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. 2019 Mar 20;3(3):CD012836.
doi: 10.1002/14651858.CD012836.pub2.

Linezolid for drug-resistant pulmonary tuberculosis

Affiliations

Linezolid for drug-resistant pulmonary tuberculosis

Bhagteshwar Singh et al. Cochrane Database Syst Rev. .

Abstract

Background: Linezolid was recently re-classified as a Group A drug by the World Health Organization (WHO) for treatment of multi-drug resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB), suggesting that it should be included in the regimen for all patients unless contraindicated. Linezolid use carries a considerable risk of toxicity, with the optimal dose and duration remaining unclear. Current guidelines are mainly based on evidence from observational non-comparative studies.

Objectives: To assess the efficacy of linezolid when used as part of a second-line regimen for treating people with MDR and XDR pulmonary tuberculosis, and to assess the prevalence and severity of adverse events associated with linezolid use in this patient group.

Search methods: We searched the following databases: the Cochrane Infectious Diseases Specialized Register; CENTRAL; MEDLINE; Embase; and LILACS up to 13 July 2018. We also checked article reference lists and contacted researchers in the field.

Selection criteria: We included studies in which some participants received linezolid, and others did not. We included randomized controlled trials (RCTs) of linezolid for MDR and XDR pulmonary tuberculosis to evaluate efficacy outcomes. We added non-randomized cohort studies to evaluate adverse events.Primary outcomes were all-cause and tuberculosis-associated death, treatment failure, and cure. Secondary outcomes were treatment interrupted, treatment completed, and time to sputum culture conversion. We recorded frequency of all and serious adverse events, adverse events leading to drug discontinuation or dose reduction, and adverse events attributed to linezolid, particularly neuropathy, anaemia, and thrombocytopenia.

Data collection and analysis: Two review authors (BS and DC) independently assessed the search results for eligibility and extracted data from included studies. All review authors assessed risk of bias using the Cochrane 'Risk of bias' tool for RCTs and the ROBINS-I tool for non-randomized studies. We contacted study authors for clarification and additional data when necessary.We were unable to perform a meta-analysis as one of the RCTs adopted a study design where participants in the study group received linezolid immediately and participants in the control group received linezolid after two months, and therefore there were no comparable data from this trial. We deemed meta-analysis of non-randomized study data inappropriate.

Main results: We identified three RCTs for inclusion. One of these studies had serious problems with allocation of the study drug and placebo, so we could not analyse data for intervention effect from it. The remaining two RCTs recruited 104 participants. One randomized 65 participants to receive linezolid or not, in addition to a background regimen; the other randomized 39 participants to addition of linezolid to a background regimen immediately, or after a delay of two months. We included 14 non-randomized cohort studies (two prospective, 12 retrospective), with a total of 1678 participants.Settings varied in terms of income and tuberculosis burden. One RCT and 7 out of 14 non-randomized studies commenced recruitment in or after 2009. All RCT participants and 38.7% of non-randomized participants were reported to have XDR-TB.Dosing and duration of linezolid in studies were variable and reported inconsistently. Daily doses ranged from 300 mg to 1200 mg; some studies had planned dose reduction for all participants after a set time, others had incompletely reported dose reductions for some participants, and most did not report numbers of participants receiving each dose. Mean or median duration of linezolid therapy was longer than 90 days in eight of the 14 non-randomized cohorts that reported this information.Duration of participant follow-up varied between RCTs. Only five out of 14 non-randomized studies reported follow-up duration.Both RCTs were at low risk of reporting bias and unclear risk of selection bias. One RCT was at high risk of performance and detection bias, and low risk for attrition bias, for all outcomes. The other RCT was at low risk of detection and attrition bias for the primary outcome, with unclear risk of detection and attrition bias for non-primary outcomes, and unclear risk of performance bias for all outcomes. Overall risk of bias for the non-randomized studies was critical for three studies, and serious for the remaining 11.One RCT reported higher cure (risk ratio (RR) 2.36, 95% confidence interval (CI) 1.13 to 4.90, very low-certainty evidence), lower failure (RR 0.26, 95% CI 0.10 to 0.70, very low-certainty evidence), and higher sputum culture conversion at 24 months (RR 2.10, 95% CI 1.30 to 3.40, very low-certainty evidence), amongst the linezolid-treated group than controls, with no differences in other primary and secondary outcomes. This study also found more anaemia (17/33 versus 2/32), nausea and vomiting, and neuropathy (14/33 versus 1/32) events amongst linezolid-receiving participants. Linezolid was discontinued early and permanently in two of 33 (6.1%) participants who received it.The other RCT reported higher sputum culture conversion four months after randomization (RR 2.26, 95% CI 1.19 to 4.28), amongst the group who received linezolid immediately compared to the group who had linezolid initiation delayed by two months. Linezolid was discontinued early and permanently in seven of 39 (17.9%) participants who received it.Linezolid discontinuation occurred in 22.6% (141/624; 11 studies), of participants in the non-randomized studies. Total, serious, and linezolid-attributed adverse events could not be summarized quantitatively or comparatively, due to incompleteness of data on duration of follow-up and numbers of participants experiencing events.

