Overview Effects of ACS in Twin With LPB: Study Protocol for a RCT Status: Recruiting Trial end date: 2022-12-31 Target enrollment: Participant gender: Summary This study will be the first study that evaluates the effectiveness of antenatal corticosteroid (ACS) in late preterm twin neonates. Phase: Phase 2/Phase 3 Details Lead Sponsor: Seoul National University HospitalTreatments: BetamethasoneBetamethasone benzoateBetamethasone sodium phosphateBetamethasone ValerateBetamethasone-17,21-dipropionate