The purpose of this clinical trial is to learn about the safety, tolerability and immunogenicity of BNT162b RNA-based SARS-CoV-2 vaccine candidates in adults to prevent COVID-19. For all cohorts (groups of participants), this study is seeking participants who are healthy (who may have preexisting disease if it is stable); All participants will receive a single dose of the study vaccine at the first study clinic and will return to the study clinic at least 4 more times. At each clinic visit, a blood sample will be taken. The study is about 6 months long for each participant. The vaccine candidates in this study are investigational but are very similar to BNT162b2 (Comirnaty), a COVID-19 RNA vaccine approved for use in the US and in many countries. For Cohort 1, this study included participants who were: * 18 through 55 years of age * have received 1 booster dose of a US-authorized COVID-19 vaccine, with the last dose being 90 or more days before Visit 1 of this study. All participants in Cohort 1 will receive 1 of the 2 study vaccines at a 30 microgram dose: BNT162b5 Bivalent (WT/OMI BA.2) or BNT162b2 Bivalent (WT/OMI BA.1). For Cohort 2, this study included participants who were: * 12 years of age and older * have received 3 prior doses of 30 micrograms BNT162b2, with the last dose being 150 to 365 days before Visit 1 of this study. Participants 12 through 17 years of age will receive BNT162b2 Bivalent (WT/OMI BA.4/BA.5) 30 micrograms. Participants 18 years and older will receive BNT162b2 Bivalent (WT/OMI BA.4/BA.5) at either a 30 microgram or a 60 microgram dose. For Cohort 3, this study included participants who were: * 18 years of age and older * have received 3 prior doses of 30 micrograms BNT162b2, with the last dose being 150 to 365 days before Visit 1 of this study. * Participants will receive BNT162b2 Bivalent (WT/OMI BA.4/BA.5) 30 micrograms. For Cohort 4, this study is seeking participants who are: * 18 through 55 years of age * have received 3 or 4 prior doses of a US-authorized mRNA COVID-19 vaccine (and dose level), with the last dose being a US-authorized BA.4/BA.5-adapted bivalent vaccine and dose level at least 150 days before Visit 1 of this study. All participants in Cohort 4 will receive 1 of the 5 study vaccines at a 30 microgram dose: BNT162b2 Bivalent (Original/ OMI BA.4/BA.5), BNT162b5 Bivalent (Original/OMI BA.4/BA.5), BNT162b6 Bivalent (Original/OMI BA.4/BA.5), BNT162b7 Bivalent (Original/OMI BA.4/BA.5) or BNT162b7 Monovalent (OMI BA.4/BA.5).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
1,453
BNT162b5 Wild Type and BNT162b5 OMICRON \[B.1.1.529 sublineage BA.2\]
BNT162b2 Wild Type and BNT162b2 OMICRON \[B.1.1.529 sublineage BA.1\]
BNT162b2 Wild Type and BNT162b2 OMICRON \[B.1.1.529 sublineage BA.4/BA.5\]
BNT162b5 Wild Type and BNT162b5 OMICRON \[B.1.1.529 sublineage BA.4/BA.5\]
BNT162b6 Wild Type and BNT162b6 OMICRON \[B.1.1.529 sublineage BA.4/BA.5\]
BNT162b7 Wild Type and BNT162b7 OMICRON \[B.1.1.529 sublineage BA.4/BA.5\]
BNT162b7 OMICRON \[B.1.1.529 sublineage BA.4/BA.5\]
Anaheim Clinical Trials, LLC
Anaheim, California, United States
California Research Foundation
San Diego, California, United States
Bayview Research Group, LLC
Valley Village, California, United States
Diablo Clinical Research, Inc.
Walnut Creek, California, United States
Clinical Research Consulting
Milford, Connecticut, United States
Cohort 1: Percentage of Participants Reporting Local Reactions Within 7 Days After Study Vaccination
Local reactions were recorded by participants in an electronic diary (e-diary). Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild: greater than (\>) 2.0 to 5.0 centimeter (cm), moderate: \>5.0 to 10.0 cm, severe: \>10.0 cm, grade 4 (potentially life threatening): necrosis or exfoliative dermatitis (redness) and necrosis (swelling). Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfered with daily activity, severe: prevented daily activity and grade 4 (potentially life threatening): emergency room visit or hospitalization for severe pain. Grade 4 reactions were classified by the investigator or medically qualified person. Local reactions reported as adverse events (AEs) in the case report form within 7 days after the study vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 1: Percentage of Participants Reporting Systemic Events Within 7 Days After Study Vaccination
Systemic events were recorded by participants in an e-diary. Fever was oral temperature greater than or equal to (\>=) 38 degree Celsius (deg C) and categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C, \>38.9 to 40.0 deg C and \>40.0 deg C. Fatigue, headache, chills, new or worsened muscle pain and new or worsened joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 hours (h), moderate: \>2 times in 24h and severe: required intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h. For all systemic events except fever, Grade 4= emergency room visit or hospitalization. Grade 4 events were classified by the investigator/medically qualified person. Systemic events reported as AEs in the CRF within 7 days after vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 1: Percentage of Participants With Adverse Events (AEs) From Study Vaccination Through 1 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. Results excluded local reactions and systemic events data.
Time frame: From study vaccination on Day 1 through 1 month after study vaccination
Cohort 1: Percentage of Participants With Serious Adverse Events (SAEs) From Study Vaccination Through 6 Months After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was an AE that resulted in death, was life-threatening, resulted in persistent disability/incapacity; constituted a congenital anomaly/birth defect; was important medical event, medical event was judged by investigator; required inpatient hospitalization or prolongation of existing hospitalization.
Time frame: From study vaccination on Day 1 through 6 months after study vaccination
Cohort 1: Geometric Mean Titer (GMT) of SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain Neutralizing Titers (NTs) at Baseline- Participants Without Evidence of Infection
GMTs and the corresponding 2-sided confidence intervals (CIs) were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). Assay results below the lower limit of quantification (LLOQ) were set to 0.5\*LLOQ.
Time frame: At baseline (before study vaccination)
Cohort 1: GMT of SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain NTs at Baseline- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution).
Time frame: At baseline (before study vaccination)
Cohort 1: GMT of SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain NTs at 1 Month After Study Vaccination- Participants Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). Assay results below the LLOQ were set to 0.5\*LLOQ.
Time frame: 1 month after the study vaccination
Cohort 1: GMT of SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain NTs at 1 Month After Study Vaccination- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). Assay results below the LLOQ were set to 0.5\*LLOQ.
Time frame: 1 month after the study vaccination
Cohort 1: Geometric Mean Fold Rise (GMFR) of SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain- NTs From Before the Study Vaccination to 1 Month After the Study Vaccination- Participants Without Evidence of Infection
GMFR from before study vaccination to 1 month after study vaccination for each strain-specific neutralizing titer was reported in this endpoint. GMFRs and 2-sided 95% CIs were calculated by exponentiating mean logarithm of fold rises and corresponding CIs (based on student-t distribution). Assay results below lower limit of quantitation (LLOQ) were set to 0.5\*LLOQ in analysis.
Time frame: From before the study vaccination to 1 month after the study vaccination
Cohort 1: GMFR of SARS-CoV-2 Omicron Strain (BA.1 and BA2) and Reference Strain- NTs From Before the Study Vaccination to 1 Month After the Study Vaccination- Participants With or Without Evidence of Infection
GMFR from before study vaccination to 1 month after study vaccination for each strain-specific neutralizing titer was reported in this endpoint. GMFRs and 2-sided 95% CIs were calculated by exponentiating mean logarithm of fold rises and corresponding CIs (based on student-t distribution). Assay results below LLOQ were set to 0.5\*LLOQ in analysis.
Time frame: From before the study vaccination to 1 month after the study vaccination
Cohort 1: Percentage of Participants With Seroresponse to SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain- NTs at 1 Month After Study Vaccination- Participants Without Evidence of Infection
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse.
