Trial of Propranolol in Adults and Adolescents With ASD and Predictors of Response
Autism
About this trial
This is an interventional treatment trial for Autism focused on measuring Propranolol
Eligibility Criteria
Inclusion Criteria:
- For participants with autism: High-functioning, native-English speaking subjects with ASD aged 15-30. High-functioning ASD is defined in this study by the DSM-V criteria plus Autism Diagnostic Interview-Revised (ADI-R) criteria for Autism, and Wechsler Abbreviated Scales of Intelligence (WASI) full scale IQ of at least 85.
Exclusion Criteria:
- For participants with autism: Non-autism learning disability (e.g. dyslexia),
- major psychiatric diagnosis (e.g. major depression, schizophrenia, bipolar disorder),
- other neurological diagnosis,
- major head trauma,
- any of the following exclusionary criteria related to propranolol (diabetes, reactive airway/pulmonary disease, thyroid disease, bradyarrhythmias, unexplained syncope, narrow angle glaucoma, pregnancy, known hypersensitivity/adverse reaction to beta-blockers),
- any of the following exclusionary criteria related to placebo (severe allergy to lactose),
- any of the following exclusionary criteria related to the psychophysiological measurements (history of rash from adhesives).
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
Propranolol arm
Placebo arm
Propranolol will be administered via oral capsule(s) daily for a period of 10 weeks, involving gradual titration up from 40mg to 100mg and subsequent tapering off of the drug. The titration/tapering schedule will be as follows: Week 1: 40 mg propranolol (1 capsule, nightly) Week 2: 80 mg propranolol (2 40mg capsules, morning & night) Weeks 3 - 8: 100 mg propranolol (3 capsules, 40 mg/morning, 20mg/afternoon, & 40mg/night) Week 9: 60 mg propranolol (2 capsules, 40 mg/morning & 20mg/night) Week 10: 20 mg propranolol (1 capsule, nightly) Week 11: no capsules
Placebo will be administered via lactose-filled oral capsule(s) daily for a period of 10 weeks. The schedule of placebo administration will be as follows: Week 1: 1 capsule, nightly Week 2: 2 capsules, morning & night Weeks 3 - 8: 3 capsules, morning, afternoon, & night Week 9: 2 capsules, morning & night Week 10: 1 capsule, nightly Week 11: no capsules