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Ketamine: all studies

Page 322 of 449: studies 3,211 to 3,220 of 4,483, newest first. Back to the ketamine overview

Research

Intranasal Racemic Ketamine Maintenance Therapy for Patients with Treatment-Resistant Depression: A Naturalistic Feasibility Study

Research Square Katelyn Halpape, Raelle Pashovitz, Annabelle Wanson et al. preprint

Abstract Background Ketamine is a promising therapy for treatment-resistant depression due to its rapid onset, although benefits are often transitory, with patients needing maintenance therapy to prevent relapse. Most data supporting ketamine for treatment-resistant depression refers to the intravenous route of administration, leaving alternative routes lacking in data, especially as...

Systematic Reviews and Meta-Analyses of Ketamine Therapy for Depression (2020–2024) A Comparative Evidence Summary

Michael Alvear preprint

This report summarizes more than 25 systematic reviews and meta-analyses published between 2020 and 2025 on ketamine-based therapies for depression. It provides a comparative analysis of intravenous (IV) ketamine, esketamine nasal spray (Spravato), and oral ketamine, highlighting differences in response rates, remission rates, speed of symptom relief, and durability of results.It also examines...

Ketamine Cystitis in a Female Patient on Short-term Ketamine Therapy for Treatment Resistant Depression: Case Report (Preprint)

Minna Chang

Ketamine has been shown to be a novel and exciting antidepressant medication in patients with treatment-resistant depression. A complication commonly seen in frequent and heavy recreational use of ketamine is ulcerative cystitis, which presents with lower urinary tract symptoms (LUTS) and upper renal tract damage, seen in over 25% of regular users (3, 4). Although KIC is a recognised...

Ketamine Cystitis in a Female Patient Ketamine Therapy for Treatment Resistant Depression – Case Report

Research Square Minna Chang preprint

Abstract Ketamine has been shown to be a novel and exciting antidepressant medication in patients with treatment-resistant depression. A complication commonly seen in frequent and heavy recreational use of ketamine is ulcerative cystitis, which presents with lower urinary tract symptoms (LUTS) and upper renal tract damage, seen in over 25% of regular users (3, 4). Although KIC is a recognised...

French psychiatric caregivers' perceptions of psychedelics: A national survey.

L'Encephale October 16, 2026 Anne Buot, Jean-Del Burdairon, Luc Mallet et al.

The use of psychedelic substances such as LSD, psilocybin, and dimethyltryptamine is currently being re-evaluated for their therapeutic potential in psychiatry. While international clinical research had started in the 2010s, France only initiated its first psychedelic trials in 2024. This study aimed to explore the knowledge, perceptions, and attitudes of French mental health professionals...

Novel pharmacotherapies for opioid use disorder and opioid withdrawal

Frontiers in Psychiatry September 3, 2026 Mary R. Shen, Kwadwo Owusu-Boaitey, Zackari D. Murphy et al.

IntroductionOpioid use disorder (OUD) remains a major public health crisis despite evidence-based medications, including methadone, buprenorphine, and naltrexone. Persistent challenges with treatment retention, access, stigma, and incomplete response highlight the need for adjunctive pharmacotherapies targeting neurobiological systems beyond the mu-opioid receptor.MethodsWe conducted a...

Oncology Providers' Perspectives on Psychedelic-Assisted Therapy.

The American journal of hospice & palliative care August 28, 2026 Krishna Hanubal, Akul Munjal, Jino Park et al.

PurposeDespite most psychedelic substances remaining Schedule I, clinical research exploring psychedelic-assisted therapy (PAT) in oncology is expanding. We sought to assess oncology providers' attitudes toward and understanding of PAT.MethodsWe conducted a cross-sectional survey of healthcare professionals involved in oncology across five academic institutions in California, South Carolina,...

Therapeutic potential of classic and non-classic psychedelics in neurodevelopmental disorders: Opportunities and challenges

Pharmacological Research August 26, 2026 Mattia Giovenzana, Noemi Nicosia, Stefano Spinosa et al.

Neurodevelopmental disorders (NDDs) comprise a heterogeneous group of conditions arising from altered brain development and leading to impairments in social, cognitive, emotional, and motor domains. Clinical manifestations are highly variable in severity and symptom profile, reflecting the complex and multifactorial etiology of NDDs. Available treatments are limited to early behavioral...

Cellular and Microcircuit Mechanisms of Anesthetic Disruption of Conscious-State Organization.

Cells August 18, 2026 Bernard Kordas

The reversible effects of general anesthesia can be used to examine how brain activity changes during transitions into and out of altered conscious states. Such changes are commonly tracked using behavioral responses, electroencephalographic recordings, and measures of functional connectivity. These measures, however, reflect processes occurring at lower levels of organization, including the...

DOI: 10.3390/cells15161486 (opens in new tab) Full text (opens in new tab) Ketamine Apical dendrites Consciousness Cortical hierarchy +6

Dreaming during anaesthesia: a scoping review.

British Journal of Anaesthesia August 1, 2026 Pilleriin Sikka, Sherry Hu, Boris D. Heifets

Dreaming during anaesthesia has been documented for over a century, yet it remains poorly understood. This scoping review synthesises evidence on the frequency, phenomenology, predictors, outcomes, and neural correlates of anaesthesia dreaming. We systematically searched multiple databases for studies examining anaesthesia dreaming, including clinical trials, observational studies, and...