A Preliminary Exploratory Cohort Study of SARS-CoV-2 Variant (Omicron BA.5) mRNA Vaccine in Participants Aged 18 Years and Over in China

NCT ID: NCT05550142

Last Updated: 2023-02-14

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: NA
• Total Enrollment: 54 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-09-16
• Study Completion Date: 2024-03-31

Brief Summary

This is a preliminary exploratory cohort study to evaluate safety, tolerability and immunogenicity of SARS-CoV-2 Variant (Omicron BA.5) mRNA Vaccine (LVRNA012) in participants aged 18 years and over in China.

Conditions

SARS-CoV-2

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: DOUBLE

Study Groups

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine 50μg

Two doses were administered by intramuscular injection, 28 days apart

Group Type: EXPERIMENTAL

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine Low dose

Intervention Type: BIOLOGICAL

50μg/dose

Placebo

Intervention Type: DRUG

Saline solution

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine 100μg

Two doses were administered by intramuscular injection, 28 days apart

Group Type: EXPERIMENTAL

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine High dose

Intervention Type: BIOLOGICAL

100μg/dose

Placebo

Intervention Type: DRUG

Saline solution

Interventions

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine Low dose

50μg/dose

Intervention Type: BIOLOGICAL

SARS-CoV-2 Variant (Omicron BA.5) mRNA vaccine High dose

100μg/dose

Intervention Type: BIOLOGICAL

Placebo

Saline solution

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Age at the time of first dose of vaccine: adults aged 18-59 years (including boundary values), elderly ≥60 years, both sexes;
• Armpit temperature <37.3℃ on the day of enrollment;
• Based on the medical history and relevant physical examination and laboratory examination results, the investigator clinically determined that the patient was in good health;
• Subjects have independent judgment ability, can read, understand and complete vaccination diary cards, and they participate voluntarily and sign an informed consent form.

Exclusion Criteria

• The subject has a history of SARS-CoV-2 or SARS infection, or has a history of contact with SARS-CoV-2 infected persons (nucleic acid test positive) or suspected infected persons within 30 days before screening, or living abroad within 30 days before screening history, or a positive SARS-CoV-2 nucleic acid test or a positive SARS-CoV-2 IgM or IgG test before the first dose of vaccine;
• History of allergy to any component of the study vaccine or a history of a severe allergic reaction to the vaccine or drug (including but not limited to anaphylactic shock, anaphylactic laryngeal edema, anaphylactic purpura, thrombocytopenic purpura, or local anaphylactic necrosis [Arthus reaction]);
• Upon questioning, have a history of COVID-19 vaccination, or have received other inactivated vaccines within 14 days before screening, and received live attenuated vaccines within 28 days;
• Patients have a medical history or family history of epilepsy, convulsions, neurological diseases and mental diseases;
• There are contraindications for intramuscular injection, such as: thrombocytopenia that has been diagnosed, any coagulation disorder or receiving anticoagulant treatment, etc.;
• The investigator judges that he is known or suspected of having more serious diseases at the same time, including but not limited to: respiratory diseases (tuberculosis, lung failure, etc.), liver and kidney diseases, cardiovascular diseases (heart failure, severe hypertension, etc.), Malignant tumor, infection or allergic skin disease, HIV infection (test report can be provided), or during the active period of acute infection or chronic disease (within 3 days before vaccination);
• Congenital malformations, developmental disorders, or chronic diseases that the investigator judges are not suitable for participating in this study (such as Downs syndrome, sickle cell anemia or neurological disorders, Guillain-Barre syndrome, etc.), excluding stable diabetes/hypertension );
• Patients with known immunological impairment or low immunological function diagnosed by the hospital before enrollment, or functional asplenia or splenectomy caused by any situation;
• Those with evidence of tobacco, alcohol, and drug abuse, and those who did not agree to abstain from smoking and drinking during the study period;
• During the screening period, laboratory tests (blood routine, urine routine, blood biochemistry, troponin, coagulation routine, D-dimer) and electrocardiogram abnormalities were clinically significant;
• Female: those who have a positive blood pregnancy test, are pregnant, breastfeeding, or have a pregnancy plan within one year; men: whose spouse has a pregnancy plan within one year;
• Patients have participated in other clinical trials (drugs, biological products or devices) within 3 months before the first dose of vaccine, or plan to participate in other clinical trials during the research period;
• Patients received immune enhancement or immunosuppressive therapy within 6 months before the first dose of vaccine (continuous oral or instillation for more than 14 days);
• Patients donated blood ≥400 ml within 28 days before screening, or received whole blood, plasma and immunoglobulin therapy within 6 months before screening;
• Currently receiving research drug treatment to prevent COVID-19;
• Patients are taking antipyretic, analgesic and anti-allergic drugs within 3 days before enrollment;
• The investigator judges that the subjects cannot follow the research procedures, comply with the agreement, or plan to permanently relocate from the area before the end of the research, or plan to leave the local area for a long time during the scheduled visit period;
• The relevant staff involved in this study or their immediate family members (such as spouses, parents, siblings or children);
• According to the investigator's judgment, there are other situations that are not suitable for participating in this clinical trial.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Ningbo Rongan Biological Pharmaceutical Co., Ltd.

INDUSTRY

Sponsor Role: collaborator

The First Affiliated Hospital of Bengbu Medical University

OTHER

Sponsor Role: collaborator

AIM Vaccine Co., Ltd.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Huan Zhou

Role: PRINCIPAL_INVESTIGATOR

The First Affiliated Hospital of Bengbu Medical University

Qiang Wu

Role: PRINCIPAL_INVESTIGATOR

The First Affiliated Hospital of Bengbu Medical University

Locations

First Affiliated Hospital Bengbu Medical College

Bengbu, Anhui, China

Countries

China

Other Identifiers

LVRNA012-IIT-02

Identifier Type: -

Identifier Source: org_study_id