Trial Outcomes & Findings for Panblok H7 Vaccine Adjuvanted With AS03 or MF59 (NCT NCT03283319)

NCT ID: NCT03283319

Last Updated: 2020-05-06

Results Overview

Count of participants who experienced at least one of the following during at least one of the time frames specified: Solicited local reactions at the injection site: erythema/redness, induration/swelling, and pain

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

366 participants

Primary outcome timeframe

Day 1-8, Day 29-36 (within 8 days of each vaccination, inclusive of the vaccination day)

Results posted on

2020-05-06

Participant Flow

Participant milestones

Participant milestones
Measure
3.75 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
3.75 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus MF59
7.5 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus MF59
15 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus MF59
Overall Study
STARTED
62
60
62
61
60
61
Overall Study
COMPLETED
55
54
55
54
56
57
Overall Study
NOT COMPLETED
7
6
7
7
4
4

Reasons for withdrawal

Reasons for withdrawal
Measure
3.75 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
3.75 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus MF59
7.5 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus MF59
15 µg Panblok H7 Plus MF59
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus MF59
Overall Study
Lost to Follow-up
5
4
5
5
4
3
Overall Study
Withdrawal by Subject
2
2
2
1
0
1
Overall Study
BARDA regulatory agency or IRB decision
0
0
0
1
0
0

Baseline Characteristics

Panblok H7 Vaccine Adjuvanted With AS03 or MF59

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
3.75 µg Panblok H7 Plus MF59
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus MF59
7.5 µg Panblok H7 Plus MF59
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus MF59
15 µg Panblok H7 Plus MF59
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus MF59
Total
n=366 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
2 Participants
n=206 Participants
1 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
3 Participants
n=3 Participants
Age, Categorical
Between 18 and 65 years
62 Participants
n=99 Participants
60 Participants
n=107 Participants
60 Participants
n=206 Participants
60 Participants
n=7 Participants
60 Participants
n=31 Participants
61 Participants
n=30 Participants
363 Participants
n=3 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
Age, Continuous
34.8 years
STANDARD_DEVIATION 7.92 • n=99 Participants
34.3 years
STANDARD_DEVIATION 9.14 • n=107 Participants
35.8 years
STANDARD_DEVIATION 9.29 • n=206 Participants
35 years
STANDARD_DEVIATION 9.58 • n=7 Participants
37.1 years
STANDARD_DEVIATION 7.66 • n=31 Participants
35.8 years
STANDARD_DEVIATION 8.53 • n=30 Participants
35.4 years
STANDARD_DEVIATION 8.65 • n=3 Participants
Sex/Gender, Customized
Female
32 Participants
n=99 Participants
31 Participants
n=107 Participants
30 Participants
n=206 Participants
37 Participants
n=7 Participants
37 Participants
n=31 Participants
35 Participants
n=30 Participants
202 Participants
n=3 Participants
Sex/Gender, Customized
Male
30 Participants
n=99 Participants
29 Participants
n=107 Participants
32 Participants
n=206 Participants
24 Participants
n=7 Participants
23 Participants
n=31 Participants
26 Participants
n=30 Participants
164 Participants
n=3 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=99 Participants
6 Participants
n=107 Participants
7 Participants
n=206 Participants
1 Participants
n=7 Participants
2 Participants
n=31 Participants
4 Participants
n=30 Participants
22 Participants
n=3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
60 Participants
n=99 Participants
54 Participants
n=107 Participants
55 Participants
n=206 Participants
60 Participants
n=7 Participants
58 Participants
n=31 Participants
57 Participants
n=30 Participants
344 Participants
n=3 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
2 Participants
n=206 Participants
0 Participants
n=7 Participants
2 Participants
n=31 Participants
0 Participants
n=30 Participants
4 Participants
n=3 Participants
Race (NIH/OMB)
Asian
1 Participants
n=99 Participants
1 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
1 Participants
n=31 Participants
1 Participants
n=30 Participants
4 Participants
n=3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
Race (NIH/OMB)
Black or African American
8 Participants
n=99 Participants
17 Participants
n=107 Participants
8 Participants
n=206 Participants
9 Participants
n=7 Participants
13 Participants
n=31 Participants
5 Participants
n=30 Participants
60 Participants
n=3 Participants
Race (NIH/OMB)
White
50 Participants
n=99 Participants
42 Participants
n=107 Participants
52 Participants
n=206 Participants
51 Participants
n=7 Participants
43 Participants
n=31 Participants
53 Participants
n=30 Participants
291 Participants
n=3 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
1 Participants
n=7 Participants
1 Participants
n=31 Participants
2 Participants
n=30 Participants
7 Participants
n=3 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
0 Participants
n=31 Participants
0 Participants
n=30 Participants
0 Participants
n=3 Participants
Region of Enrollment
United States
62 participants
n=99 Participants
60 participants
n=107 Participants
62 participants
n=206 Participants
61 participants
n=7 Participants
60 participants
n=31 Participants
61 participants
n=30 Participants
366 participants
n=3 Participants

