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Published on: August 11, 2015
Single-Dose Synthetic Psilocybin With Psychotherapy for Treatment-Resistant Bipolar Type II Major Depressive
Scott T Aaronson1,2, Andrew van der Vaart2, Tammy Miller1
1Institute for Advanced Diagnostics and Treatment, Sheppard Pratt Health System, Baltimore, Maryland.
Psilocybin shows promise for treating Bipolar II Disorder (BDII) depression. A single dose significantly improved depressive symptoms and quality of life in patients, with no adverse effects on mania or suicidality.
Area of Science:
- Psychiatry
- Neuroscience
- Pharmacology
Background:
- Bipolar II Disorder (BDII) is characterized by debilitating depressive episodes.
- Existing treatments for BDII depression are often insufficient.
- Psilocybin demonstrates rapid antidepressant effects but lacks investigation in bipolar depression.
Purpose of the Study:
- To assess the safety and efficacy of psilocybin in patients diagnosed with Bipolar II Disorder (BDII) experiencing a current depressive episode.
Main Methods:
- An open-label, nonrandomized trial involving 15 participants with BDII and treatment-resistant depression.
- Participants received a single 25 mg dose of synthetic psilocybin, preceded and followed by psychotherapy.
- Depressive symptoms were assessed using the Montgomery-Åsberg Depression Rating Scale (MADRS) and other measures over 12 weeks.
Main Results:
- Significant reductions in MADRS scores were observed at 3 weeks and sustained through 12 weeks post-treatment (P < .001).
- 12 participants met criteria for depression response and remission at study endpoint.
- Improvements were also noted in quality of life and self-rated depressive symptoms, with no significant increase in mania or suicidality scores.
Conclusions:
- Psilocybin, when combined with psychotherapy, appears to be a safe and effective treatment for Bipolar II Disorder (BDII) depression.
- These findings support further research into psychedelic-assisted therapies for this patient population.
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