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Wall D, Alhusayen R, Arents B, Apfelbacher C, Balogh EA, Bokhari L, Bloem M, Bosma AL, Burton T, Castelo-Soccio L, Fagan N, Feldman SR, Fletcher G, Flohr C, Freeman E, French LE, Griffiths CEM, Hruza GJ, Ingram JR, Kappelman MD, Lara-Corrales I, Lim HW, Meah N, McMahon DE, Mahil SK, McNicoll I, Musters A, Naik HB, Sinclair R, Smith CH, Spuls P, Tobin DJ, York K, Irvine AD. Learning from disease registries during a pandemic: Moving toward an international federation of patient registries. Clin Dermatol 2021; 39:467-478. [PMID: 34518006 PMCID: PMC8432911 DOI: 10.1016/j.clindermatol.2021.01.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
High-quality dermatology patient registries often require considerable time to develop and produce meaningful data. Development time is influenced by registry complexity and regulatory hurdles that vary significantly nationally and institutionally. The rapid emergence of the coronavirus disease 2019 (COVID-19) global pandemic has challenged health services in an unprecedented manner. Mobilization of the dermatology community in response has included rapid development and deployment of multiple, partially harmonized, international patient registries, reinventing established patient registry timelines. Partnership with patient organizations has demonstrated the critical nature of inclusive patient involvement. This global effort has demonstrated the value, capacity, and necessity for the dermatology community to adopt a more cohesive approach to patient registry development and data sharing that can lead to myriad benefits. These include improved utilization of limited resources, increased data interoperability, improved ability to rapidly collect meaningful data, and shortened response times to generate real-world evidence. We call on the global dermatology community to support the development of an international federation of patient registries to consolidate and operationalize the lessons learned during this pandemic. This will provide an enduring means of applying this knowledge to the maintenance and development of sustainable, coherent, and impactful patient registries of benefit now and in the future.
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Affiliation(s)
- Dmitri Wall
- Hair Restoration Blackrock, Dublin, Ireland; National and International Skin Registry Solutions (NISR), Charles Institute of Dermatology, University College Dublin, Dublin, Ireland; School of Medicine, University College Dublin, Dublin, Ireland.
| | - Raed Alhusayen
- Division of Dermatology and Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Bernd Arents
- Dutch Association for People with Atopic Dermatitis, Nijkerk, the Netherlands
| | - Christian Apfelbacher
- Institute of Social Medicine and Health Systems Research, Medical Faculty, Otto von Guericke University Magdeburg, Magdeburg, Germany; Family Medicine and Primary Care, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Esther A Balogh
- Center for Dermatology Research, Department of Dermatology, Wake Forest School of Medicine, Winston Salem, North Carolina, USA
| | | | - Manja Bloem
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Amsterdam, The Netherlands
| | - Angela L Bosma
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Amsterdam, The Netherlands
| | | | - Leslie Castelo-Soccio
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA; University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | - Nicole Fagan
- University of Dublin, Trinity College, Dublin, Ireland
| | - Steven R Feldman
- Center for Dermatology Research, Department of Dermatology, Wake Forest School of Medicine, Winston Salem, North Carolina, USA
| | - Godfrey Fletcher
- National and International Skin Registry Solutions (NISR), Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Carsten Flohr
- Unit for Population-Based Dermatology Research, St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Esther Freeman
- Massachusetts General Hospital Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Lars E French
- Department of Dermatology, University Hospital, Munich University of Ludwig Maximilian, Munich, Germany
| | - Christopher E M Griffiths
- Dermatology Centre, The University of Manchester and NIHR Manchester Biomedical Research Centre, Manchester, UK
| | - George J Hruza
- St. Louis University Department of Dermatology, St. Louis, Missouri, USA
| | - John R Ingram
- Department of Dermatology, Division of Infection & Immunity, Cardiff University, Cardiff, UK
| | - Michael D Kappelman
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Irene Lara-Corrales
- Section of Dermatology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Henry W Lim
- Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA
| | - Nekma Meah
- Sinclair Dermatology, Melbourne, Australia
| | - Devon E McMahon
- Massachusetts General Hospital Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - Satveer K Mahil
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Ian McNicoll
- Centre for Health Informatics and Multiprofessional Education (CHIME), University College London, London, UK
| | - Annelie Musters
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Amsterdam, The Netherlands
| | - Haley B Naik
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA
| | | | - Catherine H Smith
- St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Phyllis Spuls
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Amsterdam, The Netherlands
| | - Desmond J Tobin
- The Charles Institute of Dermatology, School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - Katherine York
- Netcare Greenacres Hospital, Port Elizabeth, South Africa
| | - Alan D Irvine
- National and International Skin Registry Solutions (NISR), Charles Institute of Dermatology, University College Dublin, Dublin, Ireland; Clinical Medicine, Trinity College, Dublin, Ireland
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Ryan C. Adalimumab treatment for psoriasis – safety in numbers. Br J Dermatol 2019; 180:14-15. [DOI: 10.1111/bjd.17322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Ryan
- Department of Dermatology Blackrock Clinic Dublin Ireland
- School of Medicine University College Dublin Dublin Ireland
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Rønholt K, Iversen L. Old and New Biological Therapies for Psoriasis. Int J Mol Sci 2017; 18:E2297. [PMID: 29104241 PMCID: PMC5713267 DOI: 10.3390/ijms18112297] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 02/07/2023] Open
Abstract
Biological therapy became available for psoriasis with the introduction of alefacept at the beginning of this century. Up to then, systemic treatment options comprised small molecule drugs, targeting the immune system in a non-specific manner. The first biologics targeted T-cell activation and migration and served as an alternative to small molecules. However, significant improvement in outcome was first accomplished with the introduction of tumor necrosis factor-α inhibitors that were already approved for other inflammatory disorders, including rheumatic diseases. Along with the progress in understanding psoriasis pathogenesis, highly targeted and effective therapies have since developed with the perspective not only to improve but to clear psoriasis. These accomplishments enable future achievement of advanced goals to individualize treatment best suited for each patient. Mechanistic studies with patients treated with the new highly targeted biologics may guide us towards these goals. This review offers an overview of biologics developed for psoriasis and illustrate a historical progress in the treatment of this common chronic inflammatory skin condition.