PRIMARY outcome

Timeframe: Day 1-8, Day 29-36 (within 8 days of each vaccination, inclusive of the vaccination day)

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one of the following during at least one of the time frames specified: Solicited local reactions at the injection site: erythema/redness, induration/swelling, and pain

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Solicited Local Reactogenicity Symptoms for Participants Given Adjuvant AS03
42 Participants
44 Participants
36 Participants

PRIMARY outcome

Timeframe: Day 1-8, Day 29-36 (within 8 days of each vaccination, inclusive of the vaccination day)

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one of the following during at least one of the time frames specified: Solicited systemic reactions include fever, myalgia (muscle pain), arthralgia (joint pain), fatigue, headache, nausea, vomiting, diarrhea, and chills.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Solicited Systemic Reactogenicity Symptoms for Participants Given Adjuvant AS03
25 Participants
28 Participants
27 Participants

PRIMARY outcome

Timeframe: Day 1-8, Day 29-36 (within 8 days of each vaccination, inclusive of the vaccination day)

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one of the following during at least one of the time frames specified: Solicited local reactions at the injection site: erythema/redness, induration/swelling, and pain

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Solicited Local Reactogenicity Symptoms for Participants Given Adjuvant MF59
37 Participants
30 Participants
29 Participants

PRIMARY outcome

Timeframe: Day 1-8, Day 29-36 (within 8 days of each vaccination, inclusive of the vaccination day)

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one of the following during at least one of the time frames specified: Solicited systemic reactions include fever, myalgia (muscle pain), arthralgia (joint pain), fatigue, headache, nausea, vomiting, diarrhea, and chills.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Solicited Systemic Reactogenicity Symptoms for Participants Given Adjuvant MF59
27 Participants
24 Participants
28 Participants

PRIMARY outcome

Timeframe: Day 50

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
53 Participants
53 Participants
56 Participants

PRIMARY outcome

Timeframe: Day 50

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
47 Participants
47 Participants
48 Participants

PRIMARY outcome

Timeframe: Day 50

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
48 Participants
52 Participants
55 Participants

PRIMARY outcome

Timeframe: Day 50

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
37 Participants
35 Participants
47 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one serious adverse event

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Serious Adverse Events (SAEs) for Participants Given Adjuvant AS03
3 Participants
1 Participants
3 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one serious adverse event

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Serious Adverse Events (SAEs) for Participants Given Adjuvant MF59
1 Participants
2 Participants
0 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one adverse event that requires a visit to medical personnel, including hospital, emergency room, urgent care clinic, or other visits to or from medical personnel for any reason occurring post-vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Medically Attended Adverse Events (MAAEs) for Participants Given Adjuvant AS03
11 Participants
8 Participants
13 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one adverse event that requires a visit to medical personnel, including hospital, emergency room, urgent care clinic, or other visits to or from medical personnel for any reason occurring post-vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Medically Attended Adverse Events (MAAEs) for Participants Given Adjuvant MF59
9 Participants
16 Participants
10 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one medical condition that was potentially immune mediated occurring post-vaccination

