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Willame C, Dodd C, Durán CE, Elbers RJHJ, Gini R, Bartolini C, Paoletti O, Wang L, Ehrenstein V, Kahlert J, Haug U, Schink T, Diez-Domingo J, Mira-Iglesias A, Carreras JJ, Vergara-Hernández C, Giaquinto C, Barbieri E, Stona L, Huerta C, Martín-Pérez M, García-Poza P, de Burgos A, Martínez-González M, Bryant V, Villalobos F, Pallejà-Millán M, Aragón M, Carreras JJ, Souverein P, Thurin NH, Weibel D, Klungel OH, Sturkenboom MCJM. Background rates of 41 adverse events of special interest for COVID-19 vaccines in 10 European healthcare databases - an ACCESS cohort study. Vaccine 2023; 41:251-262. [PMID: 36446653 PMCID: PMC9678835 DOI: 10.1016/j.vaccine.2022.11.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND In May 2020, the ACCESS (The vACCine covid-19 monitoring readinESS) project was launched to prepare real-world monitoring of COVID-19 vaccines. Within this project, this study aimed to generate background incidence rates of 41 adverse events of special interest (AESI) to contextualize potential safety signals detected following administration of COVID-19 vaccines. METHODS A dynamic cohort study was conducted using a distributed data network of 10 healthcare databases from 7 European countries (Italy, Spain, Denmark, The Netherlands, Germany, France and United Kingdom) over the period 2017 to 2020. A common protocol (EUPAS37273), common data model, and common analytics programs were applied for syntactic, semantic and analytical harmonization. Incidence rates (IR) for each AESI and each database were calculated by age and sex by dividing the number of incident cases by the total person-time at risk. Age-standardized rates were pooled using random effect models according to the provenance of the events. FINDINGS A total number of 63,456,074 individuals were included in the study, contributing to 211.7 million person-years. A clear age pattern was observed for most AESIs, rates also varied by provenance of disease diagnosis (primary care, specialist care). Thrombosis with thrombocytopenia rates were extremely low ranging from 0.06 to 4.53/100,000 person-years for cerebral venous sinus thrombosis (CVST) with thrombocytopenia (TP) and mixed venous and arterial thrombosis with TP, respectively. INTERPRETATION Given the nature of the AESIs and the setting (general practitioners or hospital-based databases or both), background rates from databases that show the highest level of completeness (primary care and specialist care) should be preferred, others can be used for sensitivity. The study was designed to ensure representativeness to the European population and generalizability of the background incidence rates. FUNDING The project has received support from the European Medicines Agency under the Framework service contract nr EMA/2018/28/PE.
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Affiliation(s)
- C Willame
- Department of Datascience & Biostatistics, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands
| | - C Dodd
- Department of Datascience & Biostatistics, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands
| | - CE Durán
- Department of Datascience & Biostatistics, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands
| | - RJHJ Elbers
- Department of Data science & Biostatistic, Data manegement, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands
| | - R Gini
- Agenzia regionale di sanità della Toscana, via Pietro Dazzi 1, 55100 Florence, Italy
| | - C Bartolini
- Agenzia regionale di sanità della Toscana, via Pietro Dazzi 1, 55100 Florence, Italy
| | - O Paoletti
- Agenzia regionale di sanità della Toscana, via Pietro Dazzi 1, 55100 Florence, Italy
| | - L Wang
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | - V Ehrenstein
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | - J Kahlert
- Department of Clinical Epidemiology, Aarhus University Hospital, Denmark
| | - U Haug
- Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology – BIPS, Faculty of Human and Health Sciences, University of Bremen, Germany
| | - T Schink
- Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology – BIPS, 28359 Bremen, Germany
| | - J Diez-Domingo
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO – Public Health), Avenida Cataluña, 21, 46020 Valencia, Spain
| | - A Mira-Iglesias
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO – Public Health), Avenida Cataluña, 21, 46020 Valencia, Spain
| | - JJ Carreras
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO – Public Health), Avenida Cataluña, 21, 46020 Valencia, Spain
| | - C Vergara-Hernández
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO – Public Health), Avenida Cataluña, 21, 46020 Valencia, Spain
| | - C Giaquinto
- Division of Paediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padova, Padova, Italy
| | - E Barbieri
- Division of Paediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padova, Padova, Italy
| | - L Stona
- Fondazione Penta ONLUS, Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Huerta
