Treatment of ARDS With Sivelestat Sodium (TOAWSS)

April 28, 2026 updated by: He Hongli, Sichuan Provincial People's Hospital

Efficacy of Sivelestat Sodium in the Treatment of ARDS With SIRS, a Multicenter Double-blind Randomized Controlled Clinical Trial

Neutrophil elastase (NE) released by neutrophils play an important role in inflammatory cascade and lung tissue injury of ARDS.Inhibition of NE is expected to prevent the pathophysiological process of ARDS and alleviate lung injury. Siverestat sodium is a specific inhibitor of NE, which has been proved by basic and observational clinical studies to be effective in alleviating lung injury of ARDS, but there is a lack of prospective multi-center randomized controlled clinical trials.Therefore, this study was intended to evaluate the efficacy of sivelestat sodium in the treatment of ARDS patients with SIRS in a multicenter randomized controlled clinical trial

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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.

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 (Actual)

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.
324

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.
  • Phase 4

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.
  • Name: Hongli He, Ph.D.
  • Phone Number: +86-28-87393633
  • Email: hhl0408@163.com

Study Locations

  • China
    • Sichuan Privince
      • Chengdu, Sichuan Privince, China
        • Sichuan Provincial People's Hospital

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 to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Males and females > 18 years old and <75 years old (non-pregnant, non-lactating females).
  2. Patients fulfilled the Berlin diagnostic criteria of acute respiratory distress syndrome, with a arterial oxygen partial pressure (PaO2) to fraction of inspired oxygen (FiO2) between 150 mmHg and 300 mmHg.
  3. Signed written informed consent has been obtained

Exclusion Criteria:

  1. History of chronic respiratory disease
  2. Single cardiogenic pulmonary edema
  3. Apach2 score ≥21 points
  4. Complicated with end-stage disease, or poor prognosis judged by the clinical doctor in charge
  5. ARDS course>3 days
  6. Agranulocytosis or receiving immunosuppressive agents or high doses of corticosteroids (methylprednisolone>40mg/day)
  7. Pregnancy or breastfeeding
  8. Participated in this study
  9. Do not agree to participate in this experiment

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

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.
Sham Comparator: Saline
Drug: Saline
50ml normal saline was continuously pumped in the dark for 24h. Applied for 5 consecutive days
Experimental: Sivelestat Sodium
Drug: Sivelestat sodium
4.8mg/kg sivelestat sodium was given in 50ml normal saline, and was continuously pumped in the dark for 24h, equivalent to 0.2mg/kg/h.Applied for 5 consecutive days

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
Time Frame
oxygenation improvement rate
Time Frame: day 3
day 3

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
Invasive mechanical ventilation rate
Time Frame: day 28
day 28
length of stay in ICU
Time Frame: day 28
day 28
length of stay in hospital
Time Frame: day 28
day 28
28 days mortality
Time Frame: day 28
day 28
ICU mortality
Time Frame: day 28
day 28
Incidence of acquired infections
Time Frame: day 28
day 28
oxygenation improvement rate
Time Frame: day 1
day 1
oxygenation improvement rate
Time Frame: day 5
day 5
incidence of severe adverse effect
Time Frame: day 28
day 28
activity of neutrophil elastase in plasma
Time Frame: day0
day0
activity of neutrophil elastase in plasma
Time Frame: day 1
day 1
activity of neutrophil elastase in plasma
Time Frame: day 3
day 3
activity of neutrophil elastase in plasma
Time Frame: day 5
day 5
concentration of IL-6
Time Frame: day 0
day 0
concentration of IL-6
Time Frame: day 1
day 1
concentration of IL-6
Time Frame: day 3
day 3
concentration of IL-6
Time Frame: day 5
day 5
concentration of IL-10
Time Frame: day 0
day 0
concentration of IL-10
Time Frame: day 1
day 1
concentration of IL-10
Time Frame: day 3
day 3
concentration of IL-10
Time Frame: day 5
day 5
28-day ventilator-free days
Time Frame: day 28
The 28-day VFDs is defined as the number of study days that the patient is alive and off mechanical ventilation after successful weaning. If a patient dies within 28 days, the VFD is recorded as 0.
day 28

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.
Sichuan Provincial People's 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: Xiaobo Huang, MD, Sichuan Academy of Medical Sciences

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.
April 18, 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.
September 13, 2025

Study Completion (Actual)

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.
October 6, 2025

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).
May 20, 2021

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.
May 26, 2021

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.
June 2, 2021

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.
May 4, 2026

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.
April 28, 2026

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.
April 1, 2026

More Information

Terms related to this study

Keywords

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.
  • SichuanPPHospital

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Deidentifed individual participant data are available after the article is published. Data can be accessed with the approval of the authors. Request for data can be made to the corresponding author (drhuangxb@163.com and panchun1982@gmail.com) and will be discussed during a meeting including investigators from all paticipating centers

IPD Sharing Time Frame

Deidentifed individual participant data are available after the article is published.

IPD Sharing Access Criteria

Data can be accessed with the approval of the authors. Request for data can be made to the corresponding author (drhuangxb@163.com and panchun1982@gmail.com) and will be discussed during a meeting including investigators from all paticipating centers

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

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.

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