Time frame: 1 month after the study vaccination
Cohort 1: Percentage of Participants With Seroresponse to SARS-CoV-2 Omicron Strain (BA.1 and BA.2) and Reference Strain- NTs at 1 Month After Study Vaccination- Participants With or Without Evidence of Infection
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse.
Time frame: 1 month after the study vaccination
Cohort 2: Percentage of Participants Reporting Local Reactions Within 7 Days After Study Vaccination
Local reactions were recorded by participants in an e-diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild: \> 2.0 to 5.0 cm, moderate: \>5.0 to 10.0 cm, severe: \>10.0 cm, grade 4 (potentially life threatening): necrosis or exfoliative dermatitis (redness) and necrosis (swelling). Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfered with daily activity, severe: prevented daily activity and grade 4 (potentially life threatening): emergency room visit or hospitalization for severe pain. Grade 4 reactions were classified by the investigator or medically qualified person. Local reactions reported as AEs in the case report form within 7 days after the study vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 2: Percentage of Participants Reporting Systemic Events Within 7 Days After Study Vaccination
Systemic events were recorded by participants in an e-diary. Fever was oral temperature \>= 38 deg C and categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C, \>38.9 to 40.0 deg C and \>40.0 deg C. Fatigue, headache, chills, new or worsened muscle pain and new or worsened joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24h, moderate: \>2 times in 24h and severe: required intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h. For all systemic events except fever, Grade 4= emergency room visit or hospitalization. Grade 4 events were classified by the investigator or medically qualified person. Systemic events reported as AEs in the CRF within 7 days after vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 2: Percentage of Participants With AEs From Study Vaccination Through 1 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. Results excluded local reactions and systemic events data.
Time frame: From study vaccination through 1 month after study vaccination
Cohort 2: Percentage of Participants With SAEs From Study Vaccination Through 6 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was an AE that resulted in death, was life-threatening, resulted in persistent disability/incapacity; constituted a congenital anomaly/birth defect; was important medical event; required inpatient hospitalization or prolongation of existing hospitalization.
Time frame: From study vaccination through 6 months after study vaccination
Cohort 2 (Group 2 and 4) + Cohort 3 (Group 1 and Group 2): Percentage of Participants Reporting Local Reactions Within 7 Days After Study Vaccination
Local reactions were recorded by participants in an e-diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild: \>2.0 to 5.0 cm, moderate: \>5.0 to 10.0 cm, severe: \>10.0 cm, grade 4 (potentially life threatening): necrosis or exfoliative dermatitis (redness) and necrosis (swelling). Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfered with daily activity, severe: prevented daily activity and grade 4 (potentially life threatening): emergency room visit or hospitalization for severe pain. Grade 4 reactions were classified by the investigator or medically qualified person. Local reactions reported as AEs in the case report form within 7 days after the study vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 2 (Group 2 and 4) + Cohort 3 (Group 1 and Group 2): Percentage of Participants Reporting Systemic Events Within 7 Days After Study Vaccination
Systemic events were recorded by participants in an e-diary. Fever was oral temperature \>= 38 deg C and categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C, \>38.9 to 40.0 deg C and \>40.0 deg C. Fatigue, headache, chills, new or worsened muscle pain and new or worsened joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24 h, moderate: \>2 times in 24h and severe: required intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h. For all systemic events except fever, Grade 4= emergency room visit or hospitalization. Grade 4 events were classified by the investigator/medically qualified person. Systemic events reported as AEs in the CRF within 7 days after vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 2 (Group 2 and 4) + Cohort 3 (Group 1 and Group 2): Percentage of Participants With AEs From Study Vaccination Through 1 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. Results excluded local reactions and systemic events data.
Time frame: From study vaccination through 1 month after study vaccination
Cohort 2 (Group 2 and 4) + Cohort 3 (Group 1 and Group 2): Percentage of Participants With SAEs From Study Vaccination Through 6 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was an AE that resulted in death, was life-threatening, resulted in persistent disability/incapacity; constituted a congenital anomaly/birth defect; was important medical event; required inpatient hospitalization or prolongation of existing hospitalization.
