Tailored drug regimen shows promise for rare blood disorder

NCT ID NCT04720261

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether giving the drug caplacizumab based on regular blood tests (ADAMTS13 activity) could improve outcomes for adults with acquired thrombotic thrombocytopenic purpura (aTTP), a rare condition causing dangerous blood clots. The trial enrolled 58 adults and monitored for death, lack of response, or worsening disease within 30 days. The goal was to see if a personalized approach could reduce complications while using the drug more efficiently.

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Conditions

The condition(s) this trial relates to.

acquired thrombotic thrombocytopenic purpura

As listed by the trial registrant

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

Contacts and locations

Locations

  • Ah-Hp Hopital Saint Louis

    Paris, 75010, France

  • Ap-Hm Hopital de La Conception

    Marseille, 13005, France

  • Ap-Hp Hopital de Cochin

    Paris, 75014, France

  • Ap-Hp Hopital de Necker

    Paris, 75015, France

  • Ap-Hp Hopital de St Antoine

    Paris, 75571, France

  • CHU CAEN

    Caen, 14033, France

  • Ch Edouard Herriot

    Lyon, 69003, France

  • Ch Valenciennes

    Valenciennes, 59300, France

  • Chu Amiens

    Amiens, 80054, France

  • Chu Angers

    Angers, 49933, France

  • Chu Besancon

    Besançon, 25030, France

  • Chu Bordeaux

    Bordeaux, 33404, France

  • Chu Clermont-Ferrand

    Clermont-Ferrand, 63003, France

  • Chu Lille

    Lille, 59037, France

  • Chu Limoges

    Limoges, 87042, France

  • Chu Montpellier

    Montpellier, 34295, France

  • Chu Nancy

    Nancy, 54035, France

  • Chu Nantes

    Nantes, 44093, France

  • Chu Reims

    Reims, 51092, France

  • Chu Rennes

    Rennes, 35033, France

  • Chu Rouen

    Rouen, 76031, France

  • Chu Tours

    Tours, 37044, France

  • Fort de France

    Fort-de-France, 97261, Martinique

  • Reunion Sud

    Saint-Paul, 97448, France