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Haguinet F, Tibaldi F, Dessart C, Bate A. Tree-temporal scan statistics for safety signal detection in vaccine clinical trials. Pharm Stat 2024. [PMID: 38622834 DOI: 10.1002/pst.2391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/02/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024]
Abstract
The evaluation of safety is critical in all clinical trials. However, the quantitative analysis of safety data in clinical trials poses statistical difficulties because of multiple potentially overlapping endpoints. Tree-temporal scan statistic approaches address this issue and have been widely employed in other data sources, but not to date in clinical trials. We evaluated the performance of three complementary scan statistical methods for routine quantitative safety signal detection: the self-controlled tree-temporal scan (SCTTS), a tree-temporal scan based on group comparison (BGTTS), and a log-rank based tree-temporal scan (LgRTTS). Each method was evaluated using data from two phase III clinical trials, and simulated data (simulation study). In the case study, the reference set was adverse events (AEs) in the Reference Safety Information of the evaluated vaccine. The SCTTS method had higher sensitivity than other methods, and after dose 1 detected 80 true positives (TP) with a positive predictive value (PPV) of 60%. The LgRTTS detected 49 TPs with 69% PPV. The BGTTS had 90% of PPV with 38 TPs. In the simulation study, with simulated reference sets of AEs, the SCTTS method had good sensitivity to detect transient effects. The LgRTTS method showed the best performance for the detection of persistent effects, with high sensitivity and expected probability of type I error. These three methods provide complementary approaches to safety signal detection in clinical trials or across clinical development programmes. All three methods formally adjust for multiple testing of large numbers of overlapping endpoints without being excessively conservative.
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Affiliation(s)
| | | | | | - Andrew Bate
- Global Safety, GSK, Middlesex, UK
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
- Department of Medicine, NYU Grossman School of Medicine, New York, New York, USA
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Dong G, Bate A, Haguinet F, Westman G, Dürlich L, Hviid A, Sessa M. Optimizing Signal Management in a Vaccine Adverse Event Reporting System: A Proof-of-Concept with COVID-19 Vaccines Using Signs, Symptoms, and Natural Language Processing. Drug Saf 2024; 47:173-182. [PMID: 38062261 PMCID: PMC10821983 DOI: 10.1007/s40264-023-01381-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 01/28/2024]
Abstract
INTRODUCTION The Vaccine Adverse Event Reporting System (VAERS) has already been challenged by an extreme increase in the number of individual case safety reports (ICSRs) after the market introduction of coronavirus disease 2019 (COVID-19) vaccines. Evidence from scientific literature suggests that when there is an extreme increase in the number of ICSRs recorded in spontaneous reporting databases (such as the VAERS), an accompanying increase in the number of disproportionality signals (sometimes referred to as 'statistical alerts') generated is expected. OBJECTIVES The objective of this study was to develop a natural language processing (NLP)-based approach to optimize signal management by excluding disproportionality signals related to listed adverse events following immunization (AEFIs). COVID-19 vaccines were used as a proof-of-concept. METHODS The VAERS was used as a data source, and the Finding Associated Concepts with Text Analysis (FACTA+) was used to extract signs and symptoms of listed AEFIs from MEDLINE for COVID-19 vaccines. Disproportionality analyses were conducted according to guidelines and recommendations provided by the US Centers for Disease Control and Prevention. By using signs and symptoms of listed AEFIs, we computed the proportion of disproportionality signals dismissed for COVID-19 vaccines using this approach. Nine NLP techniques, including Generative Pre-Trained Transformer 3.5 (GPT-3.5), were used to automatically retrieve Medical Dictionary for Regulatory Activities Preferred Terms (MedDRA PTs) from signs and symptoms extracted from FACTA+. RESULTS Overall, 17% of disproportionality signals for COVID-19 vaccines were dismissed as they reported signs and symptoms of listed AEFIs. Eight of nine NLP techniques used to automatically retrieve MedDRA PTs from signs and symptoms extracted from FACTA+ showed suboptimal performance. GPT-3.5 achieved an accuracy of 78% in correctly assigning MedDRA PTs. CONCLUSION Our approach reduced the need for manual exclusion of disproportionality signals related to listed AEFIs and may lead to better optimization of time and resources in signal management.
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Affiliation(s)
- Guojun Dong
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | - Andrew Bate
- Global Safety, GSK, Brentford, UK
- Department of Non‑Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Gabriel Westman
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Luise Dürlich
- Department of Linguistics and Philology, Uppsala University, Uppsala, Sweden
- Department of Computer Science, RISE Research Institutes of Sweden, Kista, Sweden
| | - Anders Hviid
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Maurizio Sessa
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark.
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Haguinet F, Bate A, Stegmann JU. The futility of adverse drug event reporting systems for monitoring known safety issues: A case study of myocardial infarction with rofecoxib and other drugs. Pharmacoepidemiol Drug Saf 2024; 33:e5719. [PMID: 37867313 DOI: 10.1002/pds.5719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/24/2023]
Affiliation(s)
| | - Andrew Bate
- Global Safety, GSK, Brentford, UK
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
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Al-Azzawi F, Mahmoud I, Haguinet F, Bate A, Sessa M. Developing an Artificial Intelligence-Guided Signal Detection in the Food and Drug Administration Adverse Event Reporting System (FAERS): A Proof-of-Concept Study Using Galcanezumab and Simulated Data. Drug Saf 2023; 46:743-751. [PMID: 37300636 PMCID: PMC10345058 DOI: 10.1007/s40264-023-01317-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2023] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Time- and resource-demanding activities related to processing individual case safety reports (ICSRs) include manual procedures to evaluate individual causality with the final goal of dismissing false-positive safety signals. Eminent experts and a representative from pharmaceutical industries and regulatory agencies have highlighted the need to automatize time- and resource-demanding procedures in signal detection and validation. However, to date there is a sparse availability of automatized tools for such purposes. OBJECTIVES ICSRs recorded in spontaneous reporting databases have been and continue to be the cornerstone and the most important data source in signal detection. Despite the richness of this data source, the incessantly increased amount of ICSRs recorded in spontaneous reporting databases has generated problems in signal detection and validation due to the increase in resources and time needed to process cases. This study aimed to develop a new artificial intelligence (AI)-based framework to automate resource- and time-consuming steps of signal detection and signal validation, such as (1) the selection of control groups in disproportionality analyses and (2) the identification of co-reported drugs serving as alternative causes, to look to dismiss false-positive disproportionality signals and therefore reduce the burden of case-by-case validation. METHODS The Summary of Product Characteristics (SmPC) and the Anatomical Therapeutic Chemical (ATC) classification system were used to automatically identify control groups within and outside the chemical subgroup of the proof-of-concept drug under investigation, galcanezumab. Machine learning, specifically conditional inference trees, has been used to identify alternative causes in disproportionality signals. RESULTS By using conditional inference trees, the framework was able to dismiss 20.00% of erenumab, 14.29% of topiramate, and 13.33% of amitriptyline disproportionality signals on the basis of purely alternative causes identified in cases. Furthermore, of the disproportionality signals that could not be dismissed purely on the basis of the alternative causes identified, we estimated a 15.32%, 25.39%, and 26.41% reduction in the number of galcanezumab cases to undergo manual validation in comparison with erenumab, topiramate, and amitriptyline, respectively. CONCLUSION AI could significantly ease some of the most time-consuming and labor-intensive steps of signal detection and validation. The AI-based approach showed promising results, however, future work is needed to validate the framework.
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Affiliation(s)
- Fahed Al-Azzawi
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark.
| | - Israa Mahmoud
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
| | | | - Andrew Bate
- GSK, London, UK
- London School of Hygiene and Tropical Medicine, University of London, London, UK
- New York University, New York, NY, USA
| | - Maurizio Sessa
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 160, 2100, Copenhagen, Denmark
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Mahaux O, Powell G, Haguinet F, Sobczak P, Saini N, Barry A, Mustafa A, Bate A. Identifying Safety Subgroups at Risk: Assessing the Agreement Between Statistical Alerting and Patient Subgroup Risk. Drug Saf 2023; 46:601-614. [PMID: 37131012 PMCID: PMC10153776 DOI: 10.1007/s40264-023-01306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2023] [Indexed: 05/04/2023]
Abstract
INTRODUCTION Identifying individual characteristics or underlying conditions linked to adverse drug reactions (ADRs) can help optimise the benefit-risk ratio for individuals. A systematic evaluation of statistical methods to identify subgroups potentially at risk using spontaneous ADR report datasets is lacking. OBJECTIVES In this study, we aimed to assess concordance between subgroup disproportionality scores and European Medicines Agency Pharmacovigilance Risk Assessment Committee (PRAC) discussions of potential subgroup risk. METHODS The subgroup disproportionality method described by Sandberg et al., and variants, were applied to statistically screen for subgroups at potential increased risk of ADRs, using data from the US FDA Adverse Event Reporting System (FAERS) cumulative from 2004 to quarter 2 2021. The reference set used to assess concordance was manually extracted from PRAC minutes from 2015 to 2019. Mentions of subgroups presenting potential differentiated risk and overlapping with the Sandberg method were included. RESULTS Twenty-seven PRAC subgroup examples representing 1719 subgroup drug-event combinations (DECs) in FAERS were included. Using the Sandberg methodology, 2 of the 27 could be detected (one for age and one for sex). No subgroup examples for pregnancy and underlying condition were detected. With a methodological variant, 14 of 27 examples could be detected. CONCLUSIONS We observed low concordance between subgroup disproportionality scores and PRAC discussions of potential subgroup risk. Subgroup analyses performed better for age and sex, while for covariates not well-captured in FAERS, such as underlying condition and pregnancy, additional data sources should be considered.
