Investigating a new treatment for a rare blood disorder linked to leukemia risk

RepSox and its analog for prophylactic intervention in RUNX1 haploinsufficiency FPDMM

NIH-funded research Children's Hosp of Philadelphia · NIH-11094271

This study is looking at how a special compound called RepSox can help people with Familial Platelet Disorder, which affects their blood platelets and increases the risk of leukemia, by improving platelet function and reducing bleeding risks.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionChildren's Hosp of Philadelphia NIH-funded
Lab location1 site (Philadelphia, United States)
Project IDNIH-11094271 on NIH RePORTER

What this research studies

This research focuses on Familial Platelet Disorder with associated Myeloid Malignancy (FPDMM), a rare condition caused by a deficiency in the RUNX1 transcription factor. The study aims to evaluate the effects of a compound called RepSox, which has shown promise in correcting platelet defects and reducing the risk of leukemia in laboratory models. By using patient-derived stem cells, researchers will assess how RepSox can improve platelet function and potentially lower bleeding risks in affected individuals. The ultimate goal is to develop a clinical application for patients suffering from this disorder.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals diagnosed with Familial Platelet Disorder with associated Myeloid Malignancy due to RUNX1 haploinsufficiency.

Not a fit: Patients without RUNX1 haploinsufficiency or those with other unrelated blood disorders may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide a new treatment option that reduces bleeding risks and the likelihood of developing leukemia for patients with FPDMM.

How similar studies have performed: While this approach is novel in the context of FPDMM, similar strategies targeting the TGFb pathway have shown promise in other hematological conditions.

Where this research is happening

Philadelphia, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.