Clinical trial NCT04991376: Specific miRNAs in Sepsis and Nephrotoxic Antibiotic Treatment
Official title: Differentiation of Acute Kidney Injury in Sepsis and Due to Nephrotoxic Antibiotic Treatment With Vancomycin and Gentamicin Based on Measurements of Specific miRNAs
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Sepsis
Septic Shock
Acute Kidney Injury
Keywords: sepsis
septic shock
acute kidney injury
microRNA
nephrotoxicity
vancomycin
gentamicin
Lead sponsor: University Hospital Ostrava
Sponsor class: OTHER
Collaborators: name: Palacky University
name: University Hospital Olomouc
name: University of Ostrava
name: Technical University of Ostrava
First posted: 2021-08-05
Enrollment: 53
Sex: ALL
Minimum age (years): 18
Maximum age (years): 95
Standard ages: ADULT
OLDER_ADULT
Observational model: CASE_ONLY
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Critically ill patients suffering from sepsis and treated with vancomycin, gentamicin, or other antibiotic groups.

Brief summary: Critically ill patients are prone to develop acute kidney injury due to sepsis itself and by administration of potentially nephrotoxic antibiotic treatment (vancomycin or gentamicin). Blood-specific miRNA levels associated with renal tubular damage change in patients treated with vancomycin or gentamicin compared to septic patients treated with other antimicrobials.

Detailed description: Sepsis is generally defined as a life-threatening and dysregulated reaction to infection (bacterial, fungal, or viral) leading to systemic inflammation and organ dysfunction including acute kidney injury \[1\]. Acute kidney injury in critically ill patients is a common and usually serious condition associated with increased patient morbidity and mortality. Critically ill patients are prone to develop acute kidney injury due to sepsis itself and by administration of potentially nephrotoxic antibiotic treatment (vancomycin or aminoglycoside-gentamicin). To prevent nephrotoxicity and avoid subtherapeutic dosing, drug serum concentrations are usually monitored, with adjustment of dose or dosing interval according to the pharmacokinetic model. However, renal tubular injury can occur even if the treatment is optimally set. In the quest for new preventive or therapeutic targets (biomarkers) in septic/nephrotoxic acute renal damage, a current research focus in microRNAs. Based on data from previously published experimental and human studies we identified specific miRNAs associated with biochemical pathways involved in inflammation, organ ischemia, and nephrotoxicity with their exact determination and time-changing detection during the seven days in studied patients. Blood-specific miRNA levels associated with renal tubular damage change in patients treated with vancomycin or gentamicin compared to septic patients treated with other antimicrobials.

Sampling method:

Whole blood samples were taken on the first, fourth, and seventh days of antibiotic treatment. The first 24 samples (8 patients) were extracted in duplicate for screening of the selected miRNAs. Blood samples were collected into 2.5 mL tubes (Vacutainer® PAXgene, PreAnalytiX® GmbH, A Qiagen/BD Company, Switzerland). Concomitant-ly, the blood samples for NGAL determination were collected into 2.6 or 2 mL neutral tubes (S-Monovette® K3 EDTA, 2.6 mL, red, Sartstedt AG \& Co. KG, Germany; or Vacuette® K3 EDTA 2 mL, violet, Greiner Bio-One GmbH, Germany). The blood samples for biochemical (renal and inflammatory) parameters (serum creatinine, interleukin-6, procalcitonin, C-reactive protein) were collected concomitantly with other dai-ly routine biochemical parameters (S-Monovette® serum-gel, 4.9 mL, brown, Sartstedt AG \& Co. KG, Germany in University Hospital Ostrava; or Vacuette® serum-gel, 5.0 mL, red, Greiner Bio-One GmbH, Germany in University Hospital Olomouc). The serum antibiotic concentrations (vancomycin and gentamicin) were monitored according to standard care in both cooperating hospitals without needing more blood samples for study.

Eligibility criteria: Inclusion Criteria:

- Critically ill adult septic patients with or without acute kidney injury treated by antimicrobial therapy

Exclusion Criteria:

- Patients in the chronic dialysis program, with stage 4 and 5 chronic kidney disease, or concomitantly treated with another potentially severe nephrotoxic medication (cisplatin, colistin) or combination vancomycin/gentamicin.

Primary outcomes:
measure: miRNAs expression over 7 days of treatment
timeFrame: 7 days
Secondary outcomes:
measure: Association between circulating miRNA expression and serum neutrophil gelatinase-associated lipocalin (NGAL) and other renal or inflammatory markers
timeFrame: 7 days
Other outcomes:
Locations:
city: Ostrava
country: Czechia
facility: University Hospital Ostrava
state: Moravian-Silesian Region
Study officials:
affiliation: University Hospital Ostrava
name: Naděžda Petejová, Assoc.Prof.,MD,PhD,MSc
role: PRINCIPAL_INVESTIGATOR
References:
citation: Singer M, Deutschman CS, Seymour CW, Shankar-Hari M, Annane D, Bauer M, Bellomo R, Bernard GR, Chiche JD, Coopersmith CM, Hotchkiss RS, Levy MM, Marshall JC, Martin GS, Opal SM, Rubenfeld GD, van der Poll T, Vincent JL, Angus DC. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA. 2016 Feb 23;315(8):801-10. doi: 10.1001/jama.2016.0287.
citation: Eckardt KU, Kasiske BL. Kidney disease: improving global outcomes. Nat Rev Nephrol. 2009 Nov;5(11):650-7. doi: 10.1038/nrneph.2009.153. Epub 2009 Sep 29.
citation: Petejova N, Martinek A, Zadrazil J, Kanova M, Klementa V, Sigutova R, Kacirova I, Hrabovsky V, Svagera Z, Stejskal D. Acute Kidney Injury in Septic Patients Treated by Selected Nephrotoxic Antibiotic Agents-Pathophysiology and Biomarkers-A Review. Int J Mol Sci. 2020 Sep 26;21(19):7115. doi: 10.3390/ijms21197115.
citation: Petejova N, Martinek A, Zadrazil J, Klementa V, Pribylova L, Bris R, Kanova M, Sigutova R, Kacirova I, Svagera Z, Bace E, Stejskal D. Expression and 7-day time course of circulating microRNAs in septic patients treated with nephrotoxic antibiotic agents. BMC Nephrol. 2022 Mar 19;23(1):111. doi: 10.1186/s12882-022-02726-6.