Hepatitis C virus (HCV) treatment is essential for eliminating HCV in people who inject drugs (PWID), but has limited coverage in resource-limited settings. We measured the cost-effectiveness of a pilot HCV screening and treatment intervention using directly observed therapy among PWID attending harm reduction services in Nairobi, Kenya.
DESIGN
We utilized an existing model of HIV and HCV transmission among current and former PWID in Nairobi to estimate the cost-effectiveness of screening and treatment for HCV, including prevention benefits versus no screening and treatment. The cure rate of treatment and costs for screening and treatment were estimated from intervention data, while other model parameters were derived from literature. Cost-effectiveness was evaluated over a life-time horizon from the health-care provider's perspective. One-way and probabilistic sensitivity analyses were performed.
SETTING
Nairobi, Kenya.
POPULATION
PWID.
MEASUREMENTS
Treatment costs, incremental cost-effectiveness ratio (cost per disability-adjusted life year averted).
FINDINGS
The cost per disability-adjusted life-year averted for the intervention was $975, with 92.1% of the probabilistic sensitivity analyses simulations falling below the per capita gross domestic product for Kenya ($1509; commonly used as a suitable threshold for determining whether an intervention is cost-effective). However, the intervention was not cost-effective at the opportunity cost-based cost-effectiveness threshold of $647 per disability-adjusted life-year averted. Sensitivity analyses showed that the intervention could provide more value for money by including modelled estimates for HCV disease care costs, assuming lower drug prices ($75 instead of $728 per course) and excluding directly-observed therapy costs.
CONCLUSIONS
The current strategy of screening and treatment for hepatitis C virus (HCV) among people who inject drugs in Nairobi is likely to be highly cost-effective with currently available cheaper drug prices, if directly-observed therapy is not used and HCV disease care costs are accounted for.
Despite concerted efforts, Ukraine is challenged by increasing rates of multidrug and rifampicin-resistant tuberculosis (MDR/RR-TB) comorbid with alcohol use disorder (AUD). This study describes a cohort of RR-TB patients with high alcohol consumption treated in MSF Zhytomyr Project, Ukraine.
METHODOLOGY
We used programmatic data for 73 RR-TB patients screened with the AUD Identification Test March-July 2019 and followed-up for culture conversion/TB treatment outcome till 31 January 2020. We described socio-demographic, behavioral, and clinical characteristics, the level of depressive symptoms, and TB treatment outcomes in three groups: 1) patients with AUD who received mental health interventions (MHI); 2) patients with AUD who did not receive MHI; 3) patients with no AUD. We also found three potential contributors to declining to receive MHI.
RESULTS
Main characteristics of the study groups did not differ substantially. Those receiving MHI (mean: nine sessions) were rated for alcohol consumption as 'hazardous' (41%), 'harmful' (43%) and 'dependence' (36%) and had higher depression scores versus the second (p=0.009) and third (p=0.095) groups at baseline. Depressive symptoms declined at 9-month follow-up for all patients. Culture conversion was seen at 77%, 73%, and 83% for each group respectively. We also found three reasons for declining from MHI.
CONCLUSIONS
We detected little differences across the groups. However, our study cohort demonstrated substantially higher adherence rates, culture conversion and reduction of depressive symptoms than reported globally. We recommend further research on the effectiveness of MHI in changing the drinking habits, quality of life and/or TB treatment outcomes of patients with AUD.
BACKGROUND
TB is concentrated in populations with complex health and social issues, including alcohol use disorders (AUD). We describe treatment adherence and outcomes in a person-centred, multidisciplinary, psychosocial support and harm reduction intervention for people with multidrug-resistant or rifampicin-resistant TB (MDR/RR-TB) with harmful alcohol use.
METHODS
An observational cohort study, including multilevel mixed-effects logistic regression and survival analysis with people living in Minsk admitted with MDR/RR-TB and AUD during January 2019–November 2021 who received this person-centred, multidisciplinary, psychosocial support and harm reduction intervention, was conducted.
RESULTS
There were 89 participants enrolled in the intervention, with a median follow-up of 12.2 (IQR: 8.1–20.5) mo. The majority (n=80; 89.9%) of participants had AUD, 11 (12.4%) also had a dependence on other substances, six (6.7%) a dependence on opioids and three (3.4%) a personality disorder. Fifty-eight had a history of past incarceration (65.2%), homelessness (n=9; 10.1%) or unemployment (n=55; 61.8%). Median adherence was 95.4% (IQR: 90.4–99.6%) and outpatient adherence was 91.2% (IQR: 65.1–97.0%). Lower adherence was associated with hepatitis C, alcohol plus other substance use and outpatient facility-based treatment, rather than video-observed treatment, home-based or inpatient treatment support.
CONCLUSIONS
This intervention led to good adherence to MDR/RR-TB treatment in people with harmful use of alcohol, a group usually at risk of poor outcomes. Poor outcomes were associated with hepatitis C, other substance misuse and outpatient facility-based treatment support.