HCV Treatment With New Therapies in Patients With Cirrhosis Paul Y. Kwo, MD Professor of Medicine Medical Director of Transplantation Division of Medicine/Gastroenterology/ Hepatology Indiana University School of Medicine Indianapolis, Indiana This activity is supported by educational grants from Gilead Sciences and Janssen. Estimated 1 Million HCV-Infected Persons in the US Will Have Cirrhosis by 2020 Projection based on multicohort natural history model Acute hepatitis Cirrhosis Ever infected Chronic HCV 5,000,000 4,000,000 3,000,000 2,000,000 Peak incidence Davis GL, et al. Gastroenterology. 2010;138:513-521. Yr 40 yrs Peak cirrhosis 2030 2020 2010 2000 1990 1980 1970 0 1960 1,000,000 1950 Total Number of HCVInfected Persons 6,000,000 GBD 2010: HCV-Related Cirrhosis, Liver Cancer, and Death in the United States Estimated 19,500 liver cancer and 49,500 cirrhosis deaths in US in 2010 Total liver-related deaths increased from 45,000 to 70,000 over 20 yrs Causes of CLD Death, US 2010 HBV HCV Causes of CLD Death, US 50 25,000 41 40 39 29 30 16 14 13 8 10 0 20,000 Deaths (n) Deaths (%) 40 20 Liver cancer–HCV Cirrhosis–HCV Liver cancer–alcohol Cirrhosis–alcohol Liver cancer–HBV Cirrhosis–HBV Alcohol Other 15,000 10,000 5000 0 Liver Cancer Cirrhosis 1990 1995 2000 2005 2010 Yr Cowie BC, et al. AASLD 2013. Abstract 23. Birth Cohort Screening and DAA Tx Could Greatly Reduce HCV-Related Transplants Markov model[1] based on birth cohort developed to predict transplant rate[2] Assumptions in model: All stages of fibrosis treated at same rate; 90% response rate to new Tx; all pts with decompensated cirrhosis or HCC within Milan criteria considered potential transplant candidates Liver Transplants (n) 180,000 162,559 162,747 150,617 160,000 126,296 140,000 No treatment 120,000 91,310 100,000 25% treated 80,000 60,000 50% treated 49,013 75% treated 40,000 All treated 20,000 0 2013 18,193 2018 25,573 27,175 2023 2028 26,207 24,258 21,994 2033 2038 2043 Yr in Model 1. Davis GL, et al. Gastroenterology. 2010;138:513. 2. Desai AP, et al. AASLD 2013. Abstract 1427. Fibrosis Assessment: Important to Diagnose Cirrhosis AASLD/IDSA guidance An assessment of the degree of hepatic fibrosis, using noninvasive testing or liver biopsy, is recommended (rating: Class I, Level A) Fibrosis assessment used to determine treatment urgency if limited resources prevent treatment of all cases of HCV infection and need for additional screening Cirrhotic patients require regular screening for HCC, varices, other complications Achieving SVR in cirrhotic HCV pts highly beneficial AASLD/IDSA HCV Management Guidance. October 2014. Options for Liver Fibrosis Assessment Liver biopsy: gold standard Liver Biopsy Serum markers of fibrosis Serum Biomarkers Elastography: approved in United States Axial CT/MRI, US can demonstrate cirrhotic morphology, portal hypertension Strategies for Noninvasive Fibrosis Assessment AASLD/IDSA guidance[1] Most efficient strategy combines direct serum biomarkers and transient liver elastography[2] Consider biopsy for any patient with discordant results between 2 testing methods if the information will affect clinical decisions Persons with clinical evidence of cirrhosis do not require further disease staging 1. AASLD/IDSA HCV Management Guidance. October 2014. 2. Boursier J, et al. Hepatology. 