hepatitis b medications lamivudine (epivir-hbv
TRANSCRIPT
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HEPATITIS B ONLINEwww.hepatitisB.uw.edu
Hepatitis B Medications
Lamivudine (Epivir-HBV)
Prepared by:David H. Spach, MDH. Nina Kim, MD
Last Updated: February 23, 2020
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• Phase 3 Trials- BeHOLD (HBeAg+): ETV versus 3TC in HBeAg-Positive- BeHOLD (HBeAg-): ETV versus 3TC in HBeAg-Negative- GLOBE: Lamivudine versus Telbivudine- PegINF alfa-2a versus Lamvivudine verus Both (HBeAg+)- PegINF alfa-2a versus Lamvivudine verus Both (HBeAg-)- Long-term Lamivudine and Impact on Advanced Fibrosis
Lamivudine (3TC)Summary of Key Studies
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Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD: HBeAg-Positive, Week 48
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Entecavir versus Lamivudine: 48 Week DataBEHoLD (HBeAg-Positive): Study Design
• Background- Phase 3, randomized, double-blind controlled trial - 137 centers in Americas, Asia, Australia, Europe, & Middle East
• Subjects (n = 709)- Age ≥16 years with documented HBeAg-positive- Excluded: prior nucleoside/nucleotide active against HBV >12 weeks- Excluded: coinfection with HIV, HCV, or HDV
• Regimens- Entecavir: 0.5 mg once daily (n = 354)- Lamivudine: 100 mg once daily (n = 355)
• Study End-Points - Primary: hepatic histologic improvement- Secondary: changes in HBV DNA, HBeAg seroconversion,normalization of ALT
Source: Chang TT, et. al. N Engl J Med. 2006;354:1001-10.
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Entecavir: 0.5 mg/day(n = 354)
Lamivudine:100 mg/day(n = 355)
Source: Chang TT, et. al. N Engl J Med. 2006;354:1001-10.
Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Positive): Study Design
48 96Week
Final AnalysisRandomized
0 52
Analysis for Virologic Response
Continuation for Virologic Responders
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Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Positive): Results
Source: Chang TT, et. al. N Engl J Med. 2006;354:1001-10.
HBeAg-Positive Study Participants: Week 48 Treatment Response
67 68
22
2
36
60
20
10
20
40
60
80
100
HBV DNA<300 copies/mL
ALT Normalization Loss of HBeAg Loss of HBsAg
Part
icip
ants
(%)
Entecavir Lamivudine
P = 0.02P < 0.001 P = 0.45 P = 0.52
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Source: Chang TT, et. al. N Engl J Med. 200;354:1001-10.
Entecavir versus Lamivudine: 48 Week DataBEHoLD (HBeAg-Positive): Conclusions
Conclusions: “Among patients with HBeAg-positive chronic hepatitis B,
the rates of histologic, virologic, and biochemical improvement are
significantly higher with entecavir than with lamivudine. The safety profile
of the two agents is similar, and there is no evidence of viral resistance to
entecavir.”
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Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD: HBeAg-Positive, Week 96
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Entecavir versus Lamivudine: 96 Week DataBEHoLD (HBeAg-Positive): Conclusions
• Background- Phase 3, randomized, double-blind controlled trial - 146 centers in Europe, Asia, Americas, Australia & Middle East
• Subjects- N = 715 with chronic HBeAg-positive- Excluded: prior lamivudine therapy x >12 weeks or any prior entecavir- Week 52 “virologic responders” (HBV DNA to <700,000 copies/mL & HBeAg loss): continue blinded treatment to week 96
• Regimens- Entecavir 0.5 mg once daily- Lamivudine 100 mg once daily
• Study End-Points - Virologic Response: HBV DNA level <300 copies/mL- Serologic Response: HBeAg seroconversion, HBsAg loss
Source: Gish RG, et. al. Gastroenterology. 2007;133:1437-44.
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Source: Gish RG, et. al. Gastroenterology. 2007;133:1437-44.
Entecavir versus Lamivudine: 96 Week DataBEHoLD (HBeAg-Positive): Study Design
Entecavir: 0.5 mg/day(n = 354)
Lamivudine:100 mg/day(n = 355)
48 96Week
Final AnalysisRandomized
Entecavir: 0.5 mg/day(n = 243)
Lamivudine:100 mg/day(n = 164)
0 52
Analysis for Virologic Response
Continuation for Virologic Responders
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Entecavir versus Lamivudine: 96 Week DataBEHoLD (HBeAg-Positive): Results
Source: Gish RG, et. al. Gastroenterology. 2007;133:1437-44.
