Evidence map›Paper›PMID 41908591›Full record

ArticleInfection and drug resistance2026

Rapid Identification of Drug-Resistant Tuberculosis Using Nanopore Targeted Next-Generation Sequencing from Sputum and Culture Isolates: Accuracy and Limitations.

Thanadon Dokrungkoon, Tawatchai Chumponsuk, Kamol Suwannakarn, Orapan Sripichai, Popchai Ngamskulrungroj

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Article in Infection and drug resistance, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Thanadon DokrungkoonDepartment of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Tawatchai ChumponsukDepartment of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.ORCID 0000-0002-1313-9760
Kamol SuwannakarnDepartment of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Orapan SripichaiNational Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand.
Popchai NgamskulrungrojDepartment of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.ORCID 0000-0001-5162-5498

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Drug-resistant tuberculosis (DR-TB) complicates treatment and requires diagnostic approaches capable of comprehensive resistance profiling of Methods: DNA was extracted from 88 clinical samples, comprising 30 uncultured sputum specimens (10 MTB-positive, 10 non-tuberculous mycobacteria, and 10 mycobacteria-negative controls) to evaluate species identification, and 58 MTB culture isolates. The culture isolates represented diverse phenotypic resistance profiles, including mono-drug resistant, multidrug-resistant, and pre-extensively drug-resistant strains. tNGS profiles were compared with pDST to evaluate diagnostic performance for drug-resistance profiling, including sensitivity, specificity, and test agreement. Results: Profiling success in sputum samples was dependent on mycobacterial load. Among MTB-positive sputum specimens, 6 (60%) produced results, including 2 complete resistance profiles and 4 partial profiles limited to species identification; the remaining specimens failed due to low mycobacterial load (smear-negative and high Ct values). All NTM samples were correctly identified, and all mycobacteria-negative controls tested negative. In contrast, 57 of 58 (98.3%) culture isolates yielded complete resistance profiles. Compared with pDST, sensitivity and specificity exceeded 90% for most drugs (except streptomycin, 85.7% sensitivity), with very strong agreement (κ > 0.8). Conclusion: The ONT custom TB-DR sequencing assay provides comprehensive resistance profiling with high concordance to pDST in samples yielding complete sequencing profiles and enables species and lineage identification with a shorter analytical turnaround time compared with phenotypic testing. Performance in sputum specimens was influenced by mycobacterial load. Further studies involving larger and more diverse cohorts are needed to validate clinical applicability.

Indexed as

drug-resistant tuberculosisMycobacterium tuberculosisNanopore sequencingrapid diagnosticstNGS

Identifiers

PMID41908591
PMCPMC13021383

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.