Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Conjugate Vaccine in Adults 60 Through 64 Years of Age

Local reactions included pain at injection site, swelling and redness recorded by participants in an electronic diary (e-diary). Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit=0.5 centimeter (cm). Redness and swelling were graded as mild: greater than (>) 2.0 to 5.0 centimeter (cm), moderate: 5.5 to 10.0 cm and severe: greater than or equal to (>=) 10.5 cm. Pain was graded as mild: did not interfere with activity, moderate: interfered with activity and severe: prevented daily activity.

Systemic events included fever, fatigue, headache, muscle pain and joint pain, recorded by participants in an e-diary. Fever was categorized as: >=38.0 degrees Celsius (C), >=38.0 to 38.4 degrees C, >38.4 to 38.9 degrees C, >38.9 to 40.0 degrees C and >40.0 degrees C. Fatigue, headache, muscle pain and joint pain were graded as mild: no interference with activity, moderate: some interference with activity and severe: prevents daily routine activity.

An AE was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs included both serious and non-serious adverse events. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. An NDCMC was defined as a disease or medical condition, not previously identified, that is expected to be persistent or is otherwise long-lasting in its effects. Percentage of participants with either SAE or NDCMCs during the specified duration are reported.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. An NDCMC was defined as a disease or medical condition, not previously identified, that is expected to be persistent or is otherwise long-lasting in its effects. Percentage of participants with either SAE or NDCMCs during the specified duration are reported.

Antibody-mediated serum OPA against the 13 common pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F) were measured using a pneumococcal OPA assay. Results were expressed as OPA GMTs. Assay results below the lower limit of quantitation (LLOQ) were set to 0.5*LLOQ in the analysis.

Antibody-mediated serum OPA against the 7 additional pneumococcal serotypes (8, 10A, 11A, 12F, 15B, 22F, 33F) were measured using a pneumococcal OPA assay. Results were expressed as OPA GMTs. Assay results below the LLOQ were set to 0.5*LLOQ in the analysis.

GMFR for the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) from before Vaccination 1 to one month after Vaccination 1 were calculated as the mean of the difference of logarithmically transformed OPA results (after vaccination - before vaccination) and transform back to the original scale. GMFRs were calculated using data from participants with non-missing OPA results at both time points. Assay results below the LLOQ were set to 0.5*LLOQ in the analysis.

GMFR for 7 additional pneumococcal serotypes (8, 10A, 11A, 12F, 15B, 22F, 33F) from before Vaccination 1 to one month after either Vaccination 1 (20vPnC) or Vaccination 2 (PPSV23) were calculated as the mean of the difference of logarithmically transformed OPA results (after vaccination - before vaccination) and transform back to the original scale. GMFRs were calculated using data from participants with non-missing OPA results at both time points. Assay results below the LLOQ were set to 0.5*LLOQ in the analysis.