Authors' conclusions: We found some evidence of efficacy of linezolid for drug-resistant pulmonary tuberculosis from RCTs in participants with XDR-TB but adverse events and discontinuation of linezolid were common. Overall, there is a lack of comparative data on efficacy and safety. Serious risk of bias and heterogeneity in conducting and reporting non-randomized studies makes the existing, mostly retrospective, data difficult to interpret. Further prospective cohort studies or RCTs in high tuberculosis burden low-income and lower-middle-income countries would be useful to inform policymakers and clinicians of the efficacy and safety of linezolid as a component of drug-resistant TB treatment regimens.

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Conflict of interest statement

BS is a Clinical Research Fellow for the NIHR Global Health Research Group on Brain Infections at the University of Liverpool, and also works at the Royal Liverpool University Hospital, UK, and has no known conflicts of interest.

HR works at the Royal Liverpool University Hospital, UK, and has no known conflicts of interest.

DC is a PhD candidate supported by a Wellcome Trust Clinical Training Fellowship, based at the Liverpool School of Tropical Medicine, UK, and has no known conflicts of interest.

DS is a Senior Clinical Lecturer at the University of St Andrews, UK, and is a principal or co‐investigator on projects funded through grants from the Cunningham Trust, the Wellcome Trust, MRC‐Newton Fund, and EDCTP, and has no known conflicts of interest.

Figures

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Study flow diagram
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Risk of bias in included RCTs
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Risk of bias in included non‐randomized studies

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  • doi: 10.1002/14651858.CD012836

