Cochrane · systematic review · CD011612

Ketamine and other glutamate receptor modulators for depression in adults with unipolar major depressive disorder

Dean, RL, Hurducas, C, Hawton, K, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

Common Mental Disorders2 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
15
current version
GRADE rated
12
No studies
3
Included studies
NR
No studies 3 · 20%Ungraded 0 · 0%Very low 6 · 40%Low 3 · 20%Moderate 3 · 20%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Current version only

Ketamine compared to placebo for adults with unipolar major depressive disorder

Population: adults (aged 18 years+) with unipolar major depressive disorder
CD011612.PUB3 (current) · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Efficacy: number of participants who respond to treatment ‐ at 24 hours (Response)
Ketamine vs placebo
OR 3.94 [1.54, 10.1]NRVery low
Efficacy: number of participants who achieve remission ‐ at 24 hours (Remission)
Ketamine vs placebo
OR 5.6 [1.07, 29.46]NRVery low
Downgraded: risk of bias, inconsistency
Depression rating scale score ‐ at 24 hours
Ketamine vs placebo
no estimate extractedNRVery low
Acceptability: total dropouts№ of participants: 201(6 RCTs)
Ketamine vs placebo
OR 1.25 [0.19, 8.28]NRVery low
Acceptability: dropouts due to adverse effects ‐ not reported
Ketamine vs placebo
no estimate extractedNRNo studies

Ketamine compared to midazolam for adults with unipolar major depressive disorder

Population: adults (aged 18 years+) with unipolar major depressive disorder
CD011612.PUB3 (current) · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Efficacy: number of participants who respond to treatment ‐ at 24 hours
Ketamine vs midazolam
OR 2.48 [1, 6.18]NRVery low
Downgraded: risk of bias
Efficacy: number of participants who achieve remission ‐ at 24 hours
Ketamine vs midazolam
OR 2.21 [0.67, 7.32]NRLow
Downgraded: risk of bias, inconsistency
Depression rating scale score ‐ at 24 hours
Ketamine vs midazolam
no estimate extractedNRVery low
Downgraded: risk of bias
Acceptability: total dropouts№ of participants: 72(1 RCT)
Ketamine vs midazolam
OR 0.33 [0.05, 2.09]NRLow
Downgraded: risk of bias, inconsistency
Acceptability: dropouts due to adverse effects ‐ not reported
Ketamine vs midazolam
no estimate extractedNRNo studies

Esketamine compared to placebo for adults with unipolar major depressive disorder

Population: adults (aged 18 years+) with unipolar major depressive disorder
CD011612.PUB3 (current) · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Efficacy: number of participants who respond to treatment ‐ at 24 hours (Response)
Esketamine vs placebo
OR 2.11 [1.2, 3.68]NRLow
Downgraded: risk of bias
Efficacy: number of participants who achieve remission ‐ at 24 hours (Remission)
Esketamine vs placebo
OR 2.74 [1.71, 4.4]NRModerate
Downgraded: risk of bias
Depression rating scale score ‐ at 24 hours
Esketamine vs placebo
no estimate extractedNRModerate
Downgraded: risk of bias
Acceptability: total dropouts№ of participants: 773(5 RCTs)
Esketamine vs placebo
OR 1.58 [0.92, 2.73]NRModerate
Downgraded: risk of bias
Acceptability: dropouts due to adverse effects ‐ not reported
Esketamine vs placebo
no estimate extractedNRNo studies

Ketamine compared to placebo for depression in adults

Population: adults with depression
CD011612.PUB2 · 8 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
Ketamine vs placebo
OR 10.77 [2, 58]3 studies · 56 participantsLow
Response rate ‐ at 72 hours
Ketamine vs placebo
OR 12.59 [2.38, 66.73]3 studies · 56 participantsLow
Response rate ‐ at 1 week
Ketamine vs placebo
OR 3.41 [0.95, 12.27]3 studies · 99 participantsLow
Response rate ‐ at 2 weeks
Ketamine vs placebo
OR 0.93 [0.31, 2.83]1 study · 51 participantsLow
Remission rate ‐ at 1 week
Ketamine vs placebo
OR 7.24 [1.7, 30.81]3 studies · 99 participantsLow
Depression rating scale score ‐ at 1 week
Ketamine vs placebo
no estimate extracted4 studies · 98 participantsLow
Acceptability ‐ total dropouts
Ketamine vs placebo
OR 3.77 [0.97, 14.68]4 studies · 107 participantsLow
Acceptability ‐ dropouts due to adverse effects
Ketamine vs placebo
no estimate extractedNRNo studies

