FALDAPREVIR PLUS PEGYLATED INTERFERON ALFA-2A AND RIBAVIRIN IN CHRONIC HCV GENOTYPE-1 TREATMENT-NAÏVE PATIENTS FERENCI P 1 , ASSELAH T 2 , FOSTER GR 3 , ZEUZEM S 4 , SARRAZIN C 4 , MORENO C 5 , OUZAN D 6 , MAEVSKAYA M 7 , CALINAS F 8 , MORANO LE 9 , CRESPO J 10 , DUFOURJ -F 11 , BOURLIERE M 12 , AGARWAL K 13 , FORTON D 14 , SCHUCHMANN M 15 , ZEHNTER E 16 , NISHIGUCHI S 17 , OMATA M 18 , STERN J 19 , DATZENKO Y 20 , SCHERER J 19 , QUINSON AM 19 1 Me d i c a l U n i ve r s i t y o f V i e n n a , V i e n n a , A u s t r i a ; 2 H e p a t o l o g y D e p a r t m e n t , B e a u j o n H o s p i t a l , A P - H P , U n i ve r s i t y P a r i s D i d e r o t 7 a n d I N S E R M U 7 7 3 , C R B 3 , C l i c h y, F r a n c e ; 3 Q u e e n Ma r y, U n i ve r s i t y o f L o n d o n , L o n d o n , U K ; 4 JW G o e t h e U n i ve r s i t y H o s p i t a l , F r a n k f u r t , G e r m a n y; 5 H ô p i t a l U n i ve r s i t a i r e E r a s m e , B r u s s e l s , B e l g i u m ; 6 I n s t i t u t A r n a u l t T za n c k , S t L a u r e n t d u V a r , F r a n c e ; 7 F i r s t Mo s c o w S t a t e Me d i c a l U n i ve r s i t y, Mo s c o w, R u s s i a ; 8 C e n t r o H o s p i t a l a r d e L i s b o a C e n t r a l , L i s b o n , P o r t u g a l ; 9 H o s p i t a l Me i xo e i r o , V i g o , S p a i n ; 1 0 H o s p i t a l U n i v. D e V a l d e c i l l a , S a n t a n d e r , S p a i n ; 1 1 U n i ve r s i t ä t s k l i n i k f ü r V i s ze r a l e C h i r u r g i e u n d Me d i zi n , B e r n , S wi t ze r l a n d ; 1 2 H o p i t a l S a i n t J o s e p h , Ma r s e i l l e , F r a n c e ; 1 3 K i n g ' s C o l l e g e H o s p i t a l , L o n d o n , U K ; 1 4 S t G e o r g e ' s H o s p i t a l , L o n d o n , U K ; 1 5 U n i ve r s i t y H o s p i t a l Ma i n z, Ma i n z, G e r m a n y; 1 6 S c h we r p u n k t p r a xi s H e p a t o l o g i e , D o r t m u n d , G e r m a n y; 1 7 H yo g o C o l l e g e o f Me d i c i n e , H yo g o , J a p a n ; 1 8 Y a m a n a s h i C e n t r a l a n d K i t a H o s p i t a l s , Y a m a n a s h i , J a p a n ; 19B o e h r i n g e r I n g e l h e i m P h a r m a c e u t i c a l s I n c , R i d g e f i e l d , C T , U S A ; 20B o e h r i n g e r I n g e l h e i m Pharmaceuticals GmbH & Co KG, Biberach, Germany 1 Introduction to faldaprevir Faldaprevir (FDV; BI 201335) is a potent and selective inhibitor of HCV NS3/4A1 FDV has antiviral activity against HCV genotypes (GT) 1, 2, 4, 5 and 6 in vitro1 The pharmacokinetics of FDV allow oral, once-daily administration High efficacy and favourable tolerability was shown in Phase II studies of FDV in combination with pegylated interferon α2a and ribavirin (PegIFN/RBV)2 2 1. White PW, et al. Antimicrob Agents Chemother 2010;54:4611–4618; 2. Sulkowski et al Hepatology 2013 Jan 28 (epub) Study design PR, pegylated interferon α2a 180 µg/week and weight-based ribavirin Arm 1 ETS Arm 2 (n=261) PR Placebo + PR (n=133) Placebo + PR Observation Period Faldaprevir 120 mg QD + PR PR Faldaprevir 120 mg QD + PR No ETS (n=262) Faldaprevir 240 mg QD + PR Placebo + PR No ETS Day 1 Observation Period Observation Period ETS Arm 3 Observation Period Week 12 PR Week 24 Observation Period Week 48 Patients enrolled from Europe and Japan Eligibility: Treatment naive, GT1 infection, no HBV or HIV coinfection, adult, platelets >90,000 cells/mm3 3 Week 72 Primary endpoint: SVR 12 weeks after completion of all treatment Baseline data Placebo n=132 120 mg FDV n=259 240 mg FDV n=261 Male, n (%) 75 (57) 121 (47) 146 (56) Caucasian, n (%) 103 (78) 203 (78) 205 (79) Region, n (%) Japan Europe 24 (18) 108 (82) 52 (20) 207 (80) 50 (19) 211 (81) Mean age, years (SD) 46.6 (12.53) 47.9 (11.44) 48.3 (11.89) Mean BMI, kg/m2 (SD) 24.6 (4.25) 24.9 (4.21) 25.2 (4.63) 45 (34) 86 (65) 87 (34) 171 (66) 90 (34) 171 (66) 6.4 (3.4–7.7) 6.4 (3.3–7.5) 6.4 (3.0–7.4) Baseline HCV RNA, n (%) ≥800 000 IU/mL 101 (77) 201 (78) 185 (71) IL28B (rs12979860), n (%) CC Non-CC 46 (35) 86 (65) 107 (41) 151 (58) 101 (39) 160 (61) Fibrosis stage, n (%) ≥F3 25 (19) 45 (17) 42 (16) 8 (6) 16 (6) 15 (6) HCV GT-1 subtypea, n (%) 1a 1b Median baseline HCV RNA levels, log10 IU/mL (range) Cirrhosis, n (%) Yes 4 aHCV GT-1 subtype analyses by sequencing of NS3 Primary endpoint SVR12 (ITT) (∆ = 26.7; 95% CI, 17.1–36.3; p<0.0001) (∆ = 28.6; 95% CI, 19.0–38.2; p<0.0001) 100 79 80 SVR12 (%) 80 60 52 40 20 0 5 69/132 204/259 210/261 Placebo FDV 120 mg FDV 240 mg SVR12 rates adjusted for race and genotype ITT, intention-to treat Early Treatment Success, Week 4 HCV RNA Both FDV groups Early Treatment Success (ETS): HCV RNA <25 IU/mL at Week 4 and undetectable at Week 8; patients with ETS in active treatment arms were eligible to stop all treatment at Week 24 No ETS 12% ETS, Week 4 <25 IU/mL, detected 13% 75% 6 ETS, Week 4 undetected SVR12 in patients with ETS (received 24 weeks total treatment duration) Proportion of patients (%) 100 87 89 226/259 233/261 FDV 120 mg FDV 240 mg 89 80 60 40 20 0 ETS 7 86 194/226 FDV 120 mg 208/233 FDV 240 mg ETS + SVR12a ETS, early treatment success: HCV RNA <25 IU/mL (detected or undetected) at Week 4 and <25 IU/mL (undetected) at Week 8. aDenominator = patients with ETS Proportion of patients with SVR (%) SVR12 among ETS patients: BLQ (detected) vs BLD at Week 4 100 80 91 77 72 60 40 20 0 30/39 21/29 155/171 167/178 FDV 120 mg FDV 240 mg FDV 120 mg FDV 240 mg Week 4 ≤25 IU/mL, detected 8 94 Week 4, undetected ETS, early treatment success: HCV RNA <25 IU/mL (detected or undetected) at Week 4 and <25 IU/mL (undetected) at Week 8 SVR12 according to HCV genotype-1 subtype (ITT) 100 84 83 76 80 SVR12 (%) 69 60 60 40 36 20 0 16/45 60/87 68/90 52/86 143/171 142/171 Placebo FDV 120 mg FDV 240 mg Placebo FDV 120 mg FDV 240 mg GT-1a 9 GT-1b Other genotype-1 subtype = one patient in placebo arm and one patient in FDV 240 mg arm. Both achieved SVR12 Virological failure Placebo FDV 120 mg GT-1a 50 40 30 20 10 0 13 10 9 8 11 1 0 Null/partial Breakthrough response 10 