Sivelestat Treatment for Postoperative Organ Protection in Type A Aortic Dissection
Type A Aortic Dissection · Organ Failure, Multiple
What this study involves
The registry says this study is recruiting. Individual locations may have different availability.
- Study type
- Interventional
- Phase
- Phase 4
- Age range
- 18 years - 75 years
- Sex eligible
- All sexes
- Healthy volunteers
- Not accepted
- Participants
- 236 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
The goal of this multicenter, double-blind, randomized controlled trial is to learn if sivelestat sodium (Siv) can protect the organ function in patients suffered operation for acute type A aortic dissection. The main questions it aims to answer are:
- Can the 3-day-treatment of Siv enlarge the Day-0-to-Day-5 drop in the organ-health score (SOFA score)?
- Can this treatment significantly shrink the area under the SOFA curve from first dose to Day 5?
- Can this treatment significantly improve the end of patients in 28 days (clinical outcomes)? Researchers will compare drug Siv to a placebo (a look-alike substance that contains no drug) to see if drug Siv works.
Participants will:
- Take drug Siv or the placebo through vein continuously for 72 hours
- Receiving regular intensive care in ICU after the operation
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
1. Age 18-75 years inclusive.
2. Written informed consent obtained before participation.
3. Confirmed acute Stanford type A aortic dissection scheduled for surgical repair.
Exclusion Criteria:
1. Life expectancy ≤ 48 hours.
2. Pregnant or lactation.
3. Severe pre-operative liver dysfunction: Child-Turcotte-Pugh score 10-15.
4. Severe pre-operative renal dysfunction: acute or chronic kidney injury meeting criteria for renal-replacement therapy.
5. Confirmed COPD or asthma.
6. Immunosuppression: long-term or \> 2 weeks continuous systemic corticosteroids.
7. Concomitant or anticipated use of immunomodulators (Xue-Bi-Jing injection, thymosin, IVIG).
8. Medical or psychological condition that would interfere with study participation, assessment, or outcomes.
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Random assignment
- Masking
- Quadruple masked
Sivelestat group
Drug: Sivelestat Sodium. Procedure: Conventional Treatment
Procedure: Conventional treatment · Drug: Sivelestat sodium
Control group
Drug: Placebo. Procedure: Conventional Treatment
Procedure: Conventional treatment · Drug: Placebo
Conventional treatment PROCEDURE
Beside the using of Sivelestat Sodium or placebo, all postoperative care will adhere to each center's standard protocols for type A aortic dissection.
Sivelestat sodium DRUG
The daily dose (4.8 mg/kg) is diluted in 48 mL of 0.9 % saline and administered as a continuous intravenous infusion over 24 hours at 2 mL/h (equivalent to 0.2 mg/kg/h) for 72 consecutive hours.
Placebo DRUG
An equal volume of placebo-containing only the excipients of sivelestat sodium and diluted to 48 mL with 0.9 % saline-will be infused at 2 mL/h for 72 consecutive hours.
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
ΔSOFA5
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the first dose)
ΔSOFA5 is defined as the decrease level of SOFA(Sequential Organ Failure Assessment) score from baseline to the fifth day. SOFA score ranges from 0\~24, the higher the score, the poorer the functionality of multiple organs.
