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Xu X, Yan SL, Yo YT, Chiang P, Tsai CY, Lin LL, Qin A. A Novel Monoclonal Antibody against PD-1 for the Treatment of Viral Oncogene-Induced Tumors or Other Cancer. Cancers (Basel) 2024; 16:3052. [PMID: 39272910 PMCID: PMC11393876 DOI: 10.3390/cancers16173052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 08/27/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024] Open
Abstract
Programmed cell death 1 (PD-1) and programmed death-ligand 1 (PD-L1) interact to form an immune checkpoint fostering viral infection and viral oncogene-induced tumorigenesis. We generated a novel anti-human PD-1, humanized monoclonal antibody P1801 and investigated its pharmacologic, pharmacokinetic (PK), and pharmacodynamic properties. In vitro binding assays revealed that P1801 uniquely binds to human PD-1 and inhibits its interaction with PD-L1/2. It showed a minor effect on the induction of antibody-dependent cell-mediated cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC). P1801 significantly induced the release of IL-2 from activated T-cells but not from nonactivated T-cells. A dose-dependent linear PK profile was observed for the cynomolgus monkeys treated with repeated doses of P1801 at 5 mg/kg to 200 mg/kg once weekly. A four-week repeat-dose toxicity study revealed that P1801 given weekly was safe and well tolerated at doses ranging from 5 to 200 mg/kg/dose. No pathological abnormalities were noted. In humanized PD-1 mice harboring human PD-L1-expressing colon tumor cells, P1801 administered intraperitoneally twice per week at 12 mg/kg significantly inhibited tumor growth and prolonged mouse survival. P1801 displayed unique binding properties different from pembrolizumab and nivolumab. Therefore, it showed distinctive immunological reactions and significant antitumor activities. We are initiating a Phase 1 clinical study to test its combination use with ropeginterferon alfa-2b, which also has antiviral and antitumor activities, for the treatment of cancer.
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Affiliation(s)
- Xu Xu
- Research Department, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Shih-Long Yan
- Research Department, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Yi-Te Yo
- Research Department, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Peiyu Chiang
- Research Department, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Chan-Yen Tsai
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Lih-Ling Lin
- Research Department, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Albert Qin
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei 115, Taiwan
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Liu WD, Feng PH, Cheng CY, Chou CL, Lee CH, Lu MC, Liu PY, Lee MH, Liao CH, Chen MC, Chen CP, Hsu SF, Tzeng YT, Lin YC, Ou TY, Qin A, Tsai CY, Shih WJ, Lee KY, Sheng WH. A Phase 3, Randomized, Controlled Trial Evaluating the Efficacy and Safety of Ropeginterferon Alfa-2b in Patients with Moderate COVID-19. Infect Dis Ther 2024; 13:1575-1588. [PMID: 38771550 PMCID: PMC11219598 DOI: 10.1007/s40121-024-00992-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/08/2024] [Indexed: 05/22/2024] Open
Abstract
INTRODUCTION Ropeginterferon alfa-2b is a novel mono-pegylated proline-interferon. This clinical study aimed to evaluate its antiviral efficacy of ropeginterferon alfa-2b against SARS-CoV-2 infection. METHODS This is a multicenter, randomized, open-label study. Adult patients with confirmed SARS-CoV-2 infection with initial cycle threshold (Ct) value < 30 and symptom onset within 4 days were enrolled. Eligible patients were randomized in a 2:1 ratio to receive a single 250-µg dose of ropeginterferon alfa-2b subcutaneously plus standard of care (SOC) or to receive SOC alone. The primary endpoint was the proportion of patients with a negative RT-PCR result for SARS-CoV-2 or discharged from the hospital before Day 8. Change in clinical status based on the World Health Organization (WHO) clinical progression scale and pulmonary infiltrations through chest radiograph were also evaluated. RESULTS A total of 132 patients were enrolled and treated with study medication. Higher percentages of patients who achieved Ct ≥ 30 or were discharged from the hospital were observed on Day 8 and every other time point of assessment, i.e., Days 5, 11, 15, and 22, in the ropeginterferon alfa-2b group compared to the SOC alone group. However, the difference was statistically significant on Day 11 but not on Day 8. The primary endpoint was not met. The ropeginterferon alfa-2b group showed a higher improvement rate in lung infiltration on Day 5 (27.6% vs. 0.0%, p = 0.0087) and a higher improvement rate in WHO clinical progression scores on Day 8 (69.4% vs. 35.3%, p = 0.03) than those in the SOC group. No ropeginterferon alfa-2b-related serious adverse event was observed. CONCLUSION Our data show that ropeginterferon alfa-2b with SOC shortened the duration of SARS-CoV-2 shedding compared with SOC alone. In addition, ropeginterferon alfa-2b as an additional therapy could be beneficial by improving lung infiltration.
