Clinical trial NCT01619462: Safety and Immunogenicity of 10-valent and 13-valent Pneumococcal Conjugate Vaccines in Papua New Guinean Children
Official title: A Study of Safety and Immunogenicity of 10-valent and 13-valent Pneumococcal Conjugate Vaccines to Inform Policy Regarding Pneumococcal Vaccination of Papua New Guinean Children
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE3
Conditions: Pneumonia
Meningitis
Bacteraemia
Sepsis
Otitis Media
Keywords: pneumococcal
vaccine
papua new guinea
Lead sponsor: Papua New Guinea Institute of Medical Research
Sponsor class: OTHER_GOV
Collaborators: name: The University of Western Australia
First posted: 2012-06-14
Enrollment: 200
Sex: ALL
Minimum age (years): 28
Maximum age (years): 35
Standard ages: CHILD
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The study aims to evaluate the safety and immunogenicity of the 10-valent and 13-valent pneumococcal conjugate vaccines when administered in an accelerated schedule in Papua New Guinean children, who experience early dense upper respiratory tract colonisation with a broad range of pneumococcal serotypes, and to compare antibody titres following a booster dose of polysaccharide vaccine at 9 months with those children who received no booster at the same age.

Detailed description: The primary aim of the study is to determine whether PCV10 and PCV13 are safe and immunogenic in PNG infants for the serotypes in the respective vaccines. This study is important for the following reasons:

1. There is a lack of data worldwide on immunogenicity in populations with very high early onset of dense URT carriage.
2. The EPI immunisation schedule is very accelerated in PNG (ages 1,2 and 3 months).
3. There are not data on functional antibody to PCVs in PNG.
4. There are no data on NTHi Protein D antibody responses in PNG and worldwide in population with very high URT carriage rates from a young age, i.e. those most likely to benefit from a vaccine including NTHi protein carrier.
5. It is important to investigate impact of vaccine on carriage density in view of our finding of limited impact of 7vPCV on URT carriage.
6. There is no data on antibody responses following 10v or 13v PCV to booster with PPV as young as 9 months of age (which would be the most appropriate within the current PNG EPI schedule and in the many other third world countries).
7. There is no data on antibody responses (including functional assays) to 23vPPV challenge at age 2 years after 23vPPV booster at age 9 months in children primed with PCV.
8. The broad range of serotypes causing IPD in PNG necessitates continuing consideration of 23vPPV as a potential booster at age 9 months.
9. Serotype-specific B cell memory is an important aspect that we can now test to address immunological safety of PPV in children primed with PCV.
10. The Global Alliance for Vaccines and Immunisation (GAVI) and the World Health Organisation (WHO) have committed to the introduction of PCV for infants in GAVI-eligible countries (including PNG) using novel funding mechanism. In PNG, the introduction of a PCV is planned for 2013.

Eligibility criteria: Inclusion Criteria:

* Health infants between 28 - 35 days old

Exclusion Criteria:

* Infants of women not intending to remain in the are for at least two years
* Birth weigh \< 2000 g (2kg)
* Severe congenital abnormalities
* Mother or child known to be HIV positive

Primary outcomes:
measure: Proportion of children with serotype-specific IgG concentration >= 0.35ug/ml at 4 and 9 months of age for 90% of PCV vaccine serotypes and proportion of children with OPA >=1:8 titres at 4, 10 and 24 months
timeFrame: 3 years
Secondary outcomes:
measure: Compare antibody concentrations to pneumococcal and Haemophilus influenzae protein antigens.
timeFrame: 2 years
measure: Determine carriage rates and bacterial load of pneumococci and H.influenzae
timeFrame: 3 years
measure: Determine rates of hospital admission for acute respiratory tract infections at 9 and 23 months
timeFrame: 2 yrs
Other outcomes:
Locations:
city: Goroka
country: Papua New Guinea
facility: Papua New Guinea Institute of Medical Research
state: Eastern Highlands Province
Study officials:
affiliation: Papua New Guinea Institute of Medical Research
name: William S Pomat, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Telethon Institute for Child Health Research
name: Deborah Lehmann, MSc
role: PRINCIPAL_INVESTIGATOR
affiliation: The University of Western Australia
name: Peter Richmond, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Martinovich KM, Rahman T, de Gier C, Seppanen EJ, Orami T, Granland CM, Francis J, Yoannes M, Corscadden KJ, Ford R, Jacoby P, van den Biggelaar AHJ, Bakaletz LO, Cripps AW, Lehmann D, Richmond PC, Pomat WS, Kirkham LS, Thornton RB. Differences in Pneumococcal and Haemophilus influenzae Natural Antibody Development in Papua New Guinean Children in the First Year of Life. Front Immunol. 2021 Aug 10;12:725244. doi: 10.3389/fimmu.2021.725244. eCollection 2021.
citation: Rahman T, de Gier C, Orami T, Seppanen EJ, Granland CM, Francis JP, Michael A, Yoannes M, Corscadden KJ, Ford RL, Martinovich KM, Jacoby P, van den Biggelaar AHJ, Lehmann D, Richmond PC, Pomat WS, Thornton RB, Kirkham LS. PCV10 elicits Protein D IgG responses in Papua New Guinean children but has no impact on NTHi carriage in the first two years of life. Vaccine. 2021 Jun 11;39(26):3486-3492. doi: 10.1016/j.vaccine.2021.05.022. Epub 2021 May 21.
citation: Pomat WS, van den Biggelaar AHJ, Wana S, Francis JP, Solomon V, Greenhill AR, Ford R, Orami T, Passey M, Jacoby P, Kirkham LA, Lehmann D, Richmond PC; 10v13v PCV Trial Team. Safety and Immunogenicity of Pneumococcal Conjugate Vaccines in a High-risk Population: A Randomized Controlled Trial of 10-Valent and 13-Valent Pneumococcal Conjugate Vaccine in Papua New Guinean Infants. Clin Infect Dis. 2019 Apr 24;68(9):1472-1481. doi: 10.1093/cid/ciy743.
citation: Lehmann D, Kirarock W, van den Biggelaar AHJ, Passey M, Jacoby P, Saleu G, Masiria G, Nivio B, Greenhill A, Orami T, Francis J, Ford R, Kirkham LA, Solomon V, Richmond PC, Pomat WS; 10v13v PCV trial team. Rationale and methods of a randomized controlled trial of immunogenicity, safety and impact on carriage of pneumococcal conjugate and polysaccharide vaccines in infants in Papua New Guinea. Pneumonia (Nathan). 2017 Dec 25;9:20. doi: 10.1186/s41479-017-0044-z. eCollection 2017.