The purpose of this study is to select the optimal formulation of the norovirus vaccine from different concentrations of virus-like particles (VLP), Aluminum Hydroxide and MPL adjuvant (3-O-desacyl-4'-monophosphoryl lipid A) for further development.
The vaccine being tested in this study is called norovirus GI.1/GII.4 bivalent virus-like particle (VLP) vaccine adjuvanted with aluminum hydroxide and with or without monophosphoryl lipid A (MPL). The norovirus vaccine is being tested to assess different formulations of the vaccine that will then be further developed. This study will look at the number of antibodies to norovirus formed in people who take different formulations of the norovirus vaccine. The study will enroll approximately 420 patients. Participants will be randomly assigned (by chance) to one of fourteen treatment groups-which will remain undisclosed to the patient and study doctor during the study (unless there is an urgent medical need). All participants will receive a vaccination on Day 1 and Day 28 of the study. Some treatment arms will receive one dose of the norovirus vaccine and some arms will receive two. In order to keep the treatment arms undisclosed to the patient and the doctor, those randomized to the one dose groups will receive a dose of Hepatitis A vaccine on Day 1 followed by the norovirus vaccine 28 days later. Participants will be asked to record any symptoms that may be related to the vaccine or the injection site in a diary card for 7 days after each vaccination. This multi-centre trial will be conducted in Belgium. The overall time to participate in this study is up to 393 days. Participants will make 6 visits to the clinic, and will be contacted by telephone twice for follow-up assessments.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
420
Hepatitis A Vaccine IM injection
Norovirus GI.1/GII.4 bivalent VLP vaccine IM injection
Universiteit Antwerpen
Edegem, Belgium
Universitair Ziekenhuis Gent
Ghent, Belgium
Percentage of Participants With a Seroresponse (Pan-Ig ELISA)
Seroresponse was defined as 4-fold rise or greater in serum anti-norovirus antibody titers for both GI.1 virus-Like particle (VLP) and GII.4 VLP as measured by pan immunoglobulin (Pan-Ig) enzyme-linked immunosorbent assay (ELISA).
Time frame: Baseline and Day 56
Percentage of Participants With Solicited Local Adverse Events (AEs) at Injection Site After Dose 1
Solicited local AEs at injection site are defined as: pain, erythema, induration, and swelling that occurred within 7 days after each vaccination.
Time frame: Days 1 through 7
Percentage of Participants With Solicited Local Adverse Events (AEs) at Injection Site After Dose 2
Solicited local AEs at injection site are defined as: pain, erythema, induration, and swelling that occurred within 7 days after each vaccination.
Time frame: Days 28 through 34
Percentage of Participants With Solicited Systemic Adverse Events (AEs) After Dose 1
Solicited systemic AEs are defined as: headache, fatigue, myalgia, arthralgia, vomiting, and diarrhea that occurred within 7 days after each vaccination.
Time frame: Days 1 through 7
Percentage of Participants With Solicited Systemic Adverse Events (AEs) After Dose 2
Solicited systemic AEs are defined as: headache, fatigue, myalgia, arthralgia, vomiting, and diarrhea that occurred within 7 days after each vaccination.
Time frame: Days 28 through 34
Oral Body Temperature Within 7 Days After Dose 1
Oral body temperature measurement is to be performed using the thermometer provided by the site for 7 days after each vaccination. The highest body temperature observed each day will be recorded on the Diary Card also provided by the site.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Time frame: Days 1 through 7
Oral Body Temperature Within 7 Days After Dose 2
Oral body temperature measurement is to be performed using the thermometer provided by the site for 7 days after each vaccination. The highest body temperature observed each day will be recorded on the Diary Card also provided by the site.
Time frame: Days 28 through 34
Percentage of Participants With Unsolicited Adverse Events (AEs)
Unsolicited AEs are any AEs that are not solicited local or systemic AEs, as defined by this study.
Time frame: Day 1 up to Day 56
Percentage of Participants With Serious Adverse Events (SAEs)
A serious adverse event (SAE) is any untoward medical occurrence or effect that at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability / incapacity, is a congenital anomaly / birth defect or is medically important due to other reasons than the above mentioned criteria.