18 15 Relapse Proportion of patients (%) Proportion of patients (%) FDV 240 mg GT-1b 50 40 30 20 12 10 0 7 6 4 4 7 6 0 0 Null/partial Breakthrough response Stopping rules: • Null or partial response defined as lack of Early Virological Response, i.e. absence of HCV RNA drop by ≥2 log10 from baseline at Week 12 • Breakthrough indicates confirmed ≥1 log10 rebound at any time during FDV or PegIFN/RBV treatment Relapse No significant effect of Q80K on SVR12 in GT-1a 100 23% (49/212) of GT-1a patients had Q80K at baseline 82 80 75 SVR12 (%) 69 73 60 40 20 0 42/61 FDV 120 mg 56/75 FDV 240 mg Q80 wild type 11 16/22 9/11 FDV 120 mg FDV 240 mg Q80K SVR12 according to IL28B genotype rs12979860 (ITT) 100 90 95 76 80 70 79 69 SVR12 (%) 63 60 51 40 28 20 0 29/46 96/107 96/101 35/68 85/122 87/126 Placebo FDV FDV 120 mg 240 mg Placebo FDV FDV 120 mg 240 mg CC 12 CT 5/18 22/29 27/34 Placebo FDV FDV 120 mg 240 mg TT SVR12 for FDV 120 mg vs 240 mg n/N (%) FDV 120 mg FDV 240 mg 60/87 (69) 143/171 (84) 68/90 (76) 142/171 (83) 157/203 (77) 44/52 (85) 158/205 (77) 47/51 (92) 96/107 (90) 85/122 (70) 22/29 (76) 96/101 (95) 87/126 (69) 27/34 (79) 172/212 (81) 30/45 (67) 9/16 (56) 187/219 (85) 23/42 (55) 6/15 (40) Estimated difference in SVR12 (95% CI) Genotype 1a 1b Race Caucasian Asian IL28B CC CT TT Fibrosis stage <F3 ≥F3 Cirrhosis Baseline HCV RNA <800 000 IU/mL ≥800 000 IU/mL 13 54/58 (93) 150/201 (75) 70/76 (92) 140/185 (76) -100% -80% -60% -40% -20% Favours 120 mg 0 20% 40% 60% 80% 100% Favours 240 mg Adverse event summary N (%) Placebo n=132 120 mg FDV n=259 240 mg FDV n=261 Any AE 123 (93) 251 (97) 253 (97) AEs leading to discontinuation of all medication 5 (4) 10 (4) 14 (5) AEs leading to discontinuation of FDV or PBO only 0 2 (1) 8 (3) 8 (6) 17 (7) 17 (7) 64 (48) 134 (52) 144 (55) 8 (6) 21 (8) 23 (9) Photosensitivity 0 0 2 (1) Gastrointestinal 4 (3) 18 (7) 31 (12) Anaemia 15 (11) 33 (13) 32 (12) Jaundice 0 5 (2) 7 (3) Serious AEs AEs of at least moderate intensitya Rash aDAIDS Grade 2 to 4; protocol defined AEs of special interest 14 DAIDS, Division of AIDS table for grading the severity of adult and pediatric adverse events Rash N (%) N (%) of patients with event* Mild Moderate Severe Potentially life-threatening N (%) of patients who discontinued due to event *All events resolved 15 Placebo n=132 120 mg FDV n=259 240 mg FDV n=261 29 (22) 83 (32) 86 (33) 21 (16) 6 (5) 2 (2) 0 62 (24) 19 (7) 2 (1) 0 63 (24) 21 (8) 2 (1) 0 1 (1) 3 (1) 2 (1) Grade ≥3 lab abnormalities during first 24 weeks of treatment N (%) White blood cells <1,499/mm3 Platelets <49,999/mm3 Neutrophils <749/mm3 Lymphocytes <499/mm3 ALT >5.1 x ULN Total bilirubin >2.6 x ULN 16 Placebo n=132 120 mg FDV n=259 240 mg FDV n=261 4 (3) 10 (4) 11 (4) 4 (3) 4 (2) 7 (3) 24 (18) 53 (20) 31 (12) 15 (11) 49 (19) 48 (18) 4 (3) 5 (2) 2 (1) 1 (1) 29 (12) 138 (53) *Laboratory value categories based on the DAIDS grading system Changes in haemoglobin Placebo FDV 120 mg FDV 240 mg Mean haemoglobin ± SD (g/dL) 18 