Efficacy and Safety of SA58 Nasal Spray in Close Contact With COVID-19 People

January 11, 2023 updated by: Sinovac Life Sciences Co., Ltd.

A Randomized, Single-blind, Placebo-controlled Clinical Trial to Evaluate the Efficacy and Safety of Anti-COVID-19 Antibody SA58 Nasal Spray, Among Close Contact With COVID-19 People

This is a randomized, single-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of SA58 nasal spray in close contact with COVID-19 people.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study is a randomized, single-blind, placebo-controlled clinical trial in close contacts to COVID-19. The investigational drug was manufactured by Sinovac Life Sciences Co. , Ltd.The purpose of this study is to estimate the efficacy and safety of SA58 nasal spray in close contacts to COVID-19. A total of 2900 subjects were planned to be enrolled,including 2300 subjects who were non-continuous exposed to COVID-19 in group A,600 subjects who were continuous exposed to COVID-19 in group B. All subjects started medication on the day of enrollment. During the medication period, the subjects were given nasal spray once every 3 hours,about 5-6 times a day.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
2900

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
      • Beijing, China
        • Beijing Ditan Hospital, Capital Medical University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects aged 18 years and above on the day of enrollment;
  • Had recent contact with an infected person, and the time of PCR sampling from a positive infected person, or the time of first contact with a positive infected person should not exceed 72 hours;
  • The subjects can understand and voluntarily sign the informed consent form;

Exclusion Criteria:

  • Previous history of severe allergy or sensitivity to inhalation allergens;
  • Women are breastfeeding, pregnant, or planning to become pregnant during the study period;
  • Participated in clinical trials of SARS-CoV-2 neutralizing antibody injections within 180 days prior to screening or clinical trials of other drugs within 4 weeks prior to screening;
  • Subjects unable to cooperate with nasal spray inhalation;
  • Body temperature at baseline (Day 0)>37.0℃;
  • Had a severe neurological disorder (epilepsy, convulsions or convulsions) or psychosis, and have a family history of psychosis;
  • The researchers determined that the subjects had a serious chronic medical condition that could interfere with the conduct or completion of the study;
  • According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Experimental Group A（ non-continuous exposure to COVID-19）
1725 participants who were non-continuous exposure to COVID-19 received nasal spray every 3 hours,about 5-6 times/day.
Drug: SA58 Nasal Spray
SA58 nasal spray , provided by Sinovac Life Sciences Co. , Ltd. mainly consists of neutralizing antibody of COVID-19, with 5 mg neutralizing antibody of COVID-19 per ml, 20 sprays per bottle.
Placebo Comparator: Control Group A（ non-continuous exposure to COVID-19）
575 participants who were non-continuous exposure to COVID-19 received nasal spray every 3 hours,about 5-6 times/day .
Drug: Placebo
Placebo was provided by Sinovac Life Sciences Co. , Ltd.
Experimental: Experimental Group B (continuous exposure to COVID-19)
400 participants who were continuous exposure to COVID-19 received nasal spray every 3 hours,about 5-6 times/day.
Drug: SA58 Nasal Spray
SA58 nasal spray , provided by Sinovac Life Sciences Co. , Ltd. mainly consists of neutralizing antibody of COVID-19, with 5 mg neutralizing antibody of COVID-19 per ml, 20 sprays per bottle.
Placebo Comparator: Control Group B(continuous exposure to COVID-19)
200 participants who were continuous exposure to COVID-19 received nasal spray every 3 hours,about 5-6 times/day.
Drug: Placebo
Placebo was provided by Sinovac Life Sciences Co. , Ltd.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of symptomatic COVID-19 cases
Time Frame: Up to 30 days(during case surveillance period)
Incidence of symptomatic COVID-19 cases confirmed by RT-PCR during case surveillance period
Up to 30 days(during case surveillance period)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Incidence of symptomatic COVID-19 cases confirmed by RT-PCR in subjects stratified by different Ct values at the time of diagnosis of primary cases(≤30, >30)
Time Frame: Up to 30 days (during case surveillance period)
Incidence of symptomatic COVID-19 cases confirmed by RT-PCR when groups were stratified according to different Ct values at the time of diagnosis of primary cases(≤30, >30) during case surveillance period.
Up to 30 days (during case surveillance period)
Incidence of symptomatic COVID-19 cases confirmed by RT-PCR in subjects stratified by actual dosing interval
Time Frame: Up to 30 days (during case surveillance period)
Incidence of symptomatic COVID-19 cases confirmed by RT-PCR in subjects stratified by actual dosing interval during case surveillance period
Up to 30 days (during case surveillance period)
The infection rate of asymptomatic COVID-19 infected people confirmed by RT-PCR
Time Frame: Up to 30 days (during case surveillance period)
The infection rate of asymptomatic COVID-19 infected people confirmed by RT-PCR during the case surveillance period.
Up to 30 days (during case surveillance period)
The incidence rate of symptomatic COVID-19 cases (mild, normal, severe and critical)
Time Frame: Up to 30 days (during case surveillance period)
The incidence rate of symptomatic COVID-19 cases (mild, normal, severe and critical)during the case surveillance period.
Up to 30 days (during case surveillance period)
The peak Ct value
Time Frame: Up to 30 days (during case surveillance period)
The peak Ct value during the period of case surveillance
Up to 30 days (during case surveillance period)
The number of days of infection
Time Frame: Up to 30 days (during case surveillance period)
The number of days of infection during the period of case surveillance.
Up to 30 days (during case surveillance period)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sinovac Life Sciences Co., Ltd.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Beijing Ditan Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ronghua Jin, Beijing Ditan Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 26, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 30, 2022

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 30, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 13, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 27, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 29, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 12, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 11, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PRO-SA58-0002

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings