120 mg
Oral | multi-dose
twice weekly

Extended-release tablets (R-107)

Not reviewed
existing-data | randomized-placebo-controlled-phase-2-study-of-extended-release-ketamine-tablets
A Phase 2a Proof-of-Concept Study of R-107 (Extended-Release Ketamine Tablets) for the Treatment of Refractory Major Depressive Disorder (BEDROC)
TrialPaperACTRN12618001042235
R-107 180mg
Ketamine
180 mg
Oral | multi-dose
twice weekly

Extended-release tablets (R-107)

Not reviewed
existing-data | randomized-placebo-controlled-phase-2-study-of-extended-release-ketamine-tablets
A Phase 2a Proof-of-Concept Study of R-107 (Extended-Release Ketamine Tablets) for the Treatment of Refractory Major Depressive Disorder (BEDROC)
TrialPaperACTRN12618001042235
R-107 30mg
Ketamine
30 mg
Oral | multi-dose
twice weekly

Extended-release tablets (R-107)

Not reviewed
existing-data | randomized-placebo-controlled-phase-2-study-of-extended-release-ketamine-tablets
A Phase 2a Proof-of-Concept Study of R-107 (Extended-Release Ketamine Tablets) for the Treatment of Refractory Major Depressive Disorder (BEDROC)
TrialPaperACTRN12618001042235
R-107 60mg
Ketamine
60 mg
Oral | multi-dose
twice weekly

Extended-release tablets (R-107)

Not reviewed
existing-data | randomized-placebo-controlled-phase-2-study-of-extended-release-ketamine-tablets
A randomised, double blind, active placebo-controlled crossover trial to evaluate the short term efficacy of an N-Methyl-D-Aspartate antagonist for patients with treatment resistant depression
TrialPaperACTRN12615000573550
Ketamine
Ketamine
0.25 mg/kg
IV | fixed
single dose | 1 dose

IV bolus 0.25 mg/kg then infusion 0.25 mg/kg/hr for 45 minutes.

Not reviewed
existing-data | ketamine-improves-short-term-plasticity-in-depression-by-enhancing-sensitivity-t
A Study of Ketamine in Patients With Treatment-resistant Depression
TrialPaperNCT01627782
Ketamine 2x/week
Ketamine
0.5 mg/kg
IV
two times weekly | 8 doses

IV ketamine 0.50 mg/kg, two times weekly for 4 weeks

Not reviewed
existing-data | a-double-blind-randomized-placebo-controlled-dose-frequency-study-of-intravenous
A Study of Ketamine in Patients With Treatment-resistant Depression
TrialPaperNCT01627782
Ketamine 3x/week
Ketamine
0.5 mg/kg
IV
three times weekly | 12 doses

IV ketamine 0.50 mg/kg, three times weekly for 4 weeks

Not reviewed
existing-data | a-double-blind-randomized-placebo-controlled-dose-frequency-study-of-intravenous
An exploratory study of antidepressant treatment using ketamine for treatment-resistant depression
TrialPaperChiCTR-OOC-17012239
Repeated ketamine infusions
Ketamine
0.5 mg/kg
IV | multi-dose
Thrice weekly for 2 weeks | 6 doses

Each infusion delivered over 40 minutes. Assessments at baseline and day 13 (after sixth infusion).

Not reviewed
existing-data | rapid-and-longer-term-antidepressant-effects-of-repeated-dose-intravenous-ketami
An open-label clinical trial of oral ketamine, an NMDA (N-methyl-D-aspartate) receptor antagonist, with weekly dosing over six weeks, in 25-50 patients who are experiencing chronic suicidal ideation.
TrialPaperACTRN12618001412224
Oral ketamine
Ketamine
0.5-3 mg/kg
Oral
weekly | 6 doses

Start 0.5 mg/kg and titrate 0.1–0.5 mg/kg weekly to 3.0 mg/kg per psychiatrist; supervised administration with ~1 h monitoring post-dose.

Not reviewed
existing-data | low-dose-oral-ketamine-treatment-in-chronic-suicidality-an-open-label-pilot-stud
Antidepressant Effects of Ketamine in Depressed Patients: A Randomized Double-Blind Placebo-Controlled Crossover Pilot
TrialPaperBERMAN-2000-BP-KETAMINE-MDD
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Infused over 40 min

Not reviewed
existing-data | antidepressant-effects-of-ketamine-in-depressed-patients
Ascending-Dose Subcutaneous Ketamine for Treatment-Refractory Anxiety Disorders: Dose-Finding Study (Glue 2017, University of Otago, ANZCTR)
TrialPaperGLUE-2017-JPP-KETAMINE-ANXIETY-ANZCTR
Ketamine 0.25mg/kg
Ketamine
0.25 mg/kg
Subcutaneous | titrated
single dose | 1 dose

Administered at 1-week intervals in an ascending dose design

Not reviewed
existing-data | ketamine-effects-on-eeg-during-therapy-of-treatment-resistant-generalized-anxiet
Ascending-Dose Subcutaneous Ketamine for Treatment-Refractory Anxiety Disorders: Dose-Finding Study (Glue 2017, University of Otago, ANZCTR)
TrialPaperGLUE-2017-JPP-KETAMINE-ANXIETY-ANZCTR
Ketamine 0.5mg/kg
Ketamine
0.5 mg/kg
Subcutaneous | titrated
single dose | 1 dose

Administered at 1-week intervals in an ascending dose design

Not reviewed
existing-data | ketamine-effects-on-eeg-during-therapy-of-treatment-resistant-generalized-anxiet
Ascending-Dose Subcutaneous Ketamine for Treatment-Refractory Anxiety Disorders: Dose-Finding Study (Glue 2017, University of Otago, ANZCTR)
TrialPaperGLUE-2017-JPP-KETAMINE-ANXIETY-ANZCTR
Ketamine 1mg/kg
Ketamine
1 mg/kg
Subcutaneous | titrated
single dose | 1 dose

Administered at 1-week intervals in an ascending dose design

Not reviewed
existing-data | ketamine-effects-on-eeg-during-therapy-of-treatment-resistant-generalized-anxiet
Biomarkers of Fast Acting Therapies in Major Depression
TrialPaperNCT02165449
Ketamine
Ketamine
0.5 mg/kg
IV
2-3 times/week | 4 doses

Diluted in 60 mL saline and given as a slow IV infusion over 40 minutes; additional doses given if no remission up to 4

Not reviewed
existing-data | neurocognitive-effects-of-subanesthetic-serial-ketamine-infusions-in-treatment-r
CAP-Ketamine for Antidepressant Resistant PTSD
TrialPaperNCT02655692
Low Dose
Ketamine
0.2 mg/kg
IV | multi-dose
twice weekly | 8 doses

8 infusions total

Not reviewed
existing-data | dose-related-effects-of-ketamine-for-antidepressant-resistant-symptoms-of-posttr
CAP-Ketamine for Antidepressant Resistant PTSD
TrialPaperNCT02655692
Standard Dose
Ketamine
0.5 mg/kg
IV | multi-dose
twice weekly | 8 doses

8 infusions total

Not reviewed
existing-data | dose-related-effects-of-ketamine-for-antidepressant-resistant-symptoms-of-posttr
Chart Review of Patients Undergoing Ketamine Infusions
TrialPaperNCT04209296
Bipolar disorder
Ketamine
0.5-0.75 mg/kg
IV | range
per clinic protocol

Ketamine Hydrochloride (racemic); subanesthetic IV infusions per local protocol. Dose data found during issue #220 source review.

