An Early Phase 1 interventional study of Recombinant Norovirus Hexavalent Vaccine and Matching Placebo in Gastroenteritis, sponsored by Syneos Health. Not yet recruiting. Open to participants aged 18 Years to 59 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-11-28.
Sponsored by Syneos Health · Early Phase 1, Interventional, and Health services research
To evaluate the safety and immunogenicity of different dose levels of the Recombinant Norovirus Hexavalent Vaccine in healthy subjects aged 18-59 years given three doses of the vaccine at 28-day intervals.
It is planned to enroll healthy subjects and adopt a 3-dose vaccination schedule (day 0 to day 56) of intramuscular injections of study vaccines in the deltoid muscle of the upper arm of subjects on day 0, day 28 and day 56, respectively. The subjects will sequentially enter into the low and high dose groups by stages, with approximately 30 subjects in each group (test group:control group = 2:1) and approximately up to 60 subjects in total. At least half of the subjects are Chinese in the two cohorts respectively
237 studies on the registry are indexed under Gastroenteritis; 16 are open to participants now.
This study's planned enrollment of 60 is below the median of 136 across 164 interventional studies indexed under Gastroenteritis.
Browse Gastroenteritis studies →Syneos Health is the lead sponsor of 22 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion criteria for the first vaccination dose
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Live vaccines
Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
at low dose,150 mg(Cohort 1 ), 20 subjects are dosed Vaccine as experimental at high dose,300mg (Cohort 2), 20 subjects are dosed Vaccine as experimental
Biological: Recombinant Norovirus Hexavalent Vaccine
at low dose,150 mg(Cohort 1 ), 10 subjects are dosed placebo at high dose, 300mg(Cohort 2),10 subjects are dosed placebo
Other: Matching Placebo
To prevent acute gastroenteritis caused by norovirus of genotypes GI.1, GII.2, GII.3, GII.4, GII.6, and GII.17
Also known as: KH002
matching placebo for Recombinant Norovirus Hexavalent Vaccine / KH002
Incidence of solicited AEs within 7 days after each vaccination dose.
Safety will be assessed through 7 days after vaccination (including the day of vaccination) via collection of solicited AEs. The solicited AEs include local AEs (injection site: pain,tenderness， induration,swelling,erythema,pruritus)and systemic AEs (Headache, Fatigue,Myalgia,Arthralgia,Vomiting, Diarrhea, Fever).
Time frame: 7 Days
Incidence of unsolicited AEs within 28 days after each vaccination dose
Unsolicited AEs are AEs other than those designated as solicited AEs, and also include eponymous solicited AEs that occur after the solicitation period. Unsolicited AEs mainly include any AEs that have been reported by the subjects, learned from interrogation or observed by the investigator during the study visits, or discovered during review of medical records or original files. the incidence of unsolicited AEs within 28 days after each dose of the study vaccine will be calculated.
Time frame: 28 Days
Incidence of AEs related to serum chemistry, hematology, and urinalysis parameters in all subjects on day 4 after each vaccination dose and on day 14, day 42 after the first dose
The number of participants with any markedly abnormal standard safety laboratory values (serum chemistry,hematology or urinalysis) collected.
Time frame: 42 days
SAE, MAAE in all subjects within 12 months after the completion of the vaccination series.
The subjects will also be monitored for SAEs, MAAEs from the first dose to 12 months after the completion of the vaccination series.
Time frame: 12 Months
GMT of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP HBGA (BT50)
GMT is geometric mean titer. HBGA is Histo-blood group antigen. Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination (up to Day 421)
Time frame: 12 Months
GMFR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP HBGA
GMFR is geometric mean fold rise. Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination (up to Day 421)
Time frame: 12 Months
SCR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP HBGA
SCR is Seroconversion rate. Seroconversion is defined as: For the subject whose antibody titer is below the lower limit of quantification before vaccination, the antibody titer is increased to the lower limit of quantification or above after vaccination; for the subject whose antibody titer is at the lower limit of quantification or above before vaccination, the antibody titer is increased at least 4-fold after vaccination. Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMT of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP Pan-Ig
predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMFR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP Pan-Ig
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
SCR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP Pan-Ig
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMT of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgA
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMFR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgA
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
SCR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgA
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMT of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgG
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
GMFR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgG
predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
SCR of Serum Anti-norovirus GI.1 and GII.2, GII.3, GII.4, GII.6, GII.17 VLP IgG
Predose 0 and 7, 14, 28 days after the first and second dose, and 7, 14, 28 days, 3, 6, 12 months after completion of full vaccination
Time frame: 12 Months
Norovirus-specific T-cell IFN-γ,IL-2, IL-4 and IL-10 levels In the high dose group.
Predose 0 and 7, 28 days after completion of full vaccination
Time frame: 28 Days
No study locations are listed for this record.
Plan to share: No
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.
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