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Howie CM, Cichos KH, Shoreibah MG, Jordan EM, Niknam KR, Chen AF, Hansen EN, McGwin GG, Ghanem ES. Racial Disparities in Treatment and Outcomes of Patients With Hepatitis C Undergoing Elective Total Joint Arthroplasty. J Arthroplasty 2024; 39:1671-1678. [PMID: 38331360 DOI: 10.1016/j.arth.2024.01.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND African Americans have the highest prevalence of chronic Hepatitis C virus (HCV) infection. Racial disparities in outcome are observed after elective total hip arthroplasty (THA) and total knee arthroplasty (TKA). This study sought to identify if disparities in treatments and outcomes exist between Black and White patients who have HCV prior to elective THA and TKA. METHODS Patient demographics, comorbidities, HCV characteristics, perioperative variables, in-hospital outcomes, and postoperative complications at 1-year follow-up were collected and compared between the 2 races. Patients who have preoperative positive viral load (PVL) and undetectable viral load were identified. Chi-square and Fisher's exact tests were used to compare categorical variables, while 2-tailed Student's Kruskal-Wallis t-tests were used for continuous variables. A P value of less than .05 was statistically significant. RESULTS The liver function parameters, including aspartate aminotransferase and model for end-stage liver disease scores, were all higher preoperatively in Black patients undergoing THA (P = .01; P < .001) and TKA (P = .03; P = .003), respectively. Black patients were more likely to undergo THA (65.8% versus 35.6%; P = .002) and TKA (72.1% versus 37.3%; 0.009) without receiving prior treatment for HCV. Consequently, Black patients had higher rates of preoperative PVL compared to White patients in both THA (66% versus 38%, P = .006) and TKA (72% versus 37%, P < .001) groups. Black patients had a longer length of stay for both THA (3.7 versus 3.3; P = .008) and TKA (4.1 versus 3.0; P = .02). CONCLUSIONS The HCV treatment prior to THA and TKA with undetectable viral load has been shown to be a key factor in mitigating postoperative complications, including joint infection. We noted that Black patients were more likely to undergo joint arthroplasty who did not receive treatment and with a PVL. While PVL rates decreased over time for both races, a significant gap persists for Black patients.
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Affiliation(s)
- Cole M Howie
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kyle H Cichos
- Hughston Foundation, Columbus, Georgia; Hughston Clinic, Columbus, Georgia
| | - Mohamed G Shoreibah
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Eric M Jordan
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts; Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Kian R Niknam
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts; Department of Orthopaedic Surgery, Harvard Medical School, Boston, Massachusetts
| | - Erik N Hansen
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California
| | - Gerald G McGwin
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Elie S Ghanem
- Department of Orthopaedic Surgery, University of Missouri at Columbia, Columbia, Missouri
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Treatment of Hepatitis C Virus Prior to Posterior Lumbar Fusion: No Difference in Medical Outcomes or Reoperation. Clin Spine Surg 2022:01933606-990000000-00067. [PMID: 36006411 DOI: 10.1097/bsd.0000000000001368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 06/29/2022] [Indexed: 11/26/2022]
Abstract
STUDY DESIGN Retrospective cohort. OBJECTIVE To analyze and confirm the rates of postoperative complications of patients with hepatitis C virus (HCV) undergoing primary posterior lumbar fusion (PLF) and assess whether treatment of HCV before surgery reduces complications. BACKGROUND CONTEXT HCV causes chronic disease, leading to increased risk of cirrhosis and chronic illness. Currently, there is a lack of research regarding whether the patient's HCV is a modifiable risk factor for postoperative complications after spinal procedures. METHODS The Mariner database was utilized to find patients from 2010 to 2018 undergoing PLF with active follow-up for a year. Cases involving same-day revision procedures and patients with a history of spine, infection, trauma, human immunodeficiency virus, hepatitis B, or neoplasm were excluded. Patients with a history of HCV diagnosis were identified and further stratified whether they had prior treatment using the national drug codes for antiviral, interferons, or ribavirin. Patients with HCV were matched with those without respect to age, sex, and comorbidity of burden. Outcome measured included 90-day medical complications, infection, readmission, and 1-year reoperation. RESULTS There were 2,129 patients with HCV and 10,544 patients in the matched control group who underwent primary PLF. Out of the 2,129 patients, 469 (22.0.%) were treated with HCV medications before surgery. Patients with prior history of HCV had a significantly increased risk of wound complications (4.4% vs. 3.2%, odds ratio 1.56, 95% confidence interval 1.24-1.96, P=0.009), and infection (7.7% vs. 5.7%, odds ratio 1.26, 95% confidence interval 1.07-1.53, P=0.009) within 90 days of surgery. Patients treated before surgery did not have a difference in major (P=0.205) or minor medical complications (P=0.681) after surgery. CONCLUSIONS Patients with prior history of HCV are at increased risk for many complications after surgery; however, this risk factor does not seem to be modifiable as the treatment group did not experience any improvement in postoperative outcomes. LEVEL OF EVIDENCE Level III.
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3
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Liu JJ. Disparity in the Care of Black Inflammatory Bowel Disease Patients. Inflamm Bowel Dis 2021; 27:1548-1549. [PMID: 34037231 DOI: 10.1093/ibd/izab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Indexed: 12/09/2022]
Affiliation(s)
- Julia J Liu
- Division of Gastroenterology, Morehouse School of Medicine, Atlanta, GA 30310, USA
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Kulkeaw K, Pengsart W. Progress and Challenges in the Use of a Liver-on-a-Chip for Hepatotropic Infectious Diseases. MICROMACHINES 2021; 12:mi12070842. [PMID: 34357252 PMCID: PMC8306537 DOI: 10.3390/mi12070842] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/13/2021] [Accepted: 07/17/2021] [Indexed: 12/16/2022]
Abstract
The liver is a target organ of life-threatening pathogens and prominently contributes to the variation in drug responses and drug-induced liver injury among patients. Currently available drugs significantly decrease the morbidity and mortality of liver-dwelling pathogens worldwide; however, emerging clinical evidence reveals the importance of host factors in the design of safe and effective therapies for individuals, known as personalized medicine. Given the primary adherence of cells in conventional two-dimensional culture, the use of these one-size-fit-to-all models in preclinical drug development can lead to substantial failures in assessing therapeutic safety and efficacy. Advances in stem cell biology, bioengineering and material sciences allow us to develop a more physiologically relevant model that is capable of recapitulating the human liver. This report reviews the current use of liver-on-a-chip models of hepatotropic infectious diseases in the context of precision medicine including hepatitis virus and malaria parasites, assesses patient-specific responses to antiviral drugs, and designs personalized therapeutic treatments to address the need for a personalized liver-like model. Second, most organs-on-chips lack a monitoring system for cell functions in real time; thus, the review discusses recent advances and challenges in combining liver-on-a-chip technology with biosensors for assessing hepatocyte viability and functions. Prospectively, the biosensor-integrated liver-on-a-chip device would provide novel biological insights that could accelerate the development of novel therapeutic compounds.
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Affiliation(s)
- Kasem Kulkeaw
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
- Correspondence: ; Tel.: +66-2-419-6468 (ext. 96484)
| | - Worakamol Pengsart
- Faculty of Graduate Studies, Mahidol University, Nakhon Pathom 73170, Thailand;
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5
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Arif A, Rashid N, Akhtar M. Removal of N-terminal methionine of human interferon α-2b by co‐producing with Pyrococcus furiosus methionine aminopeptidase in Escherichia coli. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00728-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Fang MZ, Jackson SS, O'Brien TR. IFNL4: Notable variants and associated phenotypes . Gene 2019; 730:144289. [PMID: 31846709 DOI: 10.1016/j.gene.2019.144289] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023]
Abstract
Interferon lambda proteins activate the JAK-STAT signalling pathway, resulting in upregulation of genes with antiviral effects. The interferon lambda family was initially thought to be redundant to the interferon alpha family, which signals through the same pathway, except for the more limited expression of the IFNLR1 receptor. However, recent studies show that interferon lambdas uniquely protect tissue barriers against a wide range of important viral infections. The interferon lambda 4 gene (IFNL4) was discovered in 2013. The IFNL4 protein is determined by the IFNL4-ΔG/TT (rs368234815) variant. The ancestral IFNL4-ΔG allele generates IFNL4, whereas IFNL4-TT causes pre-mature termination of the protein. Surprisingly, although interferons are generally antiviral proteins, the genotypes that generate the IFNL4 protein are strongly linked to impaired clearance of hepatitis C virus (HCV). IFNL4 genotype has also been linked to variation within the HCV genome, as well as risk of hepatic fibrosis, certain cancers and some infectious diseases. There has been very strong evolutionary selection against the ancestral IFNL4-ΔG allele, which is the major form in African populations, but the minor allele in Europeans and Asians. The reason for this selection and the biological mechanisms underlying observed phenotypic associations remain to be explained.
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Affiliation(s)
- Michelle Z Fang
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Dr, 6E108, MSC 9767, Bethesda, MD 20892, USA
| | - Sarah S Jackson
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Dr, 6E108, MSC 9767, Bethesda, MD 20892, USA
| | - Thomas R O'Brien
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Dr, 6E108, MSC 9767, Bethesda, MD 20892, USA.
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7
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Jhaveri R. "Here Today, Gone Tomorrow" or "Here Today, Stay a Long While": The Divergent Paths of Two Host Factors Important in Viral Infections. Clin Ther 2019; 41:1907-1911. [PMID: 31447128 DOI: 10.1016/j.clinthera.2019.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/10/2019] [Accepted: 07/23/2019] [Indexed: 12/12/2022]
Abstract
Host factors are critically important in governing the susceptibility and severity of most viral infections. The importance of these host factors is governed by the prevalence of the virus and the availability of effective therapeutic and/or preventive measures. This commentary highlights two such host factors that were initially judged to be important but over time have moved in opposite directions: hepatitis C virus and the IL28B locus as well as HIV and the Δ32-CCR5 mutation.
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Affiliation(s)
- Ravi Jhaveri
- Division of Pediatric Infectious Diseases, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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8
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McLean RC, Reese PP, Acker M, Atluri P, Bermudez C, Goldberg LR, Abt PL, Blumberg EA, Van Deerlin VM, Reddy KR, Bloom RD, Hasz R, Suplee L, Sicilia A, Woodards A, Zahid MN, Bar KJ, Porrett P, Levine MH, Hornsby N, Gentile C, Smith J, Goldberg DS. Transplanting hepatitis C virus-infected hearts into uninfected recipients: A single-arm trial. Am J Transplant 2019; 19:2533-2542. [PMID: 30768838 DOI: 10.1111/ajt.15311] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/10/2019] [Accepted: 02/11/2019] [Indexed: 02/06/2023]
Abstract
The advent of direct-acting antiviral therapy for hepatitis C virus (HCV) has generated tremendous interest in transplanting organs from HCV-infected donors. We conducted a single-arm trial of orthotopic heart transplantation (OHT) from HCV-infected donors into uninfected recipients, followed by elbasvir/grazoprevir treatment after recipient HCV was first detected (NCT03146741; sponsor: Merck). We enrolled OHT candidates aged 40-65 years; left ventricular assist device (LVAD) support and liver disease were exclusions. We accepted hearts from HCV-genotype 1 donors. From May 16, 2017 to May 10, 2018, 20 patients consented for screening and enrolled, and 10 (median age 52.5 years; 80% male) underwent OHT. The median wait from UNOS opt-in for HCV nucleic-acid-test (NAT)+ donor offers to OHT was 39 days (interquartile range [IQR] 17-57). The median donor age was 34 years (IQR 31-37). Initial recipient HCV RNA levels ranged from 25 IU/mL to 40 million IU/mL, but all 10 patients had rapid decline in HCV NAT after elbasvir/grazoprevir treatment. Nine recipients achieved sustained virologic response at 12 weeks (SVR-12). The 10th recipient had a positive cross-match, experienced antibody-mediated rejection and multi-organ failure, and died on day 79. No serious adverse events occurred from HCV transmission or treatment. These short-term results suggest that HCV-negative candidates transplanted with HCV-infected hearts have acceptable outcomes.
