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Dheda K, Mirzayev F, Cirillo DM, Udwadia Z, Dooley KE, Chang KC, Omar SV, Reuter A, Perumal T, Horsburgh CR, Murray M, Lange C. Multidrug-resistant tuberculosis. Nat Rev Dis Primers 2024; 10:22. [PMID: 38523140 DOI: 10.1038/s41572-024-00504-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/26/2024]
Abstract
Tuberculosis (TB) remains the foremost cause of death by an infectious disease globally. Multidrug-resistant or rifampicin-resistant TB (MDR/RR-TB; resistance to rifampicin and isoniazid, or rifampicin alone) is a burgeoning public health challenge in several parts of the world, and especially Eastern Europe, Russia, Asia and sub-Saharan Africa. Pre-extensively drug-resistant TB (pre-XDR-TB) refers to MDR/RR-TB that is also resistant to a fluoroquinolone, and extensively drug-resistant TB (XDR-TB) isolates are additionally resistant to other key drugs such as bedaquiline and/or linezolid. Collectively, these subgroups are referred to as drug-resistant TB (DR-TB). All forms of DR-TB can be as transmissible as rifampicin-susceptible TB; however, it is more difficult to diagnose, is associated with higher mortality and morbidity, and higher rates of post-TB lung damage. The various forms of DR-TB often consume >50% of national TB budgets despite comprising <5-10% of the total TB case-load. The past decade has seen a dramatic change in the DR-TB treatment landscape with the introduction of new diagnostics and therapeutic agents. However, there is limited guidance on understanding and managing various aspects of this complex entity, including the pathogenesis, transmission, diagnosis, management and prevention of MDR-TB and XDR-TB, especially at the primary care physician level.
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Affiliation(s)
- Keertan Dheda
- Centre for Lung Infection and Immunity, Division of Pulmonology, Department of Medicine and UCT Lung Institute & South African MRC/UCT Centre for the Study of Antimicrobial Resistance, University of Cape Town, Cape Town, South Africa.
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene and Tropical Medicine, London, UK.
| | - Fuad Mirzayev
- Global Tuberculosis Programme, WHO, Geneva, Switzerland
| | - Daniela Maria Cirillo
- Emerging Bacterial Pathogens Unit, IRCCS San Raffaele Scientific Institute Milan, Milan, Italy
| | - Zarir Udwadia
- Department of Pulmonology, Hinduja Hospital & Research Center, Mumbai, India
| | - Kelly E Dooley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kwok-Chiu Chang
- Tuberculosis and Chest Service, Centre for Health Protection, Department of Health, Hong Kong, SAR, China
| | - Shaheed Vally Omar
- Centre for Tuberculosis, National & WHO Supranational TB Reference Laboratory, National Institute for Communicable Diseases, a division of the National Health Laboratory Service, Johannesburg, South Africa
- Department of Molecular Medicine & Haematology, School of Pathology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - Anja Reuter
- Sentinel Project on Paediatric Drug-Resistant Tuberculosis, Boston, MA, USA
| | - Tahlia Perumal
- Centre for Lung Infection and Immunity, Division of Pulmonology, Department of Medicine and UCT Lung Institute & South African MRC/UCT Centre for the Study of Antimicrobial Resistance, University of Cape Town, Cape Town, South Africa
- Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection, London School of Hygiene and Tropical Medicine, London, UK
| | - C Robert Horsburgh
- Department of Epidemiology, Boston University Schools of Public Health and Medicine, Boston, MA, USA
| | - Megan Murray
- Department of Epidemiology, Harvard Medical School, Boston, MA, USA
| | - Christoph Lange
- Division of Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany
- German Center for Infection Research (DZIF), TTU-TB, Borstel, Germany
- Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany
- Department of Paediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, TX, USA
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Kerschberger B, Vambe D, Schomaker M, Mabhena E, Daka M, Dlamini T, Ngwenya S, Mamba B, Nxumalo B, Sibanda J, Dube S, Dlamini LM, Mukooza E, Ellman T, Ciglenecki I. Sustained high fatality during TB therapy amid rapid decline in TB mortality at population level: A retrospective cohort and ecological analysis from Shiselweni, Eswatini. Trop Med Int Health 2024; 29:192-205. [PMID: 38100203 DOI: 10.1111/tmi.13961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
OBJECTIVES Despite declining TB notifications in Southern Africa, TB-related deaths remain high. We describe patient- and population-level trends in TB-related deaths in Eswatini over a period of 11 years. METHODS Patient-level (retrospective cohort, from 2009 to 2019) and population-level (ecological analysis, 2009-2017) predictors and rates of TB-related deaths were analysed in HIV-negative and HIV-coinfected first-line TB treatment cases and the population of the Shiselweni region. Patient-level TB treatment data, and population and HIV prevalence estimates were combined to obtain stratified annual mortality rates. Multivariable Poisson regressions models were fitted to identify patient-level and population-level predictors of deaths. RESULTS Of 11,883 TB treatment cases, 1302 (11.0%) patients died during treatment: 210/2798 (7.5%) HIV-negative patients, 984/8443 (11.7%) people living with HIV (PLHIV), and 108/642 (16.8%) patients with unknown HIV-status. The treatment case fatality ratio remained above 10% in most years. At patient-level, fatality risk was higher in PLHIV (aRR 1.74, 1.51-2.02), and for older age and extra-pulmonary TB irrespective of HIV-status. For PLHIV, fatality risk was higher for TB retreatment cases (aRR 1.38, 1.18-1.61) and patients without antiretroviral therapy (aRR 1.70, 1.47-1.97). It decreases with increasing higher CD4 strata and the programmatic availability of TB-LAM testing (aRR 0.65, 0.35-0.90). At population-level, mortality rates decreased 6.4-fold (-147/100,000 population) between 2009 (174/100,000) and 2017 (27/100,000), coinciding with a decline in TB treatment cases (2785 in 2009 to 497 in 2017). Although the absolute decline in mortality rates was most pronounced in PLHIV (-826/100,000 vs. HIV-negative: -23/100,000), the relative population-level mortality risk remained higher in PLHIV (aRR 4.68, 3.25-6.72) compared to the HIV-negative population. CONCLUSIONS TB-related mortality rapidly decreased at population-level and most pronounced in PLHIV. However, case fatality among TB treatment cases remained high. Further strategies to reduce active TB disease and introduce improved TB therapies are warranted.
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Affiliation(s)
- Bernhard Kerschberger
- Médecins sans Frontières, Mbabane, Eswatini
- Médecins sans Frontières/Ärzte ohne Grenzen, Vienna Evaluation Unit, Vienna, Austria
| | - Debrah Vambe
- National TB Control Programme (NTCP), Manzini, Eswatini
| | - Michael Schomaker
- Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
- Department of Statistics, Ludwig-Maximilians University Munich, Munich, Germany
| | | | | | | | | | - Bheki Mamba
- National TB Control Programme (NTCP), Manzini, Eswatini
| | | | - Joyce Sibanda
- National TB Control Programme (NTCP), Manzini, Eswatini
| | - Sisi Dube
- National TB Control Programme (NTCP), Manzini, Eswatini
| | | | | | - Tom Ellman
- Médecins sans Frontières, Cape Town, South Africa
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Ngari MM, Rashid MA, Sanga D, Mathenge H, Agoro O, Mberia JK, Katana GG, Vaillant M, Abdullahi OA. Burden of HIV and treatment outcomes among TB patients in rural Kenya: a 9-year longitudinal study. BMC Infect Dis 2023; 23:362. [PMID: 37254064 DOI: 10.1186/s12879-023-08347-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/23/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Although tuberculosis (TB) patients coinfected with HIV are at risk of poor treatment outcomes, there is paucity of data on changing trends of TB/HIV co-infection and their treatment outcomes. This study aims to estimate the burden of TB/HIV co-infection over time, describe the treatment available to TB/HIV patients and estimate the effect of TB/HIV co-infection on TB treatment outcomes. METHODS This was a retrospective data analyses from TB surveillance in two counties in Kenya (Nyeri and Kilifi): 2012‒2020. All TB patients aged ≥ 18 years were included. The main exposure was HIV status categorised as infected, negative or unknown status. World Health Organization TB treatment outcomes were explored; cured, treatment complete, failed treatment, defaulted/lost-to-follow-up, died and transferred out. Time at risk was from date of starting TB treatment to six months later/date of the event and Cox proportion with shared frailties models were used to estimate effects of TB/HIV co-infection on TB treatment outcomes. RESULTS The study includes 27,285 patients, median (IQR) 37 (29‒49) years old and 64% male. 23,986 (88%) were new TB cases and 91% were started on 2RHZE/4RH anti-TB regimen. Overall, 7879 (29%, 95% 28‒30%) were HIV infected. The proportion of HIV infected patient was 32% in 2012 and declined to 24% in 2020 (trend P-value = 0.01). Uptake of ARTs (95%) and cotrimoxazole prophylaxis (99%) was high. Overall, 84% patients completed six months TB treatment, 2084 (7.6%) died, 4.3% LTFU, 0.9% treatment failure and 2.8% transferred out. HIV status was associated with lower odds of completing TB treatment: infected Vs negative (aOR 0.56 (95%CI 0.52‒0.61) and unknown vs negative (aOR 0.57 (95%CI 0.44‒0.73). Both HIV infected and unknown status were associated with higher hazard of death: (aHR 2.40 (95%CI 2.18‒2.63) and 1.93 (95%CI 1.44‒2.56)) respectively and defaulting treatment/LTFU: aHR 1.16 (95%CI 1.01‒1.32) and 1.55 (95%CI 1.02‒2.35)) respectively. HIV status had no effect on hazard of transferring out and treatment failure. CONCLUSION The overall burden of TB/HIV coinfection was within previous pooled estimate. Our findings support the need for systematic HIV testing as those with unknown status had similar TB treatment outcomes as the HIV infected.
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Affiliation(s)
- Moses M Ngari
- KEMRI/Wellcome Trust Research Programme, P.O Box 230, Kilifi, 80108, Kenya.
- Department of Public Health, Pwani University, Kilifi, Kenya.
| | | | - Deche Sanga
- Kilifi County TB Control Program, Kilifi, Kenya
| | | | - Oscar Agoro
- Nyeri County TB Control Program, Nyeri, Kenya
| | - Jane K Mberia
- School of Health Sciences, Meru University of Sciences and Technology, Meru, Kenya
| | - Geoffrey G Katana
- Department of Public Health, Pwani University, Kilifi, Kenya
- Kilifi County Department of Public Health, Kilifi, Kenya
| | - Michel Vaillant
- Competence Center for Methodology and Statistics, Luxembourg Institute of Health, Luxembourg, Luxembourg
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Dlatu N, Oladimeji KE, Apalata T. Voices from the Patients: A Qualitative Study of the Integration of Tuberculosis, Human Immunodeficiency Virus and Primary Healthcare Services in O.R. Tambo District, Eastern Cape, South Africa. Infect Dis Rep 2023; 15:158-170. [PMID: 36960969 PMCID: PMC10037593 DOI: 10.3390/idr15020017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
Tuberculosis (TB), a disease of poverty and inequality, is a leading cause of severe illness and death among people with human immunodeficiency virus (HIV). In South Africa, both TB and HIV epidemics have been closely related and persistent, posing a significant burden for healthcare provision. Studies have observed that TB-HIV integration reduces mortality. The operational implementation of integrated services is still challenging. This study aimed to describe patients' perceptions on barriers to scaling up of TB-HIV integration services at selected health facilities (study sites) in Oliver Reginald (O.R) Tambo Municipality, Eastern Cape province, South Africa. We purposely recruited twenty-nine (29) patients accessing TB and HIV services at the study sites. Data were analyzed using qualitative content analysis and presented as emerging themes. Barriers identified included a lack of health education about TB and HIV; an inadequate counselling for HIV and the antiretroviral drugs (ARVs); and poor quality of services provided by the healthcare facilities. These findings suggest that the O.R. Tambo district needs to strengthen its TB-HIV integration immediately.
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Affiliation(s)
- Ntandazo Dlatu
- Department of Public Health, Faculty of Health Sciences, Walter Sisulu University, Private Bag X1, Mthatha 5117, South Africa
| | | | - Teke Apalata
- Department of Laboratory Medicine and Pathology, Faculty of Health Sciences and National Health Laboratory Services (NHLS), Walter Sisulu University, Private Bag X1, Mthatha 5117, South Africa
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Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome-An Extempore Game of Misfiring with Defense Arsenals. Pathogens 2023; 12:pathogens12020210. [PMID: 36839482 PMCID: PMC9964757 DOI: 10.3390/pathogens12020210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/21/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
The lethal combination involving TB and HIV, known as "syndemic" diseases, synergistically act upon one another to magnify the disease burden. Individuals on anti-retroviral therapy (ART) are at risk of developing TB-associated immune reconstitution inflammatory syndrome (TB-IRIS). The underlying inflammatory complication includes the rapid restoration of immune responses following ART, eventually leading to exaggerated inflammatory responses to MTB antigens. TB-IRIS continues to be a cause of morbidity and mortality among HIV/TB coinfected patients initiating ART, and although a significant quantum of knowledge has been acquired on the pathogenesis of IRIS, the underlying pathomechanisms and identification of a sensitive and specific diagnostic marker still remain a grey area of investigation. Here, we reviewed the latest research developments into IRIS immunopathogenesis, and outlined the modalities to prevent and manage strategies for better clinical and diagnostic outcomes for IRIS.
