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www.ncirs.usyd.edu.au
Vaccine Safety – In Australia and Internationally
NCIRS 20th Anniversary celebrations
November 2017
Associate Professor Kristine Macartney
Deputy Director, NCIRS
Vaccines held to highest possible safety standards
Why are so well placed to understand vaccine safety?
Clinical trials › Policy advisory › Evaluation › Clinical services
What we see determines our view
Case study
Population = 200,000
Vaccination coverage = 80%
Background event rate = 1 case per 10,000 (eg MS, GBS)
We need the whole picture !!!
Adverse Event
Total Rate = same (0.0001%)
Yes No
Vaccinated 16 159,984 160000
Not vaccinated 4 39,996 40000
Slide adapted from Alex Vorsters, Belgium with thanks
http://www.euro.who.int/__data/assets/pdf_file/0010/339625/Vaccine-safety-messages.pdf
Expected coincidental deaths following DTP vaccination in selected
countries
1999 USA
NCIRS analysis: Adverse events following immunisation, TGA ADRS database, 2000 to 2016, by
quarter of vaccination, by date of vaccination
2001: NCIRS commences analysis of national AEFI reports
NCIRS analysis: Adverse events following immunisation for children aged <1 year, ADRS
database, 2000 to 2016, by quarter of vaccination, by date of vaccination
Numbers of reports increase:
• New vaccines added
• Population growth
2005 NCIRS National vaccine safety workshop
Recruit patients that meet criteria
•Waiver of consent •Patient data collection •Collection of specimens
Analyses
Before – after incidence (RI)
VE using TND (controls)
Severity, risk factors
2007: 3 conditions
↓
2017: 9 conditions
Active Surveillance by NURSE
Emergency department
Inpatients
Intensive care
Laboratory results
Clinician notification
Sentinel real-time hospital-based
surveillance www.paeds.edu.au
Australia’s landmark contribution to definining
Intussusception (IS) following new rotavirus vaccines
2007 rotavirus vaccination on NIP
2011 PAEDS Sentinel surveillance – clinically
confirmed cases: comparison with historical ICD-coded
data
2013 Case ascertainment (PAEDS and S/T) 2 sources
Self controlled case series – IRR in risk v. non risk
periods (0-7;0-21 days post vaccination compared with
non risk periods)
2014 No difference in clinical outcomes (vaccine
associated/non vaccine associated)
2016 Trends in hospital-coded IS – temporary increase
in dose 1 age group (1-3 months only)
Buttery, J, Danchin M et al, Vaccine 2011; Quinn, et al, PIDJ 2012; Carlin JB, Macartney K, Lee KJ, et al. Clinical Infectious
Diseases 2013;57:1427-1434; Buttery et al PHAA NIC 2014; Dey, A International Rotavirus meeting 2016, Melbourne.
Methods: Estimates based on method of Patel, et al, NEJM 2011
#: annual number of ICD-coded hospitalisations (data from the Australian Institute of Health and Welfare) for rotavirus AGE and estimated for rotavirus-attributable
AGE (derived from Dey et al, MJA 2012 and Jayasinghe et al, Vaccine 2013). Vaccine effectiveness estimates applied by dose (see appendix).
•derived from using ICD-coded hospitalisations (data from the Australian Institute of Health and Welfare) for IS with adjustment for cases confirmed as IS, vaccine
coverage, age
Annual Hospitalisations
in children < 5 years of
age
Without
vaccination
program
With
vaccination
program
Number of events
averted or caused
Rotavirus attributable
gastroenteritis#
11073 4545 - 6528
Intussusception using
RotaTeq and/or Rotarix* 144 158 14
Effect of a rotavirus vaccination program, as compared with
no rotavirus vaccination program in Australia
Carlin JB, Macartney K, Lee KJ, et al. Clinical Infectious 2013;57:1427-1434.
Conclusions
• Additional 2 cases of IS per 100,000 infants vaccinated
• 14 extra cases above ~ 200 seen annually
• Benefits of vaccination outweigh risks – Australia and internationally
• www.immunise.health.gov.au
2007
• 1 month into program commencement
• 1 school: 26 girls in sick bay post vaccination, 4 to ED
• no organic cause
• prompt thorough response, follow-up, communication
Buttery J et al, MJA 2008; Clements ANZJPH 2007
Key HPV vaccine safety events
Australia
2007 Mass psychogenic illness
Anaphylaxis signal - NSW
2009 Mulitple sclerosis
Injection site adverse events
2013 New vaccine safety plan for
adding males to NIP
2013 Key NCIRS systematic review
Alarming recent declines in
HPV vaccine uptake
overseas
http://globalcancerinstitute.org/health-trends/hpv-vaccine-uptake-latin-america/
Australia:
Vaccine coverage is rising over time National human papillomavirus (HPV) vaccination coverage for girls at age
15, by dose number and year, Australia, 2007–2015
Source: Brotherton et al, Med J Aust 2017 www.hpvregister.org.au/research/coverage-data
Dose 1/2/3 coverage 15 yrs
86/83/78% females
78/75/67% males
14 years in 2015 = higher
87/85/79% females
82/79/74% males
An adult flu shot did this to my boy The Telegraph Sunday November 10, 2013
2010 – Influenza vaccine (Fluvax/CSL) and febrile seizures
0%
10%
20%
30%
40%
50%
60%
WA: Fluvax 2010
Febrile convulsions in 0.5-1% of
children receiving influenza vaccine
National Immunisation Strategy
2013-2018 Horvath review of vaccine adverse
events system 2011
Investigation into influenza vaccine
safety problems
7 Recommendations
including: • Evaluate benefits of additional
surveillance mechanisms to ensure
vaccine safety
• Collection of vaccine usage and safety
monitoring data key priority
www.immunise.health.gov.
