Analyzing the effectiveness of caplacizumab for treating acquired thrombotic thrombocytopenic purpura

Retrospective Analysis of the Efficiency of Caplacizumab in the Treatment of Acquired Thrombotic Thrombocytopenic Purpura (aTTP)- REACT-2020

Observational University of Cologne · NCT04985318

This study is trying to see how well caplacizumab works for people with acquired thrombotic thrombocytopenic purpura and what factors might affect their recovery.

Quick facts

Study typeObservational
Enrollment350 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Cologne Academic / other
Drugs / interventionscaplacizumab
Locations1 site (Cologne)
Trial IDNCT04985318 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate the use of caplacizumab in patients with acquired thrombotic thrombocytopenic purpura (aTTP) across multiple centers in Germany. It will assess the real-world efficacy of the treatment, identify factors predicting patient outcomes, and develop new treatment algorithms to enhance patient care and reduce costs. The study will include patients who have received at least one dose of caplacizumab and will analyze their clinical data retrospectively.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with a confirmed diagnosis of an acute episode of acquired thrombotic thrombocytopenic purpura who have received caplacizumab.

Not a fit: Patients with hereditary thrombotic thrombocytopenic purpura or those unable to provide informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with aTTP, enhancing their overall outcomes.

How similar studies have performed: While this study focuses on a specific treatment in a real-world setting, similar studies have shown promise in evaluating the efficacy of caplacizumab for aTTP.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Confirmed diagnosis of an acute episode of acquired thrombotic thrombocytopenic purpura
* Treatment with at least one single dose of caplacizumab (10 mg i.v. or s.c.)
* Male or female patients ≥ 18 years of age
* signed written informed consent

Exclusion Criteria:

* Hereditary thrombotic thrombocytopenic purpura
* disability to give informed consent

Where this trial is running

Cologne

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Acquired Thrombotic Thrombocytopenic PurpuraaTTPcaplacizumab
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.