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The Application of SERS and Metabolomics in Sepsis

NCT02213237 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 120

Last updated 2016-12-14

No results posted yet for this study

Summary

It has always been a real challenge to treat sepsis in critically ill patients. The mortality is as high as 20％ in patients with severe sepsis and 46％ with septic shock develops. Early diagnosis and early treatment are the principles. Along with appropriate resuscitation, judicious and thoughtful intravenous antibiotic therapy is the critical determinant of survival in sepsis and septic shock given that ineffective initial therapy worsens the outcome. Blood culture and subsequent susceptibility testing are the gold standard for microbiological diagnosis to direct the optimal use of antibiotic. However, this conventional approach usually takes 5-7 days to wait for the final report. Positive results were reported in only 30% of patients with sepsis and 50 to 60% septic shock. Moreover, the very low bacteria level in blood and prior use of antibiotics may prevent pathogen growth. Surface-enhanced Raman scattering (SERS) is a novel spectroscopy technique based on Raman scattering and localized surface plasma resonance (LSPR), which results in strongly enhanced Raman signals derived from molecules attached to nanometre-sized gold (Au) and silver (Ag) structures. SERS provides the structural information of biomedical molecules with ultra-sensitive characterization down to single molecular level in fast and non-destructive manner. The clinical application of SERS in sepsis will first help to recognize pathogens as well as their specific drug sensitivity, and then optimally guide the initial antibiotics usage. Plasma from twenty blood culture proven Gram positive, negative and Candida cases will separately subject to metabolomics profiling and bioinformatics analysis to establish each pathogen metabolites profile. The sensitivity and specificity of SERS and metabolomics in identifying pathogen and antibiotics-resistant strains will be evaluated. The investigators expected both techniques to play a crucial role in modern sepsis treatment and bring great impact on mortality reduction.

Conditions

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Yin-Yi Han, MD · National Taiwan University Hospital

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-07-31
Primary Completion
2016-12-31
Completion
2018-12-31

Countries

  • Taiwan

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02213237 on ClinicalTrials.gov