2012;55:58-67. AASLD/IDSA: Patients With F3/F4 Fibrosis Have Highest Priority for HCV Treatment Treatment recommended for all patients with chronic HCV infection (rating: Class I, Level A) When constrained resources prevent treatment of all HCV infection cases, highest priority should be given to patients with advanced fibrosis (Metavir F3) or compensated cirrhosis (Metavir F4), liver transplant recipients, and patients with severe extrahepatic hepatitis C Based on available resources, treatment should be prioritized as necessary so that patients at high risk for liver-related complications and severe extrahepatic hepatitis C complications are given high priority AASLD/IDSA HCV Management Guidance. October 2014. Direct-Acting Antiviral Agents: Key Characteristics C E1 E2 p7 NS2 NS3 NS4A NS4B NS5A NS5B NS3/4A Protease Inhibitors (PI) NS5B Nucleos(t)ide Inhibitors (NI) High potency Intermediate potency Limited genotypic coverage Pangenotypic coverage Low barrier to resistance High barrier to resistance NS5A Inhibitors NS5B Nonnucleoside Inhibitors (NNI) High potency Intermediate potency Multigenotypic coverage Limited genotypic coverage Low barrier to resistance Low barrier to resistance Evolving Options for HCV Therapy New in 2013: beginning of all-oral therapy Sofosbuvir Simeprevir New in 2014 and early 2015: all-oral therapy options for all Sofosbuvir/ledipasvir Paritaprevir/ritonavir/ombitasvir + dasabuvir Daclatasvir Additional development of new therapies ongoing Management of Genotype 1 HCV With Cirrhosis Current AASLD/IDSA Guidance: GT1, Previous Nonresponders to pegIFN/RBV Note that guidelines do not yet reflect FDA approval of sofosbuvir/ledipasvir or other agents that may be approved in coming months IFN Eligible Preferred Alternative IFN Ineligible Sofosbuvir 400 mg/day + simeprevir 150 mg/day ± weight-based RBV 1000-1200 mg/day for 12 wks* Sofosbuvir 400 mg/day for 12 wks + weight-based RBV 1000-1200 mg/day + wkly pegIFN for 12-24 wks Simeprevir 150 mg/day for 12 wks + weight-based RBV 1000-1200 mg/day + wkly pegIFN for 48 wks* Sofosbuvir 400 mg/day + weight-based RBV 1000-1200 mg/day for 24 wks *Pts with cirrhosis must have well compensated liver disease to receive simeprevir. AASLD/IDSA HCV Management Guidance. October 2014. Current AASLD/IDSA Guidance: GT1, TxNaive and Previous Relapsers Note that guidelines do not yet reflect FDA approval of sofosbuvir/ ledipasvir or other agents that may be approved in coming months Recommendations for Tx-naive/previous relapse pts with compensated cirrhosis, including those with HCC, same as for pts without cirrhosis IFN Eligible Preferred Sofosbuvir 400 mg/day + weightbased RBV 1000-1200 mg/day + wkly pegIFN for 12 wks Alternative Simeprevir 150 mg/day for 12 wks + weight-based RBV 1000-1200 mg/day plus wkly pegIFN for 24 wks (GT1b or 1a without Q80K only) IFN Ineligible Sofosbuvir 400 mg/day + simeprevir 150 mg/day ± weight-based RBV 1000-1200 mg/day for 12 wks Sofosbuvir 400 mg/day + weight-based RBV 1000-1200 mg/day for 24 wks* *Likely less effective than sofosbuvir + simeprevir, particularly among pts with cirrhosis. AASLD/IDSA HCV Management Guidance. October 2014. Sofosbuvir Oral, once-daily nucleotide NS5B polymerase inhibitor Potent antiviral activity; pangenotypic High barrier to resistance Pharmacology profile No significant drug interactions, including tacrolimus or cyclosporine Approved for combination treatment of HCV in following settings GT1-4 HCV HCC meeting Milan criteria; awaiting transplantation HIV coinfection Sofosbuvir [package insert]. NEUTRINO: SVR12 With Sofosbuvir + pegIFN/RBV in Tx-Naive GT1/4/5/6 Open-label, single-arm, phase III study (N = 327): sofosbuvir 400 mg QD + pegIFN/RBV for 12 wks – 17% cirrhosis 100 SVR12 (%) 80 SVR12 by Biopsy Fibrosis Stage F0 F1-F2 100 91 89 78 F3 100 40 40 20 20 124/137 34/38 32/41 0 Patel K, et al. AASLD 2013. Abstract 1093. 