Publications by authors named "Alphazazi Soumana"

Introduction: tuberculosis remains a major public health problem, with continuing high levels of prevalence, and mortality. In Niger, the incidence of tuberculosis remains high. This study aims to investigate the epidemiology of pulmonary tuberculosis at the National Anti-Tuberculosis Center of Niamey in Niger.

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Drug-resistant tuberculosis (DR-TB) poses a significant public health challenge, particularly in resource-limited settings. The prevalence and management of DR-TB in African countries require comprehensive strategies to improve patient outcomes and control the spread of the disease. Aggregated routine data (from 2018 to 2022) on multidrug-resistant TB (MDR-TB) were collected from the National TB Programs (NTPs) from all six countries.

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Objectives: High-dose rifampicin (R) and isoniazid (H) are known to be safe but were not yet combined in a single regimen. The primary objective of the TRIple-DOse RE-treatment (TRIDORE) study is to determine whether a 6-month firstline regimen with triple dose of both R and H (intervention arm; 6RHZE) is non-inferior in terms of safety compared to a normal-dose regimen (6RHZE) in previously treated patients with R-susceptible (Rs) recurrent tuberculosis (TB).

Design/methods: TRIDORE is an ongoing pragmatic open-label multi-stage randomized clinical trial.

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Article Synopsis
  • The project aimed to implement contact investigation (CI) methods in national tuberculosis programs across eight countries, focusing on children under 5 years and people living with HIV (PLHIV).
  • Over 9,000 home and clinic visits were conducted, revealing that 2.6% of children and 10.1% of PLHIV screened were diagnosed with active TB, with a high treatment uptake for both groups.
  • The initiative showed that CI can be effectively scaled up within existing TB programs in several African countries, leading to a successful implementation in six out of the eight participating nations by the end of 2021.
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Background: Rifampicin-resistant tuberculosis (RR-TB) treatment requires combination treatment, which frequently causes serious adverse events and globally results in not much more than 60% treatment success. In Niger, a high cure rate was obtained with a RR-TB treatment strategy based on a second-line injectable drug (SLID)-containing Short Treatment Regimen (STR), with linezolid replacing the SLID in patients with ototoxicity. Given the availability of novel anti-tuberculosis drugs, WHO recommends all-oral RR-TB treatment.

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Evidence suggests that the COVID-19 pandemic negatively impacts tuberculosis (TB) activities. As TB and COVID-19 have similar symptoms, we assessed the effectiveness of integrated TB/COVID-19 screening in Guinea and Niger. From May to December 2020, TB screening was offered to symptomatic patients after a negative COVID-19 PCR test or after recovery from COVID-19 in Guinea.

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Background: Outcomes of retreatment for rifampicin-resistant tuberculosis (RR-TB) are rarely reported. We report 'definitive outcomes' after a cascade approach to RR-TB treatment. After a bacteriologically adverse outcome for the 9-months fluoroquinolone-based Short Treatment Regimen (STR), patients were retreated with a bedaquiline-based regimen (BDQ-regimen).

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Over the past 15 years, and despite many difficulties, significant progress has been made to advance child and adolescent tuberculosis (TB) care. Despite increasing availability of safe and effective treatment and prevention options, TB remains a global health priority as a major cause of child and adolescent morbidity and mortality-over one and a half million children and adolescents develop TB each year. A history of the global public health perspective on child and adolescent TB is followed by 12 narratives detailing challenges and progress in 19 TB endemic low and middle-income countries.

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The short treatment regimen (STR) achieves a >80% cure in rifampicin-resistant tuberculosis (RR-TB) patients. However, ototoxicity induced by the injectable is a concern. This is the first study to evaluate the replacement of injectables by linezolid in patients with audiometry abnormalities at baseline or during the treatment.

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Background: In Niger, the Shorter Treatment Regimen (STR) has been implemented nationwide for rifampicin resistant tuberculosis (RR-TB), since 2008. No previous publication has shown the results from countrywide programmatic implementation using few exclusion criteria, nor exhaustively assessed the effect of initial resistance to companion drugs on outcomes.

Methods: The National Tuberculosis Programme and the Damien Foundation conducted a retrospective observational study to evaluate the management of RR-TB from 2008 to 2016.

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