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Raethke M, van Hunsel F, Luxi N, Lieber T, Bellitto C, Mulder E, Ciccimarra F, Riefolo F, Thurin NH, Roy D, Morton K, Villalobos F, Batel Marques F, Farcas A, Sonderlichová S, Belitser S, Klungel O, Trifirò G, Sturkenboom MC. Frequency and timing of adverse reactions to COVID-19 vaccines; A multi-country cohort event monitoring study. Vaccine 2024; 42:2357-2369. [PMID: 38448322 DOI: 10.1016/j.vaccine.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/08/2024]
Abstract
INTRODUCTION During the COVID-19 pandemic, EMA set-up a large-scale cohort event monitoring (CEM) system to estimate incidence rates of patient-reported adverse drug reactions (ADRs) of different COVID-19 vaccines across the participating countries. This study aims to give an up to date and in-depth analysis of the frequency of patient-reported ADRs after the 1st, 2nd, and booster vaccination, to identify potential predictors in developing ADRs and to describe time-to-onset (TTO) and time-to-recovery (TTR) of ADRs. METHODS A CEM study was rolled out in a period ranging from February 2021 to February 2023 across multiple European countries; The Netherlands, Belgium, France, the United Kingdom, Italy, Portugal, Romania, Slovakia and Spain. Analysis consisted of a descriptive analyses of frequencies of COVID-19 vaccine-related ADRs for 1st, 2nd and booster vaccination, analysis of potential predictors in developing ADRs with a generalized linear mixed-effects model, analysis of TTO and TTR of ADRs and a sensitivity analysis for loss to follow-up (L2FU). RESULTS A total of 29,837 participants completed at least the baseline and the first follow-up questionnaire for 1st and 2nd vaccination and 7,250 participants for the booster. The percentage of participants who reported at least one ADR is 74.32% (95%CI 73.82-74.81). Solicited ADRs, including injection site reactions, are very common across vaccination moments. Potential predictors for these reactions are the brand of vaccine used, the patient's age, sex and prior SARS-CoV-2 infection. The percentage of serious ADRs in the study is low for 1st and 2nd vaccination (0.24%, 95%CI 0.19--0.31) and booster (0.26%, 95%CI 0.15, 0.41). The TTO was 14 h (median) for dose 1 and slightly longer for dose 2 and booster dose. TTR is generally also within a few days. The effect of L2FU on estimations of frequency is limited. CONCLUSION Despite some limitations due to study design and study-roll out, CEM studies can allow prompt and almost real-time observations of the safety of medications directly from a patient-centered perspective, which can play a crucial role for regulatory bodies during an emergency setting such as the COVID-19 pandemic.
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Affiliation(s)
- Monika Raethke
- Netherlands Pharmacovigilance Centre Lareb, 's, Hertogenbosch, the Netherlands
| | - Florence van Hunsel
- Netherlands Pharmacovigilance Centre Lareb, 's, Hertogenbosch, the Netherlands; Department of PharmacoTherapy, -Epidemiology & -Economics, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, the Netherlands.