Ketamine compared to midazolam for depression in adults

Population: depression in adults
CD011612.PUB2 · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
Ketamine vs midazolam
OR 4.54 [1.58, 13.05]1 study · 72 participantsLow
Response rate ‐ at 72 hours
Ketamine vs midazolam
OR 5.4 [1.73, 16.85]1 study · 72 participantsLow
Response rate ‐ at 1 week
Ketamine vs midazolam
OR 4.24 [1.26, 14.28]1 study · 72 participantsLow
Remission rate ‐ at 1 week
Ketamine vs midazolam
OR 1.37 [0.42, 4.46]1 study · 72 participantsLow
Montgomery Asberg Rating Scale score ‐ at 1 week
Ketamine vs midazolam
no estimate extracted1 study · 67 participantsLow
Acceptability ‐ total dropouts
Ketamine vs midazolam
OR 0.33 [0.05, 2.09]1 study · 72 participantsLow
Acceptability ‐ dropouts due to adverse effects
Ketamine vs midazolam
no estimate extractedNRNo studies

Ketamine compared to thiopental for depression in adults

Population: depression in adults
CD011612.PUB2 · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 3 days
Ketamine vs thiopental
OR 2.64 [0.1, 69.88]1 study · 31 participantsVery low
Response rate ‐ at 4 weeks
Ketamine vs thiopental
OR 0.81 [0.05, 14.28]1 study · 31 participantsVery low
Hamilton Depression Rating Scale score ‐ at 2 weeks
Ketamine vs thiopental
no estimate extracted1 study · 29 participantsVery low
Acceptability ‐ total dropouts
Ketamine vs thiopental
OR 4.68 [0.21, 105.89]1 study · 31 participantsVery low
Remission
Ketamine vs thiopental
no estimate extractedNRNo studies
Acceptability ‐ dropouts due to adverse effects
Ketamine vs thiopental
no estimate extractedNRNo studies

AZD6765 compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
AZD6765 vs placebo
OR 7.74 [0.35, 170.1]1 study · 22 participantsVery low
Response rate ‐ at 72 hours
AZD6765 vs placebo
OR 2.74 [0.1, 74.87]1 study · 22 participantsVery low
Response rate ‐ at 1 week
AZD6765 vs placebo
OR 2.74 [0.1, 74.87]1 study · 22 participantsVery low
Remission rate ‐ at 1 week
AZD6765 vs placebo
OR 2.74 [0.1, 74.87]1 study · 22 participantsVery low
Montgomery Asberg Rating Scale score ‐ at 1 week
AZD6765 vs placebo
no estimate extracted1 study · 21 participantsVery low
Acceptability ‐ total dropouts
AZD6765 vs placebo
OR 2.74 [0.1, 74.87]1 study · 22 participantsVery low
Acceptability ‐ dropouts due to adverse effects
AZD6765 vs placebo
no estimate extractedNRNo studies

Atomoxetine compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 3 months
Atomoxetine vs placebo
OR 1.25 [0.63, 2.47]1 study · 146 participantsLow
Remission rate ‐ at 3 months
Atomoxetine vs placebo
OR 1.34 [0.67, 2.67]1 study · 146 participantsLow
Acceptability ‐ total dropouts
Atomoxetine vs placebo
OR 1.03 [0.44, 2.41]1 study · 146 participantsLow
Acceptability‐ dropouts due to adverse effects
Atomoxetine vs placebo
OR 1.88 [0.53, 6.74]1 study · 146 participantsLow
Hamilton Depression Rating Scale score ‐ at 3 months
Atomoxetine vs placebo
no estimate extracted1 study · 141 participantsLow

CP‐101,606 compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Response
CP‐101,606 vs placebo
no estimate extractedNRNo studies
Remission
CP‐101,606 vs placebo
no estimate extractedNRNo studies
Montgomery Asberg Rating Scale score ‐ at 1 week
CP‐101,606 vs placebo
no estimate extracted1 study · 26 participantsVery low
Acceptability ‐ total dropouts
CP‐101,606 vs placebo
OR 0.29 [0.06, 1.45]1 study · 30 participantsVery low
Acceptability‐ dropouts due to adverse events
CP‐101,606 vs placebo
no estimate extracted1 study · 30 participantsVery low