Source Backed
paper-text | paper:real-world-effectiveness-of-repeated-ketamine-infusions-borderline

treatment prior to the emergence of COVID-19 in Ontario, Canada. === METHODS === We performed a retrospective case series analysis of adults receiving four IV ketamine infusions (0.5-0.75 mg/kg) over ~2 weeks for TRD in an outpatient clinic in Ontario, Canada to evaluate treatment response during COVID-19. Treatment outcomes were compared between adults who received trea

Chart Review of Patients Undergoing Ketamine Infusions
TrialPaperNCT04209296
MDD
Ketamine
0.5-0.75 mg/kg
IV | range
per clinic protocol

Ketamine Hydrochloride (racemic); subanesthetic IV infusions per local protocol. Dose data found during issue #220 source review.

Source Backed
paper-text | paper:real-world-effectiveness-of-repeated-ketamine-infusions-borderline

treatment prior to the emergence of COVID-19 in Ontario, Canada. === METHODS === We performed a retrospective case series analysis of adults receiving four IV ketamine infusions (0.5-0.75 mg/kg) over ~2 weeks for TRD in an outpatient clinic in Ontario, Canada to evaluate treatment response during COVID-19. Treatment outcomes were compared between adults who received trea

Chart Review of Patients Undergoing Ketamine Infusions
TrialPaperNCT04209296
OCD
Ketamine
0.5-0.75 mg/kg
IV | range
per clinic protocol

Ketamine Hydrochloride (racemic); subanesthetic IV infusions per local protocol. Dose data found during issue #220 source review.

Source Backed
paper-text | paper:real-world-effectiveness-of-repeated-ketamine-infusions-borderline

treatment prior to the emergence of COVID-19 in Ontario, Canada. === METHODS === We performed a retrospective case series analysis of adults receiving four IV ketamine infusions (0.5-0.75 mg/kg) over ~2 weeks for TRD in an outpatient clinic in Ontario, Canada to evaluate treatment response during COVID-19. Treatment outcomes were compared between adults who received trea

Chart Review of Patients Undergoing Ketamine Infusions
TrialPaperNCT04209296
PTSD
Ketamine
0.5-0.75 mg/kg
IV | range
per clinic protocol

Ketamine Hydrochloride (racemic); subanesthetic IV infusions per local protocol. Dose data found during issue #220 source review.

Source Backed
paper-text | paper:real-world-effectiveness-of-repeated-ketamine-infusions-borderline

treatment prior to the emergence of COVID-19 in Ontario, Canada. === METHODS === We performed a retrospective case series analysis of adults receiving four IV ketamine infusions (0.5-0.75 mg/kg) over ~2 weeks for TRD in an outpatient clinic in Ontario, Canada to evaluate treatment response during COVID-19. Treatment outcomes were compared between adults who received trea

Continuation Ketamine in Major Depression
TrialPaperNCT00548964
Ketamine + Lithium
Ketamine
0.5 mg/kg
IV
repeated over 1 week

IV ketamine infusions

Not reviewed
existing-data | rapid-and-longer-term-antidepressant-effects-of-repeated-ketamine-infusions-in-t
Continuation Ketamine in Major Depression
TrialPaperNCT00548964
Ketamine + Placebo
Ketamine
0.5 mg/kg
IV
repeated over 1 week

IV ketamine infusions

Not reviewed
existing-data | rapid-and-longer-term-antidepressant-effects-of-repeated-ketamine-infusions-in-t
Dose-Related Effects of Single IV Ketamine Infusion in Treatment-Resistant Depression: A Randomised Parallel-Group Trial (Su 2017, Taipei Veterans General Hospital)
TrialPaperUMIN000016985
0.2mg/kg Ketamine
Ketamine
0.2 mg/kg
IV | fixed
single dose | 1 dose

R/S-ketamine hydrochloride

Not reviewed
existing-data | dose-related-effects-of-adjunctive-ketamine-in-taiwanese-patients-with-treatment
Dose-Related Effects of Single IV Ketamine Infusion in Treatment-Resistant Depression: A Randomised Parallel-Group Trial (Su 2017, Taipei Veterans General Hospital)
TrialPaperUMIN000016985
0.5mg/kg Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

R/S-ketamine hydrochloride

Not reviewed
existing-data | dose-related-effects-of-adjunctive-ketamine-in-taiwanese-patients-with-treatment
Double-Blind Trial of Ketamine Therapy Plus or Minus Naltrexone in Treatment Resistant Depression (TRD)
TrialPaperNCT02911597
Ketamine + Naltrexone/placebo
Ketamine
0.5 mg/kg
IV
single dose | 2 doses

Ketamine 0.5 mg/kg IV infusion; two sessions separated by ~30 days.

Not reviewed
existing-data | attenuation-of-antidepressant-and-antisuicidal-effects-of-ketamine-by-opioid-rec
Double-Blind, Placebo-Controlled Trial of Ketamine Therapy in Treatment-Resistant Depression (TRD)
TrialPaperNCT01920555
Ketamine 0.1 mg/kg
Ketamine
0.1 mg/kg
IV
single infusion | 1 dose
Not reviewed
existing-data | efficacy-of-intravenous-ketamine-treatment-in-anxious-versus-nonanxious-unipolar
Double-Blind, Placebo-Controlled Trial of Ketamine Therapy in Treatment-Resistant Depression (TRD)
TrialPaperNCT01920555
Ketamine 0.2 mg/kg
Ketamine
0.2 mg/kg
IV
single infusion | 1 dose
Not reviewed
existing-data | efficacy-of-intravenous-ketamine-treatment-in-anxious-versus-nonanxious-unipolar
Double-Blind, Placebo-Controlled Trial of Ketamine Therapy in Treatment-Resistant Depression (TRD)
TrialPaperNCT01920555
Ketamine 0.5 mg/kg
Ketamine
0.5 mg/kg
IV
single infusion | 1 dose
Not reviewed
existing-data | efficacy-of-intravenous-ketamine-treatment-in-anxious-versus-nonanxious-unipolar
Double-Blind, Placebo-Controlled Trial of Ketamine Therapy in Treatment-Resistant Depression (TRD)
TrialPaperNCT01920555
Ketamine 1.0 mg/kg
Ketamine
1 mg/kg
IV
single infusion | 1 dose
Not reviewed
existing-data | efficacy-of-intravenous-ketamine-treatment-in-anxious-versus-nonanxious-unipolar
Effectiveness of ketamine therapy among patients with treatment-resistant depression: a double-blind, randomised, controlled trial
TrialPaperACTRN12616001096448
Fixed-dose ketamine 0.5 mg/kg
Ketamine
0.5 mg/kg
Other | multi-dose
twice weekly for 4 weeks | 8 doses

Subcutaneous injection.