96 80 60 16/16 97 85 60 n/N = SVR12 by FibroTest Stage F4 76/78 101/105 0 46/54 79 68/86 Cirrhosis Predictive of Relapse With Sofosbuvir + pegIFN/RBV in GT1 Pooled multivariate regression analysis from NEUTRINO and ATOMIC* studies[1] Odds Ratio P Value Weight ≥ 75 kg 6.8 .01 IL28B non-CC 7.2 .009 Cirrhosis 3.2 .009 Factor *ATOMIC: Open-label multicenter phase II study of sofosbuvir + pegIFN/RBV in noncirrhotic treatment-naive patients; SVR rates 87% to 89% in GT1 HCV[2] 1. Foster GR, et al. EASL 2014. Abstract O66. 2. Kowdley KV, et al. Lancet. 2013;381:2100-2107. Simeprevir Oral, once-daily NS3 PI for GT1 HCV Improved adverse effect profile vs previous PIs: no anemia Fewer drug–drug interactions vs previous PIs: no meaningful drug–drug interactions with tacrolimus No data yet in CTP class B/C pts, but higher simeprevir exposure in CTP class B/C individuals without HCV infection makes dosing problematic Approved for combination treatment of GT1 HCV Screening for Q80K in GT1a pts recommended Simeprevir [package insert]. COSMOS: Simeprevir + Sofosbuvir ± RBV in GT1 HCV Patients Randomized phase IIa study Wk 12 Patients With GT1 HCV Cohort 1: Previous null responders, F0-F2 (N = 80) Cohort 2: Naives and previous null responders, F3-F4 (N = 87) Wk 24 Simeprevir + Sofosbuvir + RBV (n = 54) Simeprevir + Sofosbuvir (n = 31) Simeprevir + Sofosbuvir + RBV (n = 54) Simeprevir + Sofosbuvir (n = 28) Simeprevir 150 mg QD; sofosbuvir 400 mg QD; weight-based RBV 1000-1200 mg/day. Lawitz E, et al. Lancet. 2014;[Epub ahead of print]. COSMOS: SVR12 in Tx-Naive and Previous Null Responders With F3-F4 Fibrosis Treatment-naive patients and previous null responders 100 100 93 93 94 16/16 25/27 13/14 82/87 SMV + SOF SMV + SOF + RBV SMV + SOF SMV + SOF + RBV 93 SVR12 (%) 80 60 40 20 n/N = 0 28/30 SMV + SOF + RBV 24 Wks Lawitz E, et al. Lancet. 2014;[Epub ahead of print]. 12 Wks Overall HCV-TARGET: Adverse Events With Sofosbuvir + Simeprevir ± RBV in GT1 Longitudinal observational analysis of patients receiving DAA-based HCV therapy in North America and Europe 60% of patients with GT1 HCV initiated sofosbuvir + simeprevir ± RBV Most frequent adverse events: mild fatigue, headache, nausea Discontinuations for virologic failure or adverse event: n = 3 Serious adverse events: 10 in 8 patients Deaths: n = 1 (hepatic decompensation) Characteristic, % Sofosbuvir + Simeprevir (n = 347) Sofosbuvir + Simeprevir + RBV (n = 92) Treatment experienced 49 42 Cirrhosis 50 63 GT1a/1b 61/30 78/12 10 10 Post liver transplant Sulkowski MS, et al. AASLD 2014. Abstract 955. Note that these data were available in abstract form only at the time of drafting this slideset and are subject to change at the AASLD 2014 presentation. Sofosbuvir + RBV in Pts With Cirrhosis and Portal HTN ± Decompensation Interim results of an open-label phase II trial Wk 24 Current analysis HCV-infected patients with portal HTN ± decompensated liver disease* (N = 50) Wk 48 Wk 72 Sofosbuvir + Ribavirin (n = 25) Observation (n = 25) Sofosbuvir + Ribavirin (n = 25) Sofosbuvir 400 mg once daily; RBV 1000-1200 mg/day divided twice daily. *Among 25 patients allocated sofosbuvir + RBV, 10 had GT1a HCV, 9 had GT1b, 2 had GT2, 2 had GT3, and 2 had GT4. Afdhal N, et al. EASL 2014. Abstract O68. Sofosbuvir + RBV in Pts With Cirrhosis and Portal HTN: On-Tx Virologic Response HCV RNA < LLOQ (%) 80 60 100 100 100 94* 100 100 94 93 75 56 44 CTP A CTP B 40 20 n/N = 0 5/9 7/16 Wk 2 9/9 12/16 Wk 4 *1 patient with nonresponse at Wk 8. Afdhal N, et al. EASL 2014. Abstract O68. 