D‐cycloserine compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 2 weeks
D‐cycloserine vs placebo
OR 5.33 [0.51, 56.24]1 study · 26 participantsVery low
Response rate ‐ at 4 weeks
D‐cycloserine vs placebo
OR 3.44 [0.53, 22.43]1 study · 26 participantsVery low
Remission rate ‐ at 4 weeks
D‐cycloserine vs placebo
OR 9 [0.42, 194.07]1 study · 26 participantsVery low
Hamilton Depression Rating Scale score ‐ at 2 weeks
D‐cycloserine vs placebo
no estimate extracted1 study · 26 participantsVery low
Acceptability ‐ total dropouts
D‐cycloserine vs placebo
OR 3.6 [0.32, 40.23]1 study · 26 participantsVery low
Acceptability ‐ dropouts to due to adverse effects
D‐cycloserine vs placebo
no estimate extractedNRNo studies

MK‐0657 compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 5 questions
OutcomeEffectEvidenceStatus / GRADE
Montgomery Asberg Rating Scale score ‐ at 1 week
MK‐0657 vs placebo
no estimate extracted1 study · 5 participantsVery low
Response
MK‐0657 vs placebo
no estimate extractedNRNo studies
Remission
MK‐0657 vs placebo
no estimate extractedNRNo studies
Acceptability ‐ total dropouts
MK‐0657 vs placebo
no estimate extractedNRNo studies
Acceptability ‐ dropouts due to adverse effects
MK‐0657 vs placebo
no estimate extractedNRNo studies

Memantine compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 8 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 1 week
Memantine vs placebo
OR 1.07 [0.06, 18.82]2 studies · 63 participantsLow
Response rate ‐ at 2 weeks
Memantine vs placebo
OR 0.31 [0.01, 8.28]1 study · 32 participantsLow
Response rate ‐ at 4 weeks
Memantine vs placebo
OR 0.49 [0.11, 2.1]3 studies · 123 participantsModerate
Response rate ‐ at 3 months
Memantine vs placebo
OR 0.47 [0.18, 1.21]3 studies · 123 participantsModerate
Remission rate ‐ at 1 week
Memantine vs placebo
OR 6.11 [0.27, 138.45]2 studies · 63 participantsLow
Montgomery Asberg Rating Scale score ‐ at 1 week
Memantine vs placebo
no estimate extracted2 studies · 59 participantsLow
Acceptability ‐ total dropouts
Memantine vs placebo
OR 0.74 [0.24, 2.29]3 studies · 123 participantsModerate
Acceptability‐ dropouts due to adverse events
Memantine vs placebo
OR 0.67 [0.1, 4.33]2 studies · 63 participantsLow

N‐acetylcysteine compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 2 weeks
N‐acetylcysteine vs placebo
OR 0.77 [0.38, 1.55]1 study · 269 participantsLow
Response rate ‐ at 4 weeks
N‐acetylcysteine vs placebo
OR 0.91 [0.52, 1.61]1 study · 269 participantsLow
Response rate ‐ at 3 months
N‐acetylcysteine vs placebo
OR 1.38 [0.83, 2.3]1 study · 269 participantsLow
Remission rate ‐ at 2 weeks
N‐acetylcysteine vs placebo
OR 0.48 [0.12, 1.98]1 study · 269 participantsLow
Montgomery Asberg Rating Scale score ‐ at 2 weeks
N‐acetylcysteine vs placebo
no estimate extracted1 study · 252 participantsLow
Acceptability ‐ total dropouts
N‐acetylcysteine vs placebo
OR 0.67 [0.36, 1.24]1 study · 269 participantsLow
Acceptability‐ dropouts due to adverse events
N‐acetylcysteine vs placebo
OR 0.49 [0.04, 5.5]1 study · 269 participantsLow

