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Intermittent preventive treatment with sulfadoxine–pyrimethamine (S–P) is recommended during pregnancy in malaria-endemic areas, but parasite resistance is eroding its efficacy. Investigators conducted a double-blind, randomized superiority trial in rural Uganda to assess safety and efficacy of intermittent preventive therapy with dihydroartemisinin–piperaquine (D–P) versus S–P. HIV-negative pregnant women (12–20 weeks' gestation) were randomly assigned to monthly D–P or S–P. At enrollment, 51% had malaria parasites detected by microscopy.
The primary analysis included 666 women with live births; the primary endpoint was composite adverse birth outcomes (low birthweight, preterm birth, small for gestational age). Adverse infant outcomes did …