Not reviewed
existing-data | efficacy-and-safety-of-a-4-week-course-of-repeated-subcutaneous-ketamine-injecti
Effectiveness of ketamine therapy among patients with treatment-resistant depression: a double-blind, randomised, controlled trial
TrialPaperACTRN12616001096448
Flexible-dose ketamine 0.5-0.9 mg/kg
Ketamine
0.5-0.9 mg/kg
Other | titrated
twice weekly for 4 weeks | 8 doses

Subcutaneous injection; escalation steps 0.6, 0.75, and 0.9 mg/kg if not improved by 50%.

Not reviewed
existing-data | efficacy-and-safety-of-a-4-week-course-of-repeated-subcutaneous-ketamine-injecti
Effectiveness of ketamine therapy among patients with treatment-resistant depression: a double-blind, randomised, controlled trial
TrialPaperACTRN12616001096448
Ketamine (combined KADS cohorts)
Ketamine
0.5-0.9 mg/kg
Other | titrated
twice weekly for 4 weeks | 8 doses

Subcutaneous racemic ketamine; fixed-dose cohort used 0.5 mg/kg and flexible-dose cohort escalated 0.5-0.9 mg/kg.

Not reviewed
existing-data | efficacy-and-safety-of-a-4-week-course-of-repeated-subcutaneous-ketamine-injecti
Effects of Low-dose Ketamine as an Adjunct to Propofol-based Anesthesia for Electroconvulsive Therapy
TrialPaperNCT02579642
Ketamine
Ketamine
0.2-0.5 mg/kg
IV
per ECT session | 12 doses

Administered with usual propofol induction (0.75–1 mg/kg)

Not reviewed
existing-data | low-dose-ketamine-does-not-improve-the-speed-of-recovery-from-depression-in-elec
Effects of single intravenous arketamine dose as an adjunctive therapy for treatment-resistant unipolar depression: a randomized, double-blind, crossover, placebo-controlled trial
TrialPaperUMIN000038347
Arketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose per crossover period | 1 dose

Pure (R)-ketamine hydrochloride, enantiomeric excess >99.0%; each participant received arketamine in one of two crossover periods.

Not reviewed
existing-data | arketamine-as-adjunctive-therapy-for-treatment-resistant-depression-a-placebo-co
Efficacy of Repeated Ketamine Infusions for Treatment-resistant Depression
TrialPaperNCT02360280
Single ketamine + midazolam
Ketamine
0.5 mg/kg
IV
single infusion | 1 dose

Single ketamine infusion administered on final infusion day; infusion over 40 minutes.

Not reviewed
existing-data | a-randomized-double-blind-active-placebo-controlled-study-of-efficacy-safety-and
Efficacy of Repeated Ketamine Infusions for Treatment-resistant Depression
TrialPaperNCT02360280
Six ketamine infusions
Ketamine
0.5 mg/kg
IV
six infusions over 12 days | 6 doses

Infusions on days 1,3,5,8,10,12; each infusion over 40 minutes.

Not reviewed
existing-data | a-randomized-double-blind-active-placebo-controlled-study-of-efficacy-safety-and
ELEKT-D: Electroconvulsive Therapy (ECT) vs. Ketamine in Patients With Treatment Resistant Depression (TRD)
TrialPaperNCT03113968
Ketamine infusion
Ketamine
0.5 mg/kg
IV
twice weekly | 6 doses

0.5 mg/kg infusion over 40 minutes; dose may be modified if clinically warranted.

Not reviewed
existing-data | ketamine-versus-ect-for-nonpsychotic-treatment-resistant-major-depression
Emergency Ketamine Treatment of Suicidal Ideation
TrialPaperNCT02183272
Intranasal Ketamine
Ketamine
0.2 mg/kg
Other
two doses | 2 doses

Intranasal administration by physician

Not reviewed
existing-data | single-fixed-dose-intranasal-ketamine-for-alleviation-of-acute-suicidal-ideation
Examining the Impact of Sirolimus on Ketamine’s Antidepressant Effects
TrialPaperNCT02487485
Ketamine + Placebo
Ketamine
0.5 mg/kg
IV
two sessions | 2 doses

Infusion over ~40 minutes.

Not reviewed
existing-data | modulation-of-the-antidepressant-effects-of-ketamine-by-the-mtorc1-inhibitor-rap
Examining the Impact of Sirolimus on Ketamine’s Antidepressant Effects
TrialPaperNCT02487485
Ketamine + Sirolimus
Ketamine
0.5 mg/kg
IV
two sessions | 2 doses

Infusion over ~40 minutes; one infusion paired with sirolimus, the other with placebo.

Not reviewed
existing-data | modulation-of-the-antidepressant-effects-of-ketamine-by-the-mtorc1-inhibitor-rap
High-Dose IV Ketamine Infusion for Combat-Related PTSD in Veterans: Prospective Observational Case Series (Ross 2019, Ann Clin Psychiatry)
TrialPaperROSS-2019-ACP-KETAMINE-PTSD-VETERANS
Ketamine infusion
Ketamine
1.94 mg/kg
IV | titrated
six 1-hour infusions over a 2-to 3-week period | 6 doses

First infusion began at 1 mg/kg (max 60 mg); subsequent doses were adjusted based on patient response to achieve PTR. Mean dose was 1.94 mg/kg.

Not reviewed
existing-data | high-dose-ketamine-infusion-for-the-treatment-of-posttraumatic-stress-disorder-i
IM Ketamine vs Oral Ketamine vs ECT in Major Depressive Disorder with Suicidal Ideation: A Randomised Pilot Study (Kheirabadi 2020, Isfahan)
TrialPaperKHEIRABADI-2020-JCP-KETAMINE-ECT-MDD
IM Ketamine
Ketamine
0.5 mg/kg
IM | multi-dose
6 to 9 injections during 3 weeks (with a 2- to 3-day interval) | 9 doses

Racemic ketamine (R-ketamine) administered in gluteus medius site.

Not reviewed
existing-data | comparison-of-rapid-antidepressant-and-antisuicidal-effects-of-intramuscular-ket
IM Ketamine vs Oral Ketamine vs ECT in Major Depressive Disorder with Suicidal Ideation: A Randomised Pilot Study (Kheirabadi 2020, Isfahan)
TrialPaperKHEIRABADI-2020-JCP-KETAMINE-ECT-MDD
Oral Ketamine
Ketamine
1 mg/kg
Oral | multi-dose
every 2 to 3 days up to 6 to 9 sessions during 3 weeks | 9 doses

R-ketamine administered with flavors and sweeteners to eliminate bitter taste.