HBeAg-Positive Study Participants: Week 96 Treatment Response
8087
31
2
39
79
26
20
20
40
60
80
100
HBV DNA<300 copies/mL
ALTNormalization
HBeAgSeroconversion
HBsAgSeroconversion
Patie
nts
(%)
Entecavir Lamivudine
P = 0.006P < 0.001
P = NS P = NS
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Source: Gish RG, et. al. Gastroenterology. 2007;133:1437-44.
Entecavir versus Lamivudine: 96 Week DataBEHoLD (HBeAg-Positive): Safety & Adverse Events
Baseline Characteristic Entecavir(n = 354)
Lamivudine(n = 355)
Any adverse event ≥5%, %HeadacheFatigueIncreased ALT levels
1064
857
Serious adverse event, % 8 8
Adverse event leading to discontinuation, no. 1 9
Lab abnormalities, no. (%)Grade 4 ALT (>10x ULN) and >2x baseline 12* (3) 23** (7)
*11 of 12 of these flares resolved within 1-7 weeks. 11 of 12 were also associated with ≥2 log10 decline in HBV DNA**11 of 23 associated with increasing HBV DNA level that preceded or coincided with the flare
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Source: Gish RG, et. al. Gastroenterology. 2007;133:1437-44.
Entecavir versus Lamivudine: 96 Week DataBEHoLD (HBeAg-Positive): Conclusions
Conclusions: “Entecavir treatment through 96 weeks results in continued benefit for patients with HBeAg-positive chronic hepatitis B.”
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Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD: HBeAg-Negative
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Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Negative): Study Design
• Background- Phase 3, randomized double-blind controlled trial- 146 centers in Europe, Asia, Americas, Australia & Middle East
• Subjects- N = 638 with chronic HBeAg-negative- Excluded: prior lamivudine therapy >12 weeks or any prior entecavir
• Regimens- Entecavir 0.5 mg QD (n = 325)- Lamivudine 100 mg QD (n = 313)
• Study End-Points at week 48- Primary: Histologic improvement (≥2 points on Knodellnecroinflammatory score, and no worsening on Knodell fibrosis score)
- Secondary: HBV DNA < 300 copies/ml; decrease in Ishak fibrosisscore; normalization of ALT
Source: Lai C, et. al. N Engl J Med. 2006;354:1011-20.
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Entecavir: 0.5 mg/day(n = 325)
Lamivudine:100 mg/day(n = 313)
Key Participant Features
• HBeAg-negative (n = 638)
• Compensated liver disease
• HBV DNA 0.7 MEq/mL by bDNA assay
• ALT 1.3-10 x ULN
Week 48Randomized
Source: Lai C, et. al. N Engl J Med. 2006;354:1011-21.
Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Negative): Study Design
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Source: Lai C, et. al. N Engl J Med. 2006;354:1011-21.
Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Negative): Baseline Characteristics
Baseline Characteristic Entecavir(n = 325)
Lamivudine(n = 313)
Age, mean (±SD), years 44 ±11 44 ±11
Male, no. (%) 248 (76) 236 (75)
Race, no. (%)WhiteAsianBlackOther
193 (59)122 (38)
8 (2)2 (<1)
176 (56)129 (41)
7 (2)1 (<1)
Knodell inflammatory score, mean (±SD) 7.6 ±1.8 7.6 ±1.7
Ishak fibrosis score, %≥3 (bridging fibrosis)≥4 (cirrhosis)
435
4110
Alanine aminotransferase, IU/mL (±SD) 141 ±114.7 143 ±119.4
Prior treatment w/ interferon or lamivudine, no. (%) 49 (15) 45 (14)
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90
78
7072 71
61
0
20
40
60
80
100
HBV DNA <300 copies/mL ALT Normalization Histologic Improvement
Part
icip
ants
(%)
Entecavir Lamivudine
P<0.001 P=0.01P=0.045
Source: Lai C, et. al. N Engl J Med. 2006;354:1011-21.
Entecavir versus Lamivudine in HBeAg-NegativeBEHoLD (HBeAg-Negative): Results
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Source: Lai C, et. al. N Engl J Med. 2006;354:1011-21.
Entecavir versus Lamivudine: 48 Week DataBEHoLD (HBeAg-Negative): Conclusions
Conclusions: “Among patients with HBeAg-negative chronic hepatitis B who had not previously been treated with a nucleoside analogue, the rates of histologic improvement, virologic response, and normalization of alanine aminotransferase levels were significantly higher at 48 weeks with entecavir than with lamivudine. The safety profile of the two agents was similar, and there was no evidence of viral resistance to entecavir.”
