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( Ming-lung Yu ),( Ming-lun Yeh ),( Chi-yi Chen ),( Pin-nan Cheng ),( Ming-jong Bair ),( Jyh-jou Chen ),( Ching-chu Lo ),( Chi-ming Tai ),( Ching-yang Tsai ),( Kuo-chih Tseng ),( Chien-hung Chen ),( C 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Insufficient data regarding the treatment strategy for partial response to nucleot(s)ide analogue (NUC) raised the aim of investigating tenofovir alafenamide (TAF) switching for chronic hepatitis B (CHB) patients with advanced fibrosis and partial response to other NUCs. Methods: CHB patients with advanced fibrosis (stage 3 or 4) and under NUC (except TAF) therapy with detectable hepatitis B virus (HBV) DNA for >52 weeks are enrolled to TAF 25 mg/day for 96 weeks. The objectives are viral suppression, alanine aminotransferase (ALT) normalization and safety. Results: From Feb. 2019, 34 patients, including 21 (61.8%) with entecavir, 10 (29.4%) TDF and 3 (8.8%) lamivudine or adefovir, were enrolled (15 [44.1%] male, median 53 years). The fibroscan demonstrated a mean of 10.5 kPa (7 [20.6%] cirrhotic). Sixteen (47.1%) patients were HBV e antigen positive, seven (20.6%) had YMDD mutation. The median HBV DNA level declined from 68.5 IU/mL at enrollment to 27.0 IU/mL at 4<sup>th</sup> week, and undetectable at 12<sup>th</sup>, 24<sup>th</sup>, 36<sup>th</sup> week, respectively, after TAF switching, with undetectable HBV DNA in 14/34 (41.2%), 17/33 (51.5%), 15/25 (60.0%), and 9/15 (60.0%) patients and rate of ALT normalization (≤40 U/L) of 85.3%, 85.3%, 84.8%, 92.0%, and 80.0%, respectively, after TAF switching. (figure 1) Two patients experienced transient virological breakthrough and another one developed at the final time follow up. Serum creatinine and eGFR levels were stable after TAF switching (figure 1). Two patients early terminated including one at 12<sup>th</sup> week due to personal reason, and another one accidently died at 20<sup>th</sup> week due to acute heart attack. Others suffered only mild degrees of adverse events which were considered unrelated to treatment. Conclusions: The preliminary results demonstrated the TAF switching is effective and safe in viral suppression for CHB patients with advanced fibrosis and partial virologic responses to other NUCs.
Chen-Kuo Chiang,Chien-Hung Wu,Chin-Chien Liu,Jin-Fu Lin,Chien-Lun Yang,Jiun-Yuan Wu,Shui-Jinn Wang 대한금속·재료학회 2012 ELECTRONIC MATERIALS LETTERS Vol.8 No.5
The NH3 thermal annealing and decoupled plasma nitridation (DPN) processes are compared for the equivalent oxide thickness (EOT) scaling of atomic-layer-deposited hafnium zirconate (HfZrO2) gate dielectric. Detailed physical, optical, and electrical characteristics of nitrided HfZrO2 (HfZrON) film are reported. It is found that DPN can yield a thinner SiOx interfacial layer (IL) (about 0.12 nm more in terms of EOT scaling)and a more densified HfZrO2 layer compared to those obtained using NH3 thermal annealing at a 16% nitrogen dose. NH3 thermal nitridation causes a large nitrogen distribution tail at the SiOx IL/Si substrate interface and increases leakage current, which suppresses EOT scalability.