Menu
Recruiting NCT07329595

Monitoring the Clinical and Immunological Effects of Microbiome Changes Following Severe Burn Injury

— Observational Severely Burned Patients Gut Microbiota Diversity and Composition Inflammatory Responses

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
This is an observational study: the protocol does not assign a study treatment.
Who it may be relevant to
Registry conditions: Severely Burned Patients, Gut Microbiota Diversity and Composition, Inflammatory Responses. Basic parameters: 18 years — 65 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Hungary
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Overview

The aim of this study is to longitudinally monitor dynamic changes in the gut microbiome following severe burn injury using fecal samples. Under standard nutritional protocols and intensive care management, serial fecal sampling is performed to assess alterations in microbiome diversity and composition, as well as the indirect effects of these changes on measurable inflammatory biomarkers, endocrine, hematological, immunological, and other organ-specific parameters, the clinical course, and patient outcomes.

Detailed description

Severe burn injury induces stress-related intestinal damage, leading to decreased gut perfusion, cellular injury, increased mucosal permeability, and reduced intestinal motility. These pathophysiological changes facilitate bacterial and endotoxin translocation, making the gut microbiome a major source of endogenous infection. Recent evidence indicates that the gut microbiome plays a critical role in regulating immune responses and supporting post-injury recovery, while also contributing to the development of complications such as sepsis and multi-organ failure.

The aim of this study is to longitudinally monitor dynamic changes in the gut microbiome following severe burn injury using fecal samples. Under standard nutritional protocols and intensive care management, serial fecal sampling is performed to assess alterations in microbiome diversity and composition, as well as the indirect effects of these changes on measurable inflammatory biomarkers, endocrine, hematological, immunological, and other organ-specific parameters, the clinical course, and patient outcomes. Clinical outcomes are evaluated based on mortality, length of hospital stay, duration of mechanical ventilation, incidence of secondary infections, rate of bacteremia, organ failure and its severity (assessed using the SOFA score), and wound healing.

Upon enrollment, patients undergo rectal swab collection and initial fecal sampling, followed by weekly fecal sample collection one to two times per week, alongside weekly laboratory investigations in addition to standard care. For microbiome analysis, DNA is extracted from fecal samples, followed by PCR amplification of the 16S bacterial rRNA operon. The amplified regions are sequenced, and taxa are identified based on sequence data. Relative abundances of taxa are calculated, and alpha- and beta-diversity metrics are compared within serial samples from individual patients and between patients.

Primary outcome measures

  • The abundance and bio-diversity of gut microbiota [Time frame: Day of admission, one to two times per week up to 12 weeks]

Eligibility criteria

Inclusion criteria

  • Adult patients (age between 18 and 65 years) meeting the diagnostic criteria for severe burn injury, burns involving more than 20% of the total body surface area (TBSA) and/or inhalation injury.
  • Burn injury caused by scalding, flame, electrical, contact, or chemical exposure
  • Hospital admission within 24 hours following injury

Exclusion criteria

  • Patients with inflammatory bowel diseases or malignant neoplasms.
  • Patients with a history of major gastric and/or intestinal resections
  • Patients in a pre-injury ECOG performance status of 4.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Observational model
Case-only

Study locations

Hungary · 1 center
  • University of Debrecen, Department of Anesthesiology and Intensive Care — Debrecen

Publications

  • Nakajima M, Kojiro M, Aso S, Matsui H, Fushimi K, Kaita Y, Goto H, Yamaguchi Y, Yasunaga H. Effect of high-dose vitamin C therapy on severe burn patients: a nationwide cohort study. Crit Care. 2019 Dec 12;23(1):407. doi: 10.1186/s13054-019-2693-1. PMID 31831039
  • Song MJ, Kim S, Boo D, Park C, Yoo S, Yoon HI, Cho YJ. Comparison of proton pump inhibitors and histamine 2 receptor antagonists for stress ulcer prophylaxis in the intensive care unit. Sci Rep. 2021 Sep 16;11(1):18467. doi: 10.1038/s41598-021-98069-7. PMID 34531488
  • Tanaka H, Matsuda T, Miyagantani Y, Yukioka T, Matsuda H, Shimazaki S. Reduction of resuscitation fluid volumes in severely burned patients using ascorbic acid administration: a randomized, prospective study. Arch Surg. 2000 Mar;135(3):326-31. doi: 10.1001/archsurg.135.3.326. PMID 10722036
  • Wischmeyer PE. Nutrition Therapy in Sepsis. Crit Care Clin. 2018 Jan;34(1):107-125. doi: 10.1016/j.ccc.2017.08.008. Epub 2017 Oct 13. PMID 29149933
  • Wald EL, Badke CM, Hintz LK, Spewak M, Sanchez-Pinto LN. Vitamin therapy in sepsis. Pediatr Res. 2022 Jan;91(2):328-336. doi: 10.1038/s41390-021-01673-6. Epub 2021 Jul 31. PMID 34333556
  • Kahn SA, Beers RJ, Lentz CW. Resuscitation after severe burn injury using high-dose ascorbic acid: a retrospective review. J Burn Care Res. 2011 Jan-Feb;32(1):110-7. doi: 10.1097/BCR.0b013e318204b336. PMID 21131846
  • Jeschke MG, Gauglitz GG, Kulp GA, Finnerty CC, Williams FN, Kraft R, Suman OE, Mlcak RP, Herndon DN. Long-term persistance of the pathophysiologic response to severe burn injury. PLoS One. 2011;6(7):e21245. doi: 10.1371/journal.pone.0021245. Epub 2011 Jul 18. PMID 21789167
  • Wang Y, Shu Z, Zhu W, Zhou L, Song H, Luo G. The Prognostic Value of N-Terminal pro-Brain Natriuretic Peptide (NT-proBNP) in Major Burn Patients With Sepsis. J Burn Care Res. 2022 Nov 2;43(6):1351-1357. doi: 10.1093/jbcr/irac037. PMID 35303085

Identifiers

NCT: NCT07329595 · AITT 2023/5 · RKEB/IKEB 6649/2023 · NNGYK/15506-5/2024

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