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Shafiq M, Zafar S, Ahmad A, Kazmi A, Fatima A, Mujahid TA, Qazi R, Akhter N, Shahzad A, Rehman SU, Shereen MA, Hyder MZ. Second-Line Antiretroviral Treatment Outcome in HIV-Infected Patients Coinfected with Tuberculosis in Pakistan. BIOMED RESEARCH INTERNATIONAL 2023; 2023:4187488. [PMID: 37124927 PMCID: PMC10132892 DOI: 10.1155/2023/4187488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/08/2022] [Accepted: 03/20/2023] [Indexed: 05/02/2023]
Abstract
Background Tuberculosis (TB) coinfection in human immunodeficiency virus- (HIV-) infected patients is considered a risk of antiretroviral therapy (ART) failure. Coadministration of antitubercular therapy (ATT) with ART is another challenge for TB management. Objective The study was aimed at investigating contributing factors affecting treatment outcomes in HIV-/TB-coinfected patients. Design Cross-sectional. Setting. Samples were collected from the Pakistan Institute of Medical Sciences Hospital Islamabad. Subject and Methods. Clinicodemographic and immunovirological factors between the two groups were compared. The Student t-test and chi-square test were applied to compare outcome variables, and logistic regression was applied to determine the effect of TB on virological failure (VF). Main Outcome Measures. TB coinfection did not increase VF even in univariate (p = 0.974) and multivariate analysis at 6 and 12 months of 2nd-line ART start. ARV switching was significant (p = 0.033) in TB-coinfected patients. VF was significantly high in ATT-coadministered patients along with a viral load of ≥1000 (p = 0.000). Sample Size and Characteristics. We recruited seventy-four HIV patients on 2nd-line ART; 33 coinfected with TB were followed for at least 12 months. Conclusion In HIV-/TB-coinfected patients, CD4 count, CD4 gain, and VF remained comparable to HIV patients with no TB infection. ATT significantly affects the treatment outcome, suggesting drug-to-drug interactions. These factors are important to revisit the therapeutic guidelines to maximize the benefit of dual therapy in resource-limited settings.
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Affiliation(s)
- Muhammad Shafiq
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chak Shahzad, Islamabad, Pakistan
| | - Sana Zafar
- Services Institute of Medical Sciences, Lahore, Punjab, Pakistan
| | - Aftab Ahmad
- Department of Microbiology, Kohsar University Murree, Punjab, Pakistan
| | - Abeer Kazmi
- Institute of Hydrobiology, Chinese Academy of Sciences, University of Chinese Academy of Sciences (UCAS), Wuhan, China
| | - Alina Fatima
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chak Shahzad, Islamabad, Pakistan
| | - Tanvir Ahmed Mujahid
- Dermatology Department, Combined Military Hospital (CMH) Kharian, Punjab, Pakistan
| | - Rizwan Qazi
- Pakistan Institute of Medical Science (PIMS), Islamabad, Pakistan
| | - Nasim Akhter
- Pakistan Institute of Medical Science (PIMS), Islamabad, Pakistan
| | | | | | | | - Muhammad Zeeshan Hyder
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chak Shahzad, Islamabad, Pakistan
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Effect of HIV status and antiretroviral treatment on treatment outcomes of tuberculosis patients in a rural primary healthcare clinic in South Africa. PLoS One 2022; 17:e0274549. [PMID: 36223365 PMCID: PMC9555649 DOI: 10.1371/journal.pone.0274549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 08/30/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) remains the leading cause of death among human immunodeficiency virus (HIV) infected individuals in South Africa. Despite the implementation of HIV/TB integration services at primary healthcare facility level, the effect of HIV on TB treatment outcomes has not been well investigated. To provide evidence base for TB treatment outcome improvement to meet End TB Strategy goal, we assessed the effect of HIV status on treatment outcomes of TB patients at a rural clinic in the Ugu Health District, South Africa. METHODS We reviewed medical records involving a cohort of 508 TB patients registered for treatment between 1 January 2013 and 31 December 2015 at rural public sector clinic in KwaZulu-Natal province, South Africa. Data were extracted from National TB Programme clinic cards and the TB case registers routinely maintained at study sites. The effect of HIV status on TB treatment outcomes was determined by using multinomial logistic regression. Estimates used were relative risk ratio (RRR) at 95% confidence intervals (95%CI). RESULTS A total of 506 patients were included in the analysis. Majority of the patients (88%) were new TB cases, 70% had pulmonary TB and 59% were co-infected with HIV. Most of HIV positive patients were on antiretroviral therapy (ART) (90% (n = 268)). About 82% had successful treatment outcome (cured 39.1% (n = 198) and completed treatment (42.9% (n = 217)), 7% (n = 39) died 0.6% (n = 3) failed treatment, 3.9% (n = 20) defaulted treatment and the rest (6.6% (n = 33)) were transferred out of the facility. Furthermore, HIV positive patients had a higher mortality rate (9.67%) than HIV negative patients (2.91%)". Using completed treatment as reference, HIV positive patients not on ART relative to negative patients were more likely to have unsuccessful outcomes [RRR, 5.41; 95%CI, 2.11-13.86]. CONCLUSIONS When compared between HIV status, HIV positive TB patients were more likely to have unsuccessful treatment outcome in rural primary care. Antiretroviral treatment seems to have had no effect on the likelihood of TB treatment success in rural primary care. The TB mortality rate in HIV positive patients, on the other hand, was higher than in HIV negative patients emphasizing the need for enhanced integrated management of HIV/TB in rural South Africa through active screening of TB among HIV positive individuals and early access to ART among HIV positive TB cases.
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Mbewe N, Vinikoor MJ, Fwoloshi S, Mwitumwa M, Lakhi S, Sivile S, Yavatkar M, Lindsay B, Stafford K, Hachaambwa L, Mulenga L, Claassen CW. Advanced HIV disease management practices within inpatient medicine units at a referral hospital in Zambia: a retrospective chart review. AIDS Res Ther 2022; 19:10. [PMID: 35193598 PMCID: PMC8862513 DOI: 10.1186/s12981-022-00433-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
Background Zambia recently achieved UNAIDS 90-90-90 treatment targets for HIV epidemic control; however, inpatient facilities continue to face a large burden of patients with advanced HIV disease and HIV-related mortality. Management of advanced HIV disease, following guidelines from outpatient settings, may be more difficult within complex inpatient settings. We evaluated adherence to HIV guidelines during hospitalization, including opportunistic infection (OI) screening, treatment, and prophylaxis. Methods We reviewed inpatient medical records of people living with HIV (PLHIV) admitted to the University Teaching Hospital in Lusaka, Zambia between December 1, 2018 and April 30, 2019. We collected data on patient demographics, antiretroviral therapy (ART), HIV biomarkers, and OI screening and treatment—including tuberculosis (TB), Cryptococcus, and OI prophylaxis with co-trimoxazole (CTX). Screening and treatment cascades were constructed based on the 2017 WHO Advanced HIV Guidelines. Results We reviewed files from 200 charts of patients with advanced HIV disease; of these 92% (184/200) had been on ART previously; 58.1% (107/184) for more than 12 months. HIV viral load (VL) testing was uncommon but half of VL results were high. 39% (77/200) of patients had a documented CD4 count result. Of the 172 patients not on anti-TB treatment (ATT) on admission, TB diagnostic tests (either sputum Xpert MTB/RIF MTB/RIF or urine TB-LAM) were requested for 105 (61%) and resulted for 60 of the 105 (57%). Nine of the 14 patients (64%) with a positive lab result for TB died before results were available. Testing for Cryptococcosis was performed predominantly in patients with symptoms of meningitis. Urine TB-LAM testing was rarely performed. Conclusions At a referral hospital in Zambia, CD4 testing was inconsistent due to laboratory challenges and this reduced recognition of AHD and implementation of AHD guidelines. HIV programs can potentially reduce mortality and identify PLHIV with retention and adherence issues through strengthening inpatient activities, including reflex VL testing, TB-LAM and serum CrAg during hospitalization.
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González-Duran JA, Plaza RV, Luna L, Arbeláez MP, Deviaene M, Keynan Y, Rueda ZV, Marin D. Delayed HIV treatment, barriers in access to care and mortality in tuberculosis/HIV co-infected patients in Cali, Colombia. Colomb Med (Cali) 2021; 52:e2024875. [PMID: 35571589 PMCID: PMC9067911 DOI: 10.25100/cm.v52i3.4875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To determine factors associated with mortality in tuberculosis/HIV co-infected patients in Cali, Colombia. METHODS This retrospective cohort design included tuberculosis/HIV co-infected persons. Kaplan-Meier and Cox regression were used to estimate survival and risk factors associated with mortality. RESULTS Of the 279 tuberculosis/HIV co-infected participants, 27.2% died during the study. Participants mainly were adults and males. CD4 count information was available for 41.6% (the median count was 83 cells/mm3), and half were subject to tuberculosis susceptibility testing. The median time between HIV diagnosis and antiretroviral therapy initiation was 372 days. HIV was identified prior to tuberculosis in 53% and concurrent HIV-tuberculosis were diagnosed in 37% of patients. 44.8% had tuberculosis treatment success. Body mass index above 18 kg/m2, initiation of tuberculosis treatment within two weeks, having any health insurance coverage and CD4 count information conferred a survival advantage. CONCLUSIONS Delays in treatment initiation and factors associated with limited health care access or utilization were associated with mortality. As HIV and tuberculosis are both reportable conditions in Colombia, strategies should be focused on optimizing treatment outcomes within both tuberculosis and HIV programs, particularly improving early HIV diagnosis, early antiretroviral therapy treatment initiation, and adherence to tuberculosis treatment.
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Affiliation(s)
| | - Regina V Plaza
- Universidad del Cauca, Facultad de Ciencias de la Salud, Popayán, Colombia
| | - Lucy Luna
- Secretaría de Salud de Cali, Programa de tuberculosis, Cali, Colombia
| | | | - Meagan Deviaene
- University of Manitoba, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Manitoba, Canada
| | - Yoav Keynan
- University of Manitoba, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Manitoba, Canada
| | - Zulma Vanessa Rueda
- University of Manitoba, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Manitoba, Canada
| | - Diana Marin
- Universidad Pontificia Bolivariana, School of Medicine, Medellín, Colombia
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Predicting Drug-Drug Interactions between Rifampicin and Ritonavir-Boosted Atazanavir Using PBPK Modelling. Clin Pharmacokinet 2021; 61:375-386. [PMID: 34635995 PMCID: PMC9481493 DOI: 10.1007/s40262-021-01067-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2021] [Indexed: 01/12/2023]
Abstract
Objectives The aim of this study was to simulate the drug–drug interaction (DDI) between ritonavir-boosted atazanavir (ATV/r) and rifampicin (RIF) using physiologically based pharmacokinetic (PBPK) modelling, and to predict suitable dose adjustments for ATV/r for the treatment of people living with HIV (PLWH) co-infected with tuberculosis. Methods A whole-body DDI PBPK model was designed using Simbiology 9.6.0 (MATLAB R2019a) and verified against reported clinical data for all drugs administered alone and concomitantly. The model contained the induction mechanisms of RIF and ritonavir (RTV), the inhibition effect of RTV for the enzymes involved in the DDI, and the induction and inhibition mechanisms of RIF and RTV on the uptake and efflux hepatic transporters. The model was considered verified if the observed versus predicted pharmacokinetic values were within twofold. Alternative ATV/r dosing regimens were simulated to achieve the trough concentration (Ctrough) clinical cut-off of 150 ng/mL. Results The PBPK model was successfully verified according to the criteria. Simulation of different dose adjustments predicted that a change in regimen to twice-daily ATV/r (300/100 or 300/200 mg) may alleviate the induction effect of RIF on ATV Ctrough, with > 95% of individuals predicted to achieve Ctrough above the clinical cut-off. Conclusions The developed PBPK model characterized the induction-mediated DDI between RIF and ATV/r, accurately predicting the reduction of ATV plasma concentrations in line with observed clinical data. A change in the ATV/r dosing regimen from once-daily to twice-daily was predicted to mitigate the effect of the DDI on the Ctrough of ATV, maintaining plasma concentration levels above the therapeutic threshold for most patients. Supplementary Information The online version contains supplementary material available at 10.1007/s40262-021-01067-1.
