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EASL Highlights 2017
Jürgen Rockstroh Department of Medicine I
University Hospital Bonn, Bonn, Germany
13th International Workshop on
Coinfection HIV & Hepatitis,
Wednesday 21st June 2017, Lisbon,
Portugal
• Honoraria for lectures and/or consultancies from Abbott,
AbbVie, Bionor, BMS, Cipla, Gilead, Janssen, Merck,
Roche, ViiV.
• Research grants from Dt. Leberstiftung, DZIF, NEAT ID.
Conflict of Interest: JKR
EASL 2017
» WHO global hepatitis report
» New EASL HBV guidelines
» TDF TAF
» HBV cure agenda
» HBV reactivation under DAA therapy
» HCC risk following DAA therapy
» DAA therapy in children
» HCV therapy in real-life cohorts
» New DAAs
» Treatment of HCV patients after DAA failure
» HCV elimination studies
Seite 3
STATUS OF HEPATITIS B HBV
Sources – WHO (LSHTM)
Prevalence: 257 million people living with HBV
68% in Africa /Western Pacific
Incidence: Chronic HBV infection in children under 5 reduced from 4.7% to 1.3% (immunization)
Incidence: 1.75 million new infections / year (Unsafe health care and injection drug use)
Prevalence: 71 million infected, all regions
STATUS OF HEPATITIS C HCV
Sources – WHO (Center for Disease Analysis )
HEPATITIS MORTALITY IS INCREASING
Sources – WHO Global Health Estimates
HBV HCV HAV HEV
0
0.5
1
1.5
2
2000 2005 2010 2015
Mill
ion
s o
f d
eath
s
Year
96% hepatitis deaths from HBV and HCV (cirrhosis and hepatocellular carcinoma)
Hepatitis
Tuberculosis
HIV
Malaria
1.34 million deaths in 2015
EASL 2017
Seite 7
Do we really need all
this complexity?
EASL HBV Guidelines 2017
HBV
Seite 9
HBV
Seite 10
HBV
Seite 11
LDV/SOF for 12 weeks in patients with HCV/HBV coinfection 111 HCV GT 1 and 43 HCV GT 2 Patients were enrolled
67% Treatment naïve, non cirrhotics 85%
All but one HBeAg negative
No patients experienced clinical signs or symptoms of HBV reactivation
63% (70/111) of pts had asymptomatic HBV DNA reactivation
No patient had AEs of jaundice, liver decompensation, liver failure, or LT
Multivariate analysis: Factors associated with HBV clinical reactivation (>1 log10 ↑ in HBV DNA and ALT >2x ULN)
Mean (range) No (n=106) Yes (n=5) p-value
BL ALT, U/L 64
(17–281) 149
(40–228) 0.0032
BL HBV DNA, log10IU/mL 2.05
(1.28–5.83)
2.97 (1.54–5.46)
0.0188
Liu C-J, et al. EASL 2017, Amsterdam. #PS-098
Risk of HBV reactivation in chronic HBsAg +ve patients during DAAs therapy for HCV : A Phase 3 Study in Taiwan
A) Patient with tumor size < 2.5 cm and without history of prior HCC recurrences; B) Patient without tumor size < 2.5 cm and with history of prior HCC recurrences; C) Patient with tumor size < 2.5 cm and without history of prior HCC recurrences; D) Patient with tumor size > 2.5 cm and history of prior HCC recurrences.
Cabibbo G et al. EASL 2017, Poster THU-096
Risk of Hepatocellular Carcinoma (HCC) recurrence in HCV cirrhotic patients treated with DAAs.
