This clinical trial is focused on studying the effects of a treatment for depression that occurs alongside cancer. The study will explore the use of three different substances: psilocybin, ketamine hydrochloride, and midazolam. Psilocybin is a compound that has been found in certain types of mushrooms and is being investigated for its potential to quickly improve mood. Ketamine hydrochloride is a medication that has been used for anesthesia and pain relief, and it is also being studied for its antidepressant effects. Midazolam, which is often used to help with anxiety and sedation, will serve as a control substance in this study.
The purpose of the study is to evaluate how effective psilocybin is in treating depression in patients who also have cancer, compared to ketamine and midazolam. Participants will receive one of these substances in the form of a hard capsule taken by mouth. The study will last for several weeks, during which participants will be monitored to see how their symptoms change over time. The study will include regular check-ins to assess mood and overall well-being, using various scales and questionnaires to measure changes in depression and quality of life.
Throughout the study, participants will have the opportunity to enter an open extension phase, where they may continue to receive treatment. The study aims to provide insights into how these substances can help improve the mental health of individuals dealing with the dual challenges of depression and cancer. The findings could potentially lead to new treatment options for those affected by these conditions.



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