- Department of Public Health and Maternal and Child Health, Faculty of Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - M Martín-Pérez
- Pharmacoepidemiology and Pharmacovigilance Division, Medicines for Human Use Department, Spanish Agency for Medicines and Medical Devices (AEMPS), Calle Campezo 1, 28022 Madrid, Spain
| | - P García-Poza
- Pharmacoepidemiology and Pharmacovigilance Division, Medicines for Human Use Department, Spanish Agency for Medicines and Medical Devices (AEMPS), Calle Campezo 1, 28022 Madrid, Spain
| | - A de Burgos
- Pharmacoepidemiology and Pharmacovigilance Division, Medicines for Human Use Department, Spanish Agency for Medicines and Medical Devices (AEMPS), Calle Campezo 1, 28022 Madrid, Spain
| | - M Martínez-González
- Pharmacoepidemiology and Pharmacovigilance Division, Medicines for Human Use Department, Spanish Agency for Medicines and Medical Devices (AEMPS), Calle Campezo 1, 28022 Madrid, Spain
| | - V Bryant
- Pharmacoepidemiology and Pharmacovigilance Division, Medicines for Human Use Department, Spanish Agency for Medicines and Medical Devices (AEMPS), Calle Campezo 1, 28022 Madrid, Spain
| | - F Villalobos
- Unitat de Suport a la Recerca Tarragona-Reus, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 43202 Reus, Spain
| | - M Pallejà-Millán
- Unitat de Suport a la Recerca Tarragona-Reus, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 43202 Reus, Spain
| | - M Aragón
- Fundació Institut Universitari per a la recerca a l’Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 08007 Barcelona, Spain
| | - JJ Carreras
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO – Public Health), Avenida Cataluña, 21, 46020 Valencia, Spain
| | - P Souverein
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, PO BOX 80082, 3508 TB Utrecht, the Netherlands
| | - NH Thurin
- INSERM CIC-P1401, Bordeaux PharmacoEpi, Univ. Bordeaux, 146 rue Léo Saignat, 33076 Bordeaux cedex, France
| | - D Weibel
- Department of Datascience & Biostatistics, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands
| | - OH Klungel
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, PO BOX 80082, 3508 TB Utrecht, the Netherlands
| | - MCJM Sturkenboom
- Department of Datascience & Biostatistics, University Medical Center Utrecht, Heidelberglaan 100, the Netherlands,Corresponding author at: Department Datascience & Biostatistics Univerisity Medical Center Utrecht, Heidelberglaan 100, The Netherlands
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Fornari C, Antonazzo IC, Paoletti O, Cei E, Bartolini C, Conti S, Ferrara P, Mantovani LG, Gini R, Mazzaglia G. Use of antidepressants during COVID19 outbreak: a real-world drug-utilization study. Eur J Public Health 2021. [PMCID: PMC8574249 DOI: 10.1093/eurpub/ckab165.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Lockdown measures implementation (LMI) to prevent COVID19 disease diffusion was associated to increased depression and anxiety cases. The main aim was to evaluate whether LMI affected prevalence and incidence of antidepressants (ADs) use, and ADs treatment interruption (TI) in the general population. Methods Adults (≥18 years) with at least 1 dispensing of ADs between 01/01/2019-26/09/2020 were selected from a regional Italian healthcare administrative database. Patients presenting an AD dispensing in the year preceding the first observation were considered as prevalent otherwise as incident users. We divided the studied period into 3 parts: pre-lockdown (01/01/2019-08/03/2020), lockdown (09/03/2020-14/06/2020) and post-lockdown (15/06/2020-27/09/2020). The weekly prevalence (WP) and incidence (WI) per 10,000 inhabitants were compared among periods. Incidence of TI (no dispensing refill within 30 days of the end of its validity) was computed among prevalent AD users. Results The WP (mean of 552.3 per 10,000 pre-lockdown vs 505.5 lockdown phase; relative change: -9%) and WI (5.2 vs 3.7; -29%) of ADs use decreased after LMI. During the post-lockdown phase WP (505.5 vs 495.9; -2%) decreased whereas the WI (3.7 vs 4.3; 16%) slightly increased in relation to the lockdown period, although differences were not statistically significant. Conversely, the incidence of TI increased during lockdown (344.7 vs 384.3; 12%) and post-lockdown (384.3 vs 394.2; 3%) periods, even not always statistically significant. Conclusions Our analysis showed a reduction of ADs use during the early phase of lockdown. Several factors might have impacted on the observed phenomenon (i.e, patient reluctance to start new AD treatment). Considering the mutation of the virus and the potential waves that might occur in the next months, a continuous monitoring of the impact of COVID19 on mental diseases onset and treatment adherence are suggested. Key messages In Italy, the implementation of lockdown measures was followed by a reduction in antidepressants use, even though evidences are that diagnoses of psychiatric disorders increased. Future studies should monitor if these phenomena led to an increase in adverse events potentially correlated with inappropriate treatment of depression.