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Affiliation(s)
- Wang-Da Liu
- Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 10002, Taiwan, ROC
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No. 250 Wuxing Street, Taipei, 110, Taiwan
| | - Chien-Yu Cheng
- Division of Infectious Diseases, Department of Internal Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Chun-Liang Chou
- Division of Thoracic Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chih-Hsin Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No. 250 Wuxing Street, Taipei, 110, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Wang Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Min-Chi Lu
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Po-Yu Liu
- Division of Infectious Diseases, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Mei-Hui Lee
- Division of Infectious Diseases, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chun-Hsing Liao
- Division of Infectious Diseases, Department of Internal Medicine, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Mei-Chuan Chen
- Division of Thoracic Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Pin Chen
- Division of Infectious Diseases, Department of Internal Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Shang-Fu Hsu
- Division of Thoracic Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yu-Tien Tzeng
- Division of Pulmonary Medicine, Department of Internal Medicine, Wang Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chun Lin
- Division of Infectious Diseases, Department of Internal Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Tsong-Yih Ou
- Division of Infectious Disease, Department of Internal Medicine, Wang Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Albert Qin
- Department of Medical Research and Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan
| | - Chan-Yen Tsai
- Department of Medical Research and Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan
| | | | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No. 250 Wuxing Street, Taipei, 110, Taiwan.
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Wang-Huei Sheng
- Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 10002, Taiwan, ROC.
- School of Medicine, National Taiwan University College of Medicine, No. 1, Jen Ai Road, Section 1, Taipei, 10051, Taiwan.
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Qin A, Wu D, Li Y, Zhang J, Wang W, Shen W, Liao J, Lin S, Chang C, Chen H, Cui J, Su X. Exposure-efficacy and exposure-safety analyses of ropeginterferon alfa-2b treatment in patients with polycythaemia vera. Br J Clin Pharmacol 2024; 90:1493-1502. [PMID: 38500445 DOI: 10.1111/bcp.16043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/26/2024] [Accepted: 01/30/2024] [Indexed: 03/20/2024] Open
Abstract
AIMS To investigate the exposure-response (E-R) relationship, including exposure-efficacy and exposure-safety, of ropeginterferon alfa-2b treatment in patients with polycythaemia vera (PV). METHODS Based on the results of the phase II trial A20-202 regarding ropeginterferon alfa-2b in patients with PV, E-R analyses were performed to evaluate the efficacy and safety of the given dosing regimen. The E-R analyses were based on logistic and linear regression and the relationship between exposure to ropeginterferon alfa-2b and key efficacy and safety variables. The key efficacy variables included complete haematologic response (CHR) and reduction of the driver mutation JAK2V617F. The safety variable was treatment-related adverse events (TRAEs). RESULTS A clear relationship between the exposure to ropeginterferon alfa-2b and CHR was observed, with an increase in drug exposure resulting in an increased probability of achieving CHR. Similar CHR probabilities were observed in the third and fourth quantiles of the average concentration at Week 24. The results from the exposure-JAK2V617F model indicated that the JAK2V617F allele burden decreased with increasing exposure to ropeginterferon alfa-2b and baseline body surface area. Exposure-safety analysis revealed a risk of AEs associated with transaminase abnormalities, which were not associated with clinical significance. CONCLUSIONS Our analyses have shown that patients with PV treated with ropeginterferon alfa-2b had an increased probability of achieving CHR and a molecular response with acceptable safety risks at the 250-350-500 μg titration dosing regimen. This study has provided the relevant data for the application of a biologics licence of ropeginterferon alfa-2b for PV treatment in China.
