Multi-country evaluation of RISK6, a 6-gene blood transcriptomic signature, for tuberculosis diagnosis and treatment monitoring

There is a crucial need for non-sputum-based TB tests. Here, we evaluate the performance of RISK6, a human-blood transcriptomic signature, for TB screening, triage and treatment monitoring. RISK6 performance was also compared to that of two IGRAs: one based on RD1 antigens (QuantiFERON-TB Gold Plus, QFT-P, Qiagen) and one on recombinant M. tuberculosis HBHA expressed in Mycobacterium smegmatis (IGRA-rmsHBHA). In this multicenter prospective nested case-control study conducted in Bangladesh, Georgia, Lebanon and Madagascar, adult non-immunocompromised patients with bacteriologically confirmed active pulmonary TB (ATB), latent TB infection (LTBI) and healthy donors (HD) were enrolled. ATB patients were followed-up during and after treatment. Blood RISK6 scores were assessed using quantitative real-time PCR and evaluated by area under the receiver-operating characteristic curve (ROC AUC). RISK6 performance to discriminate ATB from HD reached an AUC of 0.94 (95% CI 0.89-0.99), with 90.9% sensitivity and 87.8% specificity, thus achieving the minimal WHO target product profile for a non-sputum-based TB screening test. Besides, RISK6 yielded an AUC of 0.93 (95% CI 0.85-1) with 90.9% sensitivity and 88.5% specificity for discriminating ATB from LTBI. Moreover, RISK6 showed higher performance (AUC 0.90, 95% CI 0.85-0.94) than IGRA-rmsHBHA (AUC 0.75, 95% CI 0.69-0.82) to differentiate TB infection stages. Finally, RISK6 signature scores significantly decreased after 2 months of TB treatment and continued to decrease gradually until the end of treatment reaching scores obtained in HD. We confirmed the performance of RISK6 signature as a triage TB test and its utility for treatment monitoring.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Scientific reports - 11(2021), 1 vom: 01. Juli, Seite 13646

Sprache:

Englisch

Beteiligte Personen:

Bayaa, Rim [VerfasserIn]
Ndiaye, Mame Diarra Bousso [VerfasserIn]
Chedid, Carole [VerfasserIn]
Kokhreidze, Eka [VerfasserIn]
Tukvadze, Nestani [VerfasserIn]
Banu, Sayera [VerfasserIn]
Uddin, Mohammad Khaja Mafij [VerfasserIn]
Biswas, Samanta [VerfasserIn]
Nasrin, Rumana [VerfasserIn]
Ranaivomanana, Paulo [VerfasserIn]
Raherinandrasana, Antso Hasina [VerfasserIn]
Rakotonirina, Julio [VerfasserIn]
Rasolofo, Voahangy [VerfasserIn]
Delogu, Giovanni [VerfasserIn]
De Maio, Flavio [VerfasserIn]
Goletti, Delia [VerfasserIn]
Endtz, Hubert [VerfasserIn]
Ader, Florence [VerfasserIn]
Hamze, Monzer [VerfasserIn]
Ismail, Mohamad Bachar [VerfasserIn]
Pouzol, Stéphane [VerfasserIn]
Rakotosamimanana, Niaina [VerfasserIn]
Hoffmann, Jonathan [VerfasserIn]
HINTT working group within the GABRIEL network [VerfasserIn]
Russomando, Graciela [Sonstige Person]
Acosta, Chyntia Carolina Díaz [Sonstige Person]
Arenas, Rossana [Sonstige Person]

Links:

Volltext

Themen:

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 04.11.2021

Date Revised 16.07.2022

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-021-93059-1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM327577541