1
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Royston L, Papanicolaou GA, Neofytos D. Refractory/Resistant Cytomegalovirus Infection in Transplant Recipients: An Update. Viruses 2024; 16:1085. [PMID: 39066247 PMCID: PMC11281367 DOI: 10.3390/v16071085] [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: 05/06/2024] [Revised: 06/26/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Despite the significant progress made, CMV infection is one of the most frequent infectious complications in transplant recipients. CMV infections that become refractory or resistant (R/R) to the available antiviral drugs constitute a clinical challenge and are associated with increased morbidity and mortality. Novel anti-CMV therapies have been recently developed and introduced in clinical practice, which may improve the treatment of these infections. In this review, we summarize the treatment options for R/R CMV infections in adult hematopoietic cell transplant and solid organ transplant recipients, with a special focus on newly available antiviral agents with anti-CMV activity, including maribavir and letermovir.
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Affiliation(s)
- Léna Royston
- Division of Infectious Diseases, University Hospital of Geneva, 1211 Geneva, Switzerland
| | - Genovefa A. Papanicolaou
- Infectious Disease Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Dionysios Neofytos
- Division of Infectious Diseases, University Hospital of Geneva, 1211 Geneva, Switzerland
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2
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Bharti R, Calabrese DR. Innate and adaptive effector immune drivers of cytomegalovirus disease in lung transplantation: a double-edged sword. FRONTIERS IN TRANSPLANTATION 2024; 3:1388393. [PMID: 38993763 PMCID: PMC11235306 DOI: 10.3389/frtra.2024.1388393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/24/2024] [Indexed: 07/13/2024]
Abstract
Up to 90% of the global population has been infected with cytomegalovirus (CMV), a herpesvirus that remains latent for the lifetime of the host and drives immune dysregulation. CMV is a critical risk factor for poor outcomes after solid organ transplant, though lung transplant recipients (LTR) carry the highest risk of CMV infection, and CMV-associated comorbidities compared to recipients of other solid organ transplants. Despite potent antivirals, CMV remains a significant driver of chronic lung allograft dysfunction (CLAD), re-transplantation, and death. Moreover, the extended utilization of CMV antiviral prophylaxis is not without adverse effects, often necessitating treatment discontinuation. Thus, there is a critical need to understand the immune response to CMV after lung transplantation. This review identifies key elements of each arm of the CMV immune response and highlights implications for lung allograft tolerance and injury. Specific attention is paid to cellular subsets of adaptive and innate immune cells that are important in the lung during CMV infection and reactivation. The concept of heterologous immune responses is reviewed in depth, including how they form and how they may drive tissue- and allograft-specific immunity. Other important objectives of this review are to detail the emerging role of NK cells in CMV-related outcomes, in addition to discussing perturbations in CMV immune function stemming from pre-existing lung disease. Finally, this review identifies potential mechanisms whereby CMV-directed treatments may alter the cellular immune response within the allograft.
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Affiliation(s)
- Reena Bharti
- Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Daniel R. Calabrese
- Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
- Department of Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, CA, United States
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3
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Luque-Paz D, Lalanne S, Besombes J, Dorel M, Maamar A, Revest M. Absence of maribavir penetration into the central nervous system: confirmation by multiple cerebrospinal fluid dosages in a solid organ transplant recipient. J Antimicrob Chemother 2024; 79:1462-1463. [PMID: 38557693 DOI: 10.1093/jac/dkae094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Affiliation(s)
- David Luque-Paz
- Infectious Diseases and Intensive Care Unit, Pontchaillou Hospital, University Hospital of Rennes, Rennes, France
| | - Sébastien Lalanne
- Department of Pharmacology, Univ Rennes, CHU Rennes, Inserm, EHESP, IRSET (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, F-35000 Rennes, France
| | - Juliette Besombes
- Department of Virology, INSERM, EHESP, IRSET-UMR_S 1085, Pontchaillou University Hospital, Univ Rennes, Rennes, France
| | - Marie Dorel
- Infectious Diseases and Intensive Care Unit, Pontchaillou Hospital, University Hospital of Rennes, Rennes, France
| | - Adel Maamar
- Infectious Diseases and Intensive Care Unit, Pontchaillou Hospital, University Hospital of Rennes, Rennes, France
| | - Matthieu Revest
- Infectious Diseases and Intensive Care Unit, Pontchaillou Hospital, University Hospital of Rennes, Rennes, France
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4
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Chen G, Sun K, Michon I, Barter Z, Neuhoff S, Ghosh L, Ilic K, Song IH. Physiologically Based Pharmacokinetic Modeling for Maribavir to Inform Dosing in Drug-Drug Interaction Scenarios with CYP3A4 Inducers and Inhibitors. J Clin Pharmacol 2024; 64:590-600. [PMID: 38009271 DOI: 10.1002/jcph.2385] [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: 09/27/2023] [Accepted: 11/14/2023] [Indexed: 11/28/2023]
Abstract
Maribavir, an orally available antiviral agent, has been approved in multiple countries for the treatment of patients with refractory post-transplant cytomegalovirus (CMV) infection and/or disease. Maribavir is primarily metabolized by CYP3A4; coadministration with CYP3A4 inducers and inhibitors may significantly alter maribavir exposure, thereby affecting its efficacy and safety. The effect of CYP3A4 inducers and inhibitors on maribavir exposure was evaluated based on a drug-drug interaction (DDI) study and physiologically-based pharmacokinetic (PBPK) modeling. The effect of rifampin (a strong inducer of CYP3A4 and moderate inducer of CYP1A2), administered at a 600 mg dose once daily, on maribavir pharmacokinetics was assessed in a clinical phase 1 DDI study in healthy participants. A full PBPK model for maribavir was developed and verified using in vitro and clinical pharmacokinetic data from phase 1 studies. The verified PBPK model was then used to simulate maribavir DDI interactions with various CYP3A4 inducers and inhibitors. The DDI study results showed that coadministration with rifampin decreased the maribavir maximum plasma concentration (Cmax), area under the plasma concentration-time curve (AUC), and trough concentration (Ctrough) by 39%, 60%, and 82%, respectively. Based on the results from the clinical DDI study, the coadministration of maribavir with rifampin is not recommended. The PBPK model did not predict a clinically significant effect of CYP3A4 inhibitors on maribavir exposure; however, it predicted that strong or moderate CYP3A4 inducers, including carbamazepine, efavirenz, phenobarbital, and phenytoin, may reduce maribavir exposure to a clinically significant extent, and may prompt the consideration of a maribavir dosing increase, in accordance with local approved labels and/or regulations.
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Affiliation(s)
- Grace Chen
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
| | - Kefeng Sun
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
| | | | - Zoe Barter
- Certara UK Ltd., Simcyp Division, Sheffield, UK
| | | | - Lipika Ghosh
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
| | - Katarina Ilic
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
| | - Ivy H Song
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
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5
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Cochran WV, Dioverti MV, Langlee J, Barker LN, Shedeck A, Toman LP, Avery RK. Approaches and Challenges in the Current Management of Cytomegalovirus in Transplant Recipients: Highlighting the Role of Advanced Practice Providers (Nurse Practitioners and Physician Assistants). Ann Transplant 2024; 29:e941185. [PMID: 38650316 PMCID: PMC11055468 DOI: 10.12659/aot.941185] [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: 05/22/2023] [Accepted: 01/22/2024] [Indexed: 04/25/2024] Open
Abstract
Cytomegalovirus (CMV) infection is associated with increased morbidity and mortality in hematopoietic cell transplant (HCT) and solid organ transplant (SOT) recipients, with traditional anti-CMV therapies limited by their associated toxicities and the development of resistance. Clinical providers are often faced with challenging and complicated CMV infections that require multiple courses of antiviral therapies. Increasingly, advanced practice providers (APPs) are playing an important role in the day-to-day management of transplant recipients with CMV infection, including resistant/refractory CMV and other complex CMV syndromes. Here, we provide an overview of current preventative and treatment strategies for CMV infection in HCT and SOT recipients, highlighting the challenging aspects of current management and the potential utility of newer antiviral agents. This article also focuses on how a multidisciplinary team, orchestrated by APPs, can improve CMV-associated patient outcomes. Protocols using antiviral agents for the prevention or treatment of CMV infections require carefully designed and meticulously implemented strategies to ensure the best clinical outcomes for patients. APPs, who have increasingly become the frontline providers of outpatient care for transplant recipients, are ideally positioned to design and carry out these protocols.
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Affiliation(s)
- Willa V. Cochran
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA
| | | | - Julie Langlee
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | | | - Audra Shedeck
- Sidney Kimmel Cancer Center, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Lindsey P. Toman
- Department of Pharmacy, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Robin K. Avery
- Department of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA
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6
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Krueger MB, Bonifacius A, Dragon AC, Santamorena MM, Nashan B, Taubert R, Kalinke U, Maecker-Kolhoff B, Blasczyk R, Eiz-Vesper B. In Vitro Profiling of Commonly Used Post-transplant Immunosuppressants Reveals Distinct Impact on Antiviral T-cell Immunity Towards CMV. Transpl Int 2024; 37:12720. [PMID: 38655204 PMCID: PMC11035762 DOI: 10.3389/ti.2024.12720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024]
Abstract
Infectious complications, including widespread human cytomegalovirus (CMV) disease, frequently occur after hematopoietic stem cell and solid organ transplantation due to immunosuppressive treatment causing impairment of T-cell immunity. Therefore, in-depth analysis of the impact of immunosuppressants on antiviral T cells is needed. We analyzed the impact of mTOR inhibitors sirolimus (SIR/S) and everolimus (EVR/E), calcineurin inhibitor tacrolimus (TAC/T), purine synthesis inhibitor mycophenolic acid (MPA/M), glucocorticoid prednisolone (PRE/P) and common double (T+S/E/M/P) and triple (T+S/E/M+P) combinations on antiviral T-cell functionality. T-cell activation and effector molecule production upon antigenic stimulation was impaired in presence of T+P and triple combinations. SIR, EVR and MPA exclusively inhibited T-cell proliferation, TAC inhibited activation and cytokine production and PRE inhibited various aspects of T-cell functionality including cytotoxicity. This was reflected in an in vitro infection model, where elimination of CMV-infected human fibroblasts by CMV-specific T cells was reduced in presence of PRE and all triple combinations. CMV-specific memory T cells were inhibited by TAC and PRE, which was also reflected with double (T+P) and triple combinations. EBV- and SARS-CoV-2-specific T cells were similarly affected. These results highlight the need to optimize immune monitoring to identify patients who may benefit from individually tailored immunosuppression.
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Affiliation(s)
- Markus Benedikt Krueger
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Agnes Bonifacius
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
| | - Anna Christina Dragon
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Maria Michela Santamorena
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Björn Nashan
- Clinic for Hepatopancreaticobiliary Surgery and Transplantation, First Affiliated Hospital, University of Science and Technology of China, Hefei, China
| | - Richard Taubert
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Ulrich Kalinke
- TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz Centre for Infection Research and the Hannover Medical School, Hannover, Germany
| | - Britta Maecker-Kolhoff
- German Center for Infection Research (DZIF), Braunschweig, Germany
- Department of Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Rainer Blasczyk
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Britta Eiz-Vesper
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
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7
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Stewart AG, Kotton CN. What's New: Updates on Cytomegalovirus in Solid Organ Transplantation. Transplantation 2024; 108:884-897. [PMID: 37899366 DOI: 10.1097/tp.0000000000004855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Cytomegalovirus (CMV) is one of the most common infections occurring after solid organ transplantation. This high burden of disease, which incurs sizeable morbidity, may be worsening with the proportion of high-risk D+/R- solid organ transplantation recipients increasing in some regions globally. Cohort studies continue to support either universal prophylaxis or preemptive therapy as effective prevention strategies. Letermovir prophylaxis was noninferior to valganciclovir in adult high-risk D+/R- kidney transplant recipients with fewer drug-related adverse events in a recent clinical trial and has now been approved for such use in some regions. Maribavir preemptive therapy failed to demonstrate noninferiority when compared with valganciclovir in hematopoietic stem cell transplant recipients but looked promising for safety. Donor matching could be useful in prevention CMV disease with a survival advantage demonstrated in seronegative recipients waiting up to 30 mo for a seronegative kidney. Immune-guided prophylaxis resulted in fewer CMV infection episodes in lung transplant recipients when compared with fixed-duration prophylaxis in a recent clinical trial. For treatment of refractory or resistant CMV infection, maribavir was more efficacious and better tolerated when compared with investigator-initiated therapy in its registration trial for this condition. Further research regarding best treatment and prophylaxis of resistant or refractory CMV infection is needed to reflect best clinical practice choices. Optimal use of immune globulin or CMV-specific T cells for prevention or treatment of CMV disease remains undefined. Standardized definitions for the design of CMV clinical trials have been developed. In this review, we highlight recent updates in the field from data published since 2018.
