Tenofovir Disoproxil Fumarate

– New findings to be presented at the 2025 European Association for the Study of the Liver (EASL) Congress continue to demonstrate the effectiveness of Livdelzi (seladelpar) in reducing pruritus in people with primary biliary cholangitis (PBC) – – Additional presentations will showcase the potential for maintained virologic response following treatment with investigational bulevirtide in people with hepatitis delta virus (HDV) – – Presentations in hepatitis B virus (HBV) and hepatitis C virus (HCV) will underscore Gilead’s commitment to advancing scientific research and our understanding of viral hepatitis in the real-world setting – FOSTER CITY, Calif.--(BUSINESS WIRE)-- Gilead Sciences, Inc. (Nasdaq:GILD) today announced new research to be presented at the European Association for the Study of the Liver (EASL) Congress, May 7-10, 2025, Amsterdam, furthering Gilead’s commitment to transform the lives of people living with liver disease. New data to be presented at EASL will include a subgroup analysis from ASSURE, an ongoing open-label study, and an analysis of the Phase 3 RESPONSE trial and the open-label extension. Data will reinforce the effectiveness of Livdelzi® (seladelpar), known as Lyvdelzi® in the European Union, in reducing pruritus (chronic itch), a debilitating common symptom of primary biliary cholangitis (PBC). Moreover, the results will highlight seladelpar’s ability to deliver a sustained biochemical response regardless of prior treatment history, and as an option for a broad range of people with PBC. “Our focus remains on addressing the areas of greatest unmet need across liver diseases,” said Dietmar Berger, MD, PhD, Chief Medical Officer, Gilead Sciences. “Our deep expertise in treating liver disease has delivered the first and only treatment for hepatitis delta and the first treatment for primary biliary cholangitis that has demonstrated statistically significant improvements across both chronic itch and markers of disease progression. Our studies continue to deliver transformational insights and therapies to help foster healthier futures for the millions of people who live with viral hepatitis and those who live with less prevalent liver conditions with remaining high unmet needs.” Key findings from 29 accepted abstracts will include two oral presentations showcasing new data on the critical goal of maintained virologic response following treatment with 2 mg and 10 mg bulevirtide in people living with hepatitis delta virus (HDV). These findings build on the wealth of long-term data for the treatment of chronic HDV. A late breaker presentation on the final results from the pivotal MYR301 Phase 3 study evaluating the efficacy and safety of 2 mg and 10 mg bulevirtide as monotherapy will reveal long-term response rates, including the proportion of participants with undetectable virus levels two years after treatment cessation. In hepatitis B (HBV), Gilead will present initial results from a Phase 1a study of a novel investigational therapeutic vaccine that shows early promise towards the goal of achieving a functional cure for HBV infection. A separate analysis of real-world data showed that individuals with low-level HBV viremia still have a risk of negative events. Additionally, a retrospective analysis of participants enrolled in