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Kraef C, Bentzon A, Skrahina A, Mocroft A, Peters L, Lundgren JD, Chkhartishvili N, Podlekareva D, Kirk O. Improving healthcare for patients with HIV, tuberculosis and hepatitis C in eastern Europe: a review of current challenges and important next steps. HIV Med 2021; 23:48-59. [PMID: 34468073 DOI: 10.1111/hiv.13163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES In some eastern European countries, serious challenges exist to meet the HIV-, tuberculosis (TB)- and hepatitis-related target of the United Nations Sustainable Development Goals. Some of the highest incidence rates for HIV and the highest proportion of multi-drug-resistant (MDR) tuberculosis worldwide are found in the region. The purpose of this article is to review the challenges and important next steps to improve healthcare for people living with TB, HIV and hepatitis C (HCV) in eastern Europe. METHODS References for this narrative review were identified through systematic searches of PubMed using pre-idientified key word for articles published in English from January 2000 to August 2020. After screening of titles and abstracts 37 articles were identified as relevant for this review. Thirty-eight further articles and sources were identified through searches in the authors' personal files and in Google Scholar. RESULTS Up to 50% of HIV/MDR-TB-coinfected individuals in the region die within 2 years of treatment initiation. Antiretroviral therapy (ART) coverage for people living with HIV (PLHIV) and the proportion virological suppressed are far below the UNAIDS 90% targets. In theory, access to various diagnostic tests and treatment of drug-resistant TB exists, but real-life data point towards inadequate testing and treatment. New treatments could provide elimination of viral HCV in high-risk populations but few countries have national programmes. CONCLUSION Some eastern European countries face serious challenges to achieve the sustainable development goal-related target of 3.3 by 2030, among others, to end the epidemics of AIDS and tuberculosis. Better integration of healthcare systems, standardization of health care, unrestricted substitution therapy for all people who inject drugs, widespread access to drug susceptibility testing, affordable medicines and a sufficiently sized, well-trained health workforce could address some of those challenges.
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Affiliation(s)
- Christian Kraef
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Disease, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
| | - Adrian Bentzon
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Alena Skrahina
- Republican Scientific and Practical Center for Pulmonology and Tuberculosis, Minsk, Belarus
| | - Amanda Mocroft
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Centre for Clinical Research, Epidemiology, Modelling and Evaluation (CREME), Institute for Global Health, University College London, London, UK
| | - Lars Peters
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Lundgren
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Disease, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Nikoloz Chkhartishvili
- Infectious Diseases, AIDS & Clinical Immunology Research Center, Tbilisi, Georgia.,Caucasus International University, Tbilisi, Georgia
| | - Daria Podlekareva
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Disease, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ole Kirk
- CHIP (Centre of Excellence for Health, Immunity and Infections), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Disease, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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12
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Abstract
PURPOSE OF REVIEW People living with HIV (PLWH) are commonly coinfected with Mycobacterium tuberculosis, particularly in high-transmission resource-limited regions. Despite expanded access to antiretroviral therapy and tuberculosis (TB) treatment, TB remains the leading cause of death among PLWH. This review discusses recent advances in the management of TB in PLWH and examines emerging therapeutic approaches to improve outcomes of HIV-associated TB. RECENT FINDINGS Three recent key developments have transformed the management of HIV-associated TB. First, the scaling-up of rapid point-of-care urine-based tests for screening and diagnosis of TB in PLWH has facilitated early case detection and treatment. Second, increasing the availability of potent new and repurposed drugs to treat drug-resistant TB has generated optimism about the treatment and outcome of multidrug-resistant and extensively drug-resistant TB. Third, expanded access to the integrase inhibitor dolutegravir to treat HIV in resource-limited regions has simplified the management of TB/HIV coinfected patients and minimized serious adverse events. SUMMARY While it is unequivocal that substantial progress has been made in early detection and treatment of HIV-associated TB, significant therapeutic challenges persist. To optimize the management and outcomes of TB in HIV, therapeutic approaches that target the pathogen as well as enhance the host response should be explored.
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13
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Hoang NT, Nguyen NTT, Nguyen QN, Bollinger JW, Tran BX, Do NT, Nguyen THT, Nguyen HLT, Nguyen TH, Latkin CA, Ho CSH, Ho RCM. Survival Outcomes of Vietnamese People with HIV after Initiating Antiretroviral Treatment: Role of Clinic-Related Factors. AIDS Behav 2021; 25:1626-1635. [PMID: 33244641 DOI: 10.1007/s10461-020-03079-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2020] [Indexed: 01/04/2023]
Abstract
Given the rapid development of HIV clinics in Vietnam, this study evaluates the infrastructure surrounding this expansion, identifying clinic-related factors that impact survival outcomes. A retrospective longitudinal study was conducted among people living with HIV (PLWH) who initiated antiretroviral therapy (ART) between 2011 and 2015 among 62 ART clinics in 15 provinces. The mortality rate during the 717674.1 person-years of observation (PYO) was 0.29/100 PYO. Location in rural areas (versus urban) and in Central Vietnam (versus Northern Vietnam) were associated with higher risk of mortality. The risk was lower among clinics that had peer-educators. As Vietnam's HIV/AIDS program continues to expand, this data supports increasing resource allocation for rural clinics, incorporation of ART with the community's existing healthcare infrastructure in its efforts to decentralize, and integration of services to reflect patients' anticipated needs.
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Affiliation(s)
| | | | - Quang Nhat Nguyen
- Institute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam
- Université, Claude Bernard Lyon 1, Villeurbanne, France
| | | | - Bach Xuan Tran
- Institute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Nhan Thi Do
- Vietnam Authority of HIV/AIDS Control, Hanoi, Vietnam
| | - Trang Huyen Thi Nguyen
- Center of Excellence in Pharmacoeconomics and Management, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Huong Lan Thi Nguyen
- Institute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam.
- Faculty of Nursing, Duy Tan University, Da Nang, Vietnam.
| | - Trang Ha Nguyen
- Institute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam
- Faculty of Nursing, Duy Tan University, Da Nang, Vietnam
| | - Carl A Latkin
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Cyrus S H Ho
- Department of Psychological Medicine, National University Hospital, Singapore, Singapore
| | - Roger C M Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore, Singapore
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14
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Shu Y, Deng Z, Wang H, Chen Y, Yuan L, Deng Y, Tu X, Zhao X, Shi Z, Huang M, Qiu C. Integrase inhibitors versus efavirenz combination antiretroviral therapies for TB/HIV coinfection: a meta-analysis of randomized controlled trials. AIDS Res Ther 2021; 18:25. [PMID: 33933131 PMCID: PMC8088572 DOI: 10.1186/s12981-021-00348-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 04/12/2021] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND Integrase inhibitors (INIs)-based antiretroviral therapies (ART) are more recommended than efavirenz (EFV)-based ART for people living with HIV/AIDS (PLWHA). Yet, the advantage of integrase inhibitors in treating TB/HIV coinfection is uncertain. Therefore, the objective of this systematic review is to evaluate the effects and safety of INIs- versus EFV-based ART in TB/HIV coinfection, and demonstrate the feasibility of the regimens. METHODS Four electronic databases were systematically searched through September 2020. Fixed-effects models were used to calculate pooled effect size for all outcomes. The primary outcomes were virologic suppression and bacteriology suppression for INIs- versus EFV-based ART. Secondary outcomes included CD4+ cell counts change from baseline, adherence and safety. RESULTS Three trials (including 672 TB/HIV patients) were eligible. ART combining INIs and EFV had similar effects for all outcomes, with none of the point estimates argued against the INIs-based ART on TB/HIV patients. Compared to EFV-based ART as the reference group, the RR was 0.94 (95% CI 0.85 to 1.05) for virologic suppression, 1.00 (95% CI 0.95 to 1.05) for bacteriology suppression, 0.98 (95% CI 0.95 to 1.01) for adherence. The mean difference in CD4+ cell counts increase between the two groups was 14.23 cells/μl (95% CI 0- 6.40 to 34.86). With regard to safety (adverse events, drug-related adverse events, discontinuation for drugs, grade 3-4 adverse events, IRIS (grade 3-4), and death), INIs-based regimen was broadly similar to EFV-based regimens. The analytical results in all sub-analyses of raltegravir- (RAL) and dolutegravir (DTG) -based ART were valid. CONCLUSION This meta-analysis demonstrates similar efficacy and safety of INIs-based ART compared with EFV-based ART. This finding supports INIs-based ART as a first-line treatment in TB/HIV patients. The conclusions presented here still await further validation owing to insufficient data.
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Affiliation(s)
- Yuanlu Shu
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Ziwei Deng
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Hongqiang Wang
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Yi Chen
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Intensive Care Unit, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Lijialong Yuan
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Ye Deng
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Xiaojun Tu
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Xiang Zhao
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of General Practice, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Zhihua Shi
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China
| | - Minjiang Huang
- Hunan University of Medicine, Huaihua, 418000, People's Republic of China.
| | - Chengfeng Qiu
- Department of Evidence-Based Medicine and Clinical Center, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China.
- Department of Clinical Pharmacy, The First People's Hospital of Huaihua, University of South China, Huaihua, 418000, People's Republic of China.
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15
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Dooley KE, Kaplan R, Mwelase N, Grinsztejn B, Ticona E, Lacerda M, Sued O, Belonosova E, Ait-Khaled M, Angelis K, Brown D, Singh R, Talarico CL, Tenorio AR, Keegan MR, Aboud M. Dolutegravir-based Antiretroviral Therapy for Patients Coinfected With Tuberculosis and Human Immunodeficiency Virus: A Multicenter, Noncomparative, Open-label, Randomized Trial. Clin Infect Dis 2021; 70:549-556. [PMID: 30918967 DOI: 10.1093/cid/ciz256] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 04/05/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The concurrent treatment of tuberculosis and human immunodeficiency virus (HIV) is challenging, owing to drug interactions, overlapping toxicities, and immune reconstitution inflammatory syndrome (IRIS). The efficacy and safety of dolutegravir (DTG) were assessed in adults with HIV and drug-susceptible tuberculosis. METHODS International Study of Patients with HIV on Rifampicin ING is a noncomparative, active-control, randomized, open-label study in HIV-1-infected antiretroviral therapy-naive adults (CD4+ ≥50 cells/mm3). Participants on rifampicin-based tuberculosis treatment ≤8 weeks were randomized (3:2) to receive DTG (50 mg twice daily both during and 2 weeks after tuberculosis therapy, then 50 mg once daily) or efavirenz (EFV; 600 mg daily) with 2 nucleoside reverse transcriptase inhibitors for 52 weeks. The primary endpoint was the proportion of DTG-arm participants with plasma HIV-1-RNA <50 copies/mL (responders) by the Food and Drug Administration Snapshot algorithm (intent-to-treat exposed population) at Week 48. The study was not powered to compare arms. RESULTS For DTG (n = 69), the baseline HIV-1 RNA was >100 000 copies/mL in 64% of participants, with a median CD4+ count of 208 cells/mm3; for EFV (n = 44), 55% of participants had HIV-1 RNA >100 000 copies/mL, with a median CD4+ count of 202 cells/mm3. The Week 48 response rates were 75% (52/69, 95% confidence interval [CI] 65-86%) for DTG and 82% (36/44, 95% CI 70-93%) for EFV. The DTG nonresponses were driven by non-treatment related discontinuations (n = 10 lost to follow-up). There were no deaths or study drug switches. There were 2 discontinuations for toxicity (EFV). There were 3 protocol-defined virological failures (2 DTG, no acquired resistance; 1 EFV, emergent resistance to nucleoside reverse transcriptase inhibitors and nonnucleoside reverse transcriptase inhibitors). The tuberculosis treatment success rate was high. Tuberculosis-associated IRIS was uncommon (4/arm), with no discontinuations for IRIS. CONCLUSIONS Among adults with HIV receiving rifampicin-based tuberculosis treatment, twice-daily DTG was effective and well tolerated. CLINICAL TRIALS REGISTRATION NCT02178592.
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Affiliation(s)
- Kelly E Dooley
- Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Richard Kaplan
- Desmond Tutu Human Immunodeficiency Virus (HIV) Foundation, Cape Town
| | | | - Beatriz Grinsztejn
- Instituto de Pesquisa Clínica Evandro Chagas Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Eduardo Ticona
- Hospital Nacional Dos de Mayo, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Marcus Lacerda
- Instituto Leônidas & Maria Deane (Fiocruz)/Tropical Medicine Foundation Dr Heitor Vieira Dourado, Manaus, Brazil
| | - Omar Sued
- Fundación Huésped, Buenos Aires, Argentina
| | - Elena Belonosova
- Regional Center For Prevention and Treatment of Acquired Immunodeficiency Syndrome and Infectious Diseases, Orel, Russia
| | | | | | - Dannae Brown
- ViiV Healthcare Ltd., Melbourne, Victoria, Australia
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16
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Shumyantseva VV, Bulko TV, Tikhonova EG, Sanzhakov MA, Kuzikov AV, Masamrekh RA, Pergushov DV, Schacher FH, Sigolaeva LV. Electrochemical studies of the interaction of rifampicin and nanosome/rifampicin with dsDNA. Bioelectrochemistry 2020; 140:107736. [PMID: 33494014 DOI: 10.1016/j.bioelechem.2020.107736] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/31/2022]
Abstract
The interactions of dsDNA with rifampicin (RF) or with rifampicin after encapsulation in phospholipid micelles (nanosome/rifampicin) (NRF) were studied electrochemically. Screen-printed electrodes (SPEs) modified by stable dispersions of multi-wolled carbon nanotubes (MWCNTs) in aqueous solution of poly(1,2-butadiene)-block-poly(2-(dimethylamino)ethyl methacrylate) (PB290-b-PDMAEMA240) diblock copolymer were used for quantitative electrochemical investigation of direct electrochemical oxidation of guanine at E = 0.591 V (vs. Ag/AgCl) and adenine at E = 0.874 V (vs. Ag/AgCl) of dsDNA and its change in the presence of RF or NRF. Due to RF or NRF interaction with dsDNA, the differential pulse voltammetry (DPV) peak currents of guanine and adenine decreased and the peak potentials shifted to more positive values with increasing drug concentration (RF or NRF). Binding constants (Kb) of complexes RF-dsDNA and NRF-dsDNA were calculated based on adenine and guanine oxidation signals. The Kb values for RF-dsDNA were 1.48 × 104 M-1/8.56 × 104 M-1, while for NRF-dsDNA were 2.51 × 104 M-1/1.78 × 103 M-1 (based on adenine or guanine oxidation signals, respectively). The values of Kb revealed intercalation mode of interaction with dsDNA for RF and mixed type of interaction (intercalation and electrostatic mode) for NRF. The estimated values of ΔG (Gibbs free energy) of the complex formation confirmed that drug-dsDNA interactions are spontaneous and favourable reactions.