8/8 15/16 Wk 8 8/8 15/16 Wk 12 7/7 14/15 Wk 24 Sofosbuvir + RBV in Pts With Cirrhosis/ Portal HTN: Disease Marker Changes SOF + RBV (n = 25) 20 15 10 5 0 -5 -10 -15 Platelets (103/µL) P = .003 17 P = NS Albumin (g/dL) P = .001 1 -1 -9 CTP A Observation 24 wks (n = 25) 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 CTP B P = .001 0.5 0.4 13 20 0 0 -20 -40 0 -0.1 CTP A -60 -80 -72 CTP B Ascites Clinical Events, n ALT (U/L) -75 CTP B CTP A Hepatic Encephalopathy SOF + RBV (n = 25) Observation (n = 25) SOF + RBV (n = 25) Observation (n = 25) Baseline 6 9 5 2 Wk 12 5 8 3 3 Wk 24 0 7 0 4 Afdhal N, et al. EASL 2014. Abstract O68. Sofosbuvir/Ledipasvir Oral, once-daily fixed-dose combination of nucleotide NS5B polymerase inhibitor and NS5A inhibitor Sofosbuvir: potent antiviral activity; pangenotypic Ledipasvir: potent antiviral activity against GT1a, 1b, 4a, 5a, 6a Combination has high barrier to resistance Pharmacology profile Clinically significant drug interactions include with P-gp inducers No clinically significant drug interactions with tacrolimus or cyclosporine Approved for treatment of GT1 HCV Sofosbuvir/ledipasvir [package insert]. Sofosbuvir/Ledipasvir 400/90 mg: Prescribing Information for GT1 HCV Patient Population Recommended Treatment Duration, Wks Treatment naive with or without cirrhosis 12* Treatment experienced† without cirrhosis 12 Treatment experienced† with cirrhosis 24 *8-wk duration can be considered in treatment-naive patients without cirrhosis who have pretreatment HCV RNA < 6 million IU/mL. †Treatment-experienced patients who have experienced treatment failure with either pegIFN/RBV or an HCV PI plus pegIFN/RBV. Sofosbuvir/ledipasvir [package insert]. ION-1: SOF/LDV FDC ± RBV for 12 or 24 Wks in Treatment-Naive GT1 Patients Open-label phase III trial[1,2] 15% to 17% of participants had cirrhosis No upper age or BMI limit; platelet count ≥ 50,000/mm3, no neutrophil min Wk 12 Stratified by HCV subtype (1a vs 1b) and cirrhosis Wk 24 SOF/LDV (n = 214) Treatment-naive pts with GT1 HCV (N = 865) SOF/LDV + RBV (n = 217) SOF/LDV (n = 217) SOF/LDV + RBV (n = 217) Sofosbuvir/ledipasvir 400/90 mg FDC tablet once daily; weight-based RBV 1000-1200 mg/day. Afdhal N, et al. N Engl J Med. 2014;370:1889-1898. ION-1: SVR12 According to Cirrhosis Status 100 100 97 100 100 99.5 96.9 100 100 SVR12 (%) 80 No cirrhosis Cirrhosis 60 40 20 n/N = 0 179/ 179 32/ 33 SOF/LDV 178/ 178 33/ 33 SOF/LDV + RBV 12 Wks 181/ 182 31/ 32 SOF/LDV 179/ 179 36/ 36 SOF/LDV + RBV 24 Wks SVR12 rates did not differ by GT1a vs GT1b in any treatment arm Afdhal N, et al. N Engl J Med. 2014;370:1889-1898. ION-2: SOF/LDV FDC ± RBV for 12 or 24 Wks in Tx-Experienced GT1 Pts Open-label phase III trial 20% of participants had cirrhosis, 41% to 46% were previous nonresponders, and 46% to 61% had experienced PI failure No upper age or BMI limit; platelet count ≥ 50,000/mm3, no neutrophil min Stratified by HCV subtype (1a vs 1b), cirrhosis, and previous Tx response Wk 12 Wk 24 SOF/LDV (n = 109) Tx-experienced pts with GT1 HCV (N = 440) SOF/LDV + RBV (n = 111) SOF/LDV (n = 109) SOF/LDV + RBV (n = 111) Sofosbuvir/ledipasvir 400/90 mg FDC tablet once daily; weight-based RBV 1000-1200 mg/day. Afdhal N, et al. N Engl J Med. 2014;370:1483-1493. ION-2: SVR12 According to Cirrhosis Status 100 95 86 100 82 99 100 99 100 SVR12 (%) 80 60 No cirrhosis Cirrhosis 40 20 n/N = 0 83/ 87 19/ 22 SOF/LDV 89/ 89 18/ 22 SOF/LDV + RBV 12 Wks 86/ 87 22/ 22 SOF/LDV 88/ 89 22/ 22 SOF/LDV + RBV 24 Wks Absence