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Affiliation(s)
- Albert Qin
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan, ROC
| | - Daoxiang Wu
- PharmaEssentia Biotech (Beijing) Limited, Beijing, China
| | - Yaning Li
- PharmaEssentia Biotech (Beijing) Limited, Beijing, China
| | - Jingjing Zhang
- PharmaEssentia Biotech (Beijing) Limited, Beijing, China
| | - Wei Wang
- PharmaEssentia Biotech (Beijing) Limited, Beijing, China
| | - Weihong Shen
- PharmaEssentia Biotech (Beijing) Limited, Beijing, China
| | - Jason Liao
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan, ROC
| | - Sheena Lin
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan, ROC
| | - Cynthia Chang
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan, ROC
| | - Haoqi Chen
- Pharmaron Clinical Services Co., Ltd, Chengdu, China
| | - Jie Cui
- Pharmaron Clinical Services Co., Ltd, Chengdu, China
| | - Xia Su
- Pharmaron Clinical Services Co., Ltd, Chengdu, China
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Liu WD, Hou HA, Li KJ, Qin A, Tsai CY, Sheng WH. Study Protocol of a Randomized Controlled Clinical Trial to Evaluate the Efficacy and Safety of Ropeginterferon Alfa-2b in COVID-19 Patients with Comorbidities. Adv Ther 2024; 41:847-856. [PMID: 38010606 DOI: 10.1007/s12325-023-02715-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/17/2023] [Indexed: 11/29/2023]
Abstract
INTRODUCTION Ropeginterferon alfa-2b represents a new-generation PEGylated interferon. It is approved for the treatment of polycythemia vera and shows promising anti-SARS-CoV-2 activities. OBJECTIVE This clinical study aims to evaluate the efficacy and safety of ropeginterferon alfa-2b in patients with coronavirus disease 2019 (COVID-19) and comorbidities. METHODS The randomized controlled study is designed to enroll adult patients with COVID-19 infection and comorbidities. Patients are non-responders to anti-SARS-CoV-2 drugs or not suitable to receive them. Comorbidities include hematologic cancer, solid tumor, and well-controlled autoimmune disease. Non-responders to anti-SARS-CoV-2 drugs are defined as having received treatment but have a Ct value < 30 at 14 days after symptom onset. Patients are randomized in a 1:1 ratio to receive ropeginterferon alfa-2b at 250 μg plus standard of care (SOC) or SOC alone. SARS-CoV-2 antigen test will be conducted at day 15 and day 29 visits to determine whether to administer additional ropeginterferon alfa-2b doses. Patients who are positive on the antigen test on days 15 and 29 will receive the second and third doses of ropeginterferon alfa-2b at 350 μg and 500 μg, respectively. Patients with a negative antigen test but a Ct value < 30 by reverse transcription polymerase chain reaction (RT-PCR) at days 15 and 29 are also administered the second (350 μg) and third (500 μg) doses. Patients at high risk of COVID-19 rebound/relapse, e.g., immunocompromised patients, will be given additional ropeginterferon alfa-2b doses even if the Ct is ≥ 30. Approximately 60 patients will be enrolled. PLANNED OUTCOMES The primary outcome is to compare the time from randomization to the achievement of Ct value ≥ 30 by RT-PCR between ropeginterferon alfa-2b and control groups. Our previous studies have shown safety and promising anti-SARS-CoV-2 activities in patients with moderate or severe COVID-19. This study will provide valuable data in patients with COVID-19 and comorbidities, for whom safe and effective treatment is urgently needed. TRIAL REGISTRATION NUMBER This trial is registered at ClinicalTrials.gov (Identifier NCT05808322).
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Affiliation(s)
- Wang-Da Liu
- Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 10002, Taiwan
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Hsin-An Hou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ko-Jen Li
- Division of Rheumatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Albert Qin
- Medical Research and Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan
| | - Chan-Yen Tsai
- Medical Research and Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan
| | - Wang-Huei Sheng
- Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 10002, Taiwan.
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan.
- School of Medicine, National Taiwan University College of Medicine, No. 1, Jen Ai Road, Section 1, Taipei, 10051, Taiwan.