HCC recurrence following SVR
RR non adjusted RR adjusted IC 95 % P value
Average follow-up 0,86 0,79 0,55-1,15 0,19
Average Age 1,11 1,11 0,96-1,27 0,14
Treatment 1,36 0,62 0,11-3,45 0,56
Hagihara, 2011
0,05
HCC recurrence rate/100 personne-years
Authors, year ES (IC 95 %) Weight, %
50
Kanogawa, 2015
Kunimoto, 2016
Jeong, 2007
Saito, 2014
Sanefuji, 2009
Minami, 2016
Global (I-squared = 0,0 %, p = 0,638)
9,15 (4,58-18,30)
6,49 (3,49-12,05)
7,87 (4,82-12,84)
13,26 (7,14-24,65)
12,88 (6,14-27,01)
13,33 (4,30-41,34)
8,10 (4,05-16,19)
9,21 (7,18-11,81)
12,90
16,13
25,81
16,13
11,29
4,84
12,90
IFN AAD
Conti, 2016
Authors, year
Pol CO22, 2016
Pol CO12, 2016
Pol CO23, 2016
Reig, 2016
Rinaldi, 2016
Minami, 2016
Torres, 2016
Zavaglia, 2016
Lei-Zeng, 2016
Global (I-squared = 89,1 %, p = 0,000)
0,05
HCC recurrence rate /100 personne-years
50 100
45,82 (28,49-73,71)
8,11 (5,43-12,10)
4,40 (0,62-31,20)
2,82 (1,35-5,92)
54,24 (33,23-88,53)
26,67 (3,76-189,31)
20,98 (9,43-46,70)
0,07 (0,00-2,28e+07)
1,42 (0,20-10,07)
0,08 (0,00-2,60e+07)
12,14 (5,00-29,46)
14,96
15,15
8,86
14,10
14,92
8,86
13,87
0,20
8,86
0,20
ES (IC 95 %) Weight, %
HCC Risk after DAAs treatments : meta-analysis
Meta regression of HCC recurrence
Waziry R et al. EASL 2017, Abs. PS-160
Occurrence of HCC in patients with HCV related liver disease treated with DAAs
• RESIST-HCV: Prospective Sicilian cohort
– 2466 patients with cirrhosis + DAA treatment
– Liver US every 6 months 14 month observation period after starting DAAs
• 78 de novo HCCs (3.1%) over median 14 months
– SVR, incidence 2.4%; no SVR, incidence, 7.5%
– Within Milan criteria: SVR, 84.4%; no SVR 42.8%
• SVR was not associated with increased risk of HCC nor with more ‘aggressive’ patterns
• Predictors include low albumin (
HCC occurrence following SVR
Meta regression of HCC occurrence
Waziry R et al. EASL 2017, Abs. PS-160
Ogawa, 2013 D’ambrosio, 2011 Bruno, 2009 Mallet, 2006 Cardoso, 2010 Yu, 2006 Hung, 2006 Morgan, 2010 Aleman, 2013 Chenquer, 2010 Moon, 2015 Fernandez-Rodriguez, 2010 Janjua, 2016 Rutter, 2015 Velosa, 2011 Nahon, 2017 Marco, 2016 Global (I-squared = 45,7 %, p = 0,21)
0,01 30
HCC occurrence rate /100 personne-years
3,67 (1,75-7,70) 0,71 (0,23-2,20) 1,74 (0,83-3,64) 0,78 (0,25-2,43) 1,66 (0,75-3,70) 2,04 (1,06-3,93) 2,22 (0,92-5,34) 0,20 (0,05-0,80) 1,03 (0,46-2,29) 0,98 (0,14-6,98) 1,12 (0,16-7,94) 0,99 (0,41-2,37) 0,74 (0,33-1,64) 0,95 (0,48-1,91) 0,36 (0,05-2,56) 0,88 (0,61-1,28) 0,85 (0,41-1,78) 1,14 (0,86-1,52)
7,34 4,41 7,34 4,41 6,78 8,25 6,12 3,27 6,78 1,84 1,84 6,12 6,78 7,83 1,84
11,70 7,34
Authors, year ES (IC 95 %) weight, % IFN
Cardoso, 2016
Conti, 2016
Rinaldi, 2016
Kozbal, 2016
Lei-Zeng, 2016
Romano, 2016
Affronti, 2016
Muir, 2016
Carrat, 2016
Global (I-squared = 78,3 %, p = 0,000)
0,01
HCC occurrence rate/100 personne-years
