VAXNEUVANCE was studied in pediatric patients at increased risk for IPD
VAXNEUVANCE was studied in infants and children in eight randomized, double-blind clinical studies designed to evaluate immunogenicity, safety, and tolerability.
Phase 3 clinical trials for VAXNEUVANCE included:
Children born prematurely
Children living with HIV
Children living with sickle cell disease
Children who have received an allogeneic hematopoietic stem cell transplant (allo-HSCT)
These medical conditions may decrease pediatric patients’ ability to generate adequate immune responses, increasing IPD risk.1-3
For example, children born prematurely have ~5X greater risk for IPD vs infants born at full term.4
VAXNEUVANCE demonstrated strong immunogenicity in both infants and children who are healthy or at increased risk for IPD.
Study designs
In a descriptive analysis within Studies 8, 9, and 10, the safety and immunogenicity of VAXNEUVANCE were evaluated in enrolled preterm infants (<37 weeks gestation at birth). Participants were randomized to receive VAXNEUVANCE (N=142) or PCV13 (N=144) as a 4-dose series administered at 2, 4, 6, and 12 through 15 months of age. Participants in these studies may have received either US-licensed or non-US licensed concomitant vaccines according to the local recommended schedule.
Study 13 was a double-blind, descriptive study that assessed the safety and immunogenicity of VAXNEUVANCE in children 5 through 17 years of age with sickle cell disease. Participants were randomized 2:1 to receive a single dose of VAXNEUVANCE (N=70) or PCV13 (N=34).
Study 14 was a double-blind, descriptive study that assessed the safety and immunogenicity of VAXNEUVANCE in HIV-infected children 6 through 17 years of age, with CD4+ T-cell count ≥200 cells per microliter and plasma HIV RNA value <50,000 copies/mL. Participants were randomized to receive a single dose of VAXNEUVANCE (N=203) or PCV13 (N=204), followed by PNEUMOVAX®23 (Pneumococcal Vaccine Polyvalent) two months later.
Study 15 was a double-blind, descriptive study that assessed the safety and immunogenicity of VAXNEUVANCE compared to PCV13 in participants, aged 3 through 74 years of age, who had received an allogeneic hematopoietic stem cell transplant (allo-HSCT) 3 to 6 months prior to enrollment. Pediatric participants (N=14) were randomized to receive 3 doses of VAXNEUVANCE (N=8) or PCV13 (N=6), administered 1 month apart. Twelve months after allo-HSCT, participants without chronic graft-versus-host disease (cGVHD) received a single dose of PNEUMOVAX®23 (Pneumococcal Vaccine Polyvalent) and those with cGVHD received a fourth dose of VAXNEUVANCE or PCV13. All participants had a history of stable engraftment and none had severe graft-versus-host disease. IgG GMCs and OPA GMT were measured after dose 3 and 30 days following vaccination with the 4th dose of PCV or the single dose of PNEUMOVAX 23.
Allo-HSCT, allogeneic hematopoietic stem cell transplant; cGVHD, chronic graft-versus-host disease; GMC, geometric mean concentration (mcg/mL); GMT, geometric mean titer; HIV, human immunodeficiency virus; IgG, Immunoglobulin G; IPD, invasive pneumococcal disease; OPA, opsonophagocytic activity; PCV, pneumococcal conjugate vaccine; PCV13, 13-valent pneumococcal conjugate vaccine; RNA, ribonucleic acid.
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References
- Quinn CT, Wiedmann RT, Jarovsky D, et al. Safety and immunogenicity of V114, a 15-valent pneumococcal conjugate vaccine, in children with SCD: a V114-023 (PNEU-SICKLE) study. Blood Adv. 2023;7(3):414-421. doi:10.1182/bloodadvances.2022008037
- Pittet LF, Posfay-Barbe KM. Vaccination of immune compromised children—an overview for physicians. Eur J Pediatr. 2021;180(7):2035-2047. doi:10.1007/s00431-021-03997-1
- Altered immunocompetence. Centers for Disease Control and Prevention. Last reviewed August 1, 2023. Accessed January 8, 2024. https://www.cdc.gov/vaccines/hcp/acip-recs/general-recs/immunocompetence.html
- Weycker D, Farkouh RA, Strutton DR, Edelsberg J, Shea KM, Pelton SI. Rates and costs of invasive pneumococcal disease and pneumonia in persons with underlying medical conditions. BMC Health Serv Res. 2016;16:182. doi:10.1186/s12913-016-1432-4
- Recommendations to assure the quality, safety and efficacy of pneumococcal conjugate vaccines, Annex 3, TRS No 977. World Health Organization. October 19, 2013. Accessed January 26, 2024. https://www.who.int/publications/m/item/pneumococcal-conjugate-vaccines-annex3-trs-977