E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prevention of gastroenteritis caused by norovirus |
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E.1.1.1 | Medical condition in easily understood language |
Prevention of gastroenteritis caused by norovirus |
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E.1.1.2 | Therapeutic area | Body processes [G] - Immune system processes [G12] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10068189 |
E.1.2 | Term | Gastroenteritis norovirus |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To select the optimal formulation of the NoV bivalent VLP vaccine from different dosages of VLP for further development:
* By assessing the seroresponse rate (percentage of subjects with ≥4-fold rises) in serum anti-NoV GI.1 VLP and GII.4 VLP antibody titers by Pan immunoglobin (Pan-Ig) enzyme-linked immunosorbent assay (ELISA).
* By assessing the safety profile of different formulations of the NoV bivalent VLP vaccine as measured by solicited local and systemic adverse events (AEs) for the period of 7 days after each vaccination and as measured by the occurrence of unsolicited AEs 28 days after each vaccination, and serious adverse events (SAEs) throughout the trial. |
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E.2.2 | Secondary objectives of the trial |
* To evaluate the geometric mean titers (GMT) and GMFRs of anti-NoV GI.1 VLP and GII.4 VLP antibody titers as measured by Pan-Ig ELISA.
* To evaluate the seroresponse rate in serum anti-NoV GI.1 VLP and/or GII.4 VLP antibody blocking titers as measured by histoblood group antigen (HBGA) binding assay.
* To evaluate Geometric Mean Blocking Titers (BT50) and GMFR of serum anti-NoV antibody titers for GI.1 VLP and GII.4 VLP as measured by the HBGA binding assay.
* To assess safety by the incidence of AEs leading to subject’s withdrawal from the trial
throughout the trial. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
* Male and female subjects aged between 6 weeks and less than 9 years at the time of enrollment.
* Subjects who are in good health at the time of entry into the trial as determined by medical history, physical examination (including vital signs) and clinical judgment of the investigator.
* The subject’s legally acceptable representative signs and dates a written, informed consent form (ICF) and any required privacy authorization prior to the initiation of any trial procedures, after the nature of the trial has been explained according to local regulatory requirements. An assent will also be obtained according to age appropriate country-specific regulations.
* Individuals who can comply with trial procedures and are available for the duration of the trial. |
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E.4 | Principal exclusion criteria |
1. Subjects with a clinically significant active infection (as assessed by
the investigator) or body temperature 38.0°C (100.4°F) or higher within
3 days of the intended date of vaccination.
2. Subjects who have received antipyretic/analgesic medications within
24 hours prior to the intended vaccine administration.
3. Known hypersensitivity or allergy to investigational vaccine
4. Subjects 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 trial.
5. Subjects with a history of any progressive or severe neurologic
disorder, seizure disorder, or neuroinflammatory disease (eg, Guillain-Barre syndrome).
6. Known or suspected impairment/alteration of immune function,
including the following:
a. Children <18 months of age with history of repeated episodes of acute
otitis media (AOM) in the first 6 months of life (AOM defined as a bulging
tympanic membrane) and not to be confused with otitis media with
effusion (OME).
b. Chronic use of oral steroids (equivalent to 20 mg/day prednisone for
≥12 weeks/≥2 mg/kg body weight/day for ≥2 weeks) within 60 days
prior to Day 1 (use of inhaled, intranasal, or topical corticosteroids is
allowed).
c. Receipt of parenteral steroids (equivalent to 20 mg/day prednisone ≥ 12 weeks/≥ 2 mg/kg body weight/day for ≥ 2 weeks) within 60 days prior to Day 1.
d. Receipt of immunostimulants within 60 days prior to Day 1.
e. Receipt of parenteral, epidural, or intra-articular immunoglobulin
preparation, blood products, and/or plasma derivatives within 3 months
prior to Day 1 or planned during the full length of the trial.
f. Receipt of immunosuppressive therapy within 6 months prior to Day 1.
g. Human immunodeficiency virus (HIV) infection or HIV-related
disease.
h. Chronic Hepatitis B or C infection.
i. Heritable immunodeficiency.
7. Abnormalities of splenic or thymic function.
8. Subjects with a known bleeding diathesis or any condition that may be
associated with a prolonged bleeding time.
