Observational Study of the Performance of Cephen Reagents in the Context of Research Into Lupus Anticoagulants

  • STATUS
    Recruiting
  • days left to enroll
    87
  • participants needed
    200
  • sponsor
    University Hospital, Strasbourg, France
Updated on 7 January 2022

Summary

Lupus anticoagulants (are antiphospholipid antibodies (PSA), the screening of which is done by demonstrating prolongation of coagulation times corrected by the intake of phospholipids (PL).

Learned societies (ISTH, CLSI) thus recommend, for the research of LA, to carry out initially two screening tests with a low concentration in PL: a time of diluted Russell viper venom (DRVVT) as well as a time activated partial thromboplastin (TCA). If one of these screening tests is positive, it is recommended to perform a second confirmation test using the same principle (DRVVT or TCA) and containing a higher concentration of PL.

The current LA screening method at the Hematology Laboratory of Strasbourg University Hospital includes: a pair of DRVVT screening / confirmation (STA-Staclot DRVV Screen and Confirm, Diagnostica Stago, France) and a screening TCA (PTT-A , Diagnostica Stago, France).

This study aims to compare with the current method of the investigators a pair of TCA screening / confirmation (Cephen LS / Cephen, Hyphen Biomed, France).

Details
Condition Lupus Anticoagulant
Clinical Study IdentifierNCT05172778
SponsorUniversity Hospital, Strasbourg, France
Last Modified on7 January 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Major subject
blood sample already analyzed in the laboratory as part of the treatment by the reference method
Patient who did not express his opposition to the reuse of his data and his blood sample for the technical study

Exclusion Criteria

Minor patient
Patient under curatorship, guardianship or legal protection
Patient who expressed his opposition to the use of his data
Insufficient sample
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