ZF2001 Booster Immunization Clinical Trials of 6 Months After the Completion of Basic Immunization

NCT05198063 | Completed Phase 1

• 1 other identifier: LKM-2021-NCV-JQ01
• Study Type: interventional
• Target: 300
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to evaluate the immunogenicity and safety of the recombinant novel coronavirus vaccine (CHO cells) after the booster immunization. It is planned to screen 300 subjects of 18 years old and above who have completed the basic immunization of recombinant novel coronavirus vaccine (CHO cells), to evaluate the immunogenicity and safety of the booster immunization of 6 months (window period ± 1 month) after the basic immunization. Investigate the geometric mean titer (GMT), GMI and 4 times growth rate of SARS-CoV-2 neutralizing antibody and RBD protein binding antibody 14 days, 30 days, and 6 months after booster vaccination; the incidence of all AEs within 1 month after the booster vaccination, the incidence of all serious adverse events (SAE) within 6 months after the booster vaccination.

Conditions

Prevention of COVID-19

Outcome Measures

Primary Outcomes (3)

• Immunogenicity endpoint

  Geometric mean titer (GMT) of SARS-CoV-2 neutralizing antibody and RBD protein binding antibody

  14 days after booster vaccination

• Immunogenicity endpoint

  Geometric mean titer (GMT) of SARS-CoV-2 neutralizing antibody and RBD protein binding antibody

  30 days after booster vaccination

• Immunogenicity endpoint

  Geometric mean titer (GMT) of SARS-CoV-2 neutralizing antibody and RBD protein binding antibody

  6 months after booster vaccination

Secondary Outcomes (3)

• Immunogenicity endpoint

  14 days, 30 days, and 6 months after booster vaccination

• Safety endpoint

  Within 1 month after booster vaccination

• Safety endpoint

  Within 6 months after booster vaccination

Study Arms (1)

Investigational vaccine group

EXPERIMENTAL

Recombinant novel coronavirus vaccine (CHO cells) injection, Intramuscular injection of deltoid muscle of upper arm of 25μg/0.5ml/person dose.

Biological: Recombinant novel coronavirus vaccine (CHO cells)

Interventions

Recombinant novel coronavirus vaccine (CHO cells) BIOLOGICAL

At 6 months after the basic immunization (window period ± 1 month), 1 dose of recombinant novel coronavirus vaccine (CHO cells) is vaccinated.

Investigational vaccine group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Subjects of 18 years old and above who has completed basic immunization with recombinant novel coronavirus vaccine (CHO cells) since 6 months (window period ± 1 month);
• The subjects voluntarily participate in the study, sign an informed consent form, and can provide valid identification, understand and comply with the requirements of the trial protocol;
• Female subjects of childbearing age agree to take effective contraceptive measures from the start of the study to 1 month after vaccination.

You may not qualify if:

• A confirmed case of novel coronavirus infection or asymptomatic infection or a history of positive novel coronavirus nucleic acid test;
• Patients with uncontrolled lymphoproliferative diseases, unresolved aplastic anemia, active primary immune thrombocytopenia (ITP), uncontrolled coagulopathy, etc;
• Patients with malignant tumors before and after surgery, patients undergoing chemotherapy, radiotherapy, immunotherapy, etc.; patients with organ transplantation status;
• People with uncontrolled epilepsy and other serious neurological diseases (such as transverse myelitis, Guillain-Barre syndrome, demyelinating diseases, etc.);
• Suffering from acute diseases, or acute attacks of chronic diseases, or uncontrolled severe chronic diseases, such as hypertension that cannot be controlled by drugs (systolic blood pressure ≥150mmHg and/or diastolic blood pressure ≥100mmHg);
• Previous history of severe allergies to any vaccine, or history of severe allergies to any component of the test vaccine, including aluminum preparations, such as: anaphylactic shock, allergic laryngeal edema, allergic purpura, thrombocytopenic purpura, dyspnea, vascular nerve Sexual edema, etc;
• Women who are breastfeeding or pregnant;
• In addition to completing the recombinant novel coronavirus vaccine (CHO cell) within the past 7 months, has participated or is participating in other COVID-19 related clinical trials;
• Investigators believe that any disease or condition may put the subject at an unacceptable risk; the subject cannot meet the requirements of the protocol; the situation that interferes with the assessment of the vaccine response.

Sponsors & Collaborators

• Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd.: lead

Study Sites (1)

Hunan Provincial Center for Disease Control and Prevention Preventive Medicine Clinic

Changsha, Hunan, 410005, China

Location

Study Officials

• Tao Huang, Bachelor

  Hunan Provincial Center for Disease Control and Prevention

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 4, 2022
• First Posted: January 20, 2022
• Study Start: January 10, 2022
• Primary Completion: August 31, 2022
• Study Completion: December 6, 2022
• Last Updated: June 15, 2023

Record last verified: 2023-06

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)