Dysentery, Bacillary
Conditions
Keywords
Immunogenicity, Vaccine, Immunologic Memory, GMMA, Shigella Vaccines, Shigellosis, Dysentery, Bacillary, Healthy Volunteers, Safety, Bacteria, Clinical Trials, Phase 1, Shigella sonnei
Brief summary
GVGH Shigella Sonnei 1970GAHB is a vaccine aimed at preventing the disease caused by Shigella sonnei. A post-hoc analysis of subjects who participated in the parent study showed significantly different responses in subjects with detectable versus undetectable antibody titres at baseline, suggesting the possibility that the vaccine might not be sufficiently immunogenic in completely naïve adults. This study was then designed to further characterize the immunogenicity profile of the vaccine and to evaluate whether it was able to induce an immunological memory response.
Interventions
BIOLOGICALGVGH Shigella sonnei 1790GAHB vaccine
Single dose administered at Day 1, by intramuscular injection.
Sponsors
GlaxoSmithKline
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
22 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Males and females, aged 22 to 50 years, who were previously vaccinated, with either vaccine (3 doses) or placebo, in H03\_01TP and who had undetectable antibody titers at baseline, or Males and females, aged 22 to 50 years, who were not part of H03\_01TP. * 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. * Individuals in good health as determined by the outcome of medical history, physical examination, hematological blood tests and clinical judgment of the investigator. * If women of child-bearing potential, have a negative urinary pregnancy test prior study vaccination and willingness to use acceptable birth control measures for the entire study duration. * Individuals affiliated to a social security regimen.
Exclusion criteria
* 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. * Individuals with any progressive or severe neurological disorder, seizure disorder or Guillain-Barré syndrome. * Individuals who are not able to understand and to follow all required study procedures for the whole period of the study. * Individuals with known hepatitis B or C 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. * Progressive, unstable or uncontrolled clinical conditions. * Hypersensitivity, including allergy, to any component of vaccines, medicinal products or medical equipment whose use is foreseen in this study. * Individuals with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time. * Clinical conditions representing a contraindication to intramuscular vaccination and blood draws. * Abnormal function of the immune system resulting from: * Clinical conditions; * Systemic administration of corticosteroids for more than 14 consecutive days within 90 days prior to informed consent; * Administration of antineoplastic and immunomodulating agents or radiotherapy within 90 days prior to informed consent. * Received immunoglobulins or any blood products within 180 days prior to informed consent. * Study personnel as an immediate family or household member. * Any other clinical condition that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subject due to participation in the study. * Individuals who have received an investigational product in another clinical trial 28 days prior to first study visit or intent to receive another investigational product at any time during the conduct of this study. * 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. Inactivated influenza vaccine can be given, but only 4 weeks earlier or 4 weeks later than the date of immunization. * Individuals who have received blood, blood products, and/or plasma derivatives including parenteral immunoglobulin preparations in the past 180 days. * Individuals with body temperature \> 38.0 degrees Celsius within 3 days of intended study vaccination. * Individuals with Body Mass Index \> 30 kg/m2. * Individuals with history of substance or alcohol abuse within the past 2 years. * 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. * Females with history of stillbirth, neonatal loss, or previous infant with anomaly. * Individuals who have a previously laboratory confirmed or suspected disease caused by S. sonnei. * Individuals who have had household contact with/and or intimate exposure to an individual with laboratory confirmed S. sonnei. * 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. * Individuals with a neutrophil count value lower than 1.8 10\^9/L at screening assessment. * Individuals with human leukocyte antigen (HLA)-B27 positive and/or with history of reactive arthritis. * Previous history of Benign Ethnic Neutropenia or drug related Neutropenia and/or concomitant treatment with neutropenic agents.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Concentrations of Immunoglobulin (IgG) Against Lipopolysaccharide (LPS) S. Sonnei O-antigen | At Day 8 (7 days after vaccination) | IgG concentrations are expressed as Geometric Mean Concentrations (GMCs), as determined by the Enzyme-linked immunosorbent assay (ELISA) with Shigella sonnei (S.sonnei) O-antigen containing Lipopolysaccharide (LPS) coating antigen. Concentrations are presented as GMCs expressed in ELISA units per milliliter (EU/mL). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of Subjects With Solicited Local Adverse Events | From 30 minutes through Day 7 post-vaccination | Assessed solicited local adverse events include injection site erythema, injection site induration and injection site pain. Any symptom = occurrence of the symptom regardless of intensity grade. |
