{"nct_id":"NCT06688058","title":"A Trial to Evaluate Tolerability and Immunogenicity of V540D in Healthy Adults (V540D-004)","status":"RECRUITING","status_verified_date":"2025-10","start_date":"2024-12-20","start_date_type":"ACTUAL","primary_completion_date":"2026-11-30","primary_completion_date_type":"ESTIMATED","completion_date":"2026-11-30","completion_date_type":"ESTIMATED","phases":["PHASE1"],"tickers":["MRK"]}