1
|
Mathew G, Gracy E, Muliyil DE. Cost savings of pneumococcal vaccination in children with nephrotic syndrome in a low-middle-income country. Pediatr Nephrol 2024; 39:3125-3126. [PMID: 38691153 DOI: 10.1007/s00467-024-06390-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024]
Affiliation(s)
- Georgie Mathew
- Division of Pediatric Nephrology, Department of Child Health, Christian Medical College, Vellore, India.
| | - Elizabeth Gracy
- Division of Pediatric Nephrology, Department of Child Health, Christian Medical College, Vellore, India
| | | |
Collapse
|
2
|
Ibrahim AM, Owusu R, Nonvignon J. Sustainability of pneumococcal conjugate vaccination in Ghana: a cost-effectiveness analysis in the context of donor transition. Front Public Health 2024; 12:1383668. [PMID: 39148654 PMCID: PMC11324427 DOI: 10.3389/fpubh.2024.1383668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/16/2024] [Indexed: 08/17/2024] Open
Abstract
Background Streptococcus pneumonia is responsible for 18% of infant deaths in Ghana. With co-financing from Gavi in 2012, Ghana introduced the PCV13 into the childhood immunization programme to reduce the burden of Streptococcus pneumonia. However, Ghana will graduate to the Gavi fully self-financing phase in 2026, when the nation assumes full responsibility of paying for the PCV13. This research aims to evaluate the health impact and cost-effectiveness of PCV13 immunization in Ghana since its implementation and after the cessation of support from Gavi. Methods We used the UNIVAC tool to evaluate two main scenarios of cost-effectiveness, from vaccine introduction (2012-2025) and after Gavi transition (2026-2031) in comparison with no vaccination. The sources of data include national data, international estimates and expert opinion. Cost was considered from both the government and societal perspectives. We discounted health outcomes at 3%. Currency values were stated in US Dollars. We tested the robustness of the base case results by performing scenario and sensitivity analyses. Results PCV13 will reduce the pneumococcal disease burden by 48% from 2012 to 2031. The vaccination programme costs are USD 130 million and USD 275 million in 2012-2025 and 2026-2031 respectively. It also has a budget impact of USD 280 million for the 2026-2031 period from the perspective of government. The incremental cost-effectiveness ratios are USD 89 and USD 73 respectively from the perspectives of government and society in 2012-2025. The incremental cost-effectiveness ratios are USD 530 and USD 510 respectively from the perspectives of government and society in 2026-2031. Conclusion The PCV13 vaccination programme in Ghana is cost-effective at 50% GDP per capita threshold even when Gavi withdraws co-financing support from 2026 onwards.
Collapse
Affiliation(s)
| | - Richmond Owusu
- Department of Health Policy, Planning and Management, School of Public Health, College of Health Sciences, University of Ghana, Accra, Ghana
| | | |
Collapse
|
3
|
Owusu R, Mvundura M, Nonvignon J, Armah G, Bawa J, Antwi-Agyei KO, Amponsa-Achiano K, Dadzie F, Bonsu G, Clark A, Pecenka C, Debellut F. Rotavirus vaccine product switch in Ghana: An assessment of service delivery costs, switching costs, and cost-effectiveness. PLOS GLOBAL PUBLIC HEALTH 2023; 3:e0001328. [PMID: 37556413 PMCID: PMC10411789 DOI: 10.1371/journal.pgph.0001328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 07/04/2023] [Indexed: 08/11/2023]
Abstract
Ghana introduced rotavirus vaccine (ROTARIX 1-dose presentation) into the routine national immunization program in 2012 and switched to a different product (ROTAVAC 5-dose presentation) in 2020. ROTAVAC has a lower price per dose (US$0.85 versus US$2.15 for ROTARIX) and smaller cold chain footprint but requires more doses per regimen (three versus two). This study estimates the supply chain and service delivery costs associated with each product, the costs involved in switching products, and compares the cost-effectiveness of both products over the next ten years. We estimated the supply chain and service delivery costs associated with ROTARIX and ROTAVAC (evaluating both the 5-dose and 10-dose presentations) using primary data collected from health facilities in six of the 14 regions in the country. We estimated the costs of switching from ROTARIX to ROTAVAC using information collected from key informant interviews and financial records provided by the government. All costs were reported in 2020 US$. We used the UNIVAC decision-support model to evaluate the cost-effectiveness (US$ per disability-adjusted life-year (DALY) averted from government and societal perspectives) of ROTARIX and ROTAVAC (5-dose or 10-dose presentations) compared to no vaccination, and to each other, over a ten-year period (2020 to 2029). We ran probabilistic sensitivity analyses and other threshold analyses. The supply chain and service delivery economic cost per dose was $2.40 for ROTARIX, $1.81 for ROTAVAC 5-dose, and $1.76 for ROTAVAC 10-dose. The financial and economic cost of switching from ROTARIX to ROTAVAC 5-dose was $453,070 and $883,626, respectively. Compared to no vaccination, the cost per DALY averted was $360 for ROTARIX, $298 for ROTAVAC 5-dose, and $273 for ROTAVAC 10-dose. ROTAVAC 10-dose was the most cost-effective option and would be cost-effective at willingness-to-pay thresholds exceeding 0.12 times the national GDP per capita ($2,206 in the year 2020). The switch from ROTARIX to ROTAVAC 5-dose in 2020 was cost-saving. Rotavirus vaccination is highly cost-effective in Ghana. A switch from ROTAVAC 5-dose to ROTAVAC 10-dose would be cost-saving and should be considered.
