Treatment outcomes for drug resistant tuberculosis among children below 15 years in Kenya, 2010‐2016

Background: Tuberculosis is a common cause of morbidity and mortality in children. Children are less likely to acquire resistance during the treatment of tuberculosis (TB). Most of the drug resistant TB infection in children is transmitted from adults.Objective: To determine the characteristics and treatment outcomes among children below 15 years managed for drug resistant TB in Kenya, 2010 – 2016.Design: Retrospective descriptive study.Setting: All health facilities managing drug resistant TB in KenyaSubjects: Children below 15 years treated for drug resistant TB between 2010 and 2016.Results: Sixty three children were notified with DR TB between 2010 and 2016. The median (IQR) age was11 (10‐13) years with a female to male ratio of 1:1. With 32 (52%) and 31 (51%) with smear and culture positive laboratory results respectively. Primary drug resistance was present in 25 (40%) of the children All the sputum and culture converted negative at month three of treatment. HIV testing uptake was 100% with a positivity rate of 26 (41%) and 100% anti‐retroviral therapy uptake. The treatment success rate for the cases was 31(91%) with a mortality rate of 2(5%) and lost‐to‐follow up 1 (3%).Conclusion: Drug‐resistant tuberculosis can be successfully treated and therapy well tolerated among children. There  is need for contact tracing and screening for all at risk including paediatric population

Drug resistant tuberculosis in Kenya: trends, characteristics and treatment outcomes, 2008 – 2016

Background: Drug resistant (DR) tuberculosis (TB) remains a major public health concern. Failure to treat patients with TB adequately increases the risk of transmission of infection to the general population. Treatment of DR TB is characterized by lengthy treatment duration, use of toxic and less effective drugs and high likelihood of adverse treatment outcomes that include adverse drug reactions, high mortality and loss to follow up.Objective: To determine the trends, characteristics and treatment outcomes of patients >15 years notified with DR‐TB in Kenya from 2008 to 2016Design: Retrospective descriptive cross‐sectional studySetting: Tuberculosis treatment centers in KenyaSubjects: Persons above 15 years notified with DR TBResults: We reviewed records of 1903 DR‐TB patients who were notified between 2008 and 2016. The public sector made the highest contribution of the notified cases (80%). Most of the cases were male (62.3%). The HIV testing rate was 99.5%, with the TB/HIV co‐infection being 36%. Initiation of antiretroviral therapy among those who tested positive for HIV was 94.6%. Co‐trimoxazole preventive therapy uptake was 99.3%. Most patients had secondary DRTB (77.3%). Multi‐drug resistant TB accounted for 78.4% of the DR TB cases while mono drug resistance was observed in 26% of the cases. Treatment success was achieved in 79% of the cases. Mortality and treatment failure during the study period was 11% and 0.2% respectively.Conclusion: An upward trend in notified DR‐TB cases was observed during the period under review. The public sector gave the most contribution. Active surveillance on patients lost to follow up while on treatment and poor drug adherence will be of importance to reduce the potential of development of drug resistance

Safety of Treatment Regimens Containing Bedaquiline and Delamanid in the endTB Cohort.

BACKGROUND: Safety of treatment for multidrug-resistant tuberculosis (MDR/RR-TB) can be an obstacle to treatment completion. Evaluate safety of longer MDR/RR-TB regimens containing bedaquiline and/or delamanid. METHODS: Multicentre (16 countries), prospective, observational study reporting incidence and frequency of clinically relevant adverse events of special interest (AESIs) among patients who received MDR/RR-TB treatment containing bedaquiline and/or delamanid. The AESIs were defined a priori as important events caused by bedaquiline, delamanid, linezolid, injectables, and other commonly used drugs. Occurrence of these events was also reported by exposure to the likely causative agent. RESULTS: Among 2296 patients, the most common clinically relevant AESIs were peripheral neuropathy (26.4%), electrolyte depletion (26.0%), and hearing loss (13.2%) with an incidence per 1000 person months of treatment, 1000 person-months of treatment 21.5 (95% confidence interval [CI]: 19.8-23.2), 20.7 (95% CI: 19.1-22.4), and 9.7 (95% CI: 8.6-10.8), respectively. QT interval was prolonged in 2.7% or 1.8 (95% CI: 1.4-2.3)/1000 person-months of treatment. Patients receiving injectables (N = 925) and linezolid (N = 1826) were most likely to experience events during exposure. Hearing loss, acute renal failure, or electrolyte depletion occurred in 36.8% or 72.8 (95% CI: 66.0-80.0) times/1000 person-months of injectable drug exposure. Peripheral neuropathy, optic neuritis, and/or myelosuppression occurred in 27.8% or 22.8 (95% CI: 20.9-24.8) times/1000 patient-months of linezolid exposure. CONCLUSIONS: AEs often related to linezolid and injectable drugs were more common than those frequently attributed to bedaquiline and delamanid. MDR-TB treatment monitoring and drug durations should reflect expected safety profiles of drug combinations. CLINICAL TRIALS REGISTRATION: NCT02754765

