available & new rotavirus vaccinesars.samrc.ac.za/presentations/umesh.pdftm. umesh d. parashar....
TRANSCRIPT
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TM
Umesh D. ParasharChief, Viral Gastroenteritis Branch
CDC, Atlanta, USA1
Available & New Rotavirus Vaccines
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Special thanks for slides
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RotaTeq & Rotarix licensed in 2006
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RotaTeq™ (Merck&Co., Inc.) Rotarix™ (GlaxoSmithKline)
3 oral doses beginning at 6 weeks 2 oral doses beginning at 6 weeks
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2009 – WHO Global Recommendation
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98 countries have implemented rotavirus vaccination programs
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© Bill & Melinda Gates Foundation | 6
Vaccine impact data available from all world regions and income groups
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What are the remaining challenges to global rotavirus vaccine introduction?
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Rotavirus remains the leading cause of severe diarrhea in developing countries after rotavirus vaccine introduction
Cryptosporidium6%
Rotavirus55%Norovirus
5%
ETEC6%
Other28%
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Cryptosporidium
14%
Rotavirus22%
Norovirus12%ETEC
3%
Other49%
Before vaccine After vaccine
Plats Mills et al JID 2017
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Countries will transition from GAVI eligibility for vaccine subsidy support
Angola, Congo, …
Cost effectiveness of the vaccines are going to become more and morecrucial - vaccine efficacy and costs of vaccine & vaccine delivery
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© Bill & Melinda Gates Foundation | 11
Gavi country introductions
2018: Afghanistan, Uganda, Bangladesh, Benin, DRC, Nepal (all delayed due to supply issue)2019: Bhutan, CAR, Kyrgyz Rep, Lao PDR, Nigeria,Solomon Islands, Sri Lanka2020: Indonesia, Myanmar, Timor-Leste, Ukraine2021: Azerbaijan, Korea DPR, Mongolia, Vietnam2022: Chad Comoros, Guinea
Rotavirus vaccine introductions are affected by global supply shortfall
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Prime Minister Modi “Government of India will provide a rotavirus vaccine to all Indian children”
Two Indian-made rotavirus vaccines licensed in 2018
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Rotavirus vaccine in NIP - Current and Proposed scale up by moHFW
RAJASTHAN
ODISHA
GUJARAT
MAHARASHTRA
MADHYA PRADESH
BIHAR
KARNATAKA
UTTAR PRADESH
JAMMU & KASHMIR
ASSAM
TAMIL NADU
TELANGANA
ANDHRA PRADESH
PUNJAB
JHARKHANDWEST BENGAL
ARUNACHAL PR.HARYANA
KERALA
HIMACHAL PRADESH
MANIPUR
MIZORAM
SIKKIM
A&N ISLANDS
D&N HAVELI
LAKSHADWEEP
CHHATTISGARH
UTTARAKHAND
MEGHALAYA
NAGALAND
TRIPURA
GOA
DELHI
CHANDIGARH
DAMAN & DIU
PONDICHERRY
RVV scale up NNM in 2019 (9 NNM States)
RVV scale up in 2016-2018 (11 States)
RVV scale up NNM in 2018 (3 NNM States)
RVV scale up NNM in 2020 (Remaining states)
RAJASTHAN
ODISHA
GUJARAT
MAHARASHTRA
MADHYA PRADESH
BIHAR
KARNATAKA
UTTAR PRADESH
JAMMU & KASHMIR
ASSAM
TAMIL NADU
TELANGANA
ANDHRA PRADESH
PUNJAB
JHARKHANDWEST BENGAL
ARUNACHAL PR.HARYANA
KERALA
HIMACHAL PRADESH
MANIPUR
MIZORAM
SIKKIM
A&N ISLANDS
D&N HAVELI
LAKSHADWEEP
CHHATTISGARH
UTTARAKHAND
MEGHALAYA
NAGALAND
TRIPURA
GOA
DELHI
CHANDIGARH
DAMAN & DIU
PONDICHERRY
RVV States in 2018 (2 states)RVV States (9 States)
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RotaSIIL™, Serum Institute
