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Chen J, Lei D, Cao P, He J, Zhang L. Efficacy and safety of brivudine for the treatment of herpes zoster: a systematic review and meta-analysis. J DERMATOL TREAT 2024; 35:2355256. [PMID: 38811010 DOI: 10.1080/09546634.2024.2355256] [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: 09/04/2023] [Accepted: 04/01/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND AND OBJECTIVE Brivudine has been used in herpes zoster (HZ) treatment for years, but the safety and efficacy of brivudine are inconclusive. Here we perform a meta-analysis to assess the efficacy, safety, incidence of postherpetic neuralgia of brivudine. METHODS Data of randomized controlled Trials (RCTS) were obtained from the databases of both English (PubMed, Embase, and Cochrane Library) and Chinese (China National Knowledge Infrastructure, China Science Journal Database, and WanFang Database) literatures from inception to 12 September 2022. Meta-analyses of efficacy and safety of Brivudine for the treatment of herpes zoster for RCTS were conducted. RESULTS The analyses included seven RCTS (2095 patients in experimental group and 2076 patients in control group) in the treatment of HZ with brivudine. It suggested that the brivudine group was superior to the control group in terms of efficacy (p = .0002) and incidence of postherpetic neuralgia (p = .04). But the incidence of adverse reactions has no significant difference between the brivudine and the control groups (p = .22). In addition, subgroup analysis of adverse events also showed that brivudine was about the same safety as other modalities in the treatment of HZ (p > .05). CONCLUSIONS Brivudine is effective for HZ. However, the evidence on the safety of brivudine is insufficient.
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Affiliation(s)
- Jiaxing Chen
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Dongyun Lei
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
- Department of Dermatology, Tianjin lnstitute of lntegrative Dermatology, Tianjin, China
| | - Peng Cao
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
- Department of Dermatology, Tianjin lnstitute of lntegrative Dermatology, Tianjin, China
| | - Junchen He
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
- Department of Dermatology, Tianjin lnstitute of lntegrative Dermatology, Tianjin, China
| | - Litao Zhang
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
- Department of Dermatology, Tianjin lnstitute of lntegrative Dermatology, Tianjin, China
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Nguyen PHA, Fukushi S, Yamada S, Harada S, Yoshikawa T, Kinoshita H, Kawahara M, Ogawa T, Ebihara H, Moi ML, Saijo M. Analysis of antiviral drug properties of thymidine kinase of herpes B virus using recombinant herpes simplex virus 1. Microbiol Spectr 2024; 12:e0309123. [PMID: 38095468 PMCID: PMC10783082 DOI: 10.1128/spectrum.03091-23] [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: 09/11/2023] [Accepted: 11/25/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Zoonotic infection of humans with herpes B virus (BV) causes severe neurological diseases. Acyclovir (ACV) and ganciclovir (GCV), most frequently used as anti-herpes drugs, are recommended for prophylaxis and therapy in human BV infection. In this study, we examined the property of BV thymidine kinase (TK) against anti-herpes drugs using a recombinant herpes simplex virus type 1 (HSV-1) carrying BV TK gene. We found that HSV-1 carrying BV TK was similarly sensitive to GCV as HSV-1 carrying varicella zoster virus TK. In addition, we demonstrated that BV TK was not mutated in the GCV- and ACV-resistant HSV-1 carrying BV TK, suggesting that ACV- or GCV-resistant BV might be rare during treatment with these antiviral drugs. These data can provide a new insight into the properties of BV TK in terms of the development of drug resistance.
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Affiliation(s)
- Phu Hoang Anh Nguyen
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Developmental Medical Sciences, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Shuetsu Fukushi
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Souichi Yamada
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shizuko Harada
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomoki Yoshikawa
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hitomi Kinoshita
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Madoka Kawahara
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takuma Ogawa
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hideki Ebihara
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Meng Ling Moi
- Department of Developmental Medical Sciences, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
- Health and Welfare Bureau, Sapporo City, Hokkaido, Japan
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Vogel C, Wetzel L, Wutzler P, Gruhn B. Treatment with Brivudine in Immunocompromised Pediatric Patients with Herpes Zoster. Chemotherapy 2023; 68:222-227. [PMID: 37231819 DOI: 10.1159/000531034] [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: 02/04/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Herpes zoster (HZ) is caused by endogenous reactivation of latent varicella-zoster virus (VZV) that persists in sensory ganglia after primary infection. The incidence and severity of HZ increase during immunosuppression. Especially, immunocompromised patients are at high risk of developing a cutaneous rash and suffering from delayed healing of lesions. Bromovinyl deoxyuridine (brivudine), one of the most potent oral inhibitors of VZV replication, is widely used in the therapy of HZ in adult patients, particularly in Europe. In this study, we investigated the efficacy of brivudine in immunocompromised children to provide an outpatient treatment option. METHODS In this retrospective study, we included 64 immunocompromised pediatric patients with a median age of 14 years. Forty-seven patients received immunosuppressive therapy as part of hematopoietic stem cell transplantation and 17 patients as part of chemotherapy. Primary diagnosis was made clinically by examining the nature and the localization of the skin lesions. Laboratory confirmation was conducted based on the detection of VZV DNA in vesicle fluid and blood samples. Brivudine was administered orally at a single dose of 2 mg/kg per day. We monitored the patients' response for the full time of treatment and observed the time of full crusting of lesions, loss of crusts, and any adverse effects that occurred. RESULTS Patients received medication for 7-21 days (median: 14 days). All children responded promptly to antiviral treatment and recovered completely from their HZ infections without complications. Crusting of lesions was reached after 3-14 days (median: 6 days). Full healing of skin lesions was ascertained within 7-21 days (median: 12 days). Overall, brivudine therapy was well tolerated. No clinical side effects during or after the treatment were observed. High compliance was achieved due to the once-daily dosing regimen. All patients were treated in an outpatient manner. CONCLUSION Oral brivudine was a very effective and well-tolerated therapy in immunocompromised children with HZ infection. The oral administration offers the potential for outpatient treatment of HZ in these patients.
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Affiliation(s)
- Clara Vogel
- Department of Pediatrics, Jena University Hospital, Jena, Germany
| | - Laura Wetzel
- Department of Pediatrics, Jena University Hospital, Jena, Germany
| | - Peter Wutzler
- Section of Experimental Virology, Institute of Medical Microbiology, Jena University Hospital, Jena, Germany
| | - Bernd Gruhn
- Department of Pediatrics, Jena University Hospital, Jena, Germany
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De Clercq E. The development of BVDU: An odyssey. Antivir Chem Chemother 2023; 31:20402066231152971. [PMID: 36710501 PMCID: PMC9902897 DOI: 10.1177/20402066231152971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Brivudin, ((E)-5-(2-bromovinyl)-2'-deoxyuridine (BVDU) can be considered the gold standard for the treatment of varicella-zoster virus (VZV) infections, such as herpes zoster (shingles). It is available for clinical use in most European countries (except for the UK) and over the whole world (except for the US and Canada). Besides VZV its activity spectrum also includes various other herpesviruses, such as herpes simplex virus type 1 (HSV-1). Its activity against VZV and HSV-1 depends on phosphorylation by the virus-encoded thymidine kinase (TK). In its active form (BVDU TP or BVDU 5'-triphosphate), it can act as both substrate and inhibitor of the viral (i.e., HSV-1) DNA polymerase. It has proven to be effective against herpes zoster, including post-herpetic neuralgia (PHN). It is contra-indicated in patients concomitantly treated by 5-fluorouracil (FU), since its degradation product, (E)-5-(2-bromovinyl)uracil, is inhibitory to the catabolism of FU, which may enhance the toxicity of the latter. A new compound, the bicyclic nucleoside analogue (BCNA) Cf-1743, has been described, which is a more potent inhibitor of VZV replication than BVDU and which does not interfere with the catabolism of FU. It is applicable orally, as its 5'-valine ester FV-100 (Fermavir), but has not (yet) been marketed for clinical use.
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Affiliation(s)
- Erik De Clercq
- Erik De Clercq, Department of Microbiology, Immunology & Transplantation, Rega Institute for Medical Research, KU Leuven, Belgium.
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Optimization of Thymidine Kinase-Based Safety Switch for Neural Cell Therapy. Cells 2022; 11:cells11030502. [PMID: 35159311 PMCID: PMC8834506 DOI: 10.3390/cells11030502] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 11/17/2022] Open
Abstract
Cell therapies based on pluripotent stem cells (PSC), have opened new therapeutic strategies for neurodegenerative diseases. However, insufficiently differentiated PSC can lead to tumor formation. Ideally, safety switch therapies should selectively kill proliferative transplant cells while preserving post-mitotic neurons. In this study, we evaluated the potential of nucleoside analogs and thymidine kinase-based suicide genes. Among tested thymidine kinase variants, the humanized SR39 (SR39h) variant rendered cells most sensitive to suicide induction. Unexpectedly, post-mitotic neurons with ubiquitous SR39h expression were killed by ganciclovir, but were spared when SR39h was expressed under the control of the cell cycle-dependent Ki67 promoter. The efficacy of six different nucleoside analogs to induce cell death was then evaluated. Penciclovir (PCV) showed the most interesting properties with an efficiency comparable to ganciclovir (GCV), but low toxicity. We tested three nucleoside analogs in vivo: at concentrations of 40 mg/kg/day, PCV and GCV prevented tumor formation, while acyclovir (ACV) did not. In summary, SR39h under the control of a cell cycle-dependent promoter appears most efficient and selective as safety switch for neural transplants. In this setting, PCV and GCV are efficient inducers of cell death. Because of its low toxicity, PCV might become a preferred alternative to GCV.
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Abstract
Human herpesviruses are large double-stranded DNA viruses belonging to the Herpesviridae family. The main characteristics of these viruses are their ability to establish a lifelong latency into the host with a potential to reactivate periodically. Primary infections and reactivations with herpesviruses are responsible for a large spectrum of diseases and may result in severe complications in immunocompromised patients. The viral DNA polymerase is a key enzyme in the replicative cycle of herpesviruses, and the target of most antiviral agents (i.e., nucleoside, nucleotide and pyrophosphate analogs). However, long-term prophylaxis and treatment with these antivirals may lead to the emergence of drug-resistant isolates harboring mutations in genes encoding viral enzymes that phosphorylate drugs (nucleoside analogs) and/or DNA polymerases, with potential cross-resistance between the different analogs. Drug resistance mutations mainly arise in conserved regions of the polymerase and exonuclease functional domains of these enzymes. In the polymerase domain, mutations associated with resistance to nucleoside/nucleotide analogs may directly or indirectly affect drug binding or incorporation into the primer strand, or increase the rate of extension of DNA to overcome chain termination. In the exonuclease domain, mutations conferring resistance to nucleoside/nucleotide analogs may reduce the rate of excision of incorporated drug, or continue DNA elongation after drug incorporation without excision. Mutations associated with resistance to pyrophosphate analogs may alter drug binding or the conformational changes of the polymerase domain required for an efficient activity of the enzyme. Novel herpesvirus inhibitors with a potent antiviral activity against drug-resistant isolates are thus needed urgently.
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Affiliation(s)
| | - Guy Boivin
- CHU de Québec-Université Laval, Quebec City, QC, Canada.
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Li G, Xu M, Yue T, Gu W, Tan L. Life-long passion for antiviral research and drug development: 80th birthday of Prof. Dr. Erik De Clercq. Biochem Pharmacol 2021; 185:114485. [PMID: 33617841 PMCID: PMC7895689 DOI: 10.1016/j.bcp.2021.114485] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 12/15/2022]
Abstract
Since the 1950s, great efforts have been made to develop antiviral agents against many infectious diseases such as human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), human cytomegalovirus (HCMV), herpes simplex virus (HSV), and varicella-zoster virus (VZV). Among the list of nearly 106 antiviral agents approved in the past five decades, Prof. Erik De Clercq has contributed to the development of 7 antiviral drugs: tenofovir disoproxil fumarate (Viread®) for HIV and HBV treatment, tenofovir alafenamide (Vemlidy®) for HIV and HBV treatment, brivudine (Zostex®) for HSV-1 and VZV treatment, valacyclovir (Valtrex®) for HSV and VZV treatment, adefovir dipivoxil (Hepsera®) for HBV treatment, stavudine (Zerit®) for HIV treatment, and cidofovir (Vistide®) for treating HCMV retinitis in AIDS patients. In addition to the above antiviral drugs, his contributions include two anti-cancer drugs: rabacfosadine (Tanovea®-CA1) for canine lymphoma and plerixafor (Mozobil®) for multiple myeloma and non-Hodgkin's lymphoma. These achievements are driven by his life-long passions for antiviral research and successful collaborations worldwide. To honor the 80th birthday of Prof. Erik De Clercq, this study highlights his scientific achievements and the importance of life-long passions and collaborations in the success of antiviral research and drug development.
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Affiliation(s)
- Guangdi Li
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha 410011, China; Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Ming Xu
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Tingting Yue
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Weijie Gu
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven 3000, Belgium
| | - Li Tan
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha 410011, China.
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Piret J, Boivin G. Antiviral Drugs Against Herpesviruses. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1322:1-30. [PMID: 34258735 DOI: 10.1007/978-981-16-0267-2_1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The discovery of the nucleoside analogue, acyclovir, represented a milestone in the management of infections caused by herpes simplex virus and varicella-zoster virus. Ganciclovir, another nucleoside analogue, was then used for the management of systemic and organ-specific human cytomegalovirus diseases. The pyrophosphate analogue, foscarnet, and the nucleotide analogue, cidofovir, have been approved subsequently and constitute the second-line antiviral drugs. However, the viral DNA polymerase is the ultimate target of all these antiviral agents with a possible emergence of cross-resistance between these drugs. Recently, letermovir that targets the viral terminase complex was approved for the prophylaxis of human cytomegalovirus infections in hematopoietic stem cell transplant recipients. Other viral targets such as the protein kinase and the helicase-primase complex are also evaluated for the development of novel potent inhibitors against herpesviruses.
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Affiliation(s)
| | - Guy Boivin
- CHU de Québec-Laval University, Quebec City, QC, Canada.
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9
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Gross GE, Eisert L, Doerr HW, Fickenscher H, Knuf M, Maier P, Maschke M, Müller R, Pleyer U, Schäfer M, Sunderkötter C, Werner RN, Wutzler P, Nast A. [S2k guideline for the diagnosis and therapy of zoster and post-zoster neuralgia]. GMS INFECTIOUS DISEASES 2020; 8:Doc01. [PMID: 32373426 PMCID: PMC7187398 DOI: 10.3205/id000045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Diese Leitlinie richtet sich an Dermatologen, Ophthalmologen, HNO-Ärzte, Pädiater, Neurologen, Virologen sowie Infektiologen, Anästhesisten und Allgemeinmediziner in Klinik und Praxis und dient zur Information für andere medizinische Fachrichtungen, die an der Behandlung des Zoster beteiligt sind. Darüber hinaus soll die Leitlinie Kostenträgern und politischen Entscheidungsträgern zur Orientierung dienen. Die Leitlinie wurde im formellen Konsensusverfahren (S2k) von Dermatologen, Virologen/Infektiologen, Ophthalmologen, HNO-Ärzten, Neurologen, Pädiatern und Anästhesisten/Schmerzmedizinern erstellt. Die Leitlinie stellt einen Überblick über die klinische und molekulare Diagnostik sowie den Antigennachweis, die Antikörperkultur und Viruskultur dar. Diagnostisch besondere Situationen und komplizierte Verläufe der Erkrankung finden ebenfalls Berücksichtigung. Die antivirale Therapie des Zoster und der Postzosterneuralgie wird im Allgemeinen und für besondere Situationen dargelegt. Detaillierte Angaben zur Schmerzbehandlung finden Erwähnung und sind in einer Übersicht dargestellt. Ebenso werden die lokaltherapeutischen Maßnahmen thematisiert.
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Affiliation(s)
- Gerd E. Gross
- Universitätsmedizin Rostock, Universitätsklinik für Dermatologie und Venerologie, Rostock, Deutschland
| | - Lisa Eisert
- Vivantes Klinikum Neukölln, Klinik für Dermatologie und Venerologie, Berlin, Deutschland
| | - Hans Wilhelm Doerr
- Universitätsklinikum Frankfurt, Institut für Medizinische Virologie, Frankfurt (Main), Deutschland
| | - Helmut Fickenscher
- Christian-Albrechts-Universität zu Kiel und Universitätsklinikum Schleswig-Holstein, Institut für Infektionsmedizin, Kiel, Deutschland
| | - Markus Knuf
- Helios Dr. Horst Schmidt Kliniken Wiesbaden, Kinder- und Jugendklinik, Wiesbaden, Deutschland
| | - Philip Maier
- Universitätsklinikum Freiburg, Klinik für Augenheilkunde, Freiburg, Deutschland
| | - Matthias Maschke
- Krankenhaus der Barmherzigen Brüder Trier, Klinik für Neurologie, Neurophysiologie und neurologische Frührehabilitation, Trier, Deutschland
| | - Rainer Müller
- Medizinische Fakultät Carl Gustav Carus der Technischen Universität Dresden, Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Dresden, Deutschland
| | - Uwe Pleyer
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augenklinik, Berlin, Deutschland
| | - Michael Schäfer
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Klinik für Anästhesiologie und operative Intensivmedizin, Berlin, Deutschland
| | - Cord Sunderkötter
- Universitätsklinikum Halle (Saale), Universitätsklinik und Poliklinik für Dermatologie und Venerologie, Halle (Saale), Deutschland
| | - Ricardo N. Werner
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Dermatology, Venereology and Allergy, Division of Evidence-based Medicine (dEBM), Berlin, Deutschland
| | - Peter Wutzler
- Universitätsklinikum Friedrich-Schiller-Universität Jena, Virologie, Jena, Deutschland
| | - Alexander Nast
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Dermatology, Venereology and Allergy, Division of Evidence-based Medicine (dEBM), Berlin, Deutschland,*To whom correspondence should be addressed: Alexander Nast, Charité – Universitätsmedizin Berlin Department of Dermatology, Venereology und Allergy Division of Evidence-based Medicine (dEBM), Charitéplatz 1, 10117 Berlin, Deutschland, Tel.: +49(0)30-450618313, Fax: +49(0)30-4507518977, E-mail:
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Yoshimura T, Kawasaki T, Shirota A, Saeki M, Okada Y, Okada H. Valacyclovir-induced Neurotoxicity in a Patient with a Preserved Renal Function. Intern Med 2018; 57:3213-3216. [PMID: 29877263 PMCID: PMC6262714 DOI: 10.2169/internalmedicine.0403-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Valacyclovir, a prodrug of acyclovir, is the first-line treatment for herpes zoster, but the renal function must be monitored, because acyclovir is metabolized by the kidneys. We herein report a case of valacyclovir-induced neurotoxicity with no preceding renal impairment. An 88-year-old man was admitted because of an impaired consciousness after the administration of valacyclovir at 3,000 mg daily for herpes zoster on the chest. His consciousness level gradually improved with hydration and valacyclovir withdrawal. It was later confirmed that the level of acyclovir on admission had been 35.45 μg/mL in the blood and 36.45 μg/mL in the cerebrospinal fluid.
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Affiliation(s)
- Takashi Yoshimura
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
| | - Tatsuya Kawasaki
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
| | - Ayumi Shirota
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
| | - Masashi Saeki
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
| | - Yuki Okada
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
| | - Hiroshi Okada
- Department of General Internal Medicine, Matsushita Memorial Hospital, Japan
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11
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Werner RN, Steinhorst NI, Nast A, Pleyer U. Diagnostik und Management des Herpes zoster ophthalmicus. SPEKTRUM DER AUGENHEILKUNDE 2018. [DOI: 10.1007/s00717-018-0408-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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14
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Werner RN, Nikkels AF, Marinović B, Schäfer M, Czarnecka-Operacz M, Agius AM, Bata-Csörgő Z, Breuer J, Girolomoni G, Gross GE, Langan S, Lapid-Gortzak R, Lesser TH, Pleyer U, Sellner J, Verjans GM, Wutzler P, Dressler C, Erdmann R, Rosumeck S, Nast A. European consensus-based (S2k) Guideline on the Management of Herpes Zoster - guided by the European Dermatology Forum (EDF) in cooperation with the European Academy of Dermatology and Venereology (EADV), Part 2: Treatment. J Eur Acad Dermatol Venereol 2016; 31:20-29. [PMID: 27579792 DOI: 10.1111/jdv.13957] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 08/12/2016] [Indexed: 11/29/2022]
Abstract
Herpes zoster (HZ, shingles) is a frequent medical condition which may severely impact the quality of life of affected patients. Different therapeutic approaches to treat acute HZ are available. The aim of this European project was the elaboration of a consensus-based guideline on the management of patients who present with HZ, considering different patient populations and different localizations. This interdisciplinary guideline aims at an improvement of the outcomes of the acute HZ management concerning disease duration, acute pain and quality of life of the affected patients and at a reduction in the incidence of postherpetic neuralgia (PHN) and other complications. The guideline development followed a structured and pre-defined process, considering the quality criteria for guidelines development as suggested by the AGREE II instrument. The steering group was responsible for the planning and the organization of the guideline development process (Division of Evidence-Based Medicine, dEBM). The expert panel was nominated by virtue of clinical expertise and/or scientific experience and included experts from the fields of dermatology, virology/infectiology, ophthalmology, otolaryngology, neurology and anaesthesiology. Recommendations for clinical practice were formally consented during the consensus conference, explicitly considering different relevant aspects. The guideline was approved by the commissioning societies after an extensive internal and external review process. In this second part of the guideline, therapeutic interventions have been evaluated. The expert panel formally consented recommendations for the treatment of patients with HZ (antiviral medication, pain management, local therapy), considering various clinical situations. Users of the guideline must carefully check whether the recommendations are appropriate for the context of intended application. In the setting of an international guideline, it is generally important to consider different national approaches and legal circumstances with regard to the regulatory approval, availability and reimbursement of diagnostic and therapeutic interventions.
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Affiliation(s)
- R N Werner
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - A F Nikkels
- Department of Dermatology, University Medical Center of Liège, Liège, Belgium
| | - B Marinović
- Department of Dermatology and Venereology, University Hospital Center Zagreb, University of Zagreb School of Medicine, Zagreb, Croatia
| | - M Schäfer
- Department of Anesthesiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Czarnecka-Operacz
- Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | - A M Agius
- Department of Otorhinolaryngology, The Medical School, University of Malta, Msida, Malta
| | - Z Bata-Csörgő
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - J Breuer
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - G Girolomoni
- Department of Medicine, Section of Dermatology and Venereology, University of Verona, Verona, Italy
| | - G E Gross
- Department of Dermatology and Venerology, Universitätsklinik Rostock, Rostock, Germany
| | - S Langan
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - R Lapid-Gortzak
- Department of Ophthalmology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - T H Lesser
- Department of Otolaryngology, University Hospital Aintree NHS Foundation Trust, Liverpool, UK
| | - U Pleyer
- Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - J Sellner
- Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria
| | - G M Verjans
- Department of Viroscience, Erasmus MC, Rotterdam, The Netherlands
| | - P Wutzler
- Department of Virology and Antiviral Therapy, Jena University Hospital, Jena, Germany
| | - C Dressler
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - R Erdmann
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - S Rosumeck
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - A Nast
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
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15
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Hornig J, McGregor A. Design and development of antivirals and intervention strategies against human herpesviruses using high-throughput approach. Expert Opin Drug Discov 2014; 9:891-915. [DOI: 10.1517/17460441.2014.922538] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Abstract
Herpes zoster is caused by reactivation from previous varicella zoster virus (VZV) infection, and affects millions of people worldwide. It primarily affects older adults and those with immune system dysfunction, most likely as a result of reduced or lost VZV-specific cell-mediated immunity. Complications include post-herpetic neuralgia, a potentially debilitating and chronic pain syndrome. Current treatment of herpes zoster and post-herpetic neuralgia involves antiviral agents and analgesics, and is associated with significant economic cost. Results from several clinical trials have determined that a live, attenuated VZV vaccine using the Oka/Merck strain (Zostavax) is safe, elevates VZV-specific cell-mediated immunity, and significantly reduces the incidence of herpes zoster and post-herpetic neuralgia in people over 60 years of age. Regulatory approval has recently been obtained and once launched, it is expected that this vaccine will significantly reduce the morbidity and financial costs associated with herpes zoster. Durability of vaccine response and possible booster vaccination will still need to be determined.
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Affiliation(s)
- Mark Holodniy
- VA Palo Alto Health Care System, 3801 Miranda Ave. (132), Palo Alto, CA 94306, USA.
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17
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Lin R, Liu Q. Diagnosis and treatment of viral diseases in recipients of allogeneic hematopoietic stem cell transplantation. J Hematol Oncol 2013; 6:94. [PMID: 24341630 PMCID: PMC3878524 DOI: 10.1186/1756-8722-6-94] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Accepted: 11/30/2013] [Indexed: 11/11/2022] Open
Abstract
Viral infections are important causes of morbidity and mortality after allogeneic stem cell hematopoietic transplantation (allo-HSCT). Although most viral infections present with asymptomatic or subclinical manifestations, viruses may result in fatal complications in severe immunocompromised recipients. Reactivation of latent viruses, such as herpesviruses, is frequent during the immunosuppression that occurs with allo-HSCT. Viruses acquired from community, such as the respiratory and gastrointestinal viruses, are also important pathogens of post-transplant viral diseases. Currently, molecular diagnostic methods have replaced or supplemented traditional methods, such as viral culture and antigen detection, in diagnosis of viral infections. The utilization of polymerase chain reaction facilitates the early diagnosis. In view of lacking efficacious agents for treatment of viral diseases, prevention of viral infections is extremely valuable. Application of prophylactic strategies including preemptive therapy reduces viral infections and diseases. Adoptive cellular therapy for restoring virus-specific immunity is a promising method in the treatment of viral diseases.
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Affiliation(s)
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou Dadao North Street, 1838, Guangzhou China.
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18
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Abstract
A 65-year-old man presents with a rash of 2 days duration over the right forehead with vesicles and pustules, a few lesions on the right side and tip of the nose, and slight blurring in the right eye. The rash was preceded by tingling in the area and is now associated with aching pain. How should this patient be evaluated and treated?
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Affiliation(s)
- Jeffrey I Cohen
- Medical Virology Section, Laboratory of Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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19
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Abstract
Among the human herpes viruses, three are neurotropic and capable of producing severe neurological abnormalities: herpes simplex virus type 1 and 2 (HSV-1 and HSV-2) and varicella-zoster virus (VZV). Both the acute, primary infection and the reactivation from the site of latent infection, the dorsal sensory ganglia, are associated with severe human morbidity and mortality. The peripheral nervous system is one of the major loci affected by these viruses. The present review details the virology and molecular biology underlying the human infection. This is followed by detailed description of the symtomatology, clinical presentation, diagnosis, course, therapy, and prognosis of disorders of the peripheral nervous system caused by these viruses.
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Affiliation(s)
- Israel Steiner
- Department of Neurology, Rabin Medical Center, Beilinson Campus, Petach Tikva, Israel.
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20
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Abstract
Brivudin is an oral antiviral agent used to treat herpes zoster infections. Common side effects of brivudin include nausea and headache. This report describes delirium in a patient who used brivudin for herpes zoster treatment, which consequently remitted after drug cessation on the fourth day of medication use. To our knowledge, no such side effect has been reported to date. However, it is important that clinicians who prescribe brivudin are aware that treatment cessation is likely to result in total clinical recovery.
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Affiliation(s)
- Ibak Gonen
- Department of Infectious Diseases, School of Medicine, University of Duzce, Duzce, Turkey.
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21
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McDonald EM, de Kock J, SF Ram F. Antivirals for management of herpes zoster including ophthalmicus: a systematic review of high-quality randomized controlled trials. Antivir Ther 2011; 17:255-64. [DOI: 10.3851/imp2011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2011] [Indexed: 10/14/2022]
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22
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Wittek M, Doerr HW, Allwinn R. Varizellen und Herpes zoster. ACTA ACUST UNITED AC 2010; 105:399-403. [DOI: 10.1007/s00063-010-1071-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Accepted: 02/24/2010] [Indexed: 11/30/2022]
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Abstract
BACKGROUND A 66-year-old woman with metastatic mammary carcinoma, who was being treated with capecitabine, contracted a herpes zoster infection that was treated with the antiviral drug brivudin. A drug-drug interaction between brivudin and capecitabine caused medullar aplasia, serious toxic effects to the intestinal mucous membrane, hand-foot syndrome, onycholysis and dental pigmentation. INVESTIGATIONS Physical examination, blood analysis, blood cultures, chest X-ray, bone marrow aspiration and biopsy. DIAGNOSIS Serious adverse event secondary to inhibition of dihydropyrimidine dehydrogenase by a drug-drug interaction between capecitabine and brivudin. MANAGEMENT Intravenous hydration, imipenem, red blood cell and platelet transfusions, filgrastim, omeprazole, care of the mouth and feet, topical anesthetics, systemic analgesics and parenteral nutrition.
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25
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Características de los fármacos antivíricos frente a virus del grupo herpes actualización 2009. Enferm Infecc Microbiol Clin 2010; 28:199.e1-199.e33. [DOI: 10.1016/j.eimc.2009.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 11/23/2009] [Accepted: 11/24/2009] [Indexed: 11/20/2022]
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26
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De Clercq E. Highlights in the Discovery of Antiviral Drugs: A Personal Retrospective. J Med Chem 2009; 53:1438-50. [PMID: 19860424 DOI: 10.1021/jm900932g] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Erik De Clercq
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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27
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Mustafa MB, Arduino PG, Porter SR. Varicella zoster virus: review of its management. J Oral Pathol Med 2009; 38:673-88. [DOI: 10.1111/j.1600-0714.2009.00802.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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28
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Partridge DG, McKendrick MW. The treatment of varicella-zoster virus infection and its complications. Expert Opin Pharmacother 2009; 10:797-812. [DOI: 10.1517/14656560902808502] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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De Clercq E. The discovery of antiviral agents: Ten different compounds, ten different stories. Med Res Rev 2008; 28:929-53. [DOI: 10.1002/med.20128] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Therapie des Herpes zoster. Internist (Berl) 2008; 49:887-90. [DOI: 10.1007/s00108-008-2174-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Siakallis G, Spandidos DA, Sourvinos G. Herpesviridae and novel inhibitors. Antivir Ther 2008; 14:1051-64. [DOI: 10.3851/imp1467] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Steiner I, Kennedy PGE, Pachner AR. The neurotropic herpes viruses: herpes simplex and varicella-zoster. Lancet Neurol 2007; 6:1015-28. [PMID: 17945155 DOI: 10.1016/s1474-4422(07)70267-3] [Citation(s) in RCA: 325] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herpes simplex viruses types 1 and 2 (HSV1 and HSV2) and varicella-zoster virus (VZV) establish latent infection in dorsal root ganglia for the entire life of the host. From this reservoir they can reactivate to cause human morbidity and mortality. Although the viruses vary in the clinical disorders they cause and in their molecular structure, they share several features that affect the course of infection of the human nervous system. HSV1 is the causative agent of encephalitis, corneal blindness, and several disorders of the peripheral nervous system; HSV2 is responsible for meningoencephalitis in neonates and meningitis in adults. Reactivation of VZV, the pathogen of varicella (chickenpox), is associated with herpes zoster (shingles) and central nervous system complications such as myelitis and focal vasculopathies. We review the biological, medical, and neurological aspects of acute, latent, and reactivated infections with the neurotropic herpes viruses.