two Phase 3 studies evaluating Vemlidy® (tenofovir alafenamide) using a risk score for liver cancer highlights the importance of treatment to help reduce liver cancer risk. Gilead will also showcase real-world data on hepatitis C (HCV), demonstrating the effects of direct-acting antivirals (DAA) against all genotypes of the virus across diverse geographical regions, supporting the global applicability of HCV treatment guidelines. In addition, new real-world insights will show that the choice of DAA for people living with HCV taking other medicines, such as antipsychotics, was associated with reducing the problem of drug-drug interactions. To help raise awareness about HCV and encourage people to get screened for the disease, Gilead will again support EASL’s “Love Your Liver” Campaign at the congress. At the EASL Congress, Gilead, in collaboration with the PBC Foundation and Friends of the PBC Foundation, will also launch “All the Feelings with PBC,” a campaign highlighting the experiences of people living with PBC and emphasizing the importance of listening to and addressing their needs in clinical practice and research. The campaign will feature paintings by Berlin-based artist, Nour Khwies, based on the physical and emotional experiences of people living with PBC: Dilek from Germany, Angela from Scotland, Joana from Portugal, and L. Marie from the United States, whose painting will be painted live at EASL. Key Abstracts at EASL 2025: ID Abstract Title PBC THU-291 Clinical meaningful change of pruritus numeric rating scale in adults with primary biliary cholangitis with moderate-to-severe pruritus THU-286 Seladelpar treatment of patients with primary biliary cholangitis improves the GLOBE score and predicts improved transplant-free survival THU-294 Change in pruritus in patients with primary biliary cholangitis and moderate-to-severe pruritus: A pooled analysis from the RESPONSE and ENHANCE studies THU-274 Efficacy and safety of seladelpar in patients previously treated with fibrates or OCA FRI-318 Evaluation of the potential impact of seladelpar on the pharmacokinetics of midazolam, tolbutamide, simvastatin, rosuvastatin, and atorvastatin HDV OS-066 Predictors of undetectable hepatitis delta virus RNA at 48 weeks after end of treatment with bulevirtide monotherapy in the MYR 301 study OS-070 Achieving undetectable hepatitis delta virus RNA at end of therapy with bulevirtide 10 mg/day with or without pegIFN is strongly associated with post-treatment virologic response in chronic hepatitis delta LBO-004 Final results of MYR301: A randomised Phase 3 study evaluating the efficacy and safety of up to 144 weeks of bulevirtide monotherapy for chronic hepatitis delta and 96 weeks of posttreatment follow-up HCV WED-276 The SVR10K Hepatitis C study: Final results show 98.9% SVR in 7,000 patients treated with SOF/VEL in Asia, Latin America, Middle East, Nordics, and Southern Europe WED-031 Healthcare resource use (HCRU) and cost impact of potential drug-drug interactions (DDIs) among HCV patients receiving Direct-Acting Antivirals (DAAs) concomitantly with antipsychotic drugs in the US HBV THU-246 Safety, tolerability and immunogenicity of GS-2829 and GS-6779, a novel arenaviral vectored therapeutic hepatitis B vaccine: results from a phase 1a study in healthy participants SAT-009 Risk