Time frame: From study vaccination through 6 months after study vaccination
GMR of Omicron (BA.4/BA.5)- NT of BNT162b2 Bivalent [WT/ OMI BA.4/ BA.5] 30 mcg Cohort 2 (Group 4)/ Cohort 3 (Group 2) Combined in C4591044 Compared to NT of BNT162b2 30 mcg in C4591031 [NCT04955626]- 1 Month After Vaccination Among Participants >55 Years
Model based GMT of OMI BA.4/BA.5 NTs induced by BNT162b2 Bivalent 30mcg groups of study C4591044 Cohort 2/3 combined and BNT162b2 30mcg of study C4591031 \[NCT04955626\] Substudy E among participants \>55 years are reported as descriptive data. GMTs and 95% CIs were calculated by exponentiating least square (LS) means and corresponding CI based on analysis of logarithmically transformed NT using a linear regression model with terms of baseline NT (log scale) and vaccine group. Assay results below LLOQ were set to 0.5\*LLOQ. Model based geometric mean ratio (GMR) are reported in statistical section: OMI BA.4/BA.5 NTs induced 1 month post BNT162b2 Bivalent vaccination in study C4591044 to 1 month post BNT162b2 vaccination in study C4591031 \[NCT04955626\] among participants \>55 years. Outcome measure was planned per protocol to be analyzed in participants of Cohort 2 (Group 4) + Cohort 3 (Group 2) of C4591044 and BNT162b2 experienced participants of study C4591031 \[NCT04955626\] (control arm).
Time frame: 1 month after study vaccination
Difference in Percentage of Participants With Seroresponse to OMI BA.4/BA.5 for BNT162b2 Bivalent[WT/OMI BA.4/BA.5]30mcg Cohort2(Group4)/Cohort3(Group2)Combined in C4591044 and BNT162b2 30mcg in C4591031-1 Month After Vaccination in Participants >55 Years
Seroresponse: achieving \>=4-fold rise in NTs from baseline (before study vaccination). If baseline measurement was below LLOQ, postvaccination measure of \>= 4\*LLOQ was considered seroresponse. Percentage of participants with seroresponse to OMI BA.4/BA.5 for BNT162b2 Bivalent 30 mcg in Study C4591044 \[NCT05472038\] Cohort 2/3 combined and BNT162b2 30 mcg in Study C4591031 \[NCT04955626\] Substudy E among participants \>55 years of age are presented as descriptive data. Adjusted difference in seroresponse rate to OMI BA.4/BA.5 between BNT162b2 Bivalent \[WT/OMI BA.4/BA.5\] 30 mcg 1 month after vaccination in study C4591044 and 1 month after BNT162b2 vaccination in study C4591031 \[NCT04955626\] among participants \>55 years of age is reported in statistical section. Outcome measure was planned per protocol to be analyzed in participants from Cohort 2 (Group 4) + Cohort 3 (Group 2) and control arm of BNT162b2 experienced participants \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
Time frame: 1 month after study vaccination
GMR of Omicron (BA.4/BA.5)- NTs of BNT162b2 Bivalent[WT/OMI BA.4/BA.5]30mcg Cohort2 (Group2)/Cohort3 (Group1)Combined for 18-55 Years Compared to BNT162b2 30mcg Cohort2 (Group4)/Cohort3 (Group2)Combined for >55 Years- 1 Month After Vaccination in C4591044
Model based GMT of OMI BA.4/BA.5 NTs induced by BNT162b2 Bivalent 30 mcg groups of study C4591044 \[NCT05472038\] Cohort 2/3 combined in participants 18-55 years of age compared to participants \>55 years of age are presented as descriptive data. GMTs and 2-sided 95% CIs were calculated by exponentiating LS means and corresponding CIs based on analysis of logarithmically transformed NT using a linear regression model with terms of baseline NT (log scale) and vaccine group. Assay results below LLOQ were set to 0.5\*LLOQ. Model based GMR: OMI BA.4/BA.5 NTs induced 1 month after BNT162b2 Bivalent vaccination in study C4591044 among participants 18-55 years of age compared to participants \>55 years of age is reported in statistical section. The outcome measure was planned per protocol to be analyzed in participants combined from Cohort 2 (Group 2) + Cohort 3 (Group 1) and Cohort 2 (Group 4) + Cohort 3 (Group 2).