Collapse
Affiliation(s)
- Richmond Owusu
- School of Public Health, University of Ghana, Accra, Ghana
| | - Mercy Mvundura
- Center for Vaccine Innovation and Access, PATH, Seattle, Washington, United States of America
| | - Justice Nonvignon
- School of Public Health, University of Ghana, Accra, Ghana
- Africa Centre for Disease Control and Prevention, Addis Ababa, Ethiopia
| | - George Armah
- Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - John Bawa
- Center for Vaccine Innovation and Access, PATH, Accra, Ghana
| | | | | | - Frederick Dadzie
- Expanded Programme on Immunization, Ghana Health Service, Accra, Ghana
| | - George Bonsu
- Expanded Programme on Immunization, Ghana Health Service, Accra, Ghana
| | - Andrew Clark
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Clint Pecenka
- Center for Vaccine Innovation and Access, PATH, Seattle, Washington, United States of America
| | | |
Collapse
|
4
|
Syeed MS, Ghule P, Le LM, Veettil SK, Horn EK, Perdrizet J, Wasserman M, Thakkinstian A, Chaiyakunapruk N. Pneumococcal Vaccination in Children: A Systematic Review and Meta-Analysis of Cost-Effectiveness Studies. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:598-611. [PMID: 36328324 DOI: 10.1016/j.jval.2022.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 09/15/2022] [Accepted: 10/05/2022] [Indexed: 05/06/2023]
Abstract
OBJECTIVES Pneumococcal conjugate vaccines (PCVs) have significantly reduced disease burden caused by Streptococcus pneumoniae, a leading cause of childhood morbidity and mortality globally. This systematic review and meta-analysis aimed to assess the incremental net benefit (INB) of the 13-valent PCV (PCV13) and 10-valent PCV (PCV10) in children. METHODS We performed a comprehensive search in several databases published before May 2022. Studies were included if they were cost-effectiveness or cost-utility analyses of PCV13 or PCV10 compared with no vaccination or with each other in children. Various monetary units were converted to purchasing power parity, adjusted to 2021 US dollars. The INBs were calculated and then pooled across studies stratified by country income level, perspective, and consideration of herd effects, using a random-effect model. RESULTS Seventy studies were included. When herd effects were considered, PCV13 was cost-effective compared with PCV10 from the payer perspective in both high-income countries (HICs) (INB, $103.94; 95% confidence interval, $75.28-$132.60) and low- and middle-income countries (LMICs) (INB, $53.49; 95% confidence interval, $30.42-$76.55) with statistical significance. These findings were robust across a series of sensitivity analyses. PCV13 was cost-effective compared with no vaccination across perspectives and consideration of herd effects in both HICs and LMICs, whereas findings were less consistent for PCV10. CONCLUSION PCVs were generally cost-effective compared with no vaccination in HICs and LMICs. Our study found that PCV13 was cost-effective compared with PCV10 when herd effects were considered from the payer perspective in both HICs and LMICs. The results are sensitive to the consideration of herd effects.
Collapse
Affiliation(s)
- M Sakil Syeed
- University of Utah College of Pharmacy, Salt Lake City, UT, USA
| | - Priyanka Ghule
- University of Utah College of Pharmacy, Salt Lake City, UT, USA
| | - Lan M Le
- University of Utah College of Pharmacy, Salt Lake City, UT, USA
| | | | | | | | | | - Ammarin Thakkinstian
- The Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nathorn Chaiyakunapruk
- University of Utah College of Pharmacy, Salt Lake City, UT, USA; IDEAS Center, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT, USA.