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Affiliation(s)
- Israel Steiner
- Neurological Sciences Unit, Hadassah University Hospital, Mount Scopus, Jerusalem, Israel.
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33
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Affiliation(s)
- David W Wareham
- Centre for Infectious Disease, Institute of Cell and Molecular Science, Barts and the London, Queen Mary's School of Medicine and Dentistry.
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34
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Dworkin RH. Inadequate evidence for a revised definition of postherpetic neuralgia (PHN). Pain 2007; 128:189-90; author reply 190-2. [PMID: 17240068 DOI: 10.1016/j.pain.2006.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Accepted: 12/04/2006] [Indexed: 10/23/2022]
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35
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Dworkin RH, Johnson RW, Breuer J, Gnann JW, Levin MJ, Backonja M, Betts RF, Gershon AA, Haanpaa ML, McKendrick MW, Nurmikko TJ, Oaklander AL, Oxman MN, Pavan-Langston D, Petersen KL, Rowbotham MC, Schmader KE, Stacey BR, Tyring SK, van Wijck AJM, Wallace MS, Wassilew SW, Whitley RJ. Recommendations for the management of herpes zoster. Clin Infect Dis 2007; 44 Suppl 1:S1-26. [PMID: 17143845 DOI: 10.1086/510206] [Citation(s) in RCA: 446] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The objective of this article is to provide evidence-based recommendations for the management of patients with herpes zoster (HZ) that take into account clinical efficacy, adverse effects, impact on quality of life, and costs of treatment. Systematic literature reviews, published randomized clinical trials, existing guidelines, and the authors' clinical and research experience relevant to the management of patients with HZ were reviewed at a consensus meeting. The results of controlled trials and the clinical experience of the authors support the use of acyclovir, brivudin (where available), famciclovir, and valacyclovir as first-line antiviral therapy for the treatment of patients with HZ. Specific recommendations for the use of these medications are provided. In addition, suggestions are made for treatments that, when used in combination with antiviral therapy, may further reduce pain and other complications of HZ.
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Affiliation(s)
- Robert H Dworkin
- Department of Anesthesiology, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14642, USA.
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36
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37
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Abraham S, Jones A, Toutous-Trellu L, Kerl-Bullani K, Chavaz P, Saurat JH, Piguet V. Linear Darier disease with herpes zoster superinfection treated successfully by brivudine. Br J Dermatol 2006; 154:365-7. [PMID: 16433812 DOI: 10.1111/j.1365-2133.2005.06936.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the case of a human immunodeficiency virus-positive patient presenting linear Darier disease with varicella-zoster virus superinfection following the lines of Blaschko. The lesions healed after treatment with brivudine.
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Affiliation(s)
- S Abraham
- Department of Dermatology and Venereology, University Hospital Geneva, 24 rue Micheli-du-Crest, CH-1211 Geneva 14, Switzerland
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38
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Abstract
During the last three decades, a better understanding of viral replication and disease states caused by viral infections have led to the development of newer antiviral agents with enhanced activity and better tolerability. This review focuses on newer systemic and topical antiviral agents that are used in treatment of herpes viruses including herpes simplex type-1 (HSV-1) and type-2 (HSV-2), varicella-zoster virus (VZV) and cytomegalovirus CMV) as well as the human papilloma virus (HPV). Included in this article are the agents famciclovir, penciclovir, valganciclovir, imiquimod, docosanole and brivudin.
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Affiliation(s)
- Nahed Abdel-Haq
- Division of Infectious Diseases, Children's Hospital of Michigan, Carman and Ann Adams, Department of Pediatrics, Wayne State University, School of Medicine, Detroit 48201, USA.
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39
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Abstract
The systemic treatment of herpes zoster shortens the healing process, and prevents or alleviates pain and other acute or chronic complications, especially when it is administered in the first 72 hours after symptoms appear. This treatment is especially indicated in patients over the age of 50 and in those who, regardless of age, have head and neck involvement, especially in herpes zoster ophthalmicus. The drugs approved in Europe for the systemic treatment of herpes zoster are aciclovir, valaciclovir, famciclovir and brivudine. Brivudine shows greater effectiveness against the varicella-zoster virus than aciclovir and its derivatives, and can be given just once a day for seven days, compared to multiple doses of the latter. As opposed to the others, brivudine is a non-nephrotoxic drug that should not be administered to immunodepressed patients or to those being treated with 5-fluorouracil. The treatment of herpes zoster to reduce pain should be combined with analgesics and neuroactive agents (amitriptyline, gabapentin, etc). While corticosteroids are of dubious efficacy in the treatment of post-herpes neuralgia, the intensity and duration of the pain can be reduced with some topical treatments (capsaicin, lidocaine patches, etc). Finally, this review discusses treatment guidelines for special locations (cranial nerves) and different subpopulations (children, pregnant women, immunodepressed patients, etc).
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Affiliation(s)
- Agustín España
- Departamento de Dermatología, Clínica Universitaria de Navarra, Facultad de Medicina, Spain
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40
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Abstract
The overall incidence of herpes zoster in Europe is approximately 3 per 1000 people per year and more than 10 per 1000 people per year in those aged >80 years. Post herpetic neuralgia (PHN) is a common debilitating complication of herpes zoster, particularly in patients aged >50 years, in persons with severe pain or rash at presentation, and in those with significant prodromal symptoms. Antiviral drugs can effectively control acute symptoms and, if used early enough in the course of the illness, can help prevent the development of PHN and other complications. However, despite this, many patients do not receive such treatment. The economic impact of zoster and PHN is largely underestimated in Europe. Furthermore, there is considerable variation throughout Europe in the management of herpes zoster. Use of antiviral therapy including the newer potent antiviral agents such as brivudin, which requires less frequent administration than acyclovir, is improving patient outcomes in some European countries. However, in many countries, patient awareness of herpes zoster and, as a result, overall antiviral use is low. Guidelines recommending the use of antiviral agents, particularly in patients at risk of developing PHN, are available but are not widely used. More needs to be done to educate the general public and increase awareness among primary healthcare providers of the benefits of timely and appropriate pharmacological therapy in patients with herpes zoster.