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Telbivudine versus LamivudineGlobe Study: 52 Weeks
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Source: Lai CL, et. al. N Engl J Med. 2007;357:2576-88.
Telbivudine versus LamivudineGlobe Study: Design
Telbivudine: 600 mg/day(n = 683)
Lamivudine:100 mg/day(n = 687)
Week 52Week 0
Randomized Analysis
Globe: Key Study Features
• Randomized, double-blinded
• HBeAg-positive (n = 921)
• HBeAg-negative (n = 446)
• Treatment-naïve
• HBV DNA >106 copies/mL
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Telbivudine versus LamivudineGlobe Study: Results
Source: Lai CL, et al. N Engl J Med. 2007;357:2576-88.
HBeAg-POSITIVE Patients: Week 52 Treatment Response
6065
40
56
0
20
40
60
80
100
HBV DNA <300 copies/mL Histologic Response
Pat
ient
s (%
)
Telbivudine Lamivudine
P=0.01P<0.001
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Telbivudine versus LamivudineGlobe Study: Results
Source: Lai CL, et al. N Engl J Med. 2007;357:2576-88.
HBeAg-NEGATIVE Patients: Week 52 Treatment Response
88
6771
66
0
20
40
60
80
100
HBV DNA <300 copies/mL Histologic Response
Pat
ient
s (%
)
Telbivudine Lamivudine
P=0.9P<0.001
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Source: Lai CL, et al. N Engl J Med. 2007;357:2576-88.
Telbivudine versus LamivudineGlobe Study: Conclusions
Conclusions: “Among patients with HBeAg-positive chronic hepatitis B, the rates of therapeutic and histologic response at 1 year were significantly higher in patients treated with telbivudine than in patients treated with lamivudine. In both the HBeAg-negative and the HBeAg-positive groups, telbivudine demonstrated greater HBV DNA suppression with less resistance than did lamivudine.”
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HBeAg-NegativePegINF alfa-2a versus Lamivudine versus Both
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Source: Marcellin P, et al. N Engl J Med. 2004;351:1206-17.
PegINF alfa-2a versus Lamivudine versus BothHBeAg-Negative Patients: Study Design
Peginterferon alfa-2a:180 mcg SC 1x/week+ Oral Placebo
(n = 177)
Lamivudine:100 mg/day(n = 181)
Study Features
Randomized 1:1:1HBeAg-negative (N=537)HBV DNA >105 copies/mLALT >1-10 x ULNTreatment x 48 weeks
Peginterferon alfa-2a:180 mcg SC 1xweek+ Lamivudine: 100 mg/day
(n = 179)
48 72Week 0
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PegINF alfa-2a versus Lamivudine versus BothHBeAg-Negative Patients: Results
Source: Marcellin P, et al. N Engl J Med. 2004;351:1206-17.
HBeAg-NEGATIVE Patients: Week 72 Treatment Response
43
59
44
60
29
44
0
20
40
60
80
100
HBV DNA <20,000 copies/mL ALT Normalization
Pat
ient
s (%
)
PegINF alfa-2a PegINF alfa-2a + Lamivudine Lamivudine
P=0.007
P=0.003P=0.849
P=0.004
P=0.003P=0.915
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Source: Marcellin P, et al. N Engl J Med. 2004;351:1206-17.
PegINF alfa-2a versus Lamivudine versus BothHBeAg-Negative Patients: Conclusions
Conclusions: “Patients with HBeAg-negative chronic hepatitis B had significantly higher rates of response, sustained for 24 weeks after the cessation of therapy, with peginterferon alfa-2a than with lamivudine. The addition of lamivudine to peginterferon alfa-2a did not improve post-therapy response rates.”
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HBeAg-PositvePegINF alfa-2a versus Lamivudine versus Both
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Source: Lau GK, et al. N Engl J Med. 2005;352:2682-95.
PegINF alfa-2a versus Lamivudine versus BothHBeAg-Positive Patients: Study Design
Peginterferon alfa-2a:180 mcg SC 1x/week+ Oral Placebo
(n = 271)
Lamivudine:100 mg/day(n = 272)
Study Features
Randomized 1:1:1HBeAg-positive (N=814)HBV DNA >5x 105
copies/mLALT > 1-10 x ULN
Peginterferon alfa-2a:180 mcg SC 1x/week+ Lamivudine: 100 mg/day
(n = 271)
48 72Week 0
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PegINF alfa-2a versus Lamivudine versus BothHBeAg-Positive Patients: Results
Source: Lau GK, et al. N Engl J Med. 2005;352:2682-95.