| Number of Subjects With Solicited Systemic Adverse Events | From 30 minutes through Day 7 post-vaccination | Assessed solicited systemic adverse events include arthralgia, chills, fatigue, headache, malaise, myalgia and oral fever. Other indicators of solicited adverse events include prevention of pain and/or fever and treatment of pain and/or fever. Any symptom = occurrence of the symptom regardless of intensity grade. Fever = body temperature (measured orally) equal to or above (≥) 38.0 °C. |
| Number of Subjects With Unsolicited Adverse Events | Throughout the study period (From Day 1 up to Day 85) | An unsolicited adverse event (AE) is an adverse event that was not solicited using a Subject Diary and that was spontaneously communicated by a subject who has signed the informed consent. Potential unsolicited AEs may be medically attended (defined as symptoms or illnesses requiring hospitalization, or emergency room visit, or visit to/by a health care provider), or were of concern to the subject. Any = occurrence of the symptom regardless of intensity grade. Grade 3 AE = AE that prevented daily activity. Possibly/probably related AE = AE determined by the investigator as possibly related (the administration of the investigational vaccine and AE are considered reasonably related in time and the AE could be explained by exposure to the investigational vaccine or by other causes) or probably related (exposure to the investigational vaccine and AE are reasonably related in time and no alternative explanation has been identified) to the study vaccination. |
| Number of Subjects With Serious Adverse Events (SAEs) | Throughout the study period (from Day 1 up to Day 85) | A serious adverse event is defined as an untoward medical occurrence that at any dose resulted in death, was life-threatening, required hospitalization or prolonged hospitalization, resulted in persistent or significant disability/incapacity, or in a congenital anomaly/birth defect; an important and significant medical event that may not be immediately life-threatening or resulting in death or hospitalization but, based upon appropriate medical judgment, may jeopardize the subject or may require intervention to prevent one of the other outcomes listed above. |
| Number of Subjects With Abnormal Haematological Test Values | At Day 8 (7 days after vaccination) and Day 85 (84 days after vaccination) | Assessed haematological parameters are: basophils (BAS), eosinophils (EOS), erythrocytes (ERCS), hematocrit (HCT), hemoglobin (HGB), leukocytes (LKCS), lymphocytes (LYM), monocytes (MONO), neutrophils (NEU) and platelet (PLT). |
| Anti-LPS S. Sonnei IgG Geometric Mean Ratios | At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination) | Within-subject Geometric mean ratios (GMRs) were computed for GMCs at 7, 14, 28 and 84 days after vaccination versus baseline (Day 1). The GMRs and 95% confidence intervals (CIs) were constructed by exponentiating the mean within-subject differences in log-transformed concentrations and the corresponding 95% CIs. |
| Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination) | Seroresponse is aimed to define a significant increase in post-vaccination samples based on the biological performance of this specific serology assay and it is defined as follows: - If the baseline value is greater than 50 ELISA Units (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 the baseline value is less or equal to 50 EU then an increase of at least 25 EU in the post-vaccination sample as compared to baseline \[i.e. (Postvac minus baseline) ≥ 25 EU. |
| Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination) | Anti-LPS S.sonnei antibody concentrations were assessed by ELISA. The assay cut-off value was 121 EU/mL. |
| Concentrations of IgG Against LPS S. Sonnei O-antigen | At Days 15, 29 and 85 (14, 28 and 84 days after vaccination) | Concentrations of IgG against S.sonnei O-antigen are presented as GMCs, expressed in ELISA units per milliliter (EU/mL). |
Countries
France
Participant flow
Recruitment details
A total of 35 subjects were enrolled into the study. Of these, 7 and 2 eligible subjects from the H03\_01TP parent study were enrolled into the Shigella Group and Placebo Group, respectively. 26 subjects were enrolled into the Naïve Group. All 35 subjects were vaccinated and analyzed for immunogenicity and safety.
Pre-assignment details
The subjects in Naive Group, who were not part of the H03\_01TP study, were added in order to have a more balanced number of previously unvaccinated and vaccinated subjects in the extension trial.
