ArticleOpen forum infectious diseases2026
Associations Between QuantiFERON-TB Gold Plus IFNγ Concentrations and Progression to Symptomatic Tuberculosis in Global High-Burden TB Settings.
Article in Open forum infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05190146 (A Multi-country, Epidemiologic Study to Assess the Interferon Gamma Release Assay), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Multi-country, Epidemiologic Study to Assess the Interferon Gamma Release Assay (IGRA) Positivity, and to Build Capacity to Conduct a Tuberculosis (TB) Vaccine Efficacy Study, in Populations With a High TB Disease Burden
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Authors and funding
24 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Predictive biomarkers for symptomatic tuberculosis (TB) progression would transform targeted prevention efforts. Although interferon-gamma release assays (IGRAs), including QuantiFERON® TB-Gold Plus (QFT-Plus), have been studied for this purpose, systematic evaluation of the QFT-Plus TB1 and TB2 Interferon-Gamma (IFNγ) concentrations remains limited, particularly in high-burden TB settings. Methods: Baseline TB1 and TB2 IFNγ concentrations from 5246 participants (ages 15-34 years) in TB-endemic regions were analyzed in relation to subsequent TB outcomes over a median of 525 days follow-up (NCT05190146). Participants were categorized as controls (no TB), suspected TB (no microbiological confirmation), or laboratory-confirmed TB, including a subset meeting a stringent case definition (≥2 positive microbiologic tests). Associations between baseline IFNγ concentrations and progression to symptomatic TB were assessed. Results: In the full cohort (IGRA+/- participants), baseline TB2 IFNγ concentrations were significantly higher compared with controls among participants who developed suspected TB ( Conclusions: Quantitative IFNγ concentrations from QFT-Plus, particularly TB2, were associated with progression to symptomatic TB, met or exceeded WHO-recommended sensitivity and specificity thresholds for predictive biomarkers, and may support biomarker-based stratification in TB clinical research.
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