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Kate A, Shanbhag SS, Gattu J, Basu S. Allergen Testing: A Review of the Indications, Procedures, and Limitations in Ocular Allergy. Clin Rev Allergy Immunol 2024:10.1007/s12016-024-09002-5. [PMID: 39276294 DOI: 10.1007/s12016-024-09002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2024] [Indexed: 09/16/2024]
Abstract
Allergen-based diagnostics are essential in the management algorithm of allergic diseases. Unlike systemic allergy, where the indications and interpretation of these diagnostic modalities are well established, their utility in ocular allergy is not well-defined. With the rising prevalence of ocular allergies and the need for personalized treatment strategies, there is a growing demand for precision allergen diagnostics. This review describes the commonly used tests with their indications, procedures, and limitations. A review of the literature was carried out on articles on allergen diagnostics in ocular allergy, and after excluding articles that were not relevant, 82 papers were included in the current review. IgE-mediated pathways contribute significantly to seasonal and perennial ocular allergy and partly to vernal keratoconjunctivitis. Most diagnostic techniques aim to detect IgE sensitization. In vivo tests include skin prick (SPT), intradermal, and patch tests. SPT is considered the gold standard and directly evaluates the presence of allergen-specific IgE in the skin. In vitro tests measure total and specific IgE from either tears or sera. Tear IgE measurement is relatively specific for allergic conjunctivitis and can provide insight into the potential allergens responsible for local sensitization. The conjunctival provocation test can help establish true allergy, especially in patients with polysensitization. This review also provides an overview of evidence in literature segregated based on the test employed. This includes 17 studies on only SPT; 42 studies on IgE measured in serum, tears, or both; and 20 studies which have evaluated both SPT and IgE. The pattern of allergen sensitization can guide recommendations for avoidance measures and immunotherapy. Thus, this could create a corticosteroid-sparing therapy avenue in these patients, reducing disease severity and resulting visual morbidity.
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Affiliation(s)
- Anahita Kate
- Shantilal Shanghvi Cornea Institute, L V Prasad Eye Institute, Vijayawada, Andhra Pradesh, India.
| | - Swapna S Shanbhag
- Shantilal Shanghvi Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Jyothirmai Gattu
- Academy for Eye Care Education, LV Prasad Eye Institute, Hyderabad, India
- Anant Bajaj Retina Institute, L V Prasad Eye Institute, Vijayawada, Andhra Pradesh, India
| | - Sayan Basu
- Shantilal Shanghvi Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
- Centre for Ocular Regeneration (CORE), L V Prasad Eye Institute, Hyderabad, Telangana, India
- Brien Holden Eye Research Centre (BHERC), L V Prasad Eye Institute, Hyderabad, Telangana, India
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Klimek L, Brehler R, Mösges R, Demoly P, Mullol J, Wang DY, O'Hehir RE, Didier A, Kopp M, Bos C, Karagiannis E. Update about Oralair® as a treatment for grass pollen allergic rhinitis. Hum Vaccin Immunother 2022; 18:2066424. [PMID: 35704772 PMCID: PMC9302518 DOI: 10.1080/21645515.2022.2066424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sublingual immunotherapy (SLIT) is a well-tolerated, safe, and effective approach to treating allergic rhinitis (AR). Oralair® is a five-grass pollen SLIT tablet containing natural pollen allergens from five of the major grass species responsible for seasonal AR due to grass pollen allergy. Recommended use is in a pre-coseasonal regimen, starting daily treatment approximately 4 months before the start of the pollen season, with treatment then continued daily throughout the season; treatment should continue for 3–5 y. Clinical efficacy and safety of Oralair® in patients with grass pollen-induced AR has been demonstrated in a comprehensive clinical development program of randomized controlled trials. Effectiveness has been substantiated in subsequent observational studies with sustained efficacy following treatment cessation and a favorable level of adherence, quality of life, benefit, and satisfaction for the patients. Supportive evidence for a benefit in reducing the risk or delaying the development of allergic asthma is emerging.
