Fetal and neonatal platelet allergy: understanding why some babies bleed
Official title: The Immunobiology of Fetal/Neonatal Alloimmune Thrombocytopenia
Funded at Versiti Blood Health, INC. · NIH-11372201 · Data updated 2026-11-12
A study to understand why maternal antibodies cause serious bleeding in babies with FNAIT, using an animal model and human-relevant clues to improve future care for affected families.
Quick facts
| Grant type | P01 program project |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Versiti Blood Health, INC. NIH-funded |
| Lab location | 1 site (Milwaukee, United States) |
| Project start | August 1, 2024 |
| Project end | July 31, 2029 |
| Funding year | 2026 |
| Award (this year) | $498,141 |
| NIH project number | 5P01HL167668-03 |
| Project ID | NIH-11372201 on NIH RePORTER |
Who could benefit from this research
✓Could help
Patients with or at risk for FNAIT and families concerned about alloimmune platelet issues may benefit from future therapies arising from this work.
✕Less likely to help
This grant focuses on basic and preclinical mechanisms and may not offer direct benefits to individual patients during the study.
What this research studies
This project uses a preclinical animal model of FNAIT to explore how maternal antibodies against fetal platelet antigens lead to severe thrombocytopenia and, in some cases, brain bleeds. Researchers will examine how different antibody subtypes affect platelets and blood vessel cells to identify mechanisms behind disease severity. The goal is to map which antibody features predict worse outcomes so we can guide better prevention and treatment for pregnancies at risk. The work builds on existing knowledge of HPAs, especially HPA-1a, to move toward targeted interventions while respecting safety and ethical considerations in translation to humans.
Why it matters
Potential benefit: Better understanding of the disease could lead to earlier, more precise therapies to prevent brain injury in newborns.
How similar studies have gone: Previous studies have linked specific maternal antibodies to FNAIT severity, and animal models have shown promise in dissecting mechanisms, suggesting potential for future clinical advances.
Where this research is happening
-
Versiti Blood Health, INC.
Milwaukee, United States Active
Researchers
- Principal investigator: Newman, Peter J — Versiti Blood Health, INC.
- Study coordinator: Newman, Peter J
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.