Not reviewed
existing-data | comparison-of-rapid-antidepressant-and-antisuicidal-effects-of-intramuscular-ket
Intranasal Ketamine vs Midazolam for TRD: Double-Blind Parallel Pilot RCT (Gálvez 2018, Thompson Institute / Otago)
TrialPaperGALVEZ-2018-JPSYCHOPHARM-INTRANASAL-KETAMINE-TRD-PILOT
Ketamine
Ketamine
100 mg
Intranasal | multi-dose
three times a week for 2 weeks, then weekly for 2 weeks | 8 doses

Each treatment consisted of 10 separate IN sprays, self-administered 5 min apart (later modified to 5 min intervals between sprays due to tolerability).

Not reviewed
existing-data | repeated-intranasal-ketamine-for-treatment-resistant-depression-the-way-to-go-re
Intraoperative Ketamine Versus Saline in Depressed Patients Undergoing Anesthesia for Non-cardiac Surgery
TrialPaperNCT03861988
Ketamine (double blind)
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Infusion over 40 minutes (0.5 mg/kg).

Not reviewed
existing-data | trial-of-ketamine-masked-by-surgical-anesthesia-in-depressed-patients
Intraoperative Ketamine Versus Saline in Depressed Patients Undergoing Anesthesia for Non-cardiac Surgery
TrialPaperNCT03861988
Ketamine (open label)
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Infusion over 40 minutes (0.5 mg/kg).

Not reviewed
existing-data | trial-of-ketamine-masked-by-surgical-anesthesia-in-depressed-patients
Intravenous Arketamine for Treatment-Resistant Depression: Open-Label Pilot Study (UMIN000038347, Federal University of Bahia, Brazil)
TrialPaperUMIN000038347
Arketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

delivered over 40 min

Not reviewed
existing-data | intravenous-arketamine-for-treatment-resistant-depression-open-label-pilot-study
Intravenous Ketamine Plus Neurocognitive Training for Depression
TrialPaperNCT03237286
Ketamine + Cognitive Training
Ketamine
0.5 mg/kg
IV
single infusion | 1 dose

Subanesthetic intravenous ketamine infusion over 40 minutes.

Not reviewed
existing-data | a-novel-brief-fully-automated-intervention-to-extend-the-antidepressant-effect-o
Intravenous Ketamine Plus Neurocognitive Training for Depression
TrialPaperNCT03237286
Ketamine + Sham Training
Ketamine
0.5 mg/kg
IV
single infusion | 1 dose

Subanesthetic intravenous ketamine infusion over 40 minutes.

Not reviewed
existing-data | a-novel-brief-fully-automated-intervention-to-extend-the-antidepressant-effect-o
IV Ketamine + Propofol-ECT for Treatment-Resistant Depression: Pilot fMRI Study (Zhang 2020, Tianjin Anding Hospital)
TrialPaperZHANG-2020-PSYCHRES-KETAMINE-ECT-TIANJIN
Ketamine plus propofol-ECT
Ketamine
0.5 mg/kg
IV | multi-dose
six times within 14 days | 6 doses

Injected at 10:00 pm the day before propofol-ECT

Not reviewed
existing-data | ketamine-plus-propofol-electroconvulsive-therapy-ect-transiently-improves-the-an
IV Ketamine for Adolescents with Treatment-Resistant Depression: Open-Label Pilot (Cullen 2018, University of Minnesota)
TrialPaperNCT02078817
Ketamine
Ketamine
0.5 mg/kg
IV | multi-dose
six infusions over 2 weeks | 6 doses

Initial dosing for first 5 participants was based on ideal body weight, then switched to actual body weight for subsequent participants.

Not reviewed
existing-data | intravenous-ketamine-for-adolescents-with-treatment-resistant-depression-an-open
IV Ketamine Series for MDD/PTSD: Epigenetic Clock and DNA Methylation Study (Wild Health 2024, Lexington KY)
TrialPaperWILD-HEALTH-2024-BIORXIV-KETAMINE-EPIGENETICS-MDD-PTSD
Ketamine infusion series
Ketamine
0.5 mg/kg
IV | multi-dose
six infusions over 2-3 weeks | 6 doses

Subanesthetic dose

Not reviewed
existing-data | ketamine-treatment-effects-on-dna-methylation-and-epigenetic-biomarkers-of-aging
KET01 Oral Prolonged-Release Ketamine for TRD: 3-Arm RCT (Colla 2024, 3 Swiss Hospitals)
TrialPaperCOLLA-2024-JPSYCHRES-KET01-ORAL-PR-KETAMINE-SWISS
KET01 160mg
Ketamine
160 mg
Oral | multi-dose
twice daily | 14 doses

Prolonged-release formulation (KET01); administered as 80 mg twice a day.

Not reviewed
existing-data | oral-prolonged-release-ketamine-in-treatment-resistant-depression-a-double-blind
KET01 Oral Prolonged-Release Ketamine for TRD: 3-Arm RCT (Colla 2024, 3 Swiss Hospitals)
TrialPaperCOLLA-2024-JPSYCHRES-KET01-ORAL-PR-KETAMINE-SWISS
KET01 240mg
Ketamine
240 mg
Oral | multi-dose
twice daily | 14 doses

Prolonged-release formulation (KET01); administered as 120 mg twice a day.

Not reviewed
existing-data | oral-prolonged-release-ketamine-in-treatment-resistant-depression-a-double-blind
Ketamine + Cognitive Training for Suicidality in the Medical Setting: Pilot
TrialPaperNCT04154150
Ketamine-treated sample
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose
Not reviewed
existing-data | a-pilot-study-of-ketamine-infusion-after-suicide-attempt-new-frontiers-in-treati
Ketamine and Global Brain Connectivity in MDD: Open-Label fMRI Study (Abdallah 2017, Yale)
TrialPaperABDALLAH-2017-NPP-KETAMINE-GBC-MDD-YALE
MDD Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

administered via infusion pump over 40 min

Not reviewed
existing-data | ketamine-treatment-and-global-brain-connectivity-in-major-depression
Ketamine and Mindfulness Based Cognitive Therapy (MBCT) in Treatment of Post-Traumatic Stress Disorder (PTSD): Comparison of Treatment Efficacy and Metabolomic Profiles
TrialPaperNCT02766192
TIMBER-K
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

(R,S)-ketamine infusion; combined with 12 TIMBER sessions (3 in first week, then weekly)

Not reviewed
existing-data | trauma-interventions-using-mindfulness-based-extinction-and-reconsolidation-timb
Ketamine and Mindfulness Based Cognitive Therapy (MBCT) in Treatment of Post-Traumatic Stress Disorder (PTSD): Comparison of Treatment Efficacy and Metabolomic Profiles
TrialPaperNCT02766192
TIMBER-K (Crossover)
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Crossover arm for patients experiencing sustained relapse

Not reviewed
existing-data | trauma-interventions-using-mindfulness-based-extinction-and-reconsolidation-timb
Ketamine as a Rapid Treatment for Post-traumatic Stress Disorder (PTSD)
TrialPaperNCT00749203
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infused over 40 minutes

Not reviewed
existing-data | efficacy-of-intravenous-ketamine-for-treatment-of-chronic-posttraumatic-stress-d
Ketamine as a Treatment for Post-Traumatic Stress Disorder (PTSD)
TrialPaperNCT02397889
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

administered over 40 min

Not reviewed
existing-data | neuroimaging-correlates-and-predictors-of-response-to-repeated-dose-intravenous-
Ketamine as an Adjunctive Therapy for Major Depression (KARMA-dep)
TrialPaperNCT03256162
Ketamine
Ketamine
0.05 mg/kg
IV
weekly | 4 doses

Four once-weekly infusions; blood sampling at four time-points during first infusion and before final infusion for biomarker studies.

