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      Expanding Access to Treatment for Hepatitis C in Resource-Limited Settings: Lessons From HIV/AIDS

      , , , , , ,
      Clinical Infectious Diseases
      Oxford University Press (OUP)

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          Abstract

          The need to improve access to care and treatment for chronic hepatitis C virus (HCV) infection in resource-limited settings is receiving increasing attention. Key priorities for scaling up HCV treatment and care include reducing the cost of current and future treatment; simplifying the package of care; identifying opportunities to shift specific tasks to nonspecialists to overcome human resource constraints; service integration with human immunodeficiency virus (HIV) clinics, prison health services, and needle syringe and oral substitution therapy programs; improving surveillance, monitoring, and research; encouraging patient and community engagement; focusing specifically on the needs of vulnerable groups; and increasing financial and political commitment. Many of these obstacles have been addressed in rolling out treatment for human immunodeficiency virus during the last decade, and a number of lessons can be drawn to help improve access to HCV care.

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          Most cited references31

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          Outcomes of treatment for hepatitis C virus infection by primary care providers.

          The Extension for Community Healthcare Outcomes (ECHO) model was developed to improve access to care for underserved populations with complex health problems such as hepatitis C virus (HCV) infection. With the use of video-conferencing technology, the ECHO program trains primary care providers to treat complex diseases. We conducted a prospective cohort study comparing treatment for HCV infection at the University of New Mexico (UNM) HCV clinic with treatment by primary care clinicians at 21 ECHO sites in rural areas and prisons in New Mexico. A total of 407 patients with chronic HCV infection who had received no previous treatment for the infection were enrolled. The primary end point was a sustained virologic response. A total of 57.5% of the patients treated at the UNM HCV clinic (84 of 146 patients) and 58.2% of those treated at ECHO sites (152 of 261 patients) had a sustained viral response (difference in rates between sites, 0.7 percentage points; 95% confidence interval, -9.2 to 10.7; P=0.89). Among patients with HCV genotype 1 infection, the rate of sustained viral response was 45.8% (38 of 83 patients) at the UNM HCV clinic and 49.7% (73 of 147 patients) at ECHO sites (P=0.57). Serious adverse events occurred in 13.7% of the patients at the UNM HCV clinic and in 6.9% of the patients at ECHO sites. The results of this study show that the ECHO model is an effective way to treat HCV infection in underserved communities. Implementation of this model would allow other states and nations to treat a greater number of patients infected with HCV than they are currently able to treat. (Funded by the Agency for Healthcare Research and Quality and others.).
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            Diagnostic accuracy of FibroScan and comparison to liver fibrosis biomarkers in chronic viral hepatitis: a multicenter prospective study (the FIBROSTIC study).

            The diagnostic accuracy of non-invasive liver fibrosis tests that may replace liver biopsy in patients with chronic hepatitis remains controversial. We assessed and compared the accuracy of FibroScan® and that of the main biomarkers used for predicting cirrhosis and significant fibrosis (METAVIR ≥ F2) in patients with chronic viral hepatitis. A multicenter prospective cross-sectional diagnostic accuracy study was conducted in the Hepatology departments of 23 French university hospitals. Index tests and reference standard (METAVIR fibrosis score on liver biopsy) were measured on the same day and interpreted blindly. Consecutive patients with chronic viral hepatitis (hepatitis B or C virus, including possible Human Immunodeficiency Virus co-infection) requiring liver biopsy were recruited in the study. The analysis was first conducted on the total population (1839 patients), and after excluding 532 protocol deviations, on 1307 patients (non-compliant FibroScan® examinations). The overall accuracy of FibroScan® was high (AUROC 0.89 and 0.90, respectively) and significantly higher than that of biomarkers in predicting cirrhosis (AUROC 0.77-0.86). All non-invasive methods had a moderate accuracy in predicting significant fibrosis (AUROC 0.72-0.78). Based on multilevel likelihood ratios, non-invasive tests provided a relevant gain in the likelihood of diagnosis in 0-60% of patients (cirrhosis) and 9-30% of patients (significant fibrosis). The diagnostic accuracy of non-invasive tests was high for cirrhosis, but poor for significant fibrosis. A clinically relevant gain in the likelihood of diagnosis was achieved in a low proportion of patients. Although the diagnosis of cirrhosis may rely on non-invasive tests, liver biopsy is warranted to diagnose intermediate stages of fibrosis. Copyright © 2010 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
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              Global epidemiology of hepatitis C virus infection.

              Hepatitis C virus (HCV) is a major cause of liver disease worldwide and a potential cause of substantial morbidity and mortality in the future. The complexity and uncertainty related to the geographic distribution of HCV infection and chronic hepatitis C, determination of its associated risk factors, and evaluation of cofactors that accelerate its progression, underscore the difficulties in global prevention and control of HCV. Because there is no vaccine and no post-exposure prophylaxis for HCV, the focus of primary prevention efforts should be safer blood supply in the developing world, safe injection practices in health care and other settings, and decreasing the number of people who initiate injection drug use.
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                Author and article information

                Journal
                Clinical Infectious Diseases
                Clinical Infectious Diseases
                Oxford University Press (OUP)
                1058-4838
                1537-6591
                April 23 2012
                May 15 2012
                March 19 2012
                May 15 2012
                : 54
                : 10
                : 1465-1472
                Article
                10.1093/cid/cis227
                22431808
                8f6b12b7-2fda-4bf7-9d9d-33d0207a3f60
                © 2012
                History

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