Building a tuberculosis-free world: The Lancet Commission on tuberculosis

___Key messages___ The Commission recommends five priority investments to achieve a tuberculosis-free world within a generation. These investments are designed to fulfil the mandate of the UN High Level Meeting on tuberculosis. In addition, they answer

Optimizing diagnostic networks to increase patient access to TB diagnostic services: Development of the diagnostic network optimization (DNO) approach and learnings from its application in Kenya, India and the Philippines.

Diagnostic network optimization (DNO) is an analytical approach that enables use of available country data to inform evidence-based decision-making to optimize access to diagnostic services. A DNO methodology was developed using available data sources and a commercial supply chain optimization software. In collaboration with Ministries of Health and partners, the approach was applied in Kenya, India and the Philippines to map TB diagnostic networks, identify misalignments, and determine optimal network design to increase patient access to TB diagnostic services and improve device utilization. The DNO analysis was successfully applied to evaluate and inform TB diagnostic services in Kenya, India and the Philippines as part of national strategic planning for TB. The analysis was tailored to each country's specific objectives and allowed evaluation of factors such as the number and placement of different TB diagnostics, design of sample referral networks and integration of early infant diagnosis for HIV at national and sub-national levels and across public and private sectors. Our work demonstrates the value of DNO as an innovative approach to analysing and modelling diagnostic networks, particularly suited for use in low-resource settings, as an open-access approach that can be applied to optimize networks for any disease

Map of Horn of Africa region showing key locations and also migration patterns for Somali refugees.

<p>Map of Horn of Africa region showing key locations and also migration patterns for Somali refugees.</p

Kenya tuberculosis prevalence survey 2016: Challenges and opportunities of ending TB in Kenya.

BackgroundWe aimed to determine the prevalence of pulmonary TB amongst the adult population (≥15 years) in 2016 in Kenya.MethodA nationwide cross-sectional survey where participants first underwent TB symptom screening and chest x-ray. Subsequently, participants who reported cough >2weeks and/or had a chest x-ray suggestive of TB, submitted sputum specimen for laboratory examination by smear microscopy, culture and Xpert MTB/RIF.ResultThe survey identified 305 prevalent TB cases translating to a prevalence of 558 [95%CI 455-662] per 100,000 adult population. The highest disease burden was reported among people aged 25-34 years (716 [95% CI 526-906]), males (809 [(95% CI 656-962]) and those who live in urban areas (760 [95% CI 539-981]). Compared to the reported TB notification rate for Kenya in 2016, the prevalence to notification ratio was 2.5:1. The gap between the survey prevalence and notification rates was highest among males, age groups 25-34, and the older age group of 65 years and above. Only 48% of the of the survey prevalent cases reported cough >2weeks. In addition, only 59% of the identified cases had the four cardinal symptoms for TB (cough ≥2 weeks, fever, night sweat and weight loss. However, 88.2% had an abnormal chest x-ray suggestive of TB. The use of Xpert MTB/RIF identified 77.7% of the cases compared to smear microscopy's 46%. Twenty-one percent of the survey participants with respiratory symptoms reported to have sought prior health care at private clinics and chemists. Among the survey prevalent cases who reported TB related symptoms, 64.9% had not sought any health care prior to the survey.ConclusionThis survey established that TB prevalence in Kenya is higher than had been estimated, and about half of the those who fall ill with the disease each year are missed