Promising ITP drug trial pulled before it even started

NCT ID NCT06291415

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study was designed to test the safety and tolerability of a new drug called HMPL-523 (sovleplenib) in adults with immune thrombocytopenia (ITP), a condition where the immune system destroys platelets, causing bleeding problems. The trial was withdrawn before enrolling any participants, so no results are available. It would have included adults who had not responded to at least one prior ITP treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
HMPL-523 (sovleplenib), a Syk inhibitor

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Canberra Hospital

    Canberra, Australia

  • Center for Cancer and Blood Disorders

    Bethesda, Maryland, 20817, United States

  • Charite university

    Berlin, 10117, Germany

  • Childrens Hospital of California

    Irvine, California, 92868, United States

  • Clinica Universidad de Navarra

    Madrid, 28027, Spain

  • East Carolina University, Brody School of Medicine

    Greenville, North Carolina, 27834, United States

  • Fundacion Jimenez Diaz

    Madrid, 28040, Spain

  • Georgetown University Medical Center - Georgetown Lombardi Comprehensive Cancer Center

    Georgetown, Delaware, 20007, United States

  • Hospital Gregorio Maranon Madrid

    Madrid, 28007, Spain

  • Hospital Infanta Leonor

    Madrid, 28031, Spain

  • Hospital Morales Meseguer

    Murcia, 30008, Spain

  • Hospital Universitari Vall d'Hebron

    Barcelona, Spain

  • Hospital del Mar Barcelona

    Barcelona, 08003, Spain

  • Marien Hospital Dusseldorf

    Düsseldorf, 40479, Germany

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Oklahoma Cancer Specialists and Research Institute

    Tulsa, Oklahoma, 74146, United States

  • Oslo University Hospital

    Oslo, Norway

  • Peninsula Private Hospital

    Frankston, Victoria, Australia

  • Royal Adelaide Hospital

    Adelaide, Australia

  • San Juan Oncology Associates

    Farmington, New Mexico, 87401, United States

  • Sykehuset Ostfold Kalnes (fosta) / Osfold Hospital Trust (MSL)

    Grålum, 1714, Norway

  • Taussig Cancer Institute

    Cleveland, Ohio, 44106, United States

  • Texas Oncology San Antonio Medical Center

    San Antonio, Texas, 78240, United States

  • The Perth Blood Institute (PBI) Hollywood Specialist Centre

    West Perth, Western Australia, Australia

  • UMG Gottingen Hämatologie

    Göttingen, Germany

  • University Hospital of Schleswig-Holstein, Department of Haematology and Oncology

    Lübeck, Germany

  • University de Burgos

    Burgos, 09001, Spain

  • University of Washington (UW) Medical Center

    Seattle, Washington, 98195, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.