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Affiliation(s)
- L Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany
| | - R Brehler
- Department of Skin Diseases, Outpatient Clinic for Allergology, Occupational Dermatology and Environmental Medicine, Münster University Hospital, Münster, Germany
| | - R Mösges
- Institute of Medical Statistics and Computational Biology (IMSB), Medical Faculty of the University of Cologne, Cologne, Germany.,CRI - Clinical Research International Ltd, Hamburg, Germany.,ClinCompetence Cologne GmbH, Cologne, Germany
| | - P Demoly
- Division of Allergy, Department of Pulmonology, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France.,Université, Equipe EPAR - IPLESPUMR-S 1136 INSERM-Sorbonne, Paris, France
| | - J Mullol
- Rhinology Unit & Smell Clinic, ENT Department, Hospital Clínic; Clinical & Experimental Respiratory Immunoallergy, IDIBAPS, CIBERES, University of Barcelona, Barcelona, Spain
| | - D Y Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - R E O'Hehir
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical School, Monash University, Melbourne, Australia
| | - A Didier
- Pôle des Voies Respiratoires, Hôpital Larrey, CHU de Toulouse and Centre de Physiopathologie Toulouse Purpan, INSERM U1043, CNRS UMR 5282, Université Toulouse III, Toulouse, France
| | - M Kopp
- Clinic of Pediatric and Adolescent Medicine, Airway Research Center North (ARCN), Member of the German Lung Center (DZL), Lübeck University, Lübeck, Germany
| | - C Bos
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
| | - E Karagiannis
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
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Paoletti G, Di Bona D, Chu DK, Firinu D, Heffler E, Agache I, Jutel M, Klimek L, Pfaar O, Mösges R, DunnGalvin A, Genuneit J, Hoffmann HJ, Canonica GW. Allergen immunotherapy: The growing role of observational and randomized trial "Real-World Evidence". Allergy 2021; 76:2663-2672. [PMID: 33583050 DOI: 10.1111/all.14773] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Although there is a considerable body of knowledge about allergen immunotherapy (AIT), there is a lack of data on the reliability of real-world evidence (RWE) in AIT, and consequently, a lack of information on how AIT effectively works in real life. METHODS To address the current unmet need for an appraisal of the quality of RWE in AIT, the European Academy of Allergy and Clinical Immunology Methodology Committee recently initiated a systematic review of observational studies of AIT, which will use the RELEVANT tool and the Grading of Recommendations Assessment, Development and Evaluation approach (GRADE) to rate the quality of the evidence base as a whole. The next step will be to develop a broadly applicable, pragmatic "real-world" database using systematic data collection. Based on the current RWE base, and perspectives and recommendations of authorities and scientific societies, a hierarchy of RWE in AIT is proposed, which places pragmatic trials and registry data at the positions of highest level of evidence. KEY RESULTS There is a need to establish more AIT registries that collect data in a cohesive way, using standardized protocols. CONCLUSIONS This will provide an essential source of real-world data that can be easily shared, promoting evidence-based research and quality improvement in study design and clinical decision-making.
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Affiliation(s)
- Giovanni Paoletti
- Personalized Medicine, Asthma and Allergy Humanitas Clinical and Research Center IRCCS and Department of Biomedical Sciences Humanitas University Milan Italy
| | - Danilo Di Bona
- Department of Emergency and Organ Transplantation School and Chair of Allergology and Clinical Immunology University of Bari – Aldo Moro Bari Italy
| | - Derek K. Chu
- Division of Immunology and Allergy Department of Health Research Methods, Evidence and Impact Department of Medicine McMaster University Hamilton ON Canada
- The Research Institute of St. Joe's Hamilton Hamilton ON Canada
| | - Davide Firinu
- Department of Clinical Sciences and Public Health University of Cagliari Cagliari Italy
| | - Enrico Heffler
- Personalized Medicine, Asthma and Allergy Humanitas Clinical and Research Center IRCCS and Department of Biomedical Sciences Humanitas University Milan Italy
| | - Ioana Agache
- Department of Allergy and Clinical Immunology Faculty of Medicine Transylvania University of Brasov Brasov Romania
| | - Marek Jutel
- Department of Clinical Immunology Wroclaw Medical University and “ALLMED”Medical Research Institute Wroclaw Poland
| | - Ludger Klimek
- Center for Rhinology and