Time frame: 1 month after study vaccination
Difference in Percentage of Participants With Seroresponse to OMI BA.4/BA.5 of BNT162b2 Bivalent [WT/OMI BA.4/BA.5] 30 mcg Cohort2 (Group2)/Cohort3 (Group1) 18-55 Years and Cohort2 (Group4)/Cohort3 (Group2) >55 Years- 1 Month After Vaccination in C4591044
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse. Percentage of participants with seroresponse to OMI BA.4/BA.5 for BNT162b2 Bivalent 30 mcg in Study C4591044 \[NCT05472038\] Cohort 2/3 combined in participants 18-55 years of age compared to participants \>55 years of age are presented as descriptive data. Adjusted difference in seroresponse rate to OMI BA.4/BA.5 between BNT162b2 Bivalent \[WT/OMI BA.4/BA.5\] 30 mcg 1 month after vaccination in study C4591044 in participants 18-55 years of age compared to participants \>55 years of age is reported in statistical section. The outcome measure was planned per protocol to be analyzed in participants combined from Cohort 2 (Group 2) + Cohort 3 (Group 1) and Cohort 2 (Group 4) + Cohort 3 (Group 2).
Time frame: 1 month after study vaccination
Cohort 2: GMT of SARS-CoV-2 Omicron Strain (BA.1 and BA.4/BA.5) and Reference Strain NTs at Baseline- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 and control arms of BNT162b2 Bivalent (WT/OMI BA.1) experienced participants from study C4591031 \[NCT04955626\] Substudy E.
Time frame: At baseline (before study vaccination)
Cohort 2: GMT of SARS-CoV-2 Omicron Strain (BA.1 and BA.4/BA.5) and Reference Strain NTs at 1 Month- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 and control arms of BNT162b2 experienced participants from study C4591031 \[NCT04955626\] Substudy E.
Time frame: 1 month after the study vaccination
Cohort 2: GMFR of SARS-CoV-2 Omicron Strain (BA.1 and BA.4/BA.5) and Reference Strain- NTs From Before the Study Vaccination to 1 Month After the Study Vaccination- Participants With or Without Evidence of Infection
GMFR from before the study vaccination to 1 month after the study vaccination for each strain-specific neutralizing titer was reported in this outcome measure. GMFRs and 2-sided 95% CIs were calculated by exponentiating the mean logarithm of fold rises and the corresponding CIs (based on the student-t distribution). Assay results below the LLOQ were set to 0.5\*LLOQ in the analysis. This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 and control arms of BNT162b2 experienced participants from study C4591031 \[NCT04955626\] Substudy E.
