{"nct_id":"NCT06673069","title":"Hero: A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics (PK) and Pharmacodynamics (PD) of ION269 in Participants With Down Syndrome (DS) at Risk for Alzheimer's Disease (AD)","status":"ACTIVE_NOT_RECRUITING","status_verified_date":"2025-09","start_date":"2024-12-20","start_date_type":"ACTUAL","primary_completion_date":"2027-02","primary_completion_date_type":"ESTIMATED","completion_date":"2027-03","completion_date_type":"ESTIMATED","phases":["PHASE1"],"tickers":["IONS"]}