Overview Study of Pharmacology of 17-OHPC in Pregnancy Status: Completed Trial end date: 2014-02-01 Target enrollment: Participant gender: Summary We are examining the pharmacology of 17-OHPC in pregnancy, specifically between the second and third trimesters. Phase: Phase 2 Details Lead Sponsor: University of PittsburghCollaborators: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)National Institutes of Health (NIH)Treatments: 11-hydroxyprogesterone17 alpha-Hydroxyprogesterone Caproate17-alpha-hydroxy-progesterone caproate