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Affiliation(s)
- Rhondalyn C McLean
- Division of Cardiovascular Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Peter P Reese
- Renal-Electrolyte and Hypertension Division, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Biostatistics, Epidemiology and Bioinformatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael Acker
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Pavan Atluri
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Christian Bermudez
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lee R Goldberg
- Division of Cardiovascular Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Peter L Abt
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Emily A Blumberg
- Division of Infectious Diseases, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Vivianna M Van Deerlin
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - K Rajender Reddy
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Roy D Bloom
- Renal-Electrolyte and Hypertension Division, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Richard Hasz
- Gift of Life Donor Program, Philadelphia, Pennsylvania
| | | | - Anna Sicilia
- Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania
| | - Ashley Woodards
- Department of Biostatistics, Epidemiology and Bioinformatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Muhammad Nauman Zahid
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Katharine J Bar
- Division of Infectious Diseases, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Paige Porrett
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew H Levine
- Department of Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Nicole Hornsby
- Division of Cardiovascular Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Caren Gentile
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Jennifer Smith
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - David S Goldberg
- Renal-Electrolyte and Hypertension Division, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Division of Gastroenterology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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9
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Tam E, Borgia S, Yoshida EM, Cooper C, Ford JA, Vachon ML, Sherman M, Halsey-Brandt J. Real-world health care utilization in treatment of HCV: Results from the Canadian SIMPLE observational trial. CANADIAN LIVER JOURNAL 2019; 2:91-107. [DOI: 10.3138/canlivj.2018-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 12/13/2018] [Indexed: 11/20/2022]
Abstract
Background: As hepatitis C virus (HCV) treatment continues to evolve, there is an ongoing need to understand and optimize real-world disease management. The primary objective of the SIMPLE study was to describe the real-life management of genotype 1 (G1) HCV in Canada treated with boceprevir + pegylated interferon and ribavirin therapy. Methods: This was an observational, prospective cohort, multicentre, non-interventional study of patients with G1 HCV. A single cohort of adult patients were to be managed as per standard of care (SoC) and treated with 4 weeks of PegRBV dual therapy, followed by boceprevir + PegRBV for 24–44 weeks, with 24-weeks follow-up. Treatment compliance, health care resource utilization (HCRU), HCV viral load, and hematological adverse event (AE) data were collected. Results: This study enrolled 159 patients. All investigators were well educated on the Canadian consensus guidelines for HCV management but only a minority of patients were treated according to treatment guidelines. Viral response was achieved by >50% of patients by week 8 of therapy and in 50%–60% of tested patients during follow-up. An average of 17.9 HCRU visits were reported during the study period. The most commonly used resources were nursing visits for routine follow-up. Conclusions: Results from this real-world study suggest that most patients were not treated according to the product monograph. Further studies are required to determine how oral treatments fit into this paradigm and how these findings extrapolate to the current treatment model. This study can serve as a benchmark for future real-world treatment including heath care utilization analyses.
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Affiliation(s)
- Edward Tam
- LAIR Centre, Vancouver, British Columbia
| | | | | | | | - Jo-Ann Ford
- Vancouver General Hospital, Vancouver, British Columbia
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10
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O'Brien TR, Jackson SS. What Have We Learned from Studies of IFN-λ Variants and Hepatitis C Virus Infection? J Interferon Cytokine Res 2019; 39:618-626. [PMID: 31161939 DOI: 10.1089/jir.2019.0048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic infection with the hepatitis C virus (HCV) is a major cause of cirrhosis and hepatocellular carcinoma. In 2009, genome-wide association studies (GWAS) strongly linked genetic variants in the interferon lambda (IFN-λ) chromosomal region to HCV clearance. In 2013, discovery of the IFNL4 gene provided a functional explanation for those GWAS findings. The IFNL4-ΔG/TT (rs368234815) variant controls generation of the IFN-λ4 protein. Paradoxically, the IFNL4-TT allele, which abrogates IFN-λ4, associates with higher rates of spontaneous HCV clearance and better response to treatments for HCV infection. The finding that a "knock-out" allele for IFN-λ4 enhances HCV clearance challenges the paradigm of IFNs as antiviral cytokines. Genetic variants in the IFN-λ region have also been associated with hepatic inflammation and fibrosis from various etiologies, however, alleles that are linked with improved HCV clearance associates with worse inflammation and fibrosis. These studies demonstrate that GWAS of infectious diseases may yield important and unexpected biological insights.
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Affiliation(s)
- Thomas R O'Brien
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Sarah S Jackson
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
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11
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Jain MK, Thamer M, Therapondos G, Shiffman ML, Kshirsagar O, Clark C, Wong RJ. Has Access to Hepatitis C Virus Therapy Changed for Patients With Mental Health or Substance Use Disorders in the Direct-Acting-Antiviral Period? Hepatology 2019; 69:51-63. [PMID: 30019478 DOI: 10.1002/hep.30171] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 07/05/2018] [Indexed: 12/20/2022]
Abstract
Direct-acting antivirals (DAA) for hepatitis C virus (HCV) became available in 2014, but the role of mental health or substance use disorders (MH/SUD) on access to treatment is unknown. The objective of this study was to examine the extent and predictors of HCV treatment in the pre-DAA and post-DAA periods in four large, diverse health care settings in the United States. We conducted a retrospective analysis of 29,544 adults with chronic HCV who did or did not receive treatment from January 1, 2011, to February 28, 2017. Kaplan-Meier curve was used to examine cumulative risk for receiving HCV treatment stratified by MH/SUD. Predictors of HCV treatment in the pre-DAA (January 1, 2011, to December 31, 2013) and post-DAA (January 1, 2014, to February 28, 2017) cohorts were analyzed using multivariate generalized estimating equations and a modified Poisson model. Overall, 21.7% (2,879/13,240) of those with chronic HCV post-DAA were treated compared with 3.5% (574/16,304) in the pre-DAA period. Compared with non-Hispanic whites, Hispanic whites (adjusted odds ratio [AOR] 0.36; 95% confidence interval [CI], 0.25, 0.52) were less likely to be treated in the post-DAA period. Those with concurrent nonalcoholic fatty liver disease (AOR 1.39; 95% CI, 1.05, 1.83), cirrhosis (AOR 2.00; 95% CI, 1.74, 2.31), and liver transplant (AOR 2.72; 95% CI, 1.87, 3.94) were more likely to be treated post-DAA. Those with MH/SUD were less likely to be treated both before (AOR 0.46; 95% CI, 0.36, 0.60) and after (AOR 0.63; 95% CI, 0.55, 0.71) DAA therapy was available. Overall, the cumulative risk for receiving HCV treatment from 2011 to 2017 among those with versus without MH/SUD was 13.6% versus 21.6%, respectively (P < 0.001). Conclusion: The volume of patients treated for HCV has increased in the post-DAA period, especially among those with liver-related comorbidities, but disparities in access to treatment continue among those with MH/SUD.
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Affiliation(s)
- Mamta K Jain
- Division of Infectious Diseases, University of Texas Southwestern Medical Center, Dallas, TX.,Parkland Health and Hospital System, Dallas, TX
| | - Mae Thamer
- Medical Technology and Practice Patterns Institute, Bethesda, MD
| | - George Therapondos
- Multi-Organ Transplant Institute, Ochsner Health System, New Orleans, LA
| | | | - Onkar Kshirsagar
- Medical Technology and Practice Patterns Institute, Bethesda, MD
| | | | - Robert J Wong
- Division of Gastroenterology & Hepatology, Alameda Health System - Highland Hospital, Oakland, CA
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12
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Intensive Pharmacy Care Improves Outcomes of Hepatitis C Treatment in a Vulnerable Patient Population at a Safety-Net Hospital. Dig Dis Sci 2018; 63:3241-3249. [PMID: 30078116 PMCID: PMC6770976 DOI: 10.1007/s10620-018-5231-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/30/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Treatment of hepatitis C virus (HCV) with direct-acting antiviral (DAA) regimens has resulted in high rates of sustained virologic response (SVR). Treatment of vulnerable populations may be improved by incorporating an on-site intensive specialty pharmacy (ON-ISP). AIMS To describe outcomes of HCV treatment at a safety-net hospital and proportion of subjects achieving SVR for those using the ON-ISP compared to an off-site pharmacy (OFF-SP). METHODS A retrospective cohort study of 219 subjects treated for HCV with DAA at Boston Medical Center was conducted. Subject characteristics, virologic response, and pharmacy services used were recorded. We used multivariable logistic regression to test the association between ON-ISP and SVR after adjusting for covariates. RESULTS SVR occurred in 71% of subjects by intention-to-treat (73% among ON-ISP users vs 57% among OFF-SP users) and 95% completing treatment per-protocol (96% among ON-ISP users vs 87% among OFF-SP users). Adjustment for age, sex, ethnicity, insurance, fibrosis, prior treatment, and MELD revealed an increased likelihood of SVR among users of ON-ISP: OR 6.0 (95% CI 1.18-31.0). No significant difference in treatment delay or adverse events was seen among users of either pharmacy type. CONCLUSIONS HCV treatment with DAA was well tolerated, but the rate of SVR was low (71%) compared to trials. This was due to loss to follow-up, as the per-protocol rate of SVR was much higher (95%). Use of ON-ISP was associated with an increase in SVR and may be valuable for improving care for vulnerable populations.
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13
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Wei L, Wedemeyer H, Liaw YF, Chan HLY, Piratvisuth T, Marcellin P, Jia J, Tan D, Chow WC, Brunetto MR, Diago M, Gurel S, Morozov V, He H, Zhu Y, Wat C, Surujbally B, Thompson AJ. No association between IFNL3 (IL28B) genotype and response to peginterferon alfa-2a in HBeAg-positive or -negative chronic hepatitis B. PLoS One 2018; 13:e0199198. [PMID: 30016335 PMCID: PMC6049926 DOI: 10.1371/journal.pone.0199198] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 05/22/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND & AIMS It has yet to be firmly established whether host IFNL3 (IL28B) genotype influences interferon responsiveness in patients with chronic hepatitis B. We investigated associations between single-nucleotide polymorphisms (SNPs) in the IFNL3 region and response to peginterferon alfa-2a in 701 patients enrolled in three large, randomized, international studies. METHODS Responses were defined as hepatitis B surface antigen (HBsAg) loss and/or hepatitis B e antigen (HBeAg) seroconversion plus hepatitis B virus (HBV) DNA <2000 IU/ml in HBeAg-positive patients, and HBsAg loss and/or HBV DNA <2000 IU/ml in HBeAg-negative patients (24 weeks after end of treatment). Associations between treatment response and the number of copies of the poor-response allele at three SNPs (rs8099917, rs12980275, rs12979860) were explored with logistic regression models in Asian and white patients. RESULTS The HBeAg-positive and -negative populations comprised 465 (92% Asian, 50% HBV genotype C) and 236 (79% Asian, 41% HBV genotype C) patients, respectively, and had respective response rates of 26% and 47%. The IFNL3 genotype was strongly associated with ethnicity. There was no association between IFNL3 genotype and treatment response in HBeAg-positive or -negative patients. Independent predictors of treatment response were: sex, HBV DNA level and alanine aminotransferase level in HBeAg-positive Asian patients; age in HBeAg-negative Asian patients; and HBV DNA in HBeAg-negative white patients. CONCLUSIONS This is the largest analysis to date of associations between IFNL3 genotype and peginterferon response in patients with chronic hepatitis B. The data suggest that IFNL3 polymorphism is not a major determinant of the response to peginterferon alfa-2a in either HBeAg-positive or HBeAg-negative patients.