of cirrhosis was significantly associated with SVR12 in multivariate exact logistic regression model (OR: 5.1; P = .012) Afdhal N, et al. N Engl J Med. 2014;370:1483-1493. Pooled Efficacy/Safety Analysis of Sofosbuvir/Ledipasvir in Cirrhosis Pooled analysis of GT1 HCV–infected pts with cirrhosis from phase II and III trials of sofosbuvir/ledipasvir ± RBV for 12-24 wks Baseline Characteristic, n (%) GT1, Cirrhosis (N = 514) Tx experienced 353 (69) HCV subgenotype 1a 307 (60) Non-CC IL28B Safety similar to that observed in pts without cirrhosis 405 (79) Initiated Tx with albumin < 3.5 g/dL 59 (11) 3 Initiated Tx with platelet < 90,000 91 (18)observed AEs morecount frequent in ptscells/mm treated with RBV; no other AE or SAE trends SVR12 rate in 284 pts with available data: 95% Bourlière M, et al. AASLD 2014. Abstract 82. Note that these data were available in abstract form only at the time of drafting this slideset and are subject to change at the AASLD 2014 presentation. Opportunities and Challenges With Current Therapies in GT1 Cirrhosis Higher SVR rates in GT1 HCV with compensated cirrhosis with just 12 wks of therapy with sofosbuvir + pegIFN/RBV than with first-generation protease inhibitors No adjustment of sofosbuvir required Adverse effects of pegIFN/RBV still problematic in cirrhotics All oral therapy now available for patients with GT1 HCV with 2 different regimens Sofosbuvir/ledipasvir Sofosbuvir + simprevir ± RBV Based on limited data in F3/F4 disease (39 patients) Viral suppression associated with clinical improvement Current AASLD/IDSA Guidance: Genotype 2/3 Genotype 2 Genotype 3 Recommended Sofosbuvir 400 mg/day + weight- Sofosbuvir 400 mg/day + weightbased RBV 1000-1200 mg/day based RBV 1000-1200 mg/day for for 12 wks* 24 wks Alternative (if IFN eligible) Previous nonresponders only: Sofosbuvir 400 mg/day + weightSofosbuvir 400 mg/day + weightbased RBV 1000-1200 mg/day + based RBV 1000-1200 mg/day + wkly pegIFN for 12 wks wkly pegIFN for 12 wks *Previous nonresponders to pegIFN/RBV with cirrhosis may benefit from extending treatment to 16 wks. AASLD/IDSA HCV Management Guidance. October 2014. FISSION: Sofosbuvir + RBV vs pegIFN/ RBV in Tx-Naive GT2/3 HCV Patients Randomized, controlled, open-label phase III noninferiority trial – 20% to 21% had cirrhosis; 71% to 72% had GT3 HCV Stratified by HCV GT (2 vs 3), HCV RNA (< vs ≥ 106 IU/mL), cirrhosis (yes vs no) Treatment-naive patients with GT2/3 HCV (N = 499) Wk 12 Sofosbuvir 400 mg/day + RBV 1000-1200 mg/day (n = 256) PegIFN alfa-2a 180 µg/wk + RBV 800 mg/day (n = 243) Lawitz E, et al. N Engl J Med. 2013;368:1878-1887. Wk 24 FISSION: SVR12 According to Genotype and Fibrosis Level Sofosbuvir + RBV 100 PegIFN + RBV 98 91 82 SVR12 (%) 80 71 62 61 60 40 34 30 20 n/N = 0 58/59 44/54 No cirrhosis 10/11 Cirrhosis Genotype 2 Gane E, et al. EASL 2013. Abstract 5. 8/13 89/145 99/139 No cirrhosis 13/38 11/37 Cirrhosis Genotype 3 FUSION: Sofosbuvir + RBV for 12 or 16 Wks in Tx-Experienced GT 2/3 HCV Pts Randomized, double-blind, placebo-controlled phase III trial – 62% to 64% had GT3 HCV, 33% to 35% had cirrhosis, 74% to 76% were previous relapsers Stratified by HCV GT (2 vs 3), cirrhosis (yes vs no) Tx-experienced pts with GT2/3 HCV (N = 201) Wk 12 Sofosbuvir 400 mg/day + RBV 1000-1200 mg/day (n = 103) Placebo Sofosbuvir 400 mg/day + RBV 1000-1200 mg/day (n = 98) Jacobson IM, et al. N Engl J Med. 2013;368:1867-1877. Wk 16 FUSION: SVR12 According to Genotype and Fibrosis Level Sofosbuvir + RBV 12 wks 96 100 100 100 78 60 60 80 SVR12 (%) SVR12 (%) 80 40 63 n/N = 25/ 26 23/ 23 6/10 40 7/9 No cirrhosis Cirrhosis Genotype 2 61 60 37 19 20 20 0 Sofosbuvir + RBV 16 wks 0 Jacobson IM, et al. N Engl J Med. 2013;368:1867-1877. 