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Affiliation(s)
- Victoria V Shumyantseva
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia; Pirogov Russian National Research Medical University, Ostrovitianov Street 1, 117997 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia.
| | - Tatiana V Bulko
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Elena G Tikhonova
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia
| | - Maxim A Sanzhakov
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia
| | - Alexey V Kuzikov
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia; Pirogov Russian National Research Medical University, Ostrovitianov Street 1, 117997 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Rami A Masamrekh
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia; Pirogov Russian National Research Medical University, Ostrovitianov Street 1, 117997 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Dmitry V Pergushov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Felix H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, D-07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, D-07743 Jena, Germany; Center for Energy and Environmental Chemistry (CEEC), Friedrich-Schiller-University Jena, D-07743 Jena, Germany
| | - Larisa V Sigolaeva
- Institute of Biomedical Chemistry, Pogodinskaya Street 10, 119121 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
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17
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Kosgei RJ, Callens S, Gichangi P, Temmerman M, Kihara AB, David G, Omesa EN, Masini E, Carter EJ. Gender difference in mortality among pulmonary tuberculosis HIV co-infected adults aged 15-49 years in Kenya. PLoS One 2020; 15:e0243977. [PMID: 33315954 PMCID: PMC7735576 DOI: 10.1371/journal.pone.0243977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 12/02/2020] [Indexed: 11/28/2022] Open
Abstract
Setting Kenya, 2012–2015 Objective To explore whether there is a gender difference in all-cause mortality among smear positive pulmonary tuberculosis (PTB)/ HIV co-infected patients treated for tuberculosis (TB) between 2012 and 2015 in Kenya. Design Retrospective cohort of 9,026 smear-positive patients aged 15–49 years. All-cause mortality during TB treatment was the outcome of interest. Time to start of antiretroviral therapy (ART) initiation was considered as a proxy for CD4 cell count. Those who took long to start of ART were assumed to have high CD4 cell count. Results Of the 9,026 observations analysed, 4,567(51%) and 4,459(49%) were women and men, respectively. Overall, out of the 9,026 patients, 8,154 (90%) had their treatment outcome as cured, the mean age in years (SD) was 33.3(7.5) and the mean body mass index (SD) was 18.2(3.4). Men were older (30% men’ vs 17% women in those ≥40 years, p = <0.001) and had a lower BMI <18.5 (55.3% men vs 50.6% women, p = <0.001). Men tested later for HIV: 29% (1,317/4,567) of women HIV tested more than 3 months prior to TB treatment, as compared to 20% (912/4,459) men (p<0.001). Mortality was higher in men 11% (471/4,459) compared to women 9% (401/4,567, p = 0.004). There was a 17% reduction in the risk of death among women (adjusted HR 0.83; 95% CI 0.72–0.96; p = 0.013). Survival varied by age-groups, with women having significantly better survival than men, in the age-groups 40 years and over (log-rank p = 0.006). Conclusion Women with sputum positive PTB/HIV co-infection have a significantly lower risk of all-cause mortality during TB treatment compared to men. Men were older, had lower BMI and tested later for HIV than women.
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Affiliation(s)
- Rose J. Kosgei
- Department of Obstetrics and Gynaecology, University of Nairobi, Nairobi, Kenya
- * E-mail:
| | - Steven Callens
- Ghent University, Faculty of Medicine and Health Sciences, Ghent, Belgium
| | - Peter Gichangi
- Department of Human Anatomy, University of Nairobi, Nairobi, Kenya
| | - Marleen Temmerman
- Ghent University, Faculty of Medicine and Health Sciences, Ghent, Belgium
- Aga Khan University, Faculty of Health Sciences, Nairobi, Kenya
| | | | | | | | - Enos Masini
- National Tuberculosis Leprosy and Lung Disease Program, Nairobi, Kenya
| | - E. Jane Carter
- Alpert School of Medicine at Brown University, Providence, Rhode Island, United States of America
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18
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Nhandara RBC, Ayele BT, Sigwadhi LN, Ozougwu LU, Nyasulu PS. Determinants of adherence to clinic appointments among tuberculosis and HIV co-infected individuals attending care at Helen Joseph Hospital, Johannesburg, South Africa. Pan Afr Med J 2020; 37:118. [PMID: 33425151 PMCID: PMC7755366 DOI: 10.11604/pamj.2020.37.118.23523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/23/2020] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION tuberculosis (TB) is one of the leading causes of morbidity and mortality among people living with HIV/AIDS. The growing burden of TB/HIV co-infection continues to strain the healthcare system due to association with long duration of treatment. This is a catalyst for poor adherence to clinic appointments, which results in poor treatment adherence and patient outcome. This study evaluated the factors associated with adherence to clinic appointments among TB/HIV co-infected patients in Johannesburg, South Africa. METHODS this was a cross-sectional study that involved 10427 patients ≥18 years of age with HIV infection and co-infected with TB. We used a proxy measure "md clinic appointments" to assess adherence, then multivariable logistic regression to evaluate factors associated with adherence. RESULTS one thousand, five hundred and twenty-eight patients were co-infected with TB, of these, 17.4% attained good adherence. Patients with TB/HIV co-infection who were on treatment for a longer period were less likely to adhere to clinic appointments (AOR: 0.98 95% CI: 0.97, 0.99). CONCLUSION duration on treatment among TB/HIV co-infected patients is associated with adherence to clinic appointments. It is therefore vital to reinforce public health interventions that would enhance sustained adherence to clinic appointments and mitigate its impact on treatment adherence and patient outcome.
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Affiliation(s)
- Ruvimbo Barbara Claire Nhandara
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Birhanu Teshome Ayele
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Lovemore Nyasha Sigwadhi
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Lovelyn Uzoma Ozougwu
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Peter Suwirakwenda Nyasulu
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Division of Epidemiology and Biostatistics, Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
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20
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Rani A, Johansen MD, Roquet-Banères F, Kremer L, Awolade P, Ebenezer O, Singh P, Sumanjit, Kumar V. Design and synthesis of 4-Aminoquinoline-isoindoline-dione-isoniazid triads as potential anti-mycobacterials. Bioorg Med Chem Lett 2020; 30:127576. [PMID: 32980514 DOI: 10.1016/j.bmcl.2020.127576] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/20/2022]
Abstract
A series of 4-aminoquinoline-isoindoline-dione-isoniazid triads were synthesized and assessed for their anti-mycobacterial activities and cytotoxicity. Most of the synthesized compounds exhibited promising activities against the mc26230 strain of M. tuberculosis with MIC in the range of 5.1-11.9 µM and were non-cytotoxic against Vero cells. The conjugates lacking either isoniazid or quinoline core in their structural framework failed to inhibit the growth of M. tuberculosis; thus, further strengthening the proposed design of triads in the present study.
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Affiliation(s)
- Anu Rani
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Matt D Johansen
- Institut de Recherche en Infectiologie (IRIM) de Montpellier, CNRS, UMR 9004 Université de Montpellier, France
| | - Françoise Roquet-Banères
- Institut de Recherche en Infectiologie (IRIM) de Montpellier, CNRS, UMR 9004 Université de Montpellier, France
| | - Laurent Kremer
- Institut de Recherche en Infectiologie (IRIM) de Montpellier, CNRS, UMR 9004 Université de Montpellier, France; INSERM, IRIM, 34293 Montpellier, France
| | - Paul Awolade
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Oluwakemi Ebenezer
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Parvesh Singh
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Sumanjit
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
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Chelkeba L, Fekadu G, Tesfaye G, Belayneh F, Melaku T, Mekonnen Z. Effects of time of initiation of antiretroviral therapy in the treatment of patients with HIV/TB co-infection: A systemic review and meta-analysis. Ann Med Surg (Lond) 2020; 55:148-158. [PMID: 32477514 PMCID: PMC7251303 DOI: 10.1016/j.amsu.2020.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/03/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023] Open
Abstract
This systemic review and meta-analysis aimed to investigate the burden of tuberculosis immune reconstitution syndrome (TB-IRIS) and associated mortality to highlight the importance of future direction in preventing and treatment of TB-IRIS. Randomized clinical trials (RCTs) that compared early antiretroviral therapy (ART) versus late ART were included. PubMed, EMBASE, Science Direct and Cochrane Central Register of Controlled Trials electronic databases were searched. This meta-analysis included 8 RCTs with a total of 4, 425 participants. The result of analysis showed that early initiation of ART was associated with increase in TB-IRIS (RR = 1.83; 95% CI: 1.24-2.70, p = 0.002; I2 = 74%, p = 0.0007) and TB-IRIS associated mortality (RR = 6.05; 95% CI: 1.06-34.59, p = 0.04; I2 = 0%, p = 0.78). Early ART was associated with overall mortality compared with late ART initiation. Grade 3 or 4 adverse events, achieving lower viral load and development of new AIDS-defining illness were not associated with the time of ART initiation. Early ART in HIV/TB co-infected patients resulted conclusive evidence of increased TB-IRIS incidence and TB-IRIS associated mortality. Hence, the finding calls for clinical judgment as to the benefits of initiating ART earlier against the risk of TB-IRIS and associated mortality.
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Affiliation(s)
- Legese Chelkeba
- School of Pharmacy, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Ginenus Fekadu
- School of Pharmacy, Institute of Health Sciences, Wollega University, Nekemte, Ethiopia
| | - Gurmu Tesfaye
- Department of Pharmacy, College of Medicine and Health Sciences, Ambo University, Ambo, Ethiopia
| | - Firehiwot Belayneh
- Department of Pharmacy, College of Medicine and Health Sciences, Dilla University, Dilla, Ethiopia
| | - Tsegaye Melaku
- School of Pharmacy, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Zeleke Mekonnen
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
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22
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Delagreverie HM, Bauduin C, De Castro N, Grinsztejn B, Chevrier M, Jouenne F, Mourah S, Kalidi I, Pilotto JH, Brites C, Tregnago Barcellos N, Amara A, Wittkop L, Molina JM, Delaugerre C. Impact of Raltegravir or Efavirenz on Cell-Associated Human Immunodeficiency Virus-1 (HIV-1) Deoxyribonucleic Acid and Systemic Inflammation in HIV-1/Tuberculosis Coinfected Adults Initiating Antiretroviral Therapy. Open Forum Infect Dis 2020; 7:ofz549. [PMID: 32083147 PMCID: PMC7019658 DOI: 10.1093/ofid/ofz549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/02/2020] [Indexed: 01/01/2023] Open
Abstract
Background In view of the fast viremia decline obtained with integrase inhibitors, we studied the respective effects of initiating efavirenz (EFV) or raltegravir (RAL)-based antiretroviral therapy (ART) regimens on human immunodeficiency virus (HIV)-1 deoxyribonucleic acid (DNA) levels and inflammation biomarkers in the highly inflammatory setting of advanced HIV-1 disease with tuberculosis (TB) coinfection. Methods We followed cell-associated HIV-1 DNA, high-sensitivity C-reactive protein (hsCRP), interleukin 6 (IL-6), soluble CD14 and D-Dimer levels for 48 weeks after ART initiation in the participants to the ANRS12-180 REFLATE-TB study. This phase II open-label randomized study included ART-naive people with HIV and TB treated with rifampicin to receive RAL 400 mg twice daily (RAL400), RAL 800 mg twice daily (RAL800) or EFV 600 mg QD with tenofovir and lamivudine. Results In 146 participants, the median (interquartile range [IQR]) week (W)0 HIV-1 DNA level was 4.7 (IQR, 4.3–5.1) log10 copies/106 CD4+, and the reduction by W48 was −0.8 log10 copies/106 CD4+ on EFV, −0.9 on RAL400, and −1.0 on RAL800 (P = .74). Baseline median (IQR) hsCRP, IL-6, sCD14, and D-Dimer levels were 6.9 (IQR, 3.3–15.6) mg/L, 7.3 (IQR, 3.5–12.3) pg/mL, 3221 (IQR, 2383–4130) ng/mL, and 975 (IQR, 535–1970) ng/mL. All biomarker levels decreased over the study: the overall W0–W48 mean (95% confidence interval) fold-change on ART was 0.37 (IQR, 0.28–0.48) for hsCRP, 0.42 (IQR, 0.35–0.51) for IL-6, 0.51 (IQR, 0.47–0.56) for sCD14, and 0.39 (IQR, 0.32–0.47) for D-Dimers. There were no differences in biomarker reduction across treatment arms. Conclusions In participants with HIV and TB, EFV, RAL400, or RAL800 effectively and equally reduced inflammation and HIV-1 DNA levels.
