Effects of Erythropoietin on Depressive Symptoms and Neurocognitive Deficits in Depression and Bipolar Disorder

Summary

Depression and bipolar disorder (mania and depression) may be related to problems with nerve cells not being regenerated as fast as normal and are accompanied by cognitive difficulties including memory, attention and planning problems. There is thus a need for better, more efficient treatments with effects on cognitive function. Erythropoietin (Epo) is involved in brain repair and may be a candidate for future treatment strategies. The investigators have demonstrated that a single dose of Epo improves mood and reduces the processing of negative emotional information in healthy volunteers similar to effects seen with antidepressants. With the current study the investigators aim to build upon this discovery by investigating whether repeated Epo administration has antidepressant effects and is able to reverse cognitive difficulties in patients with depression or bipolar disorder. It is hypothesized that Epo will improve mood in treatment-resistant depression and improve cognitive function in this group and in patients with bipolar disorder in remission. If the study reveals beneficial effects of Epo, this would highlight Epo as a candidate compound for future treatment of depression and bipolar disorder, with the potential to directly promote brain repair mechanisms.

Timeline

Start

2009-09

Primary completion

2012-10

Completion

2012-10

Publications

• Miskowiak KW, Forman JL, Vinberg M, Siebner HR, Kessing LV, Macoveanu J. Impact of pretreatment interhemispheric hippocampal asymmetry on improvement in verbal learning following erythropoietin treatment in mood disorders: a randomized controlled trial. J Psychiatry Neurosci. 2020 May 1;45(3):198-205. doi: 10.1503/jpn.180205.
• Miskowiak KW, Rush AJ Jr, Gerds TA, Vinberg M, Kessing LV. Targeting Treatments to Improve Cognitive Function in Mood Disorder: Suggestions From Trials Using Erythropoietin. J Clin Psychiatry. 2016 Dec;77(12):e1639-e1646. doi: 10.4088/JCP.15m10480.
• Miskowiak KW, Macoveanu J, Vinberg M, Assentoft E, Randers L, Harmer CJ, Ehrenreich H, Paulson OB, Knudsen GM, Siebner HR, Kessing LV. Effects of erythropoietin on memory-relevant neurocircuitry activity and recall in mood disorders. Acta Psychiatr Scand. 2016 Sep;134(3):249-59. doi: 10.1111/acps.12597. Epub 2016 Jun 3.
• Miskowiak KW, Vinberg M, Glerup L, Paulson OB, Knudsen GM, Ehrenreich H, Harmer CJ, Kessing LV, Siebner HR, Macoveanu J. Neural correlates of improved executive function following erythropoietin treatment in mood disorders. Psychol Med. 2016 Jun;46(8):1679-91. doi: 10.1017/S0033291716000209. Epub 2016 Mar 21.
• Vinberg M, Miskowiak K, Hoejman P, Pedersen M, Kessing LV. The effect of recombinant erythropoietin on plasma brain derived neurotrophic factor levels in patients with affective disorders: a randomised controlled study. PLoS One. 2015 May 26;10(5):e0127629. doi: 10.1371/journal.pone.0127629. eCollection 2015.
• Miskowiak KW, Vinberg M, Macoveanu J, Ehrenreich H, Koster N, Inkster B, Paulson OB, Kessing LV, Skimminge A, Siebner HR. Effects of Erythropoietin on Hippocampal Volume and Memory in Mood Disorders. Biol Psychiatry. 2015 Aug 15;78(4):270-7. doi: 10.1016/j.biopsych.2014.12.013. Epub 2014 Dec 18.
• Miskowiak KW, Ehrenreich H, Christensen EM, Kessing LV, Vinberg M. Recombinant human erythropoietin to target cognitive dysfunction in bipolar disorder: a double-blind, randomized, placebo-controlled phase 2 trial. J Clin Psychiatry. 2014 Dec;75(12):1347-55. doi: 10.4088/JCP.13m08839.
• Miskowiak KW, Vinberg M, Harmer CJ, Ehrenreich H, Knudsen GM, Macoveanu J, Hansen AR, Paulson OB, Siebner HR, Kessing LV. Effects of erythropoietin on depressive symptoms and neurocognitive deficits in depression and bipolar disorder. Trials. 2010 Oct 13;11:97. doi: 10.1186/1745-6215-11-97.

Drugs

Indications