Abstract:g This open-label multicenter clinical trial conducted in Mexico assessed the immunogenicity and safety of a 13-valent pneumococcal conjugate vaccine (PCV13) in adults >50 years of age not previously vaccinated with the 23-valent pneumococcal polysaccharide vaccine (PPSV23). The PCV13 elicited a robust immune response in this study population, as reflected by the magnitude of fold rises in functional antibody levels measured by serotype-specific opsonophagocytic activity (OPA) assays before and 1 month after v… Show more
“…In addition to the phase III studies, an open-label study in PPSV23-naive adults C50 years of age (n = 324) in Mexico showed robust immune responses in terms of OPA GMTs for vaccine serotypes at 1 month following PCV13 administration [30]. For most serotypes, overall immune responses were higher than those previously reported in similar adult populations in the USA or Europe.…”
Section: Immunogenicitymentioning
confidence: 88%
“…The modelling analysis of changes in outcomes attributable to PCV13 showed statistically significant (p \ 0.05) reductions of 37 % for IPD (95 % CI 20-51), 32 % (95 % CI 17-44) for noninvasive pneumococcal or lobar pneumonia and 12 % (95 % CI 6-17) for all-cause pneumonia among adults aged 18-39 years. There were also significant reductions in hospital admissions for noninvasive pneumococcal or lobar pneumonia in adults aged 40-64 years (by 25 %; 95 % CI [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] and in older adults aged C65 years (by 34 %; 95 % CI 27-41), and for IPD in those aged C65 years (by 29 %; 95 % CI . These findings suggest a strong and rapid development of herd protection.…”
The 13-valent pneumococcal conjugate vaccine (Prevenar 13(®), Prevnar 13(®)) [PCV13] consists of 13 serotype-specific polysaccharides of Streptococcus pneumoniae (pneumococcus), each covalently conjugated to a non-toxic immunogenic carrier protein. PCV13 has a well established immunogenicity and tolerability profile in adults, particularly those ≥50 years of age. Results of CAPiTA, a randomized, double-blind, placebo-controlled trial in >84,000 older adults aged ≥65 years, showed that PCV13 was effective in preventing vaccine-type pneumococcal community-acquired pneumonia (CAP), vaccine-type pneumococcal nonbacteraemic (noninvasive) CAP and vaccine-type invasive pneumococcal disease (IPD). These findings, along with changes in pneumococcal serotype distribution and epidemiology of pneumococcal disease, prompted the US Advisory Committee on Immunization Practices (ACIP) to recommend PCV13 in series with 23-valent pneumococcal polysaccharide vaccine (PPVS23) for all adults aged ≥65 years. PCV13 also has a role in preventing pneumococcal disease (pneumonia and IPD) in younger adults with immunocompromising conditions and potentially in those with other underlying medical conditions that increase the risk of pneumococcal disease.
“…In addition to the phase III studies, an open-label study in PPSV23-naive adults C50 years of age (n = 324) in Mexico showed robust immune responses in terms of OPA GMTs for vaccine serotypes at 1 month following PCV13 administration [30]. For most serotypes, overall immune responses were higher than those previously reported in similar adult populations in the USA or Europe.…”
Section: Immunogenicitymentioning
confidence: 88%
“…The modelling analysis of changes in outcomes attributable to PCV13 showed statistically significant (p \ 0.05) reductions of 37 % for IPD (95 % CI 20-51), 32 % (95 % CI 17-44) for noninvasive pneumococcal or lobar pneumonia and 12 % (95 % CI 6-17) for all-cause pneumonia among adults aged 18-39 years. There were also significant reductions in hospital admissions for noninvasive pneumococcal or lobar pneumonia in adults aged 40-64 years (by 25 %; 95 % CI [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] and in older adults aged C65 years (by 34 %; 95 % CI 27-41), and for IPD in those aged C65 years (by 29 %; 95 % CI . These findings suggest a strong and rapid development of herd protection.…”
The 13-valent pneumococcal conjugate vaccine (Prevenar 13(®), Prevnar 13(®)) [PCV13] consists of 13 serotype-specific polysaccharides of Streptococcus pneumoniae (pneumococcus), each covalently conjugated to a non-toxic immunogenic carrier protein. PCV13 has a well established immunogenicity and tolerability profile in adults, particularly those ≥50 years of age. Results of CAPiTA, a randomized, double-blind, placebo-controlled trial in >84,000 older adults aged ≥65 years, showed that PCV13 was effective in preventing vaccine-type pneumococcal community-acquired pneumonia (CAP), vaccine-type pneumococcal nonbacteraemic (noninvasive) CAP and vaccine-type invasive pneumococcal disease (IPD). These findings, along with changes in pneumococcal serotype distribution and epidemiology of pneumococcal disease, prompted the US Advisory Committee on Immunization Practices (ACIP) to recommend PCV13 in series with 23-valent pneumococcal polysaccharide vaccine (PPVS23) for all adults aged ≥65 years. PCV13 also has a role in preventing pneumococcal disease (pneumonia and IPD) in younger adults with immunocompromising conditions and potentially in those with other underlying medical conditions that increase the risk of pneumococcal disease.
