Overview Efficacy of Sildenafil in Preterm Preeclampsia Status: Withdrawn Trial end date: 2017-07-01 Target enrollment: Participant gender: Summary Randomized controlled trial to assess efficacy of Sildenafil in addition to expectant management for the treatment of preterm preeclampsia Phase: Phase 2/Phase 3 Details Lead Sponsor: The University of Texas Health Science Center, HoustonTreatments: Sildenafil Citrate