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Affiliation(s)
- Adam G Stewart
- Centre for Clinical Research, Faculty of Medicine, University of Queensland, Royal Brisbane and Women's Hospital Campus, Brisbane, QLD, Australia
| | - Camille N Kotton
- Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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8
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Galaverna F, Baccelli F, Zama D, Tridello G, Masetti R, Soncini E, Mura R, Barzaghi F, Colombini A, Prunotto G, D'Amico MR, Calore E, Biffi A, Perruccio K, Gasperini P, Oltolini C, Quagliarella F, Giacomazzi A, Pagliara D, Locatelli F, Cesaro S. Letermovir for Cytomegalovirus infection in pediatric patients undergoing allogenic hematopoietic stem cell transplantation: a real-life study by the Infectious Diseases Working Group of Italian Association of Pediatric Hematology-Oncology (AIEOP). Bone Marrow Transplant 2024; 59:505-512. [PMID: 38272999 DOI: 10.1038/s41409-024-02209-2] [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: 09/29/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/27/2024]
Abstract
Letermovir prophylaxis revolutionized the approach to Cytomegalovirus infection in adult hematopoietic stem cell transplant (HCT), while data in pediatric setting are still lacking. We retrospectively analyzed 87 HCT children transplanted in 11 AIEOP centers receiving letermovir as off-label indication between January 2020 and November 2022. Letermovir was used as primary, secondary prophylaxis or CMV treatment in 39, 26 and 22 cases, respectively; no discontinuation due to toxicity was reported. Median duration was 100 days (14-256) for primary and 96 days (8-271) for secondary prophylaxis, respectively. None of the patients experienced CMV-clinically significant reactivation during Letermovir primary prophylaxis; one patient developed breakthrough infection during secondary prophylaxis, and 10 and 1 patient experienced asymptomatic CMV-reactivation and CMV-primary infection after drug discontinuation, respectively. Median duration of letermovir in CMV treatment was 40 days (7-134), with 4/22 patients suffering CMV-pneumonia, with an overall response rate of 86.4%. With a median follow-up of 10.7 months (8.2-11.8), estimated 1-year overall survival was 86%; no CMV-related deaths were reported in prophylaxis groups. This is the largest report on Letermovir use in pediatric HCT; real-life data confirm an excellent toxicity profile, with high efficacy as CMV prophylaxis; results in CMV-infection treatment should be investigated in larger, prospective trials.
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Affiliation(s)
- Federica Galaverna
- Department of Pediatric Oncology, Hematology, Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy.
| | - Francesco Baccelli
- Department of Medical and surgical sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Daniele Zama
- Department of Medical and surgical sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Gloria Tridello
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Riccardo Masetti
- Department of Medical and surgical sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
- Pediatric Hematology and Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Elena Soncini
- Pediatric Oncohematology and Bone marrow transplant Unit, ASST Spedali Civili, Brescia, Italy
| | - Rossella Mura
- Pediatric Hematology Oncology, Azienda Ospedaliera Brotzu, Cagliari, Italy
| | - Federica Barzaghi
- Pediatric Immunohematology Unit and bone marrow transplant Unit, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Antonella Colombini
- Department of Pediatrics, Fondazione MBBM - Ospedale San Gerardo, Monza, Italy
| | - Giulia Prunotto
- Department of Pediatrics, Fondazione MBBM - Ospedale San Gerardo, Monza, Italy
| | - Maria Rosaria D'Amico
- Unità Operativa di Trapianto di Cellule Staminali Ematopoietiche e Terapie Cellulari, AORN Santobono-Pausilipon, Napoli, Italy
| | - Elisabetta Calore
- Pediatric Hematology, Oncology and Stem Cell Transplant Division, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Alessandra Biffi
- Pediatric Hematology, Oncology and Stem Cell Transplant Division, Department of Women's and Children's Health, University Hospital of Padova, Padova, Italy
| | - Katia Perruccio
- Pediatric Oncology Hematology, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - Pietro Gasperini
- Department of Pediatrics, Azienda Unità Sanitaria Locale di Rimini, Rimini, Italy
| | - Chiara Oltolini
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Francesco Quagliarella
- Department of Pediatric Oncology, Hematology, Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Alice Giacomazzi
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Daria Pagliara
- Department of Pediatric Oncology, Hematology, Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Franco Locatelli
- Department of Pediatric Oncology, Hematology, Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
- Catholic University of the Sacred Heart, Roma, Italy
| | - Simone Cesaro
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
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Jiang Z, Fan Z, Zhang T, Lin R, Xu H, Xu N, Huang F, Chi P, Ou X, Wang Z, Liu H, Zhao K, Jiang L, Yu S, Sun J, Liu Q, Xuan L. Adoptive therapy with cytomegalovirus-specific cytotoxic T lymphocytes for refractory cytomegalovirus DNAemia and disease after allogeneic haematopoietic stem cell transplantation. Br J Haematol 2024; 204:1393-1401. [PMID: 38168845 DOI: 10.1111/bjh.19282] [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: 09/27/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Cytomegalovirus (CMV) DNAemia and disease are common complications in patients undergoing allogeneic haematopoietic stem cell transplantation (allo-HSCT). Few studies have compared the efficacy and safety of the HSCT donor and third-party CMV-specific cytotoxic T lymphocytes (CMV-CTLs) in the treatment of CMV DNAemia and disease. In this study, we retrospectively compared the efficacy and safety of HSCT donor and third-party CMV-CTLs in patients with refractory CMV DNAemia or disease after allo-HSCT at our centre from January 2017 to September 2021. Fifty-three patients who received CMV-CTL therapy were enrolled, including 40 in the donor group and 13 in the third-party group, and they were adults aged 18 years or older. Within 6 weeks of treatment, 26 (65.0%) and 9 (69.2%) patients achieved complete response in the donor and third-party groups (p = 1.000). The 2-year overall survival was 59.6% (95% CI 46.1%-77.1%) and 53.8% (32.6%-89.1%) in the donor and third-party groups (p = 0.860). Four (10.0%) patients in the donor group and two (15.4%) patients in the third-party group developed acute graft-versus-host disease within 3 months after CMV-CTL infusions. In conclusion, our data suggest that donor and third-party CMV-CTLs have comparable efficacy and safety for refractory CMV DNAemia and disease.
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Affiliation(s)
- Zhonghui Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Zhiping Fan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Tian Zhang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Ren Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Hui Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Na Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Fen Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Peiru Chi
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Xueying Ou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Zhixiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Hui Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Ke Zhao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Ling Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Sijian Yu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Jing Sun
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Li Xuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
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10
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Monday LM, Keri V, Chandrasekar PH. Advances in pharmacotherapies for cytomegalovirus infection: what is the current state of play? Expert Opin Pharmacother 2024; 25:685-694. [PMID: 38717943 DOI: 10.1080/14656566.2024.2353627] [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: 01/18/2024] [Accepted: 05/07/2024] [Indexed: 06/12/2024]
Abstract
INTRODUCTION Cytomegalovirus (CMV) remains a serious opportunistic infection in hematopoietic cell transplant (HCT) and solid-organ transplant (SOT) recipients. Traditional anti-CMV drugs are limited by toxicities and the development of resistance. Letermovir and maribavir are newly approved antivirals for the prevention and treatment of CMV. AREAS COVERED Prior reviews have discussed use of letermovir for prevention of CMV after HCT and maribavir for resistant or refractory (R/R) CMV post HCT or SOT. Subsequent data have expanded their use including letermovir for primary CMV prophylaxis in high-risk renal transplant recipients and new recommendations for extending prophylaxis through day + 200 in certain HCT patients. Data on the use of maribavir for first asymptomatic CMV infection post-HCT has also been published. This review compares the pharmacology of anti-CMV agents and discusses the updated literature of these new drugs in the prevention and treatment of CMV. EXPERT OPINION Letermovir and maribavir are much needed tools that spare toxicities of ganciclovir, foscarnet, and cidofovir. High cost is a challenge preventing their integration into clinical practice in resource-limited countries. Transplant centers need to exercise restraint in overuse to avoid resistance, particularly in the setting of high viral loads.
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Affiliation(s)
- Lea M Monday
- Division of Infectious Diseases, Department of Medicine, Wayne State University, Detroit, MI, USA
| | - Vishakh Keri
- Division of Infectious Diseases, Department of Medicine, Wayne State University, Detroit, MI, USA
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11
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Hardinger KL, Brennan DC. Cytomegalovirus Treatment in Solid Organ Transplantation: An Update on Current Approaches. Ann Pharmacother 2024:10600280241237534. [PMID: 38501850 DOI: 10.1177/10600280241237534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVE The article reviews the safety and efficacy of treatments for cytomegalovirus (CMV) in solid organ transplantation. DATA SOURCES A literature review was conducted in PubMed, MEDLINE, and Clinicaltrials.gov from database inception through January 2024, using terms CMV, therapy, and solid organ transplantation. STUDY SELECTION AND DATA EXTRACTION Clinical trials, meta-analyses, cohort studies, case reports, and guidelines were included. Letters to the editor, reviews, and commentaries were excluded. DATA SYNTHESIS After abstract screening and full-text review of 728 citations for eligibility, 53 were included. Valganciclovir and intravenous ganciclovir are drugs of choice for CMV management and, until recently, the availability of alternative options has been restricted due to toxicity. For instance, foscarnet and cidofovir serve as second-line agents due to potential bone marrow and renal toxicity. In patients with refractory or resistant CMV, maribavir, a novel oral agent, has proven efficacy and a lower adverse effect profile. However, in refractory or resistant CMV, foscarnet and cidofovir are preferred in invasive disease (CMV gastritis, CMV retinitis, and CMV encephalitis), high viral loads, and inability to tolerate oral preparations. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE Consensus guidelines have not been revised since approval of novel antivirals in solid organ transplantation. Valganciclovir and ganciclovir remain drugs of choice for initial CMV therapy. Foscarnet, cidofovir, and maribavir are treatments for refractory or resistant-CMV. CONCLUSIONS Selection of CMV antiviral treatment should be determined by patient-specific factors, including severity of illness, resistant or refractory disease, dose-limiting adverse effects, and the preferred route of administration.
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Affiliation(s)
- Karen L Hardinger
- Division of Pharmacy Practice and Administration, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Daniel C Brennan
- Johns Hopkins Comprehensive Transplant Center, Baltimore, MD, USA
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Hammond SP, Rangaraju M, Sumner M, Timmler B, Chandrasekar P, Avery RK. A Multicenter Assessment of the Outcomes and Toxicities of Foscarnet for Treatment of Acyclovir-Resistant Mucocutaneous Herpes Simplex in Immunocompromised Patients. Open Forum Infect Dis 2024; 11:ofae046. [PMID: 38444818 PMCID: PMC10914364 DOI: 10.1093/ofid/ofae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/24/2024] [Indexed: 03/07/2024] Open
Abstract
Background Acyclovir-resistant mucocutaneous herpes simplex virus (HSV) infection is an uncommon problem typically seen in immunocompromised hosts. Systemic treatment options are limited. The performance of foscarnet and its toxicities in this population are poorly characterized. Methods This was a multicenter retrospective study of adults treated with foscarnet for HSV infection between January 2012 and December 2017. Relevant data were collected including demographics, baseline conditions, previous anti-HSV medications, concomitant medications, HSV outcomes, and adverse events. Acyclovir-resistant HSV infection was defined based on genotypic or phenotypic testing results; refractory infection was defined as infection not improving after 5 days of treatment-dosed antiviral therapy in those not tested for resistance. Results Twenty-nine patients had 31 episodes of HSV (15/18 resistant; among episodes without resistance testing, 7/10 refractory; 3 not evaluable) treated with foscarnet. All patients were immunocompromised including 19 (66%) with hematologic malignancy and 9 (31%) with HIV. Median duration of foscarnet was 16 days (range, 6-85 days). Fifteen episodes (48%) healed by the end of or after foscarnet. Median time to healing among those with resolution was 38 days (range, 9-1088 days). At least 1 adverse event during therapy was reported in 26 (84%) treatment episodes including 23 (74%) that were considered drug related. Common adverse events were electrolyte disturbance (20 [65%]) and kidney dysfunction (13 [42%]). Foscarnet was discontinued in 10 episodes (32%) due to an adverse event, including 6 due to kidney dysfunction. Conclusions Among 31 episodes of HSV treated with foscarnet, only half resolved with treatment, and adverse events were common.
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Affiliation(s)
- Sarah P Hammond
- Divisions of Infectious Diseases and Hematology/Oncology, Massachusetts General Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | - Pranatharthi Chandrasekar
- Karmanos Cancer Institute, Division of Infectious Diseases, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Robin K Avery
- Division of Infectious Diseases, Johns Hopkins University, Baltimore, Maryland, USA
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Pang I, Chen P, Trinh GV, Remberger M, Novitzky-Basso I, Gerbitz A, Kim DD, Kumar R, Lam W, Law AD, Lipton JH, Viswabandya A, Pasic I, Mattsson J, Michelis FV. Letermovir prophylaxis for cytomegalovirus reactivation in allogeneic hematopoietic cell transplant recipients: Single center Canadian data. Eur J Haematol 2024; 112:301-309. [PMID: 37830403 DOI: 10.1111/ejh.14117] [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: 06/15/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) is associated with morbidity and mortality following allogeneic hematopoietic cell transplantation (alloHCT). Letermovir is a novel antiviral agent that prevents CMV reactivation in alloHCT patients, with limited data regarding influence on post-alloHCT outcomes. METHODS We retrospectively examined 273 alloHCT recipients, 158 in the non-letermovir cohort (NLC), and 115 in the cohort using letermovir prophylaxis (LC). Patients that received letermovir were CMV-seropositive and met criteria for high risk of CMV reactivation. RESULTS Median start of letermovir was 21 days post-alloHCT, median duration of prophylaxis was 86 days. Letermovir prophylaxis demonstrated a statistically significant reduction in first CMV reactivation (at 200 days post 63.9% in the NLC vs. 35.7% in the LC; p < .001). On univariate analysis at 1 year, overall survival (OS) for NLC was 79.6% and 79.5% for LC (p = .54). Non relapse mortality (NRM) at 1 year for NLC was 12% and 12.3% for LC (p = .69). Cumulative incidence of relapse (CIR) at 1 year was 13.9% for NLC versus 17.1 for the LC (p = .27). On multivariable analysis, there was no significant difference between the two cohorts for OS, NRM, and CIR. CONCLUSIONS Letermovir prophylaxis started at day +21 post-alloHCT reduced CMV reactivation, with no impact on posttransplant outcomes.