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Affiliation(s)
- Lai Wei
- Peking University People’s Hospital, Peking University Hepatology Institute, Beijing, China
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Yun-Fan Liaw
- Liver Research Unit, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Henry Lik-Yuen Chan
- Department of Medicine and Therapeutics, Institute of Digestive Disease and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Teerha Piratvisuth
- NKC Institute of Gastroenterology and Hepatology, Prince of Songkla University, Songklanagarind Hospital, Songkhla, Thailand
| | - Patrick Marcellin
- Service d’Hépatologie and INSERM CRB3/U773, Université Paris-Diderot, Clichy, France
| | - Jidong Jia
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Deming Tan
- Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Wan-Cheng Chow
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Singapore, Singapore
| | | | | | - Selim Gurel
- Department of Gastroenterology, Medical Faculty, Uludag University, Bursa, Turkey
| | | | - Hua He
- Roche Products Ltd, Welwyn, United Kingdom
| | - Yonghong Zhu
- Genentech Inc., San Francisco, California, United States of America
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Elbasvir/grazoprevir in black adults with hepatitis C virus infection: a pooled analysis of phase 2/3 clinical trials. Am J Gastroenterol 2018; 113:863-871. [PMID: 29695828 DOI: 10.1038/s41395-018-0053-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 02/20/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Although direct-acting antiviral regimens have dramatically improved the treatment of hepatitis C virus (HCV) infection, there is some evidence that black race may be an independent predictor of treatment failure. We report a retrospective analysis of black participants receiving elbasvir/grazoprevir (EBR/GZR) in nine phase 2/3 clinical trials. METHODS Black participants with chronic HCV genotype 1 or 4 (GT1 or GT4) infection who received EBR 50 mg/GZR 100 mg once daily for 12 weeks, or in combination with ribavirin for 16 weeks, were included. The primary end point was sustained virologic response 12 weeks after completion of therapy (SVR12, HCV RNA < 15 IU/mL). RESULTS Compared with nonblack participants (n = 1310), black participants (n = 332) were more likely to have chronic kidney disease stage 4/5 (9.2% vs. 31.0%, respectively), while other comorbidities were similar between the groups. In black and nonblack participants receiving EBR/GZR for 12 weeks, SVR12 rates were 93.7% (282/301) and 94.2% (1072/1138) in those with GT1 infection, and 93.8% (15/16) and 94.6% (88/93) in those with GT4 infection. SVR12 was 100.0% (15/15) in black participants and 97.5% (77/79) in nonblack participants with GT1 infection receiving EBR/GZR plus ribavirin for 16 weeks. Rates of drug-related adverse events (AEs) were 30% vs. 36.6%, and serious AEs were 7.6% vs. 3.4% in black and nonblack participants, respectively. CONCLUSION EBR/GZR showed high efficacy in black participants with HCV GT1 or GT4 infection and was generally well tolerated, with a safety profile similar to that reported overall in phase 2/3 clinical trials.
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Marcus JL, Hurley LB, Chamberland S, Champsi JH, Gittleman LC, Korn DG, Lai JB, Lam JO, Pauly MP, Quesenberry CP, Ready J, Saxena V, Seo SI, Witt DJ, Silverberg MJ. Disparities in Initiation of Direct-Acting Antiviral Agents for Hepatitis C Virus Infection in an Insured Population. Public Health Rep 2018; 133:452-460. [PMID: 29750893 PMCID: PMC6055302 DOI: 10.1177/0033354918772059] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES The cost of direct-acting antiviral agents (DAAs) for hepatitis C virus (HCV) infection may contribute to treatment disparities. However, few data exist on factors associated with DAA initiation. METHODS We conducted a retrospective cohort study of HCV-infected Kaiser Permanente Northern California members aged ≥18 during October 2014 to December 2016, using Poisson regression models to evaluate demographic, behavioral, and clinical factors associated with DAA initiation. RESULTS Of 14 790 HCV-infected patients aged ≥18 (median age, 60; interquartile range, 53-64), 6148 (42%) initiated DAAs. DAA initiation was less likely among patients who were non-Hispanic black (adjusted rate ratio [aRR] = 0.7; 95% confidence interval [CI], 0.7-0.8), Hispanic (aRR = 0.8; 95% CI, 0.7-0.9), and of other minority races/ethnicities (aRR = 0.9; 95% CI, 0.8-1.0) than among non-Hispanic white people and among those with lowest compared with highest neighborhood deprivation index (ie, a marker of socioeconomic status) (aRR = 0.8; 95% CI, 0.7-0.8). Having maximum annual out-of-pocket health care costs >$3000 compared with ≤$3000 (aRR = 0.9; 95% CI, 0.8-0.9) and having Medicare (aRR = 0.8; 95% CI, 0.8-0.9) or Medicaid (aRR = 0.7; 95% CI, 0.6-0.8) compared with private health insurance were associated with a lower likelihood of DAA initiation. Behavioral factors (eg, drug abuse diagnoses, alcohol use, and smoking) were also significantly associated with a lower likelihood of DAA initiation (all P < .001). Clinical factors associated with a higher likelihood of DAA initiation were advanced liver fibrosis, HCV genotype 1, previous HCV treatment (all P < .001), and HIV infection ( P = .007). CONCLUSIONS Racial/ethnic and socioeconomic disparities exist in DAA initiation. Substance use may also influence patient or provider decision making about DAA initiation. Strategies are needed to ensure equitable access to DAAs, even in insured populations.
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Affiliation(s)
- Julia L. Marcus
- Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Leo B. Hurley
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Scott Chamberland
- Regional Pharmacy, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Jamila H. Champsi
- Kaiser Permanente South San Francisco Medical Center, South San Francisco, CA, USA
| | - Laura C. Gittleman
- Medical Group Support Services, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Daniel G. Korn
- Kaiser Permanente Oakland Medical Center, Oakland, CA, USA
| | - Jennifer B. Lai
- Kaiser Permanente San Rafael Medical Center, San Rafael, CA, USA
| | - Jennifer O. Lam
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Mary Pat Pauly
- Kaiser Permanente Sacramento Medical Center, Sacramento, CA, USA
| | | | - Joanna Ready
- Kaiser Permanente Santa Clara Medical Center, Santa Clara, CA, USA
| | - Varun Saxena
- Kaiser Permanente South San Francisco Medical Center, South San Francisco, CA, USA
| | - Suk I. Seo
- Kaiser Permanente Antioch Medical Center, Antioch, CA, USA
- Kaiser Permanente Walnut Creek Medical Center, Walnut Creek, CA, USA
| | - David J. Witt
- Kaiser Permanente San Rafael Medical Center, San Rafael, CA, USA
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Wilder JM, Muir A. Direct acting antivirals for the treatment of hepatitis C in ethnic minority populations. Expert Opin Pharmacother 2018; 19:451-456. [PMID: 29488438 DOI: 10.1080/14656566.2018.1446945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Direct acting antivirals (DAA's) have revolutionized the treatment of hepatitis C (HCV). However, questions persist concerning their efficacy in minority populations. AREAS COVERED In this review, the authors review outcomes for treatment of HCV by race and ethnicity among the clinical trials that have led to the current recommended treatments for HCV. The authors highlight the efficacy and safety differences by race and ethnicity. They also highlight deficiencies within the literature including small populations of racial/ethnic minorities within HCV clinical trials. DAA's can achieve cure rates for HCV over 95% with the use of once daily medications that have minimal side effects and few significant drug-drug interactions. Regimens with high pan-genotypic efficacy have further simplified treatment paradigms. The purpose of this review is to describe the data on DAA's in treating HCV in racial/ethnic populations. EXPERT OPINION While the overall data in racial/ethnic minority populations is sparse, DAA's appear to have high efficacy in curing HCV in diverse racial/ethnic populations. Although achieving high sustained virologic response (SVR) rates, there are also data that suggests that some disparities in SVR persist, especially when considering shorter regimens for HCV treatment in racial/ethnic populations.
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Affiliation(s)
- Julius M Wilder
- a Duke School of Medicine , Duke University , Durham , NC , USA.,b Duke Clinical Research Institute, Duke University , Durham , NC , USA
| | - Andrew Muir
- a Duke School of Medicine , Duke University , Durham , NC , USA.,b Duke Clinical Research Institute, Duke University , Durham , NC , USA
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17
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Dultz G, Graubard BI, Martin P, Welker MW, Vermehren J, Zeuzem S, McGlynn KA, Welzel TM. Liver transplantation for chronic hepatitis C virus infection in the United States 2002-2014: An analysis of the UNOS/OPTN registry. PLoS One 2017; 12:e0186898. [PMID: 29088255 PMCID: PMC5663425 DOI: 10.1371/journal.pone.0186898] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 09/20/2017] [Indexed: 12/19/2022] Open
Abstract
Chronic hepatitis C virus (HCV) infection is a leading cause for orthotopic liver transplantation (OLT) in the U.S. We investigated characteristics of HCV-infected patients registered for OLT, and explored factors associated with mortality. Data were obtained from the United Network for Organ Sharing and Organ Procurement and Transplantation network (UNOS/OPTN) registry. Analyses included 41,157 HCV-mono-infected patients ≥18 years of age listed for cadaveric OLT between February 2002 and June 2014. Characteristics associated with pre- and post-transplant survival and time trends over the study period were determined by logistic and Cox proportional hazard regression analyses and Poisson regressions. Most patients were white (69.1%) and male (70.8%). At waitlist registration, mean age was 54.6 years and mean MELD was 16. HCC was recorded in 26.9% of the records. A total of 51.2% of the patients received an OLT, 21.0% died or were too sick; 15.6% were delisted and 10.4% were still waiting. Factors associated with increased waitlist mortality were older age, female gender, blood type 0, diabetes, no HCC and transplant region (p<0.001). OLT recipient characteristics associated with increased risk for post OLT mortality were female gender, age, diabetes, race (p<0,0001), and allocation MELD (p = 0.005). Donor characteristics associated with waitlist mortality included age, ethnicity (p<0.0001) and diabetes (p<0.03). Waitlist registrations and OLTs for HCC significantly increased from 14.4% to 37.3% and 27.8% to 38.5%, respectively (p<0.0001). Pre- and post-transplant survival depended on a variety of patient-, donor-, and allocation- characteristics of which most remain relevant in the DAA-era. Still, intensified HCV screening strategies and timely and effective treatment of HCV are highly relevant to reduce the burden of HCV-related OLTs in the U.S.
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Affiliation(s)
- Georg Dultz
- University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Barry I. Graubard
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, United States of America
| | - Paul Martin
- Hepatology Division, University of Miami, Miami, FL, United States of America
| | | | | | - Stefan Zeuzem
- University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Katherine A. McGlynn
- HREB, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, United States of America
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18
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Brown AN, Liu L, Rodriquez JL, Zhao L, Schuster L, Li E, Wang GP, Neely MN, Yamada W, Drusano GL. Sofosbuvir (SOF) Suppresses Ledipasvir (LDV)-resistant Mutants during SOF/LDV Combination Therapy against Genotype 1b Hepatitis C Virus (HCV). Sci Rep 2017; 7:14421. [PMID: 29089577 PMCID: PMC5663921 DOI: 10.1038/s41598-017-15007-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/20/2017] [Indexed: 12/17/2022] Open
Abstract
Our objective was to identify drug interactions between ledipasvir (LDV) and sofosbuvir (SOF) against a genotype 1b replicon to determine optimal exposures for each agent that will maximize antiviral activity against susceptible and drug-resistant subpopulations. LDV and SOF were evaluated using a fully factorial experimental design in the BelloCell system. Replicon levels and drug-resistant variants were quantified at various times post-therapy for 14 days and a high-dimensional mathematical model was fit to the data. Mutations associated with SOF resistance were not detected; but LDV-resistant mutants were selected and mutant subpopulations increased as exposure intensity increased. Combination therapy was additive for the total replicon population and the LDV-resistant population, but a threshold concentration of 100 ng/ml of SOF must be attained to suppress LDV-resistant subpopulations. These novel findings hold important implications for not only improving therapeutic outcomes, but also maximizing the clinical utility of LDV and SOF combination regimens.
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Affiliation(s)
- Ashley N Brown
- Institute For Therapeutic Innovation, Department of Medicine, University of Florida, 6550 Sanger Road, Orlando, FL, 32827, United States.
| | - Lin Liu
- Infectious Diseases and Global Medicine, University of Florida, Gainesville, FL, United States
| | - Jaime L Rodriquez
- Institute For Therapeutic Innovation, Department of Medicine, University of Florida, 6550 Sanger Road, Orlando, FL, 32827, United States
| | - Lisa Zhao
- Infectious Diseases and Global Medicine, University of Florida, Gainesville, FL, United States
| | - Layla Schuster
- Infectious Diseases and Global Medicine, University of Florida, Gainesville, FL, United States
| | - Eric Li
- Infectious Diseases and Global Medicine, University of Florida, Gainesville, FL, United States
| | - Gary P Wang
- Infectious Diseases and Global Medicine, University of Florida, Gainesville, FL, United States.,Medical Service, North Florida/South Georgia Veterans Health System, Gainesville, FL, United States
| | - Michael N Neely
- Laboratory of Applied Pharmacokinetics and Bioinformatics (LAPKB), Children's Hospital Los Angeles Saban Research Institute, Los Angeles, CA, United States
| | - Walter Yamada
- Laboratory of Applied Pharmacokinetics and Bioinformatics (LAPKB), Children's Hospital Los Angeles Saban Research Institute, Los Angeles, CA, United States
| | - George L Drusano
- Institute For Therapeutic Innovation, Department of Medicine, University of Florida, 6550 Sanger Road, Orlando, FL, 32827, United States
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Neesgaard B, Ruhwald M, Weis N. Inducible protein-10 as a predictive marker of antiviral hepatitis C treatment: A systematic review. World J Hepatol 2017; 9:677-688. [PMID: 28588752 PMCID: PMC5437612 DOI: 10.4254/wjh.v9.i14.677] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 12/30/2016] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate interferon-γ-inducible protein-10’s (IP-10) potential to anticipate rapid (RVR)- and sustained virological responses (SVR) to chronic hepatitis C (CHC) treatment.
