Clinical Trial of Quadrivalent Recombinant Norovirus Vaccine (Pichia Pastoris)

Phase I/IIa Clinical Trial to Evaluate the Safety, Tolerability and Immunogenicity of Longkoma Quadrivalent Recombinant Norovirus Vaccine (Pichia Pastoris) Implanted in Populations of 6 Weeks and Older

The purpose of the research is to evaluate the safety and tolerability of the tetravalent recombinant Norovirus vaccine at different doses, to initially explore the immunogenicity of the vaccine, and to determine the appropriate dose of the product for later clinical trials.This trial adopts the seamless design of phase I/IIa, which is carried out in two phases, phase I and phase IIa, phase I is the age/dose climbing phase, and phase IIa is the dose expansion phase.It is planned to enroll 580 subjects, divided into 5 age groups, including: young adults (18-59 years old, 60 people), adolescents (6 -17 years old, 60 people), and elderly (≥60 years old, 160 people) , Toddlers (2-5 years old, 140), infants (6 weeks to 23 months old, 160).The test vaccine contains recombinant HuNoV GI.1-VP1 protein, HuNoV GII.3-VP1 protein, HuNoV GII.4-VP1 protein, HuNoV GII.17-VP1 protein, and each dose contains 12.5μg/type/0.5ml/bottle (Low dose), 25μg/type/0.5ml/piece (high dose).

Study Overview

• Status: Active, not recruiting
• Conditions: Acute Gastroenteritis
• Intervention / Treatment: Biological: Low-dose vaccine; Biological: High-dose vaccine; Biological: Placebo (containing aluminum); Biological: Placebo (without aluminum)

Detailed Description

A single-center, randomized, blinded, multi-cohort, placebo-controlled trial design was adopted.This trial adopts the seamless design of phase I/IIa, which is carried out in two phases, phase I and phase IIa, phase I is the age/dose climbing phase, and phase IIa is the dose expansion phase.It is planned to enroll 580 subjects, divided into 5 age groups, including: young adults (18-59 years old, 60 people), adolescents (6 -17 years old, 60 people), and elderly (≥60 years old, 160 people) , Toddlers (2-5 years old, 140), infants (6 weeks to 23 months old, 160).Research phase and trial grouping: age/dose climbing phase: 340 subjects are planned to be enrolled in Liuzhou City, and they will be enrolled in the group according to the age order of young adults → adolescents and old people → toddlers → infants and young children. There are 10 cohorts, randomly divided into experimental group (low-dose or high-dose), placebo group (containing aluminum), and the random ratio of each entry stage is 2:1. Among them, infants and the elderly will be added a placebo group without aluminum adjuvant, test group (low dose or high dose), placebo group (aluminum), placebo (aluminum-free), the random ratio is 2:1:1; Dose expansion stage: It is planned to enroll 240 subjects in Rong'an County. The elderly, infants, and infants will be divided into 3 cohorts, and each age group will be randomly divided into low-dose or high-dose groups, with a random ratio of 1:1.According to the order of young adults → adolescents and elderly → toddlers → infants and young children, the dose is from low to high, and the investigator (including the main investigator and the field investigator) will review the safety of the low-dose/placebo group 7 days after the first dose. After the safety data is confirmed, you can enter the high-dose/placebo group for this age group to explore. After DSMB examines the safety data of the first dose of young and middle-aged people to 30 days after the full exemption and confirms safety, they can enter the adolescent and elderly age group; DSMB examines the safety and confirms the safety of the first dose of adolescents and the elderly to 30 days after the full exemption After that, you can enter the infant age group; the investigator (including the main investigator and the field investigator) will review the safety data 7 days after the first dose of the infant low-dose/placebo group and confirm the safety, then you can enter the infant age group explore. The three age groups (cohorts 4 and 6, 7 and 8, 9 and 10) of the elderly, toddlers, and infants can be entered into the corresponding age after the DSMB reviews the safety data of the first dose to 30 days after the full exemption and confirms the safety. In the dose expansion phase (cohorts 11, 12, 13), 80 subjects were enrolled in each cohort (of which, 40 were vaccinated with low-dose trial vaccine and 40 were vaccinated with high-dose trial vaccine).