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Affiliation(s)
- Ian Pang
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Peggy Chen
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Gertrude V Trinh
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Mats Remberger
- Department of Medical Sciences, Uppsala University and KFUE, Uppsala University Hospital, Uppsala, Sweden
| | - Igor Novitzky-Basso
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Armin Gerbitz
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Dennis D Kim
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Rajat Kumar
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Wilson Lam
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Arjun D Law
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Jeffrey H Lipton
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Auro Viswabandya
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Ivan Pasic
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Jonas Mattsson
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
| | - Fotios V Michelis
- Hans Messner Allogeneic Transplant Program, Princess Margaret Cancer Centre, Toronto, Canada
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Kotton CN, Torre-Cisneros J, Yakoub-Agha I. Slaying the "Troll of Transplantation"-new frontiers in cytomegalovirus management: A report from the CMV International Symposium 2023. Transpl Infect Dis 2024; 26:e14183. [PMID: 37942955 DOI: 10.1111/tid.14183] [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: 10/05/2023] [Accepted: 10/15/2023] [Indexed: 11/10/2023]
Abstract
The 2023 International CMV Symposium took place in Barcelona in May 2023. During the 2-day meeting, delegates and faculty discussed the ongoing challenge of managing the risk of cytomegalovirus infection (the Troll of Transplantation) after solid organ or hematopoietic cell transplantation. Opportunities to improve outcomes of transplant recipients by applying advances in antiviral prophylaxis or pre-emptive therapy, immunotherapy, and monitoring of cell-mediated immunity to routine clinical practice were debated and relevant educational clinical cases presented. This review summarizes the presentations, cases, and discussions from the meeting and describes how further advances are needed before the Troll of Transplantation is slain.
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Affiliation(s)
- Camille N Kotton
- Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Julian Torre-Cisneros
- Maimónides Institute for Biomedical Research of Cordoba (IMIBIC)/Reina Sofía University Hospital/University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII - CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
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15
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Piret J, Boivin G. Management of Cytomegalovirus Infections in the Era of the Novel Antiviral Players, Letermovir and Maribavir. Infect Dis Rep 2024; 16:65-82. [PMID: 38247977 PMCID: PMC10801527 DOI: 10.3390/idr16010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Cytomegalovirus (CMV) infections may increase morbidity and mortality in immunocompromised patients. Until recently, standard antiviral drugs against CMV were limited to viral DNA polymerase inhibitors (val)ganciclovir, foscarnet and cidofovir with a risk for cross-resistance. These drugs may also cause serious side effects. This narrative review provides an update on new antiviral agents that were approved for the prevention and treatment of CMV infections in transplant recipients. Letermovir was approved in 2017 for CMV prophylaxis in CMV-seropositive adults who received an allogeneic hematopoietic stem cell transplant. Maribavir followed four years later, with an indication in the treatment of adult and pediatric transplant patients with refractory/resistant CMV disease. The target of letermovir is the CMV terminase complex (constituted of pUL56, pUL89 and pUL51 subunits). Letermovir prevents the cleavage of viral DNA and its packaging into capsids. Maribavir is a pUL97 kinase inhibitor, which interferes with the assembly of capsids and the egress of virions from the nucleus. Both drugs have activity against most CMV strains resistant to standard drugs and exhibit favorable safety profiles. However, high-level resistance mutations may arise more rapidly in the UL56 gene under letermovir than low-grade resistance mutations. Some mutations emerging in the UL97 gene under maribavir can be cross-resistant with ganciclovir. Thus, letermovir and maribavir now extend the drug arsenal available for the management of CMV infections and their respective niches are currently defined.
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Affiliation(s)
| | - Guy Boivin
- Centre de Recherche en Infectiologie, CHU de Québec-Université Laval, Quebec City, QC G1V 4G2, Canada;
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von Hoerschelmann E, Münch J, Gao L, Lücht C, Naik MG, Schmidt D, Pitzinger P, Michel D, Avaniadi P, Schrezenmeier E, Choi M, Halleck F, Budde K. Letermovir Rescue Therapy in Kidney Transplant Recipients with Refractory/Resistant CMV Disease. J Clin Med 2023; 13:100. [PMID: 38202107 PMCID: PMC10780128 DOI: 10.3390/jcm13010100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
(1) Background: CMV infections remain a problem after kidney transplantation, particularly if patients are refractory or resistant (r/r) to treatment with valganciclovir (VGCV) or ganciclovir (GCV). (2) Methods: In a single-center retrospective study, kidney transplant recipients (KTR) receiving letermovir (LTV) as rescue therapy for VGCV-/GCV-r/r CMV disease were analyzed regarding CMV history, immunosuppression, and outcomes. (3) Results: Of 201 KTR treated for CMV between 2017 and 2022, 8 patients received LTV following treatment failure with VGCV/GCV. All patients received CMV prophylaxis with VGCV according to the center's protocol, and 7/8 patients had a high-risk (D+/R-) CMV constellation. In seven of eight cases, rising CMV levels occurred during prophylaxis. In seven of eight patients, a mutation in UL97 associated with a decreased response to VGCV/GCV was detected. In four of eight patients, LTV resulted in CMV clearance after 24 ± 10 weeks (16-39 weeks), two of eight patients stabilized at viral loads <2000 cop/mL (6-20 weeks), and two of eight patients developed LTV resistance (range 8-10 weeks). (4) Conclusion: LTV, which is currently evaluated for CMV prophylaxis in kidney transplantation, also shows promising results for the treatment of patients with VGCV/GCV resistance despite the risk of developing LTV resistance. Additional studies are needed to further define its role in the treatment of patients with CMV resistance.
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Affiliation(s)
- Ellen von Hoerschelmann
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Johannes Münch
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Linde Gao
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Christian Lücht
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Marcel G. Naik
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Danilo Schmidt
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Paul Pitzinger
- Institute of Virology, Charité Universitätsmedizin Berlin, Labor Berlin-Charité-Vivantes GmbH, 10117 Berlin, Germany
| | - Detlef Michel
- Institute of Virology, Universitätsklinikum Ulm, 89081 Ulm, Germany
| | - Parthenopi Avaniadi
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Eva Schrezenmeier
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Mira Choi
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Fabian Halleck
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
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Ruiz-Boy S, Pedraza A, Prat M, Salas MQ, Carcelero E, Riu-Viladoms G, Suárez-Lledó M, Monge-Escartín I, Rodríguez-Lobato LG, Martínez-Roca A, Rovira M, Martínez C, Gallego C, Urbano-Ispizua Á, Sánchez J, Marcos MÁ, Fernández-Avilés F. At-Home Foscarnet Administration in Patients with Cytomegalovirus Infection Post-Allogeneic Stem Cell Transplantation: A Unicentric, Safe, and Feasible Program. Pharmaceuticals (Basel) 2023; 16:1741. [PMID: 38139867 PMCID: PMC10748136 DOI: 10.3390/ph16121741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/08/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
Cytomegalovirus (CMV) infection is a relevant cause of morbimortality in patients receiving allogeneic stem cell transplantation (allo-HCT). Foscarnet (FCN) is an effective drug against CMV administered intravenously and usually on an inpatient basis. The Home Care Unit (HCU) for hematologic patients at our hospital designed an at-home FCN administration model to avoid the hospitalization of patients requiring FCN treatment. This study analyzes whether the at-home administration of FCN is as safe and effective as its hospital administration. We collected and compared demographic, clinical, analytical, and economic data of patients with CMV infection post-allo-HCT who received FCN in the hospital (n = 16, 17 episodes) vs. at-home (n = 67, 88 episodes). The proportions of patients with cured CMV infections were comparable between the two groups (65.9% vs. 76.5%, p = 0.395). The median duration of FCN treatment was 15 (interquartile range [IQR] 9-23) and 14 (IQR 11-19) days in the HCU and inpatient cohorts, respectively (p = 0.692). There were no significant differences in the FCN toxicities between groups except for hypocalcemia (26.1% vs. 58.8%, p = 0.007), which was more prevalent in the inpatient cohort. A significant cost-effectiveness was found in the HCU cohort, with a median savings per episode of EUR 5270. It may be concluded that home administration of FCN is a safe, effective, and cost-efficient therapeutic option for patients with CMV infection and disease.
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Affiliation(s)
- Sonia Ruiz-Boy
- Pharmacy Service, Division of Medicines, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (M.P.); (E.C.); (G.R.-V.); (I.M.-E.)
| | - Alexandra Pedraza
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
- Blood Bank Department, Biomedical Diagnostic Center, Blood and Tissue Bank, Hospital Clínic de Barcelona, 08036 Barcelona, Spain
| | - Marta Prat
- Pharmacy Service, Division of Medicines, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (M.P.); (E.C.); (G.R.-V.); (I.M.-E.)
| | - Maria Queralt Salas
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Esther Carcelero
- Pharmacy Service, Division of Medicines, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (M.P.); (E.C.); (G.R.-V.); (I.M.-E.)
| | - Gisela Riu-Viladoms
- Pharmacy Service, Division of Medicines, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (M.P.); (E.C.); (G.R.-V.); (I.M.-E.)
| | - María Suárez-Lledó
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Inés Monge-Escartín
- Pharmacy Service, Division of Medicines, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (M.P.); (E.C.); (G.R.-V.); (I.M.-E.)
| | - Luis Gerardo Rodríguez-Lobato
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Alexandra Martínez-Roca
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
- Home Care and Bone Marrow Transplantation Unit, Department of Hematology, Hospital Clínic de Barcelona, 08036 Barcelona, Spain;
| | - Montserrat Rovira
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Carmen Martínez
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Cristina Gallego
- Home Care and Bone Marrow Transplantation Unit, Department of Hematology, Hospital Clínic de Barcelona, 08036 Barcelona, Spain;
| | - Álvaro Urbano-Ispizua
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
| | - Joan Sánchez
- Financial-Economic Department, Institute of Cancer and Blood Diseases Hospital Clínic de Barcelona, 08036 Barcelona, Spain;
| | - María Ángeles Marcos
- Microbiology Department, Hospital Clínic de Barcelona, University of Barcelona, ISGlobal, CIBERINFEC (Centro de Investigación Biomédica En Red enfermedades INFECciosas), 08036 Barcelona, Spain;
| | - Francesc Fernández-Avilés
- Hematopoietic Stem Cell Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases, Hospital Clínic de Barcelona, IDIBAPS (Institut De Investigacions Biomèdiques August Pi i Sunyer), Josep Carreras Institute, 08036 Barcelona, Spain; (A.P.); (M.Q.S.); (M.S.-L.); (L.G.R.-L.); (A.M.-R.); (M.R.); (C.M.); (Á.U.-I.); (F.F.-A.)
- Home Care and Bone Marrow Transplantation Unit, Department of Hematology, Hospital Clínic de Barcelona, 08036 Barcelona, Spain;
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Kaur R, Purtill D, Cooney J, Cannell P, Wright M, Copeland TS, McGuire M, Boan P. Letermovir for pre-emptive cytomegalovirus therapy after allogeneic hematopoietic cell transplantation. Transpl Infect Dis 2023; 25 Suppl 1:e14147. [PMID: 37676725 DOI: 10.1111/tid.14147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/31/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) is a common cause of morbidity after allogeneic haematopoietic cell transplantation (alloHCT). Pre-emptive therapy (PET) with valganciclovir (VGC) is associated with haematological toxicity. METHODS We included alloHCT patients from 2018 to 2021 where letermovir (LTV) was used for CMV PET because of cytopenias. RESULTS Ten patients were included. Six received VGC prior to LTV. VGC was commenced at median d42, given for median 40 days. LTV was commenced at median d90, given for median 54 days. At commencement of antiviral, CMV viral load was higher for VGC at 3.7 log10 IU/mL, compared to LTV at 2.9 log10 IU/mL. Viral load reduction occurred at 0.18 log10 IU/mL per week for VGC, compared to 0.17 log10 IU/mL per week for LTV. There was no clinically significant CMV viremia after stopping LTV. Cytopenias improved on LTV. CONCLUSION LTV was effective in controlling CMV viremia when it was given at a lower starting CMV viral load and later post alloHCT than VGC. Further study is required of LTV as upfront PET following alloHCT.