METHODS We included case series examining RVR or SVR in relation to 24 or 48 wk treatment for CHC, in patients treatment free for at least six months, with genotype 1 or 4, and in relation to 24 wk treatment for genotype 2 and 3, with pegylated interferon in combination with ribavirin. Patients had to have both a baseline IP-10 level as well as a hepatitis C virus (HCV)-RNA determination 4 wk after treatment initiation or 24 wk after end of treatment. Studies including patients with liver diseases other than CHC, human immunodeficiency virus-infection, treatment with immunosuppresents or cytostatica, alcohol dependency or active intravenous drug-use were excluded. We found 81 articles by searching the MEDLINE and EMBASE databases. Eight studies were eligible for inclusion. Their quality were assesed using an 18 point checklist for case series, developed using a modified Delphi technique. Information was extracted from the articles, and no raw data was requisitioned. The review protocol was registered at the International Prospective Register of Systematic Reviews (reg. number: CRD42014008736).
RESULTS Three studies reported on baseline IP-10 level in association with RVR. A signigficant association was found for HCV genotype 1 infection by two studies. Only two studies reported on HCV genotype 4 infected and genotype 2 and 3 infected patients, respectively. A trend was seen for an association between RVR and baseline IP-10 for genotype 4, while no association was found for genotype 2 and 3. Seven studies provided information regarding baseline IP-10 and SVR. Following the pattern regarding rapid virological response all five studies examining SVR in relation to baseline IP-10 levels for HCV, genotype 1 infected patients showed a significant association. Likewise a significant association was seen for HCV, genotype 4 infected, while no association was found for HCV, genotype 2 and 3 infected. Though only two studies examined the assosiation for HCV genotype 4 infected and HCV genotype 2 and 3 infected respectively.
CONCLUSION We found indications of a possible association between baseline IP-10 level and virological responses in patients with CHC genotype 1 and 4.
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20
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Burstow NJ, Mohamed Z, Gomaa AI, Sonderup MW, Cook NA, Waked I, Spearman CW, Taylor-Robinson SD. Hepatitis C treatment: where are we now? Int J Gen Med 2017; 10:39-52. [PMID: 28255252 PMCID: PMC5322849 DOI: 10.2147/ijgm.s127689] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Chronic hepatitis C infection affects millions of people worldwide and confers significant morbidity and mortality. Effective treatment is needed to prevent disease progression and associated complications. Previous treatment options were limited to interferon and ribavirin (RBV) regimens, which gave low cure rates and were associated with unpleasant side effects. The era of direct-acting antiviral (DAA) therapies began with the development of first-generation NS3/4A protease inhibitors in 2011. They vastly improved outcomes for patients, particularly those with genotype 1 infection, the most prevalent genotype globally. Since then, a multitude of DAAs have been licensed for use, and outcomes for patients have improved further, with fewer side effects and cure rates approaching 100%. Recent regimens are interferon-free, and in many cases, RBV-free, and involve a combination of DAA agents. This review summarizes the treatment options currently available and discusses potential barriers that may delay the global eradication of hepatitis C.
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Affiliation(s)
- Nicholas J Burstow
- Liver Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Zameer Mohamed
- Liver Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Asmaa I Gomaa
- National Liver Institute, Menoufiya University, Shbeen El Kom, Egypt
| | - Mark W Sonderup
- Division of Hepatology, Department of Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, Cape Town, Republic of South Africa
| | - Nicola A Cook
- Liver Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Imam Waked
- National Liver Institute, Menoufiya University, Shbeen El Kom, Egypt
| | - C Wendy Spearman
- Division of Hepatology, Department of Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, Cape Town, Republic of South Africa
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21
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Su F, Green PK, Berry K, Ioannou GN. The association between race/ethnicity and the effectiveness of direct antiviral agents for hepatitis C virus infection. Hepatology 2017; 65:426-438. [PMID: 27775854 PMCID: PMC6535089 DOI: 10.1002/hep.28901] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 09/28/2016] [Accepted: 10/12/2016] [Indexed: 12/14/2022]
Abstract
Black race and Hispanic ethnicity were associated with lower rates of sustained virologic response (SVR) to interferon-based treatments for chronic hepatitis C virus infection, whereas Asian race was associated with higher SVR rates compared to white patients. We aimed to describe the association between race/ethnicity and effectiveness of new direct-acting antiviral regimens in the Veterans Affairs health care system nationally. We identified 21,095 hepatitis C virus-infected patients (11,029 [52%] white, 6,171 [29%] black, 1,187 [6%] Hispanic, 348 [2%] Asian/Pacific Islander/American Indian/Alaska Native, and 2,360 [11%] declined/missing race or ethnicity) who initiated antiviral treatment with regimens containing sofosbuvir, simeprevir + sofosbuvir, ledipasvir/sofosbuvir, or paritaprevir/ombitasvir/ritonavir/dasabuvir during the 18-month period from January 1, 2014, to June 30, 2015. Overall SVR rates were 89.8% (95% confidence interval [CI] 89.2-90.4) in white, 89.8% (95% CI 89.0-90.6) in black, 86.0% (95% CI 83.7-88.0) in Hispanic, and 90.7% (95% CI 87.0-93.5) in Asian/Pacific Islander/American Indian/Alaska Native patients. However, after adjustment for baseline characteristics, black (adjusted odds ratio = 0.77, P < 0.001) and Hispanic (adjusted odds ratio = 0.76, P = 0.007) patients were less likely to achieve SVR than white patients, a difference that was not explained by early treatment discontinuations. Among genotype 1-infected patients treated with ledipasvir/sofosbuvir monotherapy, black patients had significantly lower SVR than white patients when treated for 8 weeks but not when treated for 12 weeks. CONCLUSION Direct-acting antivirals produce high SVR rates in white, black, Hispanic, and Asian/Pacific Islander/American Indian/Alaska Native patients; but after adjusting for baseline characteristics, black race and Hispanic ethnicity remain independent predictors of treatment failure. Short 8-week ledipasvir/sofosbuvir monotherapy regimens should perhaps be avoided in black patients with genotype 1 hepatitis C virus. (Hepatology 2017;65:426-438).
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Affiliation(s)
- Feng Su
- Division of Gastroenterology/Medicine, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, WA
| | - Pamela K Green
- Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, WA
| | - Kristin Berry
- Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, WA
| | - George N Ioannou
- Division of Gastroenterology/Medicine, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, WA
- Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, WA
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22
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Naggie S, Muir AJ. Oral Combination Therapies for Hepatitis C Virus Infection: Successes, Challenges, and Unmet Needs. Annu Rev Med 2017; 68:345-358. [PMID: 27686017 DOI: 10.1146/annurev-med-052915-015720] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The current standard of care for the treatment of hepatitis C virus (HCV) consists of interferon-free direct-acting antiviral (DAA) regimens, including combinations of DAAs and fixed-dose combination pills. DAAs for HCV are likely to be heralded as one of medicine's greatest advancements. Viral eradication rates are pushing 100% for many HCV-infected populations, including patients with HIV/HCV coinfection, decompensated cirrhosis, liver and kidney transplants, and end-stage liver disease. We highlight the greatest successes of combination DAA therapies, discuss the ongoing challenges, and identify the remaining patient subgroups with unmet medical needs.
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Affiliation(s)
- Susanna Naggie
- Duke University School of Medicine and Duke Clinical Research Institute, Durham, North Carolina 27715;
| | - Andrew J Muir
- Duke University School of Medicine and Duke Clinical Research Institute, Durham, North Carolina 27715;
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Mangia A, De Ledinghen V, Bailly F, Brahm J, Keiss J, Valantinas J, Rasmann N, Messinger D, Tatsch F, Bakalos G, Foster GR. IL28B genotype is associated with cirrhosis or transition to cirrhosis in treatment-naive patients with chronic HCV genotype 1 infection: the international observational Gen-C study. SPRINGERPLUS 2016; 5:1990. [PMID: 27917361 PMCID: PMC5116020 DOI: 10.1186/s40064-016-3663-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 11/07/2016] [Indexed: 02/07/2023]
Abstract
Background and purpose Contradictory data exist on the association between host interleukin-28B (IL28B) rs12979860 genotype and liver fibrosis in patients with chronic hepatitis C (CHC). This large, international, observational study (NCT01675427/MV25600) investigated relationships between IL28B rs12979860 genotype and liver fibrosis stage in CHC patients. Methods A total of 3003 adult, treatment-naive CHC patients were enrolled into the study. Patients made one study visit to provide a blood sample for genotyping; other data were obtained from medical records. Results 2916 patients comprised the analysis population; the majority were enrolled in Europe (n = 2119), were Caucasian (n = 2582) and had hepatitis C virus (HCV) genotype (G)1 infection (n = 1702) (G2 = 323, G3 = 574, G4 = 260). Distribution of IL28B genotypes varied according to region of enrolment, patient ethnicity and HCV genotype. A significant association was observed between increasing number of IL28B T alleles and the prevalence of cirrhosis/transition to cirrhosis (based on biopsy or non-invasive assessments) in G1-infected patients (CC = 22.2% [111/499], CT = 27.5% [255/928], TT = 32.3% [87/269]; p = 0.0018). The association was significant in the large subgroup of European Caucasian G1 patients (n = 1245) but not in the smaller Asian (n = 25), Latin American (n = 137) or Middle Eastern (n = 289) G1 subgroups. IL28B genotype was not associated with liver fibrosis stage in patients with HCV G2, G3 or G4 infection. Conclusion This large, international study found that IL28B rs12979860 genotype is significantly associated with liver fibrosis stage in CHC patients with HCV G1 infection. This association was evident in European Caucasians but not in G1-infected patients from Asia, Latin America or the Middle East. Electronic supplementary material The online version of this article (doi:10.1186/s40064-016-3663-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alessandra Mangia
- Liver Unit, IRCCS Hospital 'Casa Sollievo della Sofferenza', San Giovanni Rotondo, 71013 Italy
| | | | - François Bailly
- Hepatology Unit, Groupe Hospitalier Nord, CHU Lyon, 69004 Lyon, France
| | - Javier Brahm
- Gastroenterology Department, University of Chile Clinical Hospital, Santiago, 8380456 Chile
| | - Jazeps Keiss
- Latvian Centre of Infectious Diseases, LLC Riga East University Hospital, Riga, 1006 Latvia
| | - Jonas Valantinas
- Centre of Hepatology, Gastroenterology and Dietetics, Vilnius University, 08661 Vilnius, Lithuania
| | - Nele Rasmann
- Center for Infectious Diseases, West Tallinn Central Hospital, 10617 Tallinn, Estonia
| | | | - Fernando Tatsch
- Global Medical Affairs, F. Hoffmann-La Roche Ltd, 4074 Basel, Switzerland ; AbbVie, North Chicago, IL USA
| | - Georgios Bakalos
- Global Product Development Medical Affairs, F. Hoffmann-La Roche Ltd, 4074 Basel, Switzerland
| | - Graham R Foster
- Institute of Cellular and Molecular Sciences, Queen Mary University of London, London, E1 2AT UK
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Asselah T, Esmat G, Sanai FM, Goulis I, Messinger D, Bakalos G, Waked I. Simple Predictive Model for Identifying Patients with Chronic Hepatitis C and Hepatitis C Virus Genotype 4 Infection with a High Probability of Sustained Virologic Response with Peginterferon Alfa-2a/Ribavirin: Pooled Analysis of Data from Two Large, International Cohort Studies. Adv Ther 2016; 33:1797-1813. [PMID: 27517563 DOI: 10.1007/s12325-016-0396-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Wherever access to direct-acting antiviral agents is restricted, dual peginterferon/ribavirin (PegIFN/RBV) therapy remains an option for treatment of hepatitis C virus (HCV) genotype 4 (GT4) infection, which predominates in the Middle East and Sub-Saharan Africa. Our goal was to develop a baseline scoring system to identify GT4-infected patients with a low or high probability of achieving a sustained virologic response (SVR) with PegIFN alfa-2a/RBV using data from two large cohort studies. METHODS Associations between baseline characteristics and SVR were explored by generalized additive models and multiple logistic regression analysis to develop a predictive model, which was then checked by bootstrapping. The score comprised four factors with points assigned thus: age ≤40, 3 points; >40 but ≤55, 2 points; alanine aminotransferase ≤1 or >3× the upper limit of normal, 1 point; no cirrhosis, 1 point; HCV RNA <50,000 IU/mL, 2 points; 50,000 to <400,000 IU/mL, 1 point. The values for a given patient are summed to produce a score from 0 to 7 where higher scores indicate higher chances of SVR. RESULTS Among the 459 patients, 28 (6%), 50 (11%), 92 (20%), 121 (26%), 103 (22%), and 65 (14%) patients had scores of 0-1, 2, 3, 4, 5, and 6-7, respectively, with respective SVR rates of 11%, 28%, 50%, 57%, 63%, and 83%. Relapse rates decreased with increasing prediction score (80%, 39%, 15%, 19%, 5%, and 7%, respectively). SVR rates were consistently higher in Caucasian than Black patients and in patients with a rapid virologic response HCV RNA <50 IU/mL at week 4); however, the trend toward higher SVR rates with increasing score remained apparent in each subgroup. CONCLUSION In conclusion, a simple scoring system can be used to identify GT4-infected patients with a high probability of achieving an SVR with PegIFN alfa-2a/RBV. FUNDING F. Hoffmann-La Roche Ltd.
