The MFMU Network was established in 1986 to conduct perinatal studies to improve maternal and fetal outcomes.

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network centers


Operating under cooperative agreements, the current Network is comprised of 14 university-based clinical centers and a data coordinating center.
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Research Projects


More than 50 randomized clinical trials, cohort studies and registries have been completed or are in progress.

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Welcome to MFMU

The Maternal Fetal Medicine Units Network focuses on clinical questions in maternal fetal medicine and obstetrics, particularly with respect to the continuing problem of preterm birth.  The Network provides an infrastructure to conduct multiple large studies simultaneously, in both a cost-effective and timely manner.  The 14 participating clinical centers cover over 160,000 deliveries a year and are racially, ethnically, and geographically diverse, allowing study results to be generalizable to the U.S. population.  Results from MFMU Network studies have impacted clinical practice, both by finding treatments that prevent poor pregnancy outcomes and by stopping ineffective, costly, and potentially harmful therapies.