Evidence map›Paper›PMID 30046759›Full record

ReviewResearch and practice in thrombosis and haemostasis2018

Performing and interpreting individual pharmacokinetic profiles in patients with Hemophilia A or B: Rationale and general considerations.

Alfonso Iorio, Andrea N Edginton, Victor Blanchette, Jan Blatny, Ana Boban, Marjon Cnossen, Peter Collins, Stacy E Croteau, Katheljin Fischer, Daniel P Hart and 9 more

Abstract readReview
In one paragraph

Review in Research and practice in thrombosis and haemostasis, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  13. First experience of a hemophilia monitoring platform: florio HAEMO.Research and practice in thrombosis and haemostasis · 2022
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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

19 authors.

Alfonso IorioDepartment of Health Research, Methods, Evidence and Impact McMaster University Hamilton ON Canada.ORCID 0000-0002-3331-8766
Andrea N EdgintonSchool of Pharmacy University of Waterloo Waterloo ON Canada.
Victor BlanchetteDivision of Hematology/Oncology Hospital for Sick Children and Department of Pediatrics University of Toronto Toronto ON Canada.
Jan BlatnyDepartment of Paediatric Haematology University Hospital Brno Brno Czech Republic.
Ana BobanDepartment of Internal Medicine University Hospital Center Zagreb Croatia.
Marjon CnossenDepartment of Pediatric Hematology Erasmus University Medical Center Sophia Children's Hospital Rotterdam The Netherlands.
Peter CollinsArthur Bloom Haemophilia Centre School of Medicine University Hospital of Wales Cardiff University Cardiff UK.
Stacy E CroteauBoston Hemophilia Center Boston Children's Hospital Boston MA USA.
Katheljin FischerVan Creveldkliniek University Medical Center Utrecht University Utrecht The Netherlands.
Daniel P HartThe Royal London Hospital Haemophilia Centre, Barts and The London School of Medicine and Dentistry London UK.
Shinya ItoUniversity of Toronto Toronto ON Canada.
Joan Korth-BradleyPfizer Collegeville PA USA.
Stefan LethagenSobi Stockholm Sweden.
David LillicrapDepartment of Pathology & Molecular Medicine Queen's University Kingston ON Canada.
Mike MakrisDepartment of Infection, Immunity& Cardiovascular Disease University of Sheffield Sheffield UK.
Ron MathôtHospital Pharmacy-Clinical Pharmacology Academic Medical Centre Amsterdam The Netherlands.
Massimo MorfiniItalian Association Haemophilia Centers Milan Italy.
Ellis J NeufeldSt. Jude Children's Research Hospital Memphis TN USA.
Jeffrey SpearsGrifols Durham NC USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIn a separate document, we have provided specific guidance on performing individual pharmacokinetic (PK) studies using limited samples in persons with hemophilia with the goal to optimize prophylaxis with clotting factor concentrates. This paper, intended for clinicians, aims to describe how to interpret and apply PK properties obtained in persons with hemophilia.

methodsThe members of the Working Party on population PK (PopPK) of the ISTH SSC Subcommittee on Factor VIII and IX and rare bleeding disorders, together with additional hemophilia and PK experts, completed a survey and ranking exercise whereby key areas of interest in the field were identified. The group had regular web conferences to refine the manuscript's scope and structure, taking into account comments from the external feedback to the earlier document.

resultsMany clinical decisions in hemophilia are based on some form of explicit or implicit PK assessment. Individual patient PK profiles can be analyzed through traditional or PopPK methods, with the latter providing the advantage of fewer samples needing to be collected on any prophylaxis regimen, and without the need the for a washout period. The most useful presentation of PK results for clinical decision making are a curve of the factor activity level over time, the time to achieve a certain activity level, or related parameters like half-life or exposure (AUC). Software platforms have been developed to deliver this information to clinicians at the point of care. Key characteristics of studies measuring average PK parameters were reviewed, outlining what makes a credible head-to-head comparison among different concentrates. Large data collections of PK and treatment outcomes currently ongoing will advance care in the future.

conclusionsTraditionally used to compare different concentrates, PK can support tailoring of hemophilia treatment by individual profiling, which is greatly simplified by adopting a PopPK/Bayesian method and limited sampling protocol.

Indexed as

factor IXfactor VIIIpopulation pharmacokineticstailored prophylaxistailoring

Identifiers

PMID30046759
PMCPMC6046594

What OpenQuestion holds

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Registered trials

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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.