30
DAA
7,41 (2,78-19,74)
4,51 (2,35-8,67)
10,29 (4,91-21,59)
1,80 (0,97-3,35)
0,04 (0,00-1,30e+07
1,78 (1,22-2,59)
3,33 (1,25)
0,12 (0,02-0,85)
3,30 (2,67-4,08)
3,09 (1,92-4,96)
10,33
13,68
12,74
14,05
0,06
16,55
10,33
4,44
17,83
Unadjusted RR Adjusted RR IC 95 % p
Average follow-up 0,88 0,77 0,62-0,97 0,03
Average age 1,11 1,06 0,99-1,14 0,08
Treatment 2,77 0,75 0,22-2,52 0,62
ES (IC 95 %) weight, %
HCC Risk after DAAs treatments : meta-analysis
LDV/SOF ± RBV in Children 6–11 Years Old
LDV/SOF 45/200 mg tablet; RBV dosed using a weight-based algorithm.
Murray, EASL 2017, PS-101
Open-label study of LDV/SOF (45 mg/ 200 mg) fixed dose combination tablet (once daily) ± RBV (15 mg/kg/day up to 1400 mg/day) for 12 or 24 weeks in children aged 6 to 11 years
LDV/SOF ± RBV n=90
Mean age, y (range) 9 (6–11)
Male, n (%) 53 (59)
White, n (%) 71 (79)
HCV GT 1 / 3 / 4, % 96 / 2 / 2
Mean baseline HCV RNA, log10 IU/mL (range)
6.0 (4.6–7.3)
Treatment experienced, n (%) 18 (20)
Cirrhosis, n (%) 2 (2)
SV
R1
2, %
99 100 100
0
20
40
60
80
100
LDV/SOF12 Wk
LDV/SOF24 Wk
LDV/SOF+RBV24 Wk
86/87 1/1 2/2
1 relapse
Half dose LDV/SOF ± RBV resulted in high SVR12 rates and was well tolerated in 6 to 11 years old patients
Grade 2 AEs: Dental abscess, abdominal pain, gastroenteritis. None
were considered drug related
No treatment DC due to AE
Baseline Demographics SVR12
Real life cohorts
Seite 18
HCV therapy in real life
cohorts shows comparable
SVR rates to clinical trials
with excellent safety results
In vitro:1,2
• High barrier to resistance
• Potent against common NS3 polymorphisms (e.g., positions 80, 155, and 168) and NS5A polymorphisms (e.g., positions 28, 30, 31 and 93)
• Synergistic antiviral activity
Clinical PK & metabolism:
• Once-daily oral dosing with food
• Minimal metabolism and primary biliary excretion
• Negligible renal excretion (
EXPEDITION-1 Study: Objective and Study Design
Objective
» Evaluate the efficacy and safety of G/P for 12 weeks in patients
with HCV GT1, 2, 4, 5 or 6 infection and compensated cirrhosis
Open-label Treatment
G/P is coformulated and dosed once daily as three 100 mg/40 mg pills for a total dose of
300 mg/120 mg.
0 Week 24 Week 36 Week 12
G/P 300 mg/120 mg
N=146
SVR12
assessment
Forns X, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-006.
Patients were enrolled at
40 study sites in Belgium,
Canada, Germany, South
Africa, Spain, and the
United States
EXPEDITION-1 Study:
Baseline Demographics and
Clinical Characteristics
Characteristic 12-week G/P
N = 146 Male, n (%) 90 (62)
Age, median (range), years 60 (26−88)
White race,* n (%) 120 (82)
BMI, median (range), kg/m2 29 (18−55)
HCV genotype, n (%)†
1a 48 (33)
1b 39 (27)
2 34 (23)
4 16 (11)
5 2 (1)
6 7 (5)
Forns X, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-006.
