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A Study of Different Formulations of an Adjuvanted A/H1N1 Pandemic Vaccine in Healthy Adults and the Elderly

Immunogenicity and Safety of Multiple Formulations of an Adjuvanted A/H1N1 Pandemic Vaccine in Healthy Adult and Elderly Subjects

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00952276
Enrollment
548
Registered
2009-08-06
Start date
2009-10-31
Completion date
2011-03-31
Last updated
2011-10-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza, Swine-origin A/H1N1 Influenza

Keywords

Influenza Pandemic Flu Swine-origin A/H1N1 Influenza Adults

Brief summary

The purpose of the study is to evaluate different doses of the Influenza A/H1N1 pandemic vaccine in adults and the elderly. Primary Objectives: * To describe the immunogenicity of the candidate vaccines after a single injection. * To describe the safety of the candidate vaccines after a single injection.

Detailed description

Participants will receive a single injection of their randomized vaccine on Day 0.

Interventions

BIOLOGICALMonovalent Subvirion A/H1N1 influenza vaccine with adjuvant

0.5 mL, Intramuscular on Day 0

0.5 mL, Intramuscular on Day 0

BIOLOGICALNormal saline solution

0.5 mL, Intramuscular on Day 0

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

: * Healthy adults aged 18 years or older on the day of inclusion * Informed consent has been signed and dated * Able to attend all scheduled visits and comply with all trial procedures * For a woman of child-bearing potential, use of an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination, until at least 4 weeks after last vaccination.

Exclusion criteria

: * Known pregnancy or positive urine pregnancy test * Currently breastfeeding a child * Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first trial vaccination * Planned participation in another clinical trial during the present trial period * Receipt of any vaccine in the 4 weeks preceding the trial vaccination, except for the inactivated seasonal influenza vaccine, within two weeks preceding trial vaccination * Planned receipt of any vaccine prior to the Day 42 blood sample * Receipt of blood or blood-derived products in the past 3 months which might interfere with the assessment of immune response * Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) * Self-reported seropositivity for Human Immunodeficiency Virus (HIV), Hepatitis B antigen, or Hepatitis C * Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine(s) used in the trial or to a vaccine containing any of the same substances * Self reported thrombocytopenia contraindicating intramuscular (IM) vaccination * Bleeding disorder or receipt of anticoagulants in the 3 weeks preceding inclusion contraindicating IM vaccination * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily * Current alcohol abuse or drug addiction that may interfere with the subject's ability to comply with trial procedures * Chronic illness that in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion * Employees of the Investigator or study center, with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as family members of the employees or the Investigator * Previous participation in a swine-origin A/H1N1 pandemic flu trial except if performed in 1976 * Any confirmed case of influenza (including swine-origin A/H1N1 Influenza) since March 2009 * Febrile illness (temperature ≥ 100.4°F \[≥ 38.0°C \]) or moderate or severe acute illness/infection (according to Investigator judgment) on the day of vaccination * Personal or family history of Guillain-Barré syndrome * Active neoplastic disease or a history of any hematologic malignancy * Known seizure/epilepsy history and/or taking anti-seizure medication * Receipt of psychiatric drugs. Subjects receiving a single antidepressant drug and stable for at least 3 months prior to enrollment, without decompensating symptoms will be allowed to enroll in the study * Any Grade 1, 2, or 3 liver function values (Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), and Alkaline phosphatase) observed in blood sample taken at Screening * Any Grade 2 or Grade 3 laboratory abnormalities in blood sample taken at Screening * Receipt of any monovalent 2009 pandemic H1N1 vaccine.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Detectable anti HA antibody titer was defined as titers ≥ 10 (1/dilution) on Day 0 and Day 21 post-vaccination.
Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Seroprotection was defined as a titer ≥ 40 (1/dil).
Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay.
Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Detectable anti-HA antibody titer was defined as titers ≥ 10 (1/dil).
Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Seroprotection was defined as a titer ≥ 40 (1/dil).
Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 and Day 21 post-vaccinationAntibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay.
Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 up to Day 7 post-vaccinationSolicited Injections Site Reactions: Pain, Erythema, Swelling, Induration, and Ecchymosis. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering
Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 up to Day 7 post-vaccinationSolicited Injections Site Reactions: Pain, Erythema, Swelling, Induration, and Ecchymosis. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering.

Countries

United States

Participant flow

Recruitment details

Participants were enrolled from 29 October 2009 to 13 November 2009 at 14 US clinical centers.

Pre-assignment details

A total of 548 participants who met the inclusion and exclusion criteria were enrolled, vaccinated, and included in data analysis.