| |
Collapse
|
5
|
Du Y, Wang Y, Zhang T, Li J, Song H, Wang Y, Xu Y, Cui J, Yang M, Wang Z, Wu X, Wang C. Economic evaluations of 13-valent pneumococcal conjugate vaccine: a systematic review. Expert Rev Vaccines 2023; 22:193-206. [PMID: 36719062 DOI: 10.1080/14760584.2023.2173176] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
INTRODUCTION Studies on economic evaluations of the 13-valent pneumococcal conjugate vaccine (PCV13) have been increasing over the last decade. No systematic reviews have synthesized the evidence of economic evaluations of the PCV13. AREAS COVERED We systematically searched the literature which published on peer-reviewed journals from January 2010 to June 2022. The literature search was conducted in the following electronic databases: PubMed, Web of Science, Embase, the Cochrane Library, CNKI, Wanfang database, VIP database. We identified 1827 records from the database search. After excluding 511 duplicates, 1314 records were screened, of which 156 records were retained for the full-text reviews. A total of 44 studies were included in the review. Among the included studies, 33 studies were economic evaluations of PCV13 among children, and 11 studies were conducted among adults. The literature search initiated in April, 2022, and updated in June 2022. EXPERT OPINION Vaccination with PCV13 was found to significantly reduce the mortality and morbidity of pneumococcal diseases and was cost-effective compared to no vaccine or several other pneumococcal vaccines (e.g. PCV10, PPV23). Future research is advised to expand economic evaluations of PCV13 combined with dynamic model to enhance methodologic rigor and prediction accuracy.
Collapse
Affiliation(s)
- Yuanze Du
- School of Public Health, Weifang Medical University, Weifang, China
| | - Yi Wang
- Division of Immunization, Center for Disease Control and Prevention, Weifang, China
| | - Ting Zhang
- School of Population Medicine & Public Health, Chinese Academy of Medical Sciences/ Peking Union Medical College, Beijing, China
| | - Juanjuan Li
- School of Public Health, Weifang Medical University, Weifang, China
| | - Hewei Song
- School of Public Health, Weifang Medical University, Weifang, China
| | - Yuanyuan Wang
- Division of Immunization, Center for Disease Control and Prevention, Weifang, China
| | - Yifei Xu
- School of Public Health, Weifang Medical University, Weifang, China
| | - Jingwen Cui
- School of Public Health, Weifang Medical University, Weifang, China
| | - Ming Yang
- School of Public Health, Weifang Medical University, Weifang, China
| | - Zengwu Wang
- Department of Neurosurgery, Weifang People's Hospital, Weifang, China
| | - Xiuyun Wu
- School of Public Health, Weifang Medical University, Weifang, China
| | - Chunping Wang
- School of Public Health, Weifang Medical University, Weifang, China
| |
Collapse
|
6
|
Mathew G, George AS, Deepthi RV, Rose W, Verghese VP, Varghese R, Veeraraghavan B, Agarwal I. Epidemiology and outcomes of pneumococcal sepsis in children with nephrotic syndrome in a developing country. Pediatr Nephrol 2023; 38:131-137. [PMID: 35425998 PMCID: PMC9009986 DOI: 10.1007/s00467-022-05550-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND Pneumococcal infections are common in children with nephrotic syndrome. Knowledge of the commonly available serotypes and antibiotic susceptibility will help in prevention and appropriate management of pneumococcal sepsis, especially in resource-limited countries. METHODS Demographic, clinical, and laboratory data on children with nephrotic syndrome and pneumococcal infections were extracted from the electronic medical records. RESULTS Sixty-three isolates of pneumococci obtained from 60 children with nephrotic syndrome, over a period of 14 years, were included in the study. This represented 18% of all pneumococcal infections occurring in children during the same period. Commonly available vaccines covered up to 58% of all the serotypes causing infection. Severe disease, with shock, intensive care admission and/or meningitis, was observed in 38% children and mortality was observed in 10%. Resistance to commonly used antibiotics was not observed, except for erythromycin. CONCLUSIONS Pneumococcal sepsis was observed to be common in children with nephrotic syndrome and results in significant morbidity and mortality. Commonly used antibiotics were observed to be effective in management of the infections.
Collapse
Affiliation(s)
- Georgie Mathew
- Department of Pediatric Nephrology, Christian Medical College, Vellore, India.