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    1. Park IN, Hong SB, Oh YM, Kim MN, Lim CM, Lee SD, et al. Efficacy and tolerability of daily‐half dose linezolid in patients with intractable multidrug‐resistant tuberculosis. Journal of Antimicrobial Chemotherapy 2006;58(3):701‐4. - PubMed
Park 2010 {published data only}
    1. Park JK, Koh WJ, Kim DK, Kim EK, Kim YI, Kim HJ, et al. Treatment outcomes and prognostic factors in patients with multidrug‐resistant tuberculosis in Korean private hospitals. Tuberculosis and Respiratory Diseases 2010;69(2):95‐102.
Pasticci 2012 {published data only}
    1. Pasticci MB, Mazzolla R, Mercuri A, Gamboni G, Bombaci JC, Tiecco C, et al. Trends and challenges in tuberculosis in a medium‐sized southern European setting. International Journal of Tuberculosis and Lung Disease 2012;16(5):645‐8. - PubMed
Pawar 2009 {published data only}
    1. Pawar UM, Kundnani V, Agashe V, Nene A. Multidrug‐resistant tuberculosis of the spine‐is it the beginning of the end? A study of twenty‐five culture proven multidrug‐resistant tuberculosis spine patients. Spine 2009;34(22):E806‐10. - PubMed
Pietersen 2014 {published data only}
    1. Pietersen E, Ignatius E, Streicher EM, Mastrapa B, Padanilam X, Pooran A, et al. Long‐term outcomes of patients with extensively drug‐resistant tuberculosis in South Africa: a cohort study. Lancet 2014;383(9924):1230‐9. - PubMed
Prajapati 2017 {published data only}
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Ralli 2011 {published data only}
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Roongruangpitayakul 2013 {published data only}
    1. Roongruangpitayakul C, Chuchottaworn C. Outcomes of MDR/XDR‐TB patients treated with linezolid: experience in Thailand. Chotmaihet Thangphaet [Journal of the Medical Association of Thailand] 2013;96(10):1273‐82. - PubMed
Rose 2012 {published data only}
    1. Rose PC, Hallbauer UM, Seddon JA, Hesseling AC, Schaaf HS. Linezolid‐containing regimens for the treatment of drug‐resistant tuberculosis in South African children. International Journal of Tuberculosis and Lung Disease 2012;16(12):1588‐93. - PubMed
Schecter 2010 {published data only}
    1. Schecter GF, Scott C, True L, Raftery A, Flood J, Mase S. Linezolid in the treatment of multidrug‐resistant tuberculosis. Clinical Infectious Diseases 2010;50(1):49‐55. - PubMed
Seddon 2012 {published data only}
    1. Seddon JA, Hesseling AC, Willemse M, Donald PR, Schaaf HS. Culture‐confirmed multidrug‐resistant tuberculosis in children: clinical features, treatment, and outcome. Clinical Infectious Diseases 2012;54(2):157‐66. - PubMed
Shah 2011 {published data only}
    1. Shah I, Rahangdale A. Partial extensively drug resistance (XDR) tuberculosis in children. Indian Pediatrics 2011;48(12):977‐9. - PubMed
Singla 2012 {published data only}
    1. Singla R, Caminero JA, Jaiswal A, Singla N, Gupta S, Bali RK, et al. Linezolid: an effective, safe and cheap drug for patients failing multidrug‐resistant tuberculosis treatment in India. European Respiratory Journal 2012, issue 4:956‐62. - PubMed
Slebos 2004 {published data only}
    1. Slebos DJ, Altena R, Kuijper EJ, Schippers EF, Bernards AT. Linezolid, an agent from a new class of antibiotics (multiple letters). Nederlands Tijdschrift voor Geneeskunde 2004;148(49):2462‐3. - PubMed
Sokolova 2008 {published data only}
    1. Sokolova GB, Lazareva Ia R, Kirtaeva OV, Romanova EV, Tsybane AA. Rezonizat and cycloserine in complex therapy of drug resistant tuberculosis (comparative studies). Antibiotiki i Khimioterapiia [Antibiotics and Chemoterapy] 2008;53(11‐12):25‐8. - PubMed
Sotgiu 2015 {published data only}
    1. Sotgiu G, Centis R, D'Ambrosio L, Castiglia P, Migliori GB. Low minimal inhibitory concentrations of linezolid against multidrug‐resistant tuberculosis strains. European Respiratory Journal 2015;45(1):287‐9. - PubMed
Stoltz 2017 {published data only}
    1. Stoltz AC, Kock EJ, Nathavitharana RR, Lederer P, Kruger JA, Keulder S, et al. Multi‐drug resistant TB treatment regimen, including bedaquiline and linezolid, failed to reduce transmission over 14 days. American Journal of Respiratory and Critical Care Medicine 2017;195:Np.
Tabarsi 2010 {published data only}
    1. Tabarsi P, Chitsaz E, Baghaei P, Shamaei M, Farnia P, Marjani M, et al. Impact of extensively drug‐resistant tuberculosis on treatment outcome of multidrug‐resistant tuberculosis patients with standardized regimen: report from Iran. Microbial Drug Resistance (Larchmont, N.Y.) 2010;16(1):81‐6. - PubMed
Tang 2011 {published data only}
    1. Tang S, Xiao H, Zeng L, Sun H, Gu J, Hao X, et al. Efficacy and safety of linezolid for the treatment of extensively drug resistant tuberculosis. American Journal of Respiratory and Critical Care Medicine 2011;183:A1834.
Tang 2012 {published data only}