G/P, glecaprevir/pibrentasvir; BMI, body mass index
*Race and ethnicity are self-reported
†Genotype determined by the Versant HCV Genotype Inno-LiPA Assay Version 2.0
EXPEDITION-1 Study:
Baseline Demographics and
Clinical Characteristics (Cont’d)
12-week G/P N = 146
HCV RNA, median (range) log10 IU/mL 6.1 (3.1−7.4)
Treatment-naïve 110 (75)
Treatment-experienced 36 (25)
IFN-based (IFN/pegIFN ± RBV) 25 (69)
SOF-based (SOF + RBV ± pegIFN ) 11 (31)
Platelet count
EXPEDITION-1 Study:
SVR12 by Intent-to-Treat
(ITT) Analysis
Forns X, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-006.
*Patient with HCV GT1a infection relapsed at PTW8 - No treatment-emergent substitutions were present in NS3
- In NS5A, Y93N was present at baseline; Y93N, Q30R and H58D were present at the time of failure
99 100 100 100 100 99
0
20
40
60
80
100
GT1 GT2 GT4 GT5 GT6 Total
% P
atie
nts
wit
h S
VR
12
89
90
31
31
16
16 2
2 7
7
145
146
EXPEDITION-1 Study:
Summary of Adverse
Events (AE)
Event, n (%) 12-week G/P
N=146
Any AE 101 (69)
Any serious AE 11 (8)
DAA-related serious AE 0
Any AE leading to discontinuation of
study drug 0
Death* 1 (0.7)
Common AEs (occurring in ≥10% of patients)
Fatigue 28 (19)
Headache 20 (14)
Pruritus 14 (10)
HCC 2 (1)
Forns X, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-006.
DAA, direct-acting antiviral; HCC, hepatocellular carcinoma *Patient had a history of hemophilia and died post-treatment due to a cerebral hemorrhage assessed by the investigator as not related to the study drug
EXPEDITION-2 Study:
Objective and Study Design
Objective
EXPEDITION-2 is a phase 3, multi-center global study evaluating
8- or 12-week treatment with G/P in HCV/HIV-1 co-infected adults
without or with compensated cirrhosis, respectively
Study Design
Rockstroh J, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. LBP-522
8-week G/P N=137
(no cirrhosis)
12-week G/P N=16
(with cirrhosis)
SVR12
SVR12
Day
0 Week
8
Week
12
Week
20
Week
24 Post-treatment
Week 24
Open-label
Treatment
EXPEDITION-2 Study:
Efficacy Results
Rockstroh J, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. LBP-522
mITT, modified ITT population, which excludes patients with non-virologic failure.
*One patient achieved SVR4 but as lost to follow-up due to homelessness and did not return for PTW12 visit
• The SVR12 rate in the mITT population of patients with cirrhosis treated for 12 weeks was 93% (14/15); 1 patient with GT3a infection and cirrhosis had on-treatment virologic failure at treatment Week 8:
• NS3: no polymorphisms at baseline; Y56H at failure
• NS5A: A30V at baseline; S24F & M28K at failure; (A30V not detected)
• The SVR12 rate was 100% (136/136) in patients without cirrhosis treated for 8 weeks
99 98 99 99
0
20
40
60
80
100
SVR4 SVR12
% P
atie
nts
Wit
h S
VR
12
ITT
mITT
Breakthrough 1 1
Relapse 0 0
Missing Data 0 1*
Discontinued 1 1
151
153
151
152
150
153 150
151
8
*Endpoint was tested only after 12 weeks of G/P was determined non-inferior to 12 weeks of SOF + DCV
Foster G, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-007.