Time frame: From before the study vaccination to 1 month after the study vaccination
Cohort 2: Percentage of Participants With Seroresponse to SARS-CoV-2 Omicron Strain (BA.1 and BA.4/BA.5) and Reference Strain- NTs at 1 Month After Study Vaccination- Participants With or Without Evidence of Infection
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse. Percentage of participants with seroresponse to OMI BA.4/BA.5 for BNT162b2 Bivalent 30 and 60 mcg in Study C4591044 \[NCT05472038\] Cohort 2 and BNT162b2 30 mcg in Study C4591031 \[NCT04955626\] Substudy E are presented as descriptive data. This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 and control arms of BNT162b2 experienced participants 18-55 years of age and \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
Time frame: 1 month after the study vaccination
Cohort 4: Percentage of Participants Reporting Local Reactions Within 7 Days After Study Vaccination
Local reactions were recorded by participants in an e-diary. Local reactions included redness, swelling and pain at injection site. Redness and swelling were graded as mild: \>2.0 to 5.0 cm, moderate: \>5.0 to 10.0 cm, severe: \>10.0 cm, grade 4 (potentially life threatening): necrosis or exfoliative dermatitis (redness) and necrosis (swelling). Pain at injection site was graded as mild: did not interfere with daily activity, moderate: interfered with daily activity, severe: prevented daily activity and grade 4 (potentially life threatening): emergency room visit or hospitalization for severe pain. Grade 4 reactions were classified by the investigator or medically qualified person. Local reactions reported as AEs in the case report form within 7 days after the study vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 4: Percentage of Participants Reporting Systemic Events Within 7 Days After Study Vaccination
Systemic events were recorded by participants in an e-diary. Fever was oral temperature \>= 38 deg C and categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C, \>38.9 to 40.0 deg C and \>40.0 deg C. Fatigue, headache, chills, new or worsened muscle pain and new or worsened joint pain were graded as mild: did not interfere with activity, moderate: some interference with activity and severe: prevented daily routine activity. Vomiting was graded as mild: 1 to 2 times in 24h, moderate: \>2 times in 24h and severe: required intravenous hydration. Diarrhea was graded as mild: 2 to 3 loose stools in 24h, moderate: 4 to 5 loose stools in 24h and severe: 6 or more loose stools in 24h. For all systemic events except fever, Grade 4= emergency room visit or hospitalization. Grade 4 events were classified by the investigator or medically qualified person. Systemic events reported as AEs in the CRF within 7 days after vaccination were also reported.
Time frame: From Day 1 to Day 7 after study vaccination
Cohort 4: Percentage of Participants With AEs From Study Vaccination Through 1 Month After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. Results excluded local reactions and systemic events data.
Time frame: From study vaccination through 1 month after study vaccination
Cohort 4: Percentage of Participants With SAEs From Study Vaccination Through 6 Months After Study Vaccination
An AE was any untoward medical occurrence in a participant temporally associated with the use of study intervention, whether or not considered related to the study intervention. An SAE was an AE that resulted in death, was life-threatening, resulted in persistent disability/incapacity; constituted a congenital anomaly/birth defect; was important medical event; required inpatient hospitalization or prolongation of existing hospitalization.
Time frame: From study vaccination through 6 months after study vaccination
Cohort 4: GMT of SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain NTs at Baseline- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution).
Time frame: At baseline (before study vaccination)
Cohort 4: GMT of SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain NTs at 1 Month After Study Vaccination- Participants With or Without Evidence of Infection
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution).
Time frame: 1 month after the study vaccination
Cohort 4: GMFR of SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain- NTs From Before the Study Vaccination to 1 Month After the Study Vaccination- Participants With or Without Evidence of Infection
GMFR from before study vaccination to 1 month after study vaccination for each strain-specific neutralizing titer was reported in this endpoint. GMFRs and 2-sided 95% CIs were calculated by exponentiating mean logarithm of fold rises and corresponding CIs (based on student-t distribution). Assay results below LLOQ were set to 0.5\*LLOQ in analysis.
Time frame: From before the study vaccination to 1 month after study vaccination
Cohort 4: Percentage of Participants With Seroresponse to SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain- NTs at 1 Month After Study Vaccination- Participants With or Without Evidence of Infection
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse.