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Affiliation(s)
- Kirsten Rønholt
- Department of Dermatology, Aarhus University Hospital, 8000 Aarhus, Denmark.
| | - Lars Iversen
- Department of Dermatology, Aarhus University Hospital, 8000 Aarhus, Denmark.
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Torres T, Puig L. Treatment goals for psoriasis: Should PASI 90 become the standard of care? ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.adengl.2014.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Treatment goals for psoriasis: Should PASI 90 become the standard of care? ACTAS DERMO-SIFILIOGRAFICAS 2015; 106:155-7. [DOI: 10.1016/j.ad.2014.10.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 10/01/2014] [Indexed: 11/19/2022] Open
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Oishi K, Hamaguchi Y, Matsushita T, Hasegawa M, Okiyama N, Dernedde J, Weinhart M, Haag R, Tedder TF, Takehara K, Kohsaka H, Fujimoto M. A crucial role of L-selectin in C protein-induced experimental polymyositis in mice. Arthritis Rheumatol 2014; 66:1864-71. [PMID: 24644046 DOI: 10.1002/art.38630] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 03/11/2014] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To investigate the role of adhesion molecules in C protein-induced myositis (CIM), a murine model of polymyositis (PM). METHODS CIM was induced in wild-type mice, L-selectin-deficient (L-selectin(-/-) ) mice, intercellular adhesion molecule 1 (ICAM-1)-deficient (ICAM-1(-/-) ) mice, and mice deficient in both L-selectin and ICAM-1 (L-selectin(-/-) ICAM-1(-/-) mice). Myositis severity, inflammatory cell infiltration, and messenger RNA expression in the inflamed muscles were analyzed. The effect of dendritic polyglycerol sulfate, a synthetic inhibitor that suppresses the function of L-selectin and endothelial P-selectin, was also examined. RESULTS L-selectin(-/-) mice and L-selectin(-/-) ICAM-1(-/-) mice developed significantly less severe myositis compared to wild-type mice, while ICAM-1 deficiency did not inhibit the development of myositis. L-selectin(-/-) mice that received wild-type T cells developed myositis. Treatment with dendritic polyglycerol sulfate significantly diminished the severity of myositis in wild-type mice compared to treatment with control. CONCLUSION These data indicate that L-selectin plays a major role in the development of CIM, whereas ICAM-1 plays a lesser role, if any, in the development of CIM. L-selectin-targeted therapy may be a candidate for the treatment of PM.
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Zaheer F, Berger JR. Treatment-related progressive multifocal leukoencephalopathy: current understanding and future steps. Ther Adv Drug Saf 2014; 3:227-39. [PMID: 25083238 DOI: 10.1177/2042098612453849] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating disorder of the brain caused by a ubiquitous polyomavirus, JC virus. PML is almost always associated with some underlying immunosuppression and acquired immune deficiency syndrome has been the most common predisposing disorder. Recently, different pharmacological agents have been demonstrated to increase the risk of PML. Therapies that predispose people to PML can be classified into three categories: therapies that uniquely increase the risk for the disorder, such as the monoclonal antibodies natalizumab and efalizumab; therapies that appear to increase the risk in individuals already at risk of PML due to pre-existing conditions, such as rituximab and mycophenolate mofetil; and therapies with a mechanism of action that might suggest a potential for increased PML risk and/or with which rare cases of PML have been observed. Unlike the latter two classes, therapeutic agents uniquely increasing the risk of PML are associated with a much greater prevalence of the disorder and a latent interval from the time of drug initiation to the development of PML. PML development with pharmacological agents has provided new insight into the pathogenesis of this devastating disorder. This review focuses on the risks of PML with multiple pharmacological agents, the proposed pathogenesis with these agents, and potential risk mitigation strategies.
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Affiliation(s)
- Fariha Zaheer
- Department of Neurology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Joseph R Berger
- Department of Neurology, University of Kentucky, Kentucky Clinic Room L-445, 740 S. Limestone St., Lexington, KY 40536, USA
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Abstract
Psoriasis is a common chronic inflammatory skin disease with a spectrum of clinical phenotypes and results from the interplay of genetic, environmental, and immunological factors. Four decades of clinical and basic research on psoriasis have elucidated many of the pathogenic mechanisms underlying disease and paved the way to effective targeted therapies. Here, we review this progress and identify future directions of study that are supported by a more integrative research approach and aim at further improving the patients' life.
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Affiliation(s)
- Paola Di Meglio
- Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Federica Villanova
- St. John's Institute of Dermatology, King's College London, London SE1 9RT, United Kingdom National Institute for Health Research GSTT/KCL Comprehensive Biomedical Research Centre, Guy's and St. Thomas' National Health Service Foundation Trust, London SE1 9RT, United Kingdom
| | - Frank O Nestle
- St. John's Institute of Dermatology, King's College London, London SE1 9RT, United Kingdom National Institute for Health Research GSTT/KCL Comprehensive Biomedical Research Centre, Guy's and St. Thomas' National Health Service Foundation Trust, London SE1 9RT, United Kingdom
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Brennan M, Cox D. The therapeutic potential of I-domain integrins. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 819:157-78. [PMID: 25023174 DOI: 10.1007/978-94-017-9153-3_11] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Due to their role in processes central to cancer and autoimmune disease I-domain integrins are an attractive drug target. Both antibodies and small molecule antagonists have been discovered and tested in the clinic. Much of the effort has focused on αLβ2 antagonists. Maybe the most successful was the monoclonal antibody efalizumab, which was approved for the treatment of psoriasis but subsequently withdrawn from the market due to the occurrence of a serious adverse effect (progressive multifocal leukoencephalopathy). Other monoclonal antibodies were tested for the treatment of reperfusion injury, post-myocardial infarction, but failed to progress due to lack of efficacy. New potent small molecule inhibitors of αv integrins are promising reagents for treating fibrotic disease. Small molecule inhibitors targeting collagen-binding integrins have been discovered and future work will focus on identifying molecules selectively targeting each of the collagen receptors and identifying appropriate target diseases for future clinical studies.