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Affiliation(s)
- Tarik Asselah
- Centre de Recherche sur l'Inflammation (CRI), INSERM UMR 1149, Service d'Hépatologie, Université Paris Diderot, AP-HP Hôpital Beaujon, Clichy, 100 Bd du Général Leclerc, 92110, Clichy, France.
| | - Gamal Esmat
- Endemic Medicine Department, Cairo University, Cairo, Egypt
| | - Faisal M Sanai
- Liver Disease Research Center, King Saud University, Riyadh, Saudi Arabia
- Gastroenterology Unit, Department of Medicine, King Abdulaziz Medical City, Jeddah, Saudi Arabia
| | - Ioannis Goulis
- 4th Department of Internal Medicine, Hippokration General Hospital, Αristotle University of Thessaloniki Medical School, Thessaloniki, Greece
| | | | | | - Imam Waked
- National Liver Institute, Shebeen El Kom, Egypt
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FakhriRavari A, Malakouti M, Brady R. Interferon-Free Treatments for Chronic Hepatitis C Genotype 1 Infection. J Clin Transl Hepatol 2016; 4:97-112. [PMID: 27350940 PMCID: PMC4913075 DOI: 10.14218/jcth.2016.00007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 03/22/2016] [Accepted: 03/27/2016] [Indexed: 12/19/2022] Open
Abstract
Hepatitis C virus (HCV) infection affects as many as 185 million people globally, many of whom are chronically infected and progress over time to cirrhosis, decompensated liver disease, hepatocellular carcinoma, and eventually death without a liver transplant. In the United States, HCV genotype 1 constitutes about 75% of all infections. While interferon and ribavirin therapy was the cornerstone of treatment for many years, interferon-free treatments have become the standard of care with the emergence of new direct-acting agents, resulting in more effective treatment, shorter duration of therapy, better tolerability, lower pill burden, and ultimately better adherence. This review will summarize the evidence for the currently available combination therapies as well as emerging therapies in phase 3 trials for treatment of HCV genotype 1.
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Affiliation(s)
- Alireza FakhriRavari
- Department of Pharmacy Practice, University of the Incarnate Word Feik School of Pharmacy, San Antonio, Texas, USA
- *Correspondence to: Alireza FakhriRavari, Department of Pharmacy Practice, University of the Incarnate Word Feik School of Pharmacy, 4301 Broadway CPO 99, San Antonio, Texas 78209, USA. Tel: +1-210-883-1142, Fax: +1-210-822-1516, E-mail:
| | - Mazyar Malakouti
- University of Texas Health Science Center, San Antonio, Texas, USA
| | - Rebecca Brady
- Department of Pharmacy Practice, University of the Incarnate Word Feik School of Pharmacy, San Antonio, Texas, USA
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Abdel-Wahab R, Shehata S, Hassan MM, Xiao L, Lee JS, Cheung S, Essa HH, Hassabo HM, Shalaby AS, Mosad E, Raghav K, Rashid A, Wolff RA, Morris JS, Amin HM, Kaseb AO. Validation of an IGF-CTP scoring system for assessing hepatic reserve in Egyptian patients with hepatocellular carcinoma. Oncotarget 2016; 6:21193-207. [PMID: 26098859 PMCID: PMC4673259 DOI: 10.18632/oncotarget.4176] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/01/2015] [Indexed: 12/14/2022] Open
Abstract
Background The Child-Turcotte-Pugh score (CTP) is the standard tool for hepatic reserve assessment in hepatocellular carcinoma (HCC). Recently, we reported that integrating plasma insulin-like growth factor-1 (IGF-1) level into the CTP score was associated with better patient risk stratification in two U.S. independent cohorts. Our current study aimed to validate the IGF-CTP score in patients who have different demographics and risk factors. Patients and Methods We prospectively recruited 100 Egyptian patients and calculated their IGF-CTP score compared to CTP score. C-index was used to compare the prognostic significance of the two scoring systems. Finally, we compared our results with our U.S. cohorts published data. Results IGF-CTP score showed significant better patient stratification compared to CTP score in the international validation cohort. Among CTP class A patients, who usually considered for active treatment and clinical trial enrollment, 32.5% were reclassified as IGF-CTP class B with significantly shorter OS than patients reclassified as class A with hazard ratio [HR] = 6.15, 95% confidence interval [CI] = 2.18-17.37. Conclusion IGF-CTP score showed significantly better patient stratification and survival prediction not only in the U.S. population but also in international validation population, who had different demographics and HCC risk factors.
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Affiliation(s)
- Reham Abdel-Wahab
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Clinical Oncology, Assiut University, Assiut, Egypt
| | - Samir Shehata
- Department of Clinical Oncology, Assiut University, Assiut, Egypt
| | - Manal M Hassan
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Lianchun Xiao
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sheree Cheung
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hoda H Essa
- Department of Clinical Oncology, Assiut University, Assiut, Egypt
| | - Hesham M Hassabo
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ahmed S Shalaby
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Eman Mosad
- Department of Pathology, Assiut University, Assiut, Egypt
| | - Kanwal Raghav
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Asif Rashid
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert A Wolff
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jeffrey S Morris
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hesham M Amin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Graduate School of Biomedical Sciences, University of Texas, Houston, Texas, USA
| | - Ahmed O Kaseb
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Dai CY. Insulin resistance and anti-hepatitis C virus therapy. ADVANCES IN DIGESTIVE MEDICINE 2016. [DOI: 10.1016/j.aidm.2016.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Helal GK, Gad MA, Abd-Ellah MF, Eid MS. Hydroxychloroquine augments early virological response to pegylated interferon plus ribavirin in genotype-4 chronic hepatitis C patients. J Med Virol 2016; 88:2170-2178. [PMID: 27183377 PMCID: PMC7167065 DOI: 10.1002/jmv.24575] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2016] [Indexed: 12/19/2022]
Abstract
The therapeutic effect of pegylated interferon (peg-IFN) alfa-2a combined with ribavirin (RBV) on chronic hepatitis C Egyptian patients is low and further efforts are required to optimize this therapy for achievement of higher rates of virological response. This study aimed to evaluate the safety and efficacy of hydroxychloroquine (HCQ) in combination with pegylated interferon plus ribavirin on early virological response (EVR) in chronic hepatitis C Egyptian patients. Naïve 120 Egyptian patients with chronic hepatitis C virus infection were divided into two groups. Group 1 have administered the standard of care therapy (pegylated interferon alfa-2a plus ribavirin) for 12 weeks, (n = 60). Group 2 have administered hydroxychloroquine plus standard of care therapy for 12 weeks, (n = 60). Therapeutics included hydroxychloroquine (200 mg) oral twice daily, peginterferon alfa-2a (160 μg) subcutaneous once weekly and oral weight-based ribavirin (1000-1200 mg/day). Baseline characteristics were similar in the two groups. The percentage of early virological response was significantly more in patients given the triple therapy than in patients given the standard of care [54/60 (90%) vs. 43/60 (71.7%); P = 0.011; respectively]. Biochemical response at week 12 was also significantly higher in patients given the triple therapy compared with the standard of care [58/60 (96.7%) vs. 42/60 (70%); P < 0.001; respectively]. Along the study, the observed adverse events were mild and similar across treatment groups. Addition of hydroxychloroquine to pegylated interferon plus ribavirin improves the rate of early virological and biochemical responses in chronic hepatitis C Egyptian patients without an increase in adverse events. J. Med. Virol. 88:2170-2178, 2016. © 2016 Wiley Periodicals, Inc.
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Lim YS, Ahn SH, Lee KS, Paik SW, Lee YJ, Jeong SH, Kim JH, Yoon SK, Yim HJ, Tak WY, Han SY, Yang JC, Mo H, Garrison KL, Gao B, Knox SJ, Pang PS, Kim YJ, Byun KS, Kim YS, Heo J, Han KH. A phase IIIb study of ledipasvir/sofosbuvir fixed-dose combination tablet in treatment-naïve and treatment-experienced Korean patients chronically infected with genotype 1 hepatitis C virus. Hepatol Int 2016; 10:947-955. [PMID: 27198664 DOI: 10.1007/s12072-016-9726-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/16/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND The standard-of-care regimen for chronic hepatitis C virus (HCV) infection in Korea, pegylated-interferon-alpha plus ribavirin, is poorly tolerated. Ledipasvir/sofosbuvir is a two-drug, fixed-dose combination tablet approved in the USA, European Union, and Japan for chronic genotype 1 HCV infection. METHODS This single-arm, phase IIIb study (NCT02021656) investigated the efficacy and safety of ledipasvir/sofosbuvir fixed-dose combination tablet for 12 weeks in treatment-naïve and treatment-experienced Korean patients chronically infected with genotype 1 HCV with or without compensated cirrhosis. RESULTS The proportion of patients with sustained virologic response 12 weeks after treatment discontinuation (SVR12) was 99 % (92/93), with rates of 100 % (46/46) and 98 % (46/47) in treatment-naïve and treatment-experienced patients, respectively. There were no on-treatment failures. One patient relapsed after the end of treatment. The most common treatment-emergent adverse events were headache (8 %, 7/93) and fatigue (6 %, 6/93). There were no grade 3 or 4 adverse events, seven grade 3 laboratory abnormalities, and one premature discontinuation of study treatment (due to nonserious mouth ulceration). None of the three reported serious adverse events were related to treatment. CONCLUSIONS These data suggest that 12 weeks of ledipasvir/sofosbuvir is effective and well tolerated in treatment-naïve and treatment-experienced Korean patients with chronic genotype 1 HCV infection.
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Affiliation(s)
- Young-Suk Lim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, South Korea
| | - Kwan Sik Lee
- Department of Gastroenterology and Hepatology, Gangnam Severance Hospital, Yonsei University Health System, Seoul, South Korea
| | - Seung Woon Paik
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Youn-Jae Lee
- Department of Infectious Diseases, Gastroenterology, and Hepatology, Inje University, Pusan Paik Hospital, Busan, South Korea
| | - Sook-Hyang Jeong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Ju-Hyun Kim
- Department of Internal Medicine, Gachon University Gil Hospital, Incheon, South Korea
| | - Seung Kew Yoon
- Department of Gastroenterology, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, South Korea
| | - Hyung Joon Yim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, Gyeonggi-do, South Korea
| | - Won Young Tak
- Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Sang-Young Han
- Department of Internal Medicine, Dong-A University Medical Center, Busan, South Korea
| | | | - Hongmei Mo
- Gilead Sciences, Inc, Foster City, CA, USA
| | | | - Bing Gao
- Gilead Sciences, Inc, Foster City, CA, USA
| | | | | | - Yoon Jun Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine and Liver Research Institute, Seoul, South Korea
| | - Kwan-Soo Byun
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, South Korea
| | - Young Seok Kim
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea
| | - Jeong Heo
- Department of Internal Medicine, Pusan National University and Medical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Kwang-Hyub Han
- Department of Internal Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, South Korea.
