Clinical Study of the Safety and Immunogenicity of a Recombinant Viral Vector AAV5 (Adeno-Associated Virus Type 5 )-RBD (Receptor Binding Domain)-S Vaccine for the Prevention of Coronavirus Infection (COVID-19)

NCT ID: NCT05037188

Last Updated: 2023-01-30

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

TERMINATED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-08-10

Study Completion Date

2022-04-18

Brief Summary

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A randomized, double-blind, placebo-controlled, adaptive, seamless phase I / II clinical study of the safety and immunogenicity of a recombinant viral vector AAV5-RBD-S vaccine for the prevention of coronavirus infection (COVID-19)

Detailed Description

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The study will be carried out in 2 stages. Stage 1 aims to assess the safety and immunogenicity of different doses of BCD-250 in subjects without a history of COVID-19 infection to choose the optimal dose for further investigation.

Stage 2 aims to assess the immunogenicity and safety of the chosen on stage 1 optimal BCD-250 dose compared to placebo in subjects with and without the history of COVID-19 infection.

Conditions

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Coronavirus Infection COVID-19

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Stage 1. Subjects without history of COVID-19 infection will be randomized in two treatment groups to receive different doses of BCD-250. After the last subject completes the 28 days of the main study period the safety and immunogenicity analysis will be performed. Based on these results the optimal BCD-250 dose will be selected by the Sponsor considering the Independent Data Monitoring Committee recommendations.

Stage 2. Subjects without history of COVID-19 infection (Cohort 1) and with history of COVID-19 infection (Cohort 2) will be randomized to receive either selected dose of BCD-250 or placebo.
Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators
Stage 1 will be open label. The participants will receive the assigned dose of BCD-250 according to the allocation.

Stage 2 will be double blind, placebo-controlled. Investigators and subjects will be unaware of the assigned treatment (BCD-250 or placebo).

Study Groups

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COVID-19 vaccine candidate (BCD-250) low dose

The participants will receive the low dose of BCD-250

Group Type EXPERIMENTAL

Low dose BCD-250 injection

Intervention Type BIOLOGICAL

A recombinant viral vector AAV5-RBD-S vaccine

COVID-19 vaccine candidate (BCD-250) high dose

The participants will receive the high dose of BCD-250

Group Type EXPERIMENTAL

High dose BCD-250 injection

Intervention Type BIOLOGICAL

A recombinant viral vector AAV5-RBD-S vaccine

Cohort 1/COVID-19 vaccine candidate (BCD-250)

The participants will receive the selected dose of BCD-250

Group Type EXPERIMENTAL

Low dose or high dose BCD-250 injection

Intervention Type BIOLOGICAL

A recombinant viral vector AAV5-RBD-S vaccine

Cohort 1/Placebo

The participants will receive placebo

Group Type PLACEBO_COMPARATOR

Placebo injection

Intervention Type OTHER

Placebo injection

Cohort 2/COVID-19 vaccine candidate (BCD-250)

The participants will receive the selected dose of BCD-250

Group Type EXPERIMENTAL

Low dose or high dose BCD-250 injection

Intervention Type BIOLOGICAL

A recombinant viral vector AAV5-RBD-S vaccine

Cohort 2/Placebo

The participants will receive placebo

Group Type PLACEBO_COMPARATOR

Placebo injection

Intervention Type OTHER

Placebo injection

Interventions

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Low dose BCD-250 injection

A recombinant viral vector AAV5-RBD-S vaccine

Intervention Type BIOLOGICAL

High dose BCD-250 injection

A recombinant viral vector AAV5-RBD-S vaccine

Intervention Type BIOLOGICAL

Low dose or high dose BCD-250 injection

A recombinant viral vector AAV5-RBD-S vaccine

Intervention Type BIOLOGICAL

Placebo injection

Placebo injection

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Signed informed consent form
* Ability to comply with the study procedures based on the Investigator's assessment
* Males and females aged 18-60 years, inclusive, at the date of consent.
* Negative pregnancy test (for females of childbearing potential)
* Patients of childbearing potential and their partners with preserved reproductive function must agree to use reliable contraceptive methods starting from the time of informed consent for 3 months after Visit 1. This requirement does not apply to patients and their partners who underwent surgical sterilization. Reliable contraceptive methods include one barrier method in combination with one of the following: spermicides, intrauterine device/oral contraceptives.
* Cohort 1 only. Negative test for SARS-CoV-2 IgM and IgG at screening
* Cohort 2 only. Negative test for SARS-CoV-2 IgM at screening
* Cohort 2 only. Confirmed by SARS-CoV-2 RNA test, history of COVID-19 with documented recovery at least 4 month prior consent date.

Exclusion Criteria

* Positive / uncertain test for SARS-CoV-2 RNA at screening
* Cohort 1 only. Documented history of COVID-19.
* Changes on chest X-ray suggestive for pneumonia or other lung diseases at screening, excluding clinically non-significant changes in subjects with COVID-19 history on investigator's opinion.
* Prior administration of SARS-CoV-2 or other coronavirus vaccine or planning of receiving SARS-CoV-2 or other coronavirus vaccine during the study participation.
* Known contact with SARS-CoV-2 infected person or person with known contact with SARS-CoV-2 infected person, within 14 days prior to consent date.
* Any acute infectious or non-infectious disease, including convalescence period, less than 4 weeks since clinical recovery
* Positive HIV, HBV, HCV or Syphilis tests
* History of splenectomy
* History of severe allergic reactions
* History of allergic or postvaccinal reactions (anaphylactic shock, fever of 40°C or more, fainting, non-febrile convulsions etc.) after vaccine administration
* Suspicious hypersensitivity or history of hypersensitivity to any component of investigational product
* Participation in other clinical studies within 90 days prior to consent date, excluding screen failures or discontinued prior to the first investigational product administration.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Biocad

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UNINOVA clinic

Saint Petersburg, , Russia

Site Status

X7 Clinical Research

Saint Petersburg, , Russia

Site Status

Countries

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Russia

Other Identifiers

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BCD-250-1

Identifier Type: -

Identifier Source: org_study_id

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