Time frame: Day 1 up to Day 393
Percentage of Participants With a Seroresponse on Day 28, Day 208 and Day 393 (Pan-Ig ELISA)
Seroresponse was defined as 4-fold rise or greater in serum anti-norovirus antibody titers for both GI.1 virus-Like particle (VLP) and GII.4 VLP as measured by pan immunoglobulin (Pan-Ig) enzyme-linked immunosorbent assay (ELISA). D=Day
Time frame: Baseline and Days 28, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in GI.1 VLP Antibody Titer (Pan-Ig ELISA)
The percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for GI.1 virus-like particle (VLP) as measured by pan immunoglobulin (Pan-Ig) enzyme-linked immunosorbent assay (ELISA). D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in GII.4 VLP Antibody Titer (Pan-Ig ELISA)
The percentage of participants with a 4-fold rise or greater from in serum anti-norovirus antibody titers for GII.4 virus-like particle (VLP) as measured by pan immunoglobulin (Pan-Ig) enzyme-linked immunosorbent assay (ELISA). D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Geometric Mean Titer (GMT) of GI.1 VLP Antibody Titers (Pan-Ig ELISA)
Geometric mean titer (GMT) of anti-norovirus GI.1 VLP antibody titers as measured by pan-Ig ELISA. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Geometric Mean Titer (GMT) of GII.4 VLP Antibody Titers (Pan-Ig ELISA)
Geometric mean titer (GMT) of anti-norovirus GII.4 VLP antibody titers as measured by pan-Ig ELISA. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GI.1 VLP Antibody Titers (Pan-Ig ELISA)
Geometric mean fold rise (GMFR) of anti-norovirus GI.1 VLP antibody titers as measured by pan-Ig ELISA. D=Day
Time frame: Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GII.4 VLP Antibody Titers (Pan-Ig ELISA)
Geometric mean fold rise (GMFR) of anti-norovirus GII.4 VLP antibody titers as measured by pan-Ig ELISA. D=Day
Time frame: Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum GI.1 VLP and GII.4 VLP Antibody Titers (IgA ELISA)
Percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for both GI.1 VLP and GII.4 VLP as measured by immunoglobulin A (IgA) enzyme-linked immunosorbent assay (ELISA) for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum GI.1 VLP Antibody Titers (IgA ELISA)
The percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for GI.1 virus-like particle (VLP) as measured by immunoglobulin A (IgA) enzyme-linked immunosorbent assay (ELISA) for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum GII.4 VLP Antibody Titers (IgA ELISA)
The percentage of participants with a 4-fold rise from or greater in serum anti-norovirus antibody titers for GII.4 virus-like particle (VLP) as measured by immunoglobulin A (IgA) enzyme-linked immunosorbent assay (ELISA) for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Geometric Mean Titer (GMT) of GI.1 VLP Antibody Titers (IgA ELISA)
Geometric mean titer (GMT) of anti-norovirus GI.1 VLP antibody titers as measured by IgA ELISA for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Geometric Mean Titer (GMT) of GII.4 VLP Antibody Titers (IgA ELISA)
Geometric mean titer (GMT) of anti-norovirus GII.4 VLP antibody titers as measured by IgA ELISA for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GI.1 VLP Antibody Titers (IgA ELISA)
Geometric mean fold rise (GMFR) of anti-norovirus GI.1 VLP antibody titers as measured by IgA ELISA for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GII.4 VLP Antibody Titers (IgA ELISA)
Geometric mean fold rise (GMFR) of anti-norovirus GII.4 VLP antibody titers as measured by IgA ELISA for all arms on day 28 and day 56 and for selected arms on day 208 and day 393. D=Day
Time frame: Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum Antibody Titers for GI.1 VLP and GII.4 VLP(HBGA)
Percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for both GI.1 VLP and GII.4 VLP as measured by histoblood group antigen (HBGA) binding assay. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum GI.1 VLP Antibody Titers (HBGA)
The percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for GI.1 virus-like particle (VLP) as measured by HBGA binding assay. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Percentage of Participants With a 4-Fold Rise or Greater in Serum GII.4 VLP Antibody Titers (HBGA)
The percentage of participants with a 4-fold rise or greater in serum anti-norovirus antibody titers for GII.4 virus-like particle (VLP) as measured by HBGA binding assay. D=Day
Time frame: Baseline and Days 28, 56, 208 and 393
Blocking Titers 50 (BT50) of Anti-Norovirus GI.1 VLP Antibody Titers (HBGA)
Blocking titers 50 (BT50) of anti-norovirus GI.1 VLP antibody titers as measured by HBGA binding assay. D=Day
Time frame: Baseline (Day 1) and Days 28, 56, 208 and 393
Blocking Titers 50 (BT50) of GII.4 VLP Antibody Titers (HBGA)
Blocking titers 50 (BT50) of anti-norovirus GII.4 VLP antibody titers as measured by HBGA binding assay. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GI.1 VLP Antibody Titers (HBGA)
Geometric mean fold rise (GMFR) of anti-norovirus GI.1 VLP antibody titers as measured by HBGA binding assay. D=Day
Time frame: Days 28, 56, 208 and 393
Geometric Mean Fold Rise (GMFR) of GII.4 VLP Antibody Titers (HBGA)
Geometric mean fold rise (GMFR) of anti-norovirus GII.4 VLP antibody titers as measured by the HBGA binding assay. D=Day
Time frame: Days 28, 56, 208 and 393
GMFR of Antibody Titers of a Strain Not Represented in the Investigational Vaccine: GII.4 Cincinnati (HBGA)
GMFR of anti-norovirus GII.4 Cincinnati antibody titers as measured by HBGA binding assay. D=Day
Time frame: Days 28, 56, 208 and 393
GMFR of Antibody Titers of a Strain Not Represented in the Investigational Vaccine: GII.4 Sydney (HBGA)
GMFR of anti-norovirus GII.4 Sydney antibody titers as measured by HBGA binding assay. D=Day
Time frame: Days 28, 56, 208 and 393
GMFR of Antibody Titers of Strains Not Represented in the Investigational Vaccine: Cross-Protection Assays
GMFR of anti-norovirus Cross-Protection Assays: GII.2 EC50, GI.3 EC50 and GII.4.2012 EC50 antibody titers as measured by HBGA binding assay. Data was collected for selected arms only. D=Day
Time frame: Day 56
Blocking Titers 50 (BT50) of a Strain Not Represented in the Investigational Vaccine: GII.4 Cincinnati (HBGA)
Blocking titers 50 (BT50) of anti-norovirus GII.4 Cincinnati antibody titers as measured by HBGA binding assay. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Blocking Titers 50 (BT50) of a Strain Not Represented in the Investigational Vaccine: GII.4 Sydney (HBGA)
Blocking Titers 50 (BT50) of anti-norovirus GII.4 Sydney antibody titers as measured by HBGA binding assay. D=Day
Time frame: Day 1 (Baseline) and Days 28, 56, 208 and 393
Blocking Titers 50 (BT50) of a Strain Not Represented in the Investigational Vaccine: Cross-Protection Assay: GII.2 EC50 (HBGA)
Blocking titers 50 (BT50) of anti-norovirus Cross-Protection Assay: GII.2 EC50 antibody titers as measured by HBGA binding assay. Data was collected for selected arms only. D=Day
Time frame: Day 1 (Baseline) and Day 56
Blocking Titers 50 (BT50) of a Strain Not Represented in the Investigational Vaccine: Cross-Protection Assay: GI.3 EC50 (HBGA)
Blocking titers 50 (BT50) of anti-norovirus Cross-Protection Assay: GI.3 EC50 antibody titers as measured by HBGA binding assay. Data was collected for selected arms only. D=Day
Time frame: Day 1 (Baseline) and Day 56
Blocking Titers 50 (BT50) of a Strain Not Represented in the Investigational Vaccine: Cross-Protection Assay: GII.4.2012 EC50 (HBGA)
Blocking titers 50 (BT50) of anti-norovirus Cross-Protection Assay: GII.4.2012 EC50 antibody titers as measured by HBGA binding assay. Data was collected for selected arms only. D=Day
Time frame: Day 1 (Baseline) and Day 56
Percentage of Participants With Significant New Medical Conditions
Significant new medical conditions will be evaluated by the investigator for the co-existence of any of the following conditions: Adverse events of special interest (AESIs) are predefined events for potential immune mediated disorders. All AESIs are medically evaluated to assess if they might indicate an immune-mediated disorder. Immune mediated events (IMEs) are AEs that represent a new diagnosis of a chronic medical condition that was not present or suspected prior to enrollment.
Time frame: Day 1 up to Day 56
Percentage of Participants With Any Adverse Event (AE) Leading to Withdrawal From the Study
Withdrawal due to an AE will occur if the participant experiences an AE that requires early termination because continued participation imposes an unacceptable risk to the participant's health or the participants is unwilling to continue because of the AE.
Time frame: Day 1 up to Day 56