Alcohol Use Disorder and Hepatitis C Prevention and Care in People Who Inject Drugs: The State of Play

Impaired health-related quality of life in the HCV cure era: who is concerned? (ANRS CO22 HEPATHER French cohort)

PURPOSE

Hepatitis C virus (HCV) cure after treatment with direct-acting antivirals (DAAs) can improve health-related quality of life (HRQoL). However, specific groups with chronic HCV may still exhibit worse post-cure HRQoL because of persisting severe liver fibrosis or social vulnerability factors (e.g. unhealthy alcohol use, living in poverty). We assessed the effect of such factors on longitudinal measures of HRQoL in chronic HCV patients.

METHODS

ANRS CO22 HEPATHER is a prospective cohort of chronic HCV patients receiving DAAs, which included notably patients with social vulnerability factors, a population usually under-represented in clinical trials. Multivariable mixed-effects linear regression models helped identify factors associated with longitudinal measures of HRQoL (PROQOL-HCV scores).

RESULTS

At enrolment, 52.4% of the 2740 participants were men, median age was 56 years [interquartile range 50-64], and 21.5% had severe liver fibrosis (FIB-4 > 3.25). Twenty-eight per cent reported current or past unhealthy alcohol use [> 2(3) alcohol units per day for women (men)], and 28.1% were living in poverty (standard of living under 1015€/month per household consumption unit). At first PROQOL-HCV completion, 54.0% of patients were HCV-cured. After multivariable adjustment, people with current or past unhealthy alcohol use, individuals living in poverty, those with severe liver fibrosis, and women had worse HRQoL in the dimensions explored. Conversely, HCV cure was associated with better HRQoL.

CONCLUSIONS

Specific socially vulnerable groups of patients with chronic HCV infection still experience impaired HRQoL, independently of HCV cure. Patient-centred interventions, including social support and referral for comorbidities, should be prioritized for them. Trial registration with ClinicalTrials.gov NCT01953458.

Alcohol Use

Unhealthy alcohol use-the consumption of alcohol at a level that has caused or has the potential to cause adverse physical, psychological, or social consequences-is common, underrecognized, and undertreated. For example, data from the 2020 National Survey on Drug Use and Health indicate that 7.0% of adults reported heavy alcohol use in the previous month, and only 4.2% of adults with alcohol use disorder received treatment. Primary care is an important setting for optimizing screening and treatment of unhealthy alcohol use to promote individual and public health.

Differences in the hepatitis C virus cascade of care and time to initiation of therapy among vulnerable subpopulations using a mobile unit as point-of-care

BACKGROUND AND AIMS

People who inject drugs (PWID) and other marginalized populations with high hepatitis C virus (HCV) infection rates represent a unique challenge for treatment initiation due to health, administrative and social barriers. We analysed the HCV cascade of care (CoC) in some vulnerable subpopulations in Madrid, Spain, when using a mobile point-of-care (PoC).

METHODS

From 2019 to 2021, a mobile unit was used to screen active HCV using a linkage-to-care and two-step PoC-based strategy. Viremic participants were grouped into four subgroups: PWID, homeless individuals and people with a mental health disorder (MHD) and alcohol use disorder (AUD). Logistic regression, and Cox and Aalen's additive models were used to analyse associated factors and differences between groups.

RESULTS

A prospectively recruited cohort of 214 HCV-infected individuals (73 PWID, 141 homeless, 57 with a MHD and 91 with AUD) participated in the study. The overall HCV CoC analysis found that 178 (83.1%) attended a hospital, 164 (76.6%) initiated direct-acting antiviral therapy and 141 (65.8%) completed therapy, of which 99 (95.2%) achieved sustained virological response (SVR). PWID were significantly less likely to initiate treatment, whereas individuals with AUD waited longer before starting the treatment. Both people with AUD and PWID were significantly less likely to complete HCV treatment.

CONCLUSIONS

Overall, SVR was achieved in the majority of the participants treated. However, PWID need better linkage to care and treatment, whereas PWID and AUD need more support for treatment completion.