Heliyon
August 1, 2019
Steve Best, Dan G. Pavel, Natalie Haustrup
34 citations
Background Both transcranial magnetic stimulation (TMS) and infused ketamine are recognized treatments for patients suffering from major depressive disorder (MDD). A novel therapy named combination TMS with ketamine (CTK) is introduced. This retrospective review examined the safety and clinical benefits of CTK in patients suffering from treatment-resistant depression (TRD) during the routine...
Drug Design, Development and Therapy
August 1, 2019
Alexandrine Corriger, G. Pickering
197 citations
Abstract Depression is the third leading cause of disability in the world. Depressive symptoms may be reduced within several weeks after the start of conventional antidepressants, but treatment resistance concerns one-third of patients who fail to achieve recovery. Over the last 20 years, ketamine, an antagonist of the N-methyl-D-aspartate receptor, has been described to have antidepressant...
The British Journal of Psychiatry
August 1, 2019
Álvaro López-díaz, Manuel Murillo-Izquierdo, Elisa Moreno-Mellado
21 citations
Ketamine therapy for treatment-resistant depression in European national health systems may only be considered after attempting all evidence-based antidepressant strategies outlined in clinical guidelines. This paper seeks to explain the ethical, regulatory and procedural framework for the off-label use of ketamine for treatment-resistant depression within a public healthcare system.Declaration...
BJPsych Open
July 29, 2019
Sagar Jilka, Claire A. Murray, Ania M. Wieczorek et al.
20 citations
BACKGROUND: Only one-third of patients with major depressive disorder achieve remission. One new and promising treatment, ketamine, may prove challenging to implement because of its abuse potential. Although clinicians' views have been sought, we need patients' views before large scale roll-out is considered. AIMS: To explore patients' and carers' views to inform policy and practical decisions...
Pharmacology, Biochemistry, and Behavior
July 23, 2019
Qing Li, Huiran Wu, Shu-Juan Fan et al.
Ketamine has become increasingly popular in adolescent drug abusers worldwide. Meanwhile, alcohol is usually used by ketamine users. However, little work has been conducted to examine the chronic combined effects of ketamine and ethanol on adolescent brain. Here we probed into the effects of chronic administration of ketamine at recreational doses alone or combined with ethanol on behaviors and...
The International Journal of Neuropsychopharmacology
July 16, 2019
Yukio Ago, Wataru Tanabe, Momoko Higuchi et al.
91 citations
BACKGROUND: Although recent studies provide insight into the molecular mechanisms of the effects of ketamine, the antidepressant mechanism of ketamine enantiomers and their metabolites is not fully understood. In view of the involvement of mechanisms other than the N-methyl-D-aspartate receptor in ketamine's action, we investigated the effects of (R)-ketamine, (S)-ketamine, (R)-norketamine...
The Brown University Psychopharmacology Update
July 1, 2019
A study examining the effects of single, repeated, and maintenance doses of ketamine on patients with treatment‐resistant depression has found cumulative and sustained antidepressant effects from six infusions administered three times a week over 2 weeks. The study also found that among responders to the repeated infusions, antidepressant response was generally maintained with weekly infusions...
British Journal of Pharmacology
July 1, 2019
Panos Zanos, Jaclyn N. Highland, Xin Liu et al.
(R)-Ketamine (arketamine) may have utility as a rapidly acting antidepressant. While (R)-ketamine has lower potency than (R,S)-ketamine to inhibit NMDA receptors in vitro, the extent to which (R)-ketamine shares the NMDA receptor-mediated adverse effects of (R,S)-ketamine in vivo has not been fully characterised. Furthermore, (R)-ketamine is metabolised to (2R,6R)-hydroxynorketamine (HNK),...
Pharmacology & Therapeutics
July 1, 2019
T. H. Pham, Alain M. Gardier
190 citations
Ketamine, a non-competitive antagonist of N-methyl-D-aspartate (NMDA) receptor, displays a fast antidepressant activity in treatment-resistant depression and in rodent models of anxiety/depression. A large body of evidence concerning the cellular and molecular mechanisms underlying its fast antidepressant-like activity comes from animal studies. Although structural remodeling of...
American Journal of Psychiatry
June 24, 2019
Elias Dakwar, E. Nunes, C. Hart et al.
179 citations
OBJECTIVE Research has suggested that subanesthetic doses of ketamine may work to improve cocaine-related vulnerabilities and facilitate efforts at behavioral modification. The purpose of this trial was to test whether a single ketamine infusion improved treatment outcomes in cocaine-dependent adults engaged in mindfulness-based relapse prevention. METHODS Fifty-five cocaine-dependent...