ENDURANCE-3 Study:
Objective and Study Design
SVR12
Arm B N = 115
Arm A N = 233
Weeks
SVR12
0 12
G/P
20
Treatment Period
(1)
no
n-i
nfe
rio
rity
24
Post-treatment Period
Arm C N = 157 G/P
SOF + DCV SVR12 2:1 R
and
om
ized
(2)
no
n-i
nfe
rio
rity
• Arm C: 8-week treatment duration
• Per discussion with regulatory authorities after phase 2 treatment data became available, an 8 week treatment Arm of G/P was added to the study design • SVR12: Non-inferiority of 8 weeks of G/P compared to 12 weeks of G/P*
Characteristic G/P
12 weeks N = 233
SOF + DCV 12 weeks N = 115
G/P 8 weeks N = 157
Male, n (%) 121 (52) 52 (45) 92 (59)
White race, n (%) 205 (88) 103 (90) 134 (85)
Age, median years (range) 48 (22 – 71) 49 (20 – 70) 47 (20 – 76)
BMI, median kg/m2 (range) 25 (17 – 49) 25 (18 – 42) 26 (18 – 44)
HCV RNA, median log10 IU/mL (range)
6.1 (3.5 – 7.5) 6.0 (3.8 – 7.4) 6.1 (1.2 – 7.6)
History of injection drug use, n (%) 149 (64) 73 (63) 104 (66)
Baseline fibrosis stage, n (%)
F0 – F1 201 (86) 97 (84) 122 (78)
F2 12 (5) 8 (7) 8 (5)
F3 20 (9) 10 (9) 27 (17)
Subtype GT3a, n/N (%)* 226/229 (99) 113/113 (100) 154/155 (99)
Foster G, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-007.
ENDURANCE-3 Study:
Baseline Demographics
and Clinical Characteristics
BMI, body mass index; DCV, daclatasvir; G/P, coformulated glecaprevir/pibrentasvir; GT, genotype; HCV, hepatitis C virus; SOF, sofosbuvir *HCV subtype determined by phylogenetic analysis; N = total number of patients with sequence data available
2:1 randomized Non-randomized
Foster G, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-007.
ENDURANCE-3 Study: Results
SVR12 by Intent-to-Treat (ITT)
Analysis
*Conventional statistical methods were used in multiplicity comparison for determining non-inferiority
Non-inferiority:
• Lower bound of the confidence interval (CI) of the difference in SVR12 must be above -6%* • (1) -1.2% (95% CI -5.6 –
3.1) • (2) -0.4% (97.5% CI -5.4 –
4.6)
• Both G/P treatments met non-inferiority criteria for the primary endpoint
95 97 95
0
20
40
60
80
100
SVR
12
(%
Pat
ien
ts)
Treatment Duration
G/P 12 weeks
SOF + DCV 12 weeks
G/P 8 weeks
222
233
111
115 149
157
(2) non-inferior
(1) non-inferior
Outcome, n (%)
G/P 12 weeks N = 233
SOF + DCV 12 weeks N = 115
G/P 8 weeks N = 157
Sustained virologic response 222 (95) 111 (97) 149 (95)
Virologic Failure
Breakthrough 1 (
SVR12 by baseline polymorphisms, n/N (%)
G/P 12 weeks
SOF + DCV* 12 weeks
G/P 8 weeks
NS3 only 26/26 (100) – 14/15 (93)
NS5A only 35/36 (97) 20/21 (95) 34/36 (94)
NS3 + NS5A 6/7 (86) – 5/7† (71)
None 151/153 (99) 89/89 (100) 94/95 (99)
2:1 randomized Non-randomized
Foster G, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. GS-007.