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Potentially Immune Mediated Medical Conditions (PIMMCs) for Participants Given Adjuvant AS03
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 394

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one medical condition that was potentially immune mediated occurring post-vaccination

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Potentially Immune Mediated Medical Conditions (PIMMCs) for Participants Given Adjuvant MF59
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 53, which is the upper window of the Day 50 visit

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one unsolicited adverse event (i.e. adverse events not included in the solicited local and systemic adverse event list nor considered a serious AE, MAAE or PIMMC ) that occur post-vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=62 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Unsolicited Adverse Events for Participants Given Adjuvant AS03
24 Participants
25 Participants
22 Participants

SECONDARY outcome

Timeframe: Day 1 through Day 50

Population: Safety population includes all participants who received any amount of study vaccination.

Count of participants who experienced at least one unsolicited adverse event (i.e. adverse events not included in the solicited local and systemic adverse event list nor considered a serious AE, MAAE or PIMMC) that occur post-vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=60 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=61 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Treatment-emergent Unsolicited Adverse Events for Participants Given Adjuvant MF59
24 Participants
24 Participants
21 Participants

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
55 Participants
55 Participants
58 Participants

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
38 Participants
36 Participants
47 Participants

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
50 Participants
54 Participants
57 Participants

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Screening
5.1 Titers
Interval 5.0 to 5.2
5.3 Titers
Interval 5.0 to 5.7
5.5 Titers
Interval 5.1 to 5.9
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
8.7 Titers
Interval 7.0 to 10.8
12.3 Titers
Interval 9.4 to 16.0
12.4 Titers
Interval 9.2 to 16.8
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
297.1 Titers
Interval 216.5 to 407.7
438.3 Titers
Interval 329.4 to 583.0
505.9 Titers
Interval 399.7 to 640.2
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
58.8 Titers
Interval 43.9 to 78.8
73 Titers
Interval 55.5 to 96.0
90 Titers
Interval 70.2 to 115.3
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
21.2 Titers
Interval 15.6 to 28.8
21.6 Titers
Interval 16.2 to 28.7
26 Titers
Interval 18.9 to 35.7

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
48 Participants
48 Participants
48 Participants

SECONDARY outcome

Timeframe: Days 29, 50, 121, and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on MN antibody titers, defined as either a prevaccination MN titer \<1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a minimum 4 fold rise in postvaccination MN titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
0 Participants
0 Participants
1 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
51 Participants
50 Participants
54 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
34 Participants
40 Participants
44 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
22 Participants
25 Participants
28 Participants

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Screening
5.1 Titers
Interval 5.0 to 5.2
5.5 Titers
Interval 5.0 to 6.1
5.1 Titers
Interval 5.0 to 5.2
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
6.1 Titers
Interval 5.1 to 7.3
6.6 Titers
Interval 5.7 to 7.7
6.4 Titers
Interval 5.6 to 7.3
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
76.3 Titers
Interval 55.9 to 104.0
106.5 Titers
Interval 74.1 to 153.0
130.6 Titers
Interval 93.1 to 183.2
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
18.1 Titers
Interval 13.6 to 24.1
20.7 Titers
Interval 14.9 to 28.8
33.2 Titers
Interval 25.1 to 43.9
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
6.8 Titers
Interval 6.0 to 7.7
8.9 Titers
Interval 7.1 to 11.1
11.4 Titers
Interval 8.7 to 15.0

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
75.4 Titers
Interval 55.6 to 102.4
103 Titers
Interval 72.1 to 147.2
124.3 Titers
Interval 87.9 to 175.8