Org 26576 compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 9 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
Org 26576 vs placebo
OR 0.84 [0.1, 6.87]2 studies · 54 participantsLow
Response rate ‐ at 72 hours
Org 26576 vs placebo
OR 0.8 [0.17, 3.89]2 studies · 54 participantsLow
Response rate ‐ at 1 week
Org 26576 vs placebo
OR 1.43 [0.33, 6.29]2 studies · 54 participantsLow
Response rate ‐ at 2 weeks
Org 26576 vs placebo
OR 2.24 [0.61, 8.22]2 studies · 54 participantsLow
Response rate ‐ at 4 weeks
Org 26576 vs placebo
OR 0.82 [0.18, 3.74]1 study · 30 participantsLow
Remission rate ‐ at 1 week
Org 26576 vs placebo
OR 1.61 [0.23, 11.17]2 studies · 54 participantsLow
Montgomery Asberg Rating Scale ‐ at 1 week
Org 26576 vs placebo
no estimate extracted2 studies · 54 participantsLow
Acceptability ‐ total dropouts
Org 26576 vs placebo
no estimate extractedNRNo studies
Acceptability ‐ dropouts due to adverse effects
Org 26576 vs placebo
OR 0.5 [0.05, 5.17]2 studies · 54 participantsUngraded

Riluzole compared to placebo for depression in adults

Population: depression in adults
CD011612.PUB2 · 9 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
Riluzole vs placebo
OR 1.23 [0.35, 4.36]1 study · 42 participantsLow
Response rate ‐ at 72 hours
Riluzole vs placebo
OR 2.62 [0.64, 10.61]1 study · 42 participantsLow
Response rate ‐ at 1 week
Riluzole vs placebo
OR 2.4 [0.51, 11.26]1 study · 42 participantsLow
Response rate ‐ at 2 weeks
Riluzole vs placebo
OR 1.41 [0.27, 7.26]1 study · 42 participantsLow
Response rate ‐ at 4 weeks
Riluzole vs placebo
OR 0.3 [0.03, 3.15]1 study · 42 participantsLow
Remission rate ‐ at 1 week
Riluzole vs placebo
OR 1 [0.18, 5.63]1 study · 42 participantsLow
Montgomery Asberg Rating Scale score ‐ at 1 week
Riluzole vs placebo
no estimate extracted1 study · 38 participantsLow
Acceptability ‐ total dropouts
Riluzole vs placebo
OR 0.81 [0.23, 2.88]1 study · 42 participantsUngraded
Acceptability ‐ dropouts due to adverse effects
Riluzole vs placebo
no estimate extractedNRNo studies

Sarcosine compared to citalopram for depression in adults

Population: depression in adults
CD011612.PUB2 · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 2 weeks
Sarcosine vs citalopram
OR 8.14 [0.88, 75.48]1 study · 40 participantsLow
Response rate ‐ at 4 weeks
Sarcosine vs citalopram
OR 6.93 [1.53, 31.38]1 study · 40 participantsLow
Remission rate ‐ at 2 weeks
Sarcosine vs citalopram
OR 14.55 [0.75, 283.37]1 study · 40 participantsLow
Hamilton Depression Rating Scale score ‐ at 2 weeks
Sarcosine vs citalopram
no estimate extracted1 study · 40 participantsLow
Acceptability ‐ total dropouts
Sarcosine vs citalopram
OR 0.52 [0.14, 1.92]1 study · 40 participantsLow
Acceptability ‐ dropouts due to adverse events
Sarcosine vs citalopram
no estimate extracted1 study · 40 participantsLow

Ketamine compared to ECT for depression in adults

Population: depression in adults
CD011612.PUB2 · 8 questions
OutcomeEffectEvidenceStatus / GRADE
Response rate ‐ at 24 hours
Ketamine vs ECT
OR 28 [2.07, 379.25]1 study · 18 participantsVery low
Response rate ‐ at 72 hours
Ketamine vs ECT
OR 12.25 [1.33, 113.06]1 study · 18 participantsVery low
Response rate ‐ at 1 week
Ketamine vs ECT
OR 3.35 [0.12, 93.83]1 study · 18 participantsVery low
Response rate ‐ at 2 weeks
Ketamine vs ECT
OR 3.35 [0.12, 93.83]1 study · 18 participantsVery low
Remission rate ‐ at 1 week
Ketamine vs ECT
OR 10.23 [0.45, 233.23]1 study · 18 participantsVery low
Hamilton Depression Rating Scale score ‐ at 1 week
Ketamine vs ECT
no estimate extracted1 study · 18 participantsLow
Acceptability ‐ total dropouts
Ketamine vs ECT
no estimate extractedNRNo studies
Acceptability ‐ dropouts due to adverse effects
Ketamine vs ECT
no estimate extractedNRNo studies