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Busse PJ, Farkas H, Banerji A, Lumry WR, Longhurst HJ, Sexton DJ, Riedl MA. Lanadelumab for the Prophylactic Treatment of Hereditary Angioedema with C1 Inhibitor Deficiency: A Review of Preclinical and Phase I Studies. BioDrugs 2019; 33:33-43. [PMID: 30539362 PMCID: PMC6373397 DOI: 10.1007/s40259-018-0325-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Hereditary angioedema (HAE) with C1 esterase inhibitor (C1-INH) deficiency (C1-INH-HAE) is a rare disease characterized by diminished levels or dysfunctional activity of C1-INH, leading to dysregulated plasma kallikrein activity within the kallikrein-kinin pathway. Symptoms manifest as painful, potentially life-threatening swelling of subcutaneous tissues throughout the body and/or submucosal edema in the upper airway or gastrointestinal tract. Attacks recur with unpredictable frequency, intensity, and duration, placing a heavy burden on patients' daily lives. Despite improved availability of medications for on-demand treatment during attacks and prophylaxis of future attacks, unmet needs remain. Lanadelumab, a fully human monoclonal antibody, may help address some of the limitations of existing prophylactic options (e.g., the need for intravenous administration or frequent dosing). Preclinical studies demonstrate that it is highly potent and specifically inhibits plasma kallikrein, and findings from phase Ia and Ib studies suggest this agent is well tolerated and provides sustained inhibition of plasma kallikrein, allowing for less frequent dosing. The phase III HELP Study (NCT02586805) evaluating the efficacy and safety of lanadelumab in preventing HAE attacks has been completed, and its open-label extension (NCT02741596) is ongoing. Lanadelumab is now approved in the USA and Canada for prophylaxis to prevent attacks of HAE in patients aged ≥ 12 years. This review provides an overview of the discovery and clinical development of lanadelumab, from preclinical through phase Ib studies, characterizing its safety/tolerability, efficacy, and pharmacokinetic and pharmacodynamic profiles. It also highlights how this agent may positively impact clinical care of patients with C1-INH-HAE.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Angioedemas, Hereditary/drug therapy
- Angioedemas, Hereditary/pathology
- Angioedemas, Hereditary/physiopathology
- Angioedemas, Hereditary/prevention & control
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Monoclonal, Humanized/therapeutic use
- Clinical Trials, Phase I as Topic
- Drug Evaluation, Preclinical
- Humans
- Middle Aged
- Plasma Kallikrein/antagonists & inhibitors
- Plasma Kallikrein/drug effects
- Young Adult
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Affiliation(s)
- Paula J Busse
- Division of Clinical Immunology and Allergy, Department of Medicine, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, Room 11-20, New York, NY, 10029, USA.
| | - Henriette Farkas
- Hungarian Angioedema Reference Center, 3rd Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, 1125, Hungary
| | - Aleena Banerji
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Cox 201, Boston, MA, 02114, USA
| | - William R Lumry
- Allergy and Asthma Research Associates, 10100 N. Central Expressway, Suite 100, Dallas, TX, 75231, USA
| | - Hilary J Longhurst
- Department of Immunology, Addenbrookes Hospital Cambridge University NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | | | - Marc A Riedl
- Division of Rheumatology, Allergy and Immunology, University of California, San Diego, 8899 University Center Lane, Suite 230, San Diego, CA, 92122, USA
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Granero-Molina J, Sánchez-Hernández F, Fernández-Sola C, Jiménez-Lasserrotte MDM, Antequera-Raynal LH, Hernández-Padilla JM. The Diagnosis of Hereditary Angioedema: Family Caregivers' Experiences. Clin Nurs Res 2018; 29:117-126. [PMID: 29862835 DOI: 10.1177/1054773818780102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The aim of this study was to understand the experiences of family caregivers in the process of diagnosing hereditary angioedema. An interpretive and qualitative research methodology based on Gadamer's philosophical hermeneutics was carried out. Data collection took place between May 2015 and August 2016 and included a focus group and in-depth interviews with 16 family caregivers. Two themes define the experiences of family caregivers: "Family life focuses on identifying the problem" and "Discovering and coping with a complex diagnosis." The process of diagnosis generates fear, anxiety, uncertainty, and incomprehension. Family caregivers are the main support for patients diagnosed with hereditary angioedema. As they share in the patients' suffering, they need a diagnosis to be established to be able to cope with the disease and offer support. Family health nurses can contribute to improving the coping process in this phase of the disease.
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Longhurst H, Bygum A. The Humanistic, Societal, and Pharmaco-economic Burden of Angioedema. Clin Rev Allergy Immunol 2017; 51:230-9. [PMID: 27388236 DOI: 10.1007/s12016-016-8575-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hereditary angioedema due to C1 inhibitor deficiency (C1-INH-HAE) is a rare disorder characterized by intermittent and unpredictable episodes of swelling which cause disfigurement, disability, pain, or, in case of laryngeal swelling, risk of death. Historical factors, including the intermittent nature of the disorder, the lack of awareness of this ultra-rare condition amongst medical personnel, lack of specialist centers, and limited treatment options have contributed to under-diagnosis and under-treatment of the condition. Incorrect treatment of attacks has been common, even when medical help is sought. This has lead to reduced health-seeking behavior and alternative coping strategies, sometimes even denial, in many families, while a minority of HAE-affected patients have become serial emergency room attenders with chronic pain and ongoing requirement for opiate-based painkillers. Both strategies have incurred not only physical but also psychological and economic consequences.In the last 10 years, new and effective acute therapies have been made available, some of which have also provided short-term and long-term prophylaxis options, together with a better understanding of older prophylactic drugs. Improved awareness of HAE amongst the general public, family members, and physicians has reduced the long delay in diagnosis and increased the number of patients receiving effective and up-to-date therapies to improve the physical impact of the disorder.Data on the impact of treatment on the psychological outcomes is scarce, but the limited information available suggests that access to specialist advice and treatment leads to psychological as well as physical improvement.HAE also has profound effects on individual and family economic output, directly via absenteeism from school or work and indirectly via lost opportunities. Economic improvements associated with better treatments are offset by the high cost of new acute treatments, resulting in difficult pharmaco-economic calculations. Worldwide, cost considerations present potentially insurmountable barriers to treatment for many patients, depending on the healthcare system in the individual country.
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Affiliation(s)
- Hilary Longhurst
- Department of Immunology, Barts Health NHS Trust London, London, E1 2ES, UK.
| | - Anette Bygum
- HAE Centre Denmark, Department of Dermatology and Allergy Centre, Odense University Hospital, 5000, Odense C, Denmark
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Psarros F, Koutsostathis N, Farmaki E, Speletas MG, Germenis AE. Hereditary Angioedema in Greece: The First Results of the Greek Hereditary Angioedema Registry. Int Arch Allergy Immunol 2014; 164:326-32. [DOI: 10.1159/000366276] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 08/01/2014] [Indexed: 11/19/2022] Open
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