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Screening
5 Titers
Interval 5.0 to 5.0
5.2 Titers
Interval 4.9 to 5.6
5.2 Titers
Interval 5.0 to 5.4
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
5.9 Titers
Interval 5.2 to 6.7
8.3 Titers
Interval 6.7 to 10.3
8.4 Titers
Interval 6.6 to 10.7
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
170.2 Titers
Interval 119.9 to 241.7
302 Titers
Interval 218.9 to 416.7
316.7 Titers
Interval 246.2 to 407.4
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
45.2 Titers
Interval 33.4 to 61.1
57.7 Titers
Interval 42.5 to 78.4
69.7 Titers
Interval 53.1 to 91.6
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
25 Titers
Interval 18.3 to 34.2
28.1 Titers
Interval 20.1 to 39.2
32.9 Titers
Interval 24.4 to 44.4

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
163.8 Titers
Interval 115.7 to 231.9
274.9 Titers
Interval 195.3 to 386.9
313.1 Titers
Interval 243.1 to 403.1

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Screening
5.1 Titers
Interval 5.0 to 5.2
5.1 Titers
Interval 5.0 to 5.2
5.3 Titers
Interval 4.8 to 5.8
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
5.7 Titers
Interval 5.1 to 6.3
5.6 Titers
Interval 5.1 to 6.1
5.6 Titers
Interval 5.2 to 6.1
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
47.6 Titers
Interval 33.7 to 67.1
60.5 Titers
Interval 40.5 to 90.4
74.5 Titers
Interval 53.3 to 104.0
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
13 Titers
Interval 10.2 to 16.6
15.1 Titers
Interval 11.2 to 20.4
20.9 Titers
Interval 15.6 to 27.8
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
7.8 Titers
Interval 6.7 to 9.1
11.3 Titers
Interval 8.6 to 14.8
13.6 Titers
Interval 10.1 to 18.2

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
47.4 Titers
Interval 33.8 to 66.5
58.6 Titers
Interval 39.4 to 87.2
71.1 Titers
Interval 50.6 to 100.0

SECONDARY outcome

Timeframe: Screening, Day 29, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Screening
0 Participants
0 Participants
0 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
7 Participants
10 Participants
13 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
40 Participants
45 Participants
47 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
21 Participants
19 Participants
23 Participants

SECONDARY outcome

Timeframe: Screening, Day 29, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Screening
0 Participants
0 Participants
0 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
1 Participants
3 Participants
0 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
19 Participants
24 Participants
34 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
1 Participants
4 Participants
7 Participants

SECONDARY outcome

Timeframe: Screening, Day 29, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Screening
0 Participants
0 Participants
0 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
2 Participants
5 Participants
4 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
37 Participants
40 Participants
45 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
22 Participants
22 Participants
26 Participants

SECONDARY outcome

Timeframe: Screening, Day 29, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants achieving seroprotection, defined as a serum HAI antibody titer \>= 1:40 against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine. A titer of 1:40 or greater is considered to be a sufficient amount of antibody to avoid influenza infection in half of exposed individuals.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Screening
0 Participants
0 Participants
1 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
1 Participants
0 Participants
0 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
10 Participants
15 Participants
22 Participants
Seroprotection Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
1 Participants
8 Participants
11 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on HAI antibody titers, defined as either a prevaccination HAI titer \<1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a minimum 4 fold rise in postvaccination HAI titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
7 Participants
10 Participants
12 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
53 Participants
53 Participants
56 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
40 Participants
45 Participants
47 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
21 Participants
19 Participants
23 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on HAI antibody titers, defined as either a prevaccination HAI titer \<1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a minimum 4 fold rise in postvaccination HAI titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
1 Participants
2 Participants
0 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
47 Participants
47 Participants
48 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
19 Participants
23 Participants
34 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
1 Participants
4 Participants
7 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on HAI antibody titers, defined as either a prevaccination HAI titer \<1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a minimum 4 fold rise in postvaccination HAI titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
2 Participants
5 Participants
4 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
48 Participants
52 Participants
55 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
37 Participants
39 Participants
45 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
22 Participants
22 Participants
26 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on HAI antibody titers, defined as either a prevaccination HAI titer \<1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a minimum 4 fold rise in postvaccination HAI titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
1 Participants
0 Participants
0 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
37 Participants
35 Participants
47 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
10 Participants
15 Participants
21 Participants
Seroconversion Based on Serum Hemagglutination-inhibition (HAI) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
1 Participants
8 Participants
11 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on MN antibody titers, defined as either a prevaccination MN titer \<1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a minimum 4 fold rise in postvaccination MN titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
0 Participants
0 Participants
0 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
40 Participants
39 Participants
44 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
11 Participants
14 Participants
21 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Guangdong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
2 Participants
4 Participants
11 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on MN antibody titers, defined as either a prevaccination MN titer \<1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a minimum 4 fold rise in postvaccination MN titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
0 Participants
2 Participants
7 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
53 Participants
53 Participants
56 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
38 Participants
43 Participants
47 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
25 Participants
28 Participants
34 Participants