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Affiliation(s)
- Marian Brennan
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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Abstract
The treatment of psoriasis has been revolutionized since the introduction of biologic therapies. Prior to their introduction, it was unclear if psoriasis was primarily a keratinocyte signaling dysfunction or an autoimmune T-cell mediated pathway. Nonspecific T-cell targeting treatments had been used with some success, but they were limited by a narrow therapeutic index. The nonspecific nature of these agents was fraught with side effects, and the efficacy of these treatments pales in comparison to current treatments. The initial biologic molecules, alefacept and efalizumab, were not specific for any T-cell driven pathway, and neither are currently available in the USA. The successors to these early therapies have shown high efficacy and low side effects in psoriasis and other autoimmune diseases through the specific targeting of tumor necrosis factor-alpha (TNF-α). Since the initial use of antitumor necrosis factor agents, a renaissance in our understanding of psoriasis has been underway, leading to the elucidation of the T-helper 17 (Th17) from the Th1 pathway. With each new treatment, the pathogenesis for psoriasis continues to be more defined, allowing for improved targeted therapies and the ability to achieve new milestones in efficacy.
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Affiliation(s)
| | | | - Henry K Wong
- College of Medicine, Ohio State University, Columbus, OH, USA
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12
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Rustin M. Long-term safety of biologics in the treatment of moderate-to-severe plaque psoriasis: review of current data. Br J Dermatol 2012; 167 Suppl 3:3-11. [DOI: 10.1111/j.1365-2133.2012.11208.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Manikwar P, Kiptoo P, Badawi AH, Büyüktimkin B, Siahaan TJ. Antigen-specific blocking of CD4-specific immunological synapse formation using BPI and current therapies for autoimmune diseases. Med Res Rev 2012; 32:727-64. [PMID: 21433035 PMCID: PMC4441537 DOI: 10.1002/med.20243] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this review, we discuss T-cell activation, etiology, and the current therapies of autoimmune diseases (i.e., MS, T1D, and RA). T-cells are activated upon interaction with antigen-presenting cells (APC) followed by a "bull's eye"-like formation of the immunological synapse (IS) at the T-cell-APC interface. Although the various disease-modifying therapies developed so far have been shown to modulate the IS and thus help in the management of these diseases, they are also known to present some undesirable side effects. In this study, we describe a novel and selective way to suppress autoimmunity by using a bifunctional peptide inhibitor (BPI). BPI uses an intercellular adhesion molecule-1 (ICAM-1)-binding peptide to target antigenic peptides (e.g., proteolipid peptide, glutamic acid decarboxylase, and type II collagen) to the APC and therefore modulate the immune response. The central hypothesis is that BPI blocks the IS formation by simultaneously binding to major histocompatibility complex-II and ICAM-1 on the APC and selectively alters the activation of T cells from T(H)1 to T(reg) and/or T(H)2 phenotypes, leading to tolerance.
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Affiliation(s)
- Prakash Manikwar
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KA 66047, USA
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Fotino C, Pileggi A. Blockade of leukocyte function antigen-1 (LFA-1) in clinical islet transplantation. Curr Diab Rep 2011; 11:337-44. [PMID: 21755435 DOI: 10.1007/s11892-011-0214-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Carmen Fotino
- Diabetes Research Institute, University of Miami, Miami, FL 33136, USA.
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Jevnikar Z, Obermajer N, Kos J. LFA-1 fine-tuning by cathepsin X. IUBMB Life 2011; 63:686-93. [PMID: 21796748 DOI: 10.1002/iub.505] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 04/20/2011] [Indexed: 01/14/2023]
Abstract
The adhesion molecule lymphocyte function-associated antigen (LFA)-1 plays a key role in immune surveillance and response. Its conformation is spatially and temporally regulated, enabling adhesion and deadhesion during T-cell migration. LFA-1 adhesion to its major ligand intercellular adhesion molecule 1 is controlled by adaptor proteins which bind the cytoplasmic tail of the β (2) subunit. Cathepsin X, a cysteine carboxypeptidase, promotes T-cell migration and morphological changes by cleaving the β (2) cytoplasmic tail of LFA-1. In this way, it modulates the affinity of LFA-1 for structural adaptors talin-1 and α-actinin-1 and enables the stepwise transition between intermediate and high-affinity conformations of LFA-1, an event that is necessary for effective T-cell function. Cathepsin X regulation that would allow precise modulation of LFA-1 affinity has a great potential for anti-LFA-1 therapy.
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Affiliation(s)
- Zala Jevnikar
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia.
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Prignano F, Zanieri F, Mokhtarzadeh S, Lotti T. Efalizumab-induced severe thrombocytopenia can be resolved. Biologics 2011; 2:923-7. [PMID: 19707471 PMCID: PMC2727906 DOI: 10.2147/btt.s4377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Efalizumab is a monoclonal a humanized recombinant IgG1 monoclonal antibody which targets the CD11a, the alpha-subunit of LFA-1 (lymphocyte function-associated antigen-1). It acts by blocking the T-lymphocyte pathogenetic mechanisms of psoriasis. Thrombocytopenia is an adverse event that occurs during therapy. Thrombocytopenia can be mild and can occur quite early during treatment, together with leukocytosis. Both adverse events tend to normalize with ongoing therapy, or, in cases worsening, with therapy suspension. There have been multiple reports of thrombocytopenia associated with efalizumab therapy for the treatment of psoriasis. The general recommendation is to check platelet counts monthly for the first 3 months of efalizumab therapy, then every 3 months for the duration of therapy. According to our experience on a wide range of patients, it is useful to check platelets every month for the first 6 months of therapy. We report a case of efalizumab-associated thrombocytopenia that occurred after 16 weeks of therapy together with clinical worsening of skin lesions. The peculiarity of our case is the absence of signs and symptoms linked to thrombocytopenia and the quick return to normal platelet count without corticosteroid therapy.