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Affiliation(s)
- Olivia Mahaux
- Safety Innovation and Analytics, GSK, Wavre, Belgium.
| | - Greg Powell
- Safety Innovation and Analytics, GSK, Durham, NC, USA
| | | | | | - Namrata Saini
- Safety Evaluation and Risk Management, GSK, Bangalore, India
| | - Allen Barry
- University of North Carolina, Chapel Hill, NC, USA
| | | | - Andrew Bate
- Safety Innovation and Analytics, GSK, London, UK
- London School of Hygiene and Tropical Medicine, University of London, London, UK
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Singh T, Delannois F, Haguinet F, Molo LY. Correction to: Review of Over 15 Years Postmarketing Safety Surveillance Spontaneous Data for the Human Rotavirus Vaccine (Rotarix) on Intussusception. Drug Saf 2022; 45:401. [PMID: 35325445 PMCID: PMC9021087 DOI: 10.1007/s40264-022-01167-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Tina Singh
- GSK, Avenue Fleming 20, 1300, Wavre, Belgium.
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Tavares-Da-Silva F, Mahaux O, Van Holle L, Haguinet F, Seifert H, Stegmann JU. Post-Marketing Safety Surveillance for the Adjuvanted Recombinant Zoster Vaccine: Methodology. Drug Saf 2020; 43:1223-1234. [PMID: 32862397 PMCID: PMC7686206 DOI: 10.1007/s40264-020-00989-2] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A diligent, systematic, regular review of aggregate safety data is essential, particularly early after vaccine introduction, as this is when safety signals not identified during clinical development may emerge. In October 2017, the US Centers for Disease Control and Prevention Advisory Committee on Immunization Practices recommended the adjuvanted recombinant zoster vaccine (RZV; Shingrix, GSK) as the preferred vaccine for preventing herpes zoster (HZ) and related complications in immunocompetent adults aged ≥ 50 years. Subsequently, GSK experienced an unprecedented high demand for RZV. In this methodology paper, we summarize the enhanced measures undertaken to assess RZV safety during its early post-marketing experience in the USA, Canada and Germany. In addition to the routine signal-detection methods already in place for all vaccines, GSK established tailored and enhanced safety monitoring for RZV based on aggregate data of spontaneous reports and manufacturing data. Proactive, near real-time detection and evaluation of signals was a key objective. A dedicated in-house signal-detection tool customized for RZV was employed on a weekly (rather than the routine monthly) basis, allowing for a centralized, more frequent review of data on a single web-based platform. We also identified the background incidence rates of preselected medical events of interest in the first countries to introduce RZV (USA, Canada and Germany) to perform observed-to-expected analyses. This approach may offer a solution to the challenges associated with the assessment and monitoring of vaccine safety in an efficient and timely manner in the context of high vaccine uptake.
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Affiliation(s)
| | | | - Lionel Van Holle
- GSK, Avenue Fleming 20, 1300 Wavre, Belgium
- Present Address: UCB Pharma, 1420 Braine-l’Alleud, Belgium
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Nichols MK, Andrew MK, Ye L, Hatchette TF, Ambrose A, Boivin G, Bowie W, Dos Santos G, Elsherif M, Green K, Haguinet F, Katz K, Leblanc J, Loeb M, MacKinnon-Cameron D, McCarthy A, McElhaney JE, McGeer A, Powis J, Richardson D, Semret M, Sharma R, Shinde V, Smyth D, Trottier S, Valiquette L, Webster D, McNeil SA. The Impact of Prior Season Vaccination on Subsequent Influenza Vaccine Effectiveness to Prevent Influenza-related Hospitalizations Over 4 Influenza Seasons in Canada. Clin Infect Dis 2020; 69:970-979. [PMID: 30508064 DOI: 10.1093/cid/ciy1009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 11/30/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Recent studies have demonstrated the possibility of negative associations between prior influenza vaccines and subsequent influenza vaccine effectiveness (VE), depending on season and strain. We investigated this association over 4 consecutive influenza seasons (2011-2012 through 2014-2015) in Canada. METHODS Using a matched test-negative design, laboratory-confirmed influenza cases and matched test-negative controls admitted to hospitals were enrolled. Patients were stratified into 4 groups according to influenza vaccine history (not vaccinated current and prior season [referent], vaccinated prior season only, vaccinated current season only, and vaccinated both current and prior season). Conditional logistic regression was used to estimate VE; prior vaccine impact was assessed each season for overall effect and effect stratified by age (<65 years, ≥65 years) and type/subtype (A/H1N1, A/H3N2, influenza B). RESULTS Overall, mainly nonsignificant associations were observed. Trends of nonsignificant decreased VE among patients repeatedly vaccinated in both prior and current season relative to the current season only were observed in the A/H3N2-dominant seasons of 2012-2013 and 2014-2015. Conversely, in 2011-2012, during which B viruses circulated, and in 2013-2014, when A/H1N1 circulated, being vaccinated in both seasons tended to result in a high VE in the current season against the dominant circulating subtype. CONCLUSIONS Prior vaccine impact on subsequent VE among Canadian inpatients was mainly nonsignificant. Even in circumstances where we observed a trend of negative impact, being repeatedly vaccinated was still more effective than not receiving the current season's vaccine. These findings favor continuation of annual influenza vaccination recommendations, particularly in older adults. CLINICAL TRIALS REGISTRATION NCT01517191.
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Affiliation(s)
- M K Nichols
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - M K Andrew
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - L Ye
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - T F Hatchette
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - A Ambrose
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - G Boivin
- Centre Hospitalier Universitaire de Québec, Québec City, Canada
| | - W Bowie
- University of British Columbia, Vancouver, Canada
| | - G Dos Santos
- Business and Decision Life Sciences, Bruxelles, Belgium.,Present affiliation: GSK, Wavre, Belgium
| | - M Elsherif
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - K Green
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | | | - K Katz
- North York General Hospital, Toronto
| | - J Leblanc
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | - M Loeb
- McMaster University, Hamilton
| | - D MacKinnon-Cameron
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
| | | | | | - A McGeer
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | - J Powis
- Michael Garron Hospital, Toronto
| | | | - M Semret
- McGill University, Montreal, Québec
| | - R Sharma
- GSK, Mississauga, Ontario, Canada
| | - V Shinde
- GSK, King of Prussia, Pennsylvania.,Present affiliation: Novavax Vaccines, Washington, D.C
| | - D Smyth
- The Moncton Hospital, New Brunswick
| | - S Trottier
- Centre Hospitalier Universitaire de Québec, Québec City, Canada
| | | | - D Webster
- Saint John Hospital Regional Hospital, Dalhousie University, New Brunswick, Canada
| | - S A McNeil
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax, Nova Scotia
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C. B. Coelho I, Haguinet F, B. Colares JK, C. B. Coelho Z, M. C. Araújo F, Dias Schwarcz W, Duarte AC, Borges B, Minguet C, Guignard A. Dengue Infection in Children in Fortaleza, Brazil: A 3-Year School-Based Prospective Cohort Study. Am J Trop Med Hyg 2020; 103:100-111. [PMID: 32342838 PMCID: PMC7356456 DOI: 10.4269/ajtmh.19-0521] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 03/25/2020] [Indexed: 01/17/2023] Open
Abstract
Dengue is endemic in Brazil. The dengue surveillance system's reliance on passive reporting may underestimate disease incidence and cannot detect asymptomatic/pauci-symptomatic cases. In this 3-year prospective cohort study (NCT01391819) in 5- to 13-year-old children from nine schools in Fortaleza (N = 2,117), we assessed dengue virus (DENV) infection seroprevalence by IgG indirect ELISA at yearly visits and disease incidence through active and enhanced passive surveillance. Real-time quantitative polymerase chain reaction (RT-qPCR) and DENV IgM/IgG capture ELISA were used for diagnosis. We further characterized confirmed and probable cases with a plaque reduction neutralization test. At enrollment, 54.1% (95% CI: 46.6, 61.4) of children were DENV IgG positive. The annual incidence of laboratory-confirmed symptomatic dengue cases was 11.0 (95% CI: 7.3, 14.7), 18.1 (10.4, 25.7), and 10.2 (0.7, 19.7), and of laboratory-confirmed or probable dengue cases with neutralizing antibody profile evocative of dengue exposure was 13.2 (6.6, 19.9), 18.7 (5.3, 32.2), and 8.4 (2.4, 19.2) per 1,000 child-years in 2012, 2013, and 2014, respectively. By RT-qPCR, we identified 14 DENV-4 cases in 2012-2013 and seven DENV-1 cases in 2014. During the course of the study, 32.8% of dengue-naive children experienced a primary infection. Primary inapparent dengue infection was detected in 20.3% (95% CI: 13.6, 29.1) of dengue-naive children in 2012, 8.7% (6.9, 10.9) in 2013, and 5.1% (4.4, 6.0) in 2014. Our results confirmed the high dengue endemicity in Fortaleza, with active and enhanced passive surveillance detecting three to five times more cases than the National System of Disease Notification.