Participants by arm
| Arm | Count |
|---|---|
| Shigella Group Healthy male and female subjects, aged 22 to 50 years, previously primed with 3 doses of the GVGH Shigella sonnei 1790GAHB vaccine in the H03\_01TP parent study and who had undetectable antibody titers at baseline, received one intramuscular booster dose of the same vaccine in the current study, at Day 1. | 7 |
| Placebo Group Healthy male and female subjects, aged 22 to 50 years, who previously received placebo in the H03\_01TP parent study and who had undetectable antibodies at baseline, received one intramuscular GVGH Shigella sonnei 1790GAHB vaccine dose in the current study, at Day 1. | 2 |
| Naïve Group Healthy male and female subjects, aged 22 to 50 years, who were not part of H03\_01TP parent study, received one intramuscular GVGH Shigella sonnei 1790GAHB vaccine dose in the current study, at Day 1. | 26 |
| Total | 35 |
Baseline characteristics
| Characteristic | Shigella Group | Placebo Group | Naïve Group | Total |
|---|---|---|---|---|
| Age, Continuous | 37.7 Years STANDARD_DEVIATION 7.89 | 40.5 Years STANDARD_DEVIATION 10.61 | 33.8 Years STANDARD_DEVIATION 8.41 | 34.9 Years STANDARD_DEVIATION 8.41 |
| Race/Ethnicity, Customized Black or African American | 1 Participants | 0 Participants | 1 Participants | 2 Participants |
| Race/Ethnicity, Customized Unspecified | 0 Participants | 0 Participants | 1 Participants | 1 Participants |
| Race/Ethnicity, Customized White | 6 Participants | 2 Participants | 24 Participants | 32 Participants |
| Sex: Female, Male Female | 4 Participants | 2 Participants | 9 Participants | 15 Participants |
| Sex: Female, Male Male | 3 Participants | 0 Participants | 17 Participants | 20 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 7 | 0 / 28 |
| other Total, other adverse events | 7 / 7 | 25 / 28 |
| serious Total, serious adverse events | 0 / 7 | 0 / 28 |
Outcome results
Primary
Concentrations of Immunoglobulin (IgG) Against Lipopolysaccharide (LPS) S. Sonnei O-antigen
IgG concentrations are expressed as Geometric Mean Concentrations (GMCs), as determined by the Enzyme-linked immunosorbent assay (ELISA) with Shigella sonnei (S.sonnei) O-antigen containing Lipopolysaccharide (LPS) coating antigen. Concentrations are presented as GMCs expressed in ELISA units per milliliter (EU/mL).
Time frame: At Day 8 (7 days after vaccination)
Population: The analysis was performed on the Full Analysis Set, which included all enrolled subjects who received a study vaccination and provided immunogenicity data at relevant time points.
| Arm | Measure | Value (GEOMETRIC_MEAN) |
|---|---|---|
| Shigella Group | Concentrations of Immunoglobulin (IgG) Against Lipopolysaccharide (LPS) S. Sonnei O-antigen | 168 EU/mL |
| Placebo Group | Concentrations of Immunoglobulin (IgG) Against Lipopolysaccharide (LPS) S. Sonnei O-antigen | 5.17 EU/mL |
| Naïve Group | Concentrations of Immunoglobulin (IgG) Against Lipopolysaccharide (LPS) S. Sonnei O-antigen | 38 EU/mL |
Secondary
Anti-LPS S. Sonnei IgG Geometric Mean Ratios
Within-subject Geometric mean ratios (GMRs) were computed for GMCs at 7, 14, 28 and 84 days after vaccination versus baseline (Day 1). The GMRs and 95% confidence intervals (CIs) were constructed by exponentiating the mean within-subject differences in log-transformed concentrations and the corresponding 95% CIs.