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Lo CC, Chuang WL, Kuo HT, Chen WM, Qin A, Tsai CY, Huang YW, Chen CY. A therapeutic dose and its pharmacokinetics of ropeginterferon Alfa-2b for hepatitis C treatment. J Formos Med Assoc 2024; 123:55-61. [PMID: 37666718 DOI: 10.1016/j.jfma.2023.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/08/2023] [Accepted: 08/17/2023] [Indexed: 09/06/2023] Open
Abstract
AIM Ropeginterferon alfa-2b is a novel mono-pegylated proline-interferon. Its biweekly dosing schema has demonstrated tolerability and clinical efficacy for treating chronic hepatitis in previous clinical studies. This trial evaluates the pharmacokinetics of 400 μg ropeginterferon alfa-2b in patients with chronic hepatitis C virus (HCV) and provides the data to support the clinical utility of ropeginterferon alfa-2b at 400 μg. METHODS Seventeen patients with chronic HCV genotype 2 were enrolled to receive a single injection of 400 μg ropeginterferon alfa-2b plus 14-day treatment of ribavirin. Pharmacokinetics, safety, and HCV RNA reduction/clearance were assessed. RESULTS Tmax was 154.003 h and T1/2 was 114.273 h. The Cmax was 29.823 ng mL-1. AUClast was 9364.292 h∗ng mL-1 and AUCinf was 11084.317 h∗ng mL-1. All adverse events were mild or moderate, and there were no serious adverse events. A 1000-fold reduction in the geometric mean of HCV RNA was observed 14 d after the single injection of ropeginterferon alfa-2b. Two patients achieved clearance of HCV RNA, and the other five patients had HCV RNA levels lower than 200 IU mL-1. CONCLUSION Ropeginterferon alfa-2b at 400 μg led to PK exposures associated with safety and notable clinical activity in patients with chronic HCV. This study suggests that ropeginterferon alfa-2b at 400 μg is an acceptable dosing regimen for treating chronic HCV and also provides supporting data for the clinical use of ropeginterferon alfa-2b at a higher starting dose for other indications.
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Affiliation(s)
- Ching-Chu Lo
- Department of Internal Medicine, St. Martin De Porres Hospital, Chiayi, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsing-Tao Kuo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chi-Mei Medical Center - Yongkang, Tainan, Taiwan; School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wei-Ming Chen
- Division of Hepatogastroenterology, Department of Internal Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Albert Qin
- Medical Research and Clinical Operations, PharmaEssentia Corporation, Taiwan
| | - Chan-Yen Tsai
- Medical Research and Clinical Operations, PharmaEssentia Corporation, Taiwan
| | - Yi-Wen Huang
- Medical Research and Clinical Operations, PharmaEssentia Corporation, Taiwan; Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan; Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; School of Medicine, National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Chi-Yi Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan.
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Qin A, Wu CR, Ho MC, Tsai CY, Chen PJ. Sequential Therapy with Ropeginterferon Alfa-2b and Anti-Programmed Cell Death 1 Antibody for Inhibiting the Recurrence of Hepatitis B-Related Hepatocellular Carcinoma: From Animal Modeling to Phase I Clinical Results. Int J Mol Sci 2023; 25:433. [PMID: 38203603 PMCID: PMC10778875 DOI: 10.3390/ijms25010433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/23/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Hepatocellular carcinoma (HCC) usually recurs after curative surgical resection. Currently, no approved adjuvant therapy has been shown to reduce HCC recurrence rates. In this study, the in vivo effect of sequential combination treatment with recombinant mouse interferon-alpha (rmIFN-α) and an anti-mouse-PD1 antibody on hepatitis B virus (HBV) clearance in mice was evaluated. A Phase I clinical trial was then conducted to assess the safety, tolerability, and inhibitory activity of sequential therapy with ropeginterferon alfa-2b and nivolumab in patients with HCC recurrence who underwent curative surgery for HBV-related HCC. The animal modeling study showed that HBV suppression was significantly greater with the rmIFN-α and anti-PD1 sequential combination treatment in comparison with sole treatment with rmIFN-α or anti-PD1. In the Phase I study, eleven patients completed the sequential therapy with ropeginterferon alfa-2b every two weeks for six doses at 450 µg, followed by three doses of nivolumab every two weeks up to 0.75 mg/kg. A notable decrease in or clearance of HBV surface antigen was observed in two patients. The dose-limiting toxicity of grade 3 alanine transaminase and aspartate aminotransferase increases was observed in one patient. The maximum tolerated dose was then determined. To date, no HCC recurrence has been observed. The treatment modality was well tolerated. These data support the further clinical development of sequential combination therapy as a post-surgery prophylactic measure against the recurrence of HBV-related HCC.