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Affiliation(s)
- C Fornari
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
| | - IC Antonazzo
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
| | - O Paoletti
- Pharmacoepidemiology Unit, Regional Health Agency of Tuscany, Florence, Italy
| | - E Cei
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
| | - C Bartolini
- Pharmacoepidemiology Unit, Regional Health Agency of Tuscany, Florence, Italy
| | - S Conti
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
- Value-based Healthcare Unit, IRCCS MultiMedica, Sesto San Giovanni, Italy
| | - P Ferrara
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
- Value-based Healthcare Unit, IRCCS MultiMedica, Sesto San Giovanni, Italy
| | - LG Mantovani
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
- Value-based Healthcare Unit, IRCCS MultiMedica, Sesto San Giovanni, Italy
| | - R Gini
- Pharmacoepidemiology Unit, Regional Health Agency of Tuscany, Florence, Italy
| | - G Mazzaglia
- Center for Public Health Research, University of Milano- Bicocca, Monza, Italy
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Testa S, Paoletti O, Legnani C, Dellanoce C, Antonucci E, Cosmi B, Pengo V, Poli D, Morandini R, Testa R, Tripodi A, Palareti G. Low drug levels and thrombotic complications in high-risk atrial fibrillation patients treated with direct oral anticoagulants. J Thromb Haemost 2018; 16:842-848. [PMID: 29532628 DOI: 10.1111/jth.14001] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Indexed: 11/30/2022]
Abstract
Essentials Direct oral anticoagulants (DOACs) do not require laboratory monitoring currently. DOAC specific measurements were performed at trough in patients with atrial fibrillation. Patients who developed thromboembolic events showed lower DOAC plasma levels. This study supports the concept of measuring DOAC levels at steady state. SUMMARY Background Direct oral anticoagulants (DOACs) are administered at fixed doses without the need for dose adjustment according to laboratory testing. High interindividual variability in drug blood levels has been shown with all DOACs. To evaluate a possible relationship between DOAC C-trough anticoagulant levels and thromboembolic events, 565 consecutive naive patients with atrial fibrillation (AF) were enrolled in this study performed within the START Laboratory Registry. Methods DOAC-specific measurements (diluted thrombin time or anti-activated factor II calibrated for dabigatran; anti-activated FX calibrated for rivaroxaban or apixaban) at C-trough were performed locally at steady state within 15-25 days after the start of treatment. For each DOAC, the interval of C-trough levels, from the limit of quantification to the highest value, was subdivided into four equal classes, and results were attributed to these classes; the median values of results were also calculated. Thromboembolic complications occurring during 1 year of follow-up were recorded. Results Thromboembolic events (1.8%) occurred in 10 patients who had baseline C-trough levels in the lowest class of drug levels. The incidence of thromboembolic events among patients with DOAC C-trough levels in the lowest level class was 2.4%, and that in the remaining groups was 0%. The patients with thrombotic complications also had a higher mean CHA2 DS2 -VASc score than that of the total patient population: 5.3 (95% confidence interval [CI] 4.3-6.3 versus 3.0 (95% CI 2.9-3.1). Conclusion In this study cohort, thrombotic complications occurred only in DOAC-treated AF patients who had very low C-trough levels, with a relatively high CHA2 DS2 -VASc score. Larger studies are warranted to confirm these preliminary observations.