ENDURANCE-3 Study:
Resistance Analysis
» Overall, 97% (mITT analysis; 371/381) of GT3 infected patients receiving G/P achieved
SVR12
» 3% of patients (n = 10) had virologic failure
Common baseline polymorphisms: NS3 A166S‡ (n = 3); NS5A A30K‡ (n=5)
Common substitutions at failure: A30K+Y93H (n = 5); confers 69-fold resistance to PIB
G/P for 8 weeks: 5/5 (100%) patients with Y93H at baseline achieved SVR12
Patients that prematurely discontinued treatment or were lost to follow-up were not included in the analysis Polymorphisms detected by next-gen sequencing using 15% detection threshold at amino acid positions: NS3: 36, 56, 80, 155, 156, 166, 168; NS5A: 24, 28, 29, 30, 31, 32, 58, 92, 93 *NS3 sequences of samples were not determined †One patient who had virologic failure had poor adherence and baseline polymorphisms in both NS3 and NS5A ‡Does not confer resistance to GLE or PIB
Poordad F, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. PS-156.
MAGELLAN-1, Part 2 Study:
Results: SVR12 by DAA
Class in Prior Therapy Overall SVR12:
» 12-week: 89% (39/44)
» 1 OTVF; 4 relapse
» 16-week: 91% (43/47)
» 1 OTVF; 0 relapse
Prior Treatment History
» PI: TVR, SMV, BOC
» NS5A: LDV, DCV
» NS5A+PI: OBV and PTV,
or other combinations
» OTVF, on-treatment
virologic failure
100 88 79 100 94 81
0
20
40
60
80
100
SVR
12
(%
Pat
ien
ts)
Prior DAA PI NS5A PI+ PI NS5A PI+
Class only only NS5A only
only NS5A
Regimen G/P: 12 weeks G/P: 16 weeks
14
14 14
16
11
14
13
13
17
18
13
16
Pangenotypic Single Tablet Regimen
(STR) with Inhibitors of HCV NS5B
(Nucleotide) + NS5A + NS3
Sofosbuvir (SOF)/Velpatasvir (VEL)
» SOF: Nucleoside polymerase inhibitor
with activity against HCV GT 1-6
» VEL: Potent pangenotypic
NS5A inhibitor
Voxilaprevir (VOX)
» HCV NS3/4A Pl with potent antiviral
activity against GT 1-6, including
most RASs
SOF/VEL/VOX
» Once daily, oral, fixed-dose
combination (400/100/100 mg) for GT
1-6
Bourlière M, et al. 67th AASLD; Boston, MA; November 11-15, 2016; Abst. 194.
VEL NS5A inhibitor
SOF Nucleotide polymerase
inhibitor
VOX NS3/4A protease inhibitor
VEL NS5A inhibitor
SOF Nucleotide polymerase
inhibitor
VOX NS3/4A protease inhibitor
Efficacy of SOF/VEL/VOX for 12
Weeks in DAA-Experienced Patients
Breakthrough 1* 1 1 0 0 0 0 0 0 0
Relapse 7 2 2 0 0 4 1 0 0 0
Other 6 3 2 1 0 2 1 0 0 0
*Patient had drug levels consistent with nonadherence.