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Affiliation(s)
| | | | - Jeová Keny B. Colares
- Secretaria de Saúde do Estado do Ceará, Hospital São José de Doenças Infecciosas, Fortaleza, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Universidade de Fortaleza, Fortaleza, Brazil
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10
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Guignard A, Haguinet F, Wéry S, Kerdpanich P. Prevalence and Persistence of Maternal Dengue Neutralizing Antibodies in Infants From Central and Southern Thailand: A Retrospective Cohort Study. Asia Pac J Public Health 2020; 31:288-295. [PMID: 31307216 DOI: 10.1177/1010539519853396] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Understanding maternal dengue virus (DENV) neutralizing antibody kinetics in infants remains timely to develop a safe and effective childhood immunization. This retrospective study evaluated the prevalence and persistence of maternal antibody titers against DENV serotypes 1 to 4 in 139 Thai infants at 2, 6, and 7 months of age, using serum samples collected in a vaccination trial ( http://clinicaltrials.gov ; NCT00197275). Neutralizing antibodies against all 4 DENV serotypes were detected in 87.8% and 22.9% of infants at 2 and 7 months, respectively. At 2 months, DENV-4 neutralizing antibody geometric mean titers were notably lower (80) compared with DENV-1 to DENV-3 (277-471). Our results corroborate previous findings that DENV-1 to DENV-4 maternal antibodies persist at 7 months despite titers decrease from 2 months onwards. As persisting maternal antibodies may inhibit immune responses in DENV-vaccinated infants, a comprehensive understanding of DENV antibody kinetics is required in the perspective of vaccine development for infants.
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de Lusignan S, Correa A, Dos Santos G, Meyer N, Haguinet F, Webb R, McGee C, Byford R, Yonova I, Pathirannehelage S, Ferreira FM, Jones S. Enhanced Safety Surveillance of Influenza Vaccines in General Practice, Winter 2015-16: Feasibility Study. JMIR Public Health Surveill 2019; 5:e12016. [PMID: 31724955 PMCID: PMC6913774 DOI: 10.2196/12016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 08/23/2018] [Revised: 11/23/2018] [Accepted: 03/22/2019] [Indexed: 12/01/2022] Open
Abstract
Background The European Medicines Agency (EMA) requires vaccine manufacturers to conduct enhanced real-time surveillance of seasonal influenza vaccination. The EMA has specified a list of adverse events of interest to be monitored. The EMA sets out 3 different ways to conduct such surveillance: (1) active surveillance, (2) enhanced passive surveillance, or (3) electronic health record data mining (EHR-DM). English general practice (GP) is a suitable setting to implement enhanced passive surveillance and EHR-DM. Objective This study aimed to test the feasibility of conducting enhanced passive surveillance in GP using the yellow card scheme (adverse events of interest reporting cards) to determine if it has any advantages over EHR-DM alone. Methods A total of 9 GPs in England participated, of which 3 tested the feasibility of enhanced passive surveillance and the other 6 EHR-DM alone. The 3 that tested EPS provided patients with yellow (adverse events) cards for patients to report any adverse events. Data were extracted from all 9 GPs’ EHRs between weeks 35 and 49 (08/24/2015 to 12/06/2015), the main period of influenza vaccination. We conducted weekly analysis and end-of-study analyses. Results Our GPs were largely distributed across England with a registered population of 81,040. In the week 49 report, 15,863/81,040 people (19.57% of the registered practice population) were vaccinated. In the EPS practices, staff managed to hand out the cards to 61.25% (4150/6776) of the vaccinees, and of these cards, 1.98% (82/4150) were returned to the GP offices. Adverse events of interests were reported by 113 /7223 people (1.56%) in the enhanced passive surveillance practices, compared with 322/8640 people (3.73%) in the EHR-DM practices. Conclusions Overall, we demonstrated that GPs EHR-DM was an appropriate method of enhanced surveillance. However, the use of yellow cards, in enhanced passive surveillance practices, did not enhance the collection of adverse events of interests as demonstrated in this study. Their return rate was poor, data entry from them was not straightforward, and there were issues with data reconciliation. We concluded that customized cards prespecifying the EMA’s adverse events of interests, combined with EHR-DM, were needed to maximize data collection. International Registered Report Identifier (IRRID) RR2-10.1136/bmjopen-2016-015469
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Affiliation(s)
- Simon de Lusignan
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | - Ana Correa
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | | | | | | | - Rebecca Webb
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | - Christopher McGee
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom.,Royal College of General Practitioners, London, United Kingdom
| | - Rachel Byford
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | - Ivelina Yonova
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom.,Royal College of General Practitioners, London, United Kingdom
| | - Sameera Pathirannehelage
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | - Filipa Matos Ferreira
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom
| | - Simon Jones
- University of Surrey, Department of Clinical and Experimental Medicine, Guildford, United Kingdom.,NYU School of Medicine, Department of Population Health, New York, NY, United States
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Yanni EA, Ferreira G, Guennec M, El Hahi Y, El Ghachi A, Haguinet F, Espie E, Bianco V. Burden of herpes zoster in 16 selected immunocompromised populations in England: a cohort study in the Clinical Practice Research Datalink 2000-2012. BMJ Open 2018; 8:e020528. [PMID: 29880565 PMCID: PMC6009512 DOI: 10.1136/bmjopen-2017-020528] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES Herpes zoster (HZ) is caused by reactivation of varicella-zoster virus which remains latent in individuals after a varicella infection. It is expected that HZ will be more frequent in immunocompromised (IC) individuals than in immunocompetent (IC-free). This study assessed the incidence rate (IR) of HZ in individuals with a wide set of IC conditions and in IC-free individuals. SETTING A retrospective cohort study was conducted in England using data (January 2000 to March 2012) from the Clinical Practice Research Datalink with linkage to the Hospital Episodes Statistics. PARTICIPANTS A cohort of 621 588 individuals with 16 selected IC conditions and a gender/age-matched cohort of IC-free individuals were identified. The IC conditions included haematopoietic stem cell transplant (HSCT), solid organ transplant, malignancies, autoimmune diseases and users of immunosuppressive medications. OUTCOMES IR of HZ per 1000 person-years (PY) was estimated. Proportions of postherpetic neuralgia (PHN) and other HZ complications within 90 days of HZ onset were also estimated among patients with HZ. Risk factors for PHN in IC individuals with HZ were assessed by a multivariate regression model. RESULTS The overall IR of HZ in the IC cohort was 7.8/1000 PY (95% CI 7.7 to 7.9), increasing with age from 3.5/1000 PY (3.4-3.7) in individuals aged 18-49 years to 12.6/1000 PY (12.2-13.0) in individuals aged ≥80 years. This IR in the IC-free cohort was 6.2/1000 PY (6.1-6.3). The overall IR of HZ varied across IC conditions, ranging from 5.3 (5.1-5.5) in psoriasis to 41.7/1000 PY (35.7-48.4) in HSCT. The proportions of PHN and other HZ complications were 10.7% (10.2-11.1) and 2.9% (2.7-3.2) in the IC cohort, but 9.1% (8.7-9.5) and 2.3% (2.1-2.6) in the IC-free cohort, respectively. CONCLUSION IC population contributes to the public health burden of HZ in England. Vaccination might be the most preferable HZ preventive measure for the IC population.
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Affiliation(s)
| | - Germano Ferreira
- P-95 Epidemiology and Pharmacovigilance Services, Heverlee, Belgium
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13
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Andrew MK, Shinde V, Hatchette T, Ambrose A, Boivin G, Bowie W, Chit A, Dos Santos G, ElSherif M, Green K, Haguinet F, Halperin SA, Ibarguchi B, Johnstone J, Katz K, Langley JM, LeBlanc J, Loeb M, MacKinnon-Cameron D, McCarthy A, McElhaney J, McGeer A, Nichols MK, Powis J, Richardson D, Semret M, Stiver G, Trottier S, Valiquette L, Webster D, Ye L, McNeil SA. Influenza vaccine effectiveness against influenza-related hospitalization during a season with mixed outbreaks of four influenza viruses: a test-negative case-control study in adults in Canada. BMC Infect Dis 2017; 17:805. [PMID: 29284435 PMCID: PMC5747268 DOI: 10.1186/s12879-017-2905-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 12/11/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Serious Outcomes Surveillance (SOS) Network was established to monitor seasonal influenza complications among hospitalized Canadian adults and to assess the effectiveness of influenza vaccination against severe outcomes. Here we report age- and strain-specific vaccine effectiveness (VE) in preventing severe outcomes during a season characterized by mixed outbreaks of four different influenza strains. METHODS This prospective, multicentre, test-negative case-control study evaluated the VE of trivalent influenza vaccine (TIV) in the prevention of laboratory-confirmed influenza-hospitalization in adults aged ≥16 years (all adults) and adults aged 16-64 years (younger adults). The SOS Network identified hospitalized patients with diagnoses potentially attributable to influenza during the 2011/12 influenza season. Swabs collected at admission were tested by reverse transcriptase polymerase chain reaction (RT PCR) or viral culture to discriminate influenza cases (positive) from controls (negative). VE was calculated as 1-odds ratio (OR) of vaccination in cases versus controls × 100. RESULTS Overall, in all adults, the unadjusted and adjusted VEs of TIV against influenza-hospitalization were 41.8% (95% Confidence Interval [CI]: 26.0, 54.3), and 42.8% (95% CI: 23.8, 57.0), respectively. In younger adults (16-64 years), the unadjusted and adjusted VEs of TIV against influenza-hospitalization were 35.8% (95% CI: 4.5, 56.8) and 33.2% (95% CI: -6.7, 58.2), respectively. In the all adults group, adjusted VE against influenza A/H1N1 was 72.5% (95% CI: 30.5, 89.1), against A/H3N2 was 86.1% (95% CI: 40.1, 96.8), against B/Victoria was 40.5% (95% CI: -28.9, 72.6), and against B/Yamagata was 32.3% (95% CI: -8.3, 57.7). The adjusted estimate of early season VE (from November 1 to March 11) was 54.4% (95% CI: 29.7-70.4), which was higher than late season (from March 11 to May 25) VE estimate (VE: 29.7%, 95% CI: -5.3, 53.1). CONCLUSIONS These results suggest that TIV was highly effective against A viruses and moderately effective against B viruses during a mild season characterised by co-circulation of four influenza strains in Canada. Findings underscore the need to provide VE assessment by subtype/lineage as well as the timing of vaccination (early season vs late season) to accurately evaluate vaccine performance and thus guide public health decision-making. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT01517191. Registration was retrospective and the date of registration was January 17, 2012.