Not reviewed
existing-data | ketamine-as-an-adjunctive-therapy-for-major-depression-a-randomised-controlled-p
Ketamine Autonomic / EEG Biomarkers in MDD: Pooled Czech Controlled Trials 2010–2015 (Meyer / Horacek / Novak, NIMH CZ)
TrialPaperHORACEK-NOVAK-2010-2015-CLINNEURO-KETAMINE-MDD-CZECH
Ketamine
Ketamine
0.54 mg/kg
IV | fixed
single dose | 1 dose

Loading dose of 0.27 mg/kg for the first 10 min, followed by an infusion of 0.27 mg/kg within 20 min. Total dose 0.54 mg/kg within 30 min.

Not reviewed
existing-data | predictive-value-of-heart-rate-in-treatment-of-major-depression-with-ketamine-in
Ketamine for Depression and Alcohol Dependence
TrialPaperNCT01551329
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Administered as a 40-minute infusion (Ketalar 0.5 mg/kg).

Not reviewed
existing-data | association-of-combined-naltrexone-and-ketamine-with-depressive-symptoms-in-a-ca
Ketamine for Mood Disorders With Suicidal Ideation
TrialPaperNCT04099771
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infused over 40 minutes; dose based on weight.

Not reviewed
existing-data | a-feasibility-study-of-low-dose-ketamine-for-acute-management-of-suicidal-ideati
Ketamine for Older Adults Pilot
TrialPaperNCT04504175
Ketamine IV
Ketamine
0.5 mg/kg
IV
twice weekly then weekly | 12 doses

Infused over 40 minutes; acute: twice weekly for 4 weeks (8); continuation: weekly for 4 weeks (4).

Not reviewed
existing-data | intravenous-ketamine-for-late-life-treatment-resistant-depression-a-pilot-study-
Ketamine for Reduction of Alcoholic Relapse (KARE)
TrialPaperNCT02649231
Ketamine+Education
Ketamine
0.8 mg/kg
IV | multi-dose
three sessions | 3 doses

0.8 mg/kg IV infusion over 45 minutes per session

Not reviewed
existing-data | adjunctive-ketamine-with-relapse-prevention-based-psychological-therapy-in-the-t
Ketamine for Reduction of Alcoholic Relapse (KARE)
TrialPaperNCT02649231
Ketamine+Psychotherapy
Ketamine
0.8 mg/kg
IV | multi-dose
three sessions | 3 doses

0.8 mg/kg IV infusion over 45 minutes per session

Not reviewed
existing-data | adjunctive-ketamine-with-relapse-prevention-based-psychological-therapy-in-the-t
Ketamine for Suicidality in Bipolar Depression
TrialPaperNCT01944293
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infusion over ~40 minutes

Not reviewed
existing-data | ketamine-versus-midazolam-in-bipolar-depression-with-suicidal-thoughts-a-pilot-m
Ketamine for Treatment Resistant Late-Life Depression
TrialPaperNCT02556606
Ketamine 0.10 mg/kg
Ketamine
0.1 mg/kg
IV | fixed
single dose | 1 dose

40-minute infusion.

Not reviewed
existing-data | identification-of-an-optimal-dose-of-intravenous-ketamine-for-late-life-treatmen
Ketamine for Treatment Resistant Late-Life Depression
TrialPaperNCT02556606
Ketamine 0.25 mg/kg
Ketamine
0.25 mg/kg
IV | fixed
single dose | 1 dose

40-minute infusion.

Not reviewed
existing-data | identification-of-an-optimal-dose-of-intravenous-ketamine-for-late-life-treatmen
Ketamine for Treatment Resistant Late-Life Depression
TrialPaperNCT02556606
Ketamine 0.50 mg/kg
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

40-minute infusion.

Not reviewed
existing-data | identification-of-an-optimal-dose-of-intravenous-ketamine-for-late-life-treatmen
Ketamine in the Treatment of Suicidal Depression
TrialPaperNCT01700829
Ketamine
Ketamine
0.5 mg/kg
IV
single dose

IV infusion over ~40 minutes

Not reviewed
existing-data | ketamine-for-rapid-reduction-of-suicidal-thoughts-in-major-depression-a-midazola
Ketamine Infusion for Social Anxiety Disorder
TrialPaperNCT02083926
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

administered over 40 min

Not reviewed
existing-data | ketamine-for-social-anxiety-disorder-a-randomized-placebo-controlled-crossover-t
Ketamine Infusion for Treatment-resistant Major Depressive Disorder
TrialPaperNCT01582945
Ketamine IV
Ketamine
0.5 mg/kg
IV
twice weekly | 6 doses

Infusion over 45 minutes; non-responders may escalate to 0.75 mg/kg after 3 infusions.

Not reviewed
existing-data | repeat-dose-ketamine-augmentation-for-treatment-resistant-depression-with-chroni
Ketamine Infusions for PTSD and Treatment-Resistant Depression
TrialPaperNCT02577250
Six ketamine infusions
Ketamine
0.5 mg/kg
IV
six infusions over 2 weeks | 6 doses

Infusions on Mon/Wed/Fri; 3 h observation post-infusion.

Not reviewed
existing-data | efficacy-safety-and-durability-of-repeated-ketamine-infusions-for-comorbid-postt
Ketamine Modulation of Reward Processing fMRI in Remitted Unmedicated MDD: Double-Blind Crossover (Kotoula 2022)
TrialPaperKOTOULA-2022-BPSC-KETAMINE-REWARD-REMISSION
Ketamine 0.5mg/kg
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

40min steady state infusion

Not reviewed
existing-data | ketamine-modulates-the-neural-correlates-of-reward-processing-in-unmedicated-pat
Ketamine Plus Lithium in Treatment-Resistant Depression
TrialPaperNCT01880593
Ketamine + Lithium
Ketamine
Not reported
IV
multiple infusions

Repeated ketamine infusions over 1 week per protocol.

Not reviewed
altered-peripheral-immune-profiles-in-treatment-resistant-depression-response-to
Ketamine Plus Lithium in Treatment-Resistant Depression
TrialPaperNCT01880593
Ketamine + Placebo
Ketamine
Not reported
IV
multiple infusions

Repeated ketamine infusions over 1 week per protocol.