    1. Tang S, Yao L, Xiao H, Zeng L, Sun H, Hao X, et al. Clinical efficacy and safety of linezolid for the treatment of extensively drug‐resistant tuberculosis. Clinical Microbiology and Infection 2012;18:33.
Tangg 2011 {published data only}
    1. Tangg SJ, Zhang Q, Zheng LH, Sun H, Gu J, Hao XH, et al. Efficacy and safety of linezolid in the treatment of extensively drug‐resistant tuberculosis. Japanese Journal of Infectious Diseases 2011;64(6):509‐12. - PubMed
Tiberi 2016b {published data only}
    1. Tiberi S, Sotgiu G, D'Ambrosio L, Centis R, Arbex MA, Alarcon Arrascue E, et al. Effectiveness and safety of imipenem‐clavulanate added to an optimized background regimen (OBR) versus OBR control regimens in the treatment of multidrug‐resistant and extensively drug‐resistant tuberculosis. Clinical Infectious Diseases 2016;62(9):1188‐90. - PubMed
Tortoli 2010 {published data only}
    1. Tortoli E, Rogasi PG, Fantoni E, Beltrami C, Francisci A, Mariottini A. Infection due to a novel mycobacterium, mimicking multidrug‐resistant Mycobacterium tuberculosis. Clinical Microbiology and Infection 2010;16(8):1130‐4. - PubMed
Tse‐Chang 2013 {published data only}
    1. Tse‐Chang A, Kunimoto D, Der E, Ahmed R. Assessment of linezolid efficacy, safety and tolerability in the treatment of tuberculosis: a retrospective case review. Canadian Journal of Infectious Diseases & Medical Microbiology [Journal Canadien des Maladies Infectieuses et de la Microbiologie Medicale] 2013;24(3):e50‐2. - PMC - PubMed
Udwadia 2017 {published data only}
    1. Udwadia ZF, Ganatra S, Mullerpattan JB. Compassionate use of bedaquiline in highly drug‐resistant tuberculosis patients in Mumbai, India. European Respiratory Journal 2017;49:1601699. - PubMed
Van der Walt 2013 {published data only}
    1. Walt M, Lancaster J, Odendaal R, Davis JG, Shean K, Farley J. Serious treatment related adverse drug reactions amongst anti‐retroviral naive MDR‐TB patients. PLoS One 2013;8(4):e58817. - PMC - PubMed
Van Heurck 2013 {published data only}
    1. Heurck R, Payen MC, Wit S, Clumeck N. Epidemiology of MDR‐TB in a Belgian infectious diseases unit: a 15 years review. Acta Clinica Belgica 2013;68(5):321‐4. - PubMed
Velasquez 2014 {published data only}
    1. Velasquez GE, Becerra MC, Gelmanova IY, Pasechnikov AD, Yedilbayev A, Shin SS, et al. Improving outcomes for multidrug‐resistant tuberculosis: aggressive regimens prevent treatment failure and death. Clinical Infectious Diseases 2014;59(1):9‐15. - PMC - PubMed
von der Lippe 2006 {published data only}
    1. Lippe B, Sandven P, Brubakk O. Efficacy and safety of linezolid in multidrug resistant tuberculosis (MDR‐TB)‐‐a report of ten cases. Journal of Infection 2006;52(2):92‐6. - PubMed
Ward 2005 {published data only}
    1. Ward HA, Marciniuk DD, Hoeppner VH, Jones W. Treatment outcome of multidrug‐resistant tuberculosis among Vietnamese immigrants. International Journal of Tuberculosis and Lung Disease 2005;9(2):164‐9. - PubMed
Wirth 2017 {published data only}
    1. Wirth D, Dass R, Hettle R. Cost‐effectiveness of adding novel or group 5 interventions to a background regimen for the treatment of multidrug‐resistant tuberculosis in Germany. BMC Health Services Research 2017;17:182. - PMC - PubMed
Xu 2012a {published data only}
    1. Xu HB, Jiang RH, Li L, Xiao HP. Linezolid in the treatment of MDR‐TB: a retrospective clinical study. International Journal of Tuberculosis and Lung Disease 2012;16(3):358‐63. - PubMed
Xu 2012b {published data only}
    1. Xu HB, Jiang RH, Xiao HP. Clofazimine in the treatment of multidrug‐resistant tuberculosis. Clinical Microbiology and Infection 2012;18(11):1104‐10. - PubMed
Yao 2011 {published data only}
    1. Yao L, Tang SJ, Xiao HP, Zeng LH, Sun H, Gu J, et al. Clinical efficacy and safety of linezolid for the treatment of extensively drug resistant tuberculosis. Respirology 2011;16:80. - PubMed
Yew 2008 {published data only}
    1. Yew WW, Chau CH, Wen KH. Linezolid in the treatment of ‘difficult' multidrug‐resistant tuberculosis. International Journal of Tuberculosis and Lung Disease 2008;12(3):345‐6. - PubMed
Yew 2009 {published data only}
    1. Yew WW, Chang KC, Chau CH. What is the optimal dosage of linezolid in treatment of complicated multidrug‐resistant tuberculosis?. European Respiratory Journal 2009;34(6):1492‐4. - PubMed
Yew 2014 {published data only}
    1. Yew WW, Lange C. Linezolid in the treatment of drug‐resistant tuberculosis: the way forward?. International Journal of Tuberculosis and Lung Disease 2014;18(6):631‐2. - PubMed
Yi 2017 {published data only}
    1. Yi L, Yoshiyama T, Okumura M, Morimoto K, Sasaki Y, Shiraishi Y, et al. Linezolid as a potentially effective drug for the treatment of multidrug‐resistant tuberculosis in Japan. Japanese Journal of Infectious Diseases 2017;70(1):96‐9. - PubMed