| | - Anish Sam George
- Department of Pediatric Nephrology, Christian Medical College, Vellore, India
| | - R V Deepthi
- Department of Pediatric Nephrology, Christian Medical College, Vellore, India
| | - Winsley Rose
- Department of Pediatric Infectious Diseases, Christian Medical College, Vellore, India
| | | | - Rosemol Varghese
- Department of Clinical Microbiology, Christian Medical College, Vellore, India
| | | | - Indira Agarwal
- Department of Pediatric Nephrology, Christian Medical College, Vellore, India
| |
Collapse
|
7
|
Debellut F, Pecenka C, Hausdorff WP, Clark A. Potential impact and cost-effectiveness of injectable next-generation rotavirus vaccines in 137 LMICs: a modelling study. Hum Vaccin Immunother 2022; 18:2040329. [PMID: 35240926 PMCID: PMC9009916 DOI: 10.1080/21645515.2022.2040329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/21/2022] [Accepted: 02/06/2022] [Indexed: 11/23/2022] Open
Abstract
While current live, oral rotavirus vaccines (LORVs) are reducing severe diarrhea everywhere, their effectiveness is lower in high burden settings. Alternative approaches are in advanced stages of clinical development, including injectable next-generation rotavirus vaccine (iNGRV) candidates, which have the potential to better protect children, be combined with existing routine immunizations and be more affordable than current LORVs. In an effort to better understand the real public health value of iNGRVs and to help inform decisions by international agencies, funders, and vaccine manufacturers, we conducted an impact and cost-effectiveness analysis examining 20 rotavirus vaccine use cases. We evaluated several currently licensed LORVs, one neonatal oral NGRV (oNGRV), one iNGRV, and one iNGRV-DTP (iNGRV comprising part of a DTP-containing combination) over a ten-year timeframe in 137 low- and middle-income countries. The most promising use case identified was a high efficacy iNGRV-DTP, predicted to have the lowest vaccine program cost (US$1.4 billion), the highest vaccine benefit (750,000 rotavirus deaths averted, 13 million rotavirus hospital admissions averted, US$ 2.7 billion health-care cost averted), and most favorable cost-effectiveness (cost-saving). iNGRV-DTP vaccine remained the most affordable, safe, and cost-effective option even when it was assumed to have equivalent efficacy to the current LORVs. This study shows that while the development of iNGRVs with superior efficacy to currently licensed LORVs would be ideal, iNGRVs with similar efficacy to LORVs would offer substantial public health value. It also highlights the economic value of accelerating the development of DTP-based combination vaccines that include iNGRV to provide rotavirus protection.
Collapse
Affiliation(s)
| | - Clint Pecenka
- PATH, Center for Vaccine Innovation and Access, Seattle, WA, USA
| | - William P. Hausdorff
- PATH, Center for Vaccine Innovation and Access, Washington, DC, USA
- Faculté de Médecine, Université Libre de Bruxelles, Brussels, Belgium
| | - Andrew Clark
- Faculty of Public Health and Policy, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| |
Collapse
|
8
|
Shah K, Singh M, Kotwani P, Tyagi K, Pandya A, Saha S, Saxena D, Rajshekar K. Comprehensive league table of cost-utility ratios: A systematic review of cost-effectiveness evidence for health policy decisions in India. Front Public Health 2022; 10:831254. [PMID: 36311623 PMCID: PMC9606776 DOI: 10.3389/fpubh.2022.831254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 08/22/2022] [Indexed: 01/21/2023] Open
Abstract
Background and objectives Although a relatively recent concept for developing countries, the developed world has been using League Tables as a policy guiding tool for a comprehensive assessment of health expenditures; country-specific "League tables" can be a very useful tool for national healthcare planning and budgeting. Presented herewith is a comprehensive league table of cost per Quality Adjusted Life Years (QALY) or Disability Adjusted Life Years (DALY) ratios derived from Health Technology Assessment (HTA) or economic evaluation studies reported from India through a systematic review. Methods Economic evaluations and HTAs published from January 2003 to October 2019 were searched from various databases. We only included the studies reporting common outcomes (QALY/DALY) and methodology to increase the generalizability of league table findings. To opt for a uniform criterion, a reference case approach developed by Health Technology Assessment in India (HTAIn) was used for the reporting of the incremental cost-effectiveness ratio. However, as, most of the articles expressed the outcome as DALY, both (QALY and DALY) were used as outcome indicators for this review. Results After the initial screening of 9,823 articles, 79 articles meeting the inclusion criteria were selected for the League table preparation. The spectrum of intervention was dominated by innovations for infectious diseases (33%), closely followed by maternal and child health (29%), and non-communicable diseases (20%). The remaining 18% of the interventions were on other groups of health issues, such as injuries, snake bites, and epilepsy. Most of the interventions (70%) reported DALY as an outcome indicator, and the rest (30%) reported QALY. Outcome and cost were discounted at the rate of 3 by 73% of the studies, at 5 by 4% of the studies, whereas 23% of the studies did not discount it. Budget impact and sensitivity analysis were reported by 18 and 73% of the studies, respectively. Interpretation and conclusions The present review offers a reasonably coherent league table that reflects ICER values of a range of health conditions in India. It presents an update for decision-makers for making decisions about resource allocation.
