To evaluate the treatment efficacy and safety usig extended release nifedipine, as maintenance therapy to pregnant women who were hospitalized and treated for preterm labor until 34 weeks' gestation. After the PTL will stop, we will randomize these women for the treatment group and the control (no treatment) group. The main outcome will be preterm delivery before 34 weeks' gestation. the secondary outcome will be the side effects of the medication and the newborn/mother health variables.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Nifedipine extended release PO 30 mg X2/d until 34 weeks' gestation
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