Shixia Xu, Jiaojiao Yang, Jing Li et al.
preprint
Abstract Background Postpartum depression (PPD) is a common mental disease in postpartum women, which has received more and more attention in society. Ketamine has been confirmed for its rapid antidepressant effect in women with PPD. We speculate that esketamine, an enantiomer of ketamine, pretreatment during cesarean can also reduce the incidence of PPD. Methods All the parturients enrolled in...
Brandon G. Truax
preprint
ABSTRACT Aims To investigate real-world treatment attrition, concomitant use of pharmaceuticals with known drug-interactions, total cost of care, claims-based outcomes, and health disparities for individuals initiated on esketamine therapy in the United States. Methods Individuals aged 18-64 with >=1 adjudicated claim for esketamine intranasal spray from 2019 to 2022 in the Optum Labs Data...
SSRN Electronic Journal
Michael Alvear
preprint
This white paper reports a stratified evidence synthesis of 31 peer-reviewed studies (2016–2026) examining ketamine and esketamine as rapid-acting treatments for suicidal ideation. Studies were classified by administration route — intravenous racemic ketamine (14 primary studies, N=1,258), intranasal esketamine/Spravato (6 primary studies, N=844), and injection routes combining intramuscular...
Research Square
Alice Le Berre
preprint
Abstract Background: Treatment-resistant depression (TRD) involves impaired hippocampal plasticity. Preclinical work showed synaptic potentiation and dendritic spine growth in the dentate gyrus (DG) after esketamine (ESK), but human evidence is lacking. We aimed to detect early DG changes after ESK using advanced diffusion MRI, and to test whether baseline MRI metrics predict clinical response....
Journal of Affective Disorders
October 21, 2026
Yamina Ehrt-Schäfer, Georgios Schoretsanitis, Erich Seifritz et al.
Intranasal (es)ketamine has shown efficacy in therapy of treatment-resistant depression (TRD). However, its effects on suicidality have not been fully elucidated. We conducted a retrospective longitudinal cohort study of 80 patients affected by TRD, treated with intranasal (es)ketamine. Suicidality was assessed using item 10 of the clinician-rated Montgomery-Åsberg Depression Rating Scale...
BMC Medical Ethics
October 18, 2026
Adrian Kind, Josephine Görke, Hannah Smirr et al.
Abstract Background Treatments with acute consciousness-altering effects, such as (es)ketamine, place patients in a state of heightened vulnerability with reduced capacity for self-advocacy and self-regulation. Since feeling safe is a precondition for consenting to begin, and remaining in, treatment, this raises distinct ethical demands on care. Which features of the setting enable patients to...
Journal of Psychopharmacology
September 7, 2026
Sabrina Wong, Gia Han Le, Simryn Selby et al.
Extant literature indicates mitochondrial dysfunction may contribute to the pathophysiology of depressive disorders. Preclinical data indicate that anesthetic doses of ketamine are associated with deficits in mitochondrial viability and function. Ketamine and esketamine have demonstrated rapid antidepressant effects in persons with difficult-to-treat depressive disorders. Herein, we aim to...
Der Nervenarzt
August 17, 2026
Stefan Vestring, Katharina Domschke, Claus Normann
Ketamine has been established as an anesthetic agent for decades. Around the turn of the millennium initial clinical studies demonstrated that subanesthetic doses of ketamine can exert antidepressant effects in treatment-resistant depression. These findings established the concept of an effective glutamatergic antidepressant treatment and initiated a paradigm shift. For many years, intravenous...
Frontiers in Psychiatry
July 20, 2026
Bruce Tamilson, Michael Chitolie, Jan Coebergh et al.
Background and aimFunctional neurological disorder (FND) is a common and disabling condition for which effective treatments remain limited. Clinical outcomes are often variable, particularly in chronic and comorbid presentations. Ketamine and esketamine are increasingly used across a range of neuropsychiatric conditions. This review aimed to synthesise the existing evidence regarding their use...
Psychiatry Research
July 1, 2026
Erin Artna, Guneet Sandhu, Noah Chisamore et al.
1 citation
Borderline personality disorder (BPD) is a serious mental illness with high rates of morbidity and stigma; however, successful remission is frequently limited by a paucity of accessible treatment options. In an era of growing interest in psychedelics as novel psychiatric treatment modalities, patients with BPD are often excluded from research due to perceived safety risks, particularly...