{"nct_id":"NCT03835975","title":"Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination","status":"COMPLETED","status_verified_date":"2021-02","start_date":"2019-02-12","start_date_type":"ACTUAL","primary_completion_date":"2020-02-12","primary_completion_date_type":"ACTUAL","completion_date":"2020-02-12","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}