Collapse
Affiliation(s)
- Komal Shah
- Indian Institute of Public Health Gandhinagar (IIPHG), Gandhinagar, India,*Correspondence: Komal Shah
| | - Malkeet Singh
- HTAIn Secretariat-Department of Health Research, New Delhi, India
| | | | - Kirti Tyagi
- HTAIn Secretariat-Department of Health Research, New Delhi, India
| | - Apurvakumar Pandya
- Faculty of Medicine, Parul Institute of Public Health, Parul University, Vadodara, India
| | - Somen Saha
- Indian Institute of Public Health Gandhinagar (IIPHG), Gandhinagar, India
| | - Deepak Saxena
- Indian Institute of Public Health Gandhinagar (IIPHG), Gandhinagar, India
| | | |
Collapse
|
9
|
Silva PH, Vázquez Y, Campusano C, Retamal-Díaz A, Lay MK, Muñoz CA, González PA, Kalergis AM, Bueno SM. Non-capsular based immunization approaches to prevent Streptococcus pneumoniae infection. Front Cell Infect Microbiol 2022; 12:949469. [PMID: 36225231 PMCID: PMC9548657 DOI: 10.3389/fcimb.2022.949469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 09/02/2022] [Indexed: 12/02/2022] Open
Abstract
Streptococcus pneumoniae is a Gram-positive bacterium and the leading cause of bacterial pneumonia in children and the elderly worldwide. Currently, two types of licensed vaccines are available to prevent the disease caused by this pathogen: the 23-valent pneumococcal polysaccharide-based vaccine and the 7-, 10, 13, 15 and 20-valent pneumococcal conjugate vaccine. However, these vaccines, composed of the principal capsular polysaccharide of leading serotypes of this bacterium, have some problems, such as high production costs and serotype-dependent effectiveness. These drawbacks have stimulated research initiatives into non-capsular-based vaccines in search of a universal vaccine against S. pneumoniae. In the last decades, several research groups have been developing various new vaccines against this bacterium based on recombinant proteins, live attenuated bacterium, inactivated whole-cell vaccines, and other newer platforms. Here, we review and discuss the status of non-capsular vaccines against S. pneumoniae and the future of these alternatives in a post-pandemic scenario.
Collapse
Affiliation(s)
- Pedro H. Silva
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Yaneisi Vázquez
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Camilo Campusano
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angello Retamal-Díaz
- Departamento de Biotecnología, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile
| | - Margarita K. Lay
- Departamento de Biotecnología, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile
| | - Christian A. Muñoz
- Unidad de Microbiología, Facultad de Ciencias de la Salud, Universidad de Antofagasta, Antofagasta, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M. Bueno
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- *Correspondence: Susan M. Bueno,
| |
Collapse
|
10
|
Portnoy A, Hsieh YL, Abbas K, Klepac P, Santos H, Brenzel L, Jit M, Ferrari M. Differential health impact of intervention programs for time-varying disease risk: a measles vaccination modeling study. BMC Med 2022; 20:113. [PMID: 35260139 PMCID: PMC8904070 DOI: 10.1186/s12916-022-02242-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 01/06/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Dynamic modeling is commonly used to evaluate direct and indirect effects of interventions on infectious disease incidence. The risk of secondary outcomes (e.g., death) attributable to infection may depend on the underlying disease incidence targeted by the intervention. Consequently, the impact of interventions (e.g., the difference in vaccination and no-vaccination scenarios) on secondary outcomes may not be proportional to the reduction in disease incidence. Here, we illustrate the estimation of the impact of vaccination on measles mortality, where case fatality ratios (CFRs) are a function of dynamically changing measles incidence. METHODS We used a previously published model of measles CFR that depends on incidence and vaccine coverage to illustrate the effects of (1) assuming higher CFR in "no-vaccination" scenarios, (2) time-varying CFRs over the past, and (3) time-varying CFRs in future projections on measles impact estimation. We used modeled CFRs in alternative scenarios to estimate measles deaths from 2000 to 2030 in 112 low- and middle-income countries using two models of measles transmission: Pennsylvania State University (PSU) and DynaMICE. We evaluated how different assumptions on future vaccine coverage, measles incidence, and CFR levels in "no-vaccination" scenarios affect the estimation of future deaths averted by measles vaccination. RESULTS Across 2000-2030, when CFRs are separately estimated for the "no-vaccination" scenario, the measles deaths averted estimated by PSU increased from 85.8% with constant CFRs to 86.8% with CFRs varying 2000-2018 and then held constant or 85.9% with CFRs varying across the entire time period and by DynaMICE changed from 92.0 to 92.4% or 91.9% in the same scenarios, respectively. By aligning both the "vaccination" and "no-vaccination" scenarios with time-variant measles CFR estimates, as opposed to assuming constant CFRs, the number of deaths averted in the vaccination scenarios was larger in historical years and lower in future years. CONCLUSIONS To assess the consequences of health interventions, impact estimates should consider the effect of "no-intervention" scenario assumptions on model parameters, such as measles CFR, in order to project estimated impact for alternative scenarios according to intervention strategies and investment decisions.
