{"nct_id":"NCT01962493","title":"An Efficacy Study of Stain Control of a 67% Sodium Bicarbonate Containing Toothpaste on Chlorhexidine Tooth Staining","status":"COMPLETED","status_verified_date":"2015-02","start_date":"2013-09","start_date_type":null,"primary_completion_date":"2013-11","primary_completion_date_type":"ACTUAL","completion_date":"2013-11","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}