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Affiliation(s)
- S Testa
- Hemostasis and Thrombosis Center, Ospedale di Cremona, Cremona, Italy
| | - O Paoletti
- Hemostasis and Thrombosis Center, Ospedale di Cremona, Cremona, Italy
| | - C Legnani
- Angiology and Blood Coagulation, University Hospital of Bologna, Bologna, Italy
| | - C Dellanoce
- Hemostasis and Thrombosis Center, Ospedale di Cremona, Cremona, Italy
| | - E Antonucci
- Arianna Anticoagulazione Foundation, Bologna, Italy
| | - B Cosmi
- Angiology and Blood Coagulation, University Hospital of Bologna, Bologna, Italy
| | - V Pengo
- Department of Cardiac, Thoracic and Vascular Sciences, Cardiology Clinic, Thrombosis Center, University of Padua, Padua, Italy
| | - D Poli
- Thrombosis Center, AOU Careggi, Firenze, Italy
| | - R Morandini
- Hemostasis and Thrombosis Center, Ospedale di Cremona, Cremona, Italy
| | - R Testa
- Clinical Laboratory and Molecular Diagnosis, INRCA-IRCCS National Institute, Ancona, Italy
| | - A Tripodi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, IRCCS CàGranda Maggiore Hospital Foundation, Milano, Italy
| | - G Palareti
- Arianna Anticoagulazione Foundation, Bologna, Italy
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Cini M, Legnani C, Cosmi B, Testa S, Dellanoce C, Paoletti O, Marcucci R, Poli D, Paniccia R, Pengo V, Tripodi A, Palareti G. Comparison of five specific assays for determination of dabigatran plasma concentrations in patients enrolled in the START-Laboratory Register. Int J Lab Hematol 2018; 40:229-236. [DOI: 10.1111/ijlh.12772] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 11/15/2017] [Indexed: 11/28/2022]
Affiliation(s)
- M. Cini
- Department of Angiology and Blood Coagulation; S. Orsola-Malpighi University Hospital; Bologna Italy
| | - C. Legnani
- Department of Angiology and Blood Coagulation; S. Orsola-Malpighi University Hospital; Bologna Italy
| | - B. Cosmi
- Department of Angiology and Blood Coagulation; S. Orsola-Malpighi University Hospital; Bologna Italy
| | - S. Testa
- Haemostasis and Thrombosis Center; Department of Laboratory Medicine; AO Istituti Ospitalieri; Cremona Italy
| | - C. Dellanoce
- Haemostasis and Thrombosis Center; Department of Laboratory Medicine; AO Istituti Ospitalieri; Cremona Italy
| | - O. Paoletti
- Haemostasis and Thrombosis Center; Department of Laboratory Medicine; AO Istituti Ospitalieri; Cremona Italy
| | - R. Marcucci
- Thrombosis Center; Department of Experimental and clinical Medicine; University of Florence; Florence Italy
| | - D. Poli
- Thrombosis Center; Department of Experimental and clinical Medicine; University of Florence; Florence Italy
| | - R. Paniccia
- Center for Bleeding Disorders; Careggi University Hospital; Florence Italy
| | - V. Pengo
- Department of Cardiothoracic and Vascular Sciences; University Hospital of Padua; Padua Italy
| | - A. Tripodi
- Department of Clinical Sciences and Community Health; Angelo Bianchi Bonomi Hemophilia and Thrombosis Center; Università degli Studi di Milano; Milan Italy
- IRCCS Maggiore Hospital Foundation; Milan Italy
| | - G. Palareti
- Cardiovascular Diseases; University of Bologna, Coordinator of the START-Register; Bologna Italy
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Tosetto A, Testa S, Martinelli I, Poli D, Cosmi B, Lodigiani C, Ageno W, De Stefano V, Falanga A, Nichele I, Paoletti O, Bucciarelli P, Antonucci E, Legnani C, Banfi E, Dentali F, Bartolomei F, Barcella L, Palareti G. External validation of the DASH prediction rule: a retrospective cohort study. J Thromb Haemost 2017; 15:1963-1970. [PMID: 28762665 DOI: 10.1111/jth.13781] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 11/27/2022]
Abstract
Essentials Predicting recurrences may guide therapy after unprovoked venous thromboembolism (VTE). We evaluated the DASH score in 827 patients with unprovoked VTE to verify prediction accuracy. A DASH score ≤ 1 had a cumulative recurrence risk at 1 year of 3.6%, as predicted by the model. The DASH score performed better in younger (< 65 years old) subjects. SUMMARY Background The DASH prediction model has been proposed as a guide to identify patients at low risk of recurrence of venous thromboembolism (VTE), but has never been validated in an independent cohort. Aims To validate the calibration and discrimination of the DASH prediction model, and to evaluate the DASH score in a predefined patient subgroup aged > 65 years. Methods Patients with a proximal unprovoked deep vein thrombosis (DVT) or pulmonary embolism (PE) who received a full course of vitamin K antagonist or direct oral anticoagulant (> 3 months) and had D-dimer measured after treatment withdrawal were eligible. The DASH score was computed on the basis of the D-dimer level after therapy withdrawal and personal characteristics at the time of the event. Recurrent VTE events were symptomatic proximal or distal DVT/PE, and were analyzed with a time-dependent analysis. Observed 12-month and 24-month recurrence rates were compared with recurrence rates predicted by the DASH model. Results We analyzed a total of 827 patients, of whom 100 (12.1%) had an objectively documented recurrence. As compared with the original DASH cohort, there was a greater proportion of subjects with a 'low-risk' (≤ 1) DASH score (66.3% versus 51.6%, P < 0.001). The slope of the observed versus expected cumulative incidence at 2 years was 0.71 (95% confidence interval 0.51-1.45). The c-statistic was lower for subjects aged > 65 years (0.54) than for younger subjects (0.72). Conclusions These results confirm the validity of DASH prediction model, particularly in young subjects. The recurrence risk in elderly patients (> 65 years) was, however, > 5% even in those with the lowest DASH scores.
