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ABSTRACT: Background
Diagnosis of invasive candidiasis (IC) relies on insensitive cultures; the relative utility of fungal biomarkers in children is unclear.Methods
This multinational observational cohort study enrolled patients aged >120 days and <18 years with concern for IC from 1 January 2015 to 26 September 2019 at 25 centers. Blood collected at onset of symptoms was tested using T2Candida, Fungitell (1→3)-β-D-glucan, Platelia Candida Antigen (Ag) Plus, and Platelia Candida Antibody (Ab) Plus assays. Operating characteristics were determined for each biomarker, and assays meeting a defined threshold considered in combination. Sterile site cultures were the reference standard.Results
Five hundred participants were enrolled at 22 centers in 3 countries, and IC was diagnosed in 13 (2.6%). Thirteen additional blood specimens were collected and successfully spiked with Candida species, to achieve a 5.0% event rate. Valid T2Candida, Fungitell, Platelia Candida Ag Plus, and Platelia Candida Ab Plus assay results were available for 438, 467, 473, and 473 specimens, respectively. Operating characteristics for T2Candida were most optimal for detecting IC due to any Candida species, with results as follows: sensitivity, 80.0% (95% confidence interval, 59.3%-93.2%), specificity 97.1% (95.0%-98.5%), positive predictive value, 62.5% (43.7%-78.9%), and negative predictive value, 98.8% (97.2%-99.6%). Only T2Candida and Platelia Candida Ag Plus assays met the threshold for combination testing. Positive result for either yielded the following results: sensitivity, 86.4% (95% confidence interval, 65.1%- 97.1%); specificity, 94.7% (92.0%-96.7%); positive predictive value, 47.5% (31.5%-63.9%); and negative predictive value, 99.2% (97.7%-99.8%).Conclusions
T2Candida alone or in combination with Platelia Candida Ag Plus may be beneficial for rapid detection of Candida species in children with concern for IC.Clinical trials registration
NCT02220790.
SUBMITTER: Fisher BT
PROVIDER: S-EPMC9890499 | biostudies-literature | 2022 Aug
REPOSITORIES: biostudies-literature
Fisher Brian T BT Boge Craig L K CLK Xiao Rui R Shuster Sydney S Chin-Quee Dawn D Allen John J Shaheen Shareef S Hayden Randall R Suganda Sri S Zaoutis Theoklis E TE Chang Yeh Chung YC Yin Dwight E DE Huppler Anna R AR Danziger-Isakov Lara L Muller William J WJ Roilides Emmanuel E Romero José J Sue Paul K PK Berman David D Wattier Rachel L RL Halasa Natasha N Pong Alice A Maron Gabriela G Soler-Palacin Pere P Hutto Susan C SC Gonzalez Blanca E BE Salvatore Christine M CM Rajan Sujatha S Green Michael M Doby Knackstedt Elizabeth E Hauger Sarmistha B SB Steinbach William J WJ
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 20220801 2
<h4>Background</h4>Diagnosis of invasive candidiasis (IC) relies on insensitive cultures; the relative utility of fungal biomarkers in children is unclear.<h4>Methods</h4>This multinational observational cohort study enrolled patients aged >120 days and <18 years with concern for IC from 1 January 2015 to 26 September 2019 at 25 centers. Blood collected at onset of symptoms was tested using T2Candida, Fungitell (1→3)-β-D-glucan, Platelia Candida Antigen (Ag) Plus, and Platelia Candida Antibody ( ...[more]