Johns Hopkins University
The purpose of this study is to evaluate whether ingestion of a drug called psilocybin can increase the effectiveness of amblyopia therapy in adults with amblyopia. Psilocybin is a naturally-occurring psychoactive compound found in many species of mushrooms. It can be ingested orally and can result in strong but short-term (4-6 hours) effects such as changes in perception, thoughts, and emotions.
Participation in this study involves up to 12 visits over 9-13 weeks, including a screening visit, a preparation visit, two all-day experimental drug administration sessions with psilocybin, and eight follow up visits.The purpose of these follow-up visits is to deliver in-lab amblyopia therapy, measure visual function, and monitor safety. Participants will also be asked to complete amblyopia therapy at home: this will involve wearing an eyepatch or an eyeglasses filter over the non-amblyopic eye every day for up to several hours and completing online training exercises.
Inclusion Criteria: * 18 to 65 years old * Have given written informed consent * Have at least a high-school level of education or equivalent (e.g. GED) and be fluent in English * Be healthy and psychologically stable as determined by screening for medical and psychiatric problems via a personal interview, a medical questionnaire, medical history and physical examination, an electrocardiogram (ECG), and routine medical blood and urinalysis laboratory tests * Women who are of child-bearing potential and sexually active agree to use highly effective means of birth control (i.e. implants, inject…
May include: eye-patching, Bangerter filtering, dichoptic training, perceptual learning
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 1 mg of psilocybin.
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 5 mg of psilocybin.
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 10 mg of psilocybin.
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 15 mg of psilocybin.
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 20 mg of psilocybin.
The psilocybin used in this study is synthetically manufactured and formulated under current good manufacturing practices (cGMP). The active drug is encapsulated using a size 0 blue gelatin capsule and contains 25 mg of psilocybin.
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