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  1. Article ; Online: Same-day versus rapid ART initiation in HIV-positive individuals presenting with symptoms of tuberculosis: Protocol for an open-label randomized non-inferiority trial in Lesotho and Malawi.

    Gerber, Felix / Semphere, Robina / Lukau, Blaise / Mahlatsi, Palesa / Mtenga, Timeo / Lee, Tristan / Kohler, Maurus / Glass, Tracy Renée / Amstutz, Alain / Molatelle, Mamello / MacPherson, Peter / Marake, Nthuseng Bridgett / Nliwasa, Marriot / Ayakaka, Irene / Burke, Rachael / Labhardt, Niklaus

    PloS one

    2024  Volume 19, Issue 2, Page(s) e0288944

    Abstract: Background: In absence of contraindications, same-day initiation (SDI) of antiretroviral therapy (ART) is recommended for people testing HIV-positive who are ready to start treatment. Until 2021, World Health Organization (WHO) guidelines considered the ...

    Abstract Background: In absence of contraindications, same-day initiation (SDI) of antiretroviral therapy (ART) is recommended for people testing HIV-positive who are ready to start treatment. Until 2021, World Health Organization (WHO) guidelines considered the presence of TB symptoms (presumptive TB) a contraindication to SDI due to the risk of TB-immune reconstitution inflammatory syndrome (TB-IRIS). To reduce TB-IRIS risk, ART initiation was recommended to be postponed until results of TB investigations were available, and TB treatment initiated if active TB was confirmed. In 2021, the WHO guidelines changed to recommending SDI even in the presence of TB symptoms without awaiting results of TB investigations based on the assumption that TB investigations often unnecessarily delay ART initiation, increasing the risk for pre-ART attrition from care, and noting that the clinical relevance of TB-IRIS outside the central nervous system remains unclear. However, this guideline change was not based on conclusive evidence, and it remains unclear whether SDI of ART or TB test results should be prioritized in people with HIV (PWH) and presumptive TB.
    Design and methods: SaDAPT is an open-label, pragmatic, parallel, 1:1 individually randomized, non-inferiority trial comparing two strategies for the timing of ART initiation in PWH with presumptive TB ("ART first" versus "TB results first"). PWH in Lesotho and Malawi, aged 12 years and older (re)initiating ART who have at least one TB symptom (cough, fever, night sweats or weight loss) and no signs of intracranial infection are eligible. After a baseline assessment, participants in the "ART first" arm will be offered SDI of ART, while those in the "TB results first" arm will be offered ART only after active TB has been confirmed or refuted. We hypothesize that the "ART first" approach is safe and non-inferior to the "TB results first" approach with regard to HIV viral suppression (<400 copies/ml) six months after enrolment. Secondary outcomes include retention in care and adverse events consistent with TB-IRIS.
    Expected outcomes: SaDAPT will provide evidence on the safety and effects of SDI of ART in PWH with presumptive TB in a pragmatic clinical trial setting.
    Trial registration: The trial has been registered on clinicaltrials.gov (NCT05452616; July 11 2022).
    MeSH term(s) Humans ; Anti-HIV Agents/therapeutic use ; HIV Infections/complications ; HIV Infections/drug therapy ; HIV Infections/diagnosis ; Lesotho ; Malawi ; Tuberculosis/drug therapy
    Chemical Substances Anti-HIV Agents
    Language English
    Publishing date 2024-02-08
    Publishing country United States
    Document type Equivalence Trial ; Journal Article ; Pragmatic Clinical Trial ; Randomized Controlled Trial
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0288944
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  2. Article ; Online: Adherence to additional medication for management of HIV-associated comorbidities among older children and adolescents taking antiretroviral therapy.

    Rehman, Andrea M / Simms, Victoria / McHugh, Grace / Mujuru, Hilda / Ngwira, Lucky G / Semphere, Robina / Moyo, Brewster / Bandason, Tsitsi / Odland, Jon O / Ferrand, Rashida A

    PloS one

    2022  Volume 17, Issue 6, Page(s) e0269229

    Abstract: Background: Management of co-morbidities among persons living with HIV is an emerging priority, which may require additional medication over and above life-long antiretroviral therapy (ART). We explored factors associated with adherence to the trial ... ...

    Abstract Background: Management of co-morbidities among persons living with HIV is an emerging priority, which may require additional medication over and above life-long antiretroviral therapy (ART). We explored factors associated with adherence to the trial drug among children and adolescents with perinatally acquired HIV taking antiretroviral therapy (ART) in the Bronchopulmonary Function in Response to Azithromycin Treatment for Chronic Lung Disease in HIV-Infected Children (BREATHE) trial.
    Methods: The BREATHE trial recruited 6-19 year olds with perinatally acquired HIV and co-morbid chronic lung disease as measured by FEV1. This two-site trial was individually randomised (1:1), double-blind and placebo-controlled. Participants received a once-weekly weight-based dose of 1-5 tablets of azithromycin (AZM: 250mg) or placebo, taken orally. We used pharmacy dispensing records and count of returned pills to measure adherence to study medication. Logistic regression was used to explore factors associated with adherence coverage. Poisson regression with Lexis expansion for time was used to explore whether adherence modified the effect of azithromycin on the incidence of acute respiratory exacerbation, a secondary outcome of the trial. Trial registration: ClinicalTrials.gov NCT02426112.
    Results: The 347 participants (median age 15.3, 51% male) consumed 14,622 doses of study medication over 16,220 person-weeks under study. Adherence was higher for those randomised to AZM (73.4%) than placebo (68.4%) and declined over the 48 weeks of the study (Score test for trend <0.02). Those with unsuppressed HIV viral load at baseline had 2.08 (95% CI: 1.19, 3.63) times the odds of non-adherence than those with viral suppression. Differences were also observed between trial sites.
    Conclusion: The majority of children and adolescents tolerated the addition of a once-weekly dose of medication to their pill burden. Barriers in adhering to treatment for co-morbid conditions are likely common to barriers in adhering to ART. Control of co-morbidities will therefore present additional challenges in HIV care.
    MeSH term(s) Adolescent ; Anti-HIV Agents/therapeutic use ; Azithromycin/pharmacology ; Azithromycin/therapeutic use ; Child ; Female ; HIV Infections/complications ; HIV Infections/drug therapy ; HIV Infections/epidemiology ; Humans ; Lung Diseases/drug therapy ; Male ; Medication Adherence ; Viral Load
    Chemical Substances Anti-HIV Agents ; Azithromycin (83905-01-5)
    Language English
    Publishing date 2022-06-15
    Publishing country United States
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0269229
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  3. Article ; Online: Utility of Xpert MTB/RIF Ultra and digital chest radiography for the diagnosis and treatment of TB in people living with HIV: a randomised controlled trial (XACT-TB).

    Mukoka, Madalo / Twabi, Hussein H / Msefula, Chisomo / Semphere, Robina / Ndhlovu, Gabriel / Lipenga, Trancizeo / Sikwese, Tionge Daston / Malisita, Kenneth / Choko, Augustine / Corbett, Elizabeth L / MacPherson, Peter / Nliwasa, Marriott

    Transactions of the Royal Society of Tropical Medicine and Hygiene

    2022  Volume 117, Issue 1, Page(s) 28–37

    Abstract: Background: TB is a leading cause of morbidity among HIV positive individuals. Accurate algorithms are needed to achieve early TB diagnosis and treatment. We investigated the use of Xpert MTB/RIF Ultra in combination with chest radiography for TB ... ...

    Abstract Background: TB is a leading cause of morbidity among HIV positive individuals. Accurate algorithms are needed to achieve early TB diagnosis and treatment. We investigated the use of Xpert MTB/RIF Ultra in combination with chest radiography for TB diagnosis in ambulatory HIV positive individuals.
    Methods: This was a randomised controlled trial with a 2-by-2 factorial design. Outpatient HIV clinic attendees with cough were randomised to four arms: Arm 1-Standard Xpert/no chest radiography (CXR); Arm 2-Standard Xpert/CXR; Arm 3-Xpert Ultra/no CXR; and Arm 4-Xpert Ultra/CXR. Participants were followed up at days 28 and 56 to assess for TB treatment initiation.
    Results: We randomised 640 participants. Bacteriologically confirmed TB treatment initiation at day 28 were: Arm 1 (8.4% [14/162]), Arm 2 (6.9% [11/159]), Arm 3 (8.2% [13/159]) and Arm 4 (5.6% [9/160]) and between Xpert Ultra group (Arms 3 and 4) (6.9% [22/319]) vs Standard Xpert group (Arms 1 and 2) (7.8% [25/321]), risk ratio 0.89 (95% CI 0.51 to 1.54). By day 56, there were also similar all-TB treatment initiations in the x-ray group (Arms 2 and 4) (16.0% [51/319]) compared with the no x-ray group (Arms 1 and 3) (13.1% [42/321]), risk ratio 1.22 (95% CI 0.84 to 1.78); however, the contribution of clinically diagnosed treatment initiations were higher in x-ray groups (50.9% vs 19.0%).
    Conclusions: Xpert Ultra performed similarly to Xpert MTB/RIF. X-rays are useful for TB screening but further research should investigate how to mitigate false-positive treatment initiations.
    MeSH term(s) Humans ; Tuberculosis, Pulmonary/diagnostic imaging ; Tuberculosis, Pulmonary/drug therapy ; Mycobacterium tuberculosis ; Radiography ; Ambulatory Care Facilities ; HIV Infections/complications ; Sensitivity and Specificity ; Sputum
    Language English
    Publishing date 2022-08-24
    Publishing country England
    Document type Randomized Controlled Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 441375-1
    ISSN 1878-3503 ; 0035-9203
    ISSN (online) 1878-3503
    ISSN 0035-9203
    DOI 10.1093/trstmh/trac079
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  4. Article ; Online: Effect of azithromycin on incidence of acute respiratory exacerbations in children with HIV taking antiretroviral therapy and co-morbid chronic lung disease: a secondary analysis of the BREATHE trial.

    Price, Amy / McHugh, Grace / Simms, Victoria / Semphere, Robina / Ngwira, Lucky G / Bandason, Tsitsi / Mujuru, Hilda / Odland, Jon O / Ferrand, Rashida A / Rehman, Andrea M

    EClinicalMedicine

    2021  Volume 42, Page(s) 101195

    Abstract: Background: In the BREATHE trial weekly azithromycin decreased the rate of acute respiratory exacerbations (AREs) compared to placebo among children and adolescents with HIV-associated chronic lung disease (CLD) taking antiretroviral therapy (ART). The ... ...

    Abstract Background: In the BREATHE trial weekly azithromycin decreased the rate of acute respiratory exacerbations (AREs) compared to placebo among children and adolescents with HIV-associated chronic lung disease (CLD) taking antiretroviral therapy (ART). The aim of this analysis was to identify risk factors associated with AREs and mediators of the effect of azithromycin on AREs.
    Methods: The primary outcome of this analysis was the rate of AREs by study arm up to 49 weeks. We analysed rates using Poisson regression with random intercepts. Interaction terms were fitted for potential effect modifiers. Participants were recruited from Zimbabwe and Malawi between15 June 2016 and 4 September 2018.
    Findings: We analysed data from 345 participants (171 allocated to azithromycin and 174 allocated to placebo). Rates of AREs were higher among those with an abnormally high respiratory rate at baseline (adjusted rate ratio (aRR) 2.08 95% CI 1.10-3.95 p-value 0.02) and among those with a CD4 cell count <200 cells/mm
    Interpretation: These may represent subgroups who may benefit the most from treatment with weekly azithromycin, which could help guide targeted treatment.
    Funding: There was no funding source for this post hoc analysis.
    Language English
    Publishing date 2021-11-13
    Publishing country England
    Document type Journal Article
    ISSN 2589-5370
    ISSN (online) 2589-5370
    DOI 10.1016/j.eclinm.2021.101195
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  5. Article ; Online: Pattern of abnormalities amongst chest X-rays of adults undergoing computer-assisted digital chest X-ray screening for tuberculosis in Peri-Urban Blantyre, Malawi: A cross-sectional study.

