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A Phase 1, Dose Escalation Study, to Evaluate a New Shigella Sonnei Vaccine in Healthy Adults.

A Phase 1, Randomized, Observer Blinded, Placebo Controlled, Single Center, Dose Escalation Study to Evaluate the Safety and Immunogenicity of 3 Vaccinations With Shigella Sonnei Vaccine (1790GAHB) Administered Intramuscularly in Healthy Adults.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02017899
Enrollment
50
Registered
2013-12-23
Start date
2014-02-28
Completion date
2015-03-31
Last updated
2019-01-23

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

Conditions

Shigellosis

Keywords

prevention, Shigella sonnei

Brief summary

This Phase 1 clinical trial is aimed to evaluate the safety and immunogenicity of 3 doses of 5 sequentially escalating dosages of a candidate vaccine against Shigella sonnei (1790GAHB vaccine) administered by intramuscular route in healthy adults (18 to 45 years of age at enrollment). The safety profile of the 1790GAHB vaccine is evaluated in comparison to that of placebo (GAHB-Placebo), constituted by an aluminum hydroxide suspension having the same concentration as study vaccine formulations. A total of 50 eligible subjects will be assigned to one of five sequential cohorts of 10 subjects each. Within each cohort, in an observer-blind fashion, subjects will be randomized to receive three vaccinations, four weeks apart, of either 1790GAHB vaccine (at five antigen concentrations) or GAHB placebo. A Data Safety Monitoring Board will be in place to receive a summary of all safety data obtained during one week follow-up post-first vaccination with the lower dose. Based on evaluation of the safety data, the Data Safety Monitoring Board will make a recommendation, as to whether the next cohort should be vaccinated with higher antigen concentration or not. Expected duration of the study for an individual subject is 9 months. Each subject will be followed-up for 6 months after the 3rd vaccination.

Interventions

BIOLOGICALPlacebo

Sponsors

GSK Vaccines Institute For Global Health S.r.l.
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 45 Years
Healthy volunteers
Yes

Inclusion criteria

1. Males and females of age ≥18 years to ≤45 years. 2. Individuals who, after the nature of the study has been explained to them, and prior to any protocol specific procedures being performed, have given written consent according to local regulatory requirements. 3. Individuals in good health as determined by the outcome of medical history, physical examination, hematological / hematochemical blood tests (including presence of high antibody titers against S. sonnei by agglutination test), urinalysis and clinical judgment of the investigator. 4. If women of child-bearing potential, have a negative pregnancy test prior study vaccination and willingness to use acceptable birth control measures for the entire study duration. 5. Individuals affiliated to a social security regimen.

Exclusion criteria

1. Individuals with behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may interfere with the subject's ability to participate in the study. 2. Individuals with any progressive or severe neurological disorder, seizure disorder or Guillain-Barré syndrome. 3. Individuals who are not able to understand and to follow all required study procedures for the whole period of the study. 4. Individuals with history of any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study. 5. Individuals human leukocyte antigen (HLA) -B27 positive and/or with history of reactive arthritis. 6. Individuals with known or suspected HIV infection or HIV related disease, with history of an autoimmune disorder or any other known or suspected impairment /alteration of the immune system, or under immunosuppressive therapy including use of systemic corticosteroids or chronic use of inhaled high-potency corticosteroids (i.e. prednisone, or equivalent ≥10 mg/day) within the previous 28 days, or in chemotherapy treatment within the past 168 days. 7. Individuals with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time. 8. Individuals with any serious chronic or progressive disease according to judgment of the investigator (e.g., neoplasm, insulin dependent diabetes, cardiac, renal or hepatic disease). 9. Individuals who have any malignancy or lymphoproliferative disorder. 10. Individuals with history of allergy to vaccine components. 11. Individuals participating in any clinical trial with another investigational product 28 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study. 12. Individuals who received any other vaccines within 4 weeks prior to enrollment in this study or who are planning to receive any vaccine within the entire study duration except influenza vaccination, which is not allowed within the period included between 28 days before 1st vaccination and 28 days after 3rd vaccination. 13. Individuals who have received blood, blood products, and/or plasma derivatives including parenteral immunoglobulin preparations in the past 12 weeks. 14. Individuals who are part of study personnel or close family members to the personnel conducting this study or employees of the clinical trial site institution. 15. Individuals with body temperature \> 38.0 degrees Celsius within 3 days of intended study vaccination. 16. Individuals with Body Mass Index (BMI)\> 30 kg/m2 17. Individuals with history of substance or alcohol abuse within the past 2 years. 18. Women who are pregnant or are breast-feeding, or are of childbearing age who have not used or do not plan to use acceptable birth control measures, for the duration of the study. 19. Females with history of stillbirth, neonatal loss, or previous infant with anomaly. 20. Individuals who have a previously laboratory confirmed or suspected disease caused by S. sonnei. 21. Individuals who have had household contact with/and or intimate exposure to an individual with laboratory confirmed S. sonnei. 22. Any condition, which, in the opinion of the investigator may pose an increased and unreasonable safety risk to the subject if participating to the present study