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Affiliation(s)
- Antonio Volpi
- Department of Public Health, University of Rome, Rome, Italy.
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41
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Hackanson B, Zeiser R, Bley TA, Pantazis G, Huzly D, Bertz H, Finke J. Fatal varicella zoster virus encephalitis in two patients following allogeneic hematopoietic stem cell transplantation. Clin Transplant 2005; 19:566-70. [PMID: 16008607 DOI: 10.1111/j.1399-0012.2005.00382.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Reduced cellular immunocompetence following allogeneic hematopoietic stem cell transplantation (aHSCT) increases susceptibility to viral infections. Varicella zoster virus (VZV) reactivation in this setting most commonly manifests as dermatomal herpes zoster but in some cases life-threatening VZV encephalitis occurs. STUDY DESIGN/RESULTS We describe the cases of two patients who presented with shingles 3 and 18 months, respectively, after HLA-matched peripheral blood stem cell transplantation (PBSCT). Unfortunately, in the further clinical course both patients developed fatal VZV encephalitis, despite initial high-dose intravenous therapy with acyclovir and in one case with additional VZV-immunoglobulin. CONCLUSION These two cases suggest that rapid intervention with systemic treatment is warranted and raise the question whether initial combination therapy with intravenous acyclovir and foscarnet, VZV vaccination or long-term low-dose acyclovir are needed to improve treatment and clinical outcome in immunocompromised patients, having undergone allogeneic HSCT.
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Affiliation(s)
- Björn Hackanson
- Department of Hematology/Oncology, Freiburg University Medical Center, Freiburg, Germany.
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42
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De Clercq E. Antiviral drug discovery and development: Where chemistry meets with biomedicine. Antiviral Res 2005; 67:56-75. [PMID: 16046240 DOI: 10.1016/j.antiviral.2005.05.001] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2005] [Accepted: 05/19/2005] [Indexed: 11/22/2022]
Abstract
The successful development of antiviral drugs is highly dependent on a close interaction and collaboration between the chemist and the biologist (biomedic). This is illustrated by a number of representative examples: S-adenosylhomocysteine (SAH) hydrolase inhibitors which display broad-spectrum antiviral activity, bromovinyldeoxyuridine (BVDU) and derivatives thereof, that are highly selective inhibitors of varicella-zoster virus (VZV), (dideoxy)nucleoside reverse transcriptase inhibitors (NRTIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs) which are now widely used in the treatment of HIV infections (AIDS), the bicyclams (i.e. AMD3100) which were originally discovered as anti-HIV agents, then found to be potent CXCR4 antagonists and now being pursued for a number of indications such as stem cell mobilization, and the acyclic nucleoside phosphonates which have heralded a new strategy for the treatment of various DNA virus (herpes-, adeno-, pox-, papillomavirus) infections (cidofovir), hepatitis B (adefovir) and AIDS (tenofovir).
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Affiliation(s)
- Erik De Clercq
- Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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43
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García A, Guerra-Tapia A, Torregrosa JV. Tratamiento y prevención del herpes zoster. Med Clin (Barc) 2005; 125:215-20. [PMID: 16022835 DOI: 10.1157/13077377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Amaro García
- Hospital Universitario La Princesa, Madrid, Spain
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44
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Andrei G, Sienaert R, McGuigan C, De Clercq E, Balzarini J, Snoeck R. Susceptibilities of several clinical varicella-zoster virus (VZV) isolates and drug-resistant VZV strains to bicyclic furano pyrimidine nucleosides. Antimicrob Agents Chemother 2005; 49:1081-6. [PMID: 15728906 PMCID: PMC549231 DOI: 10.1128/aac.49.3.1081-1086.2005] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Varicella-zoster virus (VZV) is responsible for primary infections as well as reactivations after latency in the dorsal root ganglia. The treatment of such infections is mandatory for immunocompromised patients and highly recommended for elderly patients with herpes zoster infections (also called zona or shingles). The treatment of choice is presently based on four molecules, acyclovir (ACV), valaciclovir, famciclovir, and (in Europe) brivudine (BVDU). We present here our data on the antiviral activity of a new class of potent and selective anti-VZV compounds, bicylic pyrimidine nucleoside analogues (BCNAs), against a broad variety of clinical isolates and different drug-resistant virus strains. The results show that the BCNAs are far more potent inhibitors than ACV and BVDU against clinical VZV isolates as well as the VZV reference strains Oka and YS. The BCNAs were not active against ACV- and BVDU-resistant VZV strains bearing mutations in the viral thymidine kinase gene but kept their inhibitory potential against virus strains with mutations in the VZV DNA polymerase gene. Mutant virus strains selected in the presence of the BCNAs were solely cross-resistant to drugs, such as ACV and BVDU, that depend for their antiviral action on metabolic activation by the viral thymidine kinase.
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Affiliation(s)
- Graciela Andrei
- Rega Institute for Medical Research, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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45
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Abstract
(E)-5-(2-bromovinyl)-2'-deoxyuridine (BVDU, Brivudin, Zostex, Zerpex, Zonavir), now more than 20 years after its discovery, still stands out as a highly potent and selective inhibitor of herpes simplex virus type 1 (HSV-1) and varicella-zoster virus (VZV) infections. It has been used in the topical treatment of herpetic keratitis and recurrent herpes labialis and the systemic (oral) treatment of herpes zoster (zona, shingles). The high selectivity of BVDU towards HSV-1 and VZV depends primarily on a specific phosphorylation of BVDU to its 5'-diphosphate (DP) by the virus-encoded thymidine kinase (TK). After further phosphorylation (by cellular enzymes), to the 5'-triphosphate (TP), the compound interferes as a competitive inhibitor/alternate substrate with the viral DNA polymerase. The specific phosphorylation by the HSV- and VZV-induced TK also explains the marked cytostatic activity of BVDU against tumor cells that have been transduced by the viral TK genes. This finding offers considerable potential in a combined gene therapy/chemotherapy approach for cancer. To the extent that BVDU or its analogues (i.e., BVaraU) are degraded (by thymidine phosphorylase) to (E)-5-(2-bromovinyl)uracil (BVU), they may potentiate the anticancer potency, as well as toxicity, of 5-fluorouracil. This ensues from the direct inactivating effect of BVU on dihydropyrimidine dehydrogenase, the enzyme that initiates the degradative pathway of 5-fluorouracil. The prime determinant in the unique behavior of BVDU is its (E)-5-(2-bromovinyl) substituent. Numerous BVDU analogues have been described that, when equipped with this particular pharmacophore, demonstrate an activity spectrum characteristic of BVDU, including selective anti-VZV activity.