Roberts, EASL 2017, SAT-280
Integrated Efficacy Analysis of POLARIS-1 and -4
97 97 97 99 100 96 95 100 100 100
0
20
40
60
80
100
SV
R12,
%
GT 4
1
1
431
445
150
155
36
36
126
132
39
41
222
228
Total GT 1
Total
GT 1a GT 1b GT 2 GT 3 GT 5 GT 6 Other
1
1
6
6
68
69
The SVR12 rate was 97% (431/445) in DAA-experienced patients treated with
SOF/VEL/VOX for 12 weeks; Rates were similar regardless of genotype
Resistance Analysis of
SOF/VEL/VOX for 12 Weeks in
DAA-Experienced Patients
Sarrazin, EASL 2017, THU-248
Integrated Resistance Analysis of POLARIS-1 and -4
High SVR12 rates regardless of presence of baseline RASs in DAA-
experienced patients treated with SOF/VEL/VOX for 12 weeks
POLARIS-1:
DAA-experienced patients who had
previously received NS5A inhibitor
POLARIS-4:
DAA-experienced patients who had not
received NS5A inhibitor
4%
NS3 9/248
17%
No RASs 43/248
50%
NS5A 124/248
29%
NS3+NS5A 72/248
97% SVR12
199/205
98% SVR12
42/43
100%
SVR12
83/83
51%
No RASs 86/169 24%
NS5A 40/169
2%
NS3+NS5A 4/169
99%
SVR12
85/86
23%
NS3 39/169
C-SURGE Study:
Grazoprevir + Ruzasvir
+ Uprifosbuvir
» Co-formulated as a fixed-dose combination tablet; administered as 2 tablets once-
daily for a total daily dose of 100 mg grazoprevir (GZR), 60 mg ruzasvir (RZR), and
450 mg of uprifosbuvir (UPR; MK -3682)
» GZR + RZR + UPR has been shown to be effective, safe, and well tolerated for
treatment-naïve and peg-interferon/ribavirin-treatment experienced HCV GT1, 2 and
3-infected persons with SVR rates >90%
Grazoprevir (GZR)
Ruzasvir (RZR)
Uprifosbuvir (UPR)
• HCV NS3/4A protease inhibitor
• 50 mg per tablet
• HCV NS5A inhibitor3
• 30 mg per tablet
• HCV NS5B nucleotide polymerase inhibitor
• 225 mg per tablet
Gane EJ et al., EASL, abstract SAT-139, 2016 Gane EJ et al., AASLD, abstract LB-15, 2015 Tong, et al., J Med Chem 60:290, 2017
C-SURGE Study:
Study Design » This multicenter, open-label trial randomized 94 HCV GT1-infected participants
who relapsed after a regimen of LDV/SOF or EBR/GZR (randomized 1:1;stratified
by GT1a/1b and cirrhosis)
SVR12* 1° Endpoint
GZR:100 mg once-daily; RZR: 60 mg once-daily; UPR: 450 mg once-daily; TW+ treatment week; FW=follow-up week; LDV=ledipasvirl SOF=sofosbuvir. *SVR12 = HCV RNA 105 kg=1400 mg/d). Individuals could not be compensated cirrhotic (platelet cutoff+75,000/μL; excluded Child-Pugh B & C) or non-cirrhotic individuals.
GZR + RZR + UPR + RBV† (16 weeks), n=45
GZR + RZR + UPR (24 weeks), n=49
D1 TW8 TW16 TW24 FW12
Wedemeyer H, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. PS-159.
Wedemeyer D , et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. PS-159.
Demographics 16 Weeks + RBV,
n=44* 24 Weeks without RBV,
n=49 Overall GT1
N=93*
Male, n (%) 37 (84) 43 (88) 80 (86)
Age, median years, (range) 61.0 (33 to 70) 60.0 (25 to 71) 60.0 (25 to 71)
Race, White, n (%) 31 (71) 37 (76) 68 (73)
HCV Genotype 1a, n (%) 40 (91) 40 (82) 80 (86)
Non-cirrhotic, n (%) Cirrhotic, n (%)
25 (57) 19 (43)
27 (55) 21 (43)†
52(56) 40 (43)
NS5A RASs at baseline, n (%)ǂ NS3 RASs at baseline, n (%)ǂ
32 (79) 25 (57)
46 (94) 35 (71)
78 (84) 60 (65)
Baseline HCV RNA >2,000,000 IU/mL, n (%)
29 (66) 33 (67) 62 (67)
Median baseline HCV RNA (log10IU/mL) 6.5 6.4 6.5
Previously failed: 12-24 weeks of LDV/SOF 8 weeks of LDV/SOF 12 weeks of EBR/GZR
26 (59) 9 (20) 9 (20)
31 (63) 5 (10)
13 (27)
57 (61) 14 (15) 22 (24)
* Does not include 1 participant in the 16 week + RBV arm who withdrew prior to beginning treatment. Cirrhosis = Liver biopsy at any time showing cirrhosis, Fibroscan result of >12.5kPa within 12 month of enrollment, or Fibrotest >0.75 and APRI >2 at time of enrollment. † One participant in 24 week arm had unknown cirrhosis status ǂ NS5A RASs = any change from wild-type at 4 positions (28, 30, 31, or 93). NS3 RASs = any change from wild-type at 14 positions (36, 54, 55, 56, 80, 107, 122, 132, 155, 156, 168, 170, or 175). RASs detected by next generation sequencing performed with a 15% sensitivity threshold.