Not reviewed
altered-peripheral-immune-profiles-in-treatment-resistant-depression-response-to
Ketamine Psychoactive Effects in Cocaine Dependence: Double-Blind 3-Way Crossover Pilot (Dakwar / Nunes, NYSPI Columbia 2014)
TrialPaperDAKWAR-2014-DRUGALCDEP-KETAMINE-COCAINE-CROSSOVER-NYSPI
Ketamine 0.41mg/kg
Ketamine
0.41 mg/kg
IV | fixed
single dose | 1 dose

52-min infusion (2-min bolus followed by 50 min infusion)

Not reviewed
existing-data | therapeutic-infusions-of-ketamine-do-the-psychoactive-effects-matter
Ketamine Psychoactive Effects in Cocaine Dependence: Double-Blind 3-Way Crossover Pilot (Dakwar / Nunes, NYSPI Columbia 2014)
TrialPaperDAKWAR-2014-DRUGALCDEP-KETAMINE-COCAINE-CROSSOVER-NYSPI
Ketamine 0.71mg/kg
Ketamine
0.71 mg/kg
IV | fixed
single dose | 1 dose

52-min infusion (2-min bolus followed by 50 min infusion)

Not reviewed
existing-data | therapeutic-infusions-of-ketamine-do-the-psychoactive-effects-matter
Ketamine Therapy For Internalizing Disorders: Is There A Single Mechanism?
TrialPaperACTRN12619000311156
Ketamine 0.5 mg/kg IM
Ketamine
0.5 mg/kg
IM
single dose in one crossover period | 1 dose

Adjunct/co-administered substances noted in arm: Ondansetron 4 mg Oral antiemetic.

Not reviewed
existing-data | ketamine-for-treatment-resistant-obsessive-compulsive-disorder-double-blind-acti
Ketamine Therapy For Internalizing Disorders: Is There A Single Mechanism?
TrialPaperACTRN12619000311156
Ketamine 1.0 mg/kg IM
Ketamine
1 mg/kg
IM
single dose in one crossover period | 1 dose

Adjunct/co-administered substances noted in arm: Ondansetron 4 mg Oral antiemetic.

Not reviewed
existing-data | ketamine-for-treatment-resistant-obsessive-compulsive-disorder-double-blind-acti
Ketamine-Assisted Psychotherapy for Chronic Pain and Comorbid Depression: Pilot Study (Batievsky 2023, Front Pain Res)
TrialPaperBATIEVSKY-2023-FRONTPAIN-KAP-CHRONIC-PAIN
Psychedelic approach
Ketamine
70 mg
IM | multi-dose
twice weekly | 12 doses

Dosages ranged from 40 to 100 mg. Regimen: session 1 (40 & 50mg), session 2 (50 & 60mg), session 3 (60 & 70mg), session 4 (70 & 80mg), session 5 (80 & 90mg), session 6 (90 & 100mg). 6 sessions over 6 weeks.

Not reviewed
existing-data | ketamine-assisted-psychotherapy-treatment-of-chronic-pain-and-comorbid-depressio
Ketamine-Assisted Psychotherapy for Chronic Pain and Comorbid Depression: Pilot Study (Batievsky 2023, Front Pain Res)
TrialPaperBATIEVSKY-2023-FRONTPAIN-KAP-CHRONIC-PAIN
Psycholytic approach
Ketamine
50 mg
Sublingual | multi-dose
weekly | 6 doses

Dosages ranged from 25 to 75 mg. Regimen: sessions 1 & 2 (25mg), sessions 3 & 4 (50mg), sessions 5 & 6 (75mg). 6 sessions over 6 weeks. Lozenges held/swished for 15 min.

Not reviewed
existing-data | ketamine-assisted-psychotherapy-treatment-of-chronic-pain-and-comorbid-depressio
Low dose oral ketamine treatment on post-traumatic stress disorder (PTSD) (OKTOP): open-label pilot study
TrialPaperACTRN12618001965291
Low-dose oral ketamine
Ketamine
Needs review
Oral | titrated
once weekly for six weeks | 6 doses

Paper describes low-dose oral ketamine in a titrating-up manner; exact dose schedule is in the primary OKTOP report, not this biomarker paper. Supplement is not parsed as PDF: paper:blood-biomarker-changes-and-relationships-after-low-dose-oral-ketamine-treatment-for-post / Supplementary Material 1 | Supplement is not parsed as PDF: paper:blood-biomarker-changes-and-relationship...

Needs Review
needs-review | blood-biomarker-changes-and-relationships-after-low-dose-oral-ketamine-treatment-for-post
Low-Dose Ketamine Effects on PFC and Amygdala in TRD: Double-Blind 3-Arm RCT with FDG-PET (Li CT / Su TP, TVGH Taiwan; UMIN000016985)
TrialPaperUMIN000016985
Ketamine 0.2mg/kg
Ketamine
0.2 mg/kg
IV | fixed
single dose | 1 dose

40-min constant intravenous infusion

Not reviewed
existing-data | the-effects-of-low-dose-ketamine-on-the-prefrontal-cortex-and-amygdala-in-treatm
Low-Dose Ketamine Effects on PFC and Amygdala in TRD: Double-Blind 3-Arm RCT with FDG-PET (Li CT / Su TP, TVGH Taiwan; UMIN000016985)
TrialPaperUMIN000016985
Ketamine 0.5mg/kg
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

40-min constant intravenous infusion

Not reviewed
existing-data | the-effects-of-low-dose-ketamine-on-the-prefrontal-cortex-and-amygdala-in-treatm
Multiple IV Ketamine Infusions for Major Depressive Disorder: Open-Label Study (Zheng 2019, Guangzhou Brain Hospital)
TrialPaperChiCTR-OOC-17012239
Six ketamine infusions
Ketamine
0.5 mg/kg
IV | multi-dose
three times weekly | 6 doses

Infusions administered over 40 minutes; administered over a course of 12 days.

Not reviewed
existing-data | investigation-of-medical-effect-of-multiple-ketamine-infusions-on-patients-with-
Multiple vs Single Ketamine-Assisted Psychotherapy (KPT) for Heroin Dependence: Evaluator-Blind RCT (Krupitsky, St Petersburg Russia 2007)
TrialPaperKRUPITSKY-2007-JPSYCHOACTIVEDRUGS-KPT-HEROIN-RUSSIA
Multiple KPT group
Ketamine
2 mg/kg
IM | multi-dose
three sessions at monthly intervals | 3 doses

Sessions were 1.5 to 2 hours long; accompanied by psychotherapy.

Not reviewed
existing-data | single-versus-repeated-sessions-of-ketamine-assisted-psychotherapy-for-people-wi
Multiple vs Single Ketamine-Assisted Psychotherapy (KPT) for Heroin Dependence: Evaluator-Blind RCT (Krupitsky, St Petersburg Russia 2007)
TrialPaperKRUPITSKY-2007-JPSYCHOACTIVEDRUGS-KPT-HEROIN-RUSSIA
Single KPT group
Ketamine
2 mg/kg
IM | fixed
single dose | 1 dose

Session was 1.5 to 2 hours long; accompanied by psychotherapy.

Not reviewed
existing-data | single-versus-repeated-sessions-of-ketamine-assisted-psychotherapy-for-people-wi
Open-Label IV Ketamine Series for MDD/Bipolar Depression with Pain Mediation Analysis (Wu 2023, China)
TrialPaperWU-2023-JAD-KETAMINE-PAIN-SOCIAL-MDD-CHINA
Ketamine
Ketamine
0.5 mg/kg
IV | multi-dose
repeated infusions | 6 doses

Administered via intravenous pump with 0.9% sodium chloride injection over 40 min; infusions occurred Monday, Wednesday, and Friday over a two-week period.