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Affiliation(s)
- Francesca Prignano
- University Unit of Dermatology and Physiotherapy, School of Medicine, University of Florence, Florence, Italy
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Kuschei WM, Leitner J, Majdic O, Pickl WF, Zlabinger GJ, Grabmeier-Pfistershammer K, Steinberger P. Costimulatory signals potently modulate the T cell inhibitory capacity of the therapeutic CD11a antibody Efalizumab. Clin Immunol 2011; 139:199-207. [PMID: 21414849 DOI: 10.1016/j.clim.2011.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 01/28/2011] [Accepted: 02/02/2011] [Indexed: 10/18/2022]
Abstract
The therapeutic CD11a antibody Efalizumab interferes with psoriasis pathogenesis by blocking T cell activation and migration. We have performed a detailed analysis on its effects during the activation of human T cells and found that the capability of Efalizumab to inhibit proliferation and cytokine production of T cells critically depends on the quality and quantity of costimulatory signals. Efalizumab potently inhibited the proliferation and cytokine production of human T cells costimulated via ICOS, OX40, CD27 or 4-1BB, but did not significantly inhibit T cells that received stimuli via CD2 or CD28. The capacity of CD2 and CD28 signals to interfere with the T cell inhibitory effects of Efalizumab was also observed upon stimulation of T cells with allogeneic DC. Furthermore, studies with T cells from psoriasis patients indicated that Efalizumab therapy induces inhibition of T cell responses that can be reverted by CD2 or CD28 signals.
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Affiliation(s)
- Werner M Kuschei
- Institute of Immunology, Center of Physiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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18
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Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating disease of the brain due to a polyoma virus, JC virus. Despite the ubiquity of this virus, PML is rare and almost always seen in association with an underlying immunosuppressive condition. In the last 30 years, AIDS has been the most common predisposing factor. The observation of PML attending the use of certain monoclonal antibody therapies and other pharmacological agents has raised concerns about the safety profile of these agents, but has also provided a window into the pathogenesis of PML. Certain agents, such as the monoclonal antibodies natalizumab, an α4β1 and α4β7 integrin inhibitor, and efalizumab, an antibody directed against CD11a, appear to uniquely predispose to PML. Prior to their introduction for multiple sclerosis and Crohn's disease with respect to natalizumab, and psoriasis with respect to efalizumab, PML had never been observed with these disorders. PML occurring with other agents that currently carry US FDA-mandated 'black-box' warnings, such as rituximab, an antibody directed to CD20, or mycophenolate mofetil, a drug that inhibits T- and B-cell proliferation, typically occur in the background of underlying disorders that have already been identified as risks for PML. This review will focus on the available data regarding the risk for PML with monoclonal antibodies and other drugs. A biologically plausible explanation for the increased risk of PML will be proposed, as well as potential strategies for mitigating disease risk.
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Affiliation(s)
- Joseph R Berger
- Department of Neurology, University of Kentucky College of Medicine, Lexington, Kentucky 40536-0284, USA.
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20
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Cox D, Brennan M, Moran N. Integrins as therapeutic targets: lessons and opportunities. Nat Rev Drug Discov 2010; 9:804-20. [PMID: 20885411 DOI: 10.1038/nrd3266] [Citation(s) in RCA: 358] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The integrins are a large family of cell adhesion molecules that are essential for the regulation of cell growth and function. The identification of key roles for integrins in a diverse range of diseases, including cancer, infection, thrombosis and autoimmune disorders, has revealed their substantial potential as therapeutic targets. However, so far, pharmacological inhibitors for only three integrins have received marketing approval. This article discusses the structure and function of integrins, their roles in disease and the chequered history of the approved integrin antagonists. Recent advances in the understanding of integrin function, ligand interaction and signalling pathways suggest novel strategies for inhibiting integrin function that could help harness their full potential as therapeutic targets.
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Affiliation(s)
- Dermot Cox
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, 123 St Stephens Green, Dublin 2, Ireland.
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Turgeon NA, Avila JG, Cano JA, Hutchinson JJ, Badell IR, Page AJ, Adams AB, Sears MH, Bowen PH, Kirk AD, Pearson TC, Larsen CP. Experience with a novel efalizumab-based immunosuppressive regimen to facilitate single donor islet cell transplantation. Am J Transplant 2010; 10:2082-91. [PMID: 20883542 PMCID: PMC3335736 DOI: 10.1111/j.1600-6143.2010.03212.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Islet transplantation is an experimental therapy for selected patients with type 1 diabetes (T1DM). It remains limited by immunosuppressive drug toxicity, progressive loss of insulin independence, allosensitization and the need for multiple islet donors. We describe our experience with an efalizumab-based immunosuppressive regimen as compared to the prevailing standard regimen, the Edmonton protocol. Twelve patients with T1DM received islet transplants: eight were treated with the Edmonton protocol; four were treated with daclizumab induction, a 6-month course of tacrolimus, and maintenance with efalizumab and mycophenolate mofetil. The primary endpoint was insulin independence after one islet infusion. Only two Edmonton protocol treated patients achieved the primary endpoint; six required islets from multiple donors, and all experienced leukopenia, mouth ulcers, anemia, diarrhea and hypertransaminasemia. Four became allosensitized. All patients treated with the efalizumab-based regimen achieved insulin independence with normal hemoglobin A1c after a single islet cell infusion and remained insulin independent while on efalizumab. These patients experienced significantly fewer side effects and none became allosensitized. Trial continuation was terminated by withdrawal of efalizumab from the market. These data suggest that this efalizumab-based regimen prevents islet rejection, is well tolerated, and allows for single donor islet transplantation.
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Affiliation(s)
- N A Turgeon
- Emory Transplant Center, Department of Surgery, Emory University, Atlanta, GA, USA.
