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A/H5N1/LT Dose Ranging Study

A Randomized Blinded, LT Dose-ranging Study to Assess the Immunogenicity and Safety of Different Doses of LT Adjuvant Patch Administered in Conjunction With Different Doses of Inactivated Influenza A/H5N1 Vaccine in Healthy Adults

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00908687
Enrollment
500
Registered
2009-05-27
Start date
2009-05-31
Completion date
2011-07-31
Last updated
2021-12-10

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

Conditions

Pandemic Influenza

Brief summary

This is a Phase 2, randomized, blinded, clinical trial. Up to 500 eligible subjects will be enrolled and randomized in a 1:2:2:1:2:2 ratio into one of six groups, and vaccinated in this study. Subjects will receive an intramuscular injection of the influenza A/H5N1 (low or high dose) on Day 0 with or without a patch (low or high dose).

Interventions

BIOLOGICALA/H5N1

A/H5N1 Low Dose

BIOLOGICALLT Adjuvant Patch

LT Adjuvant Patch Low Dose

Sponsors

Department of Health and Human Services
CollaboratorFED
Intercell USA, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 49 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy adult male or females 18 to 49 years of age (inclusive) * Signed Informed Consent * Women who are not post-menopausal or surgically sterile must have a negative serum or urine pregnancy test at screening and within 24 hours of vaccination with understanding (through informed Consent process) to not become pregnant over the duration of the study, and must agree to employ an effective form of birth control for the duration of the study. Acceptable forms of birth control are: abstinence, hormonal contraceptives (oral, injectable, implant, patch, ring), double-barrier contraceptives (condom or diaphragm, with spermicide) and IUD

Exclusion criteria

* Clinically significant laboratory abnormalities at screening * Abnormalities at physical examination \[as determined by the Toxicity Grading Scale (grade 1-4)\] * Known allergies to any component of the vaccine * Known egg protein allergy * Known allergies to adhesives * Known disturbance of coagulation * Participated in research involving investigational product within 45 days before planned date of vaccination * Donated or received blood or blood products such as plasma within the past 45 days * Received any licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to planned date of vaccination * Ever received investigational enterotoxigenic E. coli, or LT (R192G) or NasalFlu, Berna Biotech Ltd * Ever received cholera toxin or vaccine (e.g. Orochol, Dukoral) * History of abdominal surgery (excluding C-Section, hysterectomy, cosmetic surgery, liposuction, appendectomy, cholecystectomy, ventral hernia repair, and other surgeries not pertaining to gastrointestinal problems) or history of, or recent acute gastrointestinal (GI) illness * Previous vaccination with a pandemic vaccine or previous proven contact with A/H5N1 wild type virus (contact with an individual with laboratory-confirmed A/H5N1 infection or contact with an animal which died as a result of A/H5N1 infection) * Recent or regular use of oral, topical or injected steroid medications within 45 days prior to vaccination * Use of immunosuppressive systemic steroid medications including inhaled steroids within three months prior to vaccination * Comorbid conditions or treatments that are immunosuppressive, including cancer, diabetes, and end-stage renal disease, as determined by the Investigator * Positive serology for HIV-1, HIV-2, HBsAg, or HCV * History of severe atopy * Medical history of acute or chronic skin disease at vaccination area * Active skin allergy * Signs of acute skin infection, sunburn or skin abnormalities at the vaccination area including fungal infections, severe acne, active contact dermatitis, or a history of keloid formation * Hirsute (significant amount of hair) at vaccination area * Artificial tanning (UV radiation) over the duration of the study including the screening period * Visible tattoos or marks (tattoos/scars) at the vaccination area that would prevent appropriate dermatologic monitoring of the vaccination site * Fever greater than or equal to 38.0°C (100.4°F) at the time of planned vaccination * Suspicion of or recent history (within one year of planned vaccination) of alcohol or substance abuse * Women who are pregnant or breastfeeding * Acute illness at screening or at baseline * Ever had a serious reaction to prior influenza vaccination * Developed a neurological disorder (such as Guillian Barré syndrome) in the six weeks following a previous influenza vaccination * Medical history of achlorhydria * Employee of the investigational site or sponsor * History of employment in bird or poultry industries or considerable exposure to birds (e.g. poultry or avian veterinarians, bird breeders, poultry butchers and/or culler, etc.)

Design outcomes

Primary

MeasureTime frameDescription
Assess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.Day 28Seroconversion is defined as either 1) baseline HI titer \< 1:10 and a post-vaccination HI titer ≥ 1:40, or 2) baseline HI titer ≥ 1:10 and a minimum four-fold rise. Seroprotection is defined as a post-vaccination HI antibody titer ≥ 1:40. FDA/EMEA criterion for seroconversion was to meet or exceed 40%. FDA/EMEA criterion for seroprotection was to meet or exceed 70%.

Secondary

MeasureTime frame
Safety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant Patch6 months
Evaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for ImmunogenicityDay 28

Countries

United States

Participant flow

Participants by arm

ArmCount
Group 1: 30 µg HA, no LT Patch
A/H5N1 Vaccine 30 µg HA i.m. on Day 0 A/H5N1: A/H5N1 Low Dose
50
Group 2: 30 µg HA + 50 µg LT Patch
A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0 A/H5N1: A/H5N1 Low Dose LT Adjuvant Patch: LT Adjuvant Patch Low Dose
100
Group 3: 30 µg HA + 100 µg LT Patch
A/H5N1 Vaccine 30 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0 A/H5N1: A/H5N1 Low Dose LT Adjuvant Patch: LT Adjuvant Patch High Dose
102
Group 4: 45 µg HA, no LT Patch
A/H5N1 Vaccine 45 µg HA i.m. on Day 0 A/H5N1: A/H5N1 High Dose
50
Group 5: 45 µg HA + 50 µg LT Patch
A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 50 µg of LT on Day 0 A/H5N1: A/H5N1 High Dose LT Adjuvant Patch: LT Adjuvant Patch Low Dose
98
Group 6: 45 µg HA + 100 µg LT Patch
A/H5N1 Vaccine 45 µg HA i.m. + LT adjuvant patch containing 100 µg of LT on Day 0 A/H5N1: A/H5N1 High Dose LT Adjuvant Patch: LT Adjuvant Patch High Dose
100
Total500