References to studies awaiting assessment

Agarwal 2005 {published data only (unpublished sought but not used)}
    1. Agarwal SK. Clinical efficacy of linezolid, clarithromycin and capreomycin in the treatment of multi‐drug resistant pulmonary tuberculosis. Chest 2005;128(4 Supplement):176S.
Agarwal 2007 {published data only (unpublished sought but not used)}
    1. Agarwal SK. Clinical efficacy of once a day linezolid and azithromycin in the treatment of multi drug resistant tuberculosis. European Respiratory Journal 2007;30(Suppl 51):454s [2683].
Anderson 2013 {published data only (unpublished sought but not used)}
    1. Anderson LF, Tamne S, Watson JP, Cohen T, Mitnick C, Brown T, et al. Treatment outcome of multi‐drug resistant tuberculosis in the United Kingdom: retrospective‐prospective cohort study from 2004 to 2007. Eurosurveillance 2013;18(40):20601. - PubMed
Arnold 2017 {published data only (unpublished sought but not used)}
    1. Arnold A, Cooke GS, Kon OM, Dedicoat M, Lipman M, Loyse A, et al. Drug resistant TB: UK multicentre study (DRUMS): treatment, management and outcomes in London and West Midlands 2008‐2014. Infection 2017;3:260‐71. - PubMed
Bionghi 2017 {published data only (unpublished sought but not used)}
    1. Bionghi N, Padayatchi N, Master I, Naidoo K, O'Donnell MR. Bedaquiline and linezolid for the operational treatment of multidrug‐resistant and extensively drug‐resistant tuberculosis in a high burden HIV setting (blix study). American Journal of Respiratory and Critical Care Medicine 2017;195:A3090. [DOI: 10.1164/ajrccm-conference.2017.B27] - DOI
Borisov 2017 {published data only (unpublished sought but not used)}
    1. Borisov SE, Dheda K, Enwerem M, Leyet RR, D'Ambrosio L, Centis R, et al. Effectiveness and safety of bedaquiline containing regimens in the treatment of MDR‐ and XDR‐TB: a multicentre study. European Respiratory Journal 2017;49:1700387. [DOI: 10.1183/13993003.00387-2017] - DOI - PubMed
Catho 2015 {published data only (unpublished sought but not used)}
    1. Catho G, Couraud S, Grard S, Bouaziz A, Senechal A, Valour F, et al. Management of emerging multidrug‐resistant tuberculosis in a low‐prevalence setting. Clinical Microbiology and Infection 2015;21(5):472.e7‐472.e10. - PubMed
Dey 2015 {published data only (unpublished sought but not used)}
    1. Dey A. Linezolid in children with drug resistant tuberculosis and associated peripheral neuropathy. Neurology 2015;84(14 Supplement):P6.319.
Ganatra 2017 {published data only (unpublished sought but not used)}
    1. Ganatra SR, Udwadia ZF, Mullerpattan JB, Banka RA, Sharma U, Kambli PG, et al. Clinical profiles of linezolid resistant tuberculosis cases in Mumbai. American Journal of Respiratory and Critical Care Medicine 2017;195:A2114. [DOI: 10.1164/ajrccm-conference.2017.A62] - DOI
Grard 2015 {published data only (unpublished sought but not used)}
    1. Grard S, Catho G, Valour F, Bouaziz A, Perpoint T, Braun E, et al. Linezolid in the starter combination for multidrug‐resistant tuberculosis: time to move on to group four?. Open Forum Infectious Diseases 2015;2(4):ofv175. - PMC - PubMed
Jeon 2009 {published data only (unpublished sought but not used)}
    1. Jeon DS, Kim DH, Kang HS, Hwang SH, Min JH, Kim JH, et al. Survival and predictors of outcomes in non‐HIV‐infected patients with extensively drug‐resistant tuberculosis. International Journal of Tuberculosis and Lung Disease 2009;13(5):594‐600. - PubMed