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Solicited Local Reaction After Any VaccinationDuring a 7-day (Days 1-7) post vaccination period following any injectionAny erythema/induration refers to: ≥25 mm in diameter. Grade 3 (severe) refers to erythema/induration \>100 mm in diameter. Grade 3 (severe) for injection site pain refers to: prevents daily activity
Number of Subjects With Solicited Systemic Reaction After Any VaccinationDuring a 7-day (Days 1 to 7) post vaccination period following any injectionAny= Incidence of any symptom regardless of intensity grade. Grade 3 = symptom that prevented daily activities
Number of Subjects With Neutrophils Results Below and Above the Normal RangesAt Day 8Day 8: VISIT 2 (D7 post 1st vac)
Number of Subjects With Neutrophils Results Below and Above the NormalAt Day 36Day 36: VISIT 3.1 (D7 post 2nd vac.)

Secondary

MeasureTime frameDescription
Number of Subjects With Seroresponse for Anti-LPS S. SonneiAt 28 days after each vaccination and 168 days after last vaccinationSeroresponse is defined as: If half of the baseline value is greater than 25 ELISA Unit (EU) then an increase of at least 50% in the post-vaccination sample as compared to baseline \[i.e. ((Post-vac minus baseline)/baseline)100% ≥ 50%\]. If half of the baseline value is less or equal to 25 EU then an increase of at least 25 EU in the post-vaccination sample as compared to baseline (i.e. \[post-vac minus baseline\] ≥25 EU)
Number of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)At baseline, at 28 days after each vaccination and at 168 days after last vaccinationHigh seroresponse is defined as a post vaccination titer ≥X anti-LPS serum IgG units in the GSK (former Novartis) ELISA that correspond to a titer of 1:800 in the ELISA method used by Cohen et al. To determine the value for 'X' the GSK (former Novartis) anti-LPS ELISA was calibrated against the Cohen ELISA and it was found that a concentration of 121 EU EU/mL corresponds to a titer of 1:800 in the Cohen assay
Anti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)At baseline, at 28 days after each vaccination and at 168 days after last vaccination

Countries

France

Participant flow

Participants by arm

ArmCount
S. Sonnei 1790GAHB - 1 mcg
Subjects enrolled in COHORT A receiving 3 injections of S. sonnei 1790GAHB - 1 mcg S. sonnei 1790GAHB
8
S. Sonnei 1790GAHB - 5 mcg
Subjects enrolled in COHORT B receiving 3 injections of S. sonnei 1790GAHB - 5 mcg S. sonnei 1790GAHB
9
S. Sonnei 1790GAHB - 25 mcg
Subjects enrolled in COHORT C receiving 3 injections of S. sonnei 1790GAHB - 25 mcg S. sonnei 1790GAHB
8
S. Sonnei 1790GAHB - 50 mcg
Subjects enrolled in COHORT D receiving 3 injections of S. sonnei 1790GAHB - 50 mcg S. sonnei 1790GAHB
8
S. Sonnei 1790GAHB - 100 mcg
Subjects enrolled in COHORT E receiving 3 injections of S. sonnei 1790GAHB - 100 mcg S. sonnei 1790GAHB
9
Placebo
2 subjects enrolled in each COHORT A, B, C, D, E receiving 3 injections of Placebo. These were pooled in one Placebo group in the analyses Placebo
8
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyWithdrawal by Subject000110

Baseline characteristics

CharacteristicPlaceboTotalS. Sonnei 1790GAHB - 1 mcgS. Sonnei 1790GAHB - 5 mcgS. Sonnei 1790GAHB - 25 mcgS. Sonnei 1790GAHB - 50 mcgS. Sonnei 1790GAHB - 100 mcg
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants50 Participants8 Participants9 Participants8 Participants8 Participants9 Participants
Age, Continuous33.1 years
STANDARD_DEVIATION 8.2
30.2 years
STANDARD_DEVIATION 6.9
32.1 years
STANDARD_DEVIATION 6.7
29.8 years
STANDARD_DEVIATION 7
26.8 years
STANDARD_DEVIATION 5.7
32.9 years
STANDARD_DEVIATION 7.7
26.9 years
STANDARD_DEVIATION 4.2
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants4 Participants1 Participants1 Participants1 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants6 Participants0 Participants2 Participants1 Participants2 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
7 Participants40 Participants7 Participants6 Participants6 Participants5 Participants9 Participants
Region of Enrollment
France
8 participants50 participants8 participants9 participants8 participants8 participants9 participants
Sex: Female, Male
Female
7 Participants28 Participants4 Participants4 Participants5 Participants4 Participants4 Participants
Sex: Female, Male
Male
1 Participants22 Participants4 Participants5 Participants3 Participants4 Participants5 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
8 / 89 / 98 / 88 / 89 / 98 / 8
serious
Total, serious adverse events
0 / 80 / 90 / 80 / 80 / 90 / 8

