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本帖最后由 StephenW 于 2014-10-30 12:27 编辑
1909
A Comparison of the Efficacy and Safety of Entecavir Versus Lamivudine Through 240 Weeks of Treatment in Korean Patients with HBeAg-negative Chronic Hepatitis B
Kwan Sik Lee1, Young-Oh Kweon2, Soon Ho Um3, Byung-Ho Kim4, Young Suk Lim5, Seung Woon Paik6, Jeong Heo7, Heon Ju Lee8, Dong Joon Kim9, Tae Hun Kim10, Young Sok Lee11, Kwan Soo Byun12, Dae-Ghon Kim13, Myung Seok Lee14, Cyril Llamoso15, Kyungha Yu16, Dong Jin Suh17;
1Gangnam Severance Hospital, Yonsei University, Seoul, Republic of Korea; 2Kyungpook National University, Daegu, Republic of Korea; 3Korea University Anam Hospital, Seoul, Republic of Korea; 4Kyung Hee University Hospital, Kyung Hee University, Seoul, Republic of Korea; 5Asan Medical Center, University of Ulsan, Seoul, Republic of Korea; 6Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea; 7Pusan National University Hospital, Busan, Republic of Korea; 8Yeungnam University Medical Center, Yeungnam University Hospital, Daegu, Republic of Korea; 9Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Republic of Korea; 10Ewha Womans University Mokdong Hospital, Yangchoengu, Seoul, Republic of Korea; 11Bucheon St. Mary's Hospital, The Catholic University of Korea, Bucheon, Republic of Korea; 12Korea University Guro Hospital, Seoul, Republic of Korea; 13Chonbuk National University Hospital, Cheonju, Republic of Korea; 14Kang nam Sacred Heart Hospital, Hallym University, Seoul, Republic of Korea; 15Bristol-Myers Squibb, Wallingford, CT; 16Bristol-Myers Squibb, Seoul, Republic of Korea; 17Vievis Namuh Hospital, Seoul, Republic of Korea
Purpose: Long-term data on antiviral therapy in patients with HBeAg-negative chronic hepatitis B (CHB) are limited. We present the efficacy and safety of entecavir (ETV) compared with lamivudine (LAM) in treatment-naïve Korean patients with HBeAg-negative CHB over 240 weeks. Methods: Patients were randomized to receive either ETV 0.5 mg/day or LAM 100 mg/day during the initial double-blind phase of 96 weeks, followed by open-label treatment through to Week 240. The primary objective was the proportion of patients with virologic response (VR, <300 copies/mL by PCR) at Week 24. Secondary objectives included ALT normalization (ALT ≤1 × ULN) and emergence of ETV resistance at Week 96, and proportion of patients with VR and mean reduction from baseline HBV DNA levels at Week 240. Safety data reported throughout the study included adverse events (AEs), serious AEs (SAEs), laboratory abnormalities and discontinuation due to AEs.
Results: A total of 120 male and female patients (>16 years) were enrolled from 14 centers across Korea (ETV, n=56; LAM, n=64). There were no differences in baseline characteristics between the groups (Table). At Week 24, the proportion of patients with VR was significantly higher in the ETV group than in the LAM group (92.9% vs. 67.2%, p=0.0006), Week 96 (94.6% vs. 48.4%, p<0.0001) and Week 240 (95.0% vs. 47.6%, p<0.0001). At Week 96, ALT normalization was observed in 87.5% of ETV-treated and in 51.6% LAM-treated patients ( p<0.0001), while virologic breakthrough occurred in one patient (1.8%) receiving ETV and 26 patients (42.6%) receiving LAM ( p<0.0001). Emergence of resistance to ETV was not detected. Mean reduction in HBV DNA from baseline to Week 240 was −3.61 ±0.76 and −2.45 ±1.54 log10 copies/mL with ETV and LAM, respectively (p<0.0001). Overall, 11 SAEs were reported in 7 ETV-treated patients while 20 SAEs were reported in 17 LAM-treated patients ( p=0.055); however, these events were not related to either of the study medications.
Conclusions: Long-term therapy with ETV offers advantages over LAM, with significantly higher proportions of HBeAg-negative CHB patients achieving virologic response and ALT normalization. Both treatments were well tolerated.
Table. Baseline data and VR
Disclosures:
Young Suk Lim - Grant/Research Support: BMS
Jeong Heo - Advisory Committees or Review Panels: Jennerex, Abbvie, Johnson & Johnson; Grant/Research Support: BMS, Roche, GSK; Management Position: Tau PNU Medical
Tae Hun Kim - Grant/Research Support: BMS
Kwan Soo Byun - Advisory Committees or Review Panels: Gilead; Grant/ Research Support: Gilead, BMS, Taiho, Jassen; Speaking and Teaching: BMS
Cyril Llamoso - Employment: Bristol-Myers Squibb
Kyungha Yu - Employment: Bristol-Myers Squibb
The following people have nothing to disclose: Kwan Sik Lee, Young-Oh Kweon, Soon Ho Um, Byung-Ho Kim, Seung Woon Paik, Heon Ju Lee, Dong Joon Kim, Young Sok Lee, Dae-Ghon Kim, Myung Seok Lee, Dong Jin Suh
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