“…AlPO 4 = aluminum phosphate; PCV13 = 13-valent pneumococcal conjugate vaccine; PPSV23 = 23-valent pneumococcal polysaccharide vaccine; TIV = trivalent inactivated influenza vaccine. A = South Africa 7 ; B = Japan 8 ; C = Japan 9 ; D = Mexico 10 ; E = Europe 11 ; F = United States and Sweden 13 ; G = United States and Europe 12 ; H = United States. 4-6 …”
Injection site reactions (ISRs; redness, swelling and pain) commonly occur within 1–2 days after vaccination. After administration of toxoid vaccines including diphtheria toxoid, a later onset of ISRs has also been observed. As the serotype capsular polysaccharides in the 13-valent pneumococcal conjugate vaccine (PCV13) are conjugated to cross-reactive material 197 (CRM197), a nontoxic variant of diphtheria toxin, the onset of ISRs over 14 days was explored in 8 adult studies with 19 cohorts. Subjects received PCV13 with aluminum phosphate (AlPO4, n = 5667) or without AlPO4 (n = 304); 1097 subjects received 23-valent pneumococcal polysaccharide vaccine (PPSV23). Late ISRs with onset between days 6–14 were observed in 8/8 cohorts aged ≥65 years after PCV13 with AlPO4 (incidence across cohorts for redness, 2.3%-19.6%; swelling, 0.9%-10.8%; pain, 1.6%-10.0%) and in 1/1 cohort after PCV13 without AlPO4 (redness 10.5%; swelling 7.5%; pain 12.3%); and in 2/4 cohorts aged 50 to 64 years after PCV13 (redness 3.1%-4.8%; swelling 1.0%-3.2%; pain 3.7%-5%). Late ISRs were not generally observed in 1/1 cohort aged 18 to 49 years after PCV13; in 2/2 cohorts aged ≥53 years after PCV13 revaccination; and in 3/3 cohorts aged ≥60 years who received PPSV23, which does not contain CRM197. Post hoc analysis demonstrated numerically higher pneumococcal immune responses in subgroups with late ISRs versus those without. In conclusion, causality of late ISRs is likely multifactorial, with age and the PCV13 carrier protein CRM197 potentially associated. AlPO4, a vaccine adjuvant, did not appear causally related. Observations do not affect the favorable risk-benefit profile of PCV13.
“…No studies on the effectiveness of PNEU-C-13 vaccine were identified through the literature search. Efficacy data of PNEU-C-13 to prevent IPD and CAP in adults who were immunocompetent at enrollment were reported in one trial (5) and three trials provided data on vaccine immunogenicity in immunocompetent and immunocompromised adults (6)(7)(8).…”
Background: Since 2015, pneumococcal 13-valent conjugate vaccine (PNEU-C-13) has been authorized for the prevention of invasive pneumococcal disease (IPD) and pneumococcal community-acquired pneumonia (CAP) in adults. Adults with immunocompromising conditions are still recommended to receive PNEU-C-13 followed by the pneumococcal 23-valent polysaccharide vaccine (PNEU-P-23). National Advisory Committee on Immunization (NACI) guidance has been requested on the use of PNEU-C-13 vaccine in immunocompetent adults 65 years of age and older.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.