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Intensive Care UnitNCT03535441

HMGB1 Release From Hemorrhagic Shock Patients

An observational study of Intensive Care Unit and Hemorrhagic Shock, run by Xingui Dai at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

It is reported that high mobility group box 1 (HMGB1), a non-histone nuclear protein, can serve as an alarmin with damage associated molecular patterns to activate immune responses in the early stages of hemorrhagic shock (HS). However, the origin of HMGB1 and how it is released following HS is poorly understood. Read more about this study

Who is it for?
Ages 18 years and older
Type of treatment
Injection or infusion
How many people
18 participants
Where
1 siteChina
Study dates
17 May 2017to 11 May 2018
Phase
Observational
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • Adult, Older adult

Study population: Healthy volunteers OR Hemorrhagic shock (HS) patients enrolled in ICU

Who may be able to join

  • Hemorrhagic shock (HS) was defined as out-of-hospital systolic blood pressure (SBP) of 70 mmHg or less or SBP ranging 71 to 90 mmHg with a heart rate of 108 beats/min or more.

Who cannot join

  • pregnancy, <18 years old, more than 2,000 mL of intravenous fluids or blood before enrollment, hypothermia, drowning, asphyxia, burns, isolated penetrating head injury, time of call received by dispatch to study intervention longer than 4 h, known prisoners, and transfer from another hospital

Trial locations and contacts

1 site in 1 country.

China1 site
  • The First Hospital of Chenzhou

    Chenzhou, Hunan, 450003

Other trials in China

About this study

Official title: Evidence for SIRT1 Mediated HMGB1 Release From Kidney Cells in the Early Stages of Hemorrhagic Shock

It is reported that high mobility group box 1 (HMGB1), a non-histone nuclear protein, can serve as an alarmin with damage associated molecular patterns to activate immune responses in the early stages of hemorrhagic shock (HS). However, the origin of HMGB1 and how it is released following HS is poorly understood. In this study, we teased out this mechanism. We try to record the concentration of serum HMGB1 protein following HS in clinical patients.

Read the detailed description

The study was approved by the First People's Hospital of Chenzhou, Hunan, P.R. China. Consent was obtained from patients in their hospital course. Eighteen patients were enrolled for each group. In addition, Acute Physiological and Chronic Health Evaluation II (APACHE II) score was used to evaluate the severity and morbidity of HS patients Serial blood samples were collected at indicated time points on hospital admission for HS patients (0, 2, 4, 8, 24, and 72 h following HS). Levels of HMGB1 were detected by ELISA according to the kit manufacturer's instructions.

Keywords
hemorrhagic shock, HMGB1
Medical subject headings
Shock, Hemorrhagic, Disease

What participants receive

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

Study groups in NCT03535441
Study groupRoleWhat they receive
voluteer groupNo treatment, only blood sample collection
hemorrhagic shock groupHS was defined as out-of-hospital systolic blood pressure (SBP) of 70 mmHg or less or SBP ranging 71 to 90 mmHg with a heart rate of 108 beats/min or more. Exclusion criteria were pregnancy, <15 years old, more than 2,000 mL of intravenous fluids or blood before enrollment, hypothermia, drowning, asphyxia, burns, isolated penetrating head injury, time of call received by dispatch to study intervention longer than 4 h, known prisoners, and transfer from another hospital

What is being measured

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

  1. serum HMGB1 concentration

    the concentration of serum HMGB1 were progressively increased following Hemorrhagic shock

    Measured: 24 hours following hemorrhagic shock

Timeline

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

  1. First posted24 May 2018
  2. Study start17 May 2017
  3. Primary completion11 Apr 2018
  4. Study completion11 May 2018

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03535441
Sponsor's protocol ID
HSHMGB12018
Status last verified
May 2018
First submitted
11 May 2018
Last updated
24 May 2018
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Hemorrhagic shock (HS) is a pathologic process caused by insufficient perfusion in multiple organs, and usually initiates a systemic post-traumatic inflammation response. The resulting increased inflammation response may accelerate the multiple organ dysfunctions . Extracellular high-mobility group box 1 (HMGB1) was found to mediate inflammation during sterile and infectious injury and contributes significantly to disease pathogenesis. However, the exact role of HMGB1-mediated inflammation in HS is not fully understood. In this study, we first test the serum HMGB1 concentration in clinical HS patients and then we explored the underlying mechanism in HS animal model. An unexpected mechanism of HMGB1 released from multiple organs (especially in kidney) was found.

Publications

  • Rickenbacher A, Jang JH, Limani P, Ungethum U, Lehmann K, Oberkofler CE, Weber A, Graf R, Humar B, Clavien PA. Fasting protects liver from ischemic injury through Sirt1-mediated downregulation of circulating HMGB1 in mice. J Hepatol. 2014 Aug;61(2):301-8. doi: 10.1016/j.jhep.2014.04.010. Epub 2014 Apr 18.

    PubMed 24751831
  • Rabadi MM, Xavier S, Vasko R, Kaur K, Goligorksy MS, Ratliff BB. High-mobility group box 1 is a novel deacetylation target of Sirtuin1. Kidney Int. 2015 Jan;87(1):95-108. doi: 10.1038/ki.2014.217. Epub 2014 Jun 18.

    PubMed 24940804
  • Hwang JS, Lee WJ, Kang ES, Ham SA, Yoo T, Paek KS, Lim DS, Do JT, Seo HG. Ligand-activated peroxisome proliferator-activated receptor-delta and -gamma inhibit lipopolysaccharide-primed release of high mobility group box 1 through upregulation of SIRT1. Cell Death Dis. 2014 Oct 2;5(10):e1432. doi: 10.1038/cddis.2014.406.

    PubMed 25275593
  • Hwang JS, Choi HS, Ham SA, Yoo T, Lee WJ, Paek KS, Seo HG. Deacetylation-mediated interaction of SIRT1-HMGB1 improves survival in a mouse model of endotoxemia. Sci Rep. 2015 Nov 2;5:15971. doi: 10.1038/srep15971.

    PubMed 26522327

Questions about this trial

What is this clinical trial studying?

An observational study of Intensive Care Unit and Hemorrhagic Shock, run by Xingui Dai at 1 site 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 1 inclusion and 1 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: finished, as of the sponsor's last update on 24 May 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

serum HMGB1 concentration (time frame: 24 hours following hemorrhagic shock). 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 NCT03535441, which also lists 4 linked publications.

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 24 May 2018.

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