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Affiliation(s)
- Melissa K. Andrew
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Vivek Shinde
- GSK, King of Prussia, Current affiliation: Novavax Vaccines, Washington, DC, USA
| | - Todd Hatchette
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Ardith Ambrose
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Guy Boivin
- Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, RC-709, Québec, Québec G1V 4G2 Canada
| | - William Bowie
- University of British Columbia, 452D, Heather Pavilion East, VGH, 2733 Heather Street, Vancouver, British Columbia V5Z 3J5 Canada
| | - Ayman Chit
- Leslie Dan Faculty of Pharmacy, University of Toronto, Current affiliation: Sanofi Pasteur, Swiftwater, Pennsylvania USA
| | - Gael Dos Santos
- Business & Decision Life Sciences, Bruxelles, Belgium, on behalf of GSK (Wavre, Belgium), Current affiliation: GSK, Wavre, Belgium
| | - May ElSherif
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Karen Green
- Mount Sinai Hospital, 600 University Ave, Room 210, Toronto, Ontario M5G 1X5 Canada
| | | | - Scott A. Halperin
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Barbara Ibarguchi
- GSK, Mississauga, Ontario, Canada, Current affiliation: Bayer Inc, Mississauga, Ontario Canada
| | - Jennie Johnstone
- McMaster University, Michael G. DeGroote Centre for Learning, 1200 Main Street West, Room 3208, Hamilton, Ontario L8S 4K1 Canada
| | - Kevin Katz
- North York General Hospital, 4001 Leslie St, Toronto, Ontario M2K 1E1 Canada
| | - Joanne M. Langley
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Jason LeBlanc
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Mark Loeb
- McMaster University, Michael G. DeGroote Centre for Learning, 1200 Main Street West, Room 3208, Hamilton, Ontario L8S 4K1 Canada
| | - Donna MacKinnon-Cameron
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Anne McCarthy
- The Ottawa Hospital, Ottawa Hospital Civic Campus, 1053 Carling Ave, Ottawa, Ontario K1Y 4E9 Canada
| | - Janet McElhaney
- Health Sciences North Research Institute, 41 Ramsey Lake Rd, Sudbury, Ontario P3E 5J1 Canada
| | - Allison McGeer
- Mount Sinai Hospital, 600 University Ave, Room 210, Toronto, Ontario M5G 1X5 Canada
| | - Michaela K. Nichols
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Jeff Powis
- Michael Garron Hospital, 825 Coxwell Ave, Toronto, Ontario M4C 3E7 Canada
| | - David Richardson
- William Osler Health System, Department of Infectious Diseases and Medical Microbiology, 2100 Bovaird Dr East, Brampton, Ontario L6R 3J7 Canada
| | - Makeda Semret
- McGill University, McGill University Health Centre, Glen Site, 1001 Decarie Blvd, Montreal, Quebec H4A 3J1 Canada
| | - Grant Stiver
- University of British Columbia, 452D, Heather Pavilion East, VGH, 2733 Heather Street, Vancouver, British Columbia V5Z 3J5 Canada
| | - Sylvie Trottier
- Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, RC-709, Québec, Québec G1V 4G2 Canada
| | - Louis Valiquette
- Université de Sherbrooke, 3001 12th Ave North, Sherbrooke, Quebec J1H 5N4 Canada
| | - Duncan Webster
- Saint John Regional Hospital, Dalhousie University, 400 University Ave, Saint John, New Brunswick E2L 4L2 Canada
| | - Lingyun Ye
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - Shelly A. McNeil
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
| | - on behalf of the Public Health Agency of Canada/Canadian Institutes of Health Research Influenza Research Network (PCIRN) Serious Outcomes Surveillance Network and the Toronto Invasive Bacterial Diseases Network (TIBDN)
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, 5850/5980 University Ave, Halifax, Nova Scotia B3K 6R8 Canada
- GSK, King of Prussia, Current affiliation: Novavax Vaccines, Washington, DC, USA
- Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, RC-709, Québec, Québec G1V 4G2 Canada
- University of British Columbia, 452D, Heather Pavilion East, VGH, 2733 Heather Street, Vancouver, British Columbia V5Z 3J5 Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Current affiliation: Sanofi Pasteur, Swiftwater, Pennsylvania USA
- Business & Decision Life Sciences, Bruxelles, Belgium, on behalf of GSK (Wavre, Belgium), Current affiliation: GSK, Wavre, Belgium
- Mount Sinai Hospital, 600 University Ave, Room 210, Toronto, Ontario M5G 1X5 Canada
- GSK, Wavre, Belgium
- GSK, Mississauga, Ontario, Canada, Current affiliation: Bayer Inc, Mississauga, Ontario Canada
- McMaster University, Michael G. DeGroote Centre for Learning, 1200 Main Street West, Room 3208, Hamilton, Ontario L8S 4K1 Canada
- North York General Hospital, 4001 Leslie St, Toronto, Ontario M2K 1E1 Canada
- The Ottawa Hospital, Ottawa Hospital Civic Campus, 1053 Carling Ave, Ottawa, Ontario K1Y 4E9 Canada
- Health Sciences North Research Institute, 41 Ramsey Lake Rd, Sudbury, Ontario P3E 5J1 Canada
- Michael Garron Hospital, 825 Coxwell Ave, Toronto, Ontario M4C 3E7 Canada
- William Osler Health System, Department of Infectious Diseases and Medical Microbiology, 2100 Bovaird Dr East, Brampton, Ontario L6R 3J7 Canada
- McGill University, McGill University Health Centre, Glen Site, 1001 Decarie Blvd, Montreal, Quebec H4A 3J1 Canada
- Université de Sherbrooke, 3001 12th Ave North, Sherbrooke, Quebec J1H 5N4 Canada
- Saint John Regional Hospital, Dalhousie University, 400 University Ave, Saint John, New Brunswick E2L 4L2 Canada
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Andrew MK, Shinde V, Ye L, Hatchette T, Haguinet F, Dos Santos G, McElhaney JE, Ambrose A, Boivin G, Bowie W, Chit A, ElSherif M, Green K, Halperin S, Ibarguchi B, Johnstone J, Katz K, Langley J, Leblanc J, Loeb M, MacKinnon-Cameron D, McCarthy A, McGeer A, Powis J, Richardson D, Semret M, Stiver G, Trottier S, Valiquette L, Webster D, McNeil SA. The Importance of Frailty in the Assessment of Influenza Vaccine Effectiveness Against Influenza-Related Hospitalization in Elderly People. J Infect Dis 2017; 216:405-414. [PMID: 28931244 PMCID: PMC5853583 DOI: 10.1093/infdis/jix282] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 06/09/2017] [Indexed: 11/14/2022] Open
Abstract
Background Influenza is an important cause of morbidity and mortality among older adults. Even so, effectiveness of influenza vaccine for older adults has been reported to be lower than for younger adults, and the impact of frailty on vaccine effectiveness (VE) and outcomes is uncertain. We aimed to study VE against influenza hospitalization in older adults, focusing on the impact of frailty. Methods We report VE of trivalent influenza vaccine (TIV) in people ≥65 years of age hospitalized during the 2011-2012 influenza season using a multicenter, prospective, test-negative case-control design. A validated frailty index (FI) was used to measure frailty. Results Three hundred twenty cases and 564 controls (mean age, 80.6 and 78.7 years, respectively) were enrolled. Cases had higher baseline frailty than controls (P = .006). In the fully adjusted model, VE against influenza hospitalization was 58.0% (95% confidence interval [CI], 34.2%-73.2%). The contribution of frailty was important; adjusting for frailty alone yielded a VE estimate of 58.7% (95% CI, 36.2%-73.2%). VE was 77.6% among nonfrail older adults and declined as frailty increased. Conclusions Despite commonly held views that VE is poor in older adults, we found that TIV provided good protection against influenza hospitalization in older adults who were not frail, though VE diminished as frailty increased. Clinical Trials Registration NCT01517191.
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Affiliation(s)
- Melissa K Andrew
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | - Vivek Shinde
- GlaxoSmithKline (GSK), King of Prussia, Pennsylvania; and
| | - Lingyun Ye
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | - Todd Hatchette
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | | | | | | | - Ardith Ambrose
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | - Guy Boivin
- Centre Hospitalier Universitaire de Québec, Quebec City, and
| | | | - Ayman Chit
- Sanofi Pasteur, Swiftwater, Pennsylvania
- Leslie Dan Faculty of Pharmacy, University of Toronto
| | - May ElSherif
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | | | - Scott Halperin
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | | | | | | | - Joanne Langley
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | - Jason Leblanc
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | | | - Donna MacKinnon-Cameron
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
| | | | | | | | | | | | - Grant Stiver
- University of British Columbia, Vancouver, Canada
| | - Sylvie Trottier
- Centre Hospitalier Universitaire de Québec, Quebec City, and
| | | | | | - Shelly A McNeil
- Canadian Center for Vaccinology, IWK Health Centre and Nova Scotia Health Authority, Dalhousie University, Halifax
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15
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de Lusignan S, Dos Santos G, Correa A, Haguinet F, Yonova I, Lair F, Byford R, Ferreira F, Stuttard K, Chan T. Post-authorisation passive enhanced safety surveillance of seasonal influenza vaccines: protocol of a pilot study in England. BMJ Open 2017; 7:e015469. [PMID: 28515198 PMCID: PMC5541341 DOI: 10.1136/bmjopen-2016-015469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
AIM To pilot enhanced safety surveillance of seasonal influenza vaccine meeting the European Medicines Agency (EMA) requirement to rapidly detect a significant increase in the frequency or severity of adverse events of interest (AEIs), which may indicate risk from the new season's vaccine. STUDY DESIGN A prospective passive enhanced safety surveillance combining data collection from adverse drug reaction (ADR) cards with automated collection of pseudonymised routinely collected electronic health record (EHR) data. This study builds on a feasibility study carried out at the start of the 2015/2016 influenza season. We will report influenza vaccine exposure and any AEIs reported via ADR card or recorded directly into the EHR, from the commencement of influenza vaccination and ends as specified by EMA (30 November 2016). SETTING Ten volunteer English general practices, primarily using the GSK influenza vaccines. They had selected this vaccine in advance of the study. PARTICIPANTS People who receive a seasonal influenza vaccine, in each age group defined in EMA interim guidance: 6 months to 5 years, 6-12 years, 13-17 years, 18-65 years and >65 years. OUTCOME MEASURES The primary outcome measure is the rate of AEIs occurring within 7 days postvaccination, using passive surveillance of general practitioner (GP) EHR systems enhanced by a card-based ADR reporting system. Extracted data will be presented overall by brand (Fluarix Tetra vs others), by age strata and risk groups. The secondary outcome measure is the vaccine uptake among the subjects registered in the enrolled general practices. ETHICS AND DISSEMINATION Ethical approval was granted by the Proportionate Review Sub-committee of the North East-Newcastle & North Tyneside 2 on 5 August 2016. The study received approval from the Health Research Authority on 1 September 2016. We will produce an interim analysis within 8 weeks, and an end-of-study report, which will be submitted to peer-reviewed journals.
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Affiliation(s)
- Simon de Lusignan
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
| | | | - Ana Correa
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
| | | | - Ivelina Yonova
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
| | | | - Rachel Byford
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
| | - Filipa Ferreira
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
| | | | - Tom Chan
- Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
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16
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Matias G, Taylor R, Haguinet F, Schuck-Paim C, Lustig R, Shinde V. Estimates of hospitalization attributable to influenza and RSV in the US during 1997-2009, by age and risk status. BMC Public Health 2017; 17:271. [PMID: 28320361 PMCID: PMC5359836 DOI: 10.1186/s12889-017-4177-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 03/07/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Estimates of influenza and respiratory syncytial virus (RSV) burden must be periodically updated to inform public health strategies. We estimated seasonal influenza- and RSV-attributable hospitalizations in the US from 1997 to 2009 according to age and risk status (NCT01599390). METHODS Multiple linear regression modelling was used to attribute hospitalizations to influenza or RSV using virological surveillance and hospitalization data. Hospitalization data were obtained from the US Nationwide Inpatient Sample and virology data were obtained from FluView (Centers for Disease Control and Prevention). Outcomes included any mention of ICD-coded respiratory disease and cardiorespiratory disease diagnoses. We also explored a broader definition of respiratory disease that included mention of relevant respiratory sign/symptoms and viral infection ("respiratory broad"). RESULTS Applying the respiratory broad outcome, our model attributed ~300,000 and ~200,000 hospitalizations to influenza and RSV, respectively. Influenza A/H3N2 was the predominant cause of influenza-related hospitalizations in most seasons, except in three seasons when influenza B was dominant; likewise, A/H3N2 caused most influenza-related hospitalizations in all age segments, except in children <18 years where the relative contribution of A/H3N2 and B was similar. Most influenza A- and B-related hospitalizations occurred in seniors while approximately one half and one third of all RSV-related events occurred in children 0-4 years and seniors 65+ years, respectively. High-risk status was associated with higher risk of both influenza- and RSV-attributable hospitalizations in adults, but not in children. CONCLUSIONS Our study assessed the burden of influenza and RSV, information that is important for both cost effectiveness studies and for prioritization of the development of antivirals and vaccines. For seniors, we found that the burdens of influenza and RSV were both substantial. Among children <18 years, about half of all influenza hospitalizations were due to influenza B, most occurring in children without noted risk conditions. RSV hospitalizations among children were confined to those 0-4 years. Our study also demonstrated the importance of the outcome used to estimate hospitalization burden. Our findings highlight the burden of influenza among children regardless of risk status and underscore the prevalence of RSV infections among both young children and older adults.
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Affiliation(s)
| | | | | | | | | | - Vivek Shinde
- GSK, King of Prussia, USA.,Present Address: Novavax Vaccines, Washington, DC, USA
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17
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Kim WJ, Lee JS, Lee CK, Cheong HJ, Kim M, Monegal JS, Carneiro R, Kyaw MH, Haguinet F, Ray R, Matias G. Clinical Features of Influenza and Acute Respiratory Illness in Older Adults at Least 50 Years of Age in an Outpatient Setting in the Republic of Korea: a Prospective, Observational, Cohort Study. J Korean Med Sci 2017; 32:407-414. [PMID: 28145642 PMCID: PMC5290098 DOI: 10.3346/jkms.2017.32.3.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 11/20/2016] [Indexed: 11/20/2022] Open
Abstract
Two prospective, multi-centre, observational studies (GlaxoSmithKline [GSK] identifier No. 110938 and 112519) were performed over 2 influenza seasons (2007-2008 and 2008-2009) in the Republic of Korea (ROK) with the aim to evaluate the burden of laboratory-confirmed influenza (LCI) in patients ≥ 50 years of age seeking medical attention for acute respiratory illness (ARI). The median participant age was 58 years in the 2007-2008 season and 60 years in the 2008-2009 season. LCI was observed in 101/346 (29.2%) of ARI patients in the 2007-2008 season and in 166/443 (37.5%) of ARI patients in the 2008-2009 season. Compared to patients with non-influenza ARI, those with LCI had higher rates of decreased daily activities (60.4% vs. 32.9% in 2007-2008 and 46.4% vs. 25.8% in 2008-2009), work absenteeism (51.1% vs. 25.6% and 14.4% vs. 7.7%), and longer duration of illness. These results indicated that influenza is an important cause of ARI in adults aged 50 and older causing more severe illness than non-influenza related ARI.