Time frame: At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination)
Population: The analysis was performed on the Full Analysis Set, which included all enrolled subjects who received a study vaccination and who provided immunogenicity data at relevant time points.
| Arm | Measure | Group | Value (GEOMETRIC_MEAN) |
|---|---|---|---|
| Shigella Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 8/Day 1 | 6.87 Ratio |
| Shigella Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 15/Day 1 | 36 Ratio |
| Shigella Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 29/Day 1 | 26 Ratio |
| Shigella Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 85/Day 1 | 18 Ratio |
| Placebo Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 85/Day 1 | 13 Ratio |
| Placebo Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 8/Day 1 | 1.49 Ratio |
| Placebo Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 29/Day 1 | 10 Ratio |
| Placebo Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 15/Day 1 | 10 Ratio |
| Naïve Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 85/Day 1 | 6.11 Ratio |
| Naïve Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 15/Day 1 | 6.88 Ratio |
| Naïve Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 29/Day 1 | 7.21 Ratio |
| Naïve Group | Anti-LPS S. Sonnei IgG Geometric Mean Ratios | Day 8/Day 1 | 2.32 Ratio |
Secondary
Concentrations of IgG Against LPS S. Sonnei O-antigen
Concentrations of IgG against S.sonnei O-antigen are presented as GMCs, expressed in ELISA units per milliliter (EU/mL).
Time frame: At Days 15, 29 and 85 (14, 28 and 84 days after vaccination)
Population: The analysis was performed on the Full Analysis Set, which included all enrolled subjects who received a study vaccination and who provided immunogenicity data at relevant time points.
| Arm | Measure | Group | Value (GEOMETRIC_MEAN) |
|---|---|---|---|
| Shigella Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 29 | 623 EU/mL |
| Shigella Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 15 | 883 EU/mL |
| Shigella Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 85 | 451 EU/mL |
| Placebo Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 29 | 35 EU/mL |
| Placebo Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 15 | 36 EU/mL |
| Placebo Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 85 | 47 EU/mL |
| Naïve Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 15 | 106 EU/mL |
| Naïve Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 85 | 94 EU/mL |
| Naïve Group | Concentrations of IgG Against LPS S. Sonnei O-antigen | Day 29 | 110 EU/mL |
Secondary
Number of Subjects With Abnormal Haematological Test Values
Assessed haematological parameters are: basophils (BAS), eosinophils (EOS), erythrocytes (ERCS), hematocrit (HCT), hemoglobin (HGB), leukocytes (LKCS), lymphocytes (LYM), monocytes (MONO), neutrophils (NEU) and platelet (PLT).
Time frame: At Day 8 (7 days after vaccination) and Day 85 (84 days after vaccination)
Population: The analysis was performed on the Overall Safety Set, which included all enrolled subjects who received a study vaccination and for whom solicited and unsolicited adverse event data were available. For the purpose of this analysis, the subjects from Placebo and Naïve Groups were pooled into a single group (Placebo + Naïve Group).
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Below (Day 85) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Below (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Within (Day 8) | 6 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Below (Day 8) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Within (Day 85) | 4 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Below (Day 85) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Within (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Within (Day 8) | 6 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Above (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Above (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Within (Day 85) | 4 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Above (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Within (Day 85) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Below (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Within (baseline) - Within (Day 8) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Below (Day 8) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Within (baseline) - Within (Day 8) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Above (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Within (baseline) - Within (Day 85) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Within (Day 8) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Within (baseline) - Within (Day 8) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Above (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Within (Day 8) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Within (baseline) - Within (Day 85) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Above (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Below (Day 85) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Within (baseline) - Within (Day 8) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Below (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Within (baseline) - Within (Day 85) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Below (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Below (Day 8) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Within (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Within (Day 85) | 4 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Within (baseline) - Within (Day 85) | 7 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Below (Day 8) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Within (Day 85) | 6 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Below (Day 85) | 1 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Within (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Below (Day 8) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Above (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Within (Day 85) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Above (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Above (Day 85) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Below (Day 8) | 2 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Within (Day 8) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Below (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Within (Day 8) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Within (Day 8) | 5 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Within (Day 8) | 0 Participants |