14/ 38 25/ 40 5/26 14/ 23 No cirrhosis Cirrhosis Genotype 3 VALENCE: Sofosbuvir + RBV for 12 or 24 Wks in Naive and Exp’d GT2/3 HCV Pts Phase III study in Europe 21% had cirrhosis, 58% previously treated with IFN-based therapy Original protocol amended to lengthen treatment for all GT3 pts when emerging data suggested benefit of additional treatment for this group* Wk 12 GT2 HCV-infected Tx-naive or exp’d pts (N = 323) GT3 Wk 24 Sofosbuvir 400 mg/day + RBV 1000 mg or 1200 mg/day (n = 73) Sofosbuvir 400 mg/day + RBV 1000 mg or 1200 mg/day (n = 250) *Small number of GT3 pts (n = 11) who had already completed 12 wks at time of protocol amendment were included in safety analysis with GT2 but analyzed separately for efficacy. Pts randomized to placebo in original protocol offered alternative treatment protocol. Zeuzem S, et al. N Engl J Med. 2014;370:1993-2001. VALENCE: SVR12 GT2 12-Wk Treatment (n = 73) 100 97 100 100 94 78 60 40 92 87 62 60 40 20 20 n/N = 0 95 80 SVR12 (%) 80 SVR12 (%) GT3 24-Wk Treatment (n = 250) 29/30 2/2 30/32 7/9 Naive, Naive, Exp’d Exp’d, Noncirrhotic Cirrhotic Noncirrhotic Cirrhotic n/N = 0 87/92 Zeuzem S, et al. N Engl J Med. 2014;370:1993-2001. 85/98 29/47 Naive, Naive, Exp’d Exp’d, Noncirrhotic Cirrhotic Noncirrhotic Cirrhotic No increase in AEs seen with longer duration treatment AEs consistent with RBV 12/13 LONESTAR-2: Sofosbuvir + P/R for 12 Wks in Treatment-Exp’d GT2/3 HCV Pts Single-arm trial of pts with treatment failure on P/R Approximately 50% with compensated cirrhosis No cirrhosis 100 93 100 Wk 12 Sofosbuvir 400 mg/day + PegIFN 180 µg once wkly + RBV 1000 mg or 1200 mg/day 83 10/ 12 10/ 12 60 40 20 n/N = 0 Lawitz E, et al. AASLD 2013. Abstract LB-4. 83 80 SVR12 (%) Pts with GT2 or GT3 HCV and previous treatment failure with P/R (N = 47) Cirrhosis 9/ 9 GT2 13/ 14 GT3 Anticipated Changes in HCV Therapy All-oral regimens will be the standard of care by end of 2014 for all genotypes Excellent efficacy in pts with compensated cirrhosis More data required in pts with decompensated cirrhosis On-Treatment Monitoring: GT1 With Cirrhosis Safety data from phase II/III studies suggest no difference in monitoring required for patients with CTP class A cirrhosis Assessments for drug-related adverse events should be conducted more frequently if clinically indicated (eg, CBC count for patients receiving RBV) Treatment Wk 4 8 12/EOT 16* 20* 24* CBC X X X X X X Creatinine X X X X X X Calculated GFR X X X X X X Hepatic fxn panel X X X X X X TSH (with IFN) HCV RNA X X X X X *If using a 24-wk treatment option. AASLD/IDSA HCV Management Guidance. October 2014. SVR 12 X On-Treatment Monitoring: GT2 With Cirrhosis Safety data from phase II/III studies suggest no difference in monitoring required for patients with CTP class A cirrhosis Assessments for drug-related adverse events should be conducted more frequently if clinically indicated (eg, CBC count for patients receiving RBV) Treatment Wk 4 8 12/EOT 16* CBC X X X X Creatinine X X X X Calculated GFR X X X X Hepatic fxn panel X X X X TSH (with IFN) HCV RNA SVR 12 X X X *Previous nonresponders to pegIFN/RBV with cirrhosis may benefit from extending treatment to 16 wks. AASLD/IDSA HCV Management Guidance. October 2014. X On-Treatment Monitoring: GT3 With Cirrhosis Safety data from phase II/III studies suggest no difference in monitoring required for patients with CTP class A cirrhosis Assessments for