SECONDARY outcome

Timeframe: Day 29, Day 50, Day 121, Day 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

The percentage of participants obtaining seroconversion based on MN antibody titers, defined as either a prevaccination MN titer \<1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a minimum 4 fold rise in postvaccination MN titer. Seroconversion represents the minimum intended effect of vaccination.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
1 Participants
1 Participants
0 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
46 Participants
44 Participants
47 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
11 Participants
21 Participants
27 Participants
Seroconversion Based on Serum Microneutralization (MN) Antibody Titers Against Hong Kong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
3 Participants
6 Participants
15 Participants

SECONDARY outcome

Timeframe: Day 50

Population: The immunogenicity full analysis population (IFAP) includes all participants who were randomized, received at least one vaccination, and had determinate assay results at any post-vaccination visit. Only participants with non-missing Day 50 results are included in this analysis.

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=59 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Hemagglutination-inhibition (HAI) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
276.3 Titers
Interval 200.1 to 381.5
400.7 Titers
Interval 291.9 to 550.1
489.1 Titers
Interval 383.0 to 624.5

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum MN antibody titers against the H7 antigen (protein) contained in the vaccine. A higher MN titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Screening
5.0 Titers
Interval 5.0 to 5.0
5 Titers
Interval 5.0 to 5.0
5 Titers
Interval 5.0 to 5.0
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
5.3 Titers
Interval 5.0 to 5.5
6.2 Titers
Interval 5.6 to 6.9
6.3 Titers
Interval 5.5 to 7.2
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
201.2 Titers
Interval 147.4 to 274.6
274.3 Titers
Interval 197.4 to 381.2
286.3 Titers
Interval 218.1 to 375.7
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
51.4 Titers
Interval 40.8 to 64.7
58.1 Titers
Interval 44.6 to 75.6
66.6 Titers
Interval 53.4 to 83.1
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
29 Titers
Interval 22.2 to 38.0
29.7 Titers
Interval 22.7 to 38.8
34.4 Titers
Interval 27.6 to 42.9

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Screening
5.1 Titers
Interval 5.0 to 5.1
5 Titers
Interval 5.0 to 5.1
5 Titers
Interval 5.0 to 5.0
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
5.2 Titers
Interval 4.9 to 5.5
5 Titers
Interval 5.0 to 5.1
5.2 Titers
Interval 4.9 to 5.4
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
53 Titers
Interval 39.9 to 70.3
67.1 Titers
Interval 46.3 to 97.1
81.9 Titers
Interval 60.1 to 111.7
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
15.1 Titers
Interval 12.2 to 18.8
18.5 Titers
Interval 14.5 to 23.5
25.6 Titers
Interval 19.7 to 33.1
Serum Microneutralization (MN) Antibody Titers Against the Guangdong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
8.2 Titers
Interval 7.0 to 9.7
10.7 Titers
Interval 8.9 to 13.0
14 Titers
Interval 10.8 to 18.0

