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Aortic DissectionNCT06966687

Protective Effect of Ulinastatin and Thymosin α1 Against Negative Immune Dysregulation and Organ Dysfunction After Acute Aortic Dissection Surgery (PANDA XI)

A study testing Ulinastatin and Thymosin α1 and Ulinastatin only in people with Aortic Dissection and Aortic Dissection Aneurysm, run by Nanjing Medical University at 4 sites in China.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

Systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS) are the major causes of death in patients with acute aortic syndrome (AAS). Therefore, the prevention of SIRS and MODS is of great clinical value, and immunomodulatory therapy with thymosin alpha 1 in addition to… Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Aortic Dissection, Aortic Dissection Aneurysm
What is being tested?
Ulinastatin and Thymosin α1 and Ulinastatin only
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
4 sitesChina
Study dates
1 Apr 2025to 31 Dec 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • The patients are conformed to 2010 ACC/AHA guidelines for the diagnosis and treatment of thoracic aortic disease (TAD) within two weeks of onset;
  • Patients with acute aortic syndrome confirmed clinically and radiologically and planning to undergo emergency surgery were enrolled.
  • The patients' age between 18 ~90 years old.
  • Agree to participate in the study and sign the informed consent.

Who cannot join

  • Patients allergic to Thymosin α1 or Ulinastatin;
  • Lactating women and pregnant women;
  • Patients with mental diseases, drug and alcohol dependence;
  • Refuse to participate in this study and refuse to sign the informed consent.

Trial locations and contacts

4 sites in 1 country. Contact the study team or a site near you to ask about taking part.

China4 sites
  • Beijing Anzhen Hospital

    Beijing, Beijing Municipality

  • West China Hospital

    Chengdu, Sichuan

  • The First Affiliated Hospital of Guangzhou Medical University

    Guangzhou, Guangdong

  • Shanghai East Hospital Tongji University

    Shanghai, Shanghai Municipality

Other trials in China

About this study

Systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS) are the major causes of death in patients with acute aortic syndrome (AAS). Therefore, the prevention of SIRS and MODS is of great clinical value, and immunomodulatory therapy with thymosin alpha

1 in addition to antiinflammatory treatment may be beneficial. This study was designed to test the hypothesis that the administration of Ulinastatin and Thymosin α1 during the acute phase of AAS will result in a reduced incidence of SIRS and MODS.

Being tested
Ulinastatin and Thymosin α1, Ulinastatin only
Keywords
Aortic Dissection, inflammation
Medical subject headings
Aortic Dissection, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ulinastatin and Thymosin α1Drug

    Ulinastatin (100000U TID for 5 days) and Thymosin alpha 1 (1.6 mg q12h for 5 days) immediately after surgery

  • Ulinastatin onlyDrug

    Ulinastatin (100000U TID for 5 days) immediately after surgery

Study groups in NCT06966687
Study groupRoleWhat they receive
UT GroupExperimentalUlinastatin (100000U TID for 5 days) and Thymosin alpha 1 (1.6 mg q12h for 5 days) immediately after surgery
Receives: Drug: Ulinastatin and Thymosin α1
Control GroupActive comparatorUlinastatin (100000U TID for 5 days) immediately after surgery
Receives: Drug: Ulinastatin only

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The mean Sequential Organ Failure Assessment (SOFA) score of 7 days after surgery

    The occurrence of new-onset organ failure and new-onset persistent organ failure (Sequential Organ Failure Assessment (SOFA) score. New-onset is defined as events that occur after randomization and not present 24 hours before randomization.

    Measured: within the prior 7 days after surgery.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 May 2025
  2. Study start1 Apr 2025
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Care provider, Outcomes assessor
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06966687
Sponsor's protocol ID
PANDA XI
Status last verified
Jan 2026
First submitted
4 May 2025
Last updated
14 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Liu D, Yu Z, Yin J, Chen Y, Zhang H, Xin F, Fu H, Wan B. Effect of ulinastatin combined with thymosin alpha1 on sepsis: A systematic review and meta-analysis of Chinese and Indian patients. J Crit Care. 2017 Jun;39:259-266. doi: 10.1016/j.jcrc.2016.12.013. Epub 2016 Dec 27.

    PubMed 28069319

Questions about this trial

What is this clinical trial studying?

A study testing Ulinastatin and Thymosin α1 and Ulinastatin only in people with Aortic Dissection and Aortic Dissection Aneurysm, run by Nanjing Medical University at 4 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 14 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The mean Sequential Organ Failure Assessment (SOFA) score of 7 days after surgery (time frame: within the prior 7 days after surgery.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06966687, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Jan 2026; AzTrials last refreshed its copy on 7 Nov 2026.

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