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Affiliation(s)
- Raena Kaur
- Department of Haematology, Fiona Stanley Hospital and PathWest Laboratory Medicine WA, Murdoch, Australia
| | - Duncan Purtill
- Department of Haematology, Fiona Stanley Hospital and PathWest Laboratory Medicine WA, Murdoch, Australia
| | - Julian Cooney
- Department of Haematology, Fiona Stanley Hospital and PathWest Laboratory Medicine WA, Murdoch, Australia
| | - Paul Cannell
- Department of Haematology, Fiona Stanley Hospital and PathWest Laboratory Medicine WA, Murdoch, Australia
| | - Matthew Wright
- Department of Haematology, Fiona Stanley Hospital and PathWest Laboratory Medicine WA, Murdoch, Australia
| | | | - Matthew McGuire
- Department of Pharmacy, Fiona Stanley Hospital, Murdoch, Australia
| | - Peter Boan
- Department of Infectious Diseases, Fiona Stanley Hospital, Murdoch, Australia
- Department of Microbiology, PathWest Laboratory Medicine WA, Murdoch, Australia
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19
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Walti CS, Khanna N, Avery RK, Helanterä I. New Treatment Options for Refractory/Resistant CMV Infection. Transpl Int 2023; 36:11785. [PMID: 37901297 PMCID: PMC10600348 DOI: 10.3389/ti.2023.11785] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/26/2023] [Indexed: 10/31/2023]
Abstract
Despite advances in monitoring and treatment, cytomegalovirus (CMV) infections remain one of the most common complications after solid organ transplantation (SOT). CMV infection may fail to respond to standard first- and second-line antiviral therapies with or without the presence of antiviral resistance to these therapies. This failure to respond after 14 days of appropriate treatment is referred to as "resistant/refractory CMV." Limited data on refractory CMV without antiviral resistance are available. Reported rates of resistant CMV are up to 18% in SOT recipients treated for CMV. Therapeutic options for treating these infections are limited due to the toxicity of the agent used or transplant-related complications. This is often the challenge with conventional agents such as ganciclovir, foscarnet and cidofovir. Recent introduction of new CMV agents including maribavir and letermovir as well as the use of adoptive T cell therapy may improve the outcome of these difficult-to-treat infections in SOT recipients. In this expert review, we focus on new treatment options for resistant/refractory CMV infection and disease in SOT recipients, with an emphasis on maribavir, letermovir, and adoptive T cell therapy.
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Affiliation(s)
- Carla Simone Walti
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Biomedicine and Clinical Research, University and University Hospital of Basel, Basel, Switzerland
| | - Nina Khanna
- Division of Infectious Diseases and Hospital Epidemiology, Departments of Biomedicine and Clinical Research, University and University Hospital of Basel, Basel, Switzerland
| | - Robin K. Avery
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Ilkka Helanterä
- Department of Transplantation and Liver Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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20
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Bassel M, Romanus D, Bo T, Sundberg AK, Okala S, Hirji I. Retrospective chart review of transplant recipients with cytomegalovirus infection who received maribavir in the Phase 3 SOLSTICE trial: Data at 52 weeks post-maribavir treatment initiation. Antivir Ther 2023; 28:13596535231195431. [PMID: 37657421 DOI: 10.1177/13596535231195431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) infection is a frequent complication in haematopoietic cell/solid organ transplant (HCT/SOT) recipients. Previous studies report all-cause mortality rates of 31% and 50% in HCT/SOT recipients post-treatment initiation with conventional anti-CMV therapies for refractory or resistant CMV. METHODS This was a multi-country, retrospective medical chart review study of HCT/SOT recipients with refractory CMV infection with or without resistance (R/R) who were randomized to the maribavir arm in the open-label Phase 3 SOLSTICE trial. Patients came from 21 SOLSTICE sites across 6 countries; each site randomized ≥3 patients to the maribavir arm. Patients were followed for 52 weeks (SOLSTICE trial period: 20 weeks; follow-up chart review period: 32 weeks). The primary outcomes were mortality and graft status. RESULTS Of 234 patients who were randomized and received maribavir in SOLSTICE, chart abstraction was completed for all 109 patients enrolled across 21 trial sites (SOT, 68/142; HCT, 41/92). At 52 weeks, overall mortality was 15.6% (17/109) and survival probability was 0.84. Among SOT recipients, survival probability was 0.96, and 3 (4.4%) deaths occurred during the chart review period. For the HCT recipients, survival probability was 0.65 with 14 (34.1%) deaths; 8 occurred during SOLSTICE and 6 during the chart review period. No new graft loss or re-transplantation occurred during the chart review period. CONCLUSIONS Overall mortality at 52 weeks post-maribavir treatment initiation in this sub-cohort of patients from the SOLSTICE trial was lower than that previously reported for similar populations treated with conventional therapies for R/R cytomegalovirus infection.
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Affiliation(s)
| | - Dorothy Romanus
- Takeda Development Center Americas, Inc., Lexington, MA, USA
| | - Tien Bo
- Takeda Development Center Americas, Inc., Lexington, MA, USA
| | | | | | - Ishan Hirji
- Takeda Development Center Americas, Inc., Lexington, MA, USA
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21
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Bottino P, Pastrone L, Curtoni A, Bondi A, Sidoti F, Zanotto E, Cavallo R, Solidoro P, Costa C. Antiviral Approach to Cytomegalovirus Infection: An Overview of Conventional and Novel Strategies. Microorganisms 2023; 11:2372. [PMID: 37894030 PMCID: PMC10608897 DOI: 10.3390/microorganisms11102372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/16/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Human cytomegalovirus (HCMV) is a herpesvirus capable of establishing a lifelong persistence in the host through a chronic state of infection and remains an essential global concern due to its distinct life cycle, mutations, and latency. It represents a life-threatening pathogen for immunocompromised patients, such as solid organ transplanted patients, HIV-positive individuals, and hematopoietic stem cell recipients. Multiple antiviral approaches are currently available and administered in order to prevent or manage viral infections in the early stages. However, limitations due to side effects and the onset of antidrug resistance are a hurdle to their efficacy, especially for long-term therapies. Novel antiviral molecules, together with innovative approaches (e.g., genetic editing and RNA interference) are currently in study, with promising results performed in vitro and in vivo. Since HCMV is a virus able to establish latent infection, with a consequential risk of reactivation, infection management could benefit from preventive treatment for critical patients, such as immunocompromised individuals and seronegative pregnant women. This review will provide an overview of conventional antiviral clinical approaches and their mechanisms of action. Additionally, an overview of proposed and developing new molecules is provided, including nucleic-acid-based therapies and immune-mediated approaches.
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Affiliation(s)
- Paolo Bottino
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Lisa Pastrone
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Antonio Curtoni
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Alessandro Bondi
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Francesca Sidoti
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Elisa Zanotto
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Rossana Cavallo
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
| | - Paolo Solidoro
- Pneumology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy;
| | - Cristina Costa
- Microbiology and Virology Unit, A.O.U. “Città della Salute e della Scienza di Torino”, 10126 Turin, Italy; (L.P.); (A.C.); (A.B.); (F.S.); (E.Z.); (R.C.)
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22
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Mancuso J, Dalia T, Goyal A, Elliott DRF, Shah Z, Vidic A. Cytomegalovirus infection in heart transplant patient presenting as appendicitis. J Cardiol Cases 2023; 28:113-115. [PMID: 37671257 PMCID: PMC10477039 DOI: 10.1016/j.jccase.2023.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/30/2023] [Accepted: 04/23/2023] [Indexed: 09/07/2023] Open
Abstract
Cytomegalovirus (CMV) may manifest in various ways. While immunocompetent hosts may be asymptomatic or present with a mononucleosis-like illness, immunocompromised patients can have organ-specific disease capable of significant morbidity and mortality. CMV appendicitis is a particularly rare presentation. A 22-year-old female with a history of orthotopic heart transplantation presented to our hospital with a three-day history of worsening abdominal pain. A computed tomography scan of her abdomen was consistent with acute uncomplicated appendicitis, and she underwent laparoscopic appendectomy. Pathology revealed acute appendicitis with numerous large cells with intranuclear "owl's eye" inclusions characteristic of CMV. Her CMV viral load was elevated at 327,018 IU/ml. She was started on ganciclovir which resulted in improvement of her CMV level to 30,118 IU/ml within three weeks. CMV is a frequent cause of opportunistic infection in solid organ transplant patients and commonly involves the gastrointestinal tract. Acute appendicitis is a rarely reported complication to consider in the differential diagnosis of abdominal pain in immunocompromised patients. Learning objective Heart transplant recipients are at increased risk for opportunistic infections. Cytomegalovirus (CMV) is a frequent culprit and can present with a broad range of disease. A particularly rare presentation is that of acute appendicitis. We describe a case of a young woman with CMV appendicitis following orthotopic heart transplant.
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Affiliation(s)
- Joseph Mancuso
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Tarun Dalia
- Department of Cardiovascular Diseases, University of Kansas Medical Center, Kansas City, KS, USA
| | - Amandeep Goyal
- Department of Cardiovascular Diseases, University of Kansas Medical Center, Kansas City, KS, USA
| | | | - Zubair Shah
- Department of Cardiovascular Diseases, University of Kansas Medical Center, Kansas City, KS, USA
| | - Andrija Vidic
- Department of Cardiovascular Diseases, University of Kansas Medical Center, Kansas City, KS, USA
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23
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Razonable RR. Oral antiviral drugs for treatment of cytomegalovirus in transplant recipients. Clin Microbiol Infect 2023; 29:1144-1149. [PMID: 36963566 DOI: 10.1016/j.cmi.2023.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 03/26/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) is an opportunistic pathogen responsible for substantial morbidity after solid organ transplantation and haematopoietic stem cell transplantation. Treatment of CMV disease involves a two-pronged approach with antiviral drug treatment coupled with strategies to minimize the intensity of immune suppression. OBJECTIVES This narrative review examines the evidence for the current treatment of CMV disease in transplant recipients, including the use of oral antiviral drugs. SOURCES Literature search was performed on PubMed with keywords cytomegalovirus, transplantation, ganciclovir, valganciclovir, maribavir, letermovir, cidofovir, and foscarnet. CONTENT Intravenous and oral valganciclovir are the standard first-line treatment of cytomegalovirus disease after transplantation. Oral maribavir has demonstrated superior efficacy and safety over CMV DNA polymerase inhibitors for the treatment of refractory or resistant CMV infection. Transplant patients with severe and life-threatening CMV disease, those with very high viral load, and patients with impaired gastrointestinal absorption should still be treated initially with intravenous antiviral drugs, including ganciclovir and foscarnet. Criteria for the safe transition from intravenous therapies to oral antiviral drugs include achieving clinical improvement and satisfactory decline in viral load. Recurrence of CMV viremia and disease is common, particularly among transplant patients who are lymphopenic and have impaired CMV-specific immunity. IMPLICATIONS Oral antiviral drugs for the treatment of CMV infection and disease in transplant recipients have improved the CMV landscape, because they reduce the cost and mitigate the inconvenience and risks related to prolonged hospitalization and the need for long-term intravascular access. However, their antiviral efficacy should be complemented by an intentional strategy of reducing the degree of immune suppression to allow for immunologic recovery that ensures durable control of CMV infection.
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24
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Pednekar P, Graf M, Tuly R, Batt K, Wang C. Gaining consensus around patient risk groups and prognostic profiles to guide CMV management among patients with solid organ transplant: Insights from a Delphi panel with SOT experts. Clin Transplant 2023; 37:e14905. [PMID: 36603193 DOI: 10.1111/ctr.14905] [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: 09/30/2022] [Revised: 12/29/2022] [Accepted: 01/01/2023] [Indexed: 01/07/2023]
Abstract
INTRODUCTION This study aimed to characterize patient risk groups and respective prognostic profiles to optimize clinical decision-making and guide appropriate medical cytomegalovirus (CMV) management among patients with solid organ transplant (SOT). METHODS Between September 2021 and February 2022, a three-round modified Delphi study was conducted to generate consensus among 14 international experts in virology and organ transplantation. Experts were asked about treatment and prognoses for patients in seven distinct clinical scenarios. Furthermore, experts were asked to risk-stratify patients by pre-/post-transplant characteristics. Consensus around opting for/against a treatment was observed if ≥75% or <25% of experts reported ≥50% likelihood to recommend or if treatments were ranked inside/outside the top two options and ≥75% of experts were within 1 standard deviation of the mean rank. RESULTS Experts agreed on several unmet needs in CMV disease management post-SOT, particularly avoidance of treatment-limiting toxicities with conventional CMV therapy and emergence of both primary refractory and drug resistant treatment failures. Experts considered CMV viral load, resistance profile, and route of administration as critical to treatment selection. For newer CMV therapeutic options, experts listed lack of long-term use data, concerns over potential resistance, high cost and limited availability as challenges restricting adoption, and successful patient management. CONCLUSION Experts achieved consensus around patient risk stratifications and factors influencing therapeutic options. Recommendations emerging from this Delphi study may support practicing physicians when confronted with challenging CMV scenarios in SOT patients, but additional experiences with newer anti-CMV agents are needed to re-validate expert consensus and update post-transplant CMV guidelines.
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Affiliation(s)
| | | | | | | | - Connie Wang
- Hennepin Healthcare, Minneapolis, Minnesota, USA
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25
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Recio V, González I, Tarragó D. Cytomegalovirus drug resistance mutations in transplant recipients with suspected resistance. Virol J 2023; 20:153. [PMID: 37464399 PMCID: PMC10355059 DOI: 10.1186/s12985-023-02127-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 07/11/2023] [Indexed: 07/20/2023] Open
Abstract
Resistant CMV infections are challenging complications after SOT and HSCT. Prompt recognition of ARMs is imperative for appropriate therapy. 108 plasma samples from 96 CMV + transplant recipients with suspected resistance were analysed in CNM in a retrospective nationwide study from January 2018 to July 2022 for resistance genotyping. ARMs in UL97 and UL54 were found in 26.87% (18/67) and 10.60% (7/66) of patients, respectively. Patients' ARM distribution in UL97 was as follows: L595S n = 3; L595S/M460I n = 1; L595S/N510S n = 1; L595W n = 1; C603W n = 4; A594V n = 3; A594E n = 1; C607Y n = 1; L397R/T409M/H411L/M460I n = 1; L397I n = 1; H520Q n = 1; four patients showed ARMs in UL54 as well (F412C n = 1; T503I n = 2; P522S n = 1), whereas three patients exhibited ARMs in UL54 only (L501I/T503I/L516R/A834P n = 1; A987G n = 2). L516R in UL54 and L397R/I and H411L in UL97 have been found for the first time in a clinical sample. L595S/W was the most prevalent ARM found to lend resistance to GCV. In UL54 all ARMs lent resistance to GCV and CDV. In addition, A834P, found in one patient, also lent resistance to FOS. CMV load did not differ significantly in patients with or without ARMs, and no differences were found either between patients with ARMs in UL97 or in UL97 and UL54. Despite extensive use of classical antivirals for the treatment of CMV infection after HSCT and SOT, ARMs occurred mainly in viral UL97 kinase, which suggests that CDV and mostly FOS continue to be useful alternatives to nucleoside analogues after genotypic detection of ARMs.