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=54 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=56 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Screening
5 Titers
Interval 5.0 to 5.1
5 Titers
Interval 5.0 to 5.0
5.2 Titers
Interval 4.9 to 5.4
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 4/Day 29
6.4 Titers
Interval 5.7 to 7.3
7.8 Titers
Interval 6.7 to 9.1
8.9 Titers
Interval 7.2 to 11.2
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 7/Day 50
256.1 Titers
Interval 190.3 to 344.6
326.2 Titers
Interval 238.1 to 446.9
394.9 Titers
Interval 303.8 to 513.4
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 8/Day 121
58.4 Titers
Interval 44.9 to 76.0
71.6 Titers
Interval 53.6 to 95.6
95.4 Titers
Interval 73.3 to 124.4
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant AS03
Visit 9/Day 212
31.5 Titers
Interval 23.7 to 41.9
34.4 Titers
Interval 26.1 to 45.4
41.1 Titers
Interval 32.0 to 52.7

SECONDARY outcome

Timeframe: Screening and Days 29, 50, 121 and 212

Population: Immunogenicity Per Protocol Population (IPPP) includes all participants who received a full dose of vaccine at Days 1 and 29 as assigned by randomization within protocol visit windows, had determinate assay results at Day 50 within protocol visit window, and had no major protocol deviations that may have an impact on immunogenicity assessments

Serum HAI antibody titers against the H7 antigen (protein) contained in the vaccine. A higher HAI titer means a better immune response to the vaccine.

Outcome measures

Outcome measures
Measure
3.75 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 µg Panblok H7 plus AS03
7.5 µg Panblok H7 Plus AS03
n=57 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 µg Panblok H7 plus AS03
15 µg Panblok H7 Plus AS03
n=58 Participants
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 µg Panblok H7 plus AS03
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 4/Day 29
5.8 Titers
Interval 5.2 to 6.5
6 Titers
Interval 5.3 to 6.7
5.9 Titers
Interval 5.4 to 6.4
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Screening
5.1 Titers
Interval 5.0 to 5.2
5.3 Titers
Interval 5.0 to 5.6
5.1 Titers
Interval 5.0 to 5.1
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 7/Day 50
67.3 Titers
Interval 51.4 to 88.0
87.1 Titers
Interval 59.8 to 126.9
113.8 Titers
Interval 80.4 to 161.1
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 8/Day 121
15.7 Titers
Interval 12.5 to 19.8
20 Titers
Interval 15.0 to 26.6
27.1 Titers
Interval 20.0 to 36.7
Serum Microneutralization (MN) Antibody Titers Against the Hong Kong Strain for Participants Given Adjuvant MF59
Visit 9/Day 212
8.7 Titers
Interval 7.3 to 10.5
11.5 Titers
Interval 9.2 to 14.4
15.2 Titers
Interval 11.6 to 19.9