Participants by arm

ArmCount
Group 1: A/H1N1 Vaccine Formulation 1 + Adjuvant
Participants who received a dose of A/H1N1 vaccine containing 3.8 µg hemagglutinin (HA) with adjuvant on Day 0
127
Group 2: A/H1N1 Vaccine Formulation 2 + Adjuvant
Participants who received a dose of A/H1N1 vaccine containing 7.5 µg hemagglutinin (HA) with adjuvant on Day 0
115
Group 3: A/H1N1 Vaccine Formulation 3
Participants who received a dose of A/H1N1 vaccine containing 3.8 µg hemagglutinin (HA) on Day 0
122
Group 4: A/H1N1 Vaccine Formulation 4
Participants who received a dose of A/H1N1 vaccine containing 7.5 µg hemagglutinin (HA) on Day 0
121
Group 5: Placebo
Participants who received a dose of placebo (normal saline) on Day 0
63
Total548

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyWithdrawal by Subject10010

Baseline characteristics

CharacteristicGroup 2: A/H1N1 Vaccine Formulation 2 + AdjuvantGroup 3: A/H1N1 Vaccine Formulation 3Group 4: A/H1N1 Vaccine Formulation 4Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantGroup 5: PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
46 Participants49 Participants50 Participants52 Participants25 Participants222 Participants
Age, Categorical
Between 18 and 65 years
69 Participants73 Participants71 Participants75 Participants38 Participants326 Participants
Age Continuous
Age Continuous
53.3 Years
STANDARD_DEVIATION 18.7
51.9 Years
STANDARD_DEVIATION 18
52.7 Years
STANDARD_DEVIATION 19.9
54.0 Years
STANDARD_DEVIATION 18.4
54.7 Years
STANDARD_DEVIATION 16.7
53.4 Years
STANDARD_DEVIATION 18.34
Region of Enrollment
United States
115 Participants122 Participants121 Participants127 Participants63 Participants548 Participants
Sex: Female, Male
Female
65 Participants66 Participants68 Participants79 Participants45 Participants323 Participants
Sex: Female, Male
Male
50 Participants56 Participants53 Participants48 Participants18 Participants225 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
77 / 12775 / 11575 / 12282 / 12140 / 63
serious
Total, serious adverse events
6 / 1275 / 1155 / 1224 / 1215 / 63

Outcome results

Primary

Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay.

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 18 to 64 years.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)23.7 Titers
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)896 Titers
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)21.0 Titers
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)900 Titers
Group 3: A/H1N1 Vaccine Formulation 3Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)23.8 Titers
Group 3: A/H1N1 Vaccine Formulation 3Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)470 Titers
Group 4: A/H1N1 Vaccine Formulation 4Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)608 Titers
Group 4: A/H1N1 Vaccine Formulation 4Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)27.7 Titers
Group 5: PlaceboGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)20.0 Titers
Group 5: PlaceboGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)26.3 Titers
Primary

Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay.

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 65 years or older.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)28.5 Titers
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)501 Titers
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)40.0 Titers
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)630 Titers
Group 3: A/H1N1 Vaccine Formulation 3Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)26.1 Titers
Group 3: A/H1N1 Vaccine Formulation 3Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)177 Titers
Group 4: A/H1N1 Vaccine Formulation 4Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)189 Titers
Group 4: A/H1N1 Vaccine Formulation 4Geometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)23.0 Titers
Group 5: PlaceboGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)25.7 Titers
Group 5: PlaceboGeometric Mean Titers (GMTs) of A/H1N1 Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)26.8 Titers
Primary

Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 Years

Solicited Injections Site Reactions: Pain, Erythema, Swelling, Induration, and Ecchymosis. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering

Time frame: Day 0 up to Day 7 post-vaccination

Population: Safety analysis was on all enrolled and vaccinated participants with available reaction data, intent to treat population aged 18 to 64 years.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Headache36 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Shivering (Prevents daily activity)1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Ecchymosis0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Fever1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Erythema2 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Pain52 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Shivering6 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Myalgia (Prevents daily activity)3 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Swelling3 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Myalgia36 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Pain (Prevents daily activity)1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Malaise (Prevents daily activity)3 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Induration1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Malaise29 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Headache (Prevents daily activity)2 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Ecchymosis4 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Pain53 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Swelling1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Shivering (Prevents daily activity)2 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Induration3 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Ecchymosis0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Shivering7 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Fever0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Malaise (Prevents daily activity)3 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Pain (Prevents daily activity)2 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Erythema2 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Myalgia (Prevents daily activity)4 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Headache (Prevents daily activity)3 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Headache27 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Malaise21 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Myalgia28 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Erythema2 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Pain13 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Pain (Prevents daily activity)1 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Swelling0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Induration0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Ecchymosis1 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Ecchymosis0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Fever3 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Headache25 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Headache (Prevents daily activity)1 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Malaise20 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Malaise (Prevents daily activity)3 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Myalgia12 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Myalgia (Prevents daily activity)3 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Shivering6 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Shivering (Prevents daily activity)1 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Headache24 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Pain17 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Myalgia17 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Pain (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Malaise12 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Myalgia (Prevents daily activity)2 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Shivering6 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Erythema0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Ecchymosis0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Headache (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Fever0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Malaise (Prevents daily activity)2 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Induration0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Swelling0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Headache15 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Induration0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Shivering3 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Headache (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Malaise8 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Swelling0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Pain11 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Malaise (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Myalgia12 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Erythema0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Myalgia (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Ecchymosis0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Pain (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Fever0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsGrade 3 Induration (> 10 cm)0 Participants
Primary

Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 Years

Solicited Injections Site Reactions: Pain, Erythema, Swelling, Induration, and Ecchymosis. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Shivering.