• Study Type: Interventional
• Enrollment (Anticipated): 580
• Phase: Phase 2; Phase 1

Contacts and Locations

• Study Contact: Name: teng huang, master; Phone Number: +86-13471177651; Email: huangt24@126.com

Study Locations

• China
  • Guangxi
    • Liuzhou, Guangxi, China, 545000
      • Liuzhou center for disease control and prevention

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 1 month and older (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Compliance with this clinical trial observation age is 6 weeks old and above, and can provide legal identification;
2. The suspected and/or violating legal guardian has the ability to understand the research procedures and sign an informed consent form;
3. Correct and/or prevent the legal guardian who has the ability to read, understand, fill in the diary card/contact card, and promise to participate regularly in accordance with the research requirements;
4. The armpit body temperature of all people on the day of entry was <37.3℃;
5. Standards for some groups of people:<12 months of age: singleton full-term pregnancy (37-42 weeks gestational week) and birth weight 2.5-4.0kg; women of childbearing age: agree to take effective contraceptive measures within 6 months after the first dose is implanted to the full exemption.

Exclusion Criteria:

1. The population laboratory test indicators specified in the plan are abnormal and have clinical significance;
2. A history of severe allergies to any component of the test vaccine, including L-histidine, sodium chloride, aluminum hydroxide, such as: anaphylactic shock, allergic laryngeal edema, allergic purpura, thrombocytopenic purpura, local allergies Necrotic reaction (Arthus reaction); or any previous history of severe side effects of vaccines or drugs, such as: allergies, urticaria, skin eczema, dyspnea, angioedema, etc.;
3. 3 days before vaccination, suffering from acute disease or in the acute attack of chronic disease (such as asthma, diabetes, thyroid disease, etc.);
4. Have taken antipyretic or analgesics within 24 hours before the first dose of vaccination;
5. Inoculate the inactivated vaccine within 7 days before the first dose of vaccine, and the live attenuated vaccine within 14 days;
6. People suffering from the following diseases:①Suffered from digestive system diseases (such as diarrhea, abdominal pain, vomiting, etc.) in the past 7 days;② Suffer from severe congenital malformations, severe developmental disorders, severe genetic defects, severe malnutrition, etc.;③ Suffering from thrombocytopenia, any coagulation disorders or receiving anticoagulant treatment and other intramuscular injection contraindications;④ Congenital or acquired immunodeficiency, or receive immunosuppressive therapy within 6 months (for example, systemic glucocorticoid prednisone or similar drugs have been used for more than 2 consecutive weeks within 6 months). Local medications (such as ointments, eye drops, inhalants or nasal sprays) should not exceed the recommended dose in the instructions or show any signs of systemic exposure;⑤ Has been diagnosed with infectious diseases, such as tuberculosis, viral hepatitis and/or human immunodeficiency virus (HIV) infection;⑥ Having convulsions, epilepsy, encephalopathy (such as congenital brain hypoplasia, brain trauma, brain tumor, cerebral hemorrhage, cerebral obstruction, infection, chemical drug poisoning, etc. caused brain nerve tissue damage, etc.) and a history of mental illness or family history;⑦ No spleen, functional asthenia, as well as any cause of asthenia or splenectomy;⑧ Suffering from severe cardiovascular disease (pulmonary heart disease, pulmonary edema), severe liver and kidney disease, diabetes with complications;
7. Have received blood or blood-related products, including immunoglobulins, within 3 months, or plan to use them during the study period (within 1 month after enrollment and full exemption);
8. Any research or unregistered products (drugs, vaccines, biological products or devices) have been used within 3 months before enrollment, or planned to be used during the research period;
9. Plan to move or leave the local area for a long time during the research period;
10. Any situation that the researcher believes may interfere with the evaluation of the research purpose;
11. Standards for certain groups of people:①<12 months old: IVF, multiple fetuses, currently suffering from perianal abscess, severe eczema, pathological jaundice, parents with HIV infection;② Persons ≥18 years of age: Physical examination before enrollment is hypertension (systolic blood pressure ≥140mmHg and/or diastolic blood pressure ≥90mmHg) or hypotension (systolic blood pressure <89mmHg) (regardless of medication);③Women of childbearing age: are breast-feeding or pregnant (including a positive urine pregnancy test) or have a pregnancy plan during the study period (in the group to within 6 months after the full exemption).

