Tag: 65th Joint Annual Meeting of the German Society for Hygiene and Microbiology and the German Society for Infectious Diseases (DGHM/DGI 2013)

Company News: Curetis Presents First Data on Novel Unyvero™ i60 ITI Application for Implant and Tissue Infections

New cartridge detects 114 targets

Roll-out in collaboration with Heraeus Medical expected in early 2014

Curetis AG today announced first details on its new Unyvero™ i60 ITI application for the diagnosis of implant and tissue infections. The cartridge has been developed in close collaboration with Heraeus Medical GmbH, a company focused on orthopedic biomaterials. The data were presented at this year´s 65th Joint Annual Meeting of the German Society for Hygiene and Microbiology and the German Society for Infectious Diseases (DGHM/DGI 2013) in Rostock, Germany.

The new Unyvero™ System cartridge covers a broad range of infections common after abdominal as well as bone and joint surgery, trauma (e.g. burns) or skin and soft tissue infections, including diabetic foot disease. In combination with the unique Unyvero™ L4 Lysator it is also possible to process biofilm samples, an important prerequisite for the fast and reliable diagnosis of implant infections (catheters, joints etc.).

The multiplex panel of the novel i60 application covers a total of 114 targets – 91 pathogens (gram-negative & gram-positive bacteria and fungi) and 23 resistance markers – relevant for eight clinical indications. At the conference, Curetis presented data from first evaluation studies demonstrating that the panel is able to detect pathogens in orthopedic and surgically relevant fresh and frozen samples, such as synovial and sonication fluids, swabs, and tissue material. All results were confirmed by standard microbiology culture. Of note, the i60 application also detected additional pathogens not covered by standard methods, e.g. anaerobic bacteria known to be involved in biofilm-formation on orthopedic implants.

Following the successful completion of assay development, Curetis is now running validation and verification tests. The company aims to run a clinical CE performance evaluation study this fall with a goal of obtaining CE-IVD marking for the Unyvero™ i60 ITI cartridge by the end of 2013.

Company News: Curetis Presents New Clinical Validation Data on its Unyvero™ P50 Pneumonia / LRT Application

–      Clinical studies from U.S. and Switzerland confirm previous performance data

–      Findings presented at DGHM/DGI 2013 and ICAAC 2013

Curetis AG today announced the presentation of additional clinical validation data on its Unyvero™ P50 / LRT application at two international conferences. The cartridge is designed to detect 16 respiratory bacteria and one fungus responsible for about 80% of severe non-viral pneumonia cases. In addition, it is able to simultaneously identify 22 antibiotic resistance markers.

At this year’s 53rd Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC 2013) in Denver, CO, researchers from the Northwestern Memorial Hospital (Chicago, IL) and Curetis presented data generated during the initial familiarization and training phase for the FDA trial of the Unyvero™ LRT application, an investigational device. It is based on the panel of the P50 cartridge, which is already marketed outside the U.S. In the small cohort using native clinical samples, the Unyvero™ LRT application achieved an overall sensitivity of 89% and an overall specificity of 98% for pathogen identification. Moreover, it detected 6 additional pathogens not discovered by routine microbiological culture. The resistance markers showed an overall sensitivity of 87% at an overall specificity of 97%. The authors conclude that “this data indicates that the system can significantly contribute to patient management by providing rapid pathogen identification and antimicrobial resistance profiling.”

At the 65th Joint Annual Meeting of the German Society for Hygiene and Microbiology and the German Society for Infectious Diseases (DGHM/DGI 2013) in Rostock, Germany, clinicians from the University Hospital Basel, Switzerland, presented data comparing the Unyvero™ P50 cartridge with standard microbiological culture, including anti-microbial susceptibility testing. While in 104 cases microbiology culture detected 96 pathogens evaluable by the Unyvero™ P50 cartridge, P50 detected 73 pathogens (76%). However, Unyvero™ P50 detected 68 microorganisms that were not listed in the culture report. Of these, 46% were S. pneumoniae and 10% were H. influenzae – pathogens difficult to culture or part of the oral flora for which clinical significance is not yet determined. The discrepancies are still under investigation. Phenotypic antimicrobial susceptibility or resistance was predicted correctly in 82% of cases by Unyvero™ P50. While standard culture and anti-microbial susceptibility testing took 2 to 4 days, the Unyvero™ results were obtained in less than 4.5 hours. The Basel microbiology team concluded that the “Unyvero™ Pneumonia P50 assay is able to provide fast and clinically useful results on the most prevalent pathogens causing pneumonia and their antibiotic resistance genes.”

A previous study testing more than 1,000 samples in Europe showed an overall sensitivity of 81% and an overall specificity of 96%.