Story perspectives

Pilot Apheresis Study Extends Preeclampsia Pregnancies 10 Days

4/29/2026

Summary

Story summary

Dr. Ravi Thadhani led a U.S. study testing a blood-filtering apheresis therapy for preeclampsia.
The pilot enrolled 16 patients with preterm preeclampsia before 34 weeks (median 30 weeks), with sFlt-1 falling about 17% in the nine who received 1-3 sessions.
Treated patients extended pregnancy 10 days versus four days untreated, while baboon sessions cut sFlt-1 by roughly 50%, a larger reduction than in humans.
Dr. Lana McClements said the results are promising but modest.

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Story summary

Dr. Ravi Thadhani led a U.S. study testing a blood-filtering apheresis therapy for preeclampsia.
The pilot enrolled 16 patients with preterm preeclampsia before 34 weeks (median 30 weeks), with sFlt-1 falling about 17% in the nine who received 1-3 sessions.
Treated patients extended pregnancy 10 days versus four days untreated, while baboon sessions cut sFlt-1 by roughly 50%, a larger reduction than in humans.
Dr. Lana McClements said the results are promising but modest.