Outcome results

Primary

Number of Subjects With Neutrophils Results Below and Above the Normal

Day 85: VISIT 5 (1 month post 3rd vac.)

Time frame: At Day 85

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
Primary

Number of Subjects With Neutrophils Results Below and Above the Normal

Day 225: VISIT 6 (6 months post 3rd vac.)

Time frame: At Day 225

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
Primary

Number of Subjects With Neutrophils Results Below and Above the Normal

Day 36: VISIT 3.1 (D7 post 2nd vac.)

Time frame: At Day 36

Population: Some Arms have zero subjects attending visit 3.1, as complete blood counts testing 7 days after 2nd and 3rd vaccination was introduced following a protocol amendment while the study was ongoing.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
Primary

Number of Subjects With Neutrophils Results Below and Above the Normal

Day 57: VISIT 4 (3rd vac.)

Time frame: At Day 57

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
Primary

Number of Subjects With Neutrophils Results Below and Above the Normal

Day 64: VISIT 4.1 (D7 post 3rd vac.)

Time frame: At Day 64

Population: Some arms have zero subjects attending visit 3.1, as complete blood counts testing 7 days after 2nd and 3rd vaccination was introduced following a protocol amendment while the study was ongoing.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the NormalNeutrophils Results Above Normal Ranges0 Participants
Primary

Number of Subjects With Neutrophils Results Below and Above the Normal Ranges

Day 8: VISIT 2 (D7 post 1st vac)

Time frame: At Day 8

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges1 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Below Normal Ranges0 Participants
PlaceboNumber of Subjects With Neutrophils Results Below and Above the Normal RangesNeutrophils Results Above Normal Ranges0 Participants
Primary

Number of Subjects With Solicited Local Reaction After Any Vaccination

Any erythema/induration refers to: ≥25 mm in diameter. Grade 3 (severe) refers to erythema/induration \>100 mm in diameter. Grade 3 (severe) for injection site pain refers to: prevents daily activity

Time frame: During a 7-day (Days 1-7) post vaccination period following any injection

Population: Analysis was done on as treated safety population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain8 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain9 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain8 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration2 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain8 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain9 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration2 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain1 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema3 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema1 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration0 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Erythema0 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Erythema1 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Induration0 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Induration0 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationGrade 3 Pain0 Participants
PlaceboNumber of Subjects With Solicited Local Reaction After Any VaccinationAny Pain6 Participants
Primary

Number of Subjects With Solicited Systemic Reaction After Any Vaccination

Any= Incidence of any symptom regardless of intensity grade. Grade 3 = symptom that prevented daily activities

Time frame: During a 7-day (Days 1 to 7) post vaccination period following any injection

Population: Analysis was done on as treated population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue4 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)1 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia5 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache3 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia2 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills2 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue3 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache3 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache2 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia2 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills1 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia3 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)0 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)0 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia3 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue5 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia1 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia1 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue1 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache2 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise2 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia3 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia5 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)0 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue5 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Chills1 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Myalgia0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Malaise0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Headache3 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Fatigue5 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Arthralgia0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥38.0°C)0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationFever (≥40.0°C)0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Chills0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Myalgia3 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Headache0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Fatigue0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationGrade 3 Malaise0 Participants
PlaceboNumber of Subjects With Solicited Systemic Reaction After Any VaccinationAny Arthralgia1 Participants
Secondary

Anti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)

Time frame: At baseline, at 28 days after each vaccination and at 168 days after last vaccination

Population: Analysis was done on the Full Analysis Set (FAS), ie, subjects in All Enrolled Set who: received a study vaccination, provided evaluable serum, with results available \& who was not excluded due to protocol deviations or other reasons defined before unblinding or analysis