    Twabi, Hussein H / Semphere, Robina / Mukoka, Madalo / Chiume, Lingstone / Nzawa, Rebecca / Feasey, Helena R A / Lipenga, Trancizeo / MacPherson, Peter / Corbett, Elizabeth L / Nliwasa, Marriott

    Tropical medicine & international health : TM & IH

    2021  Volume 26, Issue 11, Page(s) 1427–1437

    Abstract: Background: The prevalence of diseases other than tuberculosis (TB) detected during chest X-ray screening is poorly described in sub-Saharan Africa. Computer-assisted digital chest X-ray technology is available for TB screening and has the potential to ... ...

    Abstract Background: The prevalence of diseases other than tuberculosis (TB) detected during chest X-ray screening is poorly described in sub-Saharan Africa. Computer-assisted digital chest X-ray technology is available for TB screening and has the potential to be a screening tool for non-communicable diseases as well. Low- and middle-income countries are in a transition period where the burden of non-communicable diseases is increasing, but health systems are mainly focused on addressing infectious diseases.
    Methods: Participants were adults undergoing computer-assisted chest X-ray screening for tuberculosis in a community-wide tuberculosis prevalence survey in Blantyre, Malawi. Adults with abnormal radiographs by field radiographer interpretation were evaluated by a physician in a community-based clinic. X-ray classifications were compared to classifications of a random sample of normal chest X-rays by radiographer interpretation. Radiographic features were classified using WHO Integrated Management for Adult Illnesses (IMAI) guidelines. All radiographs taken at the screening tent were analysed by the Qure.ai qXR v2.0 software.
    Results: 5% (648/13,490) of adults who underwent chest radiography were identified to have an abnormal chest X-ray by the radiographer. 387 (59.7%) of the participants attended the X-ray clinic, and another 387 randomly sampled normal X-rays were available for comparison. Participants who were referred to the community clinic had a significantly higher HIV prevalence than those who had been identified to have a normal CXR by the field radiographer (90 [23.3%] vs. 43 [11.1%] p-value < 0.001). The commonest radiographic finding was cardiomegaly (20.7%, 95% CI 18.0-23.7). One in five (81/387) chest X-rays were misclassified by the radiographer. The overall mean Qure.ai qXR v2.0 score for all reviewed X-rays was 0.23 (SD 0.20). There was a high concordance of cardiomegaly classification between the physician and the computer-assisted software (109/118, 92.4%).
    Conclusion: There is a high burden of cardiomegaly on a chest X-ray at a community level, much of which is in patients with diabetes, heart disease and high blood pressure. Cardiomegaly on chest X-ray may be a potential tool for screening for cardiovascular NCDs at the primary care level as well as in the community.
    MeSH term(s) Adolescent ; Adult ; Aged ; Cardiomegaly/complications ; Cardiomegaly/diagnostic imaging ; Cardiomegaly/epidemiology ; Computers ; Cross-Sectional Studies ; Female ; Humans ; Malawi/epidemiology ; Male ; Middle Aged ; Prevalence ; Radiography, Thoracic ; Surveys and Questionnaires ; Tuberculosis, Pulmonary/complications ; Tuberculosis, Pulmonary/diagnostic imaging ; Young Adult
    Language English
    Publishing date 2021-08-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1314080-2
    ISSN 1365-3156 ; 1360-2276
    ISSN (online) 1365-3156
    ISSN 1360-2276
    DOI 10.1111/tmi.13658
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  6. Article ; Online: Rapid and Accurate Diagnosis of Pediatric Tuberculosis Disease: A Diagnostic Accuracy Study for Pediatric Tuberculosis.