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Langley RG, Papp K, Bissonnette R, Toth D, Matheson R, Hultquist M, White B. Safety profile of intravenous and subcutaneous siplizumab, an anti-CD2 monoclonal antibody, for the treatment of plaque psoriasis: results of two randomized, double-blind, placebo-controlled studies. Int J Dermatol 2010; 49:818-28. [DOI: 10.1111/j.1365-4632.2010.04512.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Evolución clínica de los pacientes psoriásicos tratados con efalizumab al suspender el fármaco. ACTAS DERMO-SIFILIOGRAFICAS 2010. [DOI: 10.1016/j.ad.2009.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Prignano F, Pescitelli L, Ricceri F, Lotti T. Retrospective analysis of systemic treatments for psoriasis patients attending a Psocare center in Florence. Relevance of biological drugs use and comorbidities. J Eur Acad Dermatol Venereol 2010; 24:555-60. [DOI: 10.1111/j.1468-3083.2009.03464.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ferrándiz C, Carrascosa JM, Boada A. A new era in the management of psoriasis? The biologics: facts and controversies. Clin Dermatol 2010; 28:81-7. [PMID: 20082956 DOI: 10.1016/j.clindermatol.2009.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
During the last 30 years, the tremendous progress in our knowledge of the pathogenesis of psoriasis has led to the development of new agents, the so-called biologics, that have revolutionized the management of severe psoriasis. Dermatologists and patients see this emerging therapy as a new perspective in the state of the art in managing moderate to severe psoriasis. After a few years of use in daily practice, we may begin to analyze the power of the currently available biologic agents in the management of severe psoriasis from the perspective of facts.
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Affiliation(s)
- Carlos Ferrándiz
- Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet s/n, 08916-Badalona, Spain.
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Abstract
A 49-year-old female was started on efalizumab for severe psoriasis. Three weeks later, she developed rapidly progressive inflammatory polyarthritis associated with high titers of both rheumatoid factor (RF) and anticyclic citrullinated peptide (anti-CCP) antibody. To our knowledge, this is the first reported case of efalizumab-induced anti-CCP-positive rheumatoid arthritis (RA). The polyarticular form of psoriatic arthritis (PsA) is associated with HLA-DR4, an antigen also associated with RA, and the presence of shared epitope alleles in PsA patients correlates with erosive disease, indicating a possible common mechanism of disease. CD4 T-cells play a prominent role in the pathogenesis of RA and PsA. Efalizumab theoretically modulates that role, appearing clinically to precipitate arthritis in a subset of PsA patients. On April 8, 2009, the makers of efalizumab announced a phased voluntary withdrawal of the drug from the US market because of progressive multifocal leukoencephalopathy cases. Further research using animal models of inflammatory polyarthritis is needed to determine the exact relationship between efalizumab and inflammatory arthritis, as well as to further explore the apparent connection between the inflammatory polyarticular form of PsA and RA.
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27
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Efectos adversos observados durante la terapia biológica en la psoriasis. Resultados de una encuesta al Grupo Español de Psoriasis. ACTAS DERMO-SIFILIOGRAFICAS 2010. [DOI: 10.1016/j.ad.2009.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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28
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Sánchez-Regaña M, Dilmé E, Puig L, Bordas X, Carrascos J, Ferran M, Herranz P, García-Bustinduy M, López Estebaranz J, Alsina M, Rodríguez M, Ribera M, Fernández-López E, Moreno J, Belinchón Romero I, Vidal D. Adverse Reactions During Biological Therapy for Psoriasis: Results of a Survey of the Spanish Psoriasis Group. ACTAS DERMO-SIFILIOGRAFICAS 2010. [DOI: 10.1016/s1578-2190(10)70602-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Lotti T, Chimenti S, Katsambas A, Ortonne JP, Dubertret L, Licu D, Simon J. Efficacy and Safety of Efalizumab in Patients with Moderate-to-Severe Plaque Psoriasis Resistant to Previous Anti-Psoriatic Treatment: Results of a Multicentre, Open-label, Phase IIIb/IV Trial. ACTA ACUST UNITED AC 2010; 3:9-18. [PMID: 20428228 PMCID: PMC2855833 DOI: 10.1111/j.1753-5174.2009.00026.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES: To evaluate the efficacy and safety of efalizumab in continuous or interrupted therapy of adults with moderate-to-severe plaque psoriasis who had failed to respond to or were intolerant of other systemic therapies, including methotrexate, ciclosporin and psoralen plus UVA phototherapy, or for whom such therapies were contraindicated. METHODS: Patients received a conditioning dose of efalizumab 0.7 mg/kg followed by once-weekly open-label efalizumab 1.0 mg/kg for 11 weeks. Responders (Physician Global Assessment [PGA] score of "good" or better at Week 12) could continue efalizumab for a further 8 weeks (continuous-treatment period). Nonresponders transitioned to alternative anti-psoriasis medication or stopped treatment. Responders who discontinued efalizumab could restart treatment if symptoms worsened. PGA response was evaluated at Weeks 12 (primary endpoint) and 20, as were the proportions of patients achieving an improvement from baseline of >/=50%, >/=75% and >/=90% in Psoriasis Area and Severity Index (PASI) (PASI 50, PASI 75 and PASI 90, respectively). RESULTS: A total of 1,255 patients were included in the intention-to-treat population. At Week 12, 68.0% of patients had a PGA rating of "good" or better. Of 688 patients who entered the continuous-treatment period, 79.5% had a PGA rating of "good" or better at Week 20. At Week 12, median improvement in PASI score was 68.4%. PASI 50/75/90 was achieved by 65.5%/35.9%/13.0% of patients at Week 12, and by 78.2%/52.9%/24.3% of responders at Week 20. Of the 127 responders at Week 12 who discontinued efalizumab, 11% experienced rebound and 56.7% relapsed within 8 weeks after stopping therapy. Efalizumab was well tolerated during the study. CONCLUSIONS: Efalizumab provided effective control of psoriasis in the majority of patients during the initial treatment period. The high response rates were maintained in initial responders when treatment was continued beyond 12 weeks.