Time frame: Day 0 up to Day 7 post-vaccination

Population: Safety analysis was on all enrolled and vaccinated participants with available reaction data, intent-to-treat population aged 65 years or older.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Shivering2 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Headache10 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Ecchymosis (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Erythema1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Fever0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Pain21 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Shivering (Prevents daily activity)1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Myalgia (Prevents daily activity)1 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Swelling0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Pain (Prevents daily activities)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Myalgia12 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Malaise (Prevents daily activity)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Induration2 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Malaise8 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Headache (Prevents daily activity)2 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Induration2 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Swelling3 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Pain22 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Shivering3 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Ecchymosis (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Malaise (Prevents daily activity)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Headache (Prevents daily activity)1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Fever1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Erythema1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Pain (Prevents daily activities)1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Myalgia (Prevents daily activity)1 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Headache10 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Malaise4 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Myalgia11 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Myalgia (Prevents daily activity)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Pain2 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Pain (Prevents daily activities)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Erythema0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Swelling0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Induration0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Ecchymosis0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Ecchymosis (> 10 cm)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Fever0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Headache5 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Headache (Prevents daily activity)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Malaise3 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Malaise (Prevents daily activity)0 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Myalgia3 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Shivering1 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Ecchymosis2 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Shivering3 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Headache10 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Headache (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Induration0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Malaise5 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Pain7 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Malaise (Prevents daily activity)1 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Swelling0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Myalgia7 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Erythema1 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Myalgia (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Pain (Prevents daily activities)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Fever1 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Ecchymosis (> 10 cm)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Pain (Prevents daily activities)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Induration (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Erythema (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Shivering (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Headache3 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Ecchymosis (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Induration0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Shivering1 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Myalgia2 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Headache (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Fever (≥ 102.1 ºF or ≥ 39.0 ºC)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Swelling (> 10 cm)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Pain2 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Erythema0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Malaise1 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Ecchymosis1 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Solicited Injection Site Swelling0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsAny Fever0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Myalgia (Prevents daily activity)0 Participants
Group 5: PlaceboNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsGrade 3 Malaise (Prevents daily activity)0 Participants
Primary

Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Detectable anti HA antibody titer was defined as titers ≥ 10 (1/dilution) on Day 0 and Day 21 post-vaccination.

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 18 to 64 years.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)44 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)71 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)41 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)67 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)51 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)71 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)68 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)46 Participants
Group 5: PlaceboNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)22 Participants
Group 5: PlaceboNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)27 Participants
Primary

Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Detectable anti-HA antibody titer was defined as titers ≥ 10 (1/dil).

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 65 years or older.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)35 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)50 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)39 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)45 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)37 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)46 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)50 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)38 Participants
Group 5: PlaceboNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)19 Participants
Group 5: PlaceboNumber of Participants With Detectable Antibodies Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)18 Participants
Primary

Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Seroprotection was defined as a titer ≥ 40 (1/dil).

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 18 to 64 years.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)25 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)71 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)24 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)66 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)26 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)67 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)64 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)27 Participants
Group 5: PlaceboNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 0 (Pre-vaccination)11 Participants
Group 5: PlaceboNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age 18 to 64 YearsDay 21 (Post-vaccination)13 Participants
Primary

Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 Years

Antibodies to vaccine were measured using the Hemagglutinin Inhibition (HAI) assay. Seroprotection was defined as a titer ≥ 40 (1/dil).

Time frame: Day 0 and Day 21 post-vaccination

Population: Pre and post-vaccination antibody titers were assessed in the per-protocol population aged 65 years or older.

ArmMeasureGroupValue (NUMBER)
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)23 Participants
Group 1: A/H1N1 Vaccine Formulation 1 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)48 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)21 Participants
Group 2: A/H1N1 Vaccine Formulation 2 + AdjuvantNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)44 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)19 Participants
Group 3: A/H1N1 Vaccine Formulation 3Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)40 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)40 Participants
Group 4: A/H1N1 Vaccine Formulation 4Number of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)20 Participants
Group 5: PlaceboNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 0 (Pre-vaccination)9 Participants
Group 5: PlaceboNumber of Participants With Seroprotection Before and Following Vaccination With Either Adjuvanted or Non-adjuvanted A/H1N1 Pandemic Vaccine or a Placebo: Age ≥ 65 YearsDay 21 (Post-vaccination)9 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026