HBeAg-POSITIVE Patients: Week 72 Treatment Response
14
41
32
14
39
27
5
28
19
0
10
20
30
40
50
60
HBV DNA <400copies/mL
ALT Normalization HBeAg Seroconversion
Patie
nts
(%)
PegINF alfa-2a PegINF alfa-2a + Lamivudine Lamivudine
P < 0.001
P < 0.001
P = 0.006
P = 0.002
P = 0.02
P < 0.001
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Source: Lau GK, et al. N Engl J Med. 2005;352:2682-95.
PegINF alfa-2a versus Lamivudine versus BothHBeAg-Positive Patients: Conclusions
Conclusions: “In patients with HBeAg-positive chronic hepatitis B, peginterferon alfa-2a offers superior efficacy over lamivudine, on the basis of HBeAg seroconversion, HBV DNA suppression, and HBsAg seroconversion.”
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Lamivudine for Patients with Chronic Hepatitis B and Advanced Liver Disease
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Lamivudine for Chronic HBV & Advanced FibrosisStudy Design
• Background- Randomized double-blind placebo-controlled trial of lamivudine in patients with advanced fibrosis to assess efficacy in impacting liver disease progression
• Subjects- N = 651 with chronic HBeAg-negative or HBeAg-positive- All had advanced fibrosis = Ishak fibrosis score of 4-6.
• Regimen- Lamivudine 100 mg once daily versus placebo
• Study End-Point - Disease progression (any one of following): ≥2-point increase in Child Pugh score; spontaneous bacterial peritonitis; renal insufficiency (decline in CrCl <50); bleeding varices; HCC; death related to liver disease
Source: Liaw et. al. N Engl J Med. 2004;351:1521-31.
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Source: Liaw et. al. N Engl J Med. 2004;351:1521-31.
Lamivudine for Chronic HBV & Advanced FibrosisStudy Design
Lamivudine:100 mg/day(n = 436)
Placebo(n = 215)
Study Participants
• HBsAg-positive (≥6 months)
• HBeAg-negative or positive
• Advanced fibrosis: Ishak score 4-6 on biopsy
Year 5Time 0
Randomized 2:1 Analysis
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Source: Liaw et. al. N Engl J Med. 2004;351:1521-31.
Lamivudine for Chronic HBV & Advanced FibrosisBaseline Characteristics
Baseline Characteristic Lamivudine(n = 436)
Placebo(n = 215)
Age, median (range), years 43 (17-74) 44 (22-71)
Male, n (%) 370 (85) 182 (85)
Asian, n (%) 426 (98) 210 (98)
HBeAg positive, n (%) 252 (58) 124 (58)
Child-Pugh score, n (%)
5
6
≥7
341 (78)
75 (17)
20 (5)
156 (73)
41 (19)
18 (8)
Ishak fibrosis score, n (%)
4
5
6
176 (40)
127 (29)
133 (31)
76 (35)
55 (26)
84 (39)
Median HBV DNA, mEq/mL (range) 11.7 (<0.7-109,800) 21.5 (<0.7-4234)
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Source: Liaw et. al. N Engl J Med. 2004;351:1521-31.
Lamivudine for Chronic HBV & Advanced FibrosisDisease Progression
8
3 4
17.7
8.87.4
0
20
Overall progression Increase in CTP Hepatocellular carcinoma
Pat
ien
ts (
%)
Lamivudine Placebo
P=0.001 P=0.047P=0.02
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Source: Liaw et. al. N Engl J Med. 2004;351:1521-31.
Lamivudine for Chronic HBV & Advanced FibrosisConclusions
Conclusions: “Continuous treatment with lamivudine delays clinical progression in patients with chronic hepatitis B and advanced fibrosis or cirrhosis by significantly reducing the incidence of hepatic decompensation and the risk of hepatocellular carcinoma.”
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3128
18
8
31
25
13
8
1815
6
00
10
20
30
40
ALT Normal* HBV DNA <10,000copies/ml
HBV DNA <400copies/ml
Cleared HBsAg
Patie
nts
(%)
PegINF alpha-2a PegINF alpha-2a + Lamivudine Lamivudine
Source: Marcellin P, et al. Gastroenterology. 2009;136:2169-79.
Data 3 Years After Completing 48 Weeks of Therapy
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Questions?