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Affiliation(s)
- Torello Lotti
- Department of Dermatology, University of FlorenceFlorence, Italy
| | - Sergio Chimenti
- Department of Dermatology, University of Rome “Tor Vergata”Rome, Italy
| | - Andreas Katsambas
- Department of Dermatology, Andreas Sygros Hospital, University of AthensAthens, Greece
| | | | | | | | - Jan Simon
- Department of Dermatology, Venerology and Allergy, University Hospital of LeipzigLeipzig, Germany
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MacKenzie P, Kamili QUA, Menter A, Cooper B. Lymphoma and Immunosuppression: A Report of a Case Associated With Efalizumab Therapy. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2010; 10:E14-6. [DOI: 10.3816/clml.2010.n.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Baniandrés O, Pulido A, Silvente C, Suárez R, Lázaro P. Clinical Outcomes in Patients With Psoriasis Following Discontinuation of Efalizumab Due to Suspension of Marketing Authorization. ACTAS DERMO-SIFILIOGRAFICAS 2010. [DOI: 10.1016/s1578-2190(10)70665-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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32
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Duong TA, Buffard V, André C, Ortonne N, Revuz J, Bagot M, Roujeau JC. Efalizumab-induced bullous pemphigoid. J Am Acad Dermatol 2010; 62:161-162. [DOI: 10.1016/j.jaad.2009.02.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 02/11/2009] [Accepted: 02/15/2009] [Indexed: 10/20/2022]
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Alwawi EA, Krulig E, Gordon KB. Long-term efficacy of biologics in the treatment of psoriasis: what do we really know? Dermatol Ther 2009; 22:431-40. [PMID: 19845720 DOI: 10.1111/j.1529-8019.2009.01259.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Psoriasis is a chronic inflammatory condition that often requires life-long treatment. Conventional therapies have not fully met the needs of psoriatic patients, because of limited efficacy, adverse effects with cumulative use, and patient inconvenience. In the past decade, biologic immunotherapies have become accepted treatments for psoriasis as a result of perceived efficacy and safety on the part of patients and practitioners. However, most data on these medications come from relatively limited short-term trials. In this review, we will focus on the available long-term data on the efficacy of the biologic agents. We will emphasize the strengths and weakness of the available data of the biologic agents that are Food and Drug Administration (FDA)-approved for the treatment of moderate to severe psoriasis (alefacept, efalizumab,* etanercept, infliximab, and adalimumab), with the inclusion of a newer agent currently under FDA evaluation (ustekinumab).
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Affiliation(s)
- Eihab A Alwawi
- NorthShore University HealthSystem, Feinberg School of Medicine, Stokie, Illinois 60077, USA
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Stengel FM, Petri V, Campbell GA, Dorantes GL, López M, Galimberti RL, Valdez RP, de Arruda LF, Guerra MA, Chouela EN, Licu D. Control of Moderate-to-Severe Plaque Psoriasis with Efalizumab: 24-Week, Open-Label, Phase IIIb/IV Latin American Study Results. ACTA ACUST UNITED AC 2009; 2:71-78. [PMID: 20098510 PMCID: PMC2805872 DOI: 10.1111/j.1753-5174.2009.00024.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Introduction Psoriasis is a debilitating, chronic inflammatory systemic disease affecting around 2% of the South American population. Biological therapies offer the possibility of long-term therapy with improved safety and efficacy. Methods We conducted a multicentre, open-label, single-arm, Phase IIIb/IV study of adult patients (18–75 years) with moderate-to-severe plaque psoriasis who were candidates for systemic therapy or phototherapy. Patients received efalizumab subcutaneously (1.0 mg/kg/wk). The primary endpoint was the proportion of patients achieving a Physician Global Assessment (PGA) rating of “excellent” or “cleared” at Week 24. Safety outcomes were adverse events (AEs), serious AEs (SAEs) and abnormalities on laboratory tests. Results Of 189 patients included in the intent-to-treat and safety populations, 104 (55.0%) were of Hispanic or Latino ethnicity. At Week 24, 92/189 (48.7%) patients achieved or maintained a PGA rating of “excellent” or “cleared”. AEs were reported by 161/189 (85.2%) patients, SAEs by 21/189 (11.1%). One patient died during the study (meningoencephalitis). Laboratory findings were consistent with previous experience. Conclusions Efalizumab demonstrated sustained control of psoriasis up to 24 weeks in patients from Latin America, confirming results seen in Phase III studies conducted in North America and Europe.
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Foley P, Freeman M, Gebauer K, Murrell D, Shumack S, Tyson C, Varigos G. Long-term efalizumab therapy for patients with moderate-to-severe, chronic plaque psoriasis: results from an Australian expanded access program. Int J Dermatol 2009; 48:1376-84. [PMID: 19930495 DOI: 10.1111/j.1365-4632.2009.04217.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Psoriasis is a chronic skin disease that can impact heavily on a patient's well-being. Efalizumab, a unique, targeted, biological therapy, has demonstrated efficacy in treating moderate-to-severe, chronic plaque psoriasis with <or=36 months of continuous therapy. The objective of this Extended Access Program (EAP) was to evaluate further the benefit of efalizumab as long-term therapy in a real-world clinical setting. METHODS After an initial conditioning dose of efalizumab (0.7 mg/kg subcutaneously), a weekly dose of efalizumab (1.0 mg/kg) was administered for <or=21 months. Patients with reduced Psoriasis Area and Severity Index (PASI) scores (>or=50%, or a score <or=8) at month 3 entered the long-term maintenance treatment period. RESULTS In total, 101 patients (>18 years) with severe plaque psoriasis enrolled on the EAP, of these 93 (92.1%) met all the inclusion criteria. After 3 months of treatment, 84/101 (83.2%) patients had evaluable data and entered the maintenance period. After 3 months, 57/84 (67.9%) patients had achieved PASI-50. Using an intent-to-treat analysis, after 21 months of treatment, PASI-75 and PASI-50 were achieved by 43/101 (42.6%) and 69/101 (68.3%) of patients, respectively. Efalizumab was generally well tolerated during the 21 months of continuous therapy. CONCLUSION Efalizumab, 1.0 mg/kg/week, is effective and well tolerated in a 'real world' clinical setting, providing enduring reduction of psoriasis symptoms for up to 21 months.
