A Phase Ⅱ Clinical Trial of Recombinant Corona Virus Disease-19 (COVID-19) Vaccine (Sf9 Cells)

NCT ID: NCT04640402

Last Updated: 2022-06-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

960 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-17

Study Completion Date

2021-11-23

Brief Summary

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This is a phase Ⅱ, single-center, randomized, double-blind, placebo-controlled study, to evaluate the immunogenicity and safety of the recombinant COVID-19 vaccine (Sf9 cells) in the subjects from healthy adults and elderly adults aged 18 years and above (aged 18-60 and 60-85 years) with different immunization procedures (0, 21 days and 0, 14, 28 days) and doses (20μg/40μg).

Detailed Description

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This is a phase Ⅱ, single-center, randomized, double-blind, placebo-controlled study, to evaluate the immunogenicity and safety of the recombinant COVID-19 vaccine (Sf9 cells) in the subjects from healthy adults and elderly adults aged 18 years and above (aged 18-60 and 60-85 years) . The phase Ⅱ clinical trials designed 8 research group, including two immunization procedures (0, 21 days and 0, 14, 28 days), two doses (20μg/0.5ml, 40μg/1.0ml) and two ages group (adults and elder): Each group including 120 participants. Vaccination or placebo group will be randomly assigned to receive in a 5:1 ratio, 960 in total.

Conditions

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COVID-19

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Low-dose vaccine (18-59 years) & Two dose regimen

two doses of low-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Group Type EXPERIMENTAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Two dose regimen

Intervention Type BIOLOGICAL

18-59 years group, two doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Low-dose vaccine (18-59 years) & Three dose regimen

three doses of low-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Group Type EXPERIMENTAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Three dose regimen

Intervention Type BIOLOGICAL

18-59 years group, three doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

High-dose vaccine (18-59 years) & Two dose regimen

two doses of high-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Group Type EXPERIMENTAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Two dose regimen

Intervention Type BIOLOGICAL

18-59 years group, two doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

High-dose vaccine (18-59 years) & Three dose regimen

three doses of high-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Group Type EXPERIMENTAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Three dose regimen

Intervention Type BIOLOGICAL

18-59 years group, three doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Low-dose vaccine (60-85 years) & Two dose regimen

two doses of low-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Group Type EXPERIMENTAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Two dose regimen

Intervention Type BIOLOGICAL

60-85 years group, two doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Low-dose vaccine (60-85 years) & Three dose regimen

three doses of low-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Group Type EXPERIMENTAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Three dose regimen

Intervention Type BIOLOGICAL

60-85 years group, three doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

High-dose vaccine (60-85 years) & Two dose regimen

two doses of high-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Group Type EXPERIMENTAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Two dose regimen

Intervention Type BIOLOGICAL

60-85 years group, two doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

High-dose vaccine (60-85 years) & Three dose regimen

three doses of high-dose Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Group Type EXPERIMENTAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Three dose regimen

Intervention Type BIOLOGICAL

60-85 years group, three doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Low-dose placebo (18-59 years) & Two dose regimen

two doses of placebo at the schedule of day 0, 21.

Group Type PLACEBO_COMPARATOR

Low-dose placebo (18-59 years) & Two dose regimen

Intervention Type BIOLOGICAL

18-59 years group, two doses of placebo(0.5ml) at the schedule of day 0, 21.

Low-dose placebo (18-59 years) & Three dose regimen

three doses of placebo at the schedule of day 0, 14, 28.

Group Type PLACEBO_COMPARATOR

Low-dose placebo (18-59 years) & Three dose regimen

Intervention Type BIOLOGICAL

18-59 years group, three doses of placebo(0.5ml) at the schedule of day 0, 14, 28.

High-dose placebo (18-59 years) & Two dose regimen

two doses of placebo at the schedule of day 0, 21.

Group Type PLACEBO_COMPARATOR

High-dose placebo (18-59 years) & Two dose regimen

Intervention Type BIOLOGICAL

18-59 years group, two doses of placebo(1.0ml) at the schedule of day 0, 21.

High-dose placebo (18-59 years) & Three dose regimen

three doses of placebo at the schedule of day 0, 14, 28.

Group Type PLACEBO_COMPARATOR

High-dose placebo (18-59 years) & Three dose regimen

Intervention Type BIOLOGICAL

18-59 years group, three doses of placebo(1.0ml) at the schedule of day 0, 14, 28.

Low-dose placebo (60-85 years) & Two dose regimen

two doses of placebo at the schedule of day 0, 21.

Group Type PLACEBO_COMPARATOR

Low-dose placebo (60-85 years) & Two dose regimen

Intervention Type BIOLOGICAL

60-85 years group, two doses of placebo(0.5ml) at the schedule of day 0, 21.

Low-dose placebo (60-85 years) & Three dose regimen

three doses of placebo at the schedule of day 0, 14, 28.