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Affiliation(s)
- Héloïse M Delagreverie
- Laboratoire de Virologie, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,INSERM U944, Université de Paris, Paris, France
| | - Claire Bauduin
- ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, Bordeaux University, Bordeaux, France
| | - Nathalie De Castro
- Maladies Infectieuses et Tropicales, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Beatriz Grinsztejn
- Evandro Chagas Clinical Research Institute-Fiocruz, STD/AIDS Clinical Research Laboratory, Rio de Janeiro, Brazil
| | - Marc Chevrier
- Laboratoire de Biochimie, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Fanélie Jouenne
- Laboratoire de Pharmacologie, Hôpital Saint-Louis Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Samia Mourah
- Laboratoire de Pharmacologie, Hôpital Saint-Louis Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Issa Kalidi
- Laboratoire d'Hématologie, Hôpital Saint-Louis Assistance Publique-Hôpitaux de Paris, Paris, France
| | | | - Carlos Brites
- Hospital Universitário Profesor Edgar Santos, Laboratório de Pesquisa em Doenças Infecciosas, Bahia, Brazil
| | | | - Ali Amara
- INSERM U944, Université de Paris, Paris, France
| | - Linda Wittkop
- ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, Bordeaux University, Bordeaux, France.,Pole de Santé Publique, Service d'Information Medicale, Bordeaux, France
| | - Jean-Michel Molina
- INSERM U944, Université de Paris, Paris, France.,Maladies Infectieuses et Tropicales, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Constance Delaugerre
- Laboratoire de Virologie, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France.,INSERM U944, Université de Paris, Paris, France
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23
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Abdullahi U, Adeiza MA. The role of immune restoration using highly active antiretroviral therapy in the management of AIDS-related Kaposi's sarcoma coexisting with pulmonary tuberculosis. Niger Postgrad Med J 2020; 27:63-66. [PMID: 32003365 DOI: 10.4103/npmj.npmj_102_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A 35-year-old highly active antiretroviral therapy (HAART)-naïve woman diagnosed 2 years earlier presented with complaints of cough, fever and progressive weight loss of 5 months and skin rashes of 2 months. Clinical examination revealed a chronically ill-looking young woman who was wasted and pale, with purplish flat-topped papules and nodules on the skin of her neck, trunk, forearms and thighs. She also had a single lesion on the hard palate. Chest examination shows reduced breath sounds with crepitations. Sputum acid-fast bacilli were positive, and skin biopsy taken for histology confirmed Kaposi's sarcoma (KS). The patient recovered fully on antiretroviral and antituberculosis therapy without the need for any specific chemotherapy for KS. We report this case to elucidate the role of immune reconstitution as a treatment modality for AIDS-related KS, as well as to point out the possibility of multiple opportunistic conditions coexisting amongst patients with advanced HIV disease.
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Affiliation(s)
- Umar Abdullahi
- Department of Medicine, Dermatology Unit, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
| | - Mukhtar Abdulmajid Adeiza
- Department of Medicine, Infectious Disease Unit, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
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24
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Stijnberg D, Commiesie E, Marín D, Schrooten W, Perez F, Sanchez M. Factors associated with mortality in persons co-infected with tuberculosis and HIV in Suriname: a retrospective cohort study. Rev Panam Salud Publica 2019; 43:e103. [PMID: 31892929 PMCID: PMC6922075 DOI: 10.26633/rpsp.2019.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/11/2019] [Indexed: 11/29/2022] Open
Abstract
Objective. To identify socio-demographic and clinical factors associated with mortality among persons with tuberculosis (TB) and TB/HIV co-infection in Suriname. Methods. This was a retrospective cohort study using data from the national TB and HIV databases for 2010 – 2015. The survival probability of TB and TB/HIV co-infected patients was analyzed using the Kaplan-Meier estimates and the log-rank test. A Cox proportional hazard model was applied. Results. The study showed that HIV-seropositivity (aHR: 2.08, 95%CI: 1.48 – 2.92) and older age (aHR: 5.84, 95%CI: 3.00 – 11.4) are statistically associated with higher mortality. For the TB/HIV co-infected patients, TB treatment (aHR: 0.43, 95%CI: 0.35 – 0.53) reduces the risk of death. Similarly, HIV treatment started within 56 days (aHR: 0.15, 95%CI: 0.12 – 0.19) and delayed (aHR: 0.25, 95%CI: 0.13 – 0.47) result in less hazard for mortality; Directly-Observed Treatment (aOR: 0.16, 95%CI: 0.09 – 0.29) further reduces the risk. Conclusions. The Ministry of Health of Suriname should develop strategies for early case-finding in key populations, such as for HIV and TB in men 60 years of age and older. Implementation of Isoniazid Preventive Therapy for HIV should be pursued. Scaling up TB and HIV treatment, preferably through supervision, are essential to reducing the TB/HIV mortality.
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Affiliation(s)
- Deborah Stijnberg
- Ministry of Health Ministry of Health Paramaribo Suriname Ministry of Health, Paramaribo, Suriname
| | - Eric Commiesie
- National Tuberculosis Program National Tuberculosis Program Paramaribo Suriname National Tuberculosis Program, Paramaribo, Suriname
| | - Diana Marín
- Universidad Pontificia Bolivariana Universidad Pontificia Bolivariana Medellín Colombia Universidad Pontificia Bolivariana, Medellín, Colombia
| | - Ward Schrooten
- Hasselt University Hasselt University Hasselt Belgium Hasselt University, Hasselt, Belgium
| | - Freddy Perez
- Department of Communicable Diseases and Environmental Determinants of Health Pan American Health Organization/World Health Organization Washington, DC United States of America Department of Communicable Diseases and Environmental Determinants of Health, Pan American Health Organization/World Health Organization, Washington, DC, United States of America
| | - Mauro Sanchez
- Universidade de Brasilia Universidade de Brasilia Brasilia Brazil Universidade de Brasilia, Brasilia, Brazil
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25
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Tweed CD, Dawson R, Burger DA, Conradie A, Crook AM, Mendel CM, Conradie F, Diacon AH, Ntinginya NE, Everitt DE, Haraka F, Li M, van Niekerk CH, Okwera A, Rassool MS, Reither K, Sebe MA, Staples S, Variava E, Spigelman M. Bedaquiline, moxifloxacin, pretomanid, and pyrazinamide during the first 8 weeks of treatment of patients with drug-susceptible or drug-resistant pulmonary tuberculosis: a multicentre, open-label, partially randomised, phase 2b trial. THE LANCET. RESPIRATORY MEDICINE 2019; 7:1048-1058. [PMID: 31732485 PMCID: PMC7641992 DOI: 10.1016/s2213-2600(19)30366-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND New anti-tuberculosis regimens that are shorter, simpler, and less toxic than those that are currently available are needed as part of the global effort to address the tuberculosis epidemic. We aimed to investigate the bactericidal activity and safety profile of combinations of bedaquiline, pretomanid, moxifloxacin, and pyrazinamide in the first 8 weeks of treatment of pulmonary tuberculosis. METHODS In this multicentre, open-label, partially randomised, phase 2b trial, we prospectively recruited patients with drug-susceptible or rifampicin-resistant pulmonary tuberculosis from seven sites in South Africa, two in Tanzania, and one in Uganda. Patients aged 18 years or older with sputum smear grade 1+ or higher were eligible for enrolment, and a molecular assay (GeneXpert or MTBDRplus) was used to confirm the diagnosis of tuberculosis and to distinguish between drug-susceptible and rifampicin-resistant tuberculosis. Patients who were HIV positive with a baseline CD4 cell count of less than 100 cells per uL were excluded. Patients with drug-susceptible tuberculosis were randomly assigned (1:1:1) using numbered treatment packs with sequential allocation by the pharmacist to receive 56 days of treatment with standard tuberculosis therapy (oral isoniazid, rifampicin, pyrazinamide, and ethambutol; HRZE), or pretomanid (oral 200 mg daily) and pyrazinamide (oral 1500 mg daily) with either oral bedaquiline 400 mg daily on days 1-14 then 200 mg three times per week (BloadPaZ) or oral bedaquiline 200 mg daily (B200PaZ). Patients with rifampicin-resistant tuberculosis received 56 days of the B200PaZ regimen plus moxifloxacin 400 mg daily (BPaMZ). All treatment groups were open label, and randomisation was not stratified. Patients, trial investigators and staff, pharmacists or dispensers, laboratory staff (with the exception of the mycobacteriology laboratory staff), sponsor staff, and applicable contract research organisations were not masked. The primary efficacy outcome was daily percentage change in time to sputum culture positivity (TTP) in liquid medium over days 0-56 in the drug-susceptible tuberculosis population, based on non-linear mixed-effects regression modelling of log10 (TTP) over time. The efficacy analysis population contained patients who received at least one dose of medication and who had efficacy data available and had no major protocol violations. The safety population contained patients who received at least one dose of medication. This study is registered with ClinicalTrials.gov, NCT02193776, and all patients have completed follow-up. FINDINGS Between Oct 24, 2014, and Dec 15, 2015, we enrolled 180 patients with drug-susceptible tuberculosis (59 were randomly assigned to BloadPaZ, 60 to B200PaZ, and 61 to HRZE) and 60 patients with rifampicin-resistant tuberculosis. 57 patients in the BloadPaZ group, 56 in the B200PaZ group, and 59 in the HRZE group were included in the primary analysis. B200PaZ produced the highest daily percentage change in TTP (5·17% [95% Bayesian credibility interval 4·61-5·77]), followed by BloadPaZ (4·87% [4·31-5·47]) and HRZE group (4·04% [3·67-4·42]). The bactericidal activity in B200PaZ and BloadPaZ groups versus that in the HRZE group was significantly different. Higher proportions of patients in the BloadPaZ (six [10%] of 59) and B200PaZ (five [8%] of 60) groups discontinued the study drug than in the HRZE group (two [3%] of 61) because of adverse events. Liver enzyme elevations were the most common grade 3 or 4 adverse events and resulted in the withdrawal of ten patients (five [8%] in the BloadPaZ group, three [5%] in the B200PaZ group, and two [3%] in the HRZE group). Serious treatment-related adverse events affected two (3%) patients in the BloadPaZ group and one (2%) patient in the HRZE group. Seven (4%) patients with drug-susceptible tuberculosis died and four (7%) patients with rifampicin-resistant tuberculosis died. None of the deaths were considered to be related to treatment. INTERPRETATION B200PaZ is a promising regimen to treat patients with drug-susceptible tuberculosis. The bactericidal activity of both these regimens suggests that they have the potential to shorten treatment, and the simplified dosing schedule of B200PaZ could improve treatment adherence in the field. However, these findings must be investigated further in a phase 3 trial assessing treatment outcomes. FUNDING TB Alliance, UK Department for International Development, Bill & Melinda Gates Foundation, US Agency for International Development, Directorate General for International Cooperation of the Netherlands, Irish Aid, Australia Department of Foreign Affairs and Trade, and the Federal Ministry for Education and Research of Germany.
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Affiliation(s)
| | - Rodney Dawson
- University of Cape Town Lung Institute, Cape Town, South Africa,Division of Pulmonology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Divan A Burger
- Department of Statistics, University of Pretoria, Pretoria, South Africa
| | | | | | - Carl M Mendel
- Global Alliance for TB Drug Development, New York, NY, USA
| | - Francesca Conradie
- Clinical HIV Research Unit, University of Witwatersrand, Johannesburg, South Africa
| | - Andreas H Diacon
- TASK Applied Science, Bellville, South Africa,Division of Physiology, Department of Medical Biochemistry, Stellenbosch University, Tygerberg, South Africa
| | | | | | - Frederick Haraka
- Ifakara Health Institute Bagamoyo Research and Training Center, Bagamoyo, Tanzania
| | - Mengchun Li
- Global Alliance for TB Drug Development, New York, NY, USA
| | | | - Alphonse Okwera
- Uganda Case Western Reserve University Research Collaboration, Kampala, Uganda
| | - Mohammed S Rassool
- Clinical HIV Research Unit, Helen Joseph Hospital, Johannesburg, South Africa
| | - Klaus Reither
- Ifakara Health Institute Bagamoyo Research and Training Center, Bagamoyo, Tanzania,Swiss Tropical and Public Health Institute, Basel, Switzerland
| | | | | | - Ebrahim Variava
- MDR Unit, Klerksdorp Tshepong Hospital, Klerksdorp, South Africa
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Temesgen B, Kibret GD, Alamirew NM, Melkamu MW, Hibstie YT, Petrucka P, Alebel A. Incidence and predictors of tuberculosis among HIV-positive adults on antiretroviral therapy at Debre Markos referral hospital, Northwest Ethiopia: a retrospective record review. BMC Public Health 2019; 19:1566. [PMID: 31771552 PMCID: PMC6880633 DOI: 10.1186/s12889-019-7912-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 11/07/2019] [Indexed: 11/10/2022] Open
Abstract
Background Tuberculosis is the leading cause of morbidity and mortality among people living with human immunodeficiency virus. Almost one-third of deaths among people living with human immunodeficiency virus are attributed to tuberculosis. Despite this evidence, in Ethiopia, there is a scarcity of information regarding the incidence and predictors of tuberculosis among people living with HIV. Thus, this study assessed the incidence and predictors of tuberculosis among HIV-positive adults on antiretroviral therapy. Methods This study was a retrospective record review including 544 HIV-positive adults on antiretroviral therapy at Debre Markos Referral Hospital between January 1, 2012 and December 31, 2017. The study participants were selected using a simple random sampling technique. The data extraction format was adapted from antiretroviral intake and follow-up forms. Cox-proportional hazards regression model was fitted and Cox-Snell residual test was used to assess the goodness of fit. Tuberculosis free survival time was estimated using the Kaplan-Meier survival curve. Both the bi-variable and multivariable Cox-proportional hazard regression models were used to identify predictors of tuberculosis. Results In the final analysis, a total of 492 HIV-positive adults were included, of whom, 83 (16.9%) developed tuberculosis at the time of follow-up. This study found that the incidence of tuberculosis was 6.5 (95% CI: 5.2, 8.0) per 100-person-years (PY) of observation. Advanced World Health Organization clinical disease stage (III and IV) (AHR: 2.1, 95% CI: 1.2, 3.2), being ambulatory and bedridden (AHR: 1.8, 95% CI: 1.1, 3.1), baseline opportunistic infections (AHR: 2.8, 95% CI: 1.7, 4.4), low hemoglobin level (AHR: 3.5, 95% CI: 2.1, 5.8), and not taking Isonized Preventive Therapy (AHR: 3.9, 95% CI: 1.9, 7.6) were found to be the predictors of tuberculosis. Conclusion The study found that there was a high rate of tuberculosis occurrence as compared to previous studies. Baseline opportunistic infections, being ambulatory and bedridden, advanced disease stage, low hemoglobin level, and not taking Isonized Preventive Therapy were found to be the predictors of tuberculosis. Therefore, early detection and treatment of opportunistic infections like tuberculosis should get a special attention.