Baseline characteristics

CharacteristicGroup 1: 30 µg HA, no LT PatchGroup 2: 30 µg HA + 50 µg LT PatchGroup 3: 30 µg HA + 100 µg LT PatchGroup 4: 45 µg HA, no LT PatchGroup 5: 45 µg HA + 50 µg LT PatchGroup 6: 45 µg HA + 100 µg LT PatchTotal
Age, Continuous30.9 years
STANDARD_DEVIATION 9.7
29.8 years
STANDARD_DEVIATION 9.6
31.3 years
STANDARD_DEVIATION 10.4
30.5 years
STANDARD_DEVIATION 8.7
28.1 years
STANDARD_DEVIATION 8.2
30.8 years
STANDARD_DEVIATION 8.3
30.1 years
STANDARD_DEVIATION 9.2
Sex: Female, Male
Female
29 Participants54 Participants61 Participants25 Participants53 Participants64 Participants286 Participants
Sex: Female, Male
Male
21 Participants46 Participants41 Participants25 Participants45 Participants36 Participants214 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
31 / 5086 / 10086 / 10236 / 5087 / 9885 / 100
serious
Total, serious adverse events
0 / 500 / 1001 / 1020 / 501 / 981 / 100

Outcome results

Primary

Assess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.

Seroconversion is defined as either 1) baseline HI titer \< 1:10 and a post-vaccination HI titer ≥ 1:40, or 2) baseline HI titer ≥ 1:10 and a minimum four-fold rise. Seroprotection is defined as a post-vaccination HI antibody titer ≥ 1:40. FDA/EMEA criterion for seroconversion was to meet or exceed 40%. FDA/EMEA criterion for seroprotection was to meet or exceed 70%.

Time frame: Day 28

Population: Primary Immunogenicity Evaluable Population (PIEP): all subjects who were consented, randomized, received the assigned treatment, had HI assay results at all the following time points: baseline (Day 0), Day 21 and Day 28, and did not have any major protocol deviations

ArmMeasureGroupValue (NUMBER)
Group 1: 30 µg HA, no LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates35.4 percentage of subjects
Group 1: 30 µg HA, no LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates35.4 percentage of subjects
Group 2: 30 µg HA + 50 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates47.4 percentage of subjects
Group 2: 30 µg HA + 50 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates47.4 percentage of subjects
Group 3: 30 µg HA + 100 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates37.6 percentage of subjects
Group 3: 30 µg HA + 100 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates37.6 percentage of subjects
Group 4: 45 µg HA, no LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates53.1 percentage of subjects
Group 4: 45 µg HA, no LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates55.1 percentage of subjects
Group 5: 45 µg HA + 50 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates50.5 percentage of subjects
Group 5: 45 µg HA + 50 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates53.7 percentage of subjects
Group 6: 45 µg HA + 100 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroconversion Rates50.0 percentage of subjects
Group 6: 45 µg HA + 100 µg LT PatchAssess the Proportion of Subjects in Each Dose Group Achieving Seroconversion and Seroprotection for HI Antibody Titer Through Day 28.HI Seroprotection Rates50.0 percentage of subjects
Secondary

Evaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity

Time frame: Day 28

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1: 30 µg HA, no LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity7.1 fold increase of Geometric Mean Titers
Group 2: 30 µg HA + 50 µg LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity8.4 fold increase of Geometric Mean Titers
Group 3: 30 µg HA + 100 µg LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity8.6 fold increase of Geometric Mean Titers
Group 4: 45 µg HA, no LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity12.7 fold increase of Geometric Mean Titers
Group 5: 45 µg HA + 50 µg LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity10.7 fold increase of Geometric Mean Titers
Group 6: 45 µg HA + 100 µg LT PatchEvaluate Treatment Group HI Responses Against US FDA Guidance for Industry: Clinical Data Needed to Support the Licensure of Pandemic Influenza Vaccines (May 2007) and EMA CPMP/BWP/214/96 Criteria for Immunogenicity13.5 fold increase of Geometric Mean Titers
Secondary

Safety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant Patch

Time frame: 6 months

ArmMeasureGroupValue (NUMBER)
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs0 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs0 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs0 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs0 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs51 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs4 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs70 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs19 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs2 Number of Events
Group 1: 30 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs4 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs10 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs28 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs0 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs18 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs484 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs18 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs309 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs0 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs175 Number of Events
Group 2: 30 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs4 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs11 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs507 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs358 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs149 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs13 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs11 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs2 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs0 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs1 Number of Events
Group 3: 30 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs1 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs99 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs37 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs1 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs6 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs0 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs0 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs0 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs6 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs0 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 4: 45 µg HA, no LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs136 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs26 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs18 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs8 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs155 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs4 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs361 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs1 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs1 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs516 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 5: 45 µg HA + 50 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs18 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Systemic AEs1 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll AEs471 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Local AEs21 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSevere Systemic AEs7 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Severe AEs28 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchLocal AEs337 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSerious Local AEs0 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchSystemic AEs134 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Systemic AEs3 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchRelated Severe Local AEs21 Number of Events
Group 6: 45 µg HA + 100 µg LT PatchSafety of A/H5N1 Vaccine IM Injection With and Without an LT Adjuvant PatchAll Serious AEs1 Number of Events

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