Collapse
Affiliation(s)
- Allison Portnoy
- Center for Health Decision Science, Harvard T.H. Chan School of Public Health, 718 Huntington Avenue 2nd Floor, Boston, MA, 02115, USA.
| | - Yuli Lily Hsieh
- Interfaculty Initiative in Health Policy, Harvard University, Cambridge, 02138, USA
| | - Kaja Abbas
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Petra Klepac
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Heather Santos
- Department of Biology, Pennsylvania State University, State College, 16801, USA
| | - Logan Brenzel
- Bill & Melinda Gates Foundation, Seattle, 98109, USA
| | - Mark Jit
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Matthew Ferrari
- Department of Biology, Pennsylvania State University, State College, 16801, USA
| |
Collapse
|
11
|
Ghia CJ, Horn EK, Rambhad G, Perdrizet J, Chitale R, Wasserman MD. Estimating the Public Health and Economic Impact of Introducing the 13-Valent Pneumococcal Conjugate Vaccine or 10-Valent Pneumococcal Conjugate Vaccines into State Immunization Programs in India. Infect Dis Ther 2021; 10:2271-2288. [PMID: 34313958 PMCID: PMC8572948 DOI: 10.1007/s40121-021-00498-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/05/2021] [Indexed: 12/03/2022] Open
Abstract
Introduction Although the pneumococcal conjugate vaccine (PCV) has been introduced into select state immunization programs (SIPs) in India, many children remain unvaccinated. Recently, India’s Advisory Committee on Vaccines & Immunization Practices recommended PCV on the pediatric immunization schedule nationally. This study estimates the public health and economic impact of introducing either Pfizer’s 13-valent PCV (PCV13-PFE), GlaxoSmithKline’s 10-valent PCV (PCV10-GSK), or Serum Institute of India’s 10-valent PCV (PCV10-SII) into every pediatric SIP. Methods A model was developed to predict the disease cases, deaths, and costs associated with implementing PCV13-PFE, PCV10-GSK, or PCV10-SII in SIPs compared to no vaccination program across a 5-year period (2021–2025). State and national-level uptake rate and clinical and economic input parameters were collected from published literature. Disease outcomes included invasive pneumococcal disease, inpatient and outpatient pneumonia, and otitis media. Costs were estimated as vaccine-related costs and direct medical costs incurred to the healthcare system. Results were reported by individual state and aggregated nationally.
Results Estimated over 5 years, implementing PCV13-PFE in SIPs could avert 12.1 million cases and save 626,512 lives among children under 5 years old compared to no vaccination. This corresponds to net national cost savings of over $1.0 billion. Both lower-valent PCVs are estimated to provide less economic savings than PCV13-PFE inclusive of vaccine-related costs. Compared with PCV13-PFE, implementing PCV10-GSK or PCV10-SII nationally is estimated to have a smaller public health impact, with PCV10-GSK averting 8.4 million cases (436,577 deaths) and PCV10-SII preventing 10.3 million cases (531,545 deaths) in India compared to no vaccination, respectively. Conclusion Implementation of PCV13-PFE throughout India is estimated to provide greater public health and economic benefits than PCV10-GSK or PCV10-SII SIPs. Our analysis highlights the substantial disease cases, deaths, and health system cost savings that may be realized from implementing PCV programs throughout India. Supplementary Information The online version contains supplementary material available at 10.1007/s40121-021-00498-4.
Collapse
Affiliation(s)
- Canna J Ghia
- Pfizer Inc., Medical Affairs, Mumbai, India. .,Pfizer Limited, The Capital, 1802, 18th Floor, Plot No. C-70, 'G Block', Bandra Kurla Complex, Bandra East, Mumbai, 400051, India.
