Evidence map›Paper›PMID 37222753›Full record

ArticlePsychopharmacology2023

Phenomenology and therapeutic potential of patient experiences during oral esketamine treatment for treatment-resistant depression: an interpretative phenomenological study.

Joost J Breeksema, Alistair Niemeijer, Bouwe Kuin, Jolien Veraart, Eric Vermetten, Jeanine Kamphuis, Wim van den Brink, Robert Schoevers

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Psychopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06772753 (Investigation of Psychedelic Effects in Psychoactive Substances), which is not on this map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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.

NCT06772753 phase1recruitingnot on this mapstarted 2025, after this paper: background citation

Investigation of Psychedelic Effects in Psychoactive Substances

TypeinterventionalSponsorJohns Hopkins UniversityRan2025 to 2027Enrolled50ConditionsPsychedelic Effects in Healthy VolunteersArmsPlacebo, Psilocybin, Ketamine, Dextromethorphan (DXM), Dimethyltryptamine (DMT)
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Joost J BreeksemaDepartment of Psychiatry, Research School of Behavioural and Cognitive Neurosciences (BCN), University Medical Center Groningen, University of Groningen, Postbus 30.001, 9700, RB, Groningen, the Netherlands. j.j.breeksema@umcg.nl.ORCID http://orcid.org/0000-0002-8787-4610
Alistair NiemeijerDepartment of Care Ethics, University of Humanistic Studies, Utrecht, The Netherlands.
Bouwe KuinDepartment of Psychiatry, Research School of Behavioural and Cognitive Neurosciences (BCN), University Medical Center Groningen, University of Groningen, Postbus 30.001, 9700, RB, Groningen, the Netherlands.
Jolien VeraartDepartment of Psychiatry, Research School of Behavioural and Cognitive Neurosciences (BCN), University Medical Center Groningen, University of Groningen, Postbus 30.001, 9700, RB, Groningen, the Netherlands.
Eric VermettenDepartment of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
Jeanine KamphuisDepartment of Psychiatry, Research School of Behavioural and Cognitive Neurosciences (BCN), University Medical Center Groningen, University of Groningen, Postbus 30.001, 9700, RB, Groningen, the Netherlands.
Wim van den BrinkAmsterdam UMC, location Department of Psychiatry, Academic Medical Center, Amsterdam, the Netherlands.
Robert SchoeversDepartment of Psychiatry, Research School of Behavioural and Cognitive Neurosciences (BCN), University Medical Center Groningen, University of Groningen, Postbus 30.001, 9700, RB, Groningen, the Netherlands.
University Medical Center Groningen · NLLeiden University Medical Center · NLRELX Group (Netherlands) · NLUniversity of Humanistic Studies · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundKetamine and its enantiomers are widely researched and increasingly used to treat mental disorders, especially treatment-resistant depression. The phenomenology of ketamine-induced experiences and their relation to its psychotherapeutic potential have not yet been systematically investigated.

aimsTo describe the phenomenology of patient experiences during oral esketamine treatment for treatment-resistant depression (TRD) and to explore the potential therapeutic relevance of these experiences.

methodsIn-depth interviews were conducted with 17 patients after a 6-week, twice-weekly 'off label' generic oral esketamine (0.5-3.0mg/kg) treatment program. Interviews explored participants' perspectives, expectations, and experiences with oral esketamine treatment. Audio interviews were transcribed and analyzed using an Interpretative Phenomenological Analysis (IPA) framework.

resultsThe effects of ketamine were highly variable, and psychological distress was common in most patients. Key themes included (a) perceptual effects (auditory, visual, proprioceptive), (b) detachment (from body, self, emotions, and the world), (c) stillness and openness, (d) mystical-type effects (transcendence, relativeness, spirituality), and (e) fear and anxiety. Key themes related to post-session reports included (a) feeling hungover and fatigued, and (b) lifting the blanket: neutralizing mood effects.

conclusionPatients reported several esketamine effects with psychotherapeutic potential, such as increased openness, detachment, an interruption of negativity, and mystical-type experiences. These experiences deserve to be explored further to enhance treatment outcomes in patients with TRD. Given the frequency and severity of the perceived distress, we identify a need for additional support in all stages of esketamine treatment.

Indexed as

Depressive Disorder, Treatment-ResistantKetamineAntidepressive AgentsDepressionHumansPatient Outcome AssessmentAntidepressive AgentsEsketamineKetamineEsketaminePatient experiencesPhenomenologyPsychotherapyQualitative researchTreatment-resistant depression

Identifiers

PMID37222753
PMCPMC10271905
OpenAlexW4377941059

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Registered trials

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.