Literature DB >> 33264819

Effect of Adjunctive Pimavanserin on Sleep/Wakefulness in Patients With Major Depressive Disorder: Secondary Analysis From CLARITY.

Manish K Jha1,2, Maurizio Fava3, Marlene P Freeman3, Michael E Thase4, George I Papakostas3, Richard C Shelton5, Madhukar H Trivedi6, Bryan Dirks7, Keith Liu7, Srdjan Stankovic7.   

Abstract

OBJECTIVE: This was an analysis of the effect of pimavanserin, a 5-hydroxytryptamine-2A antagonist and inverse receptor agonist, on dysregulated sleep in patients with major depressive disorder (MDD) by DSM-5 criteria and an inadequate antidepressant response.
METHODS: For this analysis of CLARITY, a phase 2 study of adjunctive pimavanserin (N = 207) conducted between December 2016 and October 2018, sleep/wakefulness disturbances were measured with the 17-item Hamilton Depression Rating Scale (HDRS₁₇) insomnia items (sum of items 4, 5, and 6) and the Karolinska Sleepiness Scale (KSS). Outcomes included change from baseline in HDRS₁₇ insomnia factor score and KSS score, correlation between the HDRS₁₇ insomnia factor score and KSS score, and change from baseline in the Sheehan Disability Scale (SDS) total score and Unproductive Days subscore in patients with a baseline KSS score ≥ 6.
RESULTS: At baseline, HDRS₁₇ insomnia factor score ≥ 3 occurred in 76% of patients receiving placebo and 85% of patients receiving pimavanserin. The overall least squares (LS) mean weighted difference (SE) was -0.5 (0.32) with a 95% CI of -1.2 to 0.1 (P = .088) at week 5. Improvement was observed with pimavanserin versus placebo at weeks 2, 3, and 4, with effect sizes (ESs) of 0.370 to 0.524 (P < .05). For KSS score, the LS mean difference (SE) at week 5 was -1.1 (0.30) (95% CI, -1.7 to -0.5; P = .0003; ES = 0.627) for pimavanserin versus placebo. Among those with a KSS score ≥ 6 at baseline (n = 120 placebo and n = 42 pimavanserin), the LS mean difference (SE) in the mean SDS score at week 5 was -1.1 (0.46) (95% CI, -2.0 to -0.2; P = .019; ES = 0.442) for pimavanserin versus placebo.
CONCLUSIONS: Adjunctive pimavanserin significantly improved sleep/wakefulness disturbance during treatment of MDD, an improvement that was associated with greater improvement in function. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT03018340. © Copyright 2020 Physicians Postgraduate Press, Inc.

Entities:  

Year:  2020        PMID: 33264819     DOI: 10.4088/JCP.20m13425

Source DB:  PubMed          Journal:  J Clin Psychiatry        ISSN: 0160-6689            Impact factor:   4.384


  1 in total

1.  The Novel Pimavanserin Derivative ST-2300 with Histamine H3 Receptor Affinity Shows Reduced 5-HT2A Binding, but Maintains Antidepressant- and Anxiolytic-like Properties in Mice.

Authors:  Karthikkumar Venkatachalam; Sicheng Zhong; Mariam Dubiel; Grzegorz Satała; Bassem Sadek; Holger Stark
Journal:  Biomolecules       Date:  2022-05-10
  1 in total

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