drug-related adverse events should be conducted more frequently if clinically indicated (eg, CBC count for patients receiving RBV) Treatment Wk 4 8 12 16 20 24/EOT CBC X X X X X X Creatinine X X X X X X Calculated GFR X X X X X X Hepatic fxn panel X X X X X X TSH (with IFN) HCV RNA X X X X X AASLD/IDSA HCV Management Guidance. October 2014. SVR 12 X Triple DAA Therapy With Paritaprevir/ Ritonavir/Ombitasvir + Dasabuvir + RBV Paritaprevir is a potent NS3/4A protease inhibitor Ritonavir boosting of paritaprevir increases the peak, trough, and overall drug exposures of paritaprevir to enable once-daily dosing Ombitasvir is a potent NS5A inhibitor Dasabuvir is a nonnucleoside NS5B polymerase inhibitor TURQUOISE II: Paritaprevir/RTV/Ombitasvir + Dasabuvir + RBV in Cirrhotic GT1 Pts Open-label phase III trial Inclusion criteria: GT1, compensated cirrhosis (CTP class A), DAA naive, radiographic ascites and varices permitted, serum albumin ≥ 2.8 g/dL, total bilirubin < 3 mg/dL, serum AFP ≤ 100 ng/mL, INR ≤ 2.3, platelets ≥ 60,000 cells/mL Wk 12 DAA-naive cirrhotic pts with GT1 HCV (N = 380) Paritaprevir/RTV/Ombitasvir + Dasabuvir + RBV (n = 208) Paritaprevir/RTV/Ombitasvir + Dasabuvir + RBV (n = 172) Paritaprevir/RTV/ombitasvir 150/100/25 mg once daily; dasabuvir 250 mg twice daily; RBV 1000-1200 mg/day. Poordad F, et al . N Engl J Med. 2014;370:1973-1982. Wk 24 TURQUOISE-II: ITT SVR12 P = .09 100 92 96 SVR12 (%) Noninferiority threshold: 43%[1] High SVR12 rates regardless of sex, age, 80 BMI, or baseline HCV RNA in subgroup analyses[2] 60 Pts with platelet counts 40 20 n/N = 0 Superiority threshold: 54%[1] 191/208 165/172 12 wks 24 wks < 100,000/mm3: 89% to 97% Pts with serum albumin < 3.5 g/dL: 84% to 89% Paritaprevir/RTV/Ombitasvir + Dasabuvir + RBV 1. Poordad F, et al. N Engl J Med. 2014;370:1973-1982. 2. Fried MW, et al. AASLD 2014. Abstract 81. Note that these data were available in abstract form only at the time of drafting this slideset and are subject to change at the AASLD 2014 presentation. TURQUOISE II: SVR12 According to GT1 HCV Subtype and Treatment Experience GT1a SVR12 (%) 100 100 100 92.9 80.0 12 wks 24 wks 100 80 80 60 60 40 40 20 20 n/N = 0 92.2 92.9 93.3100 59/ 52/ 64 56 14/ 13/ 15 13 11/ 10/ 11 10 40/ 39/ 50 42 Naive Relapse PR Null Response 0 GT1b 100 100 100 100 85.7100 100 100 22/ 18/ 22 18 25/ 20/ 25 20 6/7 3/3 14/ 10/ 14 10 Naive Relapse PR Null Response Virologic failure in 17/380 pts (4.5%); relapse more frequent with 12-wk vs 24-wk treatment (12 vs 1 pt), 7/12 relapsers by posttreatment Wk 12 were GT1a null responders Poordad F, et al. N Engl J Med. 2014;370:1973-1982. TURQUOISE-II: Laboratory Abnormalities Event 12-Wk Arm (n = 208) 24-Wk Arm (n = 172) ALT > 5 x ULN, % 2.9 0 Total bilirubin > 3 x ULN, % 13.5 5.2 < 10 g/dL 7.2 11.0 < 8.0 g/dL 1.4 0.6 Hemoglobin, % ALT elevation – Asymptomatic, transient, and improved or resolved with ongoing study drug dosing Bilirubin elevation – Transient, predominantly indirect, no discontinuations due to hyperbilirubinemia Hemoglobin decrease – Managed with reduction of ribavirin dose in 34 pts (8.9%) Poordad F, et al. EASL 2014. Abstract O163. Poordad F, et al. N Engl J Med. 2014;370:1973-1982. GT1 HCV SVR Summary: Treatment-Naive Patients With Cirrhosis 100 100 COSMOS[1] 100 100 ION-1[2] 100 97 TURQUOISE-II[3] 100 97 94 95 80 67 SVR (%) 60 40 20 n/N = 0 2/3 6/6 6/6 3/3 32/33 33/33 31/32 36/36 81/86 70/74 SOF + SMV 12 Wks SOF + SMV + RBV 12 Wks SOF + SMV 24 Wks SOF + SMV + RBV 24 Wks SOF/ LDV 12 Wks SOF/ LDV + RBV 12 Wks SOF/ LDV 24 Wks SOF/ LDV + RBV 24 Wks 3DAA + RBV 12 Wks 3DAA + RBV 24 Wks 1. Lawitz E, et al. Lancet. 