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Affiliation(s)
| | - Getiye Dejenu Kibret
- College of Health Science, Debre Markos University, P.O. Box 269, Debre Markos, Ethiopia
| | | | | | | | - Pammla Petrucka
- College of Nursing, University of Saskatchewan, Saskatoon, Canada.,School of Life Sciences and Bioengineering, Nelson Mandela African Institute of Science and Technology, Arusha, Tanzania
| | - Animut Alebel
- College of Health Science, Debre Markos University, P.O. Box 269, Debre Markos, Ethiopia. .,Faculty of Health, University of Technology Sydney, Sydney, Australia.
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27
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Ciccacci F, Floridia M, Bernardini R, Sidumo Z, Mugunhe RJ, Andreotti M, Passanduca A, Magid NA, Orlando S, Mattei M, Giuliano M, Mancinelli S, Marazzi MC, Palombi L. Plasma levels of CRP, neopterin and IP-10 in HIV-infected individuals with and without pulmonary tuberculosis. J Clin Tuberc Other Mycobact Dis 2019; 16:100107. [PMID: 31720431 PMCID: PMC6830155 DOI: 10.1016/j.jctube.2019.100107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Introduction Tuberculosis (TB) is a major cause of morbidity and death worldwide, and disproportionally affects people with HIV. Many cases still remain undiagnosed, and rapid and effective screening strategies are needed to control the TB epidemics. Immunological biomarkers may contribute. Methods Plasma samples from healthy individuals (n: 12) and from HIV-infected individuals with (n: 21) and without pulmonary TB (n: 122) were tested for C-reactive protein (CRP), neopterin, and interferon-gamma-inducible protein-10 (IP-10). Increased levels of biomarkers and WHO 4-symptom-screening were compared with the presence of pulmonary TB. Survival status at 12 months was recorded. Associations with CD4 count, BMI, haemoglobin, disease severity, and mortality were analysed. Results The plasma levels of the biomarkers were significantly higher in TB-positive (n:21) compared to TB-negative (n:122) subjects. WHO symptoms, increased neopterin (>10 nmol/L) and CRP (>10 mg/L) showed similar sensitivity and different specificity, with increased CRP showing higher and increased neopterin lower specificity. The three markers were inversely correlated to haemoglobin and to CD4, and CRP levels inversely correlated to BMI. The markers were also significantly higher in individuals with subsequent mortality and in individuals with higher mycobacterial load in sputum according to Xpert results (IP-10 and CRP). Conclusion This study showed significant associations of the biomarkers analysed with TB infection and mortality, that could have potential clinical relevance. Biomarker levels may be included in operational research on TB screening and diagnosis.
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Affiliation(s)
- Fausto Ciccacci
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
- Corresponding author.
| | - Marco Floridia
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Roberta Bernardini
- Centro Servizi Interdipartimentale – STA, University of Rome Tor Vergata, Rome, Italy
| | - Zita Sidumo
- DREAM Program, Community of S. Egidio, Maputo, Mozambique
| | | | - Mauro Andreotti
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | | | | | - Stefano Orlando
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Maurizio Mattei
- Centro Servizi Interdipartimentale – STA, University of Rome Tor Vergata, Rome, Italy
- Department. of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marina Giuliano
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Sandro Mancinelli
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Leonardo Palombi
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
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Cevaal PM, Bekker LG, Hermans S. TB-IRIS pathogenesis and new strategies for intervention: Insights from related inflammatory disorders. Tuberculosis (Edinb) 2019; 118:101863. [PMID: 31561185 DOI: 10.1016/j.tube.2019.101863] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/29/2022]
Abstract
In almost one in five HIV/tuberculosis (TB) co-infected patients, initiation of antiretroviral therapy (ART) is complicated by TB immune reconstitution inflammatory syndrome (TB-IRIS). Corticosteroids have been suggested for treatment of severe cases, however no therapy is currently licensed for TB-IRIS. Hence, there is a strong need for more specific therapeutics, and therefore, a better understanding of TB-IRIS pathogenesis. Immune reconstitution following ART is a precariously balanced functional restoration of adaptive immunity. In those patients predisposed to disease, an incomplete activation of the innate immune system leads to a hyper-inflammatory response that comprises partially overlapping innate, adaptive and effector arms, eventually leading to clinical symptoms. Interestingly, many of these pathological mechanisms are shared by related inflammatory disorders. We here describe therapeutic strategies that originate from these other disciplines and discuss their potential application in TB-IRIS. These new avenues of interventions range from final-phase treatment of symptoms to early-phase prevention of disease onset. In conclusion, we propose a novel approach for the discovery and development of therapeutics, based on an updated model of TB-IRIS pathogenesis. Further experimental studies validating the causal relationships in the proposed model could greatly contribute to providing a solid immunological basis for future clinical trials on TB-IRIS therapeutics.
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Affiliation(s)
- Paula M Cevaal
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands.
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
| | - Sabine Hermans
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands; Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
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Roos R, Myezwa H, van Aswegen H. Factors associated with physical function capacity in an urban cohort of people living with the human immunodeficiency virus in South Africa. SOUTH AFRICAN JOURNAL OF PHYSIOTHERAPY 2019; 75:1323. [PMID: 31616799 PMCID: PMC6780000 DOI: 10.4102/sajp.v75i1.1323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 07/05/2019] [Indexed: 11/24/2022] Open
Abstract
Background Effective disease management for people living with human immunodeficiency virus (PLWH) includes the encouragement of physical activity. Physical function capacity in PLWH may be influenced by a variety of factors. Objectives This study describes the physical function capacity as assessed with the 6-minute walk test (6MWT) of an urban cohort of PLWH and determined whether a history of pulmonary tuberculosis (PTB), anthropometric measures, age and gender predicted distance walked. Method Secondary data collected from 84 PLWH on antiretroviral therapy were analysed. Information included 6MWT distance, anthropometric measurements and demographic profiles. Descriptive and inferential statistics were undertaken on the data. A regression analysis determined predictive factors for 6MWT distance achieved. Significance was set at a p-value of ≤ 0.05. Results The study consisted of 66 (78.6%) women and 18 (21.4%) men with a mean age of 39.1 (± 9.2) years. The 6MWT distance of the cohort was 544.3 (± 64.4) m with men walking further (602.8 [± 58.6] m) than women (528.3 [± 56.4] m); however, women experienced greater effort. The majority of the sample did not report a history of PTB (n = 67; 79.8%). Age, gender and anthropometric measures were associated with 6MWT distance, but of low to moderate strength. The regression equation generated included age and gender. This model was statistically significant (p < 0.00) and accounted for 34% of the total variance observed. Conclusion Age and gender were predictive factors of physical function capacity and women experienced greater effort. Clinical implications This study provides information on the physical function capacity of PLWH and a suggested 6MWT reference equation for PLWH in South Africa.
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Affiliation(s)
- Ronel Roos
- Department of Physiotherapy, University of the Witwatersrand, Johannesburg, South Africa
| | - Hellen Myezwa
- Department of Physiotherapy, University of the Witwatersrand, Johannesburg, South Africa
| | - Heleen van Aswegen
- Department of Physiotherapy, University of the Witwatersrand, Johannesburg, South Africa
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Jadhav M, Khan T, Bhavsar C, Momin M, Omri A. Novel therapeutic approaches for targeting TB and HIV reservoirs prevailing in lungs. Expert Opin Drug Deliv 2019; 16:687-699. [PMID: 31111766 DOI: 10.1080/17425247.2019.1621287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Coinfection with Mycobacterium tuberculosis is the leading cause of death in HIV positive patients. In 2017, about 0.3 million HIV positive people died of tuberculosis. There is high load of mycobacteria and HIV in the lungs and eradication of the same is vital for patient survival. AREAS COVERED This review focuses on the pathogenesis of HIV-TB coinfection and the current management approaches of this coinfection. It presents a detailed discussion of current investigations in novel drug delivery systems for effective targeting of HIV-TB lung reservoirs, especially via pulmonary drug delivery. Additionally, emphasis is given to the need of HIV-TB cotargeting, an unmet need in management of HIV-TB coinfection. EXPERT OPINION To achieve the goal of complete eradication of HIV-TB reservoirs in lungs requires focused research strategies to be undertaken in the area of pulmonary delivery systems. These endeavors could eventually lead to better patient compliance and improved treatment outcomes. The treatment regimen of HIV-TB coinfection is associated with a major drawback of low therapeutic concentration of drugs in lungs. Nanotechnology provides an excellent platform for delivery of anti-TB and anti-HIV drugs via the pulmonary route thereby serving as a viable and effective means of managing the mycobacterial and HIV reservoirs in the lungs.
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Affiliation(s)
- Mrunal Jadhav
- a Department of pharmaceutical chemistry and QA , SVKM's Dr. Bhanuben nanavati college of pharmacy , Mumbai , India
| | - Tabassum Khan
- a Department of pharmaceutical chemistry and QA , SVKM's Dr. Bhanuben nanavati college of pharmacy , Mumbai , India
| | - Chintan Bhavsar
- a Department of pharmaceutical chemistry and QA , SVKM's Dr. Bhanuben nanavati college of pharmacy , Mumbai , India
| | - Munira Momin
- a Department of pharmaceutical chemistry and QA , SVKM's Dr. Bhanuben nanavati college of pharmacy , Mumbai , India
| | - Abdelwahab Omri
- b Department of chemistry & biochemistry , Laurentian university , Sudbury , ON , Canada
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HPLC/LC-MS guided phytochemical and in vitro screening of Astragalus membranaceus (Fabaceae), and prediction of possible interactions with CYP2B6. J Herb Med 2018. [DOI: 10.1016/j.hermed.2018.10.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Long-term efavirenz pharmacokinetics is comparable between Tanzanian HIV and HIV/Tuberculosis patients with the same CYP2B6*6 genotype. Sci Rep 2018; 8:16316. [PMID: 30397233 PMCID: PMC6218524 DOI: 10.1038/s41598-018-34674-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/23/2018] [Indexed: 01/11/2023] Open
Abstract
The impact of anti-tuberculosis co-treatment on efavirenz (EFV) exposure is still uncertain as contradictory reports exist, and the relevance of CYP2B6*6 genetic polymorphism on efavirenz clearance while on-and-off anti-tuberculosis co-treatment is not well investigated. We investigated the determinants of long-term efavirenz pharmacokinetics by enrolling HIV (n = 20) and HIV/Tuberculosis (n = 36) subjects undergoing efavirenz and efavirenz/rifampicin co-treatment respectively. Pharmacokinetic samplings were done 16 weeks after initiation of efavirenz-based anti-retroviral therapy and eight weeks after completion of rifampicin-based anti-tuberculosis treatment. Population pharmacokinetic modeling was used to characterize variabilities and covariates of efavirenz pharmacokinetic parameters. CYP2B6*6 genetic polymorphism but not rifampicin co-treatment was the statistically significant covariate. The estimated typical efavirenz clearance in the HIV only subjects with the CYP2B6*1/*1 genotype was 23.6 L/h/70 kg, while it was 38% and 69% lower in subjects with the CYP2B6*1/*6 and *6/*6 genotypes, respectively. Among subjects with the same CYP2B6 genotypes, efavirenz clearances were comparable between HIV and HIV/Tuberculosis subjects. Typical efavirenz clearances before and after completion of anti-tuberculosis therapy were comparable. In conclusion, after 16 weeks of treatment, efavirenz clearance is comparable between HIV and HIV/Tuberculosis patients with the same CYP2B6 genotype. CYP2B6 genotyping but not anti-tuberculosis co-treatment should guide efavirenz dosing to optimize treatment outcomes.