of advanced liver disease among individuals with hepatitis B virus infection with low level viremia compared to individuals with no evidence of hepatitis B virus infection WED-296 Impact of long-term tenofovir-based treatment on hepatocellular carcinoma risk in patients with chronic hepatitis B using the reREACH-B score For more information on the EASL Congress 2025 and Gilead’s presentations, please visit the congress website. About Gilead Sciences in Liver Disease For decades, Gilead has pioneered the way forward to improve the lives of people living with liver disease around the world. The company has helped to transform hepatitis C from a chronic condition into a curable condition. For individuals living with hepatitis B or hepatitis delta, Gilead's focus on advancing medicines drives hope that today’s research will turn into tomorrow’s cures. Beyond viral hepatitis, Gilead is working to deliver advanced treatments for people living with PBC. The commitment of Gilead does not stop there. Through ground-breaking science and collaborative partnerships, the company strives to create healthier futures for everyone living with liver disease. Gilead remains devoted to a future without liver disease. Marketing Authorization In July 2023, the European Commission (EC) granted full Marketing Authorization (MA) for Hepcludex® (bulevirtide) 2 mg for the treatment of adults with chronic HDV and compensated liver disease. Bulevirtide was initially granted a conditional MA from the EC in July 2020 to provide people living with HDV urgent access to treatment. Bulevirtide’s conditional MA license in the UK was converted to a full MA in August 2023, and a full MA was granted in Switzerland in February 2024. In regions where bulevirtide is not approved, including the U.S., bulevirtide 2 mg is an investigational product. In these regions, health authorities have not established the safety and efficacy of bulevirtide. Bulevirtide 10 mg is an investigational product and is not approved anywhere globally. In February 2025, the European Commission (EC) granted conditional marketing authorization for Lyvdelzi® (seladelpar) for the treatment of PBC in combination with ursodeoxycholic acid (UDCA) in adults who have an inadequate response to UDCA alone, or as monotherapy in those unable to tolerate UDCA. Lyvdelzi provides an important treatment option for people living with PBC in the European Economic Area (EEA). Gilead is working with health authorities across Europe to ensure people living with PBC who are eligible for Lyvdelzi have access as soon as possible. Continued approval of Lyvdelzi for the approved indication will be contingent on verification and description of clinical benefit in confirmatory trial(s). Lyvdelzi has Priority Medicine (PRIME) designation in the EU, assigned to optimize the development of novel medicines that target conditions with an unmet medical need for which no treatment options exist or where they can offer a major therapeutic advantage over existing treatments, as well as well as Orphan Drug Designation for the treatment of people living with PBC. Livdelzi® received conditional approval from the UK Medicines and Healthcare products Regulatory Agency (MHRA) in January 2025. In the U.S., Livdelzi® obtained accelerated approval for the treatment of PBC by the U.S. Food and