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Affiliation(s)
- Albert Qin
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Chang-Ru Wu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 100, Taiwan
| | - Ming-Chih Ho
- Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Chan-Yen Tsai
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei 115, Taiwan
| | - Pei-Jer Chen
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 100, Taiwan
- Hepatitis Research Center, National Taiwan University Hospital, Taipei 100, Taiwan
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Zahmanova G, Takova K, Tonova V, Koynarski T, Lukov LL, Minkov I, Pishmisheva M, Kotsev S, Tsachev I, Baymakova M, Andonov AP. The Re-Emergence of Hepatitis E Virus in Europe and Vaccine Development. Viruses 2023; 15:1558. [PMID: 37515244 PMCID: PMC10383931 DOI: 10.3390/v15071558] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Hepatitis E virus (HEV) is one of the leading causes of acute viral hepatitis. Transmission of HEV mainly occurs via the fecal-oral route (ingesting contaminated water or food) or by contact with infected animals and their raw meat products. Some animals, such as pigs, wild boars, sheep, goats, rabbits, camels, rats, etc., are natural reservoirs of HEV, which places people in close contact with them at increased risk of HEV disease. Although hepatitis E is a self-limiting infection, it could also lead to severe illness, particularly among pregnant women, or chronic infection in immunocompromised people. A growing number of studies point out that HEV can be classified as a re-emerging virus in developed countries. Preventative efforts are needed to reduce the incidence of acute and chronic hepatitis E in non-endemic and endemic countries. There is a recombinant HEV vaccine, but it is approved for use and commercially available only in China and Pakistan. However, further studies are needed to demonstrate the necessity of applying a preventive vaccine and to create conditions for reducing the spread of HEV. This review emphasizes the hepatitis E virus and its importance for public health in Europe, the methods of virus transmission and treatment, and summarizes the latest studies on HEV vaccine development.
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Affiliation(s)
- Gergana Zahmanova
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria
- Department of Technology Transfer and IP Management, Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Katerina Takova
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Valeria Tonova
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Tsvetoslav Koynarski
- Department of Animal Genetics, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria
| | - Laura L Lukov
- Faculty of Sciences, Brigham Young University-Hawaii, Laie, HI 96762, USA
| | - Ivan Minkov
- Department of Technology Transfer and IP Management, Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
- Institute of Molecular Biology and Biotechnologies, 4108 Markovo, Bulgaria
| | - Maria Pishmisheva
- Department of Infectious Diseases, Pazardzhik Multiprofile Hospital for Active Treatment, 4400 Pazardzhik, Bulgaria
| | - Stanislav Kotsev
- Department of Infectious Diseases, Pazardzhik Multiprofile Hospital for Active Treatment, 4400 Pazardzhik, Bulgaria
| | - Ilia Tsachev
- Department of Microbiology, Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria
| | - Magdalena Baymakova
- Department of Infectious Diseases, Military Medical Academy, 1606 Sofia, Bulgaria
| | - Anton P Andonov
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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Chien RN. State-of-the-Art Chronic Hepatitis Viruses Research in Asia. Viruses 2023; 15:1172. [PMID: 37243258 PMCID: PMC10220554 DOI: 10.3390/v15051172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Approximately 400 million people worldwide are living with chronic viral hepatitis [...].
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Affiliation(s)
- Rong-Nan Chien
- Division of Hepatology, Department of Hepatology and Gastroenterology, Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan;
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
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Jin J, Qin A, Zhang L, Shen W, Wang W, Zhang J, Li Y, Wu D, Xiao Z. A phase II trial to assess the efficacy and safety of ropeginterferon α-2b in Chinese patients with polycythemia vera. Future Oncol 2023. [PMID: 37129584 DOI: 10.2217/fon-2022-1141] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
Ropeginterferon α-2b is a mono-PEGylated proline-interferon for the treatment of polycythemia vera (PV). This drug is used biweekly with a starting dose of 100 μg (50 μg if patients receiving hydroxyurea) and 50 μg increments up to a maximum dose of 500 μg. Increasing evidence indicates that patients can tolerate higher starting doses of ropeginterferon α-2b. This phase II trial utilizes 250 μg as the starting dose, 350 μg at week 2 and 500 μg at week 4 as the target dose. Doses can be adjusted according to tolerability. This study assesses the safety, efficacy and molecular response of ropeginterferon α-2b in Chinese patients with PV utilizing the 250-350-500 μg dosing schema. This study will be used to support the application of a biologics license for PV treatment in China.