    Olbrich, Laura / Nliwasa, Marriott / Sabi, Issa / Ntinginya, Nyanda E / Khosa, Celso / Banze, Denise / Corbett, Elizabeth L / Semphere, Robina / Verghese, Valsan P / Michael, Joy Sarojini / Graham, Stephen M / Egere, Uzochukwu / Schaaf, H Simon / Morrison, Julie / McHugh, Timothy D / Song, Rinn / Nabeta, Pamela / Trollip, Andre / Geldmacher, Christof /
    Hoelscher, Michael / Zar, Heather J / Heinrich, Norbert

    The Pediatric infectious disease journal

    2023  Volume 42, Issue 5, Page(s) 353–360

    Abstract: Introduction: An estimated 1.2 million children develop tuberculosis (TB) every year with 240,000 dying because of missed diagnosis. Existing tools suffer from lack of accuracy and are often unavailable. Here, we describe the scientific and clinical ... ...

    Abstract Introduction: An estimated 1.2 million children develop tuberculosis (TB) every year with 240,000 dying because of missed diagnosis. Existing tools suffer from lack of accuracy and are often unavailable. Here, we describe the scientific and clinical methodology applied in RaPaed-TB, a diagnostic accuracy study.
    Methods: This prospective diagnostic accuracy study evaluating several candidate tests for TB was set out to recruit 1000 children <15 years with presumptive TB in 5 countries (Malawi, Mozambique, South Africa, Tanzania, India). Assessments at baseline included documentation of TB signs and symptoms, TB history, radiography, tuberculin skin test, HIV testing and spirometry. Respiratory samples for reference standard testing (culture, Xpert Ultra) included sputum (induced/spontaneous) or gastric aspirate, and nasopharyngeal aspirate (if <5 years). For novel tests, blood, urine and stool were collected. All participants were followed up at months 1 and 3, and month 6 if on TB treatment or unwell. The primary endpoint followed NIH-consensus statements on categorization of TB disease status for each participant. The study was approved by the sponsor's and all relevant local ethics committees.
    Discussion: As a diagnostic accuracy study for a disease with an imperfect reference standard, Rapid and Accurate Diagnosis of Pediatric Tuberculosis Disease (RaPaed-TB) was designed following a rigorous and complex methodology. This allows for the determination of diagnostic accuracy of novel assays and combination of testing strategies for optimal care for children, including high-risk groups (ie, very young, malnourished, children living with HIV). Being one of the largest of its kind, RaPaed-TB will inform the development of improved diagnostic approaches to increase case detection in pediatric TB.
    MeSH term(s) Humans ; Child ; Prospective Studies ; Sensitivity and Specificity ; Tuberculosis/diagnosis ; Tuberculin Test ; Feces ; Sputum ; Mycobacterium tuberculosis
    Language English
    Publishing date 2023-02-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 392481-6
    ISSN 1532-0987 ; 0891-3668
    ISSN (online) 1532-0987
    ISSN 0891-3668
    DOI 10.1097/INF.0000000000003853
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  7. Article ; Online: Diagnostic accuracy of a three-gene Mycobacterium tuberculosis host response cartridge using fingerstick blood for childhood tuberculosis: a multicentre prospective study in low-income and middle-income countries.