Drug Administration (FDA) in August 2024. Livdelzi received Breakthrough Therapy Designation, as well as Orphan Drug Designation for the treatment of people living with PBC. As part of the FDA accelerated approval, Gilead has committed to AFFIRM, a long-term outcomes study, which has begun in people with compensated cirrhosis. Continued U.S. approval may be contingent upon verification of clinical benefit in confirmatory trial(s). Regulatory review for Livdelzi is underway in Canada, Australia, and Switzerland. U.S. Indication for Livdelzi® Livdelzi is indicated for the treatment of primary biliary cholangitis (PBC) in combination with ursodeoxycholic acid (UDCA) in adults who have had an inadequate response to UDCA, or as monotherapy in patients unable to tolerate UDCA. The FDA approved this indication under accelerated approval based on a reduction of alkaline phosphatase (ALP). Improvement in survival or prevention of liver decompensation events have not been demonstrated. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trial(s). Limitations of Use: Use of Livdelzi is not recommended in patients who have or develop decompensated cirrhosis (e.g., ascites, variceal bleeding, hepatic encephalopathy). U.S. Important Safety Information for Livdelzi Warnings and Precautions Fractures: Fractures occurred in 4% of Livdelzi-treated patients compared to no placebo-treated patients. Consider the risk of fracture in the care of patients treated with Livdelzi and monitor bone health according to current standards of care. Liver Test Abnormalities: Livdelzi has been associated with dose-related increases in serum transaminase (AST and ALT) levels > 3 x ULN in patients receiving 50 mg and 200 mg once daily (5x and 20x higher than the recommended dosage of 10 mg once daily). Perform baseline clinical and laboratory testing when starting Livdelzi® and monitor thereafter according to routine patient management. Interrupt treatment if the liver tests (ALT, AST, total bilirubin, and/or ALP) worsen, or if the patient develops signs and symptoms of clinical hepatitis (eg, jaundice, right upper quadrant pain, eosinophilia). Consider permanent discontinuation if liver tests worsen after restarting Livdelzi. Biliary Obstruction: Avoid use of Livdelzi in patients with complete biliary obstruction. If biliary obstruction is suspected, interrupt Livdelzi and treat as clinically indicated. Adverse Reactions The most common adverse reactions (≥5%) with Livdelzi were headache (8%), abdominal pain (7%), nausea (6%), abdominal distension (6%), and dizziness (5%). Drug Interactions OAT3 Inhibitors and Strong CYP2C9 Inhibitors: Avoid co-administration with L due to increased Livdelzi exposure. Rifampin: Monitor biochemical response (e.g., ALP and bilirubin) when patients initiate rifampin during Livdelzi treatment. Coadministration may result in delayed or suboptimal biochemical response of Livdelzi. Dual Moderate CYP2C9 and Moderate-to-Strong CYP3A4 Inhibitors and BCRP Inhibitors (e.g., cyclosporine): Monitor closely for adverse effects. Concomitant administration with Livdelzi may increase Livdelzi exposure. CYP2C9 Poor Metabolizers Using Moderate-to-Strong CYP3A4 Inhibitors: Monitor more frequently for adverse reactions as concomitant use of a moderate-to-strong CYP3A4 inhibitor in patients who are CYP2C9 