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Affiliation(s)
- Vanessa Recio
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda- Pozuelo km 2, Madrid, 28220, Spain
| | - Irene González
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda- Pozuelo km 2, Madrid, 28220, Spain
| | - David Tarragó
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda- Pozuelo km 2, Madrid, 28220, Spain.
- CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain.
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26
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Tamzali Y, Pourcher V, Azoyan L, Ouali N, Barrou B, Conti F, Coutance G, Gay F, Tourret J, Boutolleau D. Factors Associated With Genotypic Resistance and Outcome Among Solid Organ Transplant Recipients With Refractory Cytomegalovirus Infection. Transpl Int 2023; 36:11295. [PMID: 37398559 PMCID: PMC10307959 DOI: 10.3389/ti.2023.11295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023]
Abstract
Genotypically resistant cytomegalovirus (CMV) infection is associated with increased morbi-mortality. We herein aimed at understanding the factors that predict CMV genotypic resistance in refractory infections and disease in the SOTR (Solid Organ Transplant Recipients) population, and the factors associated with outcomes. We included all SOTRs who were tested for CMV genotypic resistance for CMV refractory infection/disease over ten years in two centers. Eighty-one refractory patients were included, 26 with genotypically resistant infections (32%). Twenty-four of these genotypic profiles conferred resistance to ganciclovir (GCV) and 2 to GCV and cidofovir. Twenty-three patients presented a high level of GCV resistance. We found no resistance mutation to letermovir. Age (OR = 0.94 per year, IC95 [0.089-0.99]), a history of valganciclovir (VGCV) underdosing or of low plasma concentration (OR= 5.6, IC95 [1.69-20.7]), being on VGCV at infection onset (OR = 3.11, IC95 [1.18-5.32]) and the recipients' CMV negative serostatus (OR = 3.40, IC95 [0.97-12.8]) were independently associated with CMV genotypic resistance. One year mortality was higher in the resistant CMV group (19.2 % versus 3.6 %, p = 0.02). Antiviral drugs severe adverse effects were also independently associated with CMV genotypic resistance. CMV genotypic resistance to antivirals was independently associated with a younger age, exposure to low levels of GCV, the recipients' negative serostatus, and presenting the infection on VGCV prophylaxis. This data is of importance, given that we also found a poorer outcome in the patients of the resistant group.
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Affiliation(s)
- Yanis Tamzali
- Sorbonne Université, Paris, France
- Department of Infectious and Tropical Diseases, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
- Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Medicosurgical Unit of Kidney Transplantation, Paris, France
- INSERM UMR 1146, Paris, France
| | - V. Pourcher
- Sorbonne Université, Paris, France
- Department of Infectious and Tropical Diseases, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
- Institut Pierre Louis d’Epidémiologie et de Santé Publique, INSERM UMR, Paris, France
| | - L. Azoyan
- Sorbonne Université, Paris, France
- Department of Infectious and Tropical Diseases, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
| | - N. Ouali
- Department of Nephrology Unité SINRA, Assistance Publique—Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - B. Barrou
- Sorbonne Université, Paris, France
- Department of Infectious and Tropical Diseases, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
- Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Medicosurgical Unit of Kidney Transplantation, Paris, France
- INSERM UMR 1038, Paris, France
| | - F. Conti
- Sorbonne Université, Paris, France
- Department of Hepatogastroenterlogy, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Liver Transplantation Unit, Paris, France
| | - G. Coutance
- Sorbonne Université, Paris, France
- Department of Cardiosurgery, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Fédération de Cardiologie, Paris, France
| | - F. Gay
- Sorbonne Université, Paris, France
- Department of Parasitology and Mycology, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
| | - J. Tourret
- Sorbonne Université, Paris, France
- Department of Infectious and Tropical Diseases, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France
- Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Medicosurgical Unit of Kidney Transplantation, Paris, France
- INSERM UMR 1146, Paris, France
| | - D. Boutolleau
- Sorbonne Université, Paris, France
- Institut Pierre Louis d’Epidémiologie et de Santé Publique, INSERM UMR, Paris, France
- Department of Virology, Assistance Publique—Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Centre National de Référence Herpèsvirus (Laboratoire Associé), Paris, France
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27
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Hume J, Sweeney EL, Lowry K, Fraser C, Clark JE, Whiley DM, Irwin AD. Cytomegalovirus in children undergoing haematopoietic stem cell transplantation: a diagnostic and therapeutic approach to antiviral resistance. Front Pediatr 2023; 11:1180392. [PMID: 37325366 PMCID: PMC10267881 DOI: 10.3389/fped.2023.1180392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
Cytomegalovirus (CMV) is a ubiquitous virus which causes a mild illness in healthy individuals. In immunocompromised individuals, such as children receiving haematopoietic stem cell transplantation, CMV can reactivate, causing serious disease and increasing the risk of death. CMV can be effectively treated with antiviral drugs, but antiviral resistance is an increasingly common complication. Available therapies are associated with adverse effects such as bone marrow suppression and renal impairment, making the choice of appropriate treatment challenging. New agents are emerging and require evaluation in children to establish their role. This review will discuss established and emerging diagnostic tools and treatment options for CMV, including antiviral resistant CMV, in children undergoing haematopoietic stem cell transplant.
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Affiliation(s)
- Jocelyn Hume
- The University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Central Microbiology, Pathology Queensland, Brisbane, QLD, Australia
| | - Emma L. Sweeney
- The University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Kym Lowry
- The University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Chris Fraser
- Blood and Bone Marrow Transplant Program, Queensland Children’s Hospital, Brisbane, QLD, Australia
| | - Julia E. Clark
- Infection Management and Prevention Service, Queensland Children’s Hospital, Brisbane, QLD, Australia
| | - David M. Whiley
- The University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Central Microbiology, Pathology Queensland, Brisbane, QLD, Australia
| | - Adam D. Irwin
- The University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Infection Management and Prevention Service, Queensland Children’s Hospital, Brisbane, QLD, Australia
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28
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Hirji I, Cocks K, Moreno-Koehler A, Sundberg A. Healthcare resource utilization of maribavir versus investigator-assigned therapy in transplant recipients with cytomegalovirus infection refractory (with or without genotypic resistance) to prior treatment: Exploratory analysis of the Phase 3 SOLSTICE trial. Transpl Infect Dis 2023:e14064. [PMID: 37154528 DOI: 10.1111/tid.14064] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/03/2023] [Accepted: 04/01/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV), a common post-transplant infection, is associated with increased healthcare resource utilization. In the Phase 3 SOLSTICE trial, maribavir was superior to investigator-assigned therapy (IAT; valganciclovir/ganciclovir, foscarnet, and cidofovir) for CMV viremia clearance at Week 8 in transplant recipients with confirmed refractory CMV infection with/without resistance. This exploratory analysis evaluated hospital admissions of patients during the SOLSTICE trial. METHODS Patients were randomized to maribavir (400 mg twice daily) or IAT for an 8-week treatment phase with a 12-week follow-up. After ≥3 weeks of treatment, patients on IAT who met pre-specified criteria could enter a maribavir rescue arm (8-week maribavir treatment, 12-week follow-up). Adjusted hospitalization rates and length of hospital stay (LOS) were estimated using negative binomial models adjusting for the time in the relevant study phase. Subgroup analysis for the maribavir rescue arm was conducted. RESULTS Overall, 352 patients were randomized (maribavir: 235; IAT: 117); 22 entered the maribavir rescue arm. After adjusting for treatment exposure, patients on maribavir had a 34.8% reduction in hospitalization rate and 53.8% reduced LOS (days/person/year) versus IAT during the treatment phase. No significant differences between treatments were observed during the follow-up phase, although in both arms, hospitalization rates were lower than in the treatment phase. In the maribavir rescue arm, hospitalizations were 60.6% lower on/after maribavir rescue versus pre-rescue treatment (p = 0.008). CONCLUSION In patients requiring post-transplant CMV treatment, hospitalization rate and LOS were lower for maribavir than IAT, and hospitalization rates were lower on/after maribavir rescue than pre-rescue. Reducing hospitalizations can alleviate the burden on patients and healthcare systems.
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Affiliation(s)
- Ishan Hirji
- Global Evidence & Outcomes, Research and Development, Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
| | - Kim Cocks
- Patient-Centered Outcomes, Adelphi Values, Bollington, UK
| | | | - Aimee Sundberg
- Clinical Science, Research and Development, Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
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29
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Kleiboeker SB. Prevalence of cytomegalovirus antiviral drug resistance in transplant recipients. Antiviral Res 2023; 215:105623. [PMID: 37150409 DOI: 10.1016/j.antiviral.2023.105623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/30/2023] [Accepted: 05/04/2023] [Indexed: 05/09/2023]
Abstract
Cytomegalovirus (CMV) is a significant human pathogen, especially for immunocompromised patients, often treated with one or more antiviral drugs. Although the prevalence of resistance is low, the impact of drug resistant CMV infections on patient outcomes is high and genotypic testing is recommended when resistance is suspected. To assess the prevalence of CMV drug resistance mutations among samples submitted for genotypic testing, 2750 patient sample results were analyzed. Testing was performed by sequencing for ganciclovir (GCV), cidofovir (CDV), foscarnet (FOS), maribavir (MBV) and/or letermovir (LMV) resistance conferring mutations. Of the 2750 patient samples, 826 (30.04%) had resistance to one or more anti-CMV drug. Resistance mutations were most common in UL97, with 27.64% and 9.96% of samples having GCV and MBV mutations, respectively. Resistance mutations in UL54 were less common, with 6.11%, 5.98% and 1.76% of samples having GCV, CDV and FOS mutations, respectively. For LMV, resistance mutations in UL56 were present in 7.17% of samples, with mutations at codon 325 representing 80.95% of the observed LMV resistance mutations. Resistance to two drugs was identified in 215 samples and to 3 or more drugs in 35 samples. While a high prevalence of CMV resistance mutations was identified, this must be taken in the context of healthcare providers submitting samples from patients with suspected resistant CMV strains. For these patients, rapid monitoring for resistance allows treatment modifications based on objective results rather than empiric drug selection, which is particularly relevant given the presence of mutations conferring resistance to more than one drug.
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Affiliation(s)
- Steven B Kleiboeker
- Eurofins Viracor Clinical Diagnostics, 18000 West 99th Street, Lenexa, KS, 66219, USA.
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30
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Ghosh AK, Su YP, Forman M, Keyes RF, Smith BC, Hu X, Ferrer M, Arav-Boger R. Harnessing the Noncanonical Keap1-Nrf2 Pathway for Human Cytomegalovirus Control. J Virol 2023; 97:e0016023. [PMID: 36939350 PMCID: PMC10134830 DOI: 10.1128/jvi.00160-23] [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: 01/29/2023] [Accepted: 03/02/2023] [Indexed: 03/21/2023] Open
Abstract
Host-derived cellular pathways can provide an unfavorable environment for virus replication. These pathways have been a subject of interest for herpesviruses, including the betaherpesvirus human cytomegalovirus (HCMV). Here, we demonstrate that a compound, ARP101, induces the noncanonical sequestosome 1 (SQSTM1)/p62-Keap1-Nrf2 pathway for HCMV suppression. ARP101 increased the levels of both LC3 II and SQSTM1/p62 and induced phosphorylation of p62 at the C-terminal domain, resulting in its increased affinity for Keap1. ARP101 treatment resulted in Nrf2 stabilization and translocation into the nucleus, binding to specific promoter sites and transcription of antioxidant enzymes under the antioxidant response element (ARE), and HCMV suppression. Knockdown of Nrf2 recovered HCMV replication following ARP101 treatment, indicating the role of the Keap1-Nrf2 axis in HCMV inhibition by ARP101. SQSTM1/p62 phosphorylation was not modulated by the mTOR kinase or casein kinase 1 or 2, indicating ARP101 engages other kinases. Together, the data uncover a novel antiviral strategy for SQSTM1/p62 through the noncanonical Keap1-Nrf2 axis. This pathway could be further exploited, including the identification of the responsible kinases, to define the biological events during HCMV replication. IMPORTANCE Antiviral treatment for human cytomegalovirus (HCMV) is limited and suffers from the selection of drug-resistant viruses. Several cellular pathways have been shown to modulate HCMV replication. The autophagy receptor sequestosome 1 (SQSTM1)/p62 has been reported to interact with several HCMV proteins, particularly with components of HCMV capsid, suggesting it plays a role in viral replication. Here, we report on a new and unexpected role for SQSTM1/p62, in HCMV suppression. Using a small-molecule probe, ARP101, we show SQSTM1/p62 phosphorylation at its C terminus domain initiates the noncanonical Keap1-Nrf2 axis, leading to transcription of genes under the antioxidant response element, resulting in HCMV inhibition in vitro. Our study highlights the dynamic nature of SQSTM1/p62 during HCMV infection and how its phosphorylation activates a new pathway that can be exploited for antiviral intervention.