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Ahn SH, Lim YS, Lee KS, Paik SW, Lee YJ, Jeong SH, Kim JH, Yoon SK, Yim HJ, Tak WY, Han SY, Yang JC, Mo H, Mathias A, Han L, Knox SJ, Brainard DM, Kim YJ, Byun KS, Kim YS, Heo J, Han KH. A phase 3b study of sofosbuvir plus ribavirin in treatment-naive and treatment-experienced Korean patients chronically infected with genotype 2 hepatitis C virus. J Viral Hepat 2016; 23:358-65. [PMID: 26864153 DOI: 10.1111/jvh.12499] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/05/2015] [Indexed: 01/04/2023]
Abstract
In Korea, patients with chronic hepatitis C virus (HCV) infection are typically treated with pegylated interferon-alpha plus ribavirin, but interferons are contraindicated in many patients and are often poorly tolerated, particularly by the elderly and those with advanced liver disease. No interferon-free treatment regimens are approved in Korea. Sofosbuvir is an oral nucleotide analog inhibitor of the HCV nonstructural 5B RNA polymerase. It is approved in the USA, European Union and Japan for treating a number of HCV genotypes, including genotype 2. Genotype 2 has a seroprevalence of 38-46% in Korea. This single-arm, phase 3b study (NCT02021643) examined the efficacy and safety of sofosbuvir plus ribavirin (12-week duration) in chronic genotype 2 HCV-infected treatment-naive and treatment-experienced Korean patients with and without cirrhosis. The proportion of patients with sustained virologic response 12 weeks after treatment discontinuation (SVR12) was 97% (125/129), with 96% (101/105) of treatment-naive and 100% (24/24) of treatment-experienced patients achieving SVR12. Two patients experienced virologic failure (n = 1, on-treatment failure; n = 1, relapse). No patient discontinued study treatment due to an adverse event (AE). The most common treatment-emergent AEs were headache (18%, 23/129) and pruritus (15%, 19/129). Few patients had grade 3 AEs (5%, 6/129) or grade 3 laboratory abnormalities (12%, 15/129). No grade 4 AE was reported. These data suggest that 12 weeks of treatment with the all-oral, interferon-free regimen of sofosbuvir plus ribavirin is effective and well tolerated in Korean patients with chronic genotype 2 HCV infection.
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Affiliation(s)
- S H Ahn
- Yonsei University College of Medicine, Seoul-Korea, South Korea
| | - Y S Lim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul-Korea, South Korea
| | - K S Lee
- Gangnam Severance Hospital, Yonsei University Health System, Seoul-Korea, South Korea
| | - S W Paik
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul-Korea, South Korea
| | - Y J Lee
- Pusan Paik Hospital, Inje University, Busan-Korea, South Korea
| | - S H Jeong
- Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-Korea, South Korea
| | - J H Kim
- Gachon University Gil Hospital, Incheon-Korea, South Korea
| | - S K Yoon
- Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul-Korea, South Korea
| | - H J Yim
- Korea University Ansan Hospital, Ansan-si, Gyeonggi-do-Korea, South Korea
| | - W Y Tak
- Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, South Korea
| | - S Y Han
- Dong-A University Medical Center, Busan-Korea, South Korea
| | - J C Yang
- Gilead Sciences Inc., Foster City, CA, USA
| | - H Mo
- Gilead Sciences Inc., Foster City, CA, USA
| | - A Mathias
- Gilead Sciences Inc., Foster City, CA, USA
| | - L Han
- Gilead Sciences Inc., Foster City, CA, USA
| | - S J Knox
- Gilead Sciences Inc., Foster City, CA, USA
| | | | - Y J Kim
- Seoul National University Hospital, Seoul National University College of Medicine and Liver Research Institute, Seoul, Korea
| | - K S Byun
- Korea University Guro Hospital, Seoul-Korea, South Korea
| | - Y S Kim
- Soonchunhyang University Bucheon Hospital, Bucheon-Korea, South Korea
| | - J Heo
- Pusan National University and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - K H Han
- Yonsei University College of Medicine, Seoul-Korea, South Korea
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Vutien P, Hoang J, Brooks L, Nguyen NH, Nguyen MH. Racial Disparities in Treatment Rates for Chronic Hepatitis C: Analysis of a Population-Based Cohort of 73,665 Patients in the United States. Medicine (Baltimore) 2016; 95:e3719. [PMID: 27258498 PMCID: PMC4900706 DOI: 10.1097/md.0000000000003719] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Chronic hepatitis C (CHC) disproportionately affects racial minorities in the United States (US). Although prior studies have reported lower treatment rates in Blacks than in Caucasians, the rates of other minorities remain understudied. We aimed to examine antiviral treatment rates by race and to evaluate the effect of other demographic, medical, and psychiatric factors on treatment rates. We performed a population-based study of adult CHC patients identified via ICD-9CM query from OptumInsight's Data Mart from January 2009 to December 2013. Antiviral treatment was defined by pharmaceutical claims for interferon and/or pegylated-interferon. A total of 73,665 insured patients were included: 51,282 Caucasians, 10,493 Blacks, 8679 Hispanics, and 3211 Asians. Caucasians had the highest treatment rate (10.7%) followed by Blacks (8.8%), Hispanics (8.8%), and Asians (7.9%, P < .001). Hispanics had the highest cirrhosis rates compared with Caucasians, Blacks, and Asians (20.7% vs 18.3%, 17.1%, and 14.3%, respectively). Caucasians were the most likely to have a psychiatric comorbidity (20.1%) and Blacks the most likely to have a medical comorbidity (44%). Asians were the least likely to have a psychiatric (6.4%) or medical comorbidity (26.9%). On multivariate analysis, racial minority was a significant predictor of nontreatment with odds ratios of 0.82 [confidence interval (CI): 0.74-0.90] for Blacks, 0.87 (CI: 0.78-0.96) for Hispanics, and 0.73 (CI: 0.62-0.86) for Asians versus Caucasians. Racial minorities had lower treatment rates than Caucasians. Despite fewer medical and psychiatric comorbidities and higher incomes and educational levels, Asians had the lowest treatment rates. Hispanics also had lower treatment rates than Caucasians despite having higher rates of cirrhosis. Future studies should aim to identify underlying racial-related barriers to hepatitis C virus treatment besides socioeconomic status and medical or psychiatric comorbidities.
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Affiliation(s)
- Philip Vutien
- From the Division of Gastroenterology and Hepatology, Stanford University Medical Center, Stanford, CA (PV, JH, MHN), Department of Medicine, Rush University Medical Center, Chicago, IL (PV), Optum Insight, Eden Prairie, MN (LBJ), and University of California San Diego Medical Center, San Diego, CA (NHN)
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Livingston SE, Townshend-Bulson LJ, Bruden DJT, Homan CE, Gove JE, Plotnik JN, Simons BC, Spradling PR, McMahon BJ. Results of interferon-based treatments in Alaska Native and American Indian population with chronic hepatitis C. Int J Circumpolar Health 2016; 75:30696. [PMID: 27029671 PMCID: PMC4814572 DOI: 10.3402/ijch.v75.30696] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/22/2016] [Accepted: 02/28/2016] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND There have been few reports of hepatitis C virus (HCV) treatment results with interferon-based regimens in indigenous populations. OBJECTIVE To determine interferon-based treatment outcome among Alaska Native and American Indian (AN/AI) population. DESIGN In an outcomes study of 1,379 AN/AI persons with chronic HCV infection from 1995 through 2013, we examined treatment results of 189 persons treated with standard interferon, interferon plus ribavirin, pegylated interferon plus ribavirin and triple therapy with a protease inhibitor. For individuals treated with pegylated interferon and ribavirin, the effect of patient characteristics on response was also examined. RESULTS Sustained virologic response (SVR) with standard interferon was 16.7% (3/18) and with standard interferon and ribavirin was 29.7% (11/37). Of 119 persons treated with pegylated interferon and ribavirin, 61 achieved SVR (51.3%), including 10 of 46 with genotype 1 (21.7%), 38 of 51 with genotype 2 (74.5%) and 13 of 22 with genotype 3 (59.1%). By multivariate analysis, SVR in the pegylated interferon group was associated with female sex (p=0.002), estimated duration of infection (p=0.034) and HCV genotype (p<0.0001). There was a high discontinuation rate due to side effects in those treated with pegylated interferon and ribavirin for genotype 1 (52.2%). Seven of 15 genotype 1 patients treated with pegylated interferon, ribavirin and telaprevir or boceprevir achieved SVR (46.7%). CONCLUSIONS We had success with pegylated interferon-based treatment of AN/AI people with genotypes 2 and 3. However, there were low SVR and high discontinuation rates for those with genotype 1.
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Affiliation(s)
- Stephen E Livingston
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - Lisa J Townshend-Bulson
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - Dana J T Bruden
- Arctic Investigations Program, Division of Preparedness and Emerging Infections, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Anchorage, AK, USA
| | - Chriss E Homan
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - James E Gove
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - Julia N Plotnik
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - Brenna C Simons
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
| | - Philip R Spradling
- Division of Viral Hepatitis, National Center for HIV/AIDS, Viral Hepatitis STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Brian J McMahon
- Liver Disease and Hepatitis Program, Alaska Native Tribal Health Consortium, Anchorage, AK, USA
- Arctic Investigations Program, Division of Preparedness and Emerging Infections, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Anchorage, AK, USA;
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Wilder J, Saraswathula A, Hasselblad V, Muir A. A Systematic Review of Race and Ethnicity in Hepatitis C Clinical Trial Enrollment. J Natl Med Assoc 2016; 108:24-9. [PMID: 26928485 PMCID: PMC5857937 DOI: 10.1016/j.jnma.2015.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The African American/Black population in the United States (US) is disproportionately affected by hepatitis C virus (HCV) and has lower response rates to current treatments. This analysis evaluates the participation of African American/Blacks in North American and European HCV clinical trials. The data source for this analysis was the PubMed database. Randomized controlled clinical trials (RCT) on HCV treatment with interferon 2a or 2b between January 2000 and December 2011 were reviewed. Inclusion criteria included English language and participants 18 years or older with chronic HCV. Exclusion criteria included non-randomized trials, case reports, cohort studies, ethnic specific studies, or studies not using interferon-alfa or PEG-interferon. Of the 588 trials identified, 314 (53.4%) fit inclusion criteria. The main outcome was the rate of African American/ Black participation in North American HCV clinical trials. A meta-analysis comparing the expected and observed rates was performed. Of the RCT's that met search criteria, 123 (39.2%) reported race. Clinical trials in North America were more likely to report racial data than European trials. Racial reporting increased over time. There was a statistically significant difference among the expected and observed participation of African Americans in HCV clinical trials in North America based on the prevalence of this disease within the population. The burden of HCV among African Americans in North America is not reflected in those clinical trials designed to treat HCV. Research on minority participation in clinical trials and how to increase minority participation in clinical trials is needed.
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Affiliation(s)
- Julius Wilder
- Division of Gastroenterology, Duke University School of Medicine, Duke Clinical Research Institute.
| | | | | | - Andrew Muir
- Division of Gastroenterology, Duke University School of Medicine, Duke Clinical Research Institute
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Wilder JM, Jeffers LJ, Ravendhran N, Shiffman ML, Poulos J, Sulkowski MS, Gitlin N, Workowski K, Zhu Y, Yang JC, Pang PS, McHutchison JG, Muir AJ, Howell C, Kowdley K, Afdhal N, Reddy KR. Safety and efficacy of ledipasvir-sofosbuvir in black patients with hepatitis C virus infection: A retrospective analysis of phase 3 data. Hepatology 2016; 63:437-44. [PMID: 26547499 PMCID: PMC4738375 DOI: 10.1002/hep.28334] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 11/05/2015] [Indexed: 01/08/2023]
Abstract
UNLABELLED Black patients chronically infected with genotype 1 hepatitis C virus (HCV) have historically had lower rates of response to interferon-based treatment than patients of other races. In the phase 3 ION program, the single-tablet regimen of the NS5A inhibitor ledipasvir and NS5B nucleotide polymerase inhibitor sofosbuvir was shown to be safe and highly effective in the general population. The aim of this study was to evaluate the safety and efficacy of ledipasvir/sofosbuvir in black patients using data from the three open-label ION clinical trials, which evaluated the safety and efficacy of 8, 12, and 24 weeks of ledipasvir/sofosbuvir with or without ribavirin for the treatment of treatment-naïve and treatment-experienced patients with genotype 1 HCV, including those with compensated cirrhosis. The primary endpoint was sustained virologic response at 12 weeks after the end of therapy (SVR12). For our analysis, rates of SVR12, treatment-emergent adverse events, and graded laboratory abnormalities were analyzed in black versus non-black patients. Of the 1949 patients evaluated, 308 (16%) were black. On average, black patients were older, had higher body mass index, were more likely to be IL28B non-CC, and had a lower serum alanine aminotransferase at baseline than non-black patients. Overall, 95% of black and 97% of non-black patients achieved SVR12. The rate of relapse was 3% in black patients as compared with 2% in non-black patients. The most common adverse events included fatigue, headache, nausea, and insomnia. The majority of adverse events occurred more frequently in the ribavirin-containing arms of the studies. No differences were observed in overall safety by race. CONCLUSION A once-daily dosage of ledipasvir/sofosbuvir was similarly effective in black and non-black patients with genotype 1 HCV infection. The addition of ribavirin did not appear to increase SVR12 but was associated with higher rates of adverse events.
