External Multicenter Validation of the APTTO Model for Prolonged APTT Using Clot Waveform Analysis
Recruiting
Observational Study
Coagulation Disorder, Blood
Prolonged APTT
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Sex
- Any
- Study type
- Observational
- Participants needed
- 1,500 (estimated)
- Sponsor
- Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz · Other
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About This Trial
Prolonged activated partial thromboplastin time (APTT) is a frequent laboratory finding that may reflect a broad spectrum of underlying conditions, ranging from benign laboratory abnormalities to clinically relevant hemostatic disorders. Clot waveform analysis (CWA), automatically generated during routine APTT testing by optical coagulation analyzers, provides additional quantitative and qualitati…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
1. Patients of any age (pediatric and adult populations) undergoing coagulation testing with:
\- Prolonged activated partial thromboplastin time (APTT), defined as an APTT ratio ≥ 1.25.
\- Normal prothrombin time (PT), according to local laboratory reference ranges.
2. A…
Contacts