Evidence map›Paper›PMID 33537532›Full record

ArticleResearch and practice in thrombosis and haemostasis2021

Diagnosis and follow-up of thrombotic thrombocytopenic purpura with an automated chemiluminescent ADAMTS13 activity immunoassay.

Nicolas Beranger, Sandrine Benghezal, Bérangère S Joly, Sophie Capdenat, Adeline Delton, Alain Stepanian, Paul Coppo, Agnès Veyradier

Open access · goldAbstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. A Vortex-Shear-Based Assay for Cleavage of Multimeric VWF by ADAMTS13.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. ADAMTS13 Antibody and Inhibitor Assays.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  8. ADAMTS13 Activity: Screening Test Protocol.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  9. Article
  10. Article
  11. Review
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Nicolas BerangerService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Sandrine BenghezalService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Bérangère S JolyService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Sophie CapdenatService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Adeline DeltonService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Alain StepanianService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Paul CoppoFrench National Reference Centre for Thrombotic Microangiopathies Assistance Publique - Hôpitaux de Paris France.
Agnès VeyradierService d'hématologie Biologique Hôpital Lariboisière, AP-HP.Nord and EA3518 Institut de Recherche Saint-Louis Université de Paris Paris France.
Hôpital Lariboisière · FRAssistance Publique – Hôpitaux de Paris · FRHôpital Saint-Antoine · FRUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThrombotic thrombocytopenic purpura (TTP) is a life-threatening thrombotic microangiopathy (TMA) caused by a severe functional deficiency in ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type I repeats-13), the specific von Willebrand factor (VWF) cleaving protease. ADAMTS13 activity is essential to diagnose TTP but remains challenging to assess, as reference ADAMTS13 activity assays are manual and time consuming. Current techniques also lack robustness in low detectable ADAMTS13 activity range, which could prove problematic for therapy-driven monitoring.

objectivesThe HemosIL AcuStar ADAMTS13 activity assay is a fast, automated chemiluminescent assay, the performance of which remains to be evaluated prospectively on very large cohorts of patients with TMA and in real-life conditions. PATIENTS AND

methodsOur study was conducted over two successive sequences: a retrospective evaluation followed by a "real-life" prospective evaluation. Overall, we evaluated the HemosIL AcuStar ADAMTS13 activity assay on 539 citrated plasma samples. We extensively studied linearity, limit of detection, contamination, intra-assay and interassay precisions with a specific focus on levels < 25 IU/dL. Diagnostic performances for the detection of < 10 IU/dL ADAMTS13 activity and overall method comparison were conducted with the fluorescence resonance energy transfer (FRETS)-VWF73 assay as the reference method.

resultsTechnical performance proved excellent. Robustness in low detectable ADAMTS13 activity range was good, potentially qualifying this assay for therapy-driven monitoring. Comparison with the FRETS-VWF73 assay was satisfactory (

conclusionThe HemosIL AcuStar ADAMTS13 activity assay is a fast, reliable, automated technique well adapted as a first-line ADAMTS13 activity assay for TTP diagnosis and follow-up.

Indexed as

ADAMTS13 proteinbiological monitoringchemiluminescent assaydiagnosisthrombotic thrombocytopenic purpura

Identifiers

PMID33537532
PMCPMC7845081
OpenAlexW3116263317

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.