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Affiliation(s)
- Erik De Clercq
- Department of Microbiology and Immunology, Division of Virology and Chemotherapy, Rega Institute for Medical Research, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium.
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46
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Wassilew S. Brivudin compared with famciclovir in the treatment of herpes zoster: effects in acute disease and chronic pain in immunocompetent patients. A randomized, double-blind, multinational study. J Eur Acad Dermatol Venereol 2005; 19:47-55. [PMID: 15649191 DOI: 10.1111/j.1468-3083.2004.01119.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This was a double-blind, randomized multicentre trial comparing efficacy and safety of brivudin (125 mg, once a day) and famciclovir (250 mg, three times a day), both given orally for 7 days, in the treatment of herpes zoster. METHODS A total of 2027 immunocompetent zoster patients>or=50 years with zoster-related pain at presentation were included. Outcome measures embraced prevalence of postherpetic neuralgia (PHN), defined as at least moderate pain 3 months after treatment initiation, duration of PHN, prevalence and duration of zoster-associated pain (ZAP), duration of vesicle formation and rash healing. RESULTS The prevalence of PHN at month 3 was 11.3% with brivudin and 9.6% with famciclovir [per-protocol (PP) population]. Equivalence of the two drugs could be demonstrated (P=0.01, PP and intention-to-treat analysis). The median duration of PHN was 46.5 days with brivudin and 58 days with famciclovir (P=0.54, PP analysis). Prevalence and duration of ZAP did not differ significantly between treatment groups. The prevalence of PHN was higher in patients>or=65 years (brivudin: 16.4%, famciclovir: 16.4%), and in patients with severe rash (brivudin: 13.4%, famciclovir: 15.7%), without significant differences between treatment groups. In patients>or=65 years, median duration of PHN was shorter with brivudin than with famciclovir (39.5 vs. 57.5 days), although the difference was not statistically significant. The two drugs had equivalent efficacy in being able to accelerate the stop of vesicle formation, and lesion healing. Adverse events were similar in nature and prevalence among groups. CONCLUSIONS The study demonstrated equivalent efficacy of brivudin and famciclovir in the treatment of herpes zoster regarding the prevention of chronic pain and the resolution of signs and symptoms of acute herpes zoster. Compared with famciclovir, brivudin provides equivalent efficacy and safety at a more convenient once-daily dose schedule.
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Affiliation(s)
- Sw Wassilew
- Dermatological Department, Klinikum Krefeld, Krefeld, Germany.
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Antiviral drugs. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0378-6080(05)80451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Abstract
The primary infection with varicella-zoster virus (VZV) is manifest clinically as varicella. It is a common very contagious disease, normally appearing in childhood. VZV is a ubiquitous virus with a high prevalence. Clinically it is characterized by pleomorphic skin lesions. Normally antiviral therapy is necessary only in severe cases, in adults or in immunosuppressed patients. Herpes zoster, also caused by (VZV), is a neurodermal disease representing the endogenous relapse of the primary varicella infection. Herpes zoster is characterized by lesions concentrated in the innervation region of a cranial or spinal nerve. One of the most feared manifestations of herpes zoster is pain. Several antiviral drugs are approved and many studies have shown that antiviral therapy, started early in the course of disease, can significantly reduce risk and duration of postherpetic neuralgia in elderly patients. Therefore, antiviral therapy in combination with an adequate pain management should be given to all elderly patients as soon as herpes zoster is diagnosed.
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Affiliation(s)
- H M Lilie
- Dermatologische Klinik, Klinikum Krefeld, Lutherplatz 40, 47805 Krefeld, Germany.
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De Clercq E. Discovery and development of BVDU (brivudin) as a therapeutic for the treatment of herpes zoster. Biochem Pharmacol 2004; 68:2301-15. [PMID: 15548377 DOI: 10.1016/j.bcp.2004.07.039] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2004] [Accepted: 07/19/2004] [Indexed: 11/24/2022]
Abstract
This Commentary is dedicated to the memory of Dr. Jacques Gielen, the late Editor of Biochemical Pharmacology, whom I have known as both an author and reviewer for the Journal for about 25 years. This is, quite incidentally, about the time it took for bringing brivudin (BVDU) [(E)-5-(2-bromovinyl)-2'-deoxyuridine] from its original description as an antiviral agent to the market place (in a number of European countries, including Germany and Italy) for the treatment of herpes zoster in immunocompetent persons. BVDU is exquisitely active and selective against varicella-zoster virus (VZV) and herpes simplex virus type 1 (HSV-1). BVDU owes this high selectivity and activity profile to a specific phosphorylation by the virus-encoded thymidine kinase, followed by a potent interaction with the viral DNA polymerase. The (E)-5-(2-bromovinyl)-substituent can be considered as the hallmark for the activity of BVDU against VZV and HSV-1. Extensive clinical studies have indicated that BVDU as a single (oral) daily dose of 125 mg (for no more than 7 days) is effective in the treatment of herpes zoster, as regards both short-term (suppression of new lesion formation) and long-term effects (prevention of post-herpetic neuralgia). In this sense, BVDU is as efficient and/or convenient, if not more so, than the other drugs (acyclovir, valaciclovir, famciclovir) that have been licensed for the treatment of herpes zoster. There is one caveat; however, BVDU should not be given to patients under 5-fluorouracil therapy, as the degradation product of BVDU, namely (E)-5-(2-bromovinyl)uracil (BVU), may potentiate the toxicity of 5-fluorouracil, due to inhibition of dihydropyrimidine dehydrogenase, the enzyme involved in the catabolism of 5-fluorouracil.
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Affiliation(s)
- E De Clercq
- Department of Microbiology and Immunology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat B-3000 Leuven, Belgium.
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Visalli RJ. Novel compounds for the treatment of varicella–zoster virus infections. Expert Opin Ther Pat 2004. [DOI: 10.1517/13543776.14.3.355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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