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Ketamine noninferior to gold standard ECT for treating major depression: NEJM
![Ketamine noninferior to gold standard ECT for treating major depression: NEJM Ketamine noninferior to gold standard ECT for treating major depression: NEJM](https://medicaldialogues.in/h-upload/2023/05/16/750x450_209788-depression-3.webp)
USA: For treating non-psychotic, treatment-resistant depression, a recent study found ketamine to be effective and noninferior to electroconvulsive therapy (ECT). The study findings were published in the New England Journal of Medicine.
“ECT has been the gold standard for treating severe depression for over 80 years,” said Amit Anand, MD, director of Psychiatry Translational Clinical Trials at Mass General Brigham and Professor of Psychiatry at Harvard Medical School. “But it is also a controversial treatment because it can cause memory loss, requires anaesthesia and is associated with social stigma. This is the largest study comparing ketamine and ECT treatments for depression that have ever been done, and the only one that also measured impacts to memory.”
Major Depressive Disorder (MDD) is a leading cause of disability worldwide and is estimated to affect 21 million adults in the United States. ECT involves inducing a seizure via electrical stimulation of the brain. Ketamine is a low-cost dissociative drug approved by the Food and Drug Administration as a sedative/analgesic and general anaesthetic. Previous studies have suggested that low drug doses may have rapid antidepressant effects for people with MDD.
The trial was conducted from March 2017 to September 2022 at five sites with 403 patients randomized one-to-one to either receive ECT three times per week or ketamine twice per week for three weeks. Patients were followed for six months after treatment and responded to a depressive symptom self-assessment questionnaire, including memory tests and questions about the quality of life.
The researchers found that 55 percent of those receiving ketamine and 41 percent of those receiving ECT reported at least a 50 percent improvement in their self-reported depressive symptoms and an improvement in their self-reported quality of life that lasted throughout the six-month monitoring period. ECT treatment was associated with memory loss and musculoskeletal adverse effects. Ketamine treatment was not associated with side effects other than an experience of transient dissociation at the time of treatment.
"For the ever-growing number of patients who do not respond to conventional psychiatric treatments and need a higher level of care, ECT continues to be the most effective treatment in treatment-resistant depression," said Murat Altinay, MD, Psychiatrist and lead of the trial site at Cleveland Clinic. " This study shows us that intravenous ketamine was non-inferior to ECT for treatment of non-psychotic treatment resistant depression and could be considered as a suitable alternative treatment for the condition."
The current study is the largest-to-date real-world comparative effectiveness trial of ECT vs. ketamine. The trial took a patient-centered approach, with three types of independent depression ratings (patient, rater, and clinician) captured and no active solicitation of participants.
The authors note that their findings are based on self-reported outcomes and that the trial’s open-label design could have influenced response rates. But the trial’s patient-centeredness and the real-world design may also be a strength, allowing the findings to be more easily translated into clinical practice.
Anand’s team is now working on a follow-up study comparing ECT and ketamine treatments for patients with acute suicidal depression to see if the same promising impact is seen in that population.
“People with treatment-resistant depression suffer a great deal, so it is exciting that studies like this are adding new options for them,” said Anand. “With this real-world trial, the results are immediately transferable to the clinical setting.”
Reference:
Amit Anand, Sanjay J. Mathew, Gerard Sanacora, James W. Murrough, Fernando S. Goes, Murat Altinay, Amy S. Aloysi, Ali A. Asghar-Ali, Brian S. Barnett, Lee C. Chang, Katherine A. Collins, Sara Costi, DOI: 10.1056/NEJMoa2302399.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: editorial@medicaldialogues.in. Contact no. 011-43720751