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Floridia M, Ciccacci F, Andreotti M, Hassane A, Sidumo Z, Magid NA, Sotomane H, David M, Mutemba E, Cebola J, Mugunhe RJ, Riccardi F, Marazzi MC, Giuliano M, Palombi L, Mancinelli S. Tuberculosis Case Finding With Combined Rapid Point-of-Care Assays (Xpert MTB/RIF and Determine TB LAM) in HIV-Positive Individuals Starting Antiretroviral Therapy in Mozambique. Clin Infect Dis 2018; 65:1878-1883. [PMID: 29020319 DOI: 10.1093/cid/cix641] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/20/2017] [Indexed: 12/12/2022] Open
Abstract
Background Tuberculosis is a major health concern in several countries, and effective diagnostic algorithms for use in human immunodeficiency virus (HIV)-positive patients are urgently needed. Methods At prescription of antiretroviral therapy, all patients in 3 Mozambican health centers were screened for tuberculosis, with a combined approach: World Health Organization (WHO) 4-symptom screening (fever, cough, night sweats, and weight loss), a rapid test detecting mycobacterial lipoarabinomannan in urine (Determine TB LAM), and a molecular assay performed on a sputum sample (Xpert MTB/RIF; repeated if first result was negative). Patients with positive LAM or Xpert MTB/RIF results were referred for tuberculosis treatment. Results Among 972 patients with a complete diagnostic algorithm (58.5% female; median CD4 cell count, 278/μL; WHO HIV stage I, 66.8%), 98 (10.1%) tested positive with Xpert (90, 9.3%) or LAM (34, 3.5%) assays. Compared with a single-test Xpert strategy, dual Xpert tests improved case finding by 21.6%, LAM testing alone improved it by 13.5%, and dual Xpert tests plus LAM testing improved it by 32.4%. Rifampicin resistance in Xpert-positive patients was infrequent (2.5%). Among patients with positive results, 22 of 98 (22.4%) had no symptoms at WHO 4-symptom screening. Patients with tuberculosis diagnosed had significantly lower CD4 cell counts and hemoglobin levels, more advanced WHO stage, and higher HIV RNA levels. Fifteen (15.3%) did not start tuberculosis treatment, mostly owing to rapidly deteriorating clinical conditions or logistical constraints. The median interval between start of the diagnostic algorithm and start of tuberculosis treatment was 7 days. Conclusions The prevalence of tuberculosis among Mozambican HIV-positive patients starting antiretroviral therapy was 10%, with limited rifampicin resistance. Use of combined point-of-care tests increased case finding, with a short time to treatment. Interventions are needed to remove logistical barriers and prevent presentation in very advanced HIV/tuberculosis disease.
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Affiliation(s)
- Marco Floridia
- National Center for Global Health, Istituto Superiore di Sanità
| | | | - Mauro Andreotti
- National Center for Global Health, Istituto Superiore di Sanità
| | | | - Zita Sidumo
- DREAM Program, Community of S. Egidio, Maputo
| | | | | | | | - Elsa Mutemba
- DREAM Program, Community of S. Egidio, Beira, Mozambique
| | - Junia Cebola
- DREAM Program, Community of S. Egidio, Beira, Mozambique
| | | | - Fabio Riccardi
- Department of Biomedicine and Prevention, University of Rome Tor Vergata
| | | | - Marina Giuliano
- National Center for Global Health, Istituto Superiore di Sanità
| | - Leonardo Palombi
- Department of Biomedicine and Prevention, University of Rome Tor Vergata
| | - Sandro Mancinelli
- Department of Biomedicine and Prevention, University of Rome Tor Vergata
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A Comparison of Adverse Drug Reaction Profiles in Patients on Antiretroviral and Antitubercular Treatment in Zimbabwe. Clin Drug Investig 2018; 38:9-17. [PMID: 28965312 DOI: 10.1007/s40261-017-0579-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Few studies describe the adverse drug event profiles in patients simultaneously receiving antiretroviral and anti-tubercular medicines in resource-limited countries. OBJECTIVES To describe and compare the adverse drug reaction profiles in patients on highly active antiretroviral therapy only (HAART), HAART and isoniazid preventive therapy (HHART), and HAART and antitubercular treatment (ATTHAART). METHODS We analysed individual case safety reports (ICSRs) for patients on antiretroviral therapy and antitubercular treatment submitted to the national pharmacovigilance centre during the targeted spontaneous reporting (TSR) programme from 1 September 2012 through 31 August 2016. All reports considered certain, probable or possible were included in the analysis. RESULTS A total of 1076 ICSRs were included in the analysis. Most of the reports were from the HAART only group (n = 882; 82.0%), followed by patients on HHART (n = 132; 12.3%), and ATTHAART (n = 62; 5.7%). The ATTHAART (35.5%) and HHAART (34.1%) had a higher frequency of hepatic disorders than the HAART group (5.0%) (p < 0.0001). A higher frequency of rash was reported in the HHAART (35.6%) and HAART groups (29.4%) than the ATTHAART group (14.5%) (p = 0.011). Peripheral neuropathy occurred more frequently in the ATTHAART group (19.3%) than other groups (p = 0.001) while Stevens-Johnson syndrome (14.7%; p < 0.001), gynaecomastia (18.2%; p < 0.001), and lipodystrophy (4.5%; p = 0.012) occurred more frequently in the HAART group. The HHAART group was associated with a higher frequency of psychosis (4.5%; p = 0.002). CONCLUSION Antiretroviral therapy was associated with a higher frequency of Stevens-Johnson syndrome, gynaecomastia, and lipodystrophy. Co-administration of antiretroviral and antitubercular medicines was associated with a higher frequency of drug-induced liver injury and peripheral neuropathy. Similarly, co-administration of isoniazid preventive therapy and antiretroviral drugs was associated with a higher risk for psychosis. There is a need to carefully manage TB/HIV co-infected patients, due to the higher risk of adverse drug reactions which may lead to poor treatment adherence and outcomes.
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Caro-Vega Y, Schultze A, W Efsen AM, Post FA, Panteleev A, Skrahin A, Miro JM, Girardi E, Podlekareva DN, Lundgren JD, Sierra-Madero J, Toibaro J, Andrade-Villanueva J, Tetradov S, Fehr J, Caylà J, Losso MH, Miller RF, Mocroft A, Kirk O, Crabtree-Ramírez B. Differences in response to antiretroviral therapy in HIV-positive patients being treated for tuberculosis in Eastern Europe, Western Europe and Latin America. BMC Infect Dis 2018; 18:191. [PMID: 29685113 PMCID: PMC5914014 DOI: 10.1186/s12879-018-3077-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 04/03/2018] [Indexed: 01/01/2023] Open
Abstract
Background Efavirenz-based antiretroviral therapy (ART) regimens are preferred for treatment of adult HIV-positive patients co-infected with tuberculosis (HIV/TB). Few studies have compared outcomes among HIV/TB patients treated with efavirenz or non-efavirenz containing regimens. Methods HIV-positive patients aged ≥16 years with a diagnosis of tuberculosis recruited to the TB:HIV study between Jan 1, 2011, and Dec 31, 2013 in 19 countries in Eastern Europe (EE), Western Europe (WE), and Latin America (LA) who received ART concomitantly with TB treatment were included. Patients either received efavirenz-containing ART starting between 15 days prior to, during, or within 90 days after starting tuberculosis treatment, (efavirenz group), or other ART regimens (non-efavirenz group). Patients who started ART more than 90 days after initiation of TB treatment, or who experienced ART interruption of more than 15 days during TB treatment were excluded. We describe rates and factors associated with death, virological suppression, and loss to follow up at 12 months using univariate, multivariate Cox, and marginal structural models to compare the two groups of patients. Results Of 965 patients (647 receiving efavirenz-containing ART, and 318 a non-efavirenz regimen) 50% were from EE, 28% from WE, and 22% from LA. Among those not receiving efavirenz-containing ART, regimens mainly contained a ritonavir-boosted protease inhibitor (57%), or raltegravir (22%). At 12 months 1.4% of patients in WE had died, compared to 20% in EE: rates of virological suppression ranged from 21% in EE to 61% in WE. After adjusting for potential confounders, rates of death (adjusted Hazard Ratio; aHR, 95%CI: 1.13, 0.72–1.78), virological suppression (aHR, 95%CI: 0.97, 0.76–1.22), and loss to follow up (aHR, 95%CI: 1.17, 0.81–1.67), were similar in patients treated with efavirenz and non-efavirenz containing ART regimens. Conclusion In this large, prospective cohort, the response to ART varied significantly across geographical regions, whereas the ART regimen (efavirenz or non-efavirenz containing) did not impact on the proportion of patients who were virologically-suppressed, lost to follow up or dead at 12 months. Electronic supplementary material The online version of this article (10.1186/s12879-018-3077-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yanink Caro-Vega
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Vasco de Quiroga 15, Col. Belisario Domínguez sección XVI, Tlalpan, CP 14080, Mexico City, Mexico
| | - Anna Schultze
- Department of Infection and Population Health, University College London Medical School, London, UK
| | - Anne Marie W Efsen
- Centre for Health and Infectious Disease Research (CHIP), Department of Infectious Diseases, Finsencentret, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Frank A Post
- Department of Sexual Health, Caldecot Centre, King's College Hospital, London, UK
| | | | - Aliaksandr Skrahin
- Clinical Department, Republican Research and Practical Centre for Pulmonology and TB, Minsk, Belarus
| | - Jose M Miro
- Infectious Diseases Service, Hospital Clinic - IDIBAPS. University of Barcelona, Barcelona, Spain
| | - Enrico Girardi
- Department of Infectious Diseases INMI "L. Spallanzani", Ospedale L Spallanzani, Rome, Italy
| | - Daria N Podlekareva
- Centre for Health and Infectious Disease Research (CHIP), Department of Infectious Diseases, Finsencentret, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Lundgren
- Centre for Health and Infectious Disease Research (CHIP), Department of Infectious Diseases, Finsencentret, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Juan Sierra-Madero
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Vasco de Quiroga 15, Col. Belisario Domínguez sección XVI, Tlalpan, CP 14080, Mexico City, Mexico
| | - Javier Toibaro
- HIV Unit, Hospital J.M. Ramos Mejia and CICAL, Fundación IBIS, Buenos Aires, Argentina
| | | | - Simona Tetradov
- Dr Victor Babes' Hospital of Tropical and Infectious Diseases, Bucharest AND 'Carol Davila' University of Medicine and Pharmacy, Bucharest, Romania
| | - Jan Fehr
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland
| | - Joan Caylà
- Agencia de Salud Pública de Barcelona: Programa Integrado de Investigación en Tuberculosis de SEPAR (PII-TB); Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Marcelo H Losso
- HIV Unit, Hospital J.M. Ramos Mejia and CICAL, Fundación IBIS, Buenos Aires, Argentina
| | - Robert F Miller
- Centre for Clinical Research in Infection and Sexual Health, Institute for Global Health, University College London, London, UK
| | - Amanda Mocroft
- Department of Infection and Population Health, University College London Medical School, London, UK
| | - Ole Kirk
- Centre for Health and Infectious Disease Research (CHIP), Department of Infectious Diseases, Finsencentret, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Brenda Crabtree-Ramírez
- Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Vasco de Quiroga 15, Col. Belisario Domínguez sección XVI, Tlalpan, CP 14080, Mexico City, Mexico.
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Oprea C, Ianache I, Calistru PI, Nica M, Ruta S, Smith C, Lipman M. Increasing incidence of HIV- associated tuberculosis in Romanian injecting drug users. HIV Med 2018; 19:316-323. [PMID: 29464834 DOI: 10.1111/hiv.12576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND A high prevalence of tuberculosis (TB) among HIV-positive injecting drug users (IDUs) may fuel the TB epidemic in the general population of Romania. We determined the frequency and characteristics of TB in HIV-infected IDUs referred to a national centre. METHODS Prospective observational cohort study of all newly-diagnosed HIV-positive IDUs admitted to Victor Babes Hospital, Bucharest, between January 2009 and December 2014. Socio-demographics, clinical characteristics and outcomes of HIV/TB co-infected IDUs were compared to HIV-positive IDUs without TB. RESULTS 170/598 (28.5%) HIV-infected IDUs were diagnosed with TB. The prevalence increased from 12.5% in 2009 to 32.1% in 2014 (P < 0.001). HIV/TB co-infected individuals had lower median CD4 cell counts 75 (vs. 450/mm3 , P < 0.0001) and higher median HIV viral loads 5.6 log10 (vs. 4.9 log10 , P < 0.0001) when presenting to healthcare services. 103/170 (60.6%) HIV/TB co-infected IDUs were diagnosed with pulmonary TB. Resistant Mycobacterium tuberculosis strains were common, with 18/105 (17.1%) of patients having Multi-Drug Resistant (MDR) disease. Higher mortality rate was associated with TB co-infection (P < 0.0001), extra-pulmonary TB (P = 0.0026) and extensively drug resistant TB (P = 0.024). CONCLUSIONS Tuberculosis (TB) is an increasing problem in HIV-infected IDUs in Romania. Presentation is often with advanced HIV, significant TB drug resistance and consequent outcomes are poor.