| | - Emily K Horn
- Pfizer Inc., Health Economics and Outcomes Research, New York, USA
| | | | - Johnna Perdrizet
- Pfizer Inc., Health Economics and Outcomes Research, New York, USA
| | - Ramaa Chitale
- Pfizer Inc., Health Economics and Outcomes Research, New York, USA
| | - Matt D Wasserman
- Pfizer Inc., Health Economics and Outcomes Research, New York, USA
| |
Collapse
|
12
|
Debellut F, Clark A, Pecenka C, Tate J, Baral R, Sanderson C, Parashar U, Atherly D. Evaluating the potential economic and health impact of rotavirus vaccination in 63 middle-income countries not eligible for Gavi funding: a modelling study. Lancet Glob Health 2021; 9:e942-e956. [PMID: 33891885 PMCID: PMC8205857 DOI: 10.1016/s2214-109x(21)00167-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Middle-income countries (MICs) that are not eligible for funding from Gavi, the Vaccine Alliance, have been slow to adopt rotavirus vaccines. Few studies have evaluated the cost-effectiveness and benefit-risk of rotavirus vaccination in these settings. We aimed to assess the potential economic and health impact of rotavirus vaccination in 63 MICs not eligible for funding from Gavi. METHODS In this modelling study, we estimated the cost-effectiveness and benefit-risk of rotavirus vaccination in 63 MICs not eligible to Gavi funding. We used an Excel-based proportionate outcomes model with a finely disaggregated age structure to estimate the number of rotavirus gastroenteritis cases, clinic visits, hospitalisations, and deaths averted by vaccination in children younger than 5 years over a 10-year period. We calculated cost-effectiveness ratios (costs per disability-adjusted life-years averted compared with no vaccination) and benefit-risk ratios (number of hospitalisations due to rotavirus gastroenteritis averted per excess hospitalisations due to intussusception). We evaluated three alternative vaccines available globally (Rotarix, Rotavac, and Rotasiil) and used information from vaccine manufacturers regarding anticipated vaccine prices. We ran deterministic and probabilistic uncertainty analyses. FINDINGS Over the period 2020-29, rotavirus vaccines could avert 77 million (95% uncertainty interval [UI] 51-103) cases of rotavirus gastroenteritis and 21 million (12-36) clinic visits, 3 million (1·4-5·6) hospitalisations, and 37 900 (25 900-55 900) deaths due to rotavirus gastroenteritis in 63 MICs not eligible for Gavi support. From a government perspective, rotavirus vaccination would be cost-effective in 48 (77%) of 62 MICs considered. The benefit-risk ratio for hospitalisations prevented versus those potentially caused by vaccination exceeded 250:1 in all countries. INTERPRETATION In most MICs not eligible for Gavi funding, rotavirus vaccination has high probability to be cost-effective with a favourable benefit-risk profile. Policy makers should consider this new evidence when making or revisiting decisions on the use of rotavirus vaccines in their respective countries. FUNDING Bill & Melinda Gates Foundation.
Collapse
Affiliation(s)
- Frédéric Debellut
- Center for Vaccine Innovation and Access, PATH, Geneva, Switzerland.
| | - Andrew Clark
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK
| | - Clint Pecenka
- Center for Vaccine Innovation and Access, PATH, Seattle, WA, USA
| | - Jacqueline Tate
- Division of Viral Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ranju Baral
- Center for Vaccine Innovation and Access, PATH, Seattle, WA, USA
| | - Colin Sanderson
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK
| | - Umesh Parashar
- Division of Viral Diseases, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Deborah Atherly
- Center for Vaccine Innovation and Access, PATH, Seattle, WA, USA
| |
Collapse
|
13
|
Wang BC, Chaiyakunapruk N, Zhu S, Babigumira JB, Furnback W, Chitale R, Gamil A, Zhao K, Wasserman M. A systematic literature review of economic evaluations of pneumococcal conjugate vaccines in east and southeast Asia (2006-2019). Expert Rev Vaccines 2021; 21:885-898. [PMID: 33682584 DOI: 10.1080/14760584.2021.1894933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Pneumococcal infections can lead to serious invasive diseases such as meningitis, septicemia and pneumonia, as well as milder but more common illnesses such as sinusitis and otitis media. The World Health Organization (WHO) recommends the inclusion of pneumococcal conjugate vaccines (PCVs) in infant National Immunization Program (NIP) programs worldwide. Decision-makers in Asian countries planning to introduce PCVs in their respective NIP will need a comprehensive evidence of effectiveness of PCVs at the population level and economic evidence including cost-effectiveness. AREAS COVERED A systematic literature review (from 1/1/2016 to 10/11/2019) of PCVs in East and Southeast Asia to understand (1) the contributing factors to cost-effectiveness results of PCVs and (2) whether gaps in evidence exist suggesting why the region may have yet to implement full NIPs. EXPERT OPINION In East and Southeast Asia, vaccination with PCVs was found to significantly reduce the mortality and morbidity of pneumococcal diseases and was cost-effective compared to no vaccination. Study assumptions, specifically vaccine local acquisition, the inclusion or exclusion of indirect effects (serotype replacement and herd effect), cross-protection, and protection against nontypeable haemophilus influenzae and serotype 3, were the main drivers of cost-effectiveness.
