Efficacy and Safety of MgSO4 as Tocolytics Compared to Ritodrine in Preterm Labor

Summary

Ritodrine is the conventional and the only approved tocolytics in Korea(by KFDA), although it was withdrawn from the US market more than 10 years ago. As already known well, ritodrine has many side effects such as tachycardia, hyperglycemia, pulmonary edema and so on. When such complications of ritodrine appears, clinicians consider of using MgSO4 as substitute, but its use is off-the-label yet in Korea. Facing this discrepancy, the investigators want to compare the efficacy and safety of MgSO4 with ritodrine and prove that MgSO4 is not inferior to ritodrine as tocolytics. For the singleton and twin pregnancies between 24+0weeks and 34 completed weeks whose uterine contraction is more than 4 during 20 minutes period with their cervical ripening is more than 25%, the investigators randomise them in Ritodrine group or MgSO4 group. Then, the investigators will check the change of their interval of uterine contraction, degree of pain and the appearance of any side effects or treatment failure sign.

Timeline

Start

2015-09-22

Primary completion

2016-11-29

Completion

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Publications

• Wilson A, Hodgetts-Morton VA, Marson EJ, Markland AD, Larkai E, Papadopoulou A, Coomarasamy A, Tobias A, Chou D, Oladapo OT, Price MJ, Morris K, Gallos ID. Tocolytics for delaying preterm birth: a network meta-analysis (0924). Cochrane Database Syst Rev. 2022 Aug 10;8(8):CD014978. doi: 10.1002/14651858.CD014978.pub2.

Drugs

Indications

No indication recorded.