Not reviewed
existing-data | pain-mediates-the-improvement-of-social-functions-of-repeated-intravenous-ketami
Opiate Suicide Study in Patients With Major Depression
TrialPaperNCT04116528
Ketamine + Buprenorphine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infusion over 40 minutes

Not reviewed
existing-data | low-dose-buprenorphine-following-ketamine-treatment-for-suicidal-ideation-in-major-depressive
Opiate Suicide Study in Patients With Major Depression
TrialPaperNCT04116528
Ketamine + Placebo
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infusion over 40 minutes

Not reviewed
existing-data | low-dose-buprenorphine-following-ketamine-treatment-for-suicidal-ideation-in-major-depressive
Optimization of IV Ketamine for Treatment Resistant Depression
TrialPaperNCT00768430
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

Infused over 40 minutes

Not reviewed
existing-data | antidepressant-efficacy-of-ketamine-in-treatment-resistant-major-depression-a-tw
Oral Ketamine vs Diclofenac for Mild-to-Moderate Depression in Chronic Headache Patients: A Double-Blind RCT (IRCT201508201556N80, Imam Hospital Tehran)
TrialPaperIRCT201508201556N80
Ketamine
Ketamine
50 mg
Oral | multi-dose
three times daily | 126 doses

Fixed daily dosage of 150 mg

Not reviewed
existing-data | efficacy-and-safety-of-oral-ketamine-versus-diclofenac-to-alleviate-mild-to-mode
PET Imaging of mGLuR5 With Drug Challenge
TrialPaperNCT01691092
Ketamine
Ketamine
Not reported
IV
single dose

Administered prior to one PET scan to induce glutamate release

Not reviewed
acute-cognitive-effects-of-single-dose-intravenous-ketamine-in-major-depressive-
Propofol-Enhanced Assessment of Ketamine for Chronic Pain and Depression (PEAK)
TrialPaperNCT06317636
Ketamine 0.5 mg/kg (under propofol sedation)
Ketamine
0.5 mg/kg
IV | fixed
single dose over 40 minutes | 1 dose

Adjunct/co-administered substances noted in arm: Propofol IV anxiolytic.

Not reviewed
existing-data | protocol-and-pilot-results-for-a-double-blind-randomized-placebo-controlled-trial-of-ketamine
Racemic Ketamine vs S(+)-Esketamine for TRD: Bicentric Double-Blind RCT (UFBA Brazil, UMIN000032355)
TrialPaperUMIN000032355
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Infusion duration of 40 min

Not reviewed
existing-data | neurocognitive-aspects-of-ketamine-and-esketamine-on-subjects-with-treatment-res
Rapid Antidepressant Effects of Ketamine in Major Depression
TrialPaperNCT00088699
Ketamine→Placebo
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

40-minute infusion

Not reviewed
existing-data | replication-of-ketamines-antidepressant-efficacy-in-bipolar-depression-a-randomi
Rapid Antidepressant Effects of Ketamine in Major Depression
TrialPaperNCT00088699
Placebo→Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

40-minute infusion

Not reviewed
existing-data | replication-of-ketamines-antidepressant-efficacy-in-bipolar-depression-a-randomi
Single Bolus Low-Dose Ketamine for Prevention of Postpartum Depression After Caesarean Section: A Randomized, Double-Blind, Placebo-Controlled Trial
TrialPaperChiCTR-IPR-15007159
Ketamine
Ketamine
0.25 mg/kg
IV | fixed
single dose | 1 dose

diluted to 10 mL with 0.9% saline

Not reviewed
existing-data | single-bolus-low-dose-of-ketamine-does-not-prevent-postpartum-depression-a-rando
Single IV Ketamine for Bipolar Depression: Open Neurocognitive Pilot Study (Permoda-Osip / Rybakowski, Poznan Poland)
TrialPaperRYBAKOWSKI-2014-PHARMACOPSYCHIATRY-KETAMINE-BIPOLAR-POLAND
Ketamine infusion
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Performed between 8:00-8:45 h

Not reviewed
existing-data | single-ketamine-infusion-and-neurocognitive-performance-in-bipolar-depression
Single IV Ketamine vs Midazolam for TRD with Suicidal Ideation: dPFC Volumetric RCT (Li WC / Su TP / Li CT, TVGH Taiwan)
TrialPaperSU-2023-JAD-KETAMINE-DLPFC-TRD-SUICIDAL-TAIWAN
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

Low-dose ketamine infusion

Not reviewed
existing-data | right-dorsolateral-prefrontal-cortex-volumetric-reduction-is-associated-with-ant
Study of IV Ketamine for Emergency Department Treatment of Adolescent Suicidal Ideation (KSI)
TrialPaperNCT06366334
Ketamine
Ketamine
0.5 mg/kg
IV
single dose | 1 dose

1 mg/mL solution; 50 mg maximum; infusion over 40 minutes.

Not reviewed
existing-data | single-dose-iv-ketamine-for-adolescent-suicidal-ideation-in-the-emergency-department-a-pilot
Study of Ketamine for Depression in Cancer Patients Receiving Palliative Care
TrialPaperNCT03410446
Ketamine
Ketamine
50-150 mg
Other | multi-dose
three sessions | 3 doses

Intranasal: Day 1 50 mg; Day 4 50–100 mg; Day 7 50–150 mg.

Not reviewed
existing-data | a-phase-ii-open-label-clinical-trial-of-intranasal-ketamine-for-depression-in-pa
Sub-Anaesthetic Ketamine at C-Section to Prevent Postpartum Depression: Double-Blind RCT (Alipoor / Sarkoohi, Rafsanjan Iran 2021)
TrialPaperIRCT2016122726971N2
Ketamine-Nesdonal group
Ketamine
0.5 mg/kg
IV | fixed
single dose during anesthesia induction | 1 dose

Sub-anesthetic ketamine dose administered with Nesdonal during induction of general anesthesia. Adjunct/co-administered substances noted in arm: Nesdonal (thiopental sodium) 1-2 mg/kg IV general anesthesia induction.

Not reviewed
existing-data | the-effect-of-ketamine-on-preventing-postpartum-depression
The BIO-K Study: A Single-Arm, Open-Label, Biomarker Development Clinical Trial of Ketamine for Non-Psychotic Unipolar Major Depression and Bipolar I or II Depression.
TrialPaperNCT03156504
Ketamine
Ketamine
0.5 mg/kg
IV
three sessions | 3 doses

Each infusion given over 100 minutes; blood samples before and after dosing for biomarker development.