Secondary measures
AUC - SOFA
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the first dose)
Area under the SOFA-time curve
Clinical Outcomes - Incidence of tracheotomy
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Incidence of tracheotomy
Clinical Outcomes - Re-intubation rate
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Re-intubation rate
Clinical Outcomes - Gastrointestinal bleeding (count, rate)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Gastrointestinal bleeding (count, rate)
Clinical Outcomes - Infection
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Infection: Serious infections such as bloodstream infections, sepsis, ventilator-associated pneumonia
Clinical Outcomes - In-hospital mortality
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
In-hospital mortality
Clinical Outcomes - ICU length of stay (days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
ICU length of stay (days)
Clinical Outcomes - Total hospital length of stay (days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Total hospital length of stay (days)
Clinical Outcomes - Ventilator-free days at day 28 (days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Mechanical ventilation includes: invasive mechanical ventilation and non-invasive mechanical ventilation
Clinical Outcomes - Invasive ventilatory support duration at day 28 (days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Invasive ventilatory support: invasive mechanical ventilation
Clinical Outcomes - Respiratory-support-free time at day 28 (days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Respiratory support includes: invasive mechanical ventilation, non-invasive mechanical ventilation, and high-flow oxygen
Clinical Outcomes - Organ-support-free days at day 28(days)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
days free of mechanical ventilation, vasopressors, and renal-replacement therapy
Clinical Outcomes - Central nervous system complications during ICU stay
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Central nervous system complications during ICU stay: cerebral infarction, intracranial hemorrhage, hypoxic-ischemic encephalopathy
Clinical Outcomes - Delirium incidence during ICU stay
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Delirium incidence during ICU stay
Clinical Outcomes - Incidence of acute kidney injury (AKI)
Time frame: from the entry of ICU(baseline, post-operatively) to the 28th day after surgery
Incidence of acute kidney injury (AKI)
Laboratory Test Results - Arterial blood gas: pH
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
pH result from arterial blood gas
Laboratory Test Results - Arterial blood gas: PaO₂/FiO₂
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
PaO₂/FiO₂ result from arterial blood gas
Laboratory Test Results - Arterial blood gas: SpO₂/FiO₂
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
SpO₂/FiO₂ result from arterial blood gas
Laboratory Test Results - Arterial blood gas: PaO₂
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
PaO₂ result from arterial blood gas
Laboratory Test Results - Arterial blood gas: PaCO₂
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
PaCO₂ result from arterial blood gas
Laboratory Test Results - Arterial blood gas: SpO₂
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
SpO₂ result from arterial blood gas
Laboratory Test Results - Arterial blood gas: lactate
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
lactate result from arterial blood gas
Laboratory Test Results - Liver & kidney function: AST
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
AST from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: ALT
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
ALT from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: ALP
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
ALP from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: GGT
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
GGT from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: TBil
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
TBil from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: DBIL
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
DBIL from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: ALB
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
ALB from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: Scr
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
Scr from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: BUN
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
BUN from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: eGFR
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
eGFR from Liver \& kidney function
Laboratory Test Results - Liver & kidney function: NGAL
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
NGAL from Liver \& kidney function
Laboratory Test Results - Myocardial injury: CK-MB
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
CK-MB from Myocardial injury
Laboratory Test Results - Myocardial injury: LDH
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
LDH from Myocardial injury
Laboratory Test Results - Myocardial injury: cTnI or cTnT
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
cTnI or cTnT from Myocardial injury
Laboratory Test Results - Myocardial injury: BNP or NT-proBNP
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
BNP or NT-proBNP from Myocardial injury
Laboratory Test Results - Brain injury: NSE
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
NSE result from blood test, Brain injury part
Laboratory Test Results - Inflammation: CRP
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
CRP result from Inflammation test
Laboratory Test Results - Inflammation: PCT
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
PCT result from Inflammation test
Laboratory Test Results - Inflammation: IL-6
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
IL-6 result from Inflammation test8
Laboratory Test Results - Inflammation: IL-8
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
IL-8 result from Inflammation test
Laboratory Test Results - Inflammation: IL-10
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
IL-10 result from Inflammation test
Laboratory Test Results - Inflammation: TNF-α
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the start of treatment)
TNF-α result from Inflammation test
Other measures
Plasma neutrophil elastase levels (exploratory outcome)
Time frame: from the entry of ICU(baseline, post-operatively) to the fifth day in ICU(the fifth day after the first dose)
Plasma concentration of neutrophil elastase at 1day, 3day and 5day after the first dose in 40 participants enrolled at the main center (20 per arm).
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (7)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
7 locations
The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, ChinaCompleted
Fujian Provincial HospitalFuzhou, Fujian, ChinaCompleted
Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences) (Guangdong Provincial People's Hospital Affiliated to Southern Medical University)Guangzhou, Guangdong, ChinaCompleted
The University of Hong Kong - Shenzhen HospitalShenzhen, Guangdong, ChinaCompleted
The First Affiliated Hospital of Xi'an Jiao Tong UniversityXi'an, Shaanxi, ChinaCompleted
Zhongshan Hospital, Fudan UniversityShanghai, Shanghai Municipality, ChinaCompleted
Changhai Hospital of ShanghaiShanghai, Shanghai Municipality, ChinaRecruiting
Study team and timeline
- Lead sponsor
- Shanghai Zhongshan Hospital
- Study start
- Sep 29, 2025 Actual
- Primary completion
- Jan 30, 2027 Estimated
- Study completion
- Mar 30, 2027 Estimated
- First posted
- Sep 5, 2025 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
Official study title
Assessment of the Efficacy of Sivelestat Sodium Treatment in Post-operative Organ Dysfunction in Patients With Acute Type A Aortic Dissection (STOP): a Multicenter, Double-blind RCT
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