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

8

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: adults of phase I; Healthy people aged 18-59	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (containing aluminum); Active ingredients: none Other ingredients: aluminum hydroxide adjuvant: 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Experimental: teenagers of phase I; Healthy people aged 6-17	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (containing aluminum); Active ingredients: none Other ingredients: aluminum hydroxide adjuvant: 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Placebo Comparator: elderly of phase I; Healthy people 60 years old and above	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (containing aluminum); Active ingredients: none Other ingredients: aluminum hydroxide adjuvant: 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (without aluminum); Active ingredients: none Other ingredients: L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Experimental: Toddler of phase I; Healthy people aged 2-5	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (containing aluminum); Active ingredients: none Other ingredients: aluminum hydroxide adjuvant: 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Placebo Comparator: Infants of phase I; 6 weeks old-2 years old healthy person	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (containing aluminum); Active ingredients: none Other ingredients: aluminum hydroxide adjuvant: 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.; Biological: Placebo (without aluminum); Active ingredients: none Other ingredients: L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Experimental: elderly of phase II; Healthy people 60 years old and above	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Placebo Comparator: Toddler of phase II; Healthy people aged 2-5	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.
Experimental: Infants of phase II; 6 weeks old-2 years old healthy person	Biological: Low-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 12.5μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 1 μg, sodium dihydrogen phosphate: 47 μg, disodium hydrogen phosphate: 87 μg.; Biological: High-dose vaccine; Active ingredients: recombinant ReNoV GI.1-VP1 protein, recombinant ReNoV GII.3-VP1 protein, recombinant ReNoV GII.4-VP1 protein and recombinant ReNoV GII.17-VP1 protein each 25μg. Other ingredients: aluminum hydroxide adjuvant 0.25 mg, L-histidine: 1.55 mg, sodium chloride: 4 mg, Tween 80: 2 μg, sodium dihydrogen phosphate: 94 μg, disodium hydrogen phosphate: 173 μg.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The number of adverse events after intramuscular injection	The main observation methods of adverse reactions mainly include laboratory examination, local reactions and systemic reactions at the administration site.	6 months after full vaccination
The positive conversion rate of norovirus antibody 30 days after the whole course of vaccination	For young adults, the elderly, young children, infants and young children, the 4-fold growth rate of norovirus IgA, IgG, and HBGA blocking antibodies and the positive conversion rate after immunity were analyzed 30 days after the full immunization.	30 days after full immunization

Collaborators and Investigators

• Sponsor: Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd.
• Investigators: Principal Investigator: teng huang, master, Deputy Director of Vaccine Clinical Research Institute

Study record dates

Study Major Dates

• Study Start (Actual): August 5, 2020
• Primary Completion (Anticipated): February 2, 2024
• Study Completion (Anticipated): June 30, 2024

Study Registration Dates

• First Submitted: August 28, 2020
• First Submitted That Met QC Criteria: September 20, 2020
• First Posted (Actual): September 24, 2020

Study Record Updates

• Last Update Posted (Actual): March 1, 2023
• Last Update Submitted That Met QC Criteria: February 28, 2023
• Last Verified: February 1, 2023

More Information

Terms related to this study

• Keywords: prevention
• Additional Relevant MeSH Terms: Digestive System Diseases; Gastrointestinal Diseases; Gastroenteritis; Physiological Effects of Drugs; Immunologic Factors; Vaccines
• Other Study ID Numbers: LKM-2020-NoV01

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No