(Reassorted bovine-human rotavirus)Genetically engineered vaccine consisting of
5 different strains to protect against the 5 most common human rotaviruses G1,2,3,4
& 9
Rotavac and RotaSIIL were pre-qualified by WHO in 2018
ROTAVAC™, Bharat Biotech
(derived from a single Indian neonatal strain of human rotavirus) G9P11
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Efficacy of Indian rotavirus vaccines is comparable to multi-national vaccines
AfricaRotaTeq 64.2% (40.2, 79.4)Rotarix 61.7 % (44.0, 73.2)
Southeast AsiaRotaTeq 51.0% (12.8, 73.3)
IndiaRotavac 56.3% (12.8, 73.3)
Efficacy against severe disease in first year of lifeVesikari T, Matson DO, Dennehy P et al. NEJM 2006; 354:23-33; Ruiz-Palacios GM, Perez-Schael I, et al. NEJM 2006; 354:11-22Madhi SA, Cunliffe NA, Steele AD et al. NEJM 2010; 362: 346-357; Zaman K, Anh DD, Victor CV et al. Lancet 2010; 376: 615-23Armah GE, Sow S, Breiman RF et al. Lancet 2010; 376: 606-614; Bhandari N, Rongsen-Chandola T, Bavdekar A, et al. Lancet 2014; 383:2136-43; Isanaka S, Guindo O, Langendorf C, et al. N Engl J Med. 2017; 376:1121-1130; Kulkarni PS, Desai S, Tewari T, et al. Vaccine 2017;
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IndiaRotaSIIL 36.9% (11.0, 53.6)
NigerRotaSIIL 66.7% (49.9, 77.9)
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WHO PQ
Liquid presentationBharat Biotech
ROTAVACBharat Biotech
Live
-att
enua
ted,
ora
l
Lamb rotavirusLanzhou Institute of Biological Products
Liquid BRVShantha Biotechnics
Human rotavirus Polyvac, Vietnam.
ROTASIILSerum Institute
RV3-BBBiofarma, Indonesia
Liquid BRV WUHAN China
Liquid BRV BUTANTAN Brazil
Discovery & preclinical Phase 2 Phase 3 MarketPhase 1
Live
-att
enua
ted
oral
(WHO
PQ
) ROTATEQMerck
ROTARIXGSK
Heat stable pentavalentHilleman
MSD, India
Dormant Nationallicense
Oral vaccine pipeline
Neonatal schedule
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Non-replicating rotavirus vaccines
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© Bill & Melinda Gates Foundation | 18
Insufficient global supply Vaccine cost
Large cold-chain footprint
Efficacy in low income countries half that observedin high income countries
Achieving rotavirus introduction and impact in developing countries
Support existing suppliers Support new suppliers
Ensure second generation and new rotavirus vaccines have acceptable presentation
Pursue next generation rotavirus vaccines (i.e., parenteral, adjuvanted) to improve efficacy
Challenges Approach
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Key Resources
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© Bill & Melinda Gates Foundation | 20
GAVI rotavirus vaccine profiles
Attribute GSK (Rotarix)
Merck (RotaTeq)
BBIL(ROTAVAC)
SIIL(ROTASIIL)
Presentation Liquid(1 dose plastic tube)
Liquid(1 dose plastic tube)
Liquid (frozen)(1, 5 or 10 dose vial)
Lyophilized(1 or 2 dose vial)
Doses/Course 2 3 3 3
Price/Course $5.00 $10.50 $3.00 ~$4.80
Volume/Course 34 cm3 139 cm3 94.8 cm3/28.2 cm3
/11.7 cm3105.5 cm3 /63.3 cm3
(Including diluent)VVM 7 None 2 30
PQ date 2008 2008 2018 2018
https://www.gavi.org/library/gavi-documents/supply-procurement/rotavirus-vaccine-profiles/
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UNICEF vaccine product menu
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https://www.unicef.org/supply/files/Product_Menu_June_2019.pdf
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22http://rotacouncil.org/resources/rotavirus-disease-and-vaccines-series-of-briefs-2019/
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23http://rotacouncil.org/resources/rotavirus-disease-and-vaccines-series-of-briefs-2019/