ArmMeasureGroupValue (GEOMETRIC_MEAN)
S. Sonnei 1790GAHB - 1 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.32 Titers
S. Sonnei 1790GAHB - 1 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.6.2 Titers
S. Sonnei 1790GAHB - 1 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)4.71 Titers
S. Sonnei 1790GAHB - 1 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.12 Titers
S. Sonnei 1790GAHB - 1 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.18 Titers
S. Sonnei 1790GAHB - 5 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.23 Titers
S. Sonnei 1790GAHB - 5 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.67 Titers
S. Sonnei 1790GAHB - 5 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)7.74 Titers
S. Sonnei 1790GAHB - 5 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.42 Titers
S. Sonnei 1790GAHB - 5 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.41 Titers
S. Sonnei 1790GAHB - 25 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.141 Titers
S. Sonnei 1790GAHB - 25 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.486 Titers
S. Sonnei 1790GAHB - 25 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.418 Titers
S. Sonnei 1790GAHB - 25 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.314 Titers
S. Sonnei 1790GAHB - 25 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)27 Titers
S. Sonnei 1790GAHB - 50 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.111 Titers
S. Sonnei 1790GAHB - 50 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)8.78 Titers
S. Sonnei 1790GAHB - 50 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.186 Titers
S. Sonnei 1790GAHB - 50 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.149 Titers
S. Sonnei 1790GAHB - 50 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.106 Titers
S. Sonnei 1790GAHB - 100 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.159 Titers
S. Sonnei 1790GAHB - 100 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)6.91 Titers
S. Sonnei 1790GAHB - 100 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.102 Titers
S. Sonnei 1790GAHB - 100 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.157 Titers
S. Sonnei 1790GAHB - 100 mcgAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.193 Titers
PlaceboAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Baseline (Day 1)6.37 Titers
PlaceboAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after third vac.7.71 Titers
PlaceboAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after first vac.6.35 Titers
PlaceboAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)Six months after third vac.5.05 Titers
PlaceboAnti-LPS S. Sonnei Serum IgG Geometric Mean Concentration (GMCs)One month after second vac.6.56 Titers
Secondary

Number of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)

High seroresponse is defined as a post vaccination titer ≥X anti-LPS serum IgG units in the GSK (former Novartis) ELISA that correspond to a titer of 1:800 in the ELISA method used by Cohen et al. To determine the value for 'X' the GSK (former Novartis) anti-LPS ELISA was calibrated against the Cohen ELISA and it was found that a concentration of 121 EU EU/mL corresponds to a titer of 1:800 in the Cohen assay

Time frame: At baseline, at 28 days after each vaccination and at 168 days after last vaccination

Population: Analysis was done on the Full Analysis Set (FAS), ie, subjects in All Enrolled Set who: received a study vaccination, provided evaluable serum, with results available \& who was not excluded due to protocol deviations or other reasons defined before unblinding or analysis

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.2 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline0 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.2 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.1 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.2 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.5 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline0 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.2 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.3 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.5 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline2 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.3 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline2 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.3 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.4 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline1 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.3 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.4 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.5 Participants
PlaceboNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Baseline0 Participants
PlaceboNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after third vac.0 Participants
PlaceboNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after first vac.0 Participants
PlaceboNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)Six months after third vac.0 Participants
PlaceboNumber of Subjects With High Seroresponse for Anti-LPS S. Sonnei (IgG ELISA ≥121 EU)One month after second vac.0 Participants
Secondary

Number of Subjects With Seroresponse for Anti-LPS S. Sonnei

Seroresponse is defined as: If half of the baseline value is greater than 25 ELISA Unit (EU) then an increase of at least 50% in the post-vaccination sample as compared to baseline \[i.e. ((Post-vac minus baseline)/baseline)100% ≥ 50%\]. If half of the baseline value is less or equal to 25 EU then an increase of at least 25 EU in the post-vaccination sample as compared to baseline (i.e. \[post-vac minus baseline\] ≥25 EU)

Time frame: At 28 days after each vaccination and 168 days after last vaccination

Population: Analysis was done on the Full Analysis Set (FAS), ie, subjects in All Enrolled Set who: received a study vaccination, provided evaluable serum, with results available \& who was not excluded due to protocol deviations or other reasons defined before unblinding or analysis

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.1 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.2 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.3 Participants
S. Sonnei 1790GAHB - 1 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.2 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.7 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.5 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.3 Participants
S. Sonnei 1790GAHB - 5 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.6 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.7 Participants
S. Sonnei 1790GAHB - 25 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.5 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.6 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.4 Participants
S. Sonnei 1790GAHB - 50 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.4 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.7 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.6 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.7 Participants
S. Sonnei 1790GAHB - 100 mcgNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.8 Participants
PlaceboNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after second vac.0 Participants
PlaceboNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after third vac.1 Participants
PlaceboNumber of Subjects With Seroresponse for Anti-LPS S. SonneiSix months after third vac.0 Participants
PlaceboNumber of Subjects With Seroresponse for Anti-LPS S. SonneiOne month after first vac.0 Participants

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026