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Affiliation(s)
- Jie Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Albert Qin
- PharmaEssentia Corporation, Taipei, Taiwan
| | - Lei Zhang
- Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Weihong Shen
- PharmaEssentia Biotech (Beijing) Ltd, Beijing, China
| | - Wei Wang
- PharmaEssentia Biotech (Beijing) Ltd, Beijing, China
| | | | - Yaning Li
- PharmaEssentia Biotech (Beijing) Ltd, Beijing, China
| | - Daoxiang Wu
- PharmaEssentia Biotech (Beijing) Ltd, Beijing, China
| | - Zhijian Xiao
- Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
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Qin A. An anti-cancer surveillance by the interplay between interferon-beta and retinoblastoma protein RB1. Front Oncol 2023; 13:1173467. [PMID: 37182173 PMCID: PMC10174298 DOI: 10.3389/fonc.2023.1173467] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
Interferon-beta (IFN-β), an extracellular cytokine that initiates signaling pathways for gene regulation, has been demonstrated to function as a tumor suppressor protein through lentiviral gene transduction. In this article, I review the relevant previous works and propose a cell cycle-based, tumor suppressor protein-mediated mechanism of anti-cancer surveillance. IFN-β induces a tumor cell cycle alteration that leads to S phase accumulation, senescence entry, and a loss of tumorigenicity in solid tumor cells. IFN-β does not show a significant cell cycle effect in their normal counterparts. Retinoblastoma protein RB1, another tumor suppressor protein, tightly controls the cell cycle and differentiation of normal cells, preventing them from being significantly impacted by the IFN-β effect. The interplay between IFN-β and RB1 acts as a mechanism of cell cycle-based, tumor suppressor protein-mediated anti-cancer surveillance that can selectively suppress solid tumor or proliferating transformed cells from the loss of control leading to cancer. This mechanism has important implications for the treatment of solid tumors.
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Affiliation(s)
- Albert Qin
- Medical Research & Clinical Operations, PharmaEssentia Corporation, Taipei, Taiwan
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Cole K, Al-Kadhimi Z, Talmadge JE. Highlights into historical and current immune interventions for cancer. Int Immunopharmacol 2023; 117:109882. [PMID: 36848790 PMCID: PMC10355273 DOI: 10.1016/j.intimp.2023.109882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 03/01/2023]
Abstract
Immunotherapy is an additional pillar when combined with traditional standards of care such as chemotherapy, radiotherapy, and surgery for cancer patients. It has revolutionized cancer treatment and rejuvenated the field of tumor immunology. Several types of immunotherapies, including adoptive cellular therapy (ACT) and checkpoint inhibitors (CPIs), can induce durable clinical responses. However, their efficacies vary, and only subsets of cancer patients benefit from their use. In this review, we address three goals: to provide insight into the history of these approaches, broaden our understanding of immune interventions, and discuss current and future approaches. We highlight how cancer immunotherapy has evolved and discuss how personalization of immune intervention may address present limitations. Cancer immunotherapy is considered a recent medical achievement and in 2013 was selected as the "Breakthrough of the Year" by Science. While the breadth of immunotherapeutics has been rapidly expanding, to include the use of chimeric antigen receptor (CAR) T-cell therapy and immune checkpoint inhibitor (ICI) therapy, immunotherapy dates back over 3000 years. The expansive history of immunotherapy, and related observations, have resulted in several approved immune therapeutics beyond the recent emphasis on CAR-T and ICI therapies. In addition to other classical forms of immune intervention, including human papillomavirus (HPV), hepatitis B, and the Mycobacterium bovis Bacillus Calmette-Guérin (BCG) tuberculosis vaccines, immunotherapies have had a broad and durable impact on cancer therapy and prevention. One classic example of immunotherapy was identified in 1976 with the use of intravesical administration of BCG in patients with bladder cancer; resulting in a 70 % eradication rate and is now standard of care. However, a greater impact from the use of immunotherapy is documented by the prevention of HPV infections that are responsible for 98 % of cervical cancer cases. In 2020, the World Health Organization (WHO) estimated that 341,831 women died from cervical cancer [1]. However, administration of a single dose of a bivalent HPV vaccine was shown to be 97.5 % effective in preventing HPV infections. These vaccines not only prevent cervical squamous cell carcinoma and adenocarcinoma, but also oropharyngeal, anal, vulvar, vaginal, and penile squamous cell carcinomas. The breadth, response and durability of these vaccines can be contrasted with CAR-T-cell therapies, which have significant barriers to their widespread use including logistics, manufacturing limitations, toxicity concerns, financial burden and lasting remissions observed in only 30 to 40 % of responding patients. Another, recent immunotherapy focus are ICIs. ICIs are a class of antibodies that can increase the immune responses against cancer cells in patients. However, ICIs are only effective against tumors with a high mutational burden and are associated with a broad spectrum of toxicities requiring interruption of administration and/or administration corticosteroids; both of which limit immune therapy. In summary, immune therapeutics have a broad impact worldwide, utilizing numerous mechanisms of action and when considered in their totality are more effective against a broader range of tumors than initially considered. These new cancer interventions have tremendous potential notability when multiple mechanisms of immune intervention are combined as well as with standard of care modalities.