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Affiliation(s)
- Peter Foley
- Department of Medicine (Dermatology), The University of Melbourne, St Vincent's Hospital Melbourne, Fitzroy, Victoria, Australia.
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36
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Prignano F, Ricceri F, Pescitelli L, Buggiani G, Troiano M, Zanieri F, Rossari S, Lotti T. Comparison of body weight and clinical-parameter changes following the treatment of plaque psoriasis with biological therapies. Curr Med Res Opin 2009; 25:2311-6. [PMID: 19635043 DOI: 10.1185/03007990903162465] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE This study is a retrospective analysis evaluating the presence of comorbidities, as well as the changes in body weight and clinical parameters in psoriasis patients following treatment with anti-TNF-alpha agents and with the anti-CD11a agent efalizumab. RESEARCH DESIGN AND METHODS A total of 268 patients affected by chronic plaque psoriasis, and receiving systemic monotherapy with efalizumab, etanercept, or infliximab, were included. The follow-up period was 2, 4 and 6 months. MAIN OUTCOME MEASURES Clinical data including age, gender, weight, type and severity of psoriasis and age of onset were collected. Severity of psoriasis was assessed according to the Psoriasis Area and Severity Index (PASI) and body surface area (BSA). RESULTS Hypertension and hyperlipidaemia were the comorbidities present with the higher frequency in our group of patients. PASI score was reduced by between 43.8 and 52% in all treatment groups. No relevant blood chemistry changes were observed following therapy, with the exception of a decrease in neutrophils and an increase in leukocyte numbers reported in the efalizumab and etanercept groups. Interestingly, after 6 months of therapy, the weight of the patients remained unvaried in those taking efalizumab (-0.05%) but was moderately increased in the etanercept (+0.72%) and in infliximab groups (+0.3%). CONCLUSIONS The present study shows that there were clinically significant differences in weight gain effects between efalizumab and anti-TNF-alpha agents in psoriatic patients. The changes in body weight gain increase did not reach statistical significance, although there is a trend towards this, and this may be due to the relatively small number of patient studied.
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Affiliation(s)
- F Prignano
- Department of Dermatological Sciences, Physiotherapy Unit, Firenze, Italy.
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Bissonnette R, Ho V, Langley RG. Safety of Conventional Systemic Agents and Biologic Agents in the Treatment of Psoriasis. J Cutan Med Surg 2009; 13 Suppl 2:S67-76. [DOI: 10.2310/7750.2009.00023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
For many years, the mainstays of psoriasis therapy were conventional oral immunosuppressants (eg, cyclosporine and methotrexate) and retinoids. Recently, six biologic agents were approved for the treatment of psoriasis in Canada and the United States: alefacept, efalizumab, etanercept, infliximab, adalimumab, and ustekinumab. Biologic agents exert their therapeutic effect in psoriasis through inhibition of various pathways. Although these treatments are new to the management of psoriasis, many have been used in other disease states, such as rheumatoid arthritis, psoriatic arthritis, and Crohn's disease. Long-term safety data are available from the treatment of these diseases. Both conventional and biologic treatments are effective in the treatment of psoriasis, but they are associated with serious adverse events, ranging from organ toxicity to serious infections, birth defects, and malignancies. This article reviews the safety profiles of both classes of treatments.
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Affiliation(s)
| | - Vincent Ho
- Department of Dermatology, University of British Columbia, Vancouver, BC
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38
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Abstract
Efalizumab is a recombinant, humanized IgG1 monoclonal antibody used in the treatment of plaque psoriasis. Efalizumab specifically targets T cells, leading to the subsequent inhibition of T-cell activation. The recent cases (three confirmed and one unconfirmed but suspected case) of the demyelinating disease progressive multifocal leukoencephalopathy (PML) have resulted in efalizumab being pulled from the market by European and Canadian regulatory agencies. Furthermore, manufacturer Genentech, Inc. has voluntarily withdrawn efalizumab from the United States market as of April 2009. In light of these events, this report is a practical guide to transitioning patients from efalizumab to alternative psoriasis therapies. The major consideration is the possibility for efalizumab-associated rebound of psoriasis. According to limited available literature and in the experience of the authors, the most effective agent for minimizing or preventing rebound is cyclosporine at the maximum dermatologic dose of 5 mg/kg per day.
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Affiliation(s)
- Rupa Pugashetti
- Department of Dermatology, University of California, San Francisco, CA 94118, USA
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39
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O’Neill JL, Kalb RE. Ustekinumab in the therapy of chronic plaque psoriasis. Biologics 2009; 3:159-68. [PMID: 19707405 PMCID: PMC2726055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Psoriasis is a chronic inflammatory disorder characterized by T cell dysregulation and a chronic inflammatory infiltrate within the epidermis. Several cytokines play an important role in the pathogenesis of psoriasis, including interleukin-12 (IL-12) and IL-23. These cytokines act via induction of pro-inflammatory cytokines which promote chronic inflammation and auto-reactivity. Ustekinumab is a fully human monoclonal antibody against the common p40 subunit of IL-12 and IL-23. Two randomized, double-blind, placebo-controlled trials of ustekinumab have demonstrated significant and prolonged efficacy in the treatment of plaque psoriasis. Adverse events were generally similar across treatment and control groups. Studies are ongoing to assess the long term safety and efficacy profiles of ustekinumab.