poor metabolizers may increase Livdelzi exposure and risk of LIVDELZI adverse reactions. Bile Acid Sequestrants: Administer Livdelzi at least 4 hours before or 4 hours after taking a bile acid sequestrant, or at as great an interval as possible. Pregnancy and Lactation Pregnancy: There is insufficient data from human pregnancies exposed to Livdelzi to allow an assessment of a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Report pregnancies to Gilead Sciences, Inc., at 1-800-445-3235. Lactation: There is no data on the presence of Livdelzi in human milk, the effects on the breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for Livdelzi and any potential adverse effects on the breastfed infant from Livdelzi. U.S. Indication for Vemlidy® VEMLIDY is indicated for the treatment of chronic hepatitis B virus infection in adults and pediatric patients six years of age and older and weighing at least 25 kg with compensated liver disease. U.S. Important Safety Information for and Indication for the Use of Vemlidy BOXED WARNING: POSTTREATMENT SEVERE ACUTE EXACERBATION OF HEPATITIS B Discontinuation of anti-hepatitis B therapy, including VEMLIDY, may result in severe acute exacerbations of hepatitis B. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who discontinue anti-hepatitis B therapy, including VEMLIDY. If appropriate, resumption of anti-hepatitis B therapy may be warranted. Warnings and Precautions Risk of Development of HIV-1 Resistance in HBV/HIV-1 Coinfected Patients:Due to this risk, VEMLIDY alone should not be used for the treatment of HIV-1 infection. Safety and efficacy of VEMLIDY have not been established in HBV/HIV-1 coinfected patients. HIV antibody testing should be offered to all HBV-infected patients before initiating therapy with VEMLIDY, and if positive, an appropriate antiretroviral combination regimen that is recommended for HBV/HIV-1 coinfected patients should be used. New Onset or Worsening Renal Impairment:Postmarketing cases of renal impairment, including acute renal failure, proximal renal tubulopathy (PRT), and Fanconi syndrome, have been reported with TAF-containing products. Patients with impaired renal function and/or taking nephrotoxic agents (including NSAIDs) are at increased risk of renal-related adverse reactions. Discontinue VEMLIDY in patients who develop clinically significant decreases in renal function or evidence of Fanconi syndrome. Monitor renal function in all patients – See Dosage and Administration. Lactic Acidosis and Severe Hepatomegaly with Steatosis:Fatal cases have been reported with the use of nucleoside analogs, including tenofovir disoproxil fumarate (TDF). Discontinue VEMLIDY if clinical or laboratory findings suggestive of lactic acidosis or pronounced hepatotoxicity develop, including hepatomegaly and steatosis in the absence of marked transaminase elevations. Adverse Reactions Most common adverse events in the week 96 pediatric population reported in ≥5% were: nasopharyngitis, headache, COVID-19, pyrexia, diarrhea, upper respiratory tract infection, cough, respiratory tract infection viral, abdominal pain upper. Overall, abdominal pain upper and metabolic nephropathy were the only study drug–related adverse events, which occurred in > 1 participant, reported in 2.3% (2/88 participants) each. Drug Interactions