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Affiliation(s)
- C Oprea
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Victor Babes Clinical Hospital for Infectious and Tropical Diseases, Bucharest, Romania
| | - I Ianache
- Victor Babes Clinical Hospital for Infectious and Tropical Diseases, Bucharest, Romania
| | - P I Calistru
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Victor Babes Clinical Hospital for Infectious and Tropical Diseases, Bucharest, Romania
| | - M Nica
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Laboratory of Bacteriology, Victor Babes Clinical Hospital for Infectious and Tropical Diseases, Bucharest, Romania
| | - S Ruta
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Stefan S. Nicolau Institute of Virology, Bucharest, Romania
| | - C Smith
- Institute of Global Health, University College London, London, UK
| | - M Lipman
- Royal Free London NHS Foundation Trust, London, UK.,UCL Respiratory, Division of Medicine, University College London, London, UK
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Naidoo K, Gengiah S, Yende-Zuma N, Padayatchi N, Barker P, Nunn A, Subrayen P, Abdool Karim SS. Addressing challenges in scaling up TB and HIV treatment integration in rural primary healthcare clinics in South Africa (SUTHI): a cluster randomized controlled trial protocol. Implement Sci 2017; 12:129. [PMID: 29132380 PMCID: PMC5683330 DOI: 10.1186/s13012-017-0661-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/01/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A large and compelling clinical evidence base has shown that integrated TB and HIV services leads to reduction in human immunodeficiency virus (HIV)- and tuberculosis (TB)-associated mortality and morbidity. Despite official policies and guidelines recommending TB and HIV care integration, its poor implementation has resulted in TB and HIV remaining the commonest causes of death in several countries in sub-Saharan Africa, including South Africa. This study aims to reduce mortality due to TB-HIV co-infection through a quality improvement strategy for scaling up of TB and HIV treatment integration in rural primary healthcare clinics in South Africa. METHODS The study is designed as an open-label cluster randomized controlled trial. Sixteen clinic supervisors who oversee 40 primary health care (PHC) clinics in two rural districts of KwaZulu-Natal, South Africa will be randomized to either the control group (provision of standard government guidance for TB-HIV integration) or the intervention group (provision of standard government guidance with active enhancement of TB-HIV care integration through a quality improvement approach). The primary outcome is all-cause mortality among TB-HIV patients. Secondary outcomes include time to antiretroviral therapy (ART) initiation among TB-HIV co-infected patients, as well as TB and HIV treatment outcomes at 12 months. In addition, factors that may affect the intervention, such as conditions in the clinic and staff availability, will be closely monitored and documented. DISCUSSION This study has the potential to address the gap between the establishment of TB-HIV care integration policies and guidelines and their implementation in the provision of integrated care in PHC clinics. If successful, an evidence-based intervention comprising change ideas, tools, and approaches for quality improvement could inform the future rapid scale up, implementation, and sustainability of improved TB-HIV integration across sub-Sahara Africa and other resource-constrained settings. TRIAL REGISTRATION Clinicaltrials.gov, NCT02654613 . Registered 01 June 2015.
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Affiliation(s)
- Kogieleum Naidoo
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, Private Bag X7, Congella, Durban, 4013, South Africa. .,CAPRISA-MRC TB-HIV Pathogenesis and Treatment Research Unit, Durban, South Africa.
| | - Santhanalakshmi Gengiah
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, Private Bag X7, Congella, Durban, 4013, South Africa
| | - Nonhlanhla Yende-Zuma
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, Private Bag X7, Congella, Durban, 4013, South Africa
| | - Nesri Padayatchi
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, Private Bag X7, Congella, Durban, 4013, South Africa.,CAPRISA-MRC TB-HIV Pathogenesis and Treatment Research Unit, Durban, South Africa
| | - Pierre Barker
- Institute for Healthcare Improvement, Cambridge, MA, USA.,Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, United States of America
| | - Andrew Nunn
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | | | - Salim S Abdool Karim
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, Private Bag X7, Congella, Durban, 4013, South Africa.,CAPRISA-MRC TB-HIV Pathogenesis and Treatment Research Unit, Durban, South Africa.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
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Thit SS, Aung NM, Htet ZW, Boyd MA, Saw HA, Anstey NM, Kyi TT, Cooper DA, Kyi MM, Hanson J. The clinical utility of the urine-based lateral flow lipoarabinomannan assay in HIV-infected adults in Myanmar: an observational study. BMC Med 2017; 15:145. [PMID: 28774293 PMCID: PMC5543584 DOI: 10.1186/s12916-017-0888-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/06/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The use of the point-of-care lateral flow lipoarabinomannan (LF-LAM) test may expedite tuberculosis (TB) diagnosis in HIV-positive patients. However, the test's clinical utility is poorly defined outside sub-Saharan Africa. METHODS The study enrolled consecutive HIV-positive adults at a tertiary referral hospital in Yangon, Myanmar. On enrolment, patients had a LF-LAM test performed according to the manufacturer's instructions. Clinicians managing the patients were unaware of the LF-LAM result, which was correlated with the patient's clinical course over the ensuing 6 months. RESULTS The study enrolled 54 inpatients and 463 outpatients between July 1 and December 31, 2015. On enrolment, the patients' median (interquartile range) CD4 T-cell count was 270 (128-443) cells/mm3. The baseline LF-LAM test was positive in 201/517 (39%). TB was confirmed microbiologically during follow-up in 54/517 (10%), with rifampicin resistance present in 8/54 (15%). In the study's resource-limited setting, extrapulmonary testing for TB was not possible, but after 6 months, 97/201 (48%) with a positive LF-LAM test on enrolment had neither died, required hospitalisation, received a TB diagnosis or received empirical anti-TB therapy, suggesting a high rate of false-positive results. Of the 97 false-positive tests, 89 (92%) were grade 1 positive, suggesting poor test specificity using this cut-off. Only 21/517 (4%) patients were inpatients with TB symptoms and a CD4 T-cell count of < 100 cells/mm3. Five (24%) of these 21 died, three of whom had a positive LF-LAM test on enrolment. However, all three received anti-TB therapy before death - two after diagnosis with Xpert MTB/RIF testing, while the other received empirical treatment. It is unlikely that knowledge of the baseline LF-LAM result would have averted any of the study's other 11 deaths; eight had a negative test, and of the three patients with a positive test, two received anti-TB therapy before death, while one died from laboratory-confirmed cryptococcal meningitis. The test was no better than a simple, clinical history excluding TB during follow-up (negative predictive value (95% confidence interval): 94% (91-97) vs. 94% (91-96)). CONCLUSIONS The LF-LAM test had limited clinical utility in the management of HIV-positive patients in this Asian referral hospital setting.
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Affiliation(s)
- Swe Swe Thit
- University of Medicine 2, Yangon, Myanmar.,Insein General Hospital, Yangon, Myanmar
| | - Ne Myo Aung
- University of Medicine 2, Yangon, Myanmar.,Insein General Hospital, Yangon, Myanmar
| | | | - Mark A Boyd
- University of Adelaide, Lyell McEwin Hospital, Adelaide, Australia.,The Kirby Institute, University of New South Wales, Sydney, Australia
| | | | - Nicholas M Anstey
- Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Tint Tint Kyi
- Insein General Hospital, Yangon, Myanmar.,Department of Medical Care, Ministry of Health, Nay Pyi Taw, Myanmar
| | - David A Cooper
- The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Mar Mar Kyi
- University of Medicine 2, Yangon, Myanmar.,Insein General Hospital, Yangon, Myanmar
| | - Josh Hanson
- University of Medicine 2, Yangon, Myanmar. .,The Kirby Institute, University of New South Wales, Sydney, Australia. .,Menzies School of Health Research, Charles Darwin University, Darwin, Australia.
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Carlucci JG, Blevins Peratikos M, Kipp AM, Lindegren ML, Du QT, Renner L, Reubenson G, Ssali J, Yotebieng M, Mandalakas AM, Davies MA, Ballif M, Fenner L, Pettit AC. Tuberculosis Treatment Outcomes Among HIV/TB-Coinfected Children in the International Epidemiology Databases to Evaluate AIDS (IeDEA) Network. J Acquir Immune Defic Syndr 2017; 75:156-163. [PMID: 28234689 DOI: 10.1097/qai.0000000000001335] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Management of tuberculosis (TB) is challenging in HIV/TB-coinfected children. The World Health Organization recommends nucleic acid amplification tests for TB diagnosis, a 4-drug regimen including ethambutol during intensive phase (IP) of treatment, and initiation of antiretroviral therapy (ART) within 8 weeks of TB diagnosis. We investigated TB treatment outcomes by diagnostic modality, IP regimen, and ART status. METHODS We conducted a retrospective cohort study among HIV/TB-coinfected children enrolled at the International Epidemiology Databases to Evaluate AIDS treatment sites from 2012 to 2014. We modeled TB outcome using multivariable logistic regression including diagnostic modality, IP regimen, and ART status. RESULTS Among the 386 HIV-infected children diagnosed with TB, 20% had microbiologic confirmation of TB, and 20% had unfavorable TB outcomes. During IP, 78% were treated with a 4-drug regimen. Thirty-one percent were receiving ART at the time of TB diagnosis, and 32% were started on ART within 8 weeks of TB diagnosis. Incidence of ART initiation within 8 weeks of TB diagnosis was higher for those with favorable TB outcomes (64%) compared with those with unfavorable outcomes (40%) (P = 0.04). Neither diagnostic modality (odds ratio 1.77; 95% confidence interval: 0.86 to 3.65) nor IP regimen (odds ratio 0.88; 95% confidence interval: 0.43 to 1.80) was associated with TB outcome. DISCUSSION In this multinational study of HIV/TB-coinfected children, many were not managed as per World Health Organization guidelines. Children with favorable TB outcomes initiated ART sooner than children with unfavorable outcomes. These findings highlight the importance of early ART for children with HIV/TB coinfection, and reinforce the need for implementation research to improve pediatric TB management.
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Affiliation(s)
- James G Carlucci
- *Vanderbilt Institute for Global Health, Nashville, TN; †Division of Pediatric Infectious Diseases, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN; ‡Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, TN; §Vanderbilt Tuberculosis Center, Nashville, TN; ‖Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN; ¶Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN; #Children's Hospital 1, Ho Chi Minh City, Vietnam; **University of Ghana School of Medicine and Dentistry, Accra, Ghana; ††Department of Pediatrics and Child Health, Rahima Moosa Mother and Child Hospital, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; ‡‡Masaka Regional Referral Hospital, Masaka, Uganda; §§The Ohio State University, College of Public Health, Columbus, OH; ‖‖Department of Pediatrics, Baylor College of Medicine, Houston, TX; ¶¶Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa; ##Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; ***Swiss Tropical and Public Health Institute, Basel, Switzerland; †††University of Basel, Basel, Switzerland; and ‡‡‡Division of Infectious Diseases, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
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Srichatrapimuk S, Sungkanuparph S. Integrated therapy for HIV and cryptococcosis. AIDS Res Ther 2016; 13:42. [PMID: 27906037 PMCID: PMC5127046 DOI: 10.1186/s12981-016-0126-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/16/2016] [Indexed: 12/27/2022] Open
Abstract
Cryptococcosis has been one of the most common opportunistic infections and causes of mortality among HIV-infected patients, especially in resource-limited countries. Cryptococcal meningitis is the most common form of cryptococcosis. Laboratory diagnosis of cryptococcosis includes direct microscopic examination, isolation of Cryptococcus from a clinical specimen, and detection of cryptococcal antigen. Without appropriate treatment, cryptococcosis is fatal. Early diagnosis and treatment is the key to treatment success. Treatment of cryptococcosis consists of three main aspects: antifungal therapy, intracranial pressure management for cryptococcal meningitis, and restoration of immune function with antiretroviral therapy (ART). Optimal integration of these three aspects is crucial to achieving successful treatment and reducing the mortality. Antifungal therapy consists of three phases: induction, consolidation, and maintenance. A combination of two drugs, i.e. amphotericin B plus flucytosine or fluconazole, is preferred in the induction phase. Fluconazole monotherapy is recommended during consolidation and maintenance phases. In cryptococcal meningitis, intracranial pressure rises along with CSF fungal burden and is associated with morbidity and mortality. Aggressive control of intracranial pressure should be done. Management options include therapeutic lumbar puncture, lumbar drain insertion, ventriculostomy, or ventriculoperitoneal shunt. Medical treatment such as corticosteroids, mannitol, and acetazolamide are ineffective and should not be used. ART has proven to have a great impact on survival rates among HIV-infected patients with cryptococcosis. The time to start ART in HIV-infected patients with cryptococcosis has to be deferred until 5 weeks after the start of antifungal therapy. In general, any effective ART regimen is acceptable. Potential drug interactions between antiretroviral agents and amphotericin B, flucytosine, and fluconazole are minimal. Of most potential clinical relevance is the concomitant use of fluconazole and nevirapine. Concomitant use of these two drugs should be cautious, and patients should be monitored closely for nevirapine-associated adverse events, including hepatotoxicity. Overlapping toxicities of antifungal and antiretroviral drugs and immune reconstitution inflammatory syndrome are not uncommon. Early recognition and appropriate management of these consequences can reinforce the successful integrated therapy in HIV-infected patients with cryptococcosis.
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