A Potential Link to Recurrent Pregnancy Loss: Monoclonal Anti-PF4 Antibodies’ Role
Flora Peyvandi, Professor of Internal Medicine-Hemostasis and Thrombosis Unit, University of Milan, former President of ISTH, shared a post on X:
”Monoclonal Anti –Platelet Factor 4 Antibodies in Recurrent Pregnancy Loss.”
Read the full article here.
In a newly published article ”Monoclonal Anti–Platelet Factor 4 Antibodies in Recurrent Pregnancy Loss ” in The New England Journal of Medicine (NEJM) by Natalie R. Bavli et al., the role of monoclonal anti-platelet factor 4 antibodies in cases of recurring misscarriage is discussed.
Emerging evidence suggests that monoclonal anti–platelet factor 4 (PF4) antibodies may play a role in persistent thrombotic thrombocytopenia.
In a recent report, two patients with monoclonal anti-PF4 antibody-mediated thrombosis also experienced chronic intermittent thrombocytopenia and recurrent first-trimester pregnancy losses.
This combination of clinical findings points to a potential association between these antibodies and obstetrical complications, including recurrent pregnancy loss.
Further research in larger cohorts is needed to better understand this possible connection and its implications for maternal health.

More on the latest scientific advancements in the field of thrombosis featured in Hemostasis Today.
-
Oct 18, 2026, 02:43Priya Sriskandarajah: Diagnosis and Management of PV and JAK2-Unmutated Erythrocytosis
-
Oct 18, 2026, 02:41C. Michael Gibson: A Meta-Analysis of DOACs and DAPT After Left Atrial Appendage Closure
-
Oct 18, 2026, 02:27What Hematologists Should Remember About the Person Behind the Platelet Count – ASH
-
Oct 18, 2026, 01:44Marta Velia Antonini: How to Deliver CRRT during ECMO?
-
Oct 18, 2026, 01:19Aamir Saeed: Anticoagulation, Cirrhosis, and Other Risk Factors for Post-ERCP Bleeding
-
Oct 18, 2026, 00:33Elad Asher: Does Opening the Clot Change How a Patient Feels Three Months Later?
-
Oct 18, 2026, 00:22Richa Sharma: Evaluating Heterogeneity in Anticoagulation Treatment Effects in Cryptogenic Stroke
-
Oct 18, 2026, 00:07Irem Karaman Sebin: The Evidence Favoring Warfarin in High-Risk Antiphospholipid Syndrome
-
Oct 18, 2026, 00:07Emma Stevens: Lighting Up Buildings in Red and Blue for World Thrombosis Day