Evidence map›Paper›PMID 33174760›Full record

SynthesisCanadian journal of psychiatry. Revue canadienne de psychiatrie2021

The Canadian Network for Mood and Anxiety Treatments (CANMAT) Task Force Recommendations for the Use of Racemic Ketamine in Adults with Major Depressive Disorder: Recommandations Du Groupe De Travail Du Réseau Canadien Pour Les Traitements De L'humeur Et De L'anxiété (Canmat) Concernant L'utilisation De La Kétamine Racémique Chez Les Adultes Souffrant De Trouble Dépressif Majeur.

Jennifer Swainson, Alexander McGirr, Pierre Blier, Elisa Brietzke, Stéphane Richard-Devantoy, Nisha Ravindran, Jean Blier, Serge Beaulieu, Benicio N Frey, Sidney H Kennedy and 10 more

Erratum issuedOpen access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Canadian journal of psychiatry. Revue canadienne de psychiatrie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 48 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 4 pooled it
8.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 4 syntheses or guidelines pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. Treatment-resistant Depression in the Post-ketamine Era: Unmet Needs beyond Rapid Response.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 10 institutions in 2 countries.

Jennifer SwainsonDepartment of Psychiatry, 12357University of Alberta, Edmonton, Alberta, Canada.
Alexander McGirrDepartment of Psychiatry, 70401University of Calgary, Alberta, Canada.ORCID 0000-0002-8425-3958
Pierre BlierDepartment of Psychiatry, 12365University of Ottawa, Ontario, Canada.
Elisa BrietzkeDepartment of Psychiatry, 104820Queen's University, Kingston, Ontario, Canada.
Stéphane Richard-DevantoyDepartment of Psychiatry, 12367McGill University, Montreal, Quebec, Canada.
Nisha RavindranDepartment of Psychiatry, 12366University of Toronto, Ontario, Canada.
Jean BlierDepartment of Anesthesiology and Pain Medicine, 12365University of Ottawa, Ontario, Canada.
Serge BeaulieuDepartment of Psychiatry, 12367McGill University, Montreal, Quebec, Canada.
Benicio N FreyDepartment of Psychiatry and Behavioural Neurosciences, 62703McMaster University, Hamilton, Ontario, Canada.
Sidney H KennedyDepartment of Psychiatry, 12366University of Toronto, Ontario, Canada.
Roger S McIntyreDepartment of Psychiatry, 12366University of Toronto, Ontario, Canada.
Roumen V MilevDepartment of Psychiatry, 104820Queen's University, Kingston, Ontario, Canada.
Sagar V ParikhDepartment of Psychiatry, 12266University of Michigan, Ann Arbor, Michigan, USA.
Ayal SchafferDepartment of Psychiatry, 12366University of Toronto, Ontario, Canada.
Valerie H TaylorDepartment of Psychiatry, 70401University of Calgary, Alberta, Canada.
Valérie TourjmanDepartment of Psychiatry, 12368Université de Montréal, Québec, Canada.
Michael van AmeringenDepartment of Psychiatry and Behavioural Neurosciences, 62703McMaster University, Hamilton, Ontario, Canada.
Lakshmi N YathamDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.
Arun V RavindranDepartment of Psychiatry, 12366University of Toronto, Ontario, Canada.ORCID 0000-0002-1655-2753
Raymond W LamDepartment of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0001-7142-4669
University of Toronto · CAMcGill University · CAMcMaster University · CAQueen's University · CAUniversity of British Columbia · CAUniversity of Calgary · CAUniversity of Ottawa · CAUniversité de Montréal · CAUniversity of Alberta · CAUniversity of Michigan · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePatients with major depressive disorder often have limited response to first-line and second-line medications; hence, novel pharmacological treatments are needed for treatment-resistant depression (TRD). Ketamine, an

methodsA systematic review was conducted with computerized search of electronic databases up to January 31, 2020 using combinations of search terms, inspection of bibliographies, and review of other ketamine guidelines and consensus statements. The level of evidence and lines of treatment were assigned according to CANMAT criteria. Recommendations were given in question-answer format.

resultsIntravenous (IV) racemic ketamine given as a single infusion has Level 1 evidence for efficacy in adults with TRD. The evidence for multiple infusions, given as an acute series or as ongoing maintenance treatment, is limited to Level 3. Adverse events associated with ketamine infusions include behavioral (e.g., dissociative symptoms) and physiological (e.g., hypertension) events. There is only Level 3 or 4 evidence for non-IV formulations of racemic ketamine. Consensus recommendations are given for clinical administration of IV ketamine including patient selection, facility and personnel issues, monitoring, and maintaining response.

conclusionsSingle-dose IV racemic ketamine is a third-line recommendation for adults with TRD. The need for repeated and maintenance ketamine infusions should be carefully assessed on a case-by-case basis with consideration of potential risks and benefits. Because of limited evidence for efficacy and risk for misuse and diversion, the use of oral and other formulations of racemic ketamine should be limited to specialists with ketamine-prescribing expertise and affiliations with tertiary or specialized centers.

Indexed as

KetamineMajor Depressive DisorderAdultAntidepressive AgentsAnxietyCanadaHumansAntidepressive AgentsKetamineantidepressantsdepressionesketamineglutamateketaminemajor depressive disordertreatment-resistant depression

Identifiers

PMID33174760
PMCPMC7918868
OpenAlexW3099585958

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.