Objective: Improvement of cognitive function in patients with major depressive disorder (MDD) is an important treatment outcome. REL-1017 (esmethadone HCl) is a novel N-methyl-d-aspartate receptor (NMDAR) channel blocker and a potentially rapidly acting antidepressant. The objective of this study was to define the effects of REL-1017 on subjective cognitive measures in patients with MDD. Methods: Post hoc analysis was conducted of subjective cognitive measures from the Montgomery-Asberg Depression Rating Scale (MADRS) and the Symptoms of Depression Questionnaire (SDQ) from a randomized, double-blind, placebo-controlled, Phase 2a study. The study, designed to assess the safety, tolerability, and efficacy of 2 dosages (25 mg and 50 mg) of REL-1017 as an adjunctive treatment in patients with MDD unresponsive to standard antidepressants, included 62 patients. We analyzed subjective cognitive measures derived from the MADRS and SDQ scales at baseline and up to day 14, 7 days after the last dose of study drug. We developed 2 composite indexes that included subjective cognitive measures selected from the MADRS and SDQ. Results: The subanalysis of single measures and the 2 composite indexes derived from the MADRS and SDQ measures showed clinically meaningful and statistically significant improvements in cognitive function (P <.05). Conclusions: In a Phase 2a clinical trial, REL-1017 improved subjective measures of cognitive impairment, in addition to improving total MADRS and SDQ scores. These results need to be confirmed in larger and longer studies in MDD that include objective measures of cognitive function. Phase 3 studies of REL-1017 for MDD are currently underway.
Subanalysis of subjective cognitive measures from a phase 2, double-blind, randomized trial of rel-1017 in patients with major depressive disorder / Guidetti, C.; Serra, G.; Pani, L.; Pappagallo, M.; Maglio, G.; De Martin, S.; Mattarei, A.; Folli, F.; Manfredi, P. L.; Fava, M.. - In: PRIMARY CARE COMPANION FOR CNS DISORDERS. - ISSN 2155-7772. - 25:1(2023), pp. 1-8. [10.4088/PCC.22m03267]
Subanalysis of subjective cognitive measures from a phase 2, double-blind, randomized trial of rel-1017 in patients with major depressive disorder
Pani L.;
2023
Abstract
Objective: Improvement of cognitive function in patients with major depressive disorder (MDD) is an important treatment outcome. REL-1017 (esmethadone HCl) is a novel N-methyl-d-aspartate receptor (NMDAR) channel blocker and a potentially rapidly acting antidepressant. The objective of this study was to define the effects of REL-1017 on subjective cognitive measures in patients with MDD. Methods: Post hoc analysis was conducted of subjective cognitive measures from the Montgomery-Asberg Depression Rating Scale (MADRS) and the Symptoms of Depression Questionnaire (SDQ) from a randomized, double-blind, placebo-controlled, Phase 2a study. The study, designed to assess the safety, tolerability, and efficacy of 2 dosages (25 mg and 50 mg) of REL-1017 as an adjunctive treatment in patients with MDD unresponsive to standard antidepressants, included 62 patients. We analyzed subjective cognitive measures derived from the MADRS and SDQ scales at baseline and up to day 14, 7 days after the last dose of study drug. We developed 2 composite indexes that included subjective cognitive measures selected from the MADRS and SDQ. Results: The subanalysis of single measures and the 2 composite indexes derived from the MADRS and SDQ measures showed clinically meaningful and statistically significant improvements in cognitive function (P <.05). Conclusions: In a Phase 2a clinical trial, REL-1017 improved subjective measures of cognitive impairment, in addition to improving total MADRS and SDQ scores. These results need to be confirmed in larger and longer studies in MDD that include objective measures of cognitive function. Phase 3 studies of REL-1017 for MDD are currently underway.File | Dimensione | Formato | |
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