Coadministration of VEMLIDY with drugs that reduce renal function or compete for active tubular secretion may increase concentrations of tenofovir and the risk of adverse reactions. Coadministration of VEMLIDY is not recommended with the following: oxcarbazepine, phenobarbital, phenytoin, rifabutin, rifampin, rifapentine, or St. John’s wort. Such coadministration is expected to decrease the concentration of tenofovir alafenamide, reducing the therapeutic effect of VEMLIDY. Drugs that strongly affect P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP) activity may lead to changes in VEMLIDY absorption. Coadministration of VEMLIDY with carbamazepine, the tenofovir alafenamide dose should be increased to two tablets once daily. Consult the full prescribing information for VEMLIDY for more information on potentially significant drug interactions, including clinical comments. Dosage and Administration Testing Prior to Initiation:HIV infection. Prior to or When Initiating, and During Treatment:On a clinically appropriate schedule, assess serum creatinine, estimated creatinine clearance, urine glucose, and urine protein in all patients. In patients with chronic kidney disease, also assess serum phosphorus. Dosage:1 tablet taken once daily with food. Renal Impairment:Not recommended in patients with end-stage renal disease (ESRD; eCrCl <15 mL/min) who are not receiving chronic hemodialysis; in patients on chronic hemodialysis, on hemodialysis days, administer VEMLIDY after completion of hemodialysis treatment. No data are available to make dose recommendations in pediatric patients with renal impairment. Hepatic Impairment:Not recommended in patients with decompensated (Child-Pugh B or C) hepatic impairment. About Gilead Sciences Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis, COVID-19, cancer and inflammation. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, California. Forward-Looking Statements This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks, uncertainties and other factors, including Gilead’s ability to initiate, progress or complete clinical trials within currently anticipated timelines or at all, and the possibility of unfavorable results from ongoing or additional clinical trials, including those involving Lyvdelzi®/Livdelzi® (seladelpar), Vemlidy®, bulevirtide, sofosbuvir, velpatasvir, GS-2829 and GS-6779 (such as the ASSURE, MYR301, RESPONSE, SVR10K and any confirmatory studies); uncertainties relating to regulatory applications and related filing and approval timelines, including additional pending and potential applications for seladelpar; the risk that any regulatory approvals, if granted, may be subject to significant limitations on use or subject to withdrawal or other adverse actions by the applicable regulatory authority; uncertainties regarding Gilead’s ability to coordinate access to seladelpar in a timely manner or at all; the risk that physicians may not see the benefits of prescribing seladelpar for treatment of PBC; and any assumptions underlying any of the foregoing. These and other risks, uncertainties and factors are described in detail in Gilead’s Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the U.S. Securities and Exchange Commission. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. The reader is cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties and is cautioned not to place undue reliance on these forward-looking statements. All forward-looking statements are based on information currently available to Gilead, and Gilead assumes no obligation and disclaims any intent to update any such forward-looking statements. Hepcludex, Lyvdelzi, Livdelzi, Vemlidy, Gilead and the Gilead logo are registered trademarks of Gilead Sciences, Inc., or its related companies. Full Prescribing Information for Livdelzi® and Vemlidy® are available at www.gilead.com . For more information about Gilead, please visit the company’s website at www.gilead.com , follow Gilead on X/Twitter (@Gilead Sciences) and LinkedIn (@Gilead-Sciences). Blair Baumwell, Media public_affairs@gilead.com Jacquie Ross, Investors investor_relations@gilead.com

“点击蓝字 关注我们翰森制药恒沐®20余项成果亮相，5年随访Ⅳ期研究及免疫学机制研究获口头报告 PPS 近日，备受瞩目的第34届亚太肝病学会年会（APASL 2025）在北京召开。该次大会上，翰森制药自主研发的中国首个原研口服抗乙型肝炎病毒药物恒沐®（艾米替诺福韦，TMF）20余项学术成果发布，其中2项研究成果入选口头报告，分别为恒沐®Ⅳ期研究5年随访结果及抗病毒治疗免疫学机制研究结果。 IV期研究5年随访结果显示，恒沐®治疗慢性乙型肝炎患者在多个疗效终点，特别是在病毒学反应和HBeAg转阴方面持续为患者带来获益，其中治疗5年累积HBV DNA抑制率高达95%，且HBeAg转阴率达68%，在目前NAs类药物中最高。恒沐®治疗使63%的患者成为功能性治愈优势人群，且5年治疗累积病毒学耐药发生率为0。安全性方面，研究期间未发现新的药物相关不良事件，骨、肾和脂质安全性参数均保持稳定。抗病毒治疗免疫学机制研究结果显示，恒沐®在慢性HBV感染和复制小鼠模型中均具有明显的抗病毒活性和免疫调节作用，其有可能通过调节T细胞反应和降低病毒载量而治疗慢性HBV感染。从而揭示了恒沐®发挥显著抗病毒疗效（高HBeAg阴转率）的潜在分子免疫学机制。以下为两项口头报告具体内容：口头报告1艾米替诺福韦治疗慢性乙型肝炎5年疗效和安全性[1]报告专家：刘智泓（南方医科大学南方医院）摘要编号：OP0155【研究背景】恒沐®(TMF)是替诺福韦的一种新型前药，在中国广泛用于治疗慢性乙型肝炎（CHB）。先前的Ⅲ期注册研究（NCT03903796）已经确定了TMF在抗病毒疗效上非劣于富马酸替诺福韦二吡呋酯（TDF），同时显示出更高的丙氨酸转氨酶（ALT）复常率和改善的骨骼和肾脏安全性。这项Ⅳ期研究进一步展示了TMF的长期疗效和安全性。【研究方法】完成TMFⅢ期注册试验的受试者入组该Ⅳ期研究，所有受试者继续每天口服TMF25mg。该次中期分析的主要疗效终点是第5年血清HBV DNA水平低于中心实验室检测下限的参与者比例。【研究结果】总共有639例（63.8%）参与者入组， 589例患者纳入符合方案集（PPS）分析，其中包含TMF治疗组399例，TDF转换TMF组（TDF-TMF）190例，两组的患者特征在基线上（第3年）分布均衡。至第5年，TMF组和TDF-TMF组达到HBV DNA <20 IU/mL的比例分别为95.2%和94.1%，比第3年时分别提高了5.5%和7.3%。两组中分别有91.9%和91.5%的患者达到HBV DNA <10 IU/mL。整个研究期间，HBeAg转阴率不断增加，第5年时TMF组和TDF-TMF组的HBeAg转阴率分别达到68.0%和63.4%。同时，第5年TMF组累计有24.8%的患者实现HBeAg血清学转换。5年期间两组功能性治愈（HBsAg<3000 IU/mL）优势人群比例均不断升高，至第5年，总体人群中功能性治愈优势人群占比达63%。TMF持续治疗5年期间的累积病毒学耐药率为0。在ALT复常方面，TMF治疗使得TDF-TMF组患者的ALT复常率在第5年继续升高，基于AASLD标准相比第3年提高了4.6%。经过TMF的转换治疗，TDF对患者的肝损伤得到了逆转，至第5年时，两组的ALT复常率已无显著性差异。安全性方面，第3年至第5年治疗期间总体安全性良好，严重不良事件（SAE）发生率低（2.7%）。至第5年时，53.9%的患者腰椎骨密度Z值评分显示增加，TMF组和TDF-TMF组之间无明显差异。在总体人群中，估算肾小球滤过率（eGFR）<60 ml/min/1.73 m2的累积发生率在5年期间一直维持在较低水平（0.0%~0.5%），总胆固醇/高密度脂蛋白胆固醇（TC/HDL）比值也保持稳定，体重仅有轻微增加。【研究结论】恒沐®治疗慢性乙型肝炎患者5年疗效和安全性良好。无论是TMF持续治疗组还是TDF转换TMF治疗组，在接受TMF继续治疗后均维持高病毒学应答率，甚至使绝大部分（>90%）患者实现了HBV DNA<10 IU/mL。长期TMF治疗还持续提高了HBeAg转阴和血清学转换的患者比例。此外，骨、肾和脂质安全性参数在研究期间维持稳定。该研究仍在进行中，未来还将有进一步的随访结果。口头报告2艾米替诺福韦在慢性HBV复制小鼠模型中的抗病毒和免疫调节作用的评价[2]报告专家：刘嘉（华中科技大学同济医学院附属协和医院）摘要编号：OP0312【研究背景】该研究在两种不同的小鼠模型中研究了艾米替诺福韦对慢性乙型肝炎病毒（HBV）感染的抗病毒疗效和免疫调节作用。【研究方法】采用两种小鼠模型：(1)通过尾静脉注射rAAV8-HBV1.3重组病毒建立rAAV8-HBV1.3慢性感染模型；(2)通过流体动力学注射HBV表达质粒BPS建立BPS HDI慢性复制模型。小鼠在HBV感染后14至27天口服TMF、恩替卡韦（ETV）或富马酸替诺福韦二吡呋酯（TDF）。监测血清HBsAg、HBeAg、HBsAb、HBeAb和HBV DNA水平。在感染乙肝病毒后第28天，分离肝脏浸润淋巴细胞，用流式细胞术分析T细胞活化、分化和HBV特异性T细胞反应。【研究结果】在rAAV8-HBV1.3感染小鼠模型中，TMF治疗显著降低血清HBV DNA水平，与ETV和TDF治疗相当。TMF还增加了活化的CD69+CD4+和CD8+T细胞、前体细胞效应CD4+和CD8+T细胞以及分泌IFN-γ的CD4+T细胞的频率。在BPS HDI模型中，TMF治疗同样降低了血清HBV DNA水平，增加了前体效应CD4+T细胞、分泌IFN-γ和IL-2的CD4+T细胞和分泌IFN-γ的CD8+T细胞的频率。此外，TMF治疗显示肝脏中HBcAg特异性CD8+T细胞具有增加的趋势。【研究结论】恒沐®在慢性HBV感染和复制小鼠模型中均表现出显著的抗病毒活性和免疫调节作用。这些发现表明TMF有可能通过调节T细胞反应和降低病毒载量而治疗慢性HBV感染。