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Affiliation(s)
| | | | | | - Mitchell L. Shiffman
- Liver Institute of Virginia, Bon Secours Health System, Richmond and Newport NewsVA
| | - John Poulos
- Fayetteville Gastroenterology Associates, Cumberland Research AssociatesFayettevilleNC
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Mohamed AA, Elbedewy TA, El-Serafy M, El-Toukhy N, Ahmed W, Ali El Din Z. Hepatitis C virus: A global view. World J Hepatol 2015; 7:2676-2680. [PMID: 26609344 PMCID: PMC4651911 DOI: 10.4254/wjh.v7.i26.2676] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 07/29/2015] [Accepted: 11/04/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatitis C virus (HCV) is a global challenge; 130-175 million are chronically infected. Over 350000 die each year from HCV. Chronic HCV is the primary cause of cirrhosis, hepatocellular carcinoma (HCC), and end-stage liver disease. Management of chronic HCV is aimed at preventing cirrhosis, reducing the risk of HCC, and treating extra hepatic complications. New treatments for chronic HCV has been devoted based on direct-acting antivirals, as pegylated interferon (peginterferon) is responsible for many side effects and limits treatment access. Sofosbuvir is the first compound to enter the market with Peginterferon-free combination regimens.
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Deliorman Orhan D, Hartevioğlu A, Orhan N, Berkkan A, Gökbulut A, Günhan Ö, Pekcan M. Subacute Effects of Standardized F
umaria Vaillantii
Lois. Ethanol Extract on Trace Element Levels, Biochemical and Histopathological Parameters in Experimental Liver Toxicity. J Food Biochem 2015. [DOI: 10.1111/jfbc.12208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Didem Deliorman Orhan
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Ali Hartevioğlu
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Nilüfer Orhan
- Department of Pharmacognosy; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Aysel Berkkan
- Department of Analytical Chemistry; Faculty of Pharmacy; Gazi University; Etiler Ankara 06330 Turkey
| | - Alper Gökbulut
- Department of Pharmacognosy; Faculty of Pharmacy; Ankara University; Ankara Turkey
| | - Ömer Günhan
- Department of Pathology; Gülhane Military Medical Academy; Ankara Turkey
| | - Mert Pekcan
- Department of Biochemistry; Faculty of Veterinary Medicine; Ankara University; Ankara Turkey
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Salem ML, El-Badawy A. Programmed death-1/programmed death-L1 signaling pathway and its blockade in hepatitis C virus immunotherapy. World J Hepatol 2015; 7:2449-2458. [PMID: 26483866 PMCID: PMC4606200 DOI: 10.4254/wjh.v7.i23.2449] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 06/29/2015] [Accepted: 09/07/2015] [Indexed: 02/06/2023] Open
Abstract
Chronic hepatitis C virus (HCV) infection is a public health issue that often progresses to life-threatening complications, including liver cirrhosis, fibrosis, and hepatocellular carcinoma. Impaired immune responses to HCV are key features of chronic HCV infection. Therefore, intervention strategies usually involve enhancing the immune responses against HCV. Cytotoxic CD8+ T lymphocytes (CTLs) play a critical role in the control of HCV infection. However, their cytolytic function can be impaired by the expression of co-inhibitory molecules. Programmed death-1 (PD-1) receptor and its ligand PD-L1 function in a T cell co-inhibitory pathway, which either blocks the function of CTLs or the differentiation of CD8+ T cells. During chronic HCV infection, the immune inhibitory receptor PD-1 is upregulated on dysfunctional HCV-specific CD8+ T cells. As such, blockade of the PD-1/PD-L1 pathway in these CD8+ T cells might restore their functional capabilities. Indeed, clinical trials using therapies to block this pathway have shown promise in the fostering of anti-HCV immunity. Understanding how chronic HCV infection induces upregulation of PD-1 on HCV specific T cells and how the PD-1/PD-L1 interaction develops HCV specific T cell dysfunction will accelerate the development of an efficacious prophylactic and therapeutic vaccination against chronic HCV infections, which will significantly improve HCV treatments and patient survival. In this review, we discuss the relationship between PD-1 expression and clinical responses and the potential use of PD-1 blockade for anti-HCV therapy.
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Resham S, Manzoor S, Imran M, Saalim M, Naseem S, Azam S. Interleukin- 28B: a prognostic marker in interferon based therapy of chronic HCV patients of the Pakistan with variable treatment response. APMIS 2015; 123:765-71. [PMID: 26177560 DOI: 10.1111/apm.12414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 06/01/2015] [Indexed: 12/11/2022]
Abstract
Unfortunately Pakistan carries one of the world's highest burdens of chronic hepatitis along with mortality due to liver failure and hepatocellular carcinoma. Scientists after extensive research have come up with this outcome that host genetics play a vital role in dictating the type of treatment response produced by the patients. In 2009, a genome wide association study (GWAS) revealed that genetic variants in close proximity to the IL28B (IFNL3) gene predicted greater likelihood of achieving sustained virological response (SVR) following treatment with pegylated IFN-alpha (peg INF-α) and ribavirin. IL28B (rs12979860 and rs8099917) single nucleotide polymorphisms (SNPs) have been recently found among the Pakistani population associated with response to chronic HCV infection INF-α + ribavirin therapy. Therefore, this study was aimed to investigate the IL-28B protein levels in the HCV infected patients. The findings showed that the serum IL28B protein level was higher in HCV infected patients as compared to healthy controls (7.743 ± 1.519 pg/mL versus 1.600 ± 0.06054 [mean ± SEM], p < 0.05). When the chronic hepatitis C (CHC) patients were further categorized into SVR and NR (non-responders) on the basis of treatment outcomes, the mean IL28B protein level was higher in NRs (15.54 ± 3.609) than SVRs (4.259 ± 0.3405). Thus, there was a significant correlation between IL28B protein level in varied treatment response (p < 0.05). However, the findings can lead us to propose that IL28B could be used as a prognostic marker. It can help the clinicians to take better pre-informed decisions whether to take combinational therapy of peg IFN ± ribavirin or not. This will in turn prove beneficial for the patient by saving patients' health, treatment cost and undesirable treatment side effects.
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Affiliation(s)
- Saleha Resham
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Sobia Manzoor
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Muhammad Imran
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Muhammad Saalim
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Sidrah Naseem
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Sikandar Azam
- Atta-Ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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40
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Bellanti F, Lauletta G, Villani R, Lipsi MR, Natalicchio MI, Sansonno D, Vendemiale G, Serviddio G. Combined Effects of 2 Interleukin 28B Polymorphisms on the Therapeutic Outcome of Hepatitis C Patients With Circulating Cryoglobulins. Medicine (Baltimore) 2015; 94:e1409. [PMID: 26334898 PMCID: PMC4616511 DOI: 10.1097/md.0000000000001409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/24/2015] [Accepted: 07/24/2015] [Indexed: 02/05/2023] Open
Abstract
Chronic hepatitis C is commonly associated with extrahepatic manifestations. Cryoglobulins are observed in 40% to 60% of such patients and their presence seems to modify response to therapy. The new antivirals are greatly improving the sustained virological response (SVR); however, their high cost limits the use, leaving pegylated interferon plus ribavirin (PR) still the standard-of-care therapy worldwide. Since PR therapy is burdened with several side effects, pretreatment predictions of patients who are unlikely to respond to this regimen may avoid ineffective treatment. Variants of the interleukin-28B (IL28B) gene correlate with an SVR to PR, and combined IL28B polymorphisms may improve the prediction of treatment outcome.The potential role of both rs8099917 and rs12979860 IL28B single nucleotide polymorphisms (SNPs) combined with presence of cryoglobulins in predicting SVR to PR in hepatitis C virus (HCV)-chronically infected patients was analyzed in the present study.Single and combined IL28B SNPs (rs12979860 and rs8099917) were analyzed in 64 chronic HCV patients treated with PR showing circulating cryoglobulins and compared to 108 noncryoglobulinemic subjects to verify the predictive value on the SVR.The association of rs12979860CC or rs8099917TT with SVR was confirmed in the noncryoglobulinemic group but not in cryoglobulinemic patients. Moreover, the combined determination of both SNPs improved the prediction of SVR in noncryoglobulinemic patients but not in the cryoglobulinemic subgroup.We report that both single and combined determination of IL28B rs12979860 and rs8099917 SNPs in chronic HCV patients with circulating cryoglobulins treated with PR may have a reduced predictive value of SVR.
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Affiliation(s)
- Francesco Bellanti
- From the Department of Medical and Surgical Sciences, C.U.R.E. Centre for Liver Diseases Research and Treatment, Institute of Internal Medicine, University of Foggia, Foggia, Italy (FB, RV, GV, GS); Liver Unit, Division of Internal Medicine and Clinical Oncology, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, Bari, Italy (GL, DS); and Department of Clinical Pathology, II Laboratory, Section of Cytogenetic and Molecular Biology, University Hospital "Ospedali Riuniti", Foggia, Italy (MRL, MIN)
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Song ZZ. Randomized study of danoprevir/ritonavir-based therapy for HCV genotype 1 patients with prior partial or null responses to peginterferon/ribavirin. J Hepatol 2015; 63:769-70. [PMID: 26142179 DOI: 10.1016/j.jhep.2015.03.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 03/30/2015] [Indexed: 01/26/2023]
Affiliation(s)
- Ze-Zhou Song
- Department of Ultrasound, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, China.
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Whitehead NE, Hearn L, Trenz RC, Burrell LE, Latimer WW. Age cohort differences in illicit drug use and hepatitis C among African American substance users. J Addict Dis 2015; 33:314-21. [PMID: 25299749 DOI: 10.1080/10550887.2014.969605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Identifying prognostic indicators for undiagnosed Hepatitis C is crucial to attenuate the negative impact of this disease. This study explored the influence of recent and more distal injection drug use on biologically confirmed Hepatitis C infection among a sample (N = 260) of older and younger African Americans. Data from the baseline assessment of the NEURO-HIV epidemiologic study was analyzed using confounder adjusted regression techniques. Older adults were more likely to test positive for Hepatitis C (OR = 2.80, 95% CI = 1.53-5.11) due to lifetime injection drug use (AOR = 5.37, 95% CI = 3.10-9.28). Clinical implications are discussed.
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Affiliation(s)
- Nicole Ennis Whitehead
- a Department of Clinical and Health Psychology, College of Public Health and Health Professions , University of Florida , Gainesville , Florida , USA
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43
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Sarvari J, Moattari A, Pirbonyeh N, Moini M, Hosseini SY. The Impact of IFN-γ Gene Polymorphisms on Spontaneous Clearance of HCV Infection in Fars Province, Southern of Iran. J Clin Lab Anal 2015; 30:301-7. [PMID: 25990657 DOI: 10.1002/jcla.21855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 04/08/2015] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Certain polymorphisms in cytokine genes such as IFN-γ may influence the outcome of hepatitis C virus (HCV) infection. Here the frequency of the genotype, allele, and haplotype of IFN-γ gene at some loci is investigated in HCV-infected patients. METHODS Totally 255 patients with chronic HCV infection and 44 spontaneously cleared individuals were included. The chronic or clearance states were confirmed using enzyme-linked immunosorbent assay (ELISA) and two different qualitative reverse transcriptase polymerase chain reaction (RT-PCR) techniques. IFN-γ gene polymorphisms were performed by PCR using sequence-specific primers and PCR-RLFP on extracted genomic DNA. RESULTS The frequency of GG genotype (P = 0.0001, OR: 5.69 and CI: 2.21-14.62) and allele (P = 0.0003, OR: 2.73 and CI: 1.54-4.83) of IFN-γ gene at +2109 locus was significantly higher in cases that spontaneously cleared the infection. Haplotype analysis showed the association of AG haplotype (P = 0.0046, OR = 6.14 and CI = 1.56-25) with spontaneous clearance of the infection. CONCLUSION Our finding indicated that individuals with GG genotype at +2109 loci of IFN-γ gene and also AG haplotype (A allele at +874 loci and G allele at +2109 loci) may clear HCV infection more frequently than those with AA and AG genotype at +2109 loci and AA, TA, and TG haplotype.
