{"nct_id":"NCT03239561","title":"Evaluation of Tau Protein in the Brain of Participants With Alzheimer's Disease Compared to Healthy Participants","status":"COMPLETED","status_verified_date":"2025-04","start_date":"2017-09-06","start_date_type":"ACTUAL","primary_completion_date":"2018-04-30","primary_completion_date_type":"ACTUAL","completion_date":"2018-04-30","completion_date_type":"ACTUAL","phases":["EARLY_PHASE1"],"tickers":["JNJ"]}