IV Iron Therapy Cut Transfusion Rates in Pregnancy
A new meta-analysis found intravenous iron significantly reduces the need for blood transfusions during delivery.
Updated on Sept. 29, 2026 in Pregnancy
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Researchers determined that intravenous iron therapy reduces blood transfusion rates in pregnant patients with iron deficiency anemia. The study found a 37 percent reduction in transfusion rates compared to oral iron treatments.
Why it matters
The findings indicate that intravenous iron therapy provides superior outcomes for maternal hemoglobin and ferritin levels at delivery. It also showed a lower rate of mild adverse events, offering a potentially safer and more effective alternative for expectant mothers.
A meta-analysis of 29 randomized clinical trials involving 11,771 patients showed a mean maternal hemoglobin increase of 0.59 g/dL at delivery with IV iron. Researchers also observed a 42 percent reduction in transfusion risk for patients with severe anemia.
The players
JAMA Network Open
This is an open-access, peer-reviewed medical journal published by the American Medical Association that covers all aspects of clinical medicine.
Women and Infants Hospital
Located in Providence, Rhode Island, this facility is a major center for maternal and newborn health research.
The details
The study utilized data from 29 randomized clinical trials that primarily compared iron sucrose for intravenous therapy against ferrous sulfate for oral therapy. Researchers found a 44 percent lower rate of mild adverse events with intravenous administration and reported no severe adverse reactions.
Timeline
February 2018 marked the start of the study database search.
The meta-analysis search concluded in May 2025.
The findings were published in JAMA Network Open on September 23, 2026.
The Big Picture
This study follows the rigorous evidence-based standards established by the JAMA Network Open clinical research program. By meta-analyzing 11,771 patient cases, the research provides a high-level consolidation of clinical data that helps shift obstetric protocols away from oral-only iron therapy.
Expectant mothers diagnosed with iron deficiency anemia may discuss intravenous therapy options with their doctors as a potentially more effective alternative to daily pills. This approach could significantly reduce the likelihood of requiring a blood transfusion during the delivery hospitalization.
The takeaway
Intravenous iron appears to be a more efficient and better-tolerated treatment for addressing anemia during pregnancy compared to traditional oral supplements. Patients should consult with their healthcare providers to evaluate if this therapy is appropriate for their specific clinical needs.
Further reading
Learn more about the latest clinical standards in Pregnancy.
Source note: This article includes information reported by Medscape.
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