Time frame: 1 month after study vaccination
GMR of the Reference-Strain- NTs of BNT162b2 [WT/OMI BA.4/BA.5] 30mcg Cohort 2 (Group 4)/ Cohort 3 (Group 2) Combined in C4591044 Compared to NT of BNT162b2 30mcg in C4591031 [NCT04955626] >55 Years of Age- 1 Month After Vaccination
Model based GMT of reference strain NTs induced by BNT162b2 Bivalent 30mcg groups of study C4591044 \[NCT05472038\] Cohort 2/3 combined and BNT162b2 30 mcg of study C4591031 \[NCT04955626\] Substudy E among participants \>55 years of age presented as descriptive data. GMTs, 2-sided 95% CIs calculated by exponentiating LS means, corresponding CIs based on analysis of logarithmically transformed NT using linear regression model with terms of baseline NT (log scale), vaccine group. Assay results below LLOQ set to 0.5\*LLOQ. Model based GMR: OMI BA.4/BA.5 NTs induced 1 month after BNT162b2 Bivalent vaccination in study C4591044 to 1 month after BNT162b2 vaccination in study C4591031 \[NCT04955626\] among participants \>55 years of age reported in statistical section. Outcome measure was planned per protocol to be analyzed in participants from Cohort 2 (Group 4) + Cohort 3 (Group 2) and control arm of BNT162b2 experienced participants \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
Time frame: 1 month after study vaccination
Cohort 2 (Group 2) + Cohort 3 (Group 1) Combined and Cohort 2 (Group 4) + Cohort 3 (Group 2) Combined: GMT of Omicron BA.4/BA.5 and Reference Strain NT at Baseline and 1 Month After the Study Vaccination
GMTs and the corresponding 2-sided CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding CIs (based on student's t distribution). This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 (Group 2) + Cohort 3 (Group 1), Cohort 2 (Group 4) + Cohort 3 (Group 2) and control arm of BNT162b2 experienced participants \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
Time frame: At baseline and 1 month after study vaccination
Cohort 2 (Group 2) + Cohort 3 (Group 1) Combined and Cohort 2 (Group 4) + Cohort 3 (Group 2) Combined: GMFR of SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain- NTs From Before the Study Vaccination to 1 Month After the Study Vaccination
GMFRs and 2-sided 95% CIs were calculated by exponentiating the mean logarithm of fold rises and the corresponding CIs (based on the student t distribution). Assay results below the LLOQ were set to 0.5\*LLOQ in the analysis. GMFR from before the study vaccination to 1 month after study vaccination for Omicron BA.4/BA.5 and reference strain neutralizing titer was reported in this outcome measure. This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 (Group 2) + Cohort 3 (Group 1), Cohort 2 (Group 4) + Cohort 3 (Group 2) and control arm of BNT162b2 experienced participants \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
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Research Centers of America ( Hollywood )
Hollywood, Florida, United States
Clinical Neuroscience Solutions, Inc. dba CNS Healthcare
Jacksonville, Florida, United States
Acevedo Clinical Research Associates
Miami, Florida, United States
Clinical Research Atlanta
Stockbridge, Georgia, United States
East-West Medical Research Institute
Honolulu, Hawaii, United States
...and 21 more locations
Time frame: From before the study vaccination to 1 month after study vaccination
Cohort 2 (Group 2) + Cohort 3 (Group 1) Combined and Cohort 2 (Group 4) + Cohort 3 (Group 2) Combined: Percentages of Participants With Seroresponse to SARS-CoV-2 Omicron Strain (BA.4/BA.5) and Reference Strain- NTs at 1 Month After the Study Vaccination
Seroresponse was defined as achieving \>= 4-fold rise in NTs from baseline (before the study vaccination). If the baseline measurement was below the LLOQ, the postvaccination measure of \>= 4\*LLOQ was considered a seroresponse. Percentage of participants with seroresponse to OMI BA.4/BA.5 for BNT162b2 Bivalent 30 mcg in Study C4591044 \[NCT05472038\] Cohort 2/3 combined and BNT162b2 30 mcg in Study C4591031 \[NCT04955626\] Substudy E among participants \>55 years of age are presented as descriptive data. This outcome measure was planned per protocol to be analyzed in participants from Cohort 2 (Group 2) + Cohort 3 (Group 1), Cohort 2 (Group 4) + Cohort 3 (Group 2) and control arm of BNT162b2 experienced participants \>55 years of age from study C4591031 \[NCT04955626\] Substudy E.
Time frame: 1 month after the study vaccination