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Affiliation(s)
- Jenna L O’Neill
- State University of New York, at Buffalo, School of Medicine and Biomedical Sciences, Department of Dermatology, NY, USA
| | - Robert E Kalb
- State University of New York, at Buffalo, School of Medicine and Biomedical Sciences, Department of Dermatology, NY, USA
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40
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Puig L, Carrascosa J, Daudén E, Sánchez-Carazo J, Ferrándiz C, Sánchez-Regaña M, García-Bustinduy M, Bordas X, Moreno J, Hernanz J, Laguarda S, García-Patos V. Directrices españolas basadas en la evidencia para el tratamiento de la psoriasis moderada a grave con agentes biológicos. ACTAS DERMO-SIFILIOGRAFICAS 2009. [DOI: 10.1016/s0001-7310(09)71257-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Abstract
SUMMARY As the recognition that costimulatory signals are critical for optimal T-cell activation, proliferation, and differentiation, there has been an explosion in the study of costimulatory molecules and their roles in enhancing anti-donor T-cell responses following transplantation. Here, we focus on the bench-to-beside translation of blocking agents designed to target three critical costimulatory pathways: the CD28/CD80/CD86 pathway, the CD154/CD40 pathway, and the lymphocyte function associated antigen-1/intercellular adhesion molecule pathway. While blockade of each of these pathways proved promising in inhibiting donor-reactive T-cell responses and promoting long-term graft survival in murine models of transplantation, the progression of development of therapeutic agents to block these pathways has each taken a slightly different course. Both logistical and biological pitfalls have accompanied the translation of blockers of all three pathways into clinically applicable therapies, and the development of costimulatory blockade as a substitute for current standard-of-care calcineurin inhibitors has by no means reached completion. Collaboration between both the basic and clinical arenas will further propel the development of costimulation blockers currently in the pipeline, as well as of novel methods to target these critical pathways during transplantation.
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Affiliation(s)
- Mandy L Ford
- Department of Surgery, Emory Transplant Center, Emory University, Atlanta, GA 30322, USA
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42
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Alexandroff A, Burd R. Footprints of the EADV: a meeting report from the 17th Congress of the European Academy of Dermatology and Venereology. Br J Dermatol 2009; 160:938-45. [DOI: 10.1111/j.1365-2133.2009.09107.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Prignano F, Buggiani G, Lotti T. Efalizumab in the treatment of psoriasis: when comorbidity is an issue. Dermatol Ther 2009; 21 Suppl 2:S25-9. [PMID: 18837730 DOI: 10.1111/j.1529-8019.2008.00229.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Psoriasis is a common dermatosis affecting the skin, mucosal surfaces, and cutaneous adnexa, and joints and bones can be involved at some degree in the clinical features of the disease, configuring psoriatic arthritis. Moderate to severe psoriasis has a high impact on quality of life and requires an integrated and long-term treatment schedule. However, management of psoriasis in patients affected by other systemic diseases can be challenging because of the possible side effects or contraindications of various treatments in accordance with patients' medical history. In recent times, the therapeutical approaches have changed a lot, thanks to biologicals. The current authors present some cases of psoriatic patients with comorbidities successfully treated with efalizumab, an anti-T lymphocyte biological.
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Affiliation(s)
- Francesca Prignano
- Department of Dermatological Sciences, Florence University, Florence, Italy.
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Balato N, Gallo L, Balato A, La Bella S, Ayala F. Acrodermatitis continua of Hallopeau responding to efalizumab therapy. J Eur Acad Dermatol Venereol 2009; 23:1329-30. [PMID: 19250321 DOI: 10.1111/j.1468-3083.2009.03156.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Spanish Evidence-Based Guidelines on the Treatment of Moderate to Severe Psoriasis with Biologic Agents. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/s1578-2190(09)70086-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Abstract
Chronic dermatologic diseases affect millions of people. The long-term nature of these diseases creates psychological and financial burden as well as substantially impacts patients' quality of life. Biologics, including adalimumab, etanercept, alefacept, efalizumab, and infliximab, are the newest therapeutic agents in the treatment of moderate-to-severe psoriasis and psoriatic arthritis and have been used in a variety of other dermatologic diseases. These agents act relatively quickly and effectively in 12-week clinical trials. Because these agents are used to treat patients for longer than 12 weeks, there is a need to review the safety and efficacy of these agents over longer periods of time. Many levels of evidence are available for biologics including high level of evidence from large, randomized, double-blind, placebo-controlled clinical studies. This review focuses on the available data for efficacy and safety for greater than 24 weeks of therapy. The studies supporting the use of rituximab and intravenous immunoglobulin in autoimmune blistering diseases are also presented in this review.
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Affiliation(s)
- Leslie Castelo-Soccio
- Department of Dermatology, University of Pennsylvania, 3600 Spruce Street, Philadelphia, PA 19104, USA
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47
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48
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Résultats des essais cliniques 2243 sur 3 ans et CONTROL II avec efalizumab. Ann Dermatol Venereol 2008. [DOI: 10.1016/s0151-9638(08)75482-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Toth DP, Papp K, Gratton D. Long-term efficacy of up to 15 months’ efalizumab therapy in patients with moderate-to-severe chronic plaque psoriasis. Dermatol Ther 2008; 21 Suppl 3:S6-14. [DOI: 10.1111/j.1529-8019.2008.00235.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Weitz-Schmidt G, Chreng S, Riek S. Allosteric LFA-1 inhibitors modulate natural killer cell function. Mol Pharmacol 2008; 75:355-62. [PMID: 18955586 DOI: 10.1124/mol.108.051169] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Natural killer (NK) cells are believed to play an important role in a variety of disease pathologies, including transplant rejection and autoimmunity. None of the therapeutic modalities currently available are known to potently interfere with NK cell activity. Here we demonstrate for the first time that low molecular weight inhibitors of the integrin lymphocyte function-associated antigen-1 (LFA-1) readily block NK cell adhesion, activation, and NK cell-mediated cytolysis in vitro, in contrast to other immunosuppressive agents. These effects were independent of the type of allosteric mechanism by which LFA-1 inhibition was achieved. In addition, we describe a simple, nonradioactive whole-blood assay that should be suitable to monitor NK cell activation in clinical practice. Taken together, our study underlines the importance of LFA-1 in NK cell effector functions and indicates that allosteric LFA-1 inhibitors may become important tools to further elucidate the therapeutic potential of NK cell modulation in immunological diseases.
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Affiliation(s)
- Gabriele Weitz-Schmidt
- Department of Autoimmunity, Novartis Institutes for BioMedical Research, Basel, Switzerland.
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