Not reviewed
existing-data | patients-recovery-and-non-recovery-narratives-after-intravenous-ketamine-for-tre
The Effect of Brief Potent Glutamatergic Modulation on Cocaine Dependence
TrialPaperNCT01535937
Ketamine
Ketamine
0.5 mg/kg
IV | fixed
single dose | 1 dose

40-minute slow-drip infusion; combined with MBRP

Not reviewed
existing-data | a-single-ketamine-infusion-combined-with-mindfulness-based-behavioral-modificati
The Effect of Glutamatergic Modulation on Cocaine Self-administration
TrialPaperNCT02596022
Ketamine
Ketamine
0.71 mg/kg
IV | fixed
single dose | 1 dose

administered as 0.11 mg/kg 2-min bolus followed by 0.60 mg/kg in saline over 50 min

Not reviewed
existing-data | cocaine-self-administration-disrupted-by-the-n-methyl-d-aspartate-receptor-antag
Three-Arm Double-Blind RCT of Ketamine Dose in ECT Anaesthesia for TRD (Zhong 2016, China)
TrialPaperZHONG-2016-JAD-KETAMINE-ECT-CHINA
Ketamine
Ketamine
0.8 mg/kg
IV | multi-dose
Each ECT session, three times per week | 8 doses

Administered as anesthesia for the eight ECT treatments.

Not reviewed
existing-data | mood-and-neuropsychological-effects-of-different-doses-of-ketamine-in-electrocon
Three-Arm Double-Blind RCT of Ketamine Dose in ECT Anaesthesia for TRD (Zhong 2016, China)
TrialPaperZHONG-2016-JAD-KETAMINE-ECT-CHINA
Ketamine + Propofol
Ketamine
0.5 mg/kg
IV | multi-dose
Each ECT session, three times per week | 8 doses

Subanesthetic ketamine dose administered as part of anesthesia for the eight ECT treatments.

Not reviewed
existing-data | mood-and-neuropsychological-effects-of-different-doses-of-ketamine-in-electrocon
Treatment Resistant Depression (Pilot)
TrialPaperNCT01179009
100-hour ketamine
Ketamine
0.002 mg/kg/min
IV
single infusion

100-hour continuous infusion (reported rate 0.00225 mg/kg/min).

Not reviewed
existing-data | prolonged-ketamine-infusion-modulates-limbic-connectivity-and-induces-sustained-
Treatment Resistant Depression (Pilot)
TrialPaperNCT01179009
40-minute ketamine
Ketamine
Not reported
IV
single infusion

Standard 40-minute IV ketamine infusion (per protocol).

Not reviewed
prolonged-ketamine-infusion-modulates-limbic-connectivity-and-induces-sustained-

Limitations

  • Rows are drawn from structured clinical trial intervention records linked to human clinical papers; absence from this table is not proof that a source never reported dosing.
  • Dose units are preserved as reported, so mg, mg/kg, ml/kg, and other units should not be read as directly comparable.
  • 6 target-compound intervention rows did not have a displayable numeric dose and remain visible through coverage status rather than guessed.
  • 1 dose row still carries a needs-review marker from the source review workflow.
  • This summary covers 155 eligible clinical source papers currently linked to the pair.
  • This page is an evidence navigation aid and does not recommend dosing.

Source papers

A Randomized Double-Blind Midazolam-Controlled Trial of Low-Dose Ketamine Infusion in Patients With Treatment-Resistant Depression and Prominent Suicidal Ideation
International Journal of Neuropsychopharmacology | 2023
Spectral changes of EEG following a 6-week low-dose oral ketamine treatment in adults with major depressive disorder and chronic suicidality
International Journal of Neuropsychopharmacology | 2023
Central nervous system-related safety and tolerability of add-on ketamine to antidepressant medication in treatment-resistant depression: focus on the unique safety profile of bipolar depression
Therapeutic Advances in Psychopharmacology | 2021
Randomized Placebo-Controlled Phase 2 Study of Extended-Release Ketamine Tablets (R-107) for Treatment-Resistant Depression - the BEDROC Study
Nature Medicine | 2024
Ketamine improves short-term plasticity in depression by enhancing sensitivity to prediction errors
European Neuropsychopharmacology | 2020
A Double-Blind, Randomized, Placebo-Controlled, Dose-Frequency Study of Intravenous Ketamine in Patients With Treatment-Resistant Depression
American Journal of Psychiatry | 2016
Rapid and longer-term antidepressant effects of repeated-dose intravenous ketamine for patients with unipolar and bipolar depression
Journal of Psychiatric Research | 2018
Low dose oral ketamine treatment in chronic suicidality: An open-label pilot study
Translational Psychiatry | 2021
Antidepressant effects of ketamine in depressed patients
Biological Psychiatry | 2000
Ketamine Effects on EEG during Therapy of Treatment-Resistant Generalized Anxiety and Social Anxiety
International Journal of Neuropsychopharmacology | 2018
Neurocognitive effects of subanesthetic serial ketamine infusions in treatment resistant depression
Journal of Affective Disorders | 2023
Dose-related effects of ketamine for antidepressant-resistant symptoms of posttraumatic stress disorder in veterans and active duty military: a double-blind, randomized, placebo-controlled multi-center clinical trial
Neuropsychopharmacology | 2022

Source trials

A Double-Blind Randomized Controlled Trial Using a Low Dose of Ketamine vs Active Placebo in Treating Severe Depression and Suicide
Other | UMIN000033916
A longitudinal open-label, dose-ranging clinical trial to evaluate the effectiveness of oral ketamine, an NMDA (N-methyl-D-aspartate) receptor antagonist, in patients who are experiencing chronic suicidal ideation
ANZCTR | ACTRN12618001937202
A Naturalistic Study of Ketamine for Treatment Resistant Mood Disorders
CTG | NCT04226963
A Phase 2a Proof-of-Concept Study of R-107 (Extended-Release Ketamine Tablets) for the Treatment of Refractory Major Depressive Disorder (BEDROC)
ANZCTR | ACTRN12618001042235
A randomised, double blind, active placebo-controlled crossover trial to evaluate the short term efficacy of an N-Methyl-D-Aspartate antagonist for patients with treatment resistant depression
ANZCTR | ACTRN12615000573550
A Study of Ketamine in Patients With Treatment-resistant Depression
CTG | NCT01627782
An exploratory study of antidepressant treatment using ketamine for treatment-resistant depression
ChiCTR | ChiCTR-OOC-17012239
An open-label clinical trial of oral ketamine, an NMDA (N-methyl-D-aspartate) receptor antagonist, with weekly dosing over six weeks, in 25-50 patients who are experiencing chronic suicidal ideation.
ANZCTR | ACTRN12618001412224
Antidepressant Effects of Ketamine in Depressed Patients: A Randomized Double-Blind Placebo-Controlled Crossover Pilot
Other | BERMAN-2000-BP-KETAMINE-MDD
Ascending-Dose Subcutaneous Ketamine for Treatment-Refractory Anxiety Disorders: Dose-Finding Study (Glue 2017, University of Otago, ANZCTR)
Other | GLUE-2017-JPP-KETAMINE-ANXIETY-ANZCTR
Biomarkers of Fast Acting Therapies in Major Depression
CTG | NCT02165449
CAP-Ketamine for Antidepressant Resistant PTSD
ClinicalTrials.gov | NCT02655692