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Spravato shows mettle against depression
09-09-2019
by Jeffrey Bouley  |  Email the author
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TITUSVILLE, N.J.—Sept. 9 brought news from the Janssen Pharmaceutical Companies of Johnson & Johnson—via a presentation at the 32nd European College of Neuropsychopharmacology (ECNP) in Copenhagen, Denmark—regarding positive results from two pivotal Phase 3 clinical studies (ASPIRE I & II) related to the treatment of depression. Specifically, the results are around the evaluation of the efficacy and safety of Spravato (esketamine) CIII nasal spray in addition to comprehensive standard of care (SOC) in adult patients with major depressive disorder who have active suicidal ideation with intent.
 
Spravato is a non-selective, non-competitive antagonist of the N-methyl-D-aspartate (NMDA) receptor—an ionotropic glutamate receptor—with a novel mechanism of action compared to currently available therapies for major depressive disorder.
 
The primary efficacy endpoint, a reduction in depressive symptoms at 24 hours after the first dose, as measured by the Montgomery-Åsberg Depression Rating Scale (MADRS), were indeed reached in both double-blind, randomized, placebo-controlled, multicenter studies .
 
What is also notable, though, is the type of population that was part of the study, noted Janssen.
 
“These are the first global clinical studies in this severely ill patient population, who are typically excluded from antidepressant treatment studies,” said Dr. Husseini K. Manji, global head of the Neuroscience Therapeutic Area of Janssen Research & Development LLC. “At Janssen, we are committed to continued clinical research excellence that leads to discovery and development of new and more effective treatment options for people living with mental illnesses, including severe mood disorders. The esketamine nasal spray development program is a demonstration of that commitment and our recognition of the great unmet need among individuals with major depressive disorder who experience suffering from a serious, biologically based disease which has a significant negative impact on various aspects of life.”
 
Spravato 84 mg plus SOC showed clinically meaningful and statistically significant superiority over placebo plus SOC in rapidly reducing symptoms of major depressive disorder. In these studies, comprehensive SOC included initial hospitalization and newly initiated and/or optimized antidepressant therapy.
 
“These data are particularly important because patients with major depressive disorder presenting with active suicidal ideation with intent constitute a psychiatric emergency that requires immediate intervention,” noted Dr. Carla Canuso, senior director of clinical research at Janssen Research & Development and also clinical leader of the ASPIRE I & II studies. “Although currently available antidepressants are effective for many patients, their onset of effect can take four to six weeks, offering limited benefit to those in urgent need.”
 
In these studies, both Spravato plus comprehensive SOC and placebo plus comprehensive SOC resulted in improvement in severity of suicidality as measured by the revised Clinical Global Impression of Severity of Suicidality (CGI-SS-R) at 24 hours after the first dose. The treatment difference between the two groups on this secondary endpoint was not statistically significant. Janssen speculates that this may be due to the substantial beneficial effects of comprehensive SOC utilized in the clinical trial, including the impact of inpatient psychiatric hospitalization in diffusing the acute suicidal crisis in patients in both treatment groups.
 
The 456 patients who participated in the trials had moderate-to-severe major depressive disorder. More than 85 percent were rated by clinicians to be moderately to extremely suicidal. In order to safely and ethically conduct the study in this vulnerable patient population, all patients were treated with the comprehensive SOC, which included initial hospitalization and a newly initiated and/or optimized antidepressant regimen.
 
In the ASPIRE I & II trials, Spravato plus SOC was well tolerated with no new safety signals. The safety profile observed was consistent across the two Phase 3 studies in patients with major depressive disorder who have active suicidal ideation with intent, as well as previous studies of Spravato in patients with treatment-resistant depression. In the Spravato plus SOC group, the most common adverse events (≥10 percent), with a frequency of more than twice that of the placebo plus SOC group, were dizziness, dissociation, nausea, somnolence, blurred vision, vomiting, paresthesia, increased blood pressure and sedation.
 
Spravato in conjunction with a newly initiated antidepressant is approved in the United States for the treatment of treatment-resistant depression (TRD) and has been submitted for Health Authorities review for TRD in other markets around the world, including Europe. The U.S. Food and Drug Administration granted Breakthrough Therapy designation to esketamine nasal spray for treatment-resistant depression in November 2013, and for reduction of major depressive disorder symptoms in patients with active suicidal ideation in August 2016.
 
Code: E09111902

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