Can a simple blood test tell two forms of a clotting disorder apart?
NCT ID NCT07142239
First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time
Summary
This study looks at three blood markers — mean platelet volume (MPV), platelet-to-lymphocyte ratio (PLR), and neutrophil-to-lymphocyte ratio (NLR) — in people with antiphospholipid syndrome (APS), an autoimmune condition that raises the risk of blood clots and pregnancy complications. Researchers want to see whether these markers differ between primary APS (occurring alone) and secondary APS (occurring with another autoimmune disease like lupus). The goal is to find a simple, inexpensive way to help tell the two forms apart.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If clear differences emerge, these simple blood tests could help doctors distinguish between primary and secondary antiphospholipid syndrome more easily.
- What could go wrong
- This is an observational study, so it cannot prove cause and effect. The markers may not differ enough to be useful in practice.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients will be categorized as: Primary APS: APS without other systemic autoimmune diseases Secondary APS: APS associated with autoimmune diseases such as systemic lupus erythematosus (SLE)
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults (age ≥18 years) * Diagnosis of APS based on updated Sydney classification criteria confirmed by: Clinical history of thrombosis and/or pregnancy morbidity, Persistent presence (≥12 weeks) of antiphospholipid antibodies (aCL, anti-β2-glycoprotein I, and/or lupus anticoagulant) Exclusion criteria: * Current infection or inflammatory condition unrelated to APS * Hematological malignancies or other blood disorders * Recent blood transfusion or platelet-altering medications other than APS treatments
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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New Valley University
RECRUITINGAl Khārjah, Kharga Oasis, 72511, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a common antiplatelet drug replace warfarin after APS-Related stroke?
- A blood test that could predict clots in autoimmune disease?
- Blood platelet trends may reveal hidden risk in autoimmune disease
- Immune clues in the blood may foretell heart trouble
- New fingerstick test for blood thinner monitoring put to the test
- New MRI study seeks hidden stroke causes in rare blood disorder