Kim 2007 {published data only (unpublished sought but not used)}
    1. Kim HR, Seung SH, Hyun JK, Sang ML, Yoo CG, Young WK, et al. Impact of extensive drug resistance on treatment outcomes in non‐HIV‐infected patients with multidrug‐resistant tuberculosis. Clinical Infectious Diseases 2007;45(10):1290‐5. - PubMed
Kim 2018 {published data only (unpublished sought but not used)}
    1. Kim CT, Kim TO, Shin HJ, Ko YC, Hun Choe Y, Kim HR, et al. Bedaquiline and delamanid for the treatment of multidrug‐resistant tuberculosis: a multicentre cohort study in Korea. European Respiratory Journal 2018;51(3):1702467. [DOI: 10.1183/13993003.02467-2017] - DOI - PubMed
Kuksa 2017 {published data only (unpublished sought but not used)}
    1. Kuksa L, Barkane L, Hittel N, Gupta R. Final treatment outcomes of multidrug and extensively drug‐resistant tuberculosis patients in Latvia receiving delamanid‐containing regimens. European Respiratory Journal 2017;50:1701105. [DOI: 10.1183/13993003.01105-2017] - DOI - PubMed
Lee 2017 {published data only (unpublished sought but not used)}
    1. Lee H, Ahn S, Hwang NY, Jeon K, Kwon OJ, Huh HJ, et al. Treatment outcomes of rifabutin‐containing regimens for rifabutin‐sensitive multidrug‐resistant pulmonary tuberculosis. International Journal of Infectious Diseases 2017;65:135‐41. [DOI: 10.1016/j.ijid.2017.10.013] - DOI - PubMed
Meressa 2015 {published data only (unpublished sought but not used)}
    1. Meressa D, Hurtado RM, Andrews JR, Diro E, Abato K, Daniel T, et al. Achieving high treatment success for multidrug‐resistant TB in Africa: initiation and scale‐up of MDR TB care in Ethiopia ‐ an observational cohort study. Thorax 2015;70(12):1181‐8. - PMC - PubMed
Pang 2017 {published data only (unpublished sought but not used)}
    1. Pang Y, Lu J, Huo F, Ma Y, Zhao L, Li Y, et al. Prevalence and treatment outcome of extensively drug‐resistant tuberculosis plus additional drug resistance from the National Clinical Center for Tuberculosis in China: a five‐year review. Journal of Infection 2017;75:433‐40. [DOI: 10.1016/j.jinf.2017.08.005] - DOI - PubMed
Ramirez‐Lapausa 2016 {published data only (unpublished sought but not used)}
    1. Ramirez‐Lapausa M, Pascual Pareja JF, Carrillo Gomez R, Martinez‐Prieto M, Gonzalez‐Ruano Perez P, Noguerado Asensio A. Retrospective study of tolerability and efficacy of linezolid in patients with multidrug‐resistant tuberculosis (1998‐2014). Enfermedades Infecciosas y Microbiologia Clinica 2016;34(2):85‐90. - PubMed
Soman 2014 {published data only (unpublished sought but not used)}
    1. Soman R, Pillai P, Madan S, Shetty A, Rodrigues C. Successful management of highly drug resistant tuberculosis with individualised drug susceptibility testing. Journal of the Association of Physicians of India 2014;62(7):567‐70. - PubMed
Tornheim 2017 {published data only (unpublished sought but not used)}
    1. Tornheim J, Ganatra S, Deluca A. Linezolid experience among MDR‐TB patients in Mumbai. European Respiratory Journal 2017;50(Suppl 61):PA3486. [DOI: 10.1183/1393003.congress-2017.PA3486] - DOI
Udwadia 2014 {published data only (unpublished sought but not used)}
    1. Udwadia Z, Moharil G. Multidrug‐resistant‐tuberculosis treatment in the Indian private sector: results from a tertiary referral private hospital in Mumbai. Lung India 2014;31(4):336‐41. - PMC - PubMed

