20-valent Pneumococcal Conjugate Vaccine Safety and Immunogenicity Study in Pneumococcal Vaccine-Naïve Adults 60 Years of Age and Older in Japan, Korea, and Taiwan

Reactions were collected in the e-diary including redness, swelling, and pain at the injection site. Exact 2-sided CI was calculated based on the Clopper and Pearson method.

Redness and swelling were graded as mild (>2.0 to 5.0 cm), moderate (>5.0 to 10.0 cm), and severe (>10.0 cm).

Pain at the injection site was graded as mild (does not interfere with activity), moderate (interferes with activity), and severe (prevents daily activity).

Events were collected in the e-diary including fever, headache, fatigue, muscle pain, and joint pain. Exact 2-sided CI was calculated based on the Clopper and Pearson method.

Fever was categorized as ≥38.0 degree Celsius (°C), ≥38.0°C to 38.4°C, >38.4°C to 38.9°C, >38.9°C to 40.0°C, and >40.0°C.

Fatigue, headache, muscle pain, and joint pain were graded as mild (does not interfere with activity), moderate (some interference with activity), and severe (prevents daily activity).

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

An SAE was any untoward medical occurrence at any dose that resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; resulted in congenital anomaly/birth defect or that was considered to be an important medical event.

OPA titers were determined for the 13 matching pneumococcal serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F. GMTs and 2-sided CIs were calculated by exponentiating the Least Square (LS) means and the corresponding CIs based on analysis of log-transformed OPA titers using a regression model with vaccine group, sex, smoking status, age at vaccination in years (continuous), baseline log-transformed OPA titers, and country.

OPA titers were determined for serotypes: 8, 10A, 11A, 12F, 15B, 22F, and 33F. GMTs and 2-sided CIs were calculated by exponentiating the LS means and the corresponding CIs based on analysis of log-transformed OPA titers using a regression model with vaccine group, sex, smoking status, age at vaccination in years (continuous), baseline log-transformed OPA titers, and country.

GMFRs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding CIs (based on the Student's t distribution), for serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F.

GMFRs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding CIs (based on the Student's t distribution), for serotypes 8, 10A, 11A, 12F, 15B, 22F, and 33F.

The percentage of participants with a ≥4-fold rise in OPA titers and associated 95% CI before vaccination to 1 month after vaccination with 20vPnC or 13vPnC for the 13 matching serotypes, including 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F were summarized.

The percentage of participants with a ≥4-fold rise in OPA titers and associated 95% CI before vaccination to 1 month after vaccination with 20vPnC or PPSV23 for the 7 additional serotypes, including 8, 10A, 11A, 12F, 15B, 22F, and 33F were summarized.

The percentage of participants with OPA titers ≥LLOQ and associated 95% CIs were calculated for the time point 1 month after vaccination with 20vPnC or 13vPnC for serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F.

The percentage of participants with OPA titers ≥LLOQ and associated 95% CIs were calculated for the time point 1 month after vaccination with 20vPnC in the 20vPnC/saline groups or PPSV23 in the 13vPnC/PPSV23 group for serotypes: 8, 10A, 11A, 12F, 15B, 22F, and 33F.

Reactions within 10 days after Vaccination 2 (PPSV23 or saline) in participants enrolled at Japan sites were collected in the e-diary including redness, swelling, and pain at the injection site. Exact 2-sided CI was calculated based on the Clopper and Pearson method.

Redness and swelling were graded as mild (>2.0 to 5.0 cm), moderate (>5.0 to 10.0 cm), and severe (>10.0 cm).

Pain at the injection site was grades as mild (does not interfere with activity), moderate (interferes with activity), and severe (prevents daily activity).

This endpoint was requested by local Japan regulator.

Events within 7 days after Vaccination 2 (PPSV23 or saline) in participants enrolled at Japan sites were collected in the e-diary including fever, headache, fatigue, muscle pain, and joint pain. Exact 2-sided CI was calculated based on the Clopper and Pearson method.

Fever was categorized as ≥38.0 °C, ≥38.0°C to 38.4°C, >38.4°C to 38.9°C, >38.9°C to 40.0°C, and >40.0°C.

Fatigue, headache, muscle pain, and joint pain were grades as mild (does not interfere with activity), moderate (some interference with activity), and severe (prevents daily activity).

This endpoint was requested by local Japan regulator.