Skip to content

Sivelestat Treatment for Postoperative Organ Protection in Type A Aortic Dissection

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

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07156656
Acronym
STOP
Enrollment
236
Registered
2025-09-05
Start date
2025-09-01
Completion date
2028-09-30
Last updated
2025-09-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type A Aortic Dissection, Organ Failure, Multiple

Keywords

Type A Aortic Dissection, SOFA, Sivelestat Sodium, Multiple Organ Failure

Brief summary

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

Interventions

PROCEDUREConventional treatment

Beside the using of Sivelestat Sodium or placebo, all postoperative care will adhere to each center's standard protocols for type A aortic dissection.

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.

DRUGPlacebo

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.

Sponsors

The First Affiliated Hospital of Anhui Medical University
CollaboratorOTHER
Fujian Provincial Hospital
CollaboratorOTHER
The University of Hong Kong-Shenzhen Hospital
CollaboratorOTHER
First Affiliated Hospital Xi'an Jiaotong University
CollaboratorOTHER
Guangdong Provincial People's Hospital
CollaboratorOTHER
Changhai Hospital
CollaboratorOTHER
Shanghai Zhongshan Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Intervention model description

a Multicenter, Double-blind RCT

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
ΔSOFA5from 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

MeasureTime frameDescription
AUC - SOFAfrom 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 tracheotomyfrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryIncidence of tracheotomy
Clinical Outcomes - Re-intubation ratefrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryRe-intubation rate
Clinical Outcomes - Gastrointestinal bleeding (count, rate)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryGastrointestinal bleeding (count, rate)
Clinical Outcomes - Infectionfrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryInfection: Serious infections such as bloodstream infections, sepsis, ventilator-associated pneumonia
Clinical Outcomes - In-hospital mortalityfrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryIn-hospital mortality
Clinical Outcomes - ICU length of stay (days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryICU length of stay (days)
Clinical Outcomes - Total hospital length of stay (days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryTotal hospital length of stay (days)
Clinical Outcomes - Ventilator-free days at day 28 (days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryMechanical ventilation includes: invasive mechanical ventilation and non-invasive mechanical ventilation
Clinical Outcomes - Invasive ventilatory support duration at day 28 (days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryInvasive ventilatory support: invasive mechanical ventilation
Clinical Outcomes - Respiratory-support-free time at day 28 (days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryRespiratory support includes: invasive mechanical ventilation, non-invasive mechanical ventilation, and high-flow oxygen
Clinical Outcomes - Organ-support-free days at day 28(days)from the entry of ICU(baseline, post-operatively) to the 28th day after surgerydays free of mechanical ventilation, vasopressors, and renal-replacement therapy
Clinical Outcomes - Central nervous system complications during ICU stayfrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryCentral nervous system complications during ICU stay: cerebral infarction, intracranial hemorrhage, hypoxic-ischemic encephalopathy
Clinical Outcomes - Delirium incidence during ICU stayfrom the entry of ICU(baseline, post-operatively) to the 28th day after surgeryDelirium incidence during ICU stay
Clinical Outcomes - Incidence of acute kidney injury (AKI)from the entry of ICU(baseline, post-operatively) to the 28th day after surgeryIncidence of acute kidney injury (AKI)
Laboratory Test Results - Arterial blood gas: pHfrom 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/FiO₂from 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/FiO₂from 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: PaO₂from 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: PaCO₂from 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: SpO₂from 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: lactatefrom 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: ASTfrom 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: ALTfrom 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: ALPfrom 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: GGTfrom 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: TBilfrom 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: DBILfrom 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: ALBfrom 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: Scrfrom 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: BUNfrom 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: eGFRfrom 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: NGALfrom 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-MBfrom 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: LDHfrom 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 cTnTfrom 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-proBNPfrom 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: NSEfrom 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: CRPfrom 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: IL-6from 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-8from 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-10from 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-αfrom 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
Laboratory Test Results - Inflammation: PCTfrom 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

Other

MeasureTime frameDescription
Plasma neutrophil elastase levels (exploratory outcome)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).

Countries

China

Contacts

Primary ContactGuowei Tu
tu.guowei@zs-hospital.sh.cn86 + 13501996995
Backup ContactChenxu Lin
chenxu_lin@163.com86 + 18016402139

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026