Adverse Events

3.75 ug Panblok H7 Plus AS03

Serious events: 3 serious events
Other events: 48 other events
Deaths: 0 deaths

7.5 ug Panblok H7 Plus AS03

Serious events: 1 serious events
Other events: 47 other events
Deaths: 0 deaths

15 ug Panblok H7 Plus AS03

Serious events: 3 serious events
Other events: 40 other events
Deaths: 0 deaths

3.75 ug Panblok H7 Plus MF59

Serious events: 1 serious events
Other events: 47 other events
Deaths: 0 deaths

7.5 ug Panblok H7 Plus MF59

Serious events: 2 serious events
Other events: 40 other events
Deaths: 0 deaths

15 ug Panblok H7 Plus MF59

Serious events: 0 serious events
Other events: 42 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
3.75 ug Panblok H7 Plus AS03
n=62 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 ug Panblok H7 plus AS03
7.5 ug Panblok H7 Plus AS03
n=60 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 ug Panblok H7 adjuvanted with AS03
15 ug Panblok H7 Plus AS03
n=62 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 ug Panblok H7 adjuvanted with AS03
3.75 ug Panblok H7 Plus MF59
n=61 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 ug Panblok H7 adjuvanted with MF59
7.5 ug Panblok H7 Plus MF59
n=60 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 ug Panblok H7 adjuvanted with MF59
15 ug Panblok H7 Plus MF59
n=61 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 ug Panblok H7 adjuvanted with MF59
Nervous system disorders
Colloid brain cyst
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Congenital, familial and genetic disorders
Cardiac septal defect
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Congenital, familial and genetic disorders
Pulmonary artery stenosis congenital
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Infections and infestations
Appendicitis
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Infections and infestations
Bronchitis
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Infections and infestations
Diverticulitis
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Infections and infestations
Meningitis aseptic
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Musculoskeletal and connective tissue disorders
Arthritis
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Musculoskeletal and connective tissue disorders
Intervertebral disc protrusion
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Musculoskeletal and connective tissue disorders
Muscular weakness
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant melanoma
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
1.7%
1/60 • Number of events 1 • 13 months
0.00%
0/61 • 13 months
Nervous system disorders
Monoplegia
1.6%
1/62 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Pregnancy, puerperium and perinatal conditions
Abortion spontaneous
0.00%
0/62 • 13 months
1.7%
1/60 • Number of events 1 • 13 months
0.00%
0/62 • 13 months
0.00%
0/61 • 13 months
1.7%
1/60 • Number of events 1 • 13 months
0.00%
0/61 • 13 months
Renal and urinary disorders
Nephrolithiasis
0.00%
0/62 • 13 months
0.00%
0/60 • 13 months
0.00%
0/62 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months

Other adverse events

Other adverse events
Measure
3.75 ug Panblok H7 Plus AS03
n=62 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 ug Panblok H7 plus AS03
7.5 ug Panblok H7 Plus AS03
n=60 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 ug Panblok H7 adjuvanted with AS03
15 ug Panblok H7 Plus AS03
n=62 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 ug Panblok H7 adjuvanted with AS03
3.75 ug Panblok H7 Plus MF59
n=61 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 3.75 ug Panblok H7 adjuvanted with MF59
7.5 ug Panblok H7 Plus MF59
n=60 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 7.5 ug Panblok H7 adjuvanted with MF59
15 ug Panblok H7 Plus MF59
n=61 participants at risk
Participants dosed intramuscularly (IM) on Days 1 and 29 with 15 ug Panblok H7 adjuvanted with MF59
Gastrointestinal disorders
Diarrhoea
3.2%
2/62 • Number of events 2 • 13 months
8.3%
5/60 • Number of events 7 • 13 months
14.5%
9/62 • Number of events 12 • 13 months
14.8%
9/61 • Number of events 10 • 13 months
16.7%
10/60 • Number of events 15 • 13 months
13.1%
8/61 • Number of events 9 • 13 months
Gastrointestinal disorders
Nausea
11.3%
7/62 • Number of events 9 • 13 months
11.7%
7/60 • Number of events 11 • 13 months
16.1%
10/62 • Number of events 10 • 13 months
19.7%
12/61 • Number of events 18 • 13 months
6.7%
4/60 • Number of events 5 • 13 months
14.8%
9/61 • Number of events 9 • 13 months
General disorders
Chills
11.3%
7/62 • Number of events 8 • 13 months
11.7%
7/60 • Number of events 10 • 13 months
9.7%
6/62 • Number of events 6 • 13 months
9.8%
6/61 • Number of events 7 • 13 months
8.3%
5/60 • Number of events 5 • 13 months
6.6%
4/61 • Number of events 4 • 13 months
General disorders
Fatigue
27.4%
17/62 • Number of events 22 • 13 months
25.0%
15/60 • Number of events 18 • 13 months
30.6%
19/62 • Number of events 24 • 13 months
26.2%
16/61 • Number of events 22 • 13 months
18.3%
11/60 • Number of events 13 • 13 months
16.4%
10/61 • Number of events 11 • 13 months
General disorders
Injection site erythema
8.1%
5/62 • Number of events 5 • 13 months
11.7%
7/60 • Number of events 8 • 13 months
4.8%
3/62 • Number of events 4 • 13 months
11.5%
7/61 • Number of events 8 • 13 months
3.3%
2/60 • Number of events 2 • 13 months
3.3%
2/61 • Number of events 2 • 13 months
General disorders
Injection site induration
4.8%
3/62 • Number of events 4 • 13 months
13.3%
8/60 • Number of events 11 • 13 months
9.7%
6/62 • Number of events 9 • 13 months
11.5%
7/61 • Number of events 9 • 13 months
3.3%
2/60 • Number of events 2 • 13 months
1.6%
1/61 • Number of events 1 • 13 months
General disorders
Injection site pain
67.7%
42/62 • Number of events 70 • 13 months
70.0%
42/60 • Number of events 68 • 13 months
58.1%
36/62 • Number of events 60 • 13 months
52.5%
32/61 • Number of events 44 • 13 months
48.3%
29/60 • Number of events 42 • 13 months
47.5%
29/61 • Number of events 45 • 13 months
General disorders
Pyrexia
1.6%
1/62 • Number of events 1 • 13 months
3.3%
2/60 • Number of events 2 • 13 months
6.5%
4/62 • Number of events 4 • 13 months
3.3%
2/61 • Number of events 2 • 13 months
0.00%
0/60 • 13 months
0.00%
0/61 • 13 months
Infections and infestations
Upper respiratory tract infection
11.3%
7/62 • Number of events 7 • 13 months
6.7%
4/60 • Number of events 4 • 13 months
3.2%
2/62 • Number of events 3 • 13 months
9.8%
6/61 • Number of events 7 • 13 months
10.0%
6/60 • Number of events 6 • 13 months
6.6%
4/61 • Number of events 5 • 13 months
Investigations
Blood creatine phosphokinase increased
3.2%
2/62 • Number of events 2 • 13 months
3.3%
2/60 • Number of events 2 • 13 months
4.8%
3/62 • Number of events 3 • 13 months
4.9%
3/61 • Number of events 3 • 13 months
6.7%
4/60 • Number of events 5 • 13 months
6.6%
4/61 • Number of events 4 • 13 months
Musculoskeletal and connective tissue disorders
Arthralgia
8.1%
5/62 • Number of events 6 • 13 months
10.0%
6/60 • Number of events 8 • 13 months
9.7%
6/62 • Number of events 6 • 13 months
13.1%
8/61 • Number of events 10 • 13 months
1.7%
1/60 • Number of events 1 • 13 months
3.3%
2/61 • Number of events 2 • 13 months
Musculoskeletal and connective tissue disorders
Myalgia
22.6%
14/62 • Number of events 20 • 13 months
31.7%
19/60 • Number of events 27 • 13 months
29.0%
18/62 • Number of events 24 • 13 months
26.2%
16/61 • Number of events 23 • 13 months
13.3%
8/60 • Number of events 10 • 13 months
21.3%
13/61 • Number of events 17 • 13 months
Nervous system disorders
Headache
33.9%
21/62 • Number of events 29 • 13 months
28.3%
17/60 • Number of events 26 • 13 months
25.8%
16/62 • Number of events 23 • 13 months
26.2%
16/61 • Number of events 20 • 13 months
26.7%
16/60 • Number of events 28 • 13 months
24.6%
15/61 • Number of events 21 • 13 months
Respiratory, thoracic and mediastinal disorders
Cough
3.2%
2/62 • Number of events 3 • 13 months
1.7%
1/60 • Number of events 1 • 13 months
3.2%
2/62 • Number of events 2 • 13 months
6.6%
4/61 • Number of events 5 • 13 months
5.0%
3/60 • Number of events 3 • 13 months
3.3%
2/61 • Number of events 3 • 13 months

Additional Information

Silvija Tresnjak-Smith

BARDA

Phone: 202-557-1993

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place