Diagnostic accuracy: To assess the diagnostic accuracy of non-criteria aPL (anti-vimentin/cardiolipin and anti-phosphatidylserine/prothrombin) in identifying APS in patients with thrombosis/ recurrent adverse pregnancy outcomes
Study summary
Multicentre no-profit, national, (cross-sectional diagnostic) retrospective study, promoted by the Italian Society for Rheumatology.
The main objective of the study is to assess the diagnostic accuracy of non-criteria aPL (anti-vimentin/cardiolipin and anti-phosphatidylserine/prothrombin) in identifying APS in patients with thrombosis/recurrent adverse pregnancy outcomes.
Eligibility
Sex
ALL
Min age
18 Years
Max age
65 Years
Healthy volunteers
No
INCLUSION CRITERIA:
1. Group 1 \[APS\]: Patients fulfilling the classification criteria for antiphospholipid syndrome (seropositive APS, SP-APS)
2. Group 2 \[SN-APS\]: patients with seronegative APS (SN-APS): with clinical criteria (thrombotic or obstetric) for APS, persistently negative for aPL, and with clinical features highly suggestive of APS (recurrent events, thrombotic + obstetrical events, extra-criteria manifestations, other autoimmune diseases)
3. Group 3: patients with clinical criteria (thrombotic or obstetric) for APS, negative for aPL, but without clinical features highly suggestive of APS (recurrent events, thrombotic + obstetrical events, extra-criteria manifestations, other autoimmune diseases).
4. Age \< 65 years (at event time)
5. Less than 5 years from the first even
EXCLUSION CRITERIA
1. Group 2 and 3: patients with a known cause of thrombosis or obstetrical manifestations
2. Deceased patients
3. Less than 5 years from the first event
Primary outcome measure(s)
Diagnostic accuracy of non-criteria aPL — 0 months Evaluation of the sensitivity and specificity of non-criteria aPL (anti-vimentin/cardiolipin and anti-phosphatidylserine/prothrombin) in identifying APS in patients with thrombosis/recurrent adverse pregnancy outcomes
Trial sites (1)
Facility
City
Region
Status
Umberto I Polyclinic, Rome- Department of Rheumatology
Roma
Rome
Recruiting
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This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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