| Shigella Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Below (Day 8) | 2 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Within (Day 8) | 3 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Within (Day 8) | 21 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Within (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Below (Day 85) | 2 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Below (Day 85) | 2 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Within (Day 85) | 4 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Within (Day 85) | 20 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Within (Day 85) | 4 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Within (Day 85) | 22 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Below (baseline) - Above (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Within (baseline) - Above (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | EOS, Above (baseline) - Above (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Within (Day 8) | 26 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Within (baseline) - Within (Day 85) | 27 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | ERCS, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Within (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Within (Day 8) | 26 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Below (Day 85) | 2 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Within (baseline) - Within (Day 85) | 26 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HCT, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Within (Day 8) | 27 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Within (baseline) - Within (Day 85) | 26 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Below (Day 8) | 2 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Within (Day 8) | 25 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Above (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Above (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Above (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Below (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Within (baseline) - Within (Day 8) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Within (baseline) - Within (Day 8) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Within (baseline) - Within (Day 85) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | MONO, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Within (baseline) - Within (Day 8) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Within (baseline) - Within (Day 85) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | NEU, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Below (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Within (baseline) - Within (Day 8) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Within (baseline) - Within (Day 85) | 28 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | PLT, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | HGB, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Above (baseline) - Within (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Below (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Within (Day 85) | 26 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Within (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Below (baseline) - Above (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Within (baseline) - Above (Day 85) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LKCS, Above (baseline) - Above (Day 85) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Below (Day 8) | 3 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Below (Day 8) | 1 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Above (baseline) - Below (Day 8) | 0 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Below (baseline) - Within (Day 8) | 3 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | LYM, Within (baseline) - Within (Day 8) | 21 Participants |
| Placebo Group | Number of Subjects With Abnormal Haematological Test Values | BAS, Within (baseline) - Within (Day 85) | 28 Participants |
Secondary
Number of Subjects With Serious Adverse Events (SAEs)
A serious adverse event is defined as an untoward medical occurrence that at any dose resulted in death, was life-threatening, required hospitalization or prolonged hospitalization, resulted in persistent or significant disability/incapacity, or in a congenital anomaly/birth defect; an important and significant medical event that may not be immediately life-threatening or resulting in death or hospitalization but, based upon appropriate medical judgment, may jeopardize the subject or may require intervention to prevent one of the other outcomes listed above.
Time frame: Throughout the study period (from Day 1 up to Day 85)
Population: The analysis was performed on the Overall Safety Set, which included all enrolled subjects who received a study vaccination and for whom solicited and unsolicited adverse event data were available. For the purpose of this analysis, the subjects from Placebo and Naïve Groups were pooled into a single group (Placebo+Naïve Group).
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Shigella Group | Number of Subjects With Serious Adverse Events (SAEs) | 0 Participants |
| Placebo Group | Number of Subjects With Serious Adverse Events (SAEs) | 0 Participants |
Secondary
Number of Subjects With Solicited Local Adverse Events
Assessed solicited local adverse events include injection site erythema, injection site induration and injection site pain. Any symptom = occurrence of the symptom regardless of intensity grade.
Time frame: From 30 minutes through Day 7 post-vaccination
Population: The analysis was performed on the Solicited Safety Set, which included all enrolled subjects who received a study vaccination and for whom solicited adverse event data were available. For the purpose of this analysis, the subjects from Placebo and Naïve Groups were pooled into a single group (Placebo+Naïve Group).
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Shigella Group | Number of Subjects With Solicited Local Adverse Events | Any Erythema | 1 Participants |
| Shigella Group | Number of Subjects With Solicited Local Adverse Events | Any Induration | 0 Participants |
| Shigella Group | Number of Subjects With Solicited Local Adverse Events | Any Pain | 6 Participants |
| Placebo Group | Number of Subjects With Solicited Local Adverse Events | Any Erythema | 0 Participants |
| Placebo Group | Number of Subjects With Solicited Local Adverse Events | Any Induration | 1 Participants |
| Placebo Group | Number of Subjects With Solicited Local Adverse Events | Any Pain | 24 Participants |
Secondary
Number of Subjects With Solicited Systemic Adverse Events
Assessed solicited systemic adverse events include arthralgia, chills, fatigue, headache, malaise, myalgia and oral fever. Other indicators of solicited adverse events include prevention of pain and/or fever and treatment of pain and/or fever. Any symptom = occurrence of the symptom regardless of intensity grade. Fever = body temperature (measured orally) equal to or above (≥) 38.0 °C.
Time frame: From 30 minutes through Day 7 post-vaccination
Population: The analysis was performed on the Solicited Safety Set, which included all enrolled subjects who received a study vaccination and for whom solicited adverse event data were available. For the purpose of this analysis, the subjects from Placebo and Naïve Groups were pooled into a single group (Placebo+Naïve Group).