9. Subjects with any serious chronic or progressive disease according to
judgment of the investigator (eg, neoplasm, insulin dependent diabetes,
cardiac, renal, or hepatic disease).
10. Subjects participating in any clinical trial with another
investigational product 30 days prior to first trial visit or intent to
participate in another clinical trial at any time during the conduct of this
trial.
11. Subjects who received any other vaccines within 14 days (for
inactivated vaccines) or 28 days (for live vaccines) prior to enrollment in
this trial.
12. Subjects who are first degree relatives of individuals involved in trial conduct.
13. Subjects with a history of autoimmune disease.
14. There may be instances when individuals meet all entry criteria
except one that relates to transient clinical circumstances (eg, body
temperature elevation or recent use of excluded medication or vaccine).
Under these circumstances, a subject may be considered eligible for trial
enrollment if the appropriate window for delay has passed,
inclusion/exclusion criteria have been rechecked, and if the subject is
confirmed to be eligible.
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E.5 End points |
E.5.1 | Primary end point(s) |
Immunogenicity
• Seroresponse rate (defined as percentage of subjects with a 4-fold rise or greater) in serum anti-NoV antibody titers for both GI.1 VLP and GII.4 VLP as measured by Pan-Ig ELISA at Day 57 (Cohort 1) and Day 140 (Cohort 2).
Safety
• Percentage of subjects with solicited local AEs of injection site pain, erythema, induration, and swelling on the day of vaccination and then daily through Day 7 after each vaccination (including the day of vaccination).
• Percentage of subjects with solicited systemic AEs of headache, fatigue, myalgia, arthralgia, vomiting (number per day/intensity), and diarrhea (number per day/consistency) for children aged 4 to <9 years; and irritability/fussiness, drowsiness, loss of appetite, vomiting (number per day/intensity), and diarrhea (number per day/consistency) for children aged 6 weeks to <4 years on the day of vaccination and daily through Day 7 after each vaccination.
• Body temperature on the day of vaccination (approximately 30 minutes and 6 hours later); then daily through Day 7 after each vaccination.
• Percentage of subjects with unsolicited AEs for 28 days after each vaccination.
• Percentage of subjects with SAEs throughout the trial. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Timepoint of evalution occuring at different points for each Primary endpoint, all stated in E.5.1 of this form. |
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E.5.2 | Secondary end point(s) |
Immunogenicity
Pan-Ig ELISA
• Seroresponse rate in serum anti-NoV GI.1 VLP antibody titers as measured by Pan-Ig ELISA on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• Seroresponse rate in serum anti-NoV GII.4 VLP antibody titers as measured by Pan-Ig ELISA on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• GMT of anti-NoV GI.1 VLP antibody titers as measured by Pan-Ig ELISA on Day 57
(Cohort 1) and Day 140 (Cohort 2).
• GMT of anti-NoV GII.4 VLP antibody titers as measured by Pan-Ig ELISA on Day 57
(Cohort 1) and Day 140 (Cohort 2).
• GMFR of anti-NoV GI.1 VLP antibody titers as measured by Pan-Ig ELISA on Day 57
(Cohort 1) and Day 140 (Cohort 2).
• GMFR of anti-NoV GII.4 VLP antibody titers as measured by Pan-Ig ELISA on Day 57
(Cohort 1) and Day 140 (Cohort 2).
HBGA Binding Assay
• Seroresponse rate in serum anti-NoV GI.1 VLP and GII.4 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• Seroresponse rate in serum anti-NoV GI.1 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• Seroresponse rate in serum anti-NoV GII.4 VLP antibody titers as measured by HBGA
binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• BT50 of anti-NoV GI.1 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• BT50 of anti-NoV GII.4 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• GMFR of anti-NoV GI.1 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
• GMFR of anti-NoV GII.4 VLP antibody titers as measured by HBGA binding assay on Day 57 (Cohort 1) and Day 140 (Cohort 2).
Safety
• Percentage of subjects with any AE leading to subject’s withdrawal from the trial - from the day of vaccination through Day 210 (Cohort 1) and Day 293 (Cohort 2). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Timepoint of evalution occuring at different points for each Secondary endpoint, all stated in E.5.2 of this form.
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 4 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 4 |
E.8.9.2 | In all countries concerned by the trial days | 0 |