Endoxifen: A new, protein kinase C inhibitor to treat acute and mixed mania associated with bipolar I disorder
- PMID: 33368969
- DOI: 10.1111/bdi.13041
Endoxifen: A new, protein kinase C inhibitor to treat acute and mixed mania associated with bipolar I disorder
Abstract
Objectives: Endoxifen is a protein kinase C inhibitor. The objective of the present phase III study was to demonstrate the safety and efficacy of endoxifen in treating bipolar I disorder (BPD I) patients.
Methods: A multicenter, double-blind, active-controlled study was conducted using a daily dose of 8 mg endoxifen compared to 1000 mg divalproex, the current standard treatment, in patients with BPD I acute manic episodes with/without mixed features. The primary endpoint of our study was the mean change in total Young Mania Rating Scale (YMRS) score at day 21.
Results: Endoxifen (n = 116) significantly (p < 0.0001) reduced total YMRS score (from 33.1 to 17.8. A significant (p < 0.001) improvement in Montgomery-Åsberg Depression Rating Scale (MADRS) score was observed for endoxifen (4.8 to 2.5). Early time to remission of the disease was observed with endoxifen compared to divalproex. None of the patients required rescue medication and there was no drug-associated withdrawals. Changes in Clinical Global Impressions-Bipolar Disorder and Clinical Global Impression-Severity of Illness scores showed that treatment with endoxifen was well-tolerated.
Conclusions: Endoxifen at a low daily dose of 8 mg was as efficacious and safe in patients with BPD I acute manic episodes with/without mixed features.
Keywords: YMRS Score; bipolar I disorder; endoxifen; valproate.
© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Comment in
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Efficacy of endoxifen, a protein kinase C inhibitor for acute and mixed mania: Some concerns worth considering.Bipolar Disord. 2021 Sep;23(6):636. doi: 10.1111/bdi.13109. Epub 2021 Jul 23. Bipolar Disord. 2021. PMID: 34214241 No abstract available.
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Reply to Ghosh et al1 . Comments on Endoxifen: A new, protein kinase C inhibitor to treat acute and mixed mania associated with bipolar I disorder.Bipolar Disord. 2022 Feb;24(1):91-92. doi: 10.1111/bdi.13151. Epub 2021 Nov 23. Bipolar Disord. 2022. PMID: 34773320 No abstract available.
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