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Affiliation(s)
- A Tosetto
- Hematology Department, San Bortolo Hospital, Vicenza, Italy
| | - S Testa
- Hemostasis and Thrombosis Center, AO Istituti Ospitalieri di Cremona, Cremona, Italy
| | - I Martinelli
- Hemophilia and Thrombosis Center, Fondazione Angelo Bianchi Bonomi, IRCCS Ospedale Ca' Granda, Dipartimento di Medicina Interna, Università degli Studi di Milano, Milan, Italy
| | - D Poli
- Thrombosis Center, Dipartimento Oncologico AOU Careggi, Florence, Italy
| | - B Cosmi
- Department of Angiology and Blood Coagulation, S. Orsola Malpighi University Hospital, Bologna, Italy
| | - C Lodigiani
- Thrombosis and Hemorragic Diseases Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - W Ageno
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - V De Stefano
- Institute of Hematology, Catholic University, Rome, Italy
| | - A Falanga
- Thrombosis and Hemostasis Center, Department of Immunohematology and Transfusion Medicine, Bergamo, Italy
| | - I Nichele
- Hematology Department, San Bortolo Hospital, Vicenza, Italy
| | - O Paoletti
- Hemostasis and Thrombosis Center, AO Istituti Ospitalieri di Cremona, Cremona, Italy
| | - P Bucciarelli
- Hemophilia and Thrombosis Center, Fondazione Angelo Bianchi Bonomi, IRCCS Ospedale Ca' Granda, Dipartimento di Medicina Interna, Università degli Studi di Milano, Milan, Italy
| | - E Antonucci
- Fondazione Arianna Anticoagulazione, Bologna, Italy
| | - C Legnani
- Department of Angiology and Blood Coagulation, S. Orsola Malpighi University Hospital, Bologna, Italy
| | - E Banfi
- Thrombosis and Hemorragic Diseases Unit, IRCCS Humanitas Research Hospital, Milan, Italy
| | - F Dentali
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - F Bartolomei
- Institute of Hematology, Catholic University, Rome, Italy
| | - L Barcella
- Thrombosis and Hemostasis Center, Department of Immunohematology and Transfusion Medicine, Bergamo, Italy
| | - G Palareti
- Fondazione Arianna Anticoagulazione, Bologna, Italy
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Testa S, Legnani C, Tripodi A, Paoletti O, Pengo V, Abbate R, Bassi L, Carraro P, Cini M, Paniccia R, Poli D, Palareti G. Poor comparability of coagulation screening test with specific measurement in patients receiving direct oral anticoagulants: results from a multicenter/multiplatform study. J Thromb Haemost 2016; 14:2194-2201. [PMID: 27566988 DOI: 10.1111/jth.13486] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 11/30/2022]
Abstract
Essentials Prothrombin and partial thromboplastin time (PT/PTT) measure direct oral anticoagulants (DOACs). PT, PTT and specific tests for DOACs were performed on patients treated for atrial fibrillation. Normal PT/PTT don't exclude DOAC activity and their prolongation doesn't confirm DOAC action. The use of PT or PTT to evaluate DOAC activity could cause dangerous misinterpretations. SUMMARY Background Prothrombin time (PT) and activated partial thromboplastin time (APTT) have been proposed to measure the effect of oral anti-activated factor X (FXa) or anti-activated FII drugs, respectively. Aims To evaluate the relationships and responsiveness of PT and APTT versus direct oral anticoagulant (DOAC) concentrations measured with specific coagulation tests performed with different platforms in four Italian anticoagulation clinics. Methods Six hundred and thirty-five patients with atrial fibrillation participated in the study: 240 were receiving dabigatran, 264 were receiving rivaroxaban, and 131 were receiving apixaban. Blood was taken at trough and peak within the first month (15-25 days) of treatment. PT, APTT, diluted thrombin time (dTT) calibrated for dabigatran and anti-FXa calibrated for rivaroxaban or apixaban were determined. Results For dabigatran, the correlation between APTT and dTT ranged from r = 0.80 to r = 0.62. For rivaroxaban, the correlation between the anti-FXa assay and PT ranged from r = 0.91 to r = 0.73. For apixaban, the correlation between the anti-FXa assay and PT was lower than for the two other drugs (r = 0.81 to r = 0.54). Despite the above significant correlations, the responsiveness of PT or APTT was relatively poor. A discrepancy between global testing and DOAC plasma concentrations was shown in a considerable proportion of patients, depending on the platform and drug, with values ranging from 6% to 62%. Conclusions Overall, poor responsiveness of the screening tests to DOAC concentrations was observed. PT and APTT normal values cannot exclude DOAC anticoagulant activity, and PT or APTT prolongation is not always associated with DOAC anticoagulant effect as determined with specific tests.