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Chills | 1 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Myalgia | 2 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Fever | 0 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Headache | 1 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Prevention of Pain and/or Fever | 0 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Fatigue | 3 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Treatment of Pain and/or Fever | 3 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Malaise | 1 Participants |
| Shigella Group | Number of Subjects With Solicited Systemic Adverse Events | Any Arthralgia | 1 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Myalgia | 8 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Arthralgia | 3 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Chills | 1 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Fatigue | 11 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Headache | 5 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Any Malaise | 2 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Fever | 0 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Prevention of Pain and/or Fever | 0 Participants |
| Placebo Group | Number of Subjects With Solicited Systemic Adverse Events | Treatment of Pain and/or Fever | 5 Participants |
Secondary
Number of Subjects With Unsolicited Adverse Events
An unsolicited adverse event (AE) is an adverse event that was not solicited using a Subject Diary and that was spontaneously communicated by a subject who has signed the informed consent. Potential unsolicited AEs may be medically attended (defined as symptoms or illnesses requiring hospitalization, or emergency room visit, or visit to/by a health care provider), or were of concern to the subject. Any = occurrence of the symptom regardless of intensity grade. Grade 3 AE = AE that prevented daily activity. Possibly/probably related AE = AE determined by the investigator as possibly related (the administration of the investigational vaccine and AE are considered reasonably related in time and the AE could be explained by exposure to the investigational vaccine or by other causes) or probably related (exposure to the investigational vaccine and AE are reasonably related in time and no alternative explanation has been identified) to the study vaccination.
Time frame: Throughout the study period (From Day 1 up to Day 85)
Population: The analysis was performed on the Unsolicited Safety Set, which included all enrolled subjects who received a study vaccination and for whom unsolicited adverse event data were available. For the purpose of this analysis, the subjects from Placebo and Naïve Groups were pooled into a single group (Placebo+Naïve Group).
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Shigella Group | Number of Subjects With Unsolicited Adverse Events | Any AE(s) | 4 Participants |
| Shigella Group | Number of Subjects With Unsolicited Adverse Events | Grade 3 AE(s) | 0 Participants |
| Shigella Group | Number of Subjects With Unsolicited Adverse Events | Possibly/probably related AE(s) | 0 Participants |
| Placebo Group | Number of Subjects With Unsolicited Adverse Events | Any AE(s) | 7 Participants |
| Placebo Group | Number of Subjects With Unsolicited Adverse Events | Grade 3 AE(s) | 0 Participants |
| Placebo Group | Number of Subjects With Unsolicited Adverse Events | Possibly/probably related AE(s) | 1 Participants |
Secondary
Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL
Anti-LPS S.sonnei antibody concentrations were assessed by ELISA. The assay cut-off value was 121 EU/mL.
Time frame: At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination)
Population: The analysis was performed on the Full Analysis Set, which included all enrolled subjects who received a study vaccination and provided immunogenicity data at relevant time points.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Shigella Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 8 | 71 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 15 | 86 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 29 | 86 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 85 | 86 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 85 | 0 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 8 | 0 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 29 | 0 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 15 | 0 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 85 | 40 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 15 | 40 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 29 | 42 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Anti-LPS S. Sonnei Concentrations Equal to or Above (≥) 121 EU/mL | Day 8 | 30 Percentage of subjects |
Secondary
Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei
Seroresponse is aimed to define a significant increase in post-vaccination samples based on the biological performance of this specific serology assay and it is defined as follows: - If the baseline value is greater than 50 ELISA Units (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 the baseline value is less or equal to 50 EU then an increase of at least 25 EU in the post-vaccination sample as compared to baseline \[i.e. (Postvac minus baseline) ≥ 25 EU.
Time frame: At Days 8, 15, 29 and 85 (7, 14, 28 and 84 days after vaccination)
Population: The analysis was performed on the Full Analysis Set, which included all enrolled subjects who received a study vaccination and provided immunogenicity data at relevant time points.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Shigella Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 15 | 100 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 29 | 100 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 8 | 86 Percentage of subjects |
| Shigella Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 85 | 100 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 15 | 50 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 8 | 0 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 29 | 100 Percentage of subjects |
| Placebo Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 85 | 100 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 29 | 67 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 8 | 26 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 15 | 72 Percentage of subjects |
| Naïve Group | Percentage of Subjects With Seroresponse for Anti-LPS S. Sonnei | Day 85 | 64 Percentage of subjects |