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Affiliation(s)
- Woo Joo Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea.
| | - Jin Soo Lee
- Division of Infectious Diseases, Department of Internal Medicine, Inha University Inha Hospital, Incheon, Korea
| | - Chang Kyu Lee
- Department of Laboratory Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Hee Jin Cheong
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Mijeong Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
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18
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Matias G, Haguinet F, Lustig RL, Edelman L, Chowell G, Taylor RJ. Model estimates of the burden of outpatient visits attributable to influenza in the United States. BMC Infect Dis 2016; 16:641. [PMID: 27821091 PMCID: PMC5100308 DOI: 10.1186/s12879-016-1939-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 10/18/2016] [Indexed: 12/31/2022] Open
Abstract
Background Although many studies have modelled the national burdens of hospitalizations and deaths due to influenza, few studies have considered the outpatient burden. To fill this gap for the United States (US), we applied traditional statistical modelling approaches to time series derived from large medical claims databases held in the private sector. Methods We accessed ICD-9-coded office visit data extracted from Truven Health Analytics’ MarketScan Commercial database covering about one third of the US population <65 years during 2001–2009, and Medicare Supplemental data covering about one fifth of US seniors 65+ during 2006–2009. We extracted weekly time series of visits due to respiratory diagnoses, otitis media (OM), and urinary tract infections (UTI), a “negative control”. We used multiple linear regression modelling to estimate age-specific influenza-related excess in office visits. Results In the <65 year age group, in the 8 pre-pandemic seasons studied and for the broadest defined respiratory outcome, the model attributed an average of ~14.5 M (Standard deviation [SD] across seasons 3.9 million) office visits to influenza (rate of 5,581/100,000 population). Of these, ~80 % of visits occurred in the 5–17 and 18–49 age group. In school children aged 5–17 year olds and adult 18–64 year age groups the majority of visits were due to influenza B, while A/H3N2 explained most visits in children <5 year olds. The model further attributed ~2.2 M OM visits (SD across seasons 790,000) annually to influenza, of which 86 % of these occurred in children <18 years; this indicates that 6.4 % of all infants <2 years and 4.9 % of all toddlers aged 2–4 years in the US have an influenza-attributable outpatient visit with an OM diagnosis. In seniors 65 years and older, our model attributed ~0.7 M (SD across seasons 351,000) respiratory visits to influenza (rate of 1,887/100,000 population). The model identified no significant excess UTI (negative control) visits in most seasons. Conclusions This is to our knowledge a first study of the outpatient burden of influenza in the US in a large database. The model estimated that 10 % of all children <18 years and 4 % of the entire population <65 years seek outpatient care for respiratory illness attributable to influenza annually. Trial registration ClinicalTrial.gov, NCT02019732.
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Affiliation(s)
- Gonçalo Matias
- GSK Vaccines, Avenue Fleming 20, Parc de la Noire Epine, Wavre, Belgium.
| | - François Haguinet
- GSK Vaccines, Avenue Fleming 20, Parc de la Noire Epine, Wavre, Belgium
| | - Roger L Lustig
- Sage Analytica, 4915 St. Elmo Ave., Suite 205, Bethesda, MD, 20814, USA
| | - Laurel Edelman
- Symphony Health Solutions, Suite 100, 550 Blair Mill Road, Horsham, PA, 19044, USA.,Present address: Independent Outcomes and Healthcare Researcher, 1591 White Chimney Road, West Chester, PA, 19380, USA
| | - Gerardo Chowell
- School of Public Health, Georgia State University, Atlanta, GA, USA
| | - Robert J Taylor
- Sage Analytica, 4915 St. Elmo Ave., Suite 205, Bethesda, MD, 20814, USA
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Matias G, Taylor RJ, Haguinet F, Schuck-Paim C, Lustig RL, Fleming DM. Modelling estimates of age-specific influenza-related hospitalisation and mortality in the United Kingdom. BMC Public Health 2016; 16:481. [PMID: 27278794 PMCID: PMC4898386 DOI: 10.1186/s12889-016-3128-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 03/27/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Influenza is rarely confirmed with laboratory testing and accurate assessment of the overall burden of influenza is difficult. We used statistical modelling methods to generate updated, granular estimates of the number/rate of influenza-attributable hospitalisations and deaths in the United Kingdom. Such data are needed on a continuing basis to inform on cost-benefit analyses of treatment interventions, including vaccination. METHODS Weekly age specific data on hospital admissions (1997-2009) and on deaths (1997-2009) were obtained from national databases. Virology reports (1996-2009) of influenza and respiratory syncytial virus detections were provided by Public Health England. We used an expanded set of ICD-codes to estimate the burden of illness attributable to influenza which we refer to as 'respiratory disease broadly defined'. These codes were chosen to optimise the balance between sensitivity and specificity. A multiple linear regression model controlled for respiratory syncytial virus circulation, with stratification by age and the presence of comorbid risk status (conditions associated with severe influenza outcomes). RESULTS In the United Kingdom there were 28,516 hospitalisations and 7163 deaths estimated to be attributable to influenza respiratory disease in a mean season, with marked variability between seasons. The highest incidence rates of influenza-attributable hospitalisations and deaths were observed in adults aged 75+ years (252/100,000 and 131/100,000 population, respectively). Influenza B hospitalisations were highest among 5-17 year olds (12/100,000 population). Of all estimated influenza respiratory deaths in 75+ year olds, 50 % occurred out of hospital, and 25 % in 50-64 year olds. Rates of hospitalisations and death due to influenza-attributable respiratory disease were increased in adults identified as at-risk. CONCLUSIONS Our study points to a substantial but highly variable seasonal influenza burden in all age groups, particularly affecting 75+ year olds. Effective influenza prevention or early intervention with anti-viral treatment in this age group may substantially impact the disease burden and associated healthcare costs. The high burden of influenza B hospitalisation among 5-17 year olds supports current United Kingdom vaccine policy to extend quadrivalent seasonal influenza vaccination to this age group. TRIAL REGISTRATION ClinicalTrial.gov, NCT01520935.
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Affiliation(s)
- Gonçalo Matias
- GSK Vaccines, Avenue Fleming 20, Parc de la Noire Epine, Wavre, Belgium.
| | - Robert J Taylor
- Sage Analytica, 4915 St. Elmo Avenue, Suite 205, Bethesda, MD, 20814, USA
| | - François Haguinet
- GSK Vaccines, Avenue Fleming 20, Parc de la Noire Epine, Wavre, Belgium
| | | | - Roger L Lustig
- Sage Analytica, 4915 St. Elmo Avenue, Suite 205, Bethesda, MD, 20814, USA
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Taylor S, Taylor RJ, Lustig RL, Schuck-Paim C, Haguinet F, Webb DJ, Logie J, Matias G, Fleming DM. Modelling estimates of the burden of respiratory syncytial virus infection in children in the UK. BMJ Open 2016; 6:e009337. [PMID: 27256085 PMCID: PMC4893852 DOI: 10.1136/bmjopen-2015-009337] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The burden of respiratory syncytial virus (RSV) illness is not well characterised in primary care. We estimated the burden of disease attributable to RSV in children in the UK between 1995 and 2009. DESIGN Time-series regression modelling. SETTING A multiple linear regression model based on weekly viral surveillance (RSV and influenza, Public Health England), and controlled for non-specific seasonal drivers of disease, estimated the proportion of general practitioner (GP) episodes of care (counted as first visit in a series within 28 days; Clinical Practice Research Datalink, CPRD), hospitalisations (Hospital Episode Statistics, HES) and deaths (Office of National Statistics, ONS) attributable to RSV each season. PARTICIPANTS Children 0-17 years registered with a GP in CPRD, or with a respiratory disease outcome in the HES or ONS databases. PRIMARY OUTCOME MEASURES RSV-attributable burden of GP episodes, hospitalisations and deaths due to respiratory disease by age. RSV-attributable burden associated with selected antibiotic prescriptions. RESULTS RSV-attributable respiratory disease in the UK resulted in an estimated 450 158 GP episodes, 29 160 hospitalisations and 83 deaths per average season in children and adolescents, with the highest proportions in children <6 months of age (14 441/100 000 population, 4184/100 000 and 6/100 000, respectively). In an average season, there were an estimated 125 478 GP episodes for otitis media and 416 133 prescriptions for antibiotics attributable to RSV. More GP episodes, hospitalisations and deaths from respiratory disease were attributable to RSV than to influenza in children under 5 years. CONCLUSIONS The burden of RSV in children in the UK exceeds that of influenza. RSV in children and adolescents contributes substantially to GP office visits for a diverse range of illnesses, and was associated with an average 416 133 prescribed antibiotic courses per season. Effective antiviral treatments and preventive vaccines are urgently needed for the management of RSV infection in children. TRIAL REGISTRATION NUMBER NCT01706302.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Douglas M Fleming
- Faculty of Health and Medical Sciences University of Surrey, Department of Clinical and Experimental Medicine, University of Surrey, Guildford, UK
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Cohet C, Haguinet F, Dos Santos G, Webb D, Logie J, LC Ferreira G, Rosillon D, Shinde V. Effect of the adjuvanted (AS03) A/H1N1 2009 pandemic influenza vaccine on the risk of rejection in solid organ transplant recipients in England: a self-controlled case series. BMJ Open 2016; 6:e009264. [PMID: 26823177 PMCID: PMC4735133 DOI: 10.1136/bmjopen-2015-009264] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE To assess the risk of solid organ transplant (SOT) rejection after vaccination with the adjuvanted (AS03) A/H1N1 2009 pandemic influenza vaccine Pandemrix. DESIGN Self-controlled case series (SCCS) in the UK Clinical Practice Research Datalink (CPRD) and its linked component of the Hospital Episodes Statistics (HES) inpatient database. Analyses were conducted using the SCCS method for censored, perturbed or curtailed post-event exposure. PARTICIPANTS Of the 184 transplant recipients having experienced at least one SOT rejection (liver, kidney, lung, heart or pancreas) during the study period from 1 October 2009 to 31 October 2010, 91 participants were included in the main analysis, of which 71 had been exposed to Pandemrix. MAIN OUTCOME MEASURES Occurrence of SOT rejection during risk (30 and 60 days after any Pandemrix dose) and control periods. Covariates in the CPRD included time since transplantation, seasonal influenza vaccination, bacterial and viral infections, previous SOT rejections and malignancies. RESULTS The relative incidence (RI) of rejection of any one of the five transplanted organs, adjusted for time since transplantation, was 1.05 (95% CI 0.52 to 2.14) and 0.80 (95% CI 0.42 to 1.50) within 30 and 60 days after vaccination, respectively. Similar estimates were observed for rejection of a kidney only, the most commonly transplanted organ (RI within 30 days after vaccination: 0.85 (95% CI 0.38 to 1.90)). Across various models and sensitivity analyses, RI estimates remained stable and within a consistent range around 1.0. CONCLUSIONS These results suggest a reassuring safety profile for Pandemrix with regard to the risk of rejection in SOT recipients in England and contribute to inform the benefit-risk of AS03-adjuvanted pandemic influenza vaccines in transplanted patients in the event of future pandemics. TRIAL REGISTRATION NUMBER NCT01715792.
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Affiliation(s)
| | | | - Gaël Dos Santos
- Business & Decision Life Sciences, Brussels, Belgium (on behalf of GSK Vaccines)
| | - Dave Webb
- Department of R&D, GSK, Uxbridge, Middlesex, UK
| | - John Logie
- Department of R&D, GSK, Uxbridge, Middlesex, UK
| | | | | | - Vivek Shinde
- Global Epidemiology, GSK Vaccines, Wavre, Belgium
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Fleming DM, Taylor RJ, Lustig RL, Schuck-Paim C, Haguinet F, Webb DJ, Logie J, Matias G, Taylor S. Modelling estimates of the burden of Respiratory Syncytial virus infection in adults and the elderly in the United Kingdom. BMC Infect Dis 2015; 15:443. [PMID: 26497750 PMCID: PMC4618996 DOI: 10.1186/s12879-015-1218-z] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 10/14/2015] [Indexed: 12/12/2022] Open
Abstract
Background Growing evidence suggests respiratory syncytial virus (RSV) is an important cause of respiratory disease in adults. However, the adult burden remains largely uncharacterized as most RSV studies focus on children, and population-based studies with laboratory-confirmation of infection are difficult to implement. Indirect modelling methods, long used for influenza, can further our understanding of RSV burden by circumventing some limitations of traditional surveillance studies that rely on direct linkage of individual-level exposure and outcome data. Methods Multiple linear time-series regression was used to estimate RSV burden in the United Kingdom (UK) between 1995 and 2009 among the total population and adults in terms of general practice (GP) episodes (counted as first consultation ≥28 days following any previous consultation for same diagnosis/diagnostic group), hospitalisations, and deaths for respiratory disease, using data from Public Health England weekly influenza/RSV surveillance, Clinical Practice Research Datalink, Hospital Episode Statistics, and Office of National Statistics. The main outcome considered all ICD-listed respiratory diseases and, for GP episodes, related symptoms. Estimates were adjusted for non-specific seasonal drivers of disease using secular cyclical terms and stratified by age and risk group (according to chronic conditions indicating severe influenza risk as per UK recommendations for influenza vaccination). Trial registration NCT01706302. Registered 11 October 2012. Results Among adults aged 18+ years an estimated 487,247 GP episodes, 17,799 hospitalisations, and 8,482 deaths were attributable to RSV per average season. Of these, 175,070 GP episodes (36 %), 14,039 hospitalisations (79 %) and 7,915 deaths (93 %) were in persons aged 65+ years. High- versus low-risk elderly were two-fold more likely to have a RSV-related GP episode or death and four-fold more likely be hospitalised for RSV. In most seasons since 2001, more GP episodes, hospitalisations and deaths were attributable to RSV in adults than to influenza. Conclusion RSV is associated with a substantial disease burden in adults comparable to influenza, with most of the hospitalisation and mortality burden in the elderly. Treatment options and measures to prevent RSV could have a major impact on the burden of RSV respiratory disease in adults, especially the elderly. Electronic supplementary material The online version of this article (doi:10.1186/s12879-015-1218-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Douglas M Fleming
- Independent Consultant, 9 Dowles Close, Birmingham, B29 4LE, United Kingdom.
| | - Robert J Taylor
- Sage Analytica, 4550 Montgomery Ave., Suite 4915 St. Elmo Ave, Ste. 205, Bethesda, MD 20814, USA.
| | - Roger L Lustig
- Sage Analytica, 4550 Montgomery Ave., Suite 4915 St. Elmo Ave, Ste. 205, Bethesda, MD 20814, USA.
| | - Cynthia Schuck-Paim
- Sage Analytica, 4550 Montgomery Ave., Suite 4915 St. Elmo Ave, Ste. 205, Bethesda, MD 20814, USA.
| | - François Haguinet
- GSK Vaccines, Av Fleming 20, Parc de la Noire Epine, 1300, Wavre, Belgium.
| | - David J Webb
- GSK Pharmaceuticals, Stockley Park West, 1-3 Ironbridge Road, Heathrow, Uxbridge, Middlesex, UB11 1B S, United Kingdom.
| | - John Logie
- GSK Pharmaceuticals, Stockley Park West, 1-3 Ironbridge Road, Heathrow, Uxbridge, Middlesex, UB11 1B S, United Kingdom.
| | - Gonçalo Matias
- GSK Vaccines, Av Fleming 20, Parc de la Noire Epine, 1300, Wavre, Belgium.
| | - Sylvia Taylor
- GSK Vaccines, Av Fleming 20, Parc de la Noire Epine, 1300, Wavre, Belgium.
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Yenikomshian MA, Guignard AP, Haguinet F, LaCasce AS, Skarin AT, Trahey A, Karner P, Duh MS. The epidemiology of herpes zoster and its complications in Medicare cancer patients. BMC Infect Dis 2015; 15:106. [PMID: 25888128 PMCID: PMC4352235 DOI: 10.1186/s12879-015-0810-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 02/06/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Literature on the epidemiology of herpes zoster (HZ) in cancer patients is sparse and does not include the elderly. The objectives of this study were to determine the incidence of HZ and related complications in elderly cancer patients and assess risk factors associated with HZ. METHODS Patients ≥65 years diagnosed with cancer in 1991-2007 were identified from the Surveillance, Epidemiology, and End Results (SEER) cancer registry-Medicare linked database in this retrospective, longitudinal, open cohort study. The observation period spanned from first cancer diagnosis until the end of data availability. A random group of non-cancer Medicare patients served as the comparison group. Cases of HZ and related complications were ascertained from medical claims. Incidence rates (IR) and adjusted IR ratios were reported. RESULTS The study population consisted of 82,832 hematologic (HEM) and 944,777 solid cancer patients (SOLID). During follow-up, 9.2% of HEM and 6.3% of SOLID were diagnosed with HZ. The IR of HZ was significantly higher in HEM than SOLID (31.0 vs. 14.9 per 1,000 patient-years, p <0.01). The adjusted IR ratio vs. non-cancer elderly patients was 2.4 in HEM and 1.2 in SOLID. The proportion of patients with complications was higher in HEM than SOLID (17.8% vs. 15.8%, p <0.01). Age, gender, race, certain cancer therapies, and immunosuppression were HZ risk factors. CONCLUSIONS Elderly cancer patients run a 1.2-2.4 times higher risk of developing HZ than those without cancer. The rates of HZ and HZ-related complications are significantly higher for hematologic than solid cancer patients.
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Affiliation(s)
| | | | | | | | | | - Alex Trahey
- Analysis Group, Inc., 111 Huntington Ave., Tenth Floor, Boston, MA, 02199, USA.
| | - Paul Karner
- Analysis Group, Inc., 111 Huntington Ave., Tenth Floor, Boston, MA, 02199, USA.
| | - Mei Sheng Duh
- Analysis Group, Inc., 111 Huntington Ave., Tenth Floor, Boston, MA, 02199, USA.
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McNeil SA, Andrew MK, Ye L, Haguinet F, Hatchette TF, ElSherif M, LeBlanc J, Ambrose A, McGeer A, McElhaney JE, Loeb M, MacKinnon-Cameron D, Sharma R, Dos Santos G, Shinde V. Interim estimates of 2014/15 influenza vaccine effectiveness in preventing laboratory-confirmed influenza-related hospitalisation from the Serious Outcomes Surveillance Network of the Canadian Immunization Research Network, January 2015. Euro Surveill 2015; 20:21024. [DOI: 10.2807/1560-7917.es2015.20.5.21024] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
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Affiliation(s)
- S A McNeil
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - M K Andrew
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - L Ye
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - F Haguinet
- GlaxoSmithKline Vaccines, Wavre, Belgium
| | - T F Hatchette
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - M ElSherif
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - J LeBlanc
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - A Ambrose
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - A McGeer
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | - J E McElhaney
- Advanced Medical Research Institute of Canada, Sudbury, Ontario, Canada
| | - M Loeb
- McMaster University, Hamilton, Ontario, Canada
| | - D MacKinnon-Cameron
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - R Sharma
- GlaxoSmithKline Vaccines, Mississauga, Ontario, Canada
| | - G Dos Santos
- Business & Decision Life Sciences (on behalf of GlaxoSmithKline Vaccines), Brussels, Belgium
| | - V Shinde
- GlaxoSmithKline Vaccines, King of Prussia, Pennsylvania, United States
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Matias G, Taylor R, Haguinet F, Schuck-Paim C, Lustig R, Shinde V. Estimates of mortality attributable to influenza and RSV in the United States during 1997-2009 by influenza type or subtype, age, cause of death, and risk status. Influenza Other Respir Viruses 2014; 8:507-15. [PMID: 24975705 PMCID: PMC4181813 DOI: 10.1111/irv.12258] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2014] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Influenza and respiratory syncytial virus (RSV) cause substantial mortality from respiratory and other causes in the USA, especially among people aged 65 and older. OBJECTIVES We estimated the influenza-attributable mortality and RSV-attributable mortality in the USA, stratified by age and risk status, using outcome definitions with different sensitivity and specificity. METHODS Influenza- and RSV-associated mortality was assessed from October 1997-March 2009 using multiple linear regression modeling on data obtained from designated government repositories. RESULTS The main outcomes and measures included mortality outcome definitions-pneumonia and influenza, respiratory broad, and cardiorespiratory disease. A seasonal average of 10,682 (2287-16,363), 19,100 (4862-29,245), and 28,169 (6797-42,316) deaths was attributed to influenza for pneumonia and influenza, respiratory broad, and cardiorespiratory outcome definitions, respectively. Corresponding values for RSV were 6211 (4584-8169), 11,300 (8546-14,244), and 17,199 (13,384-21,891), respectively. A/H3N2 accounted for seasonal average of 71% influenza-attributable deaths; influenza B accounted for most (51-95%) deaths during four seasons. Approximately 70% influenza-attributable deaths occurred in individuals ≥75 years, with increasing mortality for influenza A/H3N2 and B, but not A/H1N1. In children aged 0-4 years, an average of 97 deaths was attributed to influenza (A/H3N2 = 49, B = 33, A/H1N1 = 15) and 165 to respiratory broad outcome definition (RSV). Influenza-attributable mortality was 2.94-fold higher in high-risk individuals. CONCLUSIONS Influenza-attributable mortality was highest in older and high-risk individuals and mortality in children was higher than reported in passive Centers for Disease Control and Prevention surveillance. Influenza B-attributable mortality was higher than A in four of 12 seasons. Our estimates represent an updated assessment of influenza-attributable mortality in the USA.
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McNeil SA, Shinde V, Andrew M, Hatchette TF, LeBlanc J, Ambrose A, Boivin G, Bowie WR, Diaz-Mitoma F, ElSherif M, Green K, Haguinet F, Halperin S, Ibarguchi B, Katz K, Langley JM, Lagacé-Wiens P, Light B, Loeb M, McElhaney JE, MacKinnon-Cameron D, McCarthy AE, Poirier M, Powis J, Richardson D, Semret M, Smith S, Smyth D, Stiver G, Trottier S, Valiquette L, Webster D, Ye L, McGeer A. Interim estimates of 2013/14 influenza clinical severity and vaccine effectiveness in the prevention of laboratory-confirmed influenza-related hospitalisation, Canada, February 2014. Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.9.20729] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
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Affiliation(s)
- S A McNeil
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - V Shinde
- GlaxoSmithKline Biologicals, Wavre, Belgium
| | - M Andrew
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - T F Hatchette
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - J LeBlanc
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - A Ambrose
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - W R Bowie
- University of British Columbia, Vancouver, British Columbia, Canada
| | - F Diaz-Mitoma
- Advanced Medical Research Institute of Canada, Sudbury, Ontario, Canada
| | - M ElSherif
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - K Green
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | - F Haguinet
- GlaxoSmithKline Biologicals, Wavre, Belgium
| | - S Halperin
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - B Ibarguchi
- GlaxoSmithKline, Mississauga, Ontario, Canada
| | - K Katz
- North York General Hospital, Toronto, Ontario, Canada
| | - JM Langley
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - B Light
- St. Boniface Hospital, Winnipeg, Manitoba, Canada
| | - M Loeb
- McMaster University, Hamilton, Ontario, Canada
| | - J E McElhaney
- Advanced Medical Research Institute of Canada, Sudbury, Ontario, Canada
| | - D MacKinnon-Cameron
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - M Poirier
- Centre de santé et de service sociaux de Trois-Rivieres, Trois-Rivieres, Quebec, Canada
| | - J Powis
- Toronto East General Hospital, Toronto, Ontario, Canada
| | - D Richardson
- William Osler Health Centre, Brampton, Ontario, Canada
| | - M Semret
- McGill University, Montreal, Quebec, Canada
| | - S Smith
- University of Alberta, Edmonton, Alberta, Canada
| | - D Smyth
- The Moncton Hospital, Moncton, New Brunswick, Canada
| | - G Stiver
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | - L Valiquette
- Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - D Webster
- Horizon Health, Saint John, New Brunswick, Canada
| | - L Ye
- Canadian Center for Vaccinology, IWK Health Centre and Capital Health, Dalhousie University, Halifax, Nova Scotia, Canada
| | - A McGeer
- Mount Sinai Hospital, Toronto, Ontario, Canada
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Nazareth I, Tavares F, Rosillon D, Haguinet F, Bauchau V. Safety of AS03-adjuvanted split-virion H1N1 (2009) pandemic influenza vaccine: a prospective cohort study. BMJ Open 2013. [PMID: 23388195 DOI: 10.1136/bmjopen‐2012‐001912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES To assess the safety of an AS03-adjuvanted split virion H1N1 (2009) vaccine (Pandemrix) in persons vaccinated during the national pandemic influenza vaccination campaign in the UK. DESIGN Prospective, cohort, observational, postauthorisation safety study. SETTING 87 general practices forming part of the Medical Research Council General Practice Research Framework and widely distributed throughout England. PARTICIPANTS A cohort of 9143 individuals aged 7 months to 97 years who received at least one dose of the AS03-adjuvanted H1N1 pandemic vaccine during the national pandemic influenza vaccination campaign in the UK was enrolled. 94% completed the 6-month follow-up. Exclusion criteria were previous vaccination with other H1N1 pandemic vaccine and any child in care. PRIMARY AND SECONDARY OUTCOME MEASURES Medically attended adverse events (MAEs) occurring within 31 days after any dose, serious adverse events (SAEs) and adverse events of special interest (AESIs) following vaccination were collected for all participants. Solicited adverse events (AEs) were assessed in a subset of participants. RESULTS MAEs were reported in 1219 participants and SAEs in 113 participants during the 31-day postvaccination period. The most frequently reported MAEs and SAEs were consistent with events expected to be reported during the winter season in this population: lower respiratory tract infections, asthma and pneumonia. The most commonly reported solicited AEs were irritability in young children aged <5 years (61.8%), muscle aches in children aged 5-17 years (61.9%) and adults (46.9%). 18 AESIs, experienced by 14 patients, met the criteria to be considered for the observed-to-expected analyses. AESIs above the expected number were neuritis (1 case within 31 days) and convulsions (8 cases within 181 days). There were 41 deaths during the 181-day period after vaccination, fewer than expected. CONCLUSIONS Results indicate that the AS03-adjuvanted H1N1 pandemic vaccine showed a clinically acceptable reactogenicity and safety profile in all age and risk groups studied. TRIAL REGISTRATION ClinicalTrials.gov, NCT00996853.
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Affiliation(s)
- Irwin Nazareth
- Department of Primary Care & Population Health, University College London Medical School, London, UK
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Abstract
OBJECTIVES To assess the safety of an AS03-adjuvanted split virion H1N1 (2009) vaccine (Pandemrix) in persons vaccinated during the national pandemic influenza vaccination campaign in the UK. DESIGN Prospective, cohort, observational, postauthorisation safety study. SETTING 87 general practices forming part of the Medical Research Council General Practice Research Framework and widely distributed throughout England. PARTICIPANTS A cohort of 9143 individuals aged 7 months to 97 years who received at least one dose of the AS03-adjuvanted H1N1 pandemic vaccine during the national pandemic influenza vaccination campaign in the UK was enrolled. 94% completed the 6-month follow-up. Exclusion criteria were previous vaccination with other H1N1 pandemic vaccine and any child in care. PRIMARY AND SECONDARY OUTCOME MEASURES Medically attended adverse events (MAEs) occurring within 31 days after any dose, serious adverse events (SAEs) and adverse events of special interest (AESIs) following vaccination were collected for all participants. Solicited adverse events (AEs) were assessed in a subset of participants. RESULTS MAEs were reported in 1219 participants and SAEs in 113 participants during the 31-day postvaccination period. The most frequently reported MAEs and SAEs were consistent with events expected to be reported during the winter season in this population: lower respiratory tract infections, asthma and pneumonia. The most commonly reported solicited AEs were irritability in young children aged <5 years (61.8%), muscle aches in children aged 5-17 years (61.9%) and adults (46.9%). 18 AESIs, experienced by 14 patients, met the criteria to be considered for the observed-to-expected analyses. AESIs above the expected number were neuritis (1 case within 31 days) and convulsions (8 cases within 181 days). There were 41 deaths during the 181-day period after vaccination, fewer than expected. CONCLUSIONS Results indicate that the AS03-adjuvanted H1N1 pandemic vaccine showed a clinically acceptable reactogenicity and safety profile in all age and risk groups studied. TRIAL REGISTRATION ClinicalTrials.gov, NCT00996853.
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Affiliation(s)
- Irwin Nazareth
- Department of Primary Care & Population Health, University College London Medical School, London, UK
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