au
Strategic Priority 4: Continue to
enhance vaccine safety monitoring
systems • Improve AEFI surveillance
• Vaccine safety plans for NIP
• Raise awareness of safety systems
• Data linkage for vaccine safety
Vaccine Safety plans
New vaccine introduction
Issues specific to
new vaccine
Pre-emptive safety surveillance plan
HPV vaccine
for
males
MMRV vaccine
Horvath review
Influenza vaccine in children
Pertussis vaccines in
children
Zoster vaccine
AUSVAXSAFETY SURVEILLANCE AEFI-CAN
School-based
TGA/JIC
PHREDDS
Febrile
seizures
(PAEDS)
Inappropriate
administration AEFI-CAN
(ELS)
PAEDS (SNE)
• Varicella uptake improved at age 2 years by 4% (from 85.9 to 89.9%)
• On time vaccination for measles-containing vaccine dose 2 increased by 13.5%
• No increased risk of febrile seizures post MMRV vaccine
(used as dose 2 at age 18 months)
Aug 2017
Are alternative vaccines safe? Yes
0%
10%
20%
30%
40%
50%
60%
WA: 2011-2012
0%
10%
20%
30%
40%
50%
60%
WA: Fluvax 2010
0%
10%
20%
30%
40%
50%
60%
WA, NSW, Vic: 2014
0%
10%
20%
30%
40%
50%
60%
WA, NSW, Vic, Qld, SA: 2013
Wood NJ et al MJA 2014; AusVaxSafety report 2014, Blyth et al; Vaccine 2011; Blyth et al, MJA 2011; Markus TY –
unpublished data
AUSVAXSAFETY SURVEILLANCE
What is AusVaxSafety?
Active and novel
Sentinel, routine vaccination
Automated from data extraction from practice software
SMS prompted survey
Patient reported outcomes
All ages
Vaccines: Influenza → Influenza/Pertussis/Zoster → all vaccines
Rapid analysis → weekly, including bayesian signal detection
Real time data
• Vaccine safety
• Vaccine utilisation
• Brand specific
AusVaxSafety: sites and key facts
224 national surveillance sites
~70% response rate at ~3 days
Focus vaccines • Influenza all ages
• Pertussis boosters children
• Zoster
Pillsbury et al, Eurosurveillance 2016
GPs (89%)
Community
Clinics (7%)
Hospitals (4%)
Influenza vaccine safety surveillance 1 April 2017 – 3 September 2017
73,560 participants responded (>100K contacted)
• Median age: 57 years (6 months – 102 years)
• 2% ATSI
• 2.7% pregnant
6.6% event rate
0.4% medical attendance rate
Weekly reporting - No safety signals identified
0123456789
% p
art
icip
an
ts
6 months - 4years5 years - 64years65+ years
NCIRS analysis: Adverse events following immunisation for children aged <1 year, ADRS
database, 2000 to 2016, by quarter of vaccination, by date of vaccination
2017 Australia
NCIRS and
Vaccine safety
State/Territory based AEFI
reporting
Vaccine safety initiatives
TGA national AEFI reporting
Signal investigation support
Clinical Assessment
AEFI-CAN and NSWISS (AusVaxSAfety)
AusVaxSafety
Participant-based active real-time surveillance
Large linked databases
(WA-NSW)
Primary care data analysis
•- MBS encounters GPRN
•- NPS-Medicine Insight
•(With AusVaxSafety)
Sentinel hospital based surveillance
for serious AEFI
(PAEDS)
www.ncirs.usyd.edu.au
THANK YOU to all our leaders, dedicated staff, collaborators and stakeholders and all who prevent disease through immunisation
#NCIRS20YR
Session 4 – Vaccine Communication and Safety – In Australia and
Internationally
Time Topic Speakers and Chairs
3.20 – 4.50 pm Session 4 – Vaccine Communication and Safety – In Australia and Internationally
Chair: Dr Michael Brydon
Chief Executive, The Sydney Children’s
Hospitals Network
3.20 – 3.40 pm Vaccine Hesitancy – An International Perspective Professor Noni MacDonald
3.40 – 4.00 pm Vaccine Communication – Australian and International Lessons Associate Professor Julie Leask
4.00 – 4.20 pm Vaccination in Pregnancy – Effectiveness and Safety Professor Saad Omer
4.20 – 4.40 pm Vaccine Safety – In Australia and Internationally Associate Professor Kristine Macartney
4.40 – 4.50 pm Closing Remarks
Mr David Templeman
President, Public Health Association of
Australia
www.ncirs.usyd.edu.au
#NCIRS20YR