RecruitingNCT05017766

NCCR AntiResist:: New Approaches to Combat Antibiotic-resistant Bacteria

NCCR AntiResist: Mono-center Study to Identify New Approaches to Combat Antibiotic-resistant Bacteria.


Sponsor

University Hospital, Basel, Switzerland

Enrollment

8,000 participants

Start Date

Dec 3, 2020

Study Type

OBSERVATIONAL

Conditions

Summary

This is an explorative, mono-center study including prospectively collected patient samples from the University Hospital of Basel. It is to investigate antimicrobial resistance (AMR) including three clinical manifestations of infectious diseases: urinary tract infection, pneumonia and deep-seated infections. The focus is on four bacteria (E. coli, Klebsiella species, S. aureus, P. aeruginosa) that are part of the high priority list of World Health Organization (WHO). Residual patient samples are analysed for proteomic, metabolomic and transcriptomic analysis, immunocytochemical or fluorescence in-situ hybridisation (FISH) analysis, flow cytometry analysis (FACS) and immunophenotyping and exploration of bacterial properties.


Eligibility

Min Age: 18 Years

Inclusion Criteria11

  • Patients with confirmed (i) urinary tract infection, (ii) pneumonia (including patients after lung transplantation, cystic fibrosis) or (iii) deep-seated infection with focus pathogen:
  • E. coli
  • Klebsiella species
  • S. aureus
  • P. aeruginosa
  • Controls: no detectable bacteria in routine microbiology lab and no other infection site at inclusion of the sample and follow up for 10 days, signed general consent
  • Clinical controls without obtained samples, but with confirmed (i) urinary tract infection, (ii) pneumonia (including patients after lung transplantation, cystic fibrosis) or (iii) deep-seated infection with focus pathogen:
  • E. coli
  • Klebsiella species
  • S. aureus
  • P. aeruginosa

Exclusion Criteria4

  • Patients who have refused research and reuse of their data/samples (e.g. general consent) or any other decline (e.g. Patientenverfügung).
  • other than one of the focus bacteria in routine microbiology lab
  • Age: \<18 years
  • Controls without signed general consent

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Interventions

OTHERanalysis of antimicrobial resistance

In samples from patients infected with one of the focus pathogens (E. coli, Klebsiella species, S. aureus, P. aeruginosa) will be: (i) isolated and pathogenic bacteria characterized; (ii) pathogen in-situ properties at single-cell and bulk average determined; (iii) human metabolites, proteins and cells determined (iv) antibiotic concentration determined (v) bacterial growth monitored Deducted from the data will be: 1. relevant human components and pathogen properties that are common to most patients with similar indication 2. underlying regulatory networks and triggers in pathogen cells and human tissues. Clinical outcomes (survival/mortality) and treatment response (response or failure) will be correlated to the in vitro retrieved host and bacterial data.


Locations(1)

University Hospital Basel

Basel, Switzerland

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NCT05017766


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