2014;[Epub ahead of print]. 2. Afdhal N, et al. N Engl J Med. 2014;370:18891898. 3. Poordad F, et al. N Engl J Med. 2014;370:1973-1982. GT1 HCV SVR Summary: TreatmentExperienced Patients With Cirrhosis 100 COSMOS[1] 100 90 100 ION-2[2] 86 80 TURQUOISE-II[3] 100 100 97 90 82 SVR (%) 80 60 40 20 n/N = 0 4/4 4/5 4/4 SOF + SMV 12 Wks SOF + SMV + RBV 12 Wks SOF + SMV 24 Wks 9/ 10 SOF + SMV + RBV 24 Wks 19/ 22 SOF/ LDV 12 Wks 18/ 22 SOF/ LDV + RBV 12 Wks 22/ 22 22/ 22 110/ 122 95/ 98 SOF/ LDV 24 Wks SOF/ LDV + RBV 24 Wks 3DAA + RBV 12 Wks 3DAA + RBV 24 Wks 1. Lawitz E, et al. Lancet. 2014;[Epub ahead of print]. 2. Afdhal N, et al. N Engl J Med. 2014;370:14831493. 3. Poordad F, et al. N Engl J Med. 2014;370:1973-1982. ELECTRON 2: SOF/LDV FDC ± RBV in Diverse Hard-to-Treat Patients Partially randomized, open-label phase II trial Wk 12 GT1 and CTP class B cirrhosis (N = 20) SOF/LDV FDC (n = 20) SVR12: 65% (13/20); 7 relapses Sofosbuvir/ledipasvir 400/90 mg FDC tablet once daily; weight-based RBV 1000-1200 mg/day Laboratory Parameter GT1, CTP Class B Median total bilirubin, mg/dL (range) 1.5 (0.7-3.7) Median serum albumin, g/dL (range) 3.1 (2.3-3.8) Median INR (range) 1.2 (1.0-3.0) Ascites, n (%) 4 (20) Hepatic encephalopathy, n (%) 6 (20) Median platelet count, 103/µL (range) Gane EJ, et al. EASL 2014. Abstract O6. 84 (44-162) Sofosbuvir/Ledipasvir + RBV in Patients With Decompensated Cirrhosis Study population: GT 1 or 4 HCV infection, Tx naive or experienced, CTP B (n = 55) or C (n = 53) decompensated cirrhosis Treatment: 12 or 24 wks of sofosbuvir/ledipasvir plus RBV (escalating doses beginning at 600 mg/day) Tx-emergent SAEs occurred in 28 patients (26%) 4 SAEs in 4 pts deemed related to study treatment: anemia, decreased hemoglobin, hepatic encephalopathy, peritoneal hemorrhage Most common AEs: fatigue, nausea, headache SVR4 rates among patients with available data CTP B: 89% with 12 wks, 92% with 24 wks CTP C: 91% with 12 wks, 33% with 24 wks (based on 3 pts) Flamm SL, et al. AASLD 2014. Abstract 239. Note that these data were available in abstract form only at the time of drafting this slideset and are subject to change at the AASLD 2014 presentation. AI444-040: Sofosbuvir + Daclatasvir ± RBV for GT3 HCV Pts Randomized, open-label phase IIa study 14% of patients with GT2/3 HCV had cirrhosis (specific number for GT3 not reported) Wk 24 Tx-naive pts with GT3 HCV (N = 18) Daclatasvir 60 mg QD + Sofosbuvir 400 mg QD* (n = 13) Daclatasvir 60 mg QD + Sofosbuvir 400 mg QD + RBV 1000 mg or 1200 mg/day (n = 5) *7 patients received 4-week lead-in with sofosbuvir 400 mg QD alone before addition of daclatasvir. Sulkowski MS, et al. N Engl J Med. 2014;370:211-221. AI444-040: SVR12 in GT3 by Treatment Arm 100 100 Daclatasvir + sofosbuvir Daclatasvir + sofosbuvir + RBV 85 SVR12 (%) 80 60 40 20 n/N = 11/13 5/5 0 All GT3 Pts (Including Pts With Cirrhosis) A potential option for cirrhotic GT3 pts, more data required in cirrhotic nonresponders Sulkowski MS, et al. N Engl J Med. 2014;370:211-221. Management of HCV With Cirrhosis: Summary All oral therapies for patients with GT1 HCV infection approved in 2014 > 90% SVR rate, 12- to 24-wk duration Cirrhosis: some treatment-experienced patients require 24 wks of treatment Interferon not required RBV-free therapies now available More data needed in decompensated liver disease GT2: High SVR rates regardless of cirrhosis GT3: High SVR rates in treatment-naive patients Additional strategies needed for cirrhotic nonresponders