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Affiliation(s)
- S Testa
- Department of Laboratory Medicine, Hemostasis and Thrombosis Center, AO Istituti Ospitalieri, Cremona, Italy
| | - C Legnani
- Angiology and Blood Coagulation, University Hospital of Bologna, Bologna, Italy
| | - A Tripodi
- Department of Clinical Sciences and Community Health, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Università degli Studi di Milano, IRCCS Cà Granda Maggiore Hospital Foundation, Milan, Italy
| | - O Paoletti
- Department of Laboratory Medicine, Hemostasis and Thrombosis Center, AO Istituti Ospitalieri, Cremona, Italy
| | - V Pengo
- Department of Cardiothoracic and Vascular Sciences, University Hospital of Padua, Padua, Italy
| | - R Abbate
- Thrombosis Center, Department of Heart and Vessels, University Hospital of Florence, Florence, Italy
| | - L Bassi
- Department of Laboratory Medicine, Hemostasis and Thrombosis Center, AO Istituti Ospitalieri, Cremona, Italy
| | - P Carraro
- Department of Laboratory Medicine, ULSS 16 and University-Hospital of Padova, Padova, Italy
| | - M Cini
- Angiology and Blood Coagulation, University Hospital of Bologna, Bologna, Italy
| | - R Paniccia
- Thrombosis Center, Department of Heart and Vessels, University Hospital of Florence, Florence, Italy
| | - D Poli
- Thrombosis Center, Department of Heart and Vessels, University Hospital of Florence, Florence, Italy
| | - G Palareti
- Cardiovascular Diseases, University of Bologna, Bologna, Italy
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Testa S, Paoletti O, Bassi L, Dellanoce C, Morandini R, Lippi G. A global quality control system to check PT-INR portable monitor for Antivitamin K antagonists. Int J Lab Hematol 2014; 37:71-8. [DOI: 10.1111/ijlh.12239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 03/10/2014] [Indexed: 11/29/2022]
Affiliation(s)
- S. Testa
- Haemostasis and Thrombosis Center; Department of Clinical Pathology; AO Istituti Ospitalieri; Cremona Italy
| | - O. Paoletti
- Haemostasis and Thrombosis Center; Department of Clinical Pathology; AO Istituti Ospitalieri; Cremona Italy
| | - L. Bassi
- Haemostasis and Thrombosis Center; Department of Clinical Pathology; AO Istituti Ospitalieri; Cremona Italy
| | - C. Dellanoce
- Haemostasis and Thrombosis Center; Department of Clinical Pathology; AO Istituti Ospitalieri; Cremona Italy
| | - R. Morandini
- Haemostasis and Thrombosis Center; Department of Clinical Pathology; AO Istituti Ospitalieri; Cremona Italy
| | - G. Lippi
- Laboratory of Clinical Chemistry and Hematology; Academic Hospital of Parma; Parma Italy
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Testa S, Paoletti O, Ronca E, Rigolli A, Alatri A, Zimmermann A, Riccardi A. P13 Prevention of venous thromboembolism in pregnant women: management strategy on a large health care area. Thromb Res 2009. [DOI: 10.1016/s0049-3848(09)70058-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Paoletti O, Alatri A, Morstabilini G, Testa S. PROTHROMBIN TIME: COMPARISON BETWEEN DIFFERENT REAGENTS. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb01861.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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