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Affiliation(s)
- Jamal Sarvari
- Department of Bacteriology & Virology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Afagh Moattari
- Department of Bacteriology & Virology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Pirbonyeh
- Department of Bacteriology & Virology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Moini
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Younes Hosseini
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Bader El Din NG, Salum GM, Anany MA, Ibrahim MK, Dawood RM, Zayed N, El Abd YS, El-Shenawy R, El Awady MK. Association of Myxovirus Resistance Gene Promoter Polymorphism with Response to Combined Interferon Treatment and Progression of Liver Disease in Chronic HCV Egyptian Patients. J Interferon Cytokine Res 2015; 35:641-8. [PMID: 25868067 DOI: 10.1089/jir.2014.0137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
To evaluate the frequency of single-nucleotide polymorphism at the -88 myxovirus resistance (MxA) gene promoter region in relation to the status of hepatitis C virus (HCV) progression and response to combined interferon (IFN) in chronic HCV Egyptian patients. One hundred ten subjects were enrolled in the study; 60 HCV genotype 4-infected patients who underwent combined IFN therapy and 50 healthy individuals. All subjects were genotyped for -88 MxA polymorphism by the restriction fragment length polymorphism technique. There was an increasing trend of response to combined IFN treatment as 34.9% of GG, 64.3% of GT, and 66.7% of TT genotypes were sustained responders (P=0.05). The T allele was significantly affecting the response rate more than G allele (P=0.032). Moreover, the hepatic fibrosis score and hepatitis activity were higher in GG genotypes compared with the GT and TT genotypes. The multivariate analysis showed that the MxA GG genotype was an independent factor increasing the no response to IFN therapy (P=0.04, odds ratio [OR] 3.822, 95% confidence interval [CI] 1.056-11.092), also MxA G allele (P=0.0372, OR 2.905, 95% CI 1.066-7.919). MxA -88 polymorphism might be a potential biomarker to predict response to IFN and disease progression in chronic HCV-infected patients.
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Affiliation(s)
| | - Ghada M Salum
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Mohamed A Anany
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Marwa Khalil Ibrahim
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Reham Mohamed Dawood
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Naglaa Zayed
- 2 Department of Endemic Medicine, Faculty of Medicine, Cairo University , Cairo, Egypt
| | - Yasmine S El Abd
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Reem El-Shenawy
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
| | - Mostafa K El Awady
- 1 Department of Microbial Biotechnology, National Research Centre , Cairo, Egypt
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Sustained virologic response rates with telaprevir-based therapy in treatment-naive patients evaluated by race or ethnicity. J Clin Gastroenterol 2015; 49:336-44. [PMID: 24828357 DOI: 10.1097/mcg.0000000000000150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND The phase 3 studies of telaprevir (T) in combination with peginterferon α-2a and ribavirin (PR) in treatment-naive genotype 1 chronic hepatitis C virus-infected patients (ADVANCE/ILLUMINATE) were not designed a priori to assess the effect of race and ethnicity on treatment response. However, these factors are important given the lower sustained virologic response (SVR) rates observed in black and Hispanic/Latino patients treated with PR. GOALS This retrospective pooled analysis evaluated the effect of race or ethnicity on treatment-naive patient response to telaprevir-based therapy and assessed resistant variant profiles. MATERIALS AND METHODS This analysis comprised patients enrolled in ADVANCE (N=363) and ILLUMINATE (N=540) who received 12 weeks of telaprevir in combination with PR followed by 12 or 36 weeks of PR alone and patients in ADVANCE (N=361) who received 48 weeks of PR alone. Race and ethnicity were self-reported and not mutually exclusive. RESULTS Higher SVR rates were observed with telaprevir-based therapy compared with PR in blacks [n=99 (62%) vs. n=28 (29%), respectively] and in Hispanics/Latinos [n=89 (72%) vs. n=38 (39%)]. The SVR was lower in telaprevir-treated blacks [n=99 (62%)] compared with nonblacks [n=791 (78%)] and in Hispanic/Latinos compared with non-Hispanics/Latinos [n=89 (72%) vs. n=801 (76%)]. Low discontinuation rates due to adverse events, including rash and anemia, were observed across subgroups. Resistance profiles were similar among the subgroups. CONCLUSIONS Treatment-naive black and Hispanic/Latino patients with genotype 1 chronic hepatitis C virus infection may benefit from telaprevir-based therapy, an important finding given the lower SVR rates observed in these patients when they are treated with PR alone.
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Rodriguez-Torres M, Torriani F, Rockstroh J, Depamphilis J, Carosi G, Dieterich D. Degree of Viral Decline Early in Treatment Predicts Sustained Virological Response in HCV-HIV Coinfected Patients Treated with Peginterferon Alfa-2a and Ribavirin. HIV CLINICAL TRIALS 2015; 11:1-10. [DOI: 10.1310/hct1101-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Opravil M, Rodriguez-Torres M, Rockstroh J, Snoeck E, Chung RT, Tietz A, Torriani FJ. The Dose-Response Relationship of Peginterferon Alfa-2a and Ribavirin in the Treatment of Patients Coinfected with HIV-HCV. HIV CLINICAL TRIALS 2015. [DOI: 10.1310/hct1301-33] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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48
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Rodriguez-Torres M, Slim J, Bhatti L, Sterling R, Sulkowski M, Hassanein T, Serrão R, Sola R, Bertasso A, Passe, and S, Stancic S. Peginterferon alfa-2a Plus Ribavirin for HIV-HCV Genotype 1 Coinfected Patients: A Randomized International Trial. HIV CLINICAL TRIALS 2015; 13:142-52. [DOI: 10.1310/hct1303-142] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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49
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Cortez KJ, Kottilil S. Beyond interferon: rationale and prospects for newer treatment paradigms for chronic hepatitis C. Ther Adv Chronic Dis 2015; 6:4-14. [PMID: 25553238 DOI: 10.1177/2040622314551934] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hepatitis C virus (HCV) infection results in a chronic carrier state in 80% of individuals infected with the virus and presently affects over 170 million people worldwide. Approximately 20% of those chronically infected will ultimately progress to develop cirrhosis and death due to end-stage liver disease or hepatocellular carcinoma (HCC). Unlike many other chronic viral infections, effective treatments for HCV are available. Cure from the infection is known as a sustained virologic response (SVR). SVR is associated with reversal of the long-term outcomes of chronic liver disease, decrease in incidence of HCC, and decrease HCV attributable mortality. The current FDA approved therapies for hepatitis C virus genotype 1 (GT-1) include pegylated interferon (PEG-IFN) and ribavirin (RBV) in combination with a directly acting antiviral agent (DAA). New therapeutic advances are being made aiming to simplify management, improve the tolerability of treatment, and shorten the duration of therapy. Moreover, treatment regimens that will effectively eradicate hepatitis C without the use of interferon formulations (IFN) are being developed. In this review, we report the transition of HCV therapeutics from an interferon-α based combination therapy to an all-oral, directly acting antiviral therapy.
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Affiliation(s)
| | - Shyam Kottilil
- Immunopathogenesis Section, Laboratory of Immunoregulation, NIAID, NIH, Building 10, Room 11N204, Bethesda, MD 20892, USA
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Geri G, Maynard M, Rosenthal E, Fontaine H, Lacombe K, Slama L, Goujard C, Loustaud-Ratti V, Bergmann JF, Morlat P, Vittecoq D, Alric L, Cacoub P. Care of hepatitis C virus infection in France: modifications in three consecutive surveys between 1995 and 2010. Liver Int 2014; 34:1349-57. [PMID: 25368876 DOI: 10.1111/liv.12388] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS To determine the characteristics of hepatitis C (HCV)- infected patients in 2010 and compare this survey with those reported in 1995 and 2001. PATIENTS AND METHODS Observational multicentre study conducted in 2010 in French internal medicine, infectious diseases and hepatology departments. RESULTS A total of 1621 HCV infected patients (mean age 50.1 ± 10.7 years; sex ratio M/F 1.8; genotype 1: 55.7%) were included. Of these, 910 (56.1%) were HIV–HCV co-infected, 463 (40.4%) were asymptomatic and 184 (16.1%) had cirrhosis at inclusion in this study. Positive viraemia was found in 1,025 patients (65.5%) at inclusion in this study. A complete pretreatment evaluation including investigation for HCV RNA, genotype determination and liver fibrosis was performed in 96.5, 80.5 and 68.7% of the 1,621 patients respectively. Previous and ongoing HCV treatments were noted in 49.6% and 20.1% of patients respectively. A sustained virological response (SVR) was observed in 271/801 (38.3%) patients, i.e. 44.1% and 30.7% in co-infected and mono-infected patients respectively. Cirrhosis was more frequent in the 2010 than in the 2001 and 1995 surveys (16.1% vs. 10.4% and 7.4% respectively; P < 0.0001). A complete pretreatment evaluation was performed in 57.9% and 50.9% of patients in 2010 and 2001 (P < 0.0001). Liver fibrosis evaluation was more frequent in 2010 than in the 2001 and 1995 surveys (68.7% vs. 62.7% and 28.7%, respectively, P < 0.0001). CONCLUSION The care of HCV-infected patients has changed significantly in ‘real life’ through an improvement of pretreatment evaluation before the antiviral introduction and the increased use of antivirals. New HCV therapy combinations including protease inhibitors are warranted to increase the SVR rate.
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Affiliation(s)
- Guillaume Geri
- Departement Hospitalo-Universitaire I2B; UPMC Univ Paris 06; UMR 7211; Paris France
- INSERM; UMR_S 959; Paris France
- CNRS; UMR 7211; Paris France
- AP-HP; Groupe Hospitalier Pitié-Salpêtrière; Department of Internal Medicine; Paris France
| | - Marianne Maynard
- Service d'hépatologie et de gastroentérologie; Hospices Civils de Lyon; Lyon France
| | - Eric Rosenthal
- Service de médecine interne; Centre Hospitalier Universitaire de Nice et Université de Nice Sophia-Antipolis; Paris France
| | - Hélène Fontaine
- Unité d'hépatologie médicale; Hôpital Cochin; Assistance Publique-Hôpitaux de Paris; Paris France
| | - Karine Lacombe
- Service de maladies infectieuses et tropicales; Hôpital Saint Antoine; Assistance Publique-Hôpitaux de Paris; Faculté de Médecine Pierre et Marie Curie; Paris France
| | - Laurence Slama
- Service de maladies infectieuses et tropicales; Hôpital Tenon; Assistance Publique-Hôpitaux de Paris; Paris France
| | - Cécile Goujard
- Service de médecine interne; Hôpital Bicêtre; Assistance Publique-Hôpitaux de Paris; Le Kremlin Bicêtre France
| | - Véronique Loustaud-Ratti
- Fédération d'Hépatologie; Hôpital Dupuytren; Centre Hospitalier Universitaire de Limoges; Limoges France
| | - Jean-François Bergmann
- Service de médecine interne A; Hôpital Lariboisière; Assistance Publique-Hôpitaux de Paris; UFR de Médecine Université Paris Diderot; Paris France
| | - Philippe Morlat
- Service de médecine interne et maladies infectieuses; Hôpital Saint André; Centre Hospitalier Universitaire de Bordeaux; Bordeaux France
| | - Daniel Vittecoq
- Département de médecine interne et infectiologie; Hôpital Paul Brousse; Assistance Publique-Hôpitaux de Paris; Villejuif France
| | - Laurent Alric
- Service de médecine interne; Centre Hospitalier Universitaire Purpan; UMR 152 Université Toulouse III; Toulouse France
| | - Patrice Cacoub
- Departement Hospitalo-Universitaire I2B; UPMC Univ Paris 06; UMR 7211; Paris France
- INSERM; UMR_S 959; Paris France
- CNRS; UMR 7211; Paris France
- AP-HP; Groupe Hospitalier Pitié-Salpêtrière; Department of Internal Medicine; Paris France
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