其他20余项恒沐®相关研究均以壁报（Poster）或电子壁报（ePoster）形式发布，内容涉及恒沐®在老年人群、孕妇、肝硬化、肝衰竭、终末期肝病、肝癌、合并高脂血症等不同慢乙肝细分人群中的应用，评估了恒沐®对血糖、脂质水平的影响，以及联合干扰素或其他药物的临床应用等等。其中，一项系统综述与网络Meta分析结果显示，在四种新一代NAs类药物【TAF、TMF、BSV和PDV】中，恒沐®在ALT复常、延缓肝纤维化进展方面更具优势，且骨骼、肾脏安全性最佳[3]。一项回顾性研究首次证明了恒沐®治疗慢乙肝孕妇具有良好的母婴安全性和疗效，结合标准的乙肝免疫接种，可成功预防HBV母婴传播[4]。另一项回顾性真实世界研究首次证实了恒沐®治疗HBV相关肝细胞癌（HCC）患者具有良好的有效性和安全性，且相比ETV具有更高的ALT复常率和更佳的血脂状况[5]。两项针对HBV相关慢加急性肝衰竭（HBV-ACLF）患者的研究显示，恒沐®的疗效与ETV、TAF相当[6、7]。多项研究显示，恒沐®并不影响患者的糖脂代谢[8、10]。这些研究从不同角度证实了恒沐®具有显著的抗病毒疗效和安全性优势，也为慢性乙型肝炎（CHB）患者的临床优化治疗提供了循证依据参考。关于翰森制药翰森制药是中国领先的创新驱动型制药企业，以「持续创新，提高人类生命质量」为使命，重点关注抗肿瘤、抗感染、中枢神经系统、代谢及自身免疫等重大疾病治疗领域。截至目前，公司已上市7款创新药，形成了丰富的产品管线。翰森制药连续多年位居全球制药企业百强、中国医药研发产品线最佳工业企业前3强，是国家重点高新技术企业、国家技术创新示范企业。翰森制药于2019年6月在香港联交所挂牌上市（股票代码：03692.HK）。参考文献：[1]Jinlin Hou,et al.5-Year Efficacy and Safety of Tenofovir Amibufenamide in Chronic Hepatitis B Patients.APASL 2025.OP0155[2]Jia Liu,et al.Evaluation of Antiviral and Immunomodulatory Effects of Tenofovir amibufenamide in Chronic HBV-replication Mouse Models. APASL 2025.OP0312[3]Zhihong Liu,et al. New generation nucleotide analogues in treating chronic hepatitis B within Asian population: a systematic review and network meta analysis of randomized controlled trials. APASL 2025.EP0154[4]Ruyue Chen,et al. Safety and Effectiveness of Tenofovir Amibufenamide for Pregnant Women with Chronic Hepatitis B. APASL 2025.PP0187[5]Yuehang Wang,et al. Effectiveness and Safety of 48-Week Tenofovir Amibufenamide in Patients with Hepatitis B Virus-Related Hepatocellular Carcinoma: A Retrospective Real-World Study. APASL 2025.PP0245[6]Jing Cui,et al. Analysis of the Short-term Efficacy and Safety of Tenofovir Amibufenamide in the Treatment of Patients with HBV-related Acute-on-chronic Liver Failure. APASL 2025.PP0853[7]Xiao Chuan Diao,et al.Comparative efficacy and safety of tenofovir amibufenamide vs tenofovir alafenamide and entecavir in the hepatitis B virus related acute-on-chronic liver failure patients: A single-centre retrospective study. APASL 2025.PP0192[8]Jie Li,et al. Evaluation of the therapeutic efficacy of alafenamide fumarate and tenofovir amibufenamide in the treatment of chronic hepatitis B patients with concomitant hyperlipidemia. APASL 2025.EP0120[9]JUN LI,et al.A real-world study of the efficacy of tenofovir amibufenamide (TMF) in the treatment of patients with chronic hepatitis B and its effect on blood glucose and lipid levels. APASL 2025.PP0189[10]Jishen Zhang,et al. The effect of tenofovir amibufenamide on lipid metabolism in patients with chronic hepatitis B is less than that of tenofovir alafenamide. APASL 2025.PP0196文章来源：豪森药业美编排版：朱玲欣文章审核：隋艾蓉  朱玲欣 罗琪【免责声明】以上内容来源于互联网，不代表本平台立场或观点；如有侵犯作者著作权，请及时与我们联系（Tel：025-83271227，或直接在微信平台留言），我们将及时更正或删除。《药学进展》杂志由国家教育部主管、中国药科大学和中国药学会共同主办，中国科技核心期刊（中国科技论文统计源期刊）。刊物以反映药学科研领域的新方法、新成果、新进展、新趋势为宗旨，以综述、评述、行业发展报告为特色，以药学学科进展、技术进展、新药研发各环节技术信息为重点，是一本专注于医药科技前沿与产业动态的专业媒体。《药学进展》注重内容策划、加强组稿约稿、深度挖掘、分析药学信息资源、在药学学科进展、科研思路方法、靶点机制探讨、新药研发报告、临床用药分析、国际医药前沿等方面初具特色；特别是医药信息内容以科学前沿与国家战略需求相合，更加突出前瞻性、权威性、时效性、新颖性、系统性、实战性。根据最新统计数据，刊物篇均下载率连续三年蝉联我国医药期刊榜首，复合影响因子1.216，具有较高的影响力。《药学进展》编委会由国家重大专项化学药总师陈凯先院士担任主编，编委由新药研发技术链政府监管部门、高校科研院所、制药企业、临床医院、CRO、金融资本及知识产权相关机构近两百位极具影响力的专家组成。联系《药学进展》↓↓↓编辑部官网：pps.cpu.edu.cn；邮箱：yxjz@163.com；电话：025-83271227。欢迎投稿、订阅！往期推荐聚焦“兴药为民·2023生物医药创新融合发展大会”“兴药为民·2023生物医药创新融合发展大会”盛大启幕！院士专家齐聚杭城，绘就生物医药前沿赛道新蓝图“兴药强刊”青年学者论坛暨《药学进展》第二届青年编委会议成功召开“兴药为民·2023生物医药创新融合发展大会”路演专场圆满收官！校企合作新旅程已启航我知道你在看哟