Group Type PLACEBO_COMPARATOR

Low-dose placebo (60-85 years) & Three dose regimen

Intervention Type BIOLOGICAL

60-85 years group, three doses of placebo(0.5ml) at the schedule of day 0, 14, 28.

High-dose placebo (60-85 years) & Two dose regimen

two doses of placebo at the schedule of day 0, 21.

Group Type PLACEBO_COMPARATOR

High-dose placebo (60-85 years) & Two dose regimen

Intervention Type BIOLOGICAL

60-85 years group, two doses of placebo(1.0ml) at the schedule of day 0, 21.

High-dose placebo (60-85 years) & Three dose regimen

three doses of placebo at the schedule of day 0, 14, 28.

Group Type PLACEBO_COMPARATOR

High-dose placebo (60-85 years) & Three dose regimen

Intervention Type BIOLOGICAL

60-85 years group, three doses of placebo(1.0ml) at the schedule of day 0, 14, 28.

Interventions

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Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Two dose regimen

18-59 years group, two doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Three dose regimen

18-59 years group, three doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Two dose regimen

18-59 years group, two doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (18-59 years) & Three dose regimen

18-59 years group, three doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Two dose regimen

60-85 years group, two doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

Low-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Three dose regimen

60-85 years group, three doses of low-dose (20µg/0.5ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Two dose regimen

60-85 years group, two doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

High-dose Recombinant COVID-19 vaccine (Sf9 cells) (60-85 years) & Three dose regimen

60-85 years group, three doses of high-dose (40µg/1.0ml) Recombinant COVID-19 vaccine (Sf9 cells) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

Low-dose placebo (18-59 years) & Two dose regimen

18-59 years group, two doses of placebo(0.5ml) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

Low-dose placebo (18-59 years) & Three dose regimen

18-59 years group, three doses of placebo(0.5ml) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

High-dose placebo (18-59 years) & Two dose regimen

18-59 years group, two doses of placebo(1.0ml) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

High-dose placebo (18-59 years) & Three dose regimen

18-59 years group, three doses of placebo(1.0ml) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

Low-dose placebo (60-85 years) & Two dose regimen

60-85 years group, two doses of placebo(0.5ml) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

Low-dose placebo (60-85 years) & Three dose regimen

60-85 years group, three doses of placebo(0.5ml) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

High-dose placebo (60-85 years) & Two dose regimen

60-85 years group, two doses of placebo(1.0ml) at the schedule of day 0, 21.

Intervention Type BIOLOGICAL

High-dose placebo (60-85 years) & Three dose regimen

60-85 years group, three doses of placebo(1.0ml) at the schedule of day 0, 14, 28.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Aged 18 years and above.
* Able to understand the content of informed consent and willing to sign the informed consent.
* Able and willing to complete all the secluded study process during the whole study follow-up period (about 7 months).
* Axillary temperature ≤37.0℃.
* General good health as established by medical history and physical examination.

Exclusion Criteria

* Positive serum immunoglobulin M (IgM) and IgG to the SARS-CoV-2.
* A Known History of HIV infection
* Family history of seizure, epilepsy, brain or mental disease.
* Participant that has an allergic history to any ingredient of vaccines.
* Woman who is pregnant, breast-feeding or positive in pregnancy test on day of enrollment, or is planning to be pregnant during the next 6 months.
* Any acute fever disease or infections.
* Have a medical history of SARS.
* Have serious cardiovascular diseases, such as arrhythmia, conduction block, myocardial infarction, severe hypertension and not well-controlled.
* Major chronic illness, such as asthma, diabetes, or thyroid disease, and not well-controlled.
* Hereditary angioneurotic edema or acquired angioneurotic edema.
* Urticaria in last one year.
* Asplenia or functional asplenia.
* Platelet disorder or other bleeding disorder may cause injection contraindication.
* Faint at the sight of blood or needles.
* Prior administration of immunodepressant or corticosteroids, antianaphylactics treatment, cytotoxic treatment in last 6 months.
* Prior administration of blood products in last 4 months.
* Prior administration of other research medicines in last 1 month.
* Prior administration of attenuated vaccine in last 1 month.
* Prior administration of subunit vaccine or inactivated vaccine in last 14 days.
* Being treated for tuberculosis.
* Any condition that in the opinion of the investigators may interfere with the evaluation of study objectives.


* Patients with severe allergic reactions after the previous dose of vaccination;
* Patients with serious adverse events causally related to the previous dose of vaccination.
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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West China Hospital

OTHER

Sponsor Role collaborator

Jiangsu Province Centers for Disease Control and Prevention

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Fengcai Zhu, Doctor

Role: PRINCIPAL_INVESTIGATOR

Jiangsu Provincial Center for Disease Control and Prevention

Locations

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Jiangsu Provincial Center for Diseases Control and Prevention

Nanjing, Jiangsu, China

Site Status

Countries

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China

Other Identifiers

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JSVCT099

Identifier Type: -

Identifier Source: org_study_id

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