| | - Nicoletta Luxi
- Department of Diagnostics and Public Health, University of Verona, Italy
| | - Thomas Lieber
- Netherlands Pharmacovigilance Centre Lareb, 's, Hertogenbosch, the Netherlands
| | - Chiara Bellitto
- Department of Diagnostics and Public Health, University of Verona, Italy
| | - Erik Mulder
- Netherlands Pharmacovigilance Centre Lareb, 's, Hertogenbosch, the Netherlands
| | | | - Fabio Riefolo
- Teamit Institute, Partnerships, Barcelona Health Hub, Barcelona, Spain
| | - Nicolas H Thurin
- Bordeaux PharmacoEpi, INSERM CIC-P 1401, Univ. Bordeaux, Bordeaux, France
| | - Debabrata Roy
- Drug Safety Research Unit (DSRU), Southampton, UK; University of Portsmouth, Portsmouth, UK
| | - Kathryn Morton
- Drug Safety Research Unit (DSRU), Southampton, UK; University of Portsmouth, Portsmouth, UK
| | - Felipe Villalobos
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
| | | | - Andreea Farcas
- Pharmacovigilance Research Center, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Simona Sonderlichová
- Pavol Jozef Šafárik University in Košice, Faculty of Medicine, SLOVACRIN, Slovakia
| | - Svetlana Belitser
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Olaf Klungel
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Gianluca Trifirò
- Department of Diagnostics and Public Health, University of Verona, Italy
| | - Miriam C Sturkenboom
- Department of Biostatistics and Research Support, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, the Netherlands
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Noguchi Y, Tachi T, Teramachi H. Detection algorithms and attentive points of safety signal using spontaneous reporting systems as a clinical data source. Brief Bioinform 2021; 22:6358402. [PMID: 34453158 DOI: 10.1093/bib/bbab347] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 12/14/2022] Open
Abstract
Continuous evaluation of drug safety is needed following approval to determine adverse events (AEs) in patient populations with diverse backgrounds. Spontaneous reporting systems are an important source of information for the detection of AEs not identified in clinical trials and for safety assessments that reflect the real-world use of drugs in specific populations and clinical settings. The use of spontaneous reporting systems is expected to detect drug-related AEs early after the launch of a new drug. Spontaneous reporting systems do not contain data on the total number of patients that use a drug; therefore, signal detection by disproportionality analysis, focusing on differences in the ratio of AE reports, is frequently used. In recent years, new analyses have been devised, including signal detection methods focused on the difference in the time to onset of an AE, methods that consider the patient background and those that identify drug-drug interactions. However, unlike commonly used statistics, the results of these analyses are open to misinterpretation if the method and the characteristics of the spontaneous reporting system cannot be evaluated properly. Therefore, this review describes signal detection using data mining, considering traditional methods and the latest knowledge, and their limitations.
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Affiliation(s)
- Yoshihiro Noguchi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, 1-25-4, Daigakunishi, Gifu 501-1196, Japan
| | - Tomoya Tachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, 1-25-4, Daigakunishi, Gifu 501-1196, Japan
| | - Hitomi Teramachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, 1-25-4, Daigakunishi, Gifu 501-1196, Japan
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Scholl JHG, van Hunsel FPAM, Hak E, van Puijenbroek EP. Time to onset in statistical signal detection revisited: A follow-up study in long-term onset adverse drug reactions. Pharmacoepidemiol Drug Saf 2019; 28:1283-1289. [PMID: 31189217 PMCID: PMC6852418 DOI: 10.1002/pds.4790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 03/19/2019] [Accepted: 03/26/2019] [Indexed: 11/09/2022]
Abstract
Purpose In a previous study, we developed a signal detection method using the time to onset (TTO) of adverse drug reactions (ADRs). The aim of the current study was to investigate this method in a subset of ADRs with a longer TTO and to compare its performance with disproportionality analysis. Methods Using The Netherlands's spontaneous reporting database, TTO distributions for drug—ADR associations with a median TTO of 7 days or more were compared with other drugs with the same ADR using the two‐sample Anderson–Darling (AD) test. Presence in the Summary of Product Characteristics (SPC) was used as the gold standard for identification of a true ADR. Twelve combinations with different values for the number of reports and median TTO were tested. Performance in terms of sensitivity and positive predictive value (PPV) was compared with disproportionality analysis. A sensitivity analysis was performed to compare the results with those from the previous study. Results A total of 38 017 case reports, containing 32 478 unique drug—ADR associations. Sensitivity was lower for the TTO method (range 0.08‐0.34) compared with disproportionality analysis (range 0.60‐0.87), whereas PPV was similar for both methods (range 0.93‐1.0). The results from the sensitivity analysis were similar to the original analysis. Conclusions Because of its low sensitivity, the developed TTO method cannot replace disproportionality analysis as a signal detection tool. It may be useful in combination with other methods.
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Affiliation(s)
- Joep H G Scholl
- Netherlands Pharmacovigilance Centre Lareb, 's-Hertogenbosch, The Netherlands.,Department of PharmacoTherapy - Epidemiology & -Economics, University of Groningen, Groningen, The Netherlands
| | | | - Eelko Hak
- Department of PharmacoTherapy - Epidemiology & -Economics, University of Groningen, Groningen, The Netherlands
| | - Eugène P van Puijenbroek
- Netherlands Pharmacovigilance Centre Lareb, 's-Hertogenbosch, The Netherlands.,Department of PharmacoTherapy - Epidemiology & -Economics, University of Groningen, Groningen, The Netherlands
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