Overview Nifedipine vs Placebo for Maintenance Tocolysis of Preterm Labor. Status: Completed Trial end date: 2008-08-01 Target enrollment: Participant gender: Summary Comparing nifedipine to placebo for the maintenance tocolysis of preterm labor Phase: N/A Details Lead Sponsor: Stanford UniversityCollaborator: Santa Clara Valley Health & Hospital SystemTreatments: Nifedipine