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Affiliation(s)
- Kathryn Cole
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Zaid Al-Kadhimi
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - James E Talmadge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198-5950, USA; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Blaney H, Khalid M, Heller T, Koh C. Epidemiology, presentation, and therapeutic approaches for hepatitis D infections. Expert Rev Anti Infect Ther 2023; 21:127-142. [PMID: 36519386 PMCID: PMC9905306 DOI: 10.1080/14787210.2023.2159379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Chronic Hepatitis D virus (HDV) infection remains an important global public health problem, with a changing epidemiological landscape over the past decade along with widespread implementation of hepatitis B vaccination and human migration. The landscape of HDV treatments has been changing, with therapies that have been under development for the last decade now in late stage clinical trials. The anticipated availability of these new therapies will hopefully replace the current therapies which are minimally effective. AREAS COVERED This narrative review discusses the clinical course, screening and diagnosis, transmission risk factors, epidemiology, current and investigational therapies, and liver transplantation in HDV. Literature review was performed using PubMed and ClinicalTrials.gov and includes relevant articles from 1977 to 2022. EXPERT OPINION HDV infection is an important global public health issue with a true prevalence that is still unknown. The distribution of HDV infection has changed globally with the availability of HBV vaccination and patterns of human migration. As HDV infection is associated with accelerated disease courses and poor outcomes, the global community needs to agree upon a uniform HDV screening strategy to understand the truth of global prevalence such that new therapies can target appropriate individuals as they become available in the future.
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Affiliation(s)
- Hanna Blaney
- Digestive Diseases Branch, National Institute of Diabetes & Digestive & Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Mian Khalid
- Digestive Diseases Branch, National Institute of Diabetes & Digestive & Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Theo Heller
- Liver Diseases Branch, National Institute of Diabetes & Digestive & Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Christopher Koh
- Liver Diseases Branch, National Institute of Diabetes & Digestive & Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
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Zheng JR, Wang ZL, Feng B. Hepatitis B functional cure and immune response. Front Immunol 2022; 13:1075916. [PMID: 36466821 PMCID: PMC9714500 DOI: 10.3389/fimmu.2022.1075916] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/02/2022] [Indexed: 07/30/2023] Open
Abstract
Hepatitis B virus (HBV) is a hepatotropic virus, which damage to hepatocytes is not direct, but through the immune system. HBV specific CD4+ T cells can induce HBV specific B cells and CD8+ T cells. HBV specific B cells produce antibodies to control HBV infection, while HBV specific CD8+ T cells destroy infected hepatocytes. One of the reasons for the chronicity of HBV infection is that it cannot effectively activate adoptive immunity and the function of virus specific immune cells is exhausted. Among them, virus antigens (including HBV surface antigen, e antigen, core antigen, etc.) can inhibit the function of immune cells and induce immune tolerance. Long term nucleos(t)ide analogues (NAs) treatment and inactive HBsAg carriers with low HBsAg level may "wake up" immune cells with abnormal function due to the decrease of viral antigen level in blood and liver, and the specific immune function of HBV will recover to a certain extent, thus becoming the "dominant population" for functional cure. In turn, the functional cure will further promote the recovery of HBV specific immune function, which is also the theoretical basis for complete cure of hepatitis B. In the future, the complete cure of chronic HBV infection must be the combination of three drugs: inhibiting virus replication, reducing surface antigen levels and specific immune regulation, among which specific immunotherapy is indispensable. Here we review the relationship, mechanism and clinical significance between the cure of hepatitis B and immune system.
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Affiliation(s)
| | | | - Bo Feng
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University People’s Hospital, Peking University Hepatology Institute, Beijing, China
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