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Affiliation(s)
- Ayan K. Ghosh
- Department of Pediatrics, Division of Infectious Disease, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Yu-Pin Su
- Department of Pediatrics, Division of Infectious Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael Forman
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Robert F. Keyes
- Department of Biochemistry, Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Brian C. Smith
- Department of Biochemistry, Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Xin Hu
- National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, Maryland, USA
| | - Marc Ferrer
- National Center for Advancing Translational Sciences (NCATS), National Institutes of Health, Rockville, Maryland, USA
| | - Ravit Arav-Boger
- Department of Pediatrics, Division of Infectious Disease, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Pediatrics, Division of Infectious Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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31
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Song I, Suttle B, Wu J, Ilic K. Pharmacokinetics and Safety Evaluation of Maribavir in Healthy Japanese and Matched White Participants: A Phase I, Open-Label Study. Clin Pharmacol Drug Dev 2023. [PMID: 37036111 DOI: 10.1002/cpdd.1247] [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: 11/08/2022] [Accepted: 02/21/2023] [Indexed: 04/11/2023]
Abstract
This phase I study compared pharmacokinetics and safety of maribavir in Japanese and White participants, and evaluated dose proportionality in Japanese participants. Under fasting conditions, 12 healthy adult participants of Japanese descent and 12 matched White participants received a single 400-mg dose of maribavir. Japanese participants received 2 further doses of maribavir: 200 mg and 800 mg, or 800 mg and 200 mg, separated by a ≥72-hour washout period. Serial blood samples were collected up to 24 hours after dosing for pharmacokinetic assessments. Following the 400-mg dose, the geometric mean ratios (90% confidence interval) of Japanese versus White participants were 110% (91.7%-133%) for maximum plasma concentration, 122% (96.8%-155%) for area under the plasma concentration-time curve (AUC) from time of dosing to the last measurable concentration, and 125% (98.0%-160%) for AUC extrapolated to infinity. In Japanese participants, maribavir AUC extrapolated to infinity and AUC from time of dosing to the last measurable concentration increased in a dose-proportional fashion over 200-800 mg; maximum plasma concentration increased less than dose proportionally. Seven participants reported treatment-emergent adverse events (TEAEs; Japanese participants, 400 mg: 2 [16.7%], 200 mg: 1 [8.3%]; White participants, 400 mg: 4 [33.3%]), all mild and most commonly dysgeusia. No serious TEAEs or TEAEs leading to discontinuation were reported. This study demonstrated higher maribavir systemic exposure in Japanese than White participants and similar safety outcomes. This difference in exposure is not considered clinically important and its significance remains to be determined.
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Affiliation(s)
- Ivy Song
- Takeda Development Center Americas, Inc., Cambridge, Massachusetts, USA
| | - Ben Suttle
- qPharmetra, LLC, Raleigh, North Carolina, USA
| | - Jingyang Wu
- Takeda Development Center Americas, Inc., Cambridge, Massachusetts, USA
| | - Katarina Ilic
- Takeda Development Center Americas, Inc., Cambridge, Massachusetts, USA
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Acquier M, Taton B, Alain S, Garrigue I, Mary J, Pfirmann P, Visentin J, Hantz S, Merville P, Kaminski H, Couzi L. Cytomegalovirus DNAemia Requiring (Val)Ganciclovir Treatment for More Than 8 Weeks Is a Key Factor in the Development of Antiviral Drug Resistance. Open Forum Infect Dis 2023; 10:ofad018. [PMID: 36817745 PMCID: PMC9933945 DOI: 10.1093/ofid/ofad018] [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] [Received: 11/10/2022] [Accepted: 01/19/2023] [Indexed: 01/25/2023] Open
Abstract
Background Prolonged (val)ganciclovir [(V)GCV] exposure for ≥6 weeks is a known predisposing factor for cytomegalovirus (CMV) drug resistance. However, the selection of this threshold was based on limited data. In this study, we sought to reappraise the risk factors for the development of (V)GCV resistance through a specific focus on kidney transplant recipients (KTRs). Methods This single-center retrospective study included 313 consecutive KTRs treated for a first CMV episode. Adjusted Cox multivariate regression analysis was used for identifying independent risk factors. Results Antiviral drug resistance was identified in 20 (6%) KTRs. A cumulative (V)GCV exposure for more than 6 weeks (regardless of the viral load) was not associated with antiviral drug resistance (hazard ratio [HR] = 2.45, 95% confidence interval [CI] = 0.33-18.30, P = .38). In contrast, persistent CMV DNAemia requiring (V)GCV treatment for more than 8 weeks was the main independent risk factor for antiviral drug resistance (HR = 11.68, 95% CI = 2.62-52.01, P = .001). The (V)GCV treatment for more than 8 weeks was given to 9% and 18% of patients who had persistent or recurrent CMV DNAemia, respectively. These scenarios were associated with the occurrence of drug resistance in 39% and 12% of cases, respectively. Conclusions Cumulative (V)GCV exposure ≥6 weeks regardless of the viral load is not associated with antiviral drug resistance. In contrast, prolonged exposure to (V)GCV during CMV replication (with a cutoff ³8 weeks) seems to be a key factor.
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Affiliation(s)
- M Acquier
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France
| | - B Taton
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France
| | - S Alain
- National Reference Center for Herpes Viruses, Virology Department, Limoges University Hospital, LimogesFrance.,UMR INSERM U1092, RESINFIT, Limoges University, LimogesFrance
| | - I Garrigue
- Laboratory of Virology, Bordeaux University Hospital, Bordeaux, France
| | - J Mary
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France
| | - P Pfirmann
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France
| | - J Visentin
- CNRS-UMR 5164 ImmunoConcEpT, Bordeaux University, Bordeaux, France.,Laboratory of Immunology and Immunogenetics, Bordeaux University Hospital, Bordeaux, France
| | - S Hantz
- National Reference Center for Herpes Viruses, Virology Department, Limoges University Hospital, LimogesFrance.,UMR INSERM U1092, RESINFIT, Limoges University, LimogesFrance
| | - P Merville
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France.,CNRS-UMR 5164 ImmunoConcEpT, Bordeaux University, Bordeaux, France
| | - H Kaminski
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France.,CNRS-UMR 5164 ImmunoConcEpT, Bordeaux University, Bordeaux, France
| | - L Couzi
- Department of Nephrology, Transplantation, Dialysis and Apheresis, Bordeaux University Hospital, Bordeaux, France.,CNRS-UMR 5164 ImmunoConcEpT, Bordeaux University, Bordeaux, France
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Kotton CN, Kamar N. New Insights on CMV Management in Solid Organ Transplant Patients: Prevention, Treatment, and Management of Resistant/Refractory Disease. Infect Dis Ther 2023; 12:333-342. [PMID: 36583845 PMCID: PMC9925645 DOI: 10.1007/s40121-022-00746-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/08/2022] [Indexed: 12/31/2022] Open
Abstract
Cytomegalovirus (CMV) infection can have both direct and indirect effects after solid-organ transplantation, with a significant impact on transplant outcomes. Prevention strategies decrease the risk of CMV disease, although CMV still occurs in up to 50% of high-risk patients. Ganciclovir (GCV) and valganciclovir (VGCV) are the main drugs currently used for preventing and treating CMV. Emerging data suggest that letermovir is as effective as VGCV with fewer hematological side effects. Refractory and resistant CMV also still occur in solid-organ-transplant patients. Maribavir has been shown to be effective and have less toxicity in the treatment of refractory and resistant CMV. In this review paper, we discuss prevention strategies, refractory and resistant CMV, and drug-related side effects and their impact, as well as optimal use of novel anti-CMV therapies.
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Affiliation(s)
- Camille Nelson Kotton
- grid.32224.350000 0004 0386 9924Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, 55 Fruit Street, Cox 5, Boston, MA 02114 USA
- grid.38142.3c000000041936754XHarvard Medical School, Boston, MA USA
| | - Nassim Kamar
- grid.414295.f0000 0004 0638 3479Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, CHU Toulouse Rangueil, TSA 50032, 31059 Toulouse Cedex 9, France
- grid.7429.80000000121866389INSERM UMR 1291, Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse, France
- grid.15781.3a0000 0001 0723 035XPaul Sabatier University, Toulouse, France
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Song I, Chen G, Wu J, Ilic K. Maribavir Pharmacokinetics and Safety in Participants With Moderate Hepatic Impairment: A Phase 1, Open-Label, Single-Dose, Parallel Group Study. J Clin Pharmacol 2023; 63:250-258. [PMID: 36089648 PMCID: PMC10091977 DOI: 10.1002/jcph.2155] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/08/2022] [Indexed: 01/18/2023]
Abstract
Maribavir, an orally bioavailable antiviral, has shown superior activity against posttransplant cytomegalovirus infection compared with conventional antivirals. It is primarily metabolized in the liver. This open-label, single-center study evaluated the effect of hepatic impairment on the pharmacokinetics of maribavir in nontransplant participants. A single 200-mg dose of maribavir was administered orally under fasting conditions to participants with moderate hepatic impairment (Child-Pugh class B) (n = 10) and healthy controls (n = 10) matched for age, weight, sex, and smoking status. Compared with participants with normal hepatic function, maximum plasma concentration (Cmax ) and area under the plasma concentration-time curve (AUC) from time 0 to infinity values for maribavir in participants with moderate hepatic impairment were 1.346-fold (90%CI of geometric mean ratio, 1.091-1.660) and 1.261-fold (0.889-1.787) higher, respectively. However, Cmax and AUC values for unbound maribavir were comparable. For VP 44469, the main metabolite of maribavir, the Cmax and AUC from time 0 to infinity values were 1.190-fold (0.836-1.693) and 1.309-fold (1.007-1.702) higher, respectively, in participants with moderate hepatic impairment. In total, 7 mild treatment-emergent adverse events were reported, all in the moderate hepatic impairment group. Dysgeusia was the most frequently reported treatment-emergent adverse event, at a frequency of 50%. These results indicated that total maribavir concentrations were mildly increased in participants with moderate hepatic impairment, while unbound concentrations were unaffected. Similar maribavir pharmacokinetics in participants with moderate hepatic impairment and normal hepatic function suggest that dose adjustment may not be required for patients with moderate hepatic impairment.
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Affiliation(s)
- Ivy Song
- Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
| | - Grace Chen
- Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
| | - Jingyang Wu
- Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
| | - Katarina Ilic
- Takeda Development Center Americas, Inc., Lexington, Massachusetts, USA
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Khawaja F, Spallone A, Kotton CN, Chemaly RF. Cytomegalovirus infection in transplant recipients: newly approved additions to our armamentarium. Clin Microbiol Infect 2023; 29:44-50. [PMID: 35843567 DOI: 10.1016/j.cmi.2022.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/01/2022] [Accepted: 07/02/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND The burden that cytomegalovirus (CMV) portends for haematopoietic and solid-organ transplant recipients cannot be understated. Valganciclovir and ganciclovir have successfully been used for prevention and treatment of CMV infections, although with serious side effects such as leucopenia and some development of resistance. Until recently, available therapies for ganciclovir-resistant CMV have significant toxicities. Although advances have been made in the field, the unmet medical needs for effective and well-tolerated therapies are significant. OBJECTIVES This review aims to summarise the current and emerging CMV antiviral drugs and discusses future perspectives in the field. SOURCES We searched for relevant articles with pertinent keywords: "Cytomegalovirus OR CMV", "Transplant" and "Antiviral". Articles published after 2019 were given preference. Articles were reviewed by the authors for relevance and impact to the subject of interest. CONTENT We outline in this review current advances in prophylaxis of CMV infection with letermovir, breakthrough CMV infections while on or after prophylaxis, the development of resistant and refractory CMV infections, and the newly approved anti-CMV agent, maribavir, in haematopoietic and solid-organ transplant recipients. IMPLICATIONS Prevention of CMV infections after transplant has improved greatly over the past few years. Despite major advancements, breakthrough CMV infections and development of refractory and resistant CMV infections remain major complications post transplantation. We highlight emerging therapeutics that tolerably and effectively prevent and treat CMV infections, especially refractory and resistant cases.
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Affiliation(s)
- Fareed Khawaja
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Amy Spallone
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Camille N Kotton
- Transplant Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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36
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Balani SS, Sadiq S, Jensen CJ, Kizilbash SJ. Prevention and management of CMV infection in pediatric solid organ transplant recipients. Front Pediatr 2023; 11:1098434. [PMID: 36891229 PMCID: PMC9986459 DOI: 10.3389/fped.2023.1098434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/31/2023] [Indexed: 02/22/2023] Open
Abstract
Human cytomegalovirus (CMV) remains one of the most common opportunistic infections following solid organ transplantation in children. CMV causes morbidity and mortality through direct tissue-invasive disease and indirect immunomodulatory effects. In recent years, several new agents have emerged for the prevention and treatment of CMV disease in solid organ transplant recipients. However, pediatric data remain scarce, and many of the treatments are extrapolated from the adult literature. Controversies exist about the type and duration of prophylactic therapies and the optimal dosing of antiviral agents. This review provides an up-to-date overview of treatment modalities used to prevent and treat CMV disease in solid organ transplant (SOT) recipients.
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Affiliation(s)
- Shanthi S Balani
- Division of Nephrology, Department of Pediatrics, University of Minnesota, Minneapolis, MN, United States
| | - Sanober Sadiq
- Division of Nephrology, Department of Pediatrics, University of California, San Francisco, CA, United States
| | - Chelsey J Jensen
- Department of Solid Organ Transplant, University of Minnesota, Minneapolis, MN, United States
| | - Sarah J Kizilbash
- Division of Nephrology, Department of Pediatrics, University of Minnesota, Minneapolis, MN, United States
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The Ten Most Common Questions on Cytomegalovirus Infection in Hematopoietic Stem Cell Transplant Patients. Clin Hematol Int 2022; 5:21-28. [PMID: 36577863 PMCID: PMC9797381 DOI: 10.1007/s44228-022-00025-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/15/2022] [Indexed: 12/30/2022] Open
Abstract
With the rising number of patients undergoing hematopoietic stem cell transplantation (HSCT), clinicians are more likely to encounter infectious complications in immunocompromised hosts, particularly cytomegalovirus (CMV) infection. Besides the high mortality of CMV end-organ disease, patients with detectable CMV viremia may have worse outcomes and decreased survival even in the absence of end-organ disease. In view of the implications on morbidity and mortality, clinicians should maintain a high index of suspicion and initiate antiviral drugs promptly when CMV infection is confirmed. High-risk patients should be identified in order to provide optimal management. Additionally, novel antiviral agents with a good safety profile and minor adverse events are now available for prophylaxis in high-risk patients and for treatment of resistant or refractory CMV infection. The following review provides concise, yet comprehensive, guidance on the burden and risk factors of CMV in this population, as well as an update on the latest evidence for the management of CMV infection.
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Abstract
Maribavir was approved by the U.S. Food and Drug Administration in November 2021 for the treatment of adult and pediatric patients with post-transplant cytomegalovirus (CMV) infection/disease that is refractory to treatment (with or without genotypic resistance) with ganciclovir, valganciclovir, cidofovir, or foscarnet. Maribavir is an oral benzimidazole riboside with potent and selective multimodal anti-CMV activity. It utilizes a novel mechanism of action which confers activity against CMV strains that are resistant to traditional anti-CMV agents, and also offers a more favorable safety profile relative to the dose-limiting side effects of previously available therapies. Maribavir was initially studied as an agent for CMV prophylaxis in solid organ and hematopoietic stem cell recipients, but initial phase III trials failed to meet clinical efficacy endpoints. It has been more recently studied as a therapeutic agent at higher doses for refractory-resistant (R-R) CMV infections with favorable outcomes. After an overview of maribavir's chemistry and clinical pharmacology, this review will summarize clinical efficacy, safety, tolerability, and resistance data associated with maribavir therapy.
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Kleiboeker HL, Descourouez JL, Schulz LT, Mandelbrot DA, Odorico JS, Rice JP, Saddler CM, Smith JA, Jorgenson MR. Maribavir for the Management of Cytomegalovirus in Adult Transplant Recipients: A Review of the Literature and Practical Considerations. Ann Pharmacother 2022; 57:597-608. [PMID: 36003036 DOI: 10.1177/10600280221118959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To review the efficacy and safety of maribavir for management of cytomegalovirus (CMV) in solid organ transplant recipients. DATA SOURCES A literature search of PubMed and the Cochrane Controlled Trials Register (1960 to early July 2022) was performed using the following search terms: maribavir, 1263W94, and cytomegalovirus. STUDY SELECTION AND DATA EXTRACTION All relevant English-language studies were reviewed and considered, with a focus on phase 3 trials. DATA SYNTHESIS Maribavir, an orally available benzimidazole riboside with minimal adverse effects, was originally studied for universal prophylaxis in phase 3 trials but failed to demonstrate noninferiority over placebo and oral ganciclovir. It was effective for preemptive treatment in a dose-finding Phase 2 study. Maribavir is FDA approved for treatment of refractory/resistant CMV infection based on improved response rate at 8 weeks compared with investigator-assigned therapy (IAT) when initiated at median viral loads less than approximately 10 000 IU/mL (55.7% vs 23.9%, P < 0.001). Recurrence after 8-week treatment for refractory/resistant CMV was high (maribavir 50% vs IAT 39%). Significant drug interactions exist and must be managed by a pharmacotherapy expert to prevent harm. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE The addition of maribavir to the antiviral armamentarium should improve the management of refractory/resistant CMV, allowing early transition from toxic, high-cost, intravenous agents such as foscarnet and outpatient management. Optimal timing of initiation, duration, and potential alternative uses are unclear. CONCLUSION Future studies are needed to fully elucidate the role of maribavir in the management of CMV after transplant.
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Affiliation(s)
- Hanna L Kleiboeker
- Department of Pharmacy, University of Wisconsin Hospital and Clinics, Madison, WI, USA
| | - Jillian L Descourouez
- Department of Pharmacy, University of Wisconsin Hospital and Clinics, Madison, WI, USA
| | - Lucas T Schulz
- Department of Pharmacy, University of Wisconsin Hospital and Clinics, Madison, WI, USA
| | - Didier A Mandelbrot
- Department of Medicine, Division of Nephrology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jon S Odorico
- Department of Surgery, Division of Transplantation, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - John P Rice
- Department of Medicine, Division of Hepatology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Christopher M Saddler
- Department of Medicine, Division of Infectious Diseases, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jeannina A Smith
- Department of Medicine, Division of Infectious Diseases, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Margaret R Jorgenson
- Department of Pharmacy, University of Wisconsin Hospital and Clinics, Madison, WI, USA
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40
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Knight SR. Transplant Trial Watch. Transpl Int 2022; 35:10434. [PMID: 35516976 PMCID: PMC9062802 DOI: 10.3389/ti.2022.10434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/03/2022] [Indexed: 11/24/2022]
Affiliation(s)
- Simon R. Knight
- Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
- Oxford Transplant Centre, Churchill Hospital, Oxford, United Kingdom
- *Correspondence: Simon R. Knight,
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Outcomes of refractory cytomegalovirus (CMV) infection in the first year after allogeneic hematopoietic cell transplantation. Transplant Cell Ther 2022; 28:403.e1-403.e7. [DOI: 10.1016/j.jtct.2022.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/08/2022] [Accepted: 04/17/2022] [Indexed: 12/18/2022]
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Abstract
Recipients of solid organ and hematopoietic stem cell transplantation undergo substantial immune suppression, placing them at risk for opportunistic viral infection. Few randomized controlled trials have been dedicated to the treatment of viral infections in children, and current practices are extrapolated from data generated from adult patients. Here we discuss the prevention and treatment of viral infections using available antiviral drugs, as well as novel agents that may provide benefit to pediatric patients in the future.
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Affiliation(s)
- William R. Otto
- Division of Infectious Diseases, Department of Pediatrics, The Children’s Hospital of Philadelphia, 3401 Civic Center Boulevard, Philadelphia, PA 19104-4399, USA
| | - Abby Green
- Division of Infectious Diseases, Department of Pediatrics, Washington University, 425 S. Euclid Avenue, McDonnell Pediatric Research Building, #5105, St Louis, MO 63106, USA.
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Ude IN, Yeh S, Shantha JG. Cytomegalovirus retinitis in the highly active anti-retroviral therapy era. ANNALS OF EYE SCIENCE 2022; 7:5. [PMID: 35498636 PMCID: PMC9053080 DOI: 10.21037/aes-21-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Cytomegalovirus (CMV) retinitis is an opportunistic infection that has traditionally affected those who have HIV/AIDS or immunosuppressed individuals. CMV retinitis previously infected one-third of AIDS patients in the pre-highly active antiretroviral therapy (HAART) era, but since HAART, Western countries have seen an 80% decrease in the incidence of the disease. More recently, CMV retinitis has been reported in patients who are immunosuppressed, often due to chemotherapy or immunomodulatory medications. The diagnosis of CMV retinitis is often suspected based on clinical findings, with polymerase chain reaction for confirmation of CMV, especially in atypical cases. Highly active antiretroviral therapy and anti-CMV medications (systemic or local) remain the mainstay of treatment. However, for those who are not responsive to HAART, CMV retinitis remains a challenge, and can still lead to significant vision loss. Moreover, a regimen of anti-CMV medications can sometimes lead to viral resistance or organ toxicity. Complications such as immune recovery retinitis and rhegmatogenous retinal detachments continue to threaten the vision of patients who develop CMV retinitis. These complications can arise following initiation of treatment or if patients show disease progression. Proper vision screening for CMV retinitis in immunosuppressed patients at-risk is necessary for early detection and treatment.
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Affiliation(s)
| | - Steven Yeh
- Francis I. Proctor Foundation, University of California, San Francisco, CA, USA
- Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jessica G. Shantha
- Francis I. Proctor Foundation, University of California, San Francisco, CA, USA
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The Synthesis and Anti-Cytomegalovirus Activity of Piperidine-4-Carboxamides. Viruses 2022; 14:v14020234. [PMID: 35215828 PMCID: PMC8876412 DOI: 10.3390/v14020234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 01/04/2023] Open
Abstract
Treatment options for human cytomegalovirus (CMV) remain limited and are associated with significant adverse effects and the selection of resistant CMV strains in transplant recipients and congenitally infected infants. Although most approved drugs target and inhibit the CMV DNA polymerase, additional agents with distinct mechanisms of action are needed for the treatment and prevention of CMV. In a large high throughput screen using our CMV-luciferase reporter Towne, we identified several unique inhibitors of CMV replication. Here, we synthesize and test in vitro 13 analogs of the original NCGC2955 hit (1). Analogs with no activity against the CMV-luciferase at 10 µM and 30 µM (2–6, 10–14) were removed from further analysis. Three analogs (7–9) inhibited CMV replication in infected human foreskin fibroblasts. The EC50 of (1) was 1.7 ± 0.6 µM and 1.99 ± 0.15 µM, based on luciferase and plaque assay, respectively. Compounds 7, 8, and 9 showed similar activities: the EC50 values of 7 were 0.21 ± 0.06 µM (luciferase) and 0.55 ± 0.06 (plaque), of 8: 0.28 ± 0.06 µM and 0.42 ± 0.07, and of 9: 0.30 ± 0.05 µM (luciferase) and 0.35 ± 0.07 (plaque). The CC50 for 7, 8, and 9 in non-infected human foreskin fibroblasts was > 500µM, yielding a selectivity index of >1500. Compounds 1, 7, and 8 were also tested in CMV-infected primary human hepatocytes and showed a dose–response against CMV by luciferase activity and viral protein expression. None of the active compounds inhibited herpes simplex virus 1 or 2. Compounds 7 and 8 inhibited mouse CMV replication in vitro. Both inhibited CMV at late stages of replication; 7 reduced virus yield at all late time points, although not to the same degree as letermovir. Finally, the activity of analog 8 was additive with newly identified CMV inhibitors (MLS8969, NFU1827, MSL8554, and MSL8091) and with ganciclovir. Further structural activity development should provide promising anti-CMV agents for use in clinical studies.
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Cytomegalovirus and other herpesviruses after hematopoietic cell and solid organ transplantation: From antiviral drugs to virus-specific T cells. Transpl Immunol 2022; 71:101539. [PMID: 35051589 DOI: 10.1016/j.trim.2022.101539] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 12/13/2022]
Abstract
Herpesviruses can either cause primary infection or may get reactivated after both hematopoietic cell and solid organ transplantations. In general, viral infections increase post-transplant morbidity and mortality. Prophylactic, preemptive, or therapeutically administered antiviral drugs may be associated with serious side effects and may induce viral resistance. Virus-specific T cells represent a valuable addition to antiviral treatment, with high rates of response and minimal side effects. Even low numbers of virus-specific T cells manufactured by direct selection methods can reconstitute virus-specific immunity after transplantation and control viral replication. Virus-specific T cells belong to the advanced therapy medicinal products, and their production is regulated by appropriate legislation; also, strict safety regulations are required to minimize their side effects.
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Cheng WY, Avery RK, Thompson-Leduc P, Cheung HC, Bo T, Duh MS, Hirji I. Evaluation of treatment patterns, healthcare resource utilization, and costs among patients receiving treatment for cytomegalovirus following allogeneic hematopoietic cell or solid organ transplantation. J Med Econ 2022; 25:367-380. [PMID: 35240904 DOI: 10.1080/13696998.2022.2046388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM Management of cytomegalovirus (CMV) infection/disease in transplant recipients may be complicated by toxicities and resistance to conventional antivirals, adding to the overall healthcare burden. We characterized treatment patterns, healthcare resource utilization (HCRU), and costs to elucidate the healthcare burden associated with CMV therapies post-transplant. MATERIALS AND METHODS A retrospective, longitudinal cohort study of transplant recipients using data from a US commercial insurance claims database (2013-2017) was conducted. Patients with a claim for post-transplant CMV diagnosis and anti-CMV treatment (ganciclovir, valganciclovir, foscarnet, or cidofovir) were identified (Treated CMV cohort) and compared with patients with neither a claim for CMV diagnosis nor anti-CMV treatment (No CMV cohort) for outcomes including HCRU and associated costs. Allogeneic hematopoietic cell transplantation (HCT) or solid organ transplantation (SOT) recipients were analyzed separately. Anti-CMV treatment patterns were assessed in the Treated CMV cohort. Costs were evaluated among subgroups with myelosuppression or nephrotoxicity. RESULTS Overall, 412 allogeneic HCT and 899 SOT patients were included in the Treated CMV cohorts, of which 41.7% and 52.5%, respectively, received multiple antiviral courses. Treated CMV cohorts compared with No CMV cohorts had higher mean monthly healthcare visits per patient (allogeneic HCT: 8.83 vs 6.61, SOT: 5.61 vs 4.45) and had an incremental adjusted mean monthly cost per patient differences of $8,157 (allogeneic HCT, p < .004) and $2,182 (SOT, p < .004). Among Treated CMV cohorts, HCRU and costs increased with additional CMV antiviral treatment courses. Mean monthly costs were higher for patients with than without myelosuppression or nephrotoxicity. LIMITATIONS Results may not be generalizable to patients covered by government insurance or outside the USA. CONCLUSIONS CMV post-transplant managed with conventional treatment is associated with substantial HCRU and costs. The burden remains particularly high for patients requiring multiple treatment courses for post-transplant CMV or for transplant recipients who develop myelosuppression or nephrotoxicity.