References to ongoing studies

NCT02333799 {unpublished data only}
    1. NCT02333799. A phase 3 study assessing the safety and efficacy of bedaquiline plus PA‐824 plus linezolid in subjects with drug resistant pulmonary tuberculosis [A phase 3 open‐label trial assessing the safety and efficacy of bedaquiline plus PA‐824 plus linezolid in subjects with pulmonary infection of either extensively drug‐resistant tuberculosis (XDR‐TB) or treatment intolerant / non‐responsive multi‐drug resistant tuberculosis (MDR‐TB)]. clinicaltrials.gov/ct2/show/NCT02333799 (first posted 7 January 7 2015).
NCT02454205 {unpublished data only}
    1. NCT02454205. An open‐label RCT to evaluate a new treatment regimen for patients with multi‐drug resistant tuberculosis (NEXT) [Evaluating a new treatment regimen for patients with multidrug‐resistant tb (MDR‐TB) ‐ a prospective open‐label randomised controlled trial]. clinicaltrials.gov/ct2/show/NCT02454205 (first posted 27 May 2015).
NCT02589782 {unpublished data only}
    1. NCT02589782. Pragmatic clinical trial for a more effective concise and less toxic MDR‐TB treatment regimen(s) (TB‐PRACTECAL) [A randomised, controlled, open‐label, phase II‐III trial to evaluate the safety and efficacy of regimens containing bedaquiline and pretomanid for the treatment of adult patients with pulmonary multidrug resistant tuberculosis]. clinicaltrials.gov/ct2/show/NCT02589782 (first posted 28 October 2015).
NCT02619994 {unpublished data only}
    1. NCT02619994. Treatment shortening of MDR‐TB using existing and new drugs (MDR‐END) [Delamanid, linezolid, levofloxacin, and pyrazinamide for the treatment of patients with fluoroquinolone‐sensitive MDR‐TB: a phase 2/3, multicenter, randomized, open‐label, clinical trial]. clinicaltrials.gov/ct2/show/NCT02619994 (first posted 2 December 2015).
NCT02754765 {unpublished data only}
    1. NCT02754765. Evaluating newly approved drugs for multidrug‐resistant TB (endTB) [Evaluating newly approved drugs for multidrug‐resistant TB (endTB): a clinical trial]. clinicaltrials.gov/ct2/show/NCT02754765 (first posted 28 April 2016).
NCT03237182 {unpublished data only}
    1. NCT03237182. The individualized M(X) drug‐resistant TB treatment strategy study (InDEX) [The individualized M(X) drug‐resistant TB treatment strategy study a strategy to improve treatment outcomes in patients with drug‐resistant TB]. clinicaltrials.gov/ct2/show/NCT03237182 (first posted 2 August 2017).

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