16 14 12 10 8 0 4 8 12 20 16 24 Weeks N (%) Placebo n=132 120 mg FDV n=259 240 mg FDV n=261 38 (29) 64 (25) 57 (22) Led to permanent RBV D/C 0 (0) 3 (1) 2 (1) Led to RBV dose reduction 32 (24) 44 (17) 39 (15) Received blood transfusion 1 (1) 2 (1) 2 (1) Received EPO 4 (3) 10 (4) 12 (5) Anaemia adverse event 17 Mean bilirubin ± SD (mg/dL) Bilirubin changes over time Total Conjugated bilirubin bilirubin 5 Placebo FDV 120 mg FDV 240 mg 4 3 2 1 0 0 4 8 12 Weeks 18 16 20 24 Summary and conclusions FDV is highly efficacious in European and Japanese patients infected with HCV GT-1 Almost 90% of FDV-treated patients were eligible for shortened treatment The 240 mg dose showed no benefit over 120 mg for any subgroup FDV was well tolerated with few discontinuations due to AEs at both dosages No incremental haemoglobin reduction was observed with FDV and PegIFN/RBV compared with PegIFN/RBV alone Bilirubin elevations were benign and transient 19 Acknowledgements • The patients enrolled in the STARTVerso1 trial • Study investigators: Austria Peter Ferenci Michael Gschwantler Hermann Laferl Andreas Maieron Belgium Jean Delwaide Yves Horsmans Peter Michielsen Christophe Moreno Frederik Nevens Hans Van Vlierberghe France Armand Abergel Tarik Asselah Marc Bourliere Jean-Didier Grangé Dominique Guyader Christophe Hezode Dominique Larrey Victor Ledinghen Philippe Mathurin Sophie Métivier Denis Ouzan Vlad Ratziu Albert Tran Germany Keikawus Arastéh Thomas Berg Johannes Bogner • • 20 Rainer Günther Dieter Häussinger Dietrich Hüppe Dietmar Klass Ansgar Lohse Stefan Mauss Marcus Schuchmann Jürgen Siebler Ulrich Spengler Christian Trautwein Elmar Zehnter Stefan Zeuzem Japan Akihiro Deguchi Yukio Gibo Yuichi Hirose Tatsuya Ide Takafumi Ichida Shogo Iwabuchi Michio Kato Norifumi Kawade Yasuteru Kondo Makoto Kuboki Hitoshi Mochizuki Mitsuhiko Moriyama Kazuyoshi Nagayama Yoichi Nishigaki Shuhei Nishiguchi Kazunori Noguchi Masao Omata Yoshinori Sakai Yoshiyuki Sakai Yasuhito Tanaka Kunihiko Tsuji Yoshiyuki Ueno Hiroshi Yatsuhashi Osamu Yokosuka Hirohito Yoneyama Portugal Filipe Calinas Armando Carvalho Tiago Bana e Costa Guilherme Macedo Leopoldo Matos Célia Oliveira José Presa Luís Tavares Romania Florin Caruntu Emanoil Ceausu Liliana Preotescu Adrian Streinu-Cercel Russia Pavel Bogomolov Marina Maevskaya Vadim Pokrovsky Olga Sagalova Alexey Yakovlev Natalia Zakharova Spain Javier Crespo Moises Diago Jaime Enriquez Luis Enrique Morano Jose Domingo Pedreira Manuel Romero Ricard Solá Vicente Soriano Switzerland Andreas Cerny Jean-François Dufour Daniel Genné Beat Müllhaupt David Semela United Kingdom Kosh Agarwal Jane Collier Fiona Gordon Daniel Forton Graham R. Foster Mark Nelson Stephen Ryder Javier Vilar Mark Wright Alison Uriel Boehringer Ingelheim for sponsoring the study and their clinical and statistical teams for study monitoring, data collection, and analysis Editorial support provided by Katharine Howe of Adelphi Communications Ltd and funded by Boehringer Ingelheim