C-SURGE Study:
Demographics
98 100 100 100
0
20
40
60
80
100
16 weeks + RBV 24 weeks (no RBV)
SVR
12
(%
wit
h H
CV
RN
A <
15
IU
/mL;
9
5%
CI)
Full Analysis Set Modified Full Analysis Set
43
44
43
43
*
49
49 49
49
C-SURGE Study:
Efficacy Results
SVR12 = % of participants with HCV RNA
Tolerability 16 Weeks + RBV,
n=44 24 Weeks Without RBV,
n=49 Overall GT1
N=93
One or more AEs, n (%) 40 (91) 39 (80) 79 (85)
Drug-related AE, n (%) 32 (73) 23 (47) 55 (59)
Serious AE, n (%) 1 (2) 4 (8) 5 (5)*
Drug-related serious AE, n (%) 0 (0) 0 (0) 0 (0)
Death, n (%) 0 (0) 0 (0) 0 (0)
Discontinuation due to AE, n (%) 0 (0) 0 (0) 0 (0)
Hemoglobin 5x baseline, n (%) 0 (0) 0 (0) 0 (0)
Late ALT/AST >5x ULN, n (%) 0 (0) 0 (0) 0 (0)
Creatinine grade 2 (1.4-1.8x ULN), n (%) 0 (0) 1 (2) 1 (1)
Most common AEs (>10%), n (%) Fatigue Headache Diarrhea Pruritus Rash
21 (48) 6 (14) 3 (7)
5 (11) 6 (14)
12 (24) 6 (12) 5 (10) 0 (0) 2 (4)
33 (35) 12 (13)
8 (9) 5 (5) 8 (9)
Wedemeyer D , et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. PS-159.
*SAEs all determined by the investigator to be “not drug related” : hospitalization for cervical spine disc herniation; hospitalization for chest pain; hospitalization for dizzinessl; pancreatitis without hospitalization; hospitalization for shoulder cyst surgery
C-SURGE Study:
Adverse Events
-25 0 25 50 75 100
No Treatment
Treat 12,000/year
Current Treatment,Target Cirrhosis
Treat 30,000/year
Current Treatment(25,200 per year)
% of Reduction in Prevalence 2015 to 2020
• Prevalence declining
slightly without
intervention
• Current treatment rate
(25,200 per year) will
lead to 87.1% (73.4 –
93%) reduction in
prevalence by the end
of 2020
• If treatment numbers
decline target will not be
reached
HCV Elimination in Georgia Study:
Impact on Prevalence
Walker J, et al. 52nd EASL; Amsterdam, Netherlands; April 19-23, 2017. Abst. PS-125
Summary
» New EASL HBV guidelines
» For HBV therapy TAF offers a new treatment option with
significant less potential for bone and renal toxicity.
» Of note 20% of all HCV infections globally are estimated to be
diagnosed in 2017. Under consideration of the 2030 goal of 90%
HCV infections diagnosed globally there still is a long way to
go.
» HCV treatment coverage worldwide is still below 10%
emphasizing the need of considerable HCV treatment scale-up
to reach the WHO 80% HCV treatment target in 2030.
» New pangenotypic regimens can be expected which will allow at
least for some combinations shorter treatment durations as well
as offer treatment options who have failed prior DAA therapy
and have 2-drug class resistance
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