Effect of ketamine infusion in treatment resistant depression and in depressive patients with active suicidal ideations: a study from North India
Ubaid Rasool, Neelofer Jan, Marya Zahoor, Fazle Roub, Yasir Hassan Rather, Arshad Hussain, Rukhsana Najeeb
International Journal of Research in Medical Sciences January 17, 2023 DOI: 10.18203/2320-6012.ijrms20230029 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational/descriptive study Peer reviewed |
|---|---|
| Population | Patients with treatment-resistant depression or depressive disorder with active suicidal ideation attending a ketamine clinic |
| Intervention | Ketamine |
| Dose | 0.5 mg/kg |
| Duration | 18 months (January 2020 to July 2021) |
| Topics | Depression Esketamine Ketamine |
| Citations | 3 |
| Key findings | Intravenous ketamine produced a response in 70.27% of patients with treatment-resistant depression and 63.16% of patients with suicidality, with a rapid onset of action observed two hours after infusion. The authors argue that ketamine may improve psychosocial outcomes and prevent suicidal ideation in these patients. |
Abstract
Background: Treatment resistant depression can be a life-threatening condition as it leads to an increase of suicide attempts by two to three folds. It has been estimated that nearly 1 million people die due to suicide every year, and more than two-third of these cases occur when the person is undergoing a major depressive episode. Ketamine is an NMDA receptor antagonist, an anesthetic agent that is short acting and has recently been used as an antidepressant and anti-suicidal agent. It has been seen that a single intravenous infusion of ketamine at a lower dose. i.e., subanesthetic dose of 0.5 mg/kg over a period of 40 minutes produces antidepressant effect which lasts for about a week and various studies have proved that repeated infusions of ketamine can prolong the duration of the antidepressant response.
Methods: It was an observational/descriptive study done in the ketamine clinic/ECT suite of institute of mental health and neurosciences Kashmir (an associate hospital of government medical college Srinagar) which runs once a week. In this study, patients satisfying the criteria of TRD and depressive patients with active suicidal ideations, visiting the ketamine clinic who had given a valid informed consent for ketamine infusion enrolled and observed for ketamine efficacy by using specific scales. The study done over a period of 18 months from January 2020 till July 2021.
Results: The response rate of ketamine in our study for treatment resistant depression was 70.27%. The response rate of ketamine for suicidality in our study was 63.16%. Our study showed a rapid onset of action for ketamine, two hours after ketamine infusion.
Conclusions: A significant fraction of patients suffering from major depressive disorder do not respond to antidepressants and have a poor psychosocial functioning and an increased risk of suicide attempts making their condition life threatening. These patients therefore require special attention to address their underlying condition as well as suicidality to improve their outcome. In this context we studied the role of intravenous ketamine infusion in these patients in improving the psychosocial outcome as well as preventing the suicidal ideation.
Comparable studies
Other observational and cohort studies on ketamine for depression, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Concomitant BDNF and sleep slow wave changes indicate ketamine-induced plasticity in major depressive disorder Patients with treatment-resistant major depressive disorder | 2012 | Observational cohort | n = 30 |
| Altered peripheral immune profiles in treatment-resistant depression: response to ketamine and prediction of treatment outcome Healthy controls and actively depressed patients with treatment-resistant depression... | 2017 | Observational cohort | n = 59 |
| Clinical Predictors of Ketamine Response in Treatment-Resistant Major Depression Treatment-resistant inpatients with DSM-IV-TR-diagnosed major depressive disorder or... | 2014 | Post hoc analysis of pooled data from four studies | n = 108 |
| An investigation of amino-acid neurotransmitters as potential predictors of clinical improvement to ketamine in depression Drug-free patients with major depressive disorder | 2011 | Observational cohort | n = 14 |
| Efficacy of ketamine therapy in the treatment of depression Drug-free/naïve men with severe depression, no history of psychotic disorder, head... | 2019 | Observational cohort | n = 25 |