    Olbrich, Laura / Verghese, Valsan P / Franckling-Smith, Zoe / Sabi, Issa / Ntinginya, Nyanda E / Mfinanga, Alfred / Banze, Denise / Viegas, Sofia / Khosa, Celso / Semphere, Robina / Nliwasa, Marriott / McHugh, Timothy D / Larsson, Leyla / Razid, Alia / Song, Rinn / Corbett, Elizabeth L / Nabeta, Pamela / Trollip, Andre / Graham, Stephen M /
    Hoelscher, Michael / Geldmacher, Christof / Zar, Heather J / Michael, Joy Sarojini / Heinrich, Norbert

    The Lancet. Infectious diseases

    2023  Volume 24, Issue 2, Page(s) 140–149

    Abstract: Background: Childhood tuberculosis remains a major cause of morbidity and mortality in part due to missed diagnosis. Diagnostic methods with enhanced sensitivity using easy-to-obtain specimens are needed. We aimed to assess the diagnostic accuracy of ... ...

    Abstract Background: Childhood tuberculosis remains a major cause of morbidity and mortality in part due to missed diagnosis. Diagnostic methods with enhanced sensitivity using easy-to-obtain specimens are needed. We aimed to assess the diagnostic accuracy of the Cepheid Mycobacterium tuberculosis Host Response prototype cartridge (MTB-HR), a candidate test measuring a three-gene transcriptomic signature from fingerstick blood, in children with presumptive tuberculosis disease.
    Methods: RaPaed-TB was a prospective diagnostic accuracy study conducted at four sites in African countries (Malawi, Mozambique, South Africa, and Tanzania) and one site in India. Children younger than 15 years with presumptive pulmonary or extrapulmonary tuberculosis were enrolled between Jan 21, 2019, and June 30, 2021. MTB-HR was performed at baseline and at 1 month in all children and was repeated at 3 months and 6 months in children on tuberculosis treatment. Accuracy was compared with tuberculosis status based on standardised microbiological, radiological, and clinical data.
    Findings: 5313 potentially eligible children were screened, of whom 975 were eligible. 784 children had MTB-HR test results, of whom 639 had a diagnostic classification and were included in the analysis. MTB-HR differentiated children with culture-confirmed tuberculosis from those with unlikely tuberculosis with a sensitivity of 59·8% (95% CI 50·8-68·4). Using any microbiological confirmation (culture, Xpert MTB/RIF Ultra, or both), sensitivity was 41·6% (34·7-48·7), and using a composite clinical reference standard, sensitivity was 29·6% (25·4-34·2). Specificity for all three reference standards was 90·3% (95% CI 85·5-94·0). Performance was similar in different age groups and by malnutrition status. Among children living with HIV, accuracy against the strict reference standard tended to be lower (sensitivity 50·0%, 15·7-84·3) compared with those without HIV (61·0%, 51·6-69·9), although the difference did not reach statistical significance. Combining baseline MTB-HR result with one Ultra result identified 71·2% of children with microbiologically confirmed tuberculosis.
    Interpretation: MTB-HR showed promising diagnostic accuracy for culture-confirmed tuberculosis in this large, geographically diverse, paediatric cohort and hard-to-diagnose subgroups.
    Funding: European and Developing Countries Clinical Trials Partnership, UK Medical Research Council, Swedish International Development Cooperation Agency, Bundesministerium für Bildung und Forschung; German Center for Infection Research (DZIF).
    MeSH term(s) Child ; Humans ; Mycobacterium tuberculosis/genetics ; Prospective Studies ; Developing Countries ; Tuberculosis, Pulmonary/drug therapy ; Sensitivity and Specificity ; Tuberculosis/diagnosis ; South Africa ; Sputum/microbiology ; HIV Infections
    Language English
    Publishing date 2023-10-30
    Publishing country United States
    Document type Multicenter Study ; Journal Article
    ZDB-ID 2061641-7
    ISSN 1474-4457 ; 1473-3099
    ISSN (online) 1474-4457
    ISSN 1473-3099
    DOI 10.1016/S1473-3099(23)00491-7
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