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Affiliation(s)
- Wendy Y Cheng
- Health Economics and Outcomes Research, Analysis Group, Inc, Boston, MA, USA
| | - Robin K Avery
- Division of Infectious Diseases, Johns Hopkins University, Baltimore, MD, USA
| | | | - Hoi Ching Cheung
- Health Economics and Outcomes Research, Analysis Group, Inc, Boston, MA, USA
| | - Tien Bo
- Medical Affairs, Takeda Development Center Americas, Inc, Lexington, MA, USA
| | - Mei Sheng Duh
- Health Economics and Outcomes Research, Analysis Group, Inc, Boston, MA, USA
| | - Ishan Hirji
- Global Evidence & Outcomes, Takeda Development Center Americas, Inc, Lexington, MA, USA
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Yin Z, Sun J, Yang Y, Xu N, Jiang L, Fan Z, Huang F, Shi P, Wang Z, Xuan L, Xu J, Liu Q, Yu G. Cidofovir, a choice for salvage treatment of CMV infection in patients with haploidentical hematopoietic stem cell transplantation. Transpl Infect Dis 2021; 24:e13776. [PMID: 34941004 DOI: 10.1111/tid.13776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cidofovir (CDV) is a nucleotide analogue with broad antiviral activities. It remains unclear about the CDV administration for anti-cytomegalovirus (CMV) treatment in patients with haploidentical hematopoietic stem cell transplantation (haplo-HSCT). PATIENTS AND METHODS In this study, 31 out of 101 haplo-HSCT recipients suffered CMV infection in the CT group (conventional treatment) were enrolled into the CDV-ST group (CDV-second-line treatment). These patients were treated with CDV as they failed conventional treatment or they were unavailable to the preemptive antiviral therapy. Nine patients with CMV infection were enrolled into the CDV-FT group (CDV-frontline treatment) and received CDV preemptive therapy. RESULTS In the CDV-ST group, 23/28(82.1%) patients were observed treatment response with a median time of 9 (2-23) days, and 20 (71.8%) among these patients obtained complete response (CR). In the CDV-FT group, 6/8 (75.0%) patients acquired CR with a median of 6 (4-25) days. The treatment response in CDV-treated groups was comparable with those in CT groups. Besides, there was no statistical difference in CMV-related mortality between the three groups (P>0.05). During the follow-up period (Median follow-up:10 (1-28) months), a total of 8/22 (36.4%) patients experienced CMV reactivation in the CDV-ST group, versus 23/62 (37.1%) in CT group (P>0.05). CDV-related toxicities occurred in 13/40 (32.5%) patients, including 6 (15%) reversible nephrotoxicity. CONCLUSION Our study suggests that CDV is potentially an option for the salvage treatment of CMV infection in the haplo-HSCT patients. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zhao Yin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Sun
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ying Yang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Na Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ling Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiping Fan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fen Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Pengcheng Shi
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhixiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Li Xuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jun Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Guopan Yu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Avery RK, Alain S, Alexander BD, Blumberg EA, Chemaly RF, Cordonnier C, Duarte RF, Florescu DF, Kamar N, Kumar D, Maertens J, Marty FM, Papanicolaou GA, Silveira FP, Witzke O, Wu J, Sundberg AK, Fournier M. Maribavir for Refractory Cytomegalovirus Infections With or Without Resistance Post-Transplant: Results From a Phase 3 Randomized Clinical Trial. Clin Infect Dis 2021; 75:690-701. [PMID: 34864943 PMCID: PMC9464078 DOI: 10.1093/cid/ciab988] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Therapies for refractory cytomegalovirus infections (with or without resistance [R/R]) in transplant recipients are limited by toxicities. Maribavir has multimodal anti-cytomegalovirus activity through the inhibition of UL97 protein kinase. METHODS In this phase 3, open-label study, hematopoietic-cell and solid-organ transplant recipients with R/R cytomegalovirus were randomized 2:1 to maribavir 400 mg twice daily or investigator-assigned therapy (IAT; valganciclovir/ganciclovir, foscarnet, or cidofovir) for 8 weeks, with 12 weeks of follow-up. The primary endpoint was confirmed cytomegalovirus clearance at end of week 8. The key secondary endpoint was achievement of cytomegalovirus clearance and symptom control at end of week 8, maintained through week 16. RESULTS 352 patients were randomized (235 maribavir; 117 IAT). Significantly more patients in the maribavir versus IAT group achieved the primary endpoint (55.7% vs 23.9%; adjusted difference [95% confidence interval (CI)]: 32.8% [22.80-42.74]; P < .001) and key secondary endpoint (18.7% vs 10.3%; adjusted difference [95% CI]: 9.5% [2.02-16.88]; P = .01). Rates of treatment-emergent adverse events (TEAEs) were similar between groups (maribavir, 97.4%; IAT, 91.4%). Maribavir was associated with less acute kidney injury versus foscarnet (8.5% vs 21.3%) and neutropenia versus valganciclovir/ganciclovir (9.4% vs 33.9%). Fewer patients discontinued treatment due to TEAEs with maribavir (13.2%) than IAT (31.9%). One patient per group had fatal treatment-related TEAEs. CONCLUSIONS Maribavir was superior to IAT for cytomegalovirus viremia clearance and viremia clearance plus symptom control maintained post-therapy in transplant recipients with R/R cytomegalovirus. Maribavir had fewer treatment discontinuations due to TEAEs than IAT. Clinical Trials Registration. NCT02931539 (SOLSTICE).
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Affiliation(s)
- Robin K Avery
- Division of Infectious Diseases, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sophie Alain
- Department of Virology and National Reference Center for Herpesviruses, Limoges University Hospital, UMR Inserm 1092, University of Limoges, Limoges, France
| | - Barbara D Alexander
- Division of Infectious Diseases and International Health, Duke University, Durham, North Carolina, USA
| | - Emily A Blumberg
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control, and Employee Health, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Catherine Cordonnier
- Haematology Department, Henri Mondor Hospital and University Paris-Est-Créteil, Créteil, France
| | - Rafael F Duarte
- Department of Haematology, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Diana F Florescu
- Infectious Diseases Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, INFINITY-Inserm U1291-CNRS U5051, University Paul Sabatier, Toulouse, France
| | - Deepali Kumar
- Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Johan Maertens
- Haematology Department, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | | | - Genovefa A Papanicolaou
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA,Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Fernanda P Silveira
- Department of Medicine, Division of Infectious Diseases, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Oliver Witzke
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Medicine Essen, University Duisburg-Essen, Essen, Germany
| | - Jingyang Wu
- Biostatistics, Takeda Development Center Americas, Inc, Lexington, Massachusetts, USA
| | - Aimee K Sundberg
- Clinical Sciences, Takeda Development Center Americas, Inc, Lexington, Massachusetts, USA
| | - Martha Fournier
- Correspondence: M. Fournier, Takeda Development Center Americas, Inc, 300 Shire Way, Lexington, MA 02421 ()
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Yong MK, Shigle TL, Kim YJ, Carpenter PA, Chemaly RF, Papanicolaou GA. American Society for Transplantation and Cellular Therapy Series: #4 - Cytomegalovirus treatment and management of resistant or refractory infections after hematopoietic cell transplantation. Transplant Cell Ther 2021; 27:957-967. [PMID: 34560310 DOI: 10.1016/j.jtct.2021.09.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 11/29/2022]
Abstract
The Practice Guidelines Committee of the American Society of Transplantation and Cellular Therapy (ASTCT) partnered with its Transpl. Infect. Dis. Special Interest Group (TID-SIG) to update its 2009 compendium-style infectious disease guidelines for hematopoietic cell transplantation (HCT). A new approach was employed with the goal of better serving clinical providers by publishing each standalone topic in the infectious diseases series as a concise format of frequently asked questions (FAQ), tables, and figures. Adult and pediatric infectious diseases and HCT content experts developed and answered FAQs. Topics were finalized with harmonized recommendations that were made by assigning an A through E strength of recommendation paired with a level of supporting evidence graded I through III. The fourth topic in the series focuses on the management and treatment of cytomegalovirus (CMV) resistant and refractory infections. The diagnosis, definitions of resistant and refractory CMV, risk factors, virological genotypes and treatment algorithms are reviewed.
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Affiliation(s)
- Michelle K Yong
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, 3000, Australia; Department of Infectious Diseases, Royal Melbourne Hospital, Melbourne Victoria, 3050, Australia.
| | - Terri Lynn Shigle
- Division of Pharmacy, The University of Texas MD Anderson Cancer Centre, Houston, TX, USA
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Paul A Carpenter
- Clinical Research Division, Fred Hutchinson Cancer Research Centre, Seattle, WA, USA
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control, & Employee Health, The University of Texas MD Anderson Cancer Centre, Houston, TX, USA
| | - Genovefa A Papanicolaou
- Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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50
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Lodding IP, Jørgensen M, Bennedbæk M, Kirkby N, Naegele K, Gustafsson F, Perch M, Rasmussen A, Sengeløv H, Sørensen SS, Hirsch HH, Lundgren JD. Development and Dynamics of Cytomegalovirus UL97 Ganciclovir Resistance Mutations in Transplant Recipients Detected by Next-Generation Sequencing. Open Forum Infect Dis 2021; 8:ofab462. [PMID: 34660835 PMCID: PMC8514173 DOI: 10.1093/ofid/ofab462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/03/2021] [Indexed: 11/13/2022] Open
Abstract
Background (Val)ganciclovir resistance mutations in CMV UL97 (UL97-GCV-R) complicate anti-CMV therapy in recipients of solid organ and hematopoietic stem cell transplants, but comprehensive data on prevalence, emergence, and outcome are scarce. Methods Using next-generation sequencing (NGS; Illumina MiSeq platform), we analyzed UL97-GCV-R in patients with available plasma samples and refractory CMV replication/DNAemia (n = 87) containing viral loads ≥910 IU/mL. Twenty-one patients with CMV DNAemia resolving under antiviral therapy were analyzed as controls. Detected mutations were considered induced and of potential clinical significance if they increased by ≥10% compared with the first detected frequency or if they had a maximum frequency ≥25%. Results Nineteen of 87 (21.8%) with refractory CMV replication had ≥1 UL97-GCV-R detected by NGS, in comparison to 0/21 of the controls (P = .02). One-third of the recipients had 2 or more induced UL97-GCV-R mutations. The most frequently induced mutations affected codons 595 (42% [8/19]), 594 (32% [6/19]), and 603 (32% [6/19]). C592G was present in all episodes of both cases and controls at frequencies <15%, but never induced. UL97-GCV-R tended to be more frequent in donor/recipient CMV immunoglobulin G mismatch or following failure to complete primary prophylaxis, and many developed invasive CMV disease. Conclusions UL97-GCV-R is common among transplant patients with refractory CMV replication. Early testing by NGS allows for identification of major mutations at codons 595, 594, and 603 and excludes a major role of C592G in ganciclovir resistance. Large prospective studies on UL97-GCV-R are warranted.
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Affiliation(s)
- Isabelle P Lodding
- Centre of Excellence for Health, Immunity and Infections (CHIP), Rigshospitalet, Copenhagen, Denmark.,Department of Haematology, Rigshospitalet, Copenhagen, Denmark
| | - Mette Jørgensen
- Centre of Excellence for Health, Immunity and Infections (CHIP), Rigshospitalet, Copenhagen, Denmark
| | - Marc Bennedbæk
- Centre of Excellence for Health, Immunity and Infections (CHIP), Rigshospitalet, Copenhagen, Denmark
| | - Nikolai Kirkby
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
| | - Klaudia Naegele
- Clinical Virology, Laboratory Medicine, University Hospital Basel, Basel, Switzerland.,Transplantation & Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section for Lung Transplantation, Rigshospitalet, Copenhagen, Denmark
| | - Allan Rasmussen
- Department of Abdominal Surgery, Rigshospitalet, Copenhagen, Denmark
| | - Henrik Sengeløv
- Department of Haematology, Rigshospitalet, Copenhagen, Denmark
| | - Søren S Sørensen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Nephrology, Rigshospitalet, Copenhagen, Denmark
| | - Hans H Hirsch
- Clinical Virology, Laboratory Medicine, University Hospital Basel, Basel, Switzerland.,Transplantation & Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland.,Infectious Diseases & Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Jens D Lundgren
- Centre of Excellence for Health, Immunity and Infections (CHIP), Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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