Collapse
Affiliation(s)
- Bruce Cm Wang
- Health Economics and Real World Evidence , Elysia Group, LLC, New York, NY, USA
| | | | - Shuiqing Zhu
- Health Economics and Outcomes Research, Pfizer Investment Co. Ltd, Shanghai, China
| | | | - Wesley Furnback
- Health Economics and Real World Evidence , Elysia Group, LLC, New York, NY, USA
| | - Ramaa Chitale
- Health Economics and Outcomes Research, Pfizer Inc, New York, NY, USA
| | - Amgad Gamil
- Medical and Scientific Affairs, Pfizer Inc, Singapore
| | - Kun Zhao
- Health Technology Assessment, China National Health Development Research Center, National Health Commission of the People's Republic of China
| | - Matt Wasserman
- Health Economics and Outcomes Research, Pfizer Inc, New York, NY, USA
| |
Collapse
|
14
|
Nagar R, Ambiya MS, Dalal S, Bhadauriya PS, Abdullah H, Shahnawaz M, Weinberger DM. Real-time monitoring of the rollout of pneumococcal conjugate vaccines in rural India using a digital tracking platform. Gates Open Res 2021. [DOI: 10.12688/gatesopenres.13206.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: In 2017, the pneumococcal conjugate vaccine (PCV) was introduced into the Indian immunization program as a priority. However, monitoring the implementation of this program has been a major challenge in rural India. Novel digital health platforms, used to track vaccine delivery, can address this issue. Methods: We analyzed data collected in a rural part of the Udaipur District of India, which recently introduced PCV13 into the routine immunization program. The data were collected by Khushi Baby, a novel technology platform which facilitates tracking the vaccination status of individual children. We assessed the percent of children receiving 1, 2, or 3 doses of the vaccine at different ages and time points, as well as geographic variations in uptake. Only doses received before 12 months of age were considered for this analysis. Results: More than 96% of children captured by the database received the first dose of PCV13. Uptake of the second dose ranged from 69% to 90% across the five regions, and 44% to 76% of children received the third (booster) dose within 3 months of the recommended date. Conclusions: These data provide early evidence that the primary doses of PCV13 are being administered at a high level in rural India; however, there is considerable variability between regions. Additionally, the receipt of the booster dose may be lower than desired. Given the importance of the booster dose in reducing pneumococcal transmission, its delivery is essential to ensure maximal benefit of the vaccine program.
Collapse
|
15
|
Zakiyah N, Insani WN, Suwantika AA, van der Schans J, Postma MJ. Pneumococcal Vaccination for Children in Asian Countries: A Systematic Review of Economic Evaluation Studies. Vaccines (Basel) 2020; 8:vaccines8030426. [PMID: 32751569 PMCID: PMC7564215 DOI: 10.3390/vaccines8030426] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Evidence on costs and health benefits of pneumococcal conjugate vaccine (PCV) for children in Asian countries is limited but growing. As a region with a considerably high burden of pneumococcal disease, it is prominent to have a comprehensive overview on the cost-effectiveness of implementing and adopting a PCV vaccination program. Methods: We conducted a systematic review from Pubmed and Embase to identify economic evaluation studies of PCV for children in Asian countries up to May 2020. Data extraction included specific characteristics of the study, input parameters, cost elements, cost-effectiveness results, and key drivers of uncertainty. The Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) statement was followed for this systematic review. The reporting quality of the included studies was evaluated using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement. Results: After the screening process on both the title and abstract and full text of 518 records, a total of 25 studies fulfilled the inclusion criteria, and were included in the review. The majority of included studies demonstrates that PCV for children is cost-effective in most of the Asian region, and even cost-saving in some countries. Most of the included studies implemented cost utility analysis (CUA) using either quality-adjusted life years (QALYs) or disability-adjusted life years (DALYs). Overall, the main drivers affecting the cost effectiveness were vaccine price, burden regarding pneumonia-related parameters, and the inclusion of herd effects. Conclusion: The children pneumococcal vaccination program appears to be a cost-effective intervention in Asia, and even cost-saving in certain conditions. Vaccine price, pneumonia-related disease burden, and the inclusion of the herd effect are observed as important key drivers in estimating cost-effectiveness in this region. Incorporating PCV in vaccination programs in this region was found to be highly favorable.
Collapse
Affiliation(s)
- Neily Zakiyah
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Bandung 40132, Indonesia; (W.N.I.); (A.A.S.)
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Padjadjaran University, Bandung 40132, Indonesia;
- Correspondence: ; Tel.: +62-22-7796200
| | - Widya N. Insani
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Bandung 40132, Indonesia; (W.N.I.); (A.A.S.)
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Padjadjaran University, Bandung 40132, Indonesia;
- Research Department of Practice and Policy, School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Auliya A. Suwantika
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Bandung 40132, Indonesia; (W.N.I.); (A.A.S.)
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Padjadjaran University, Bandung 40132, Indonesia;
- Center for Health Technology Assessment, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Jurjen van der Schans
- Unit of Global Health, Department of Health Sciences, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, The Netherlands;
- Unit of PharmacoTherapy, Epidemiology and Economics (PTE2), Department of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands
- Department of Economics, Econometrics and Finance, Faculty of Economics and Business, University of Groningen, 9747 AE Groningen, The Netherlands
| | - Maarten J. Postma
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Padjadjaran University, Bandung 40132, Indonesia;
- Unit of Global Health, Department of Health Sciences, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, The Netherlands;
- Unit of PharmacoTherapy, Epidemiology and Economics (PTE2), Department of Pharmacy, University of Groningen, 9713 AV Groningen, The Netherlands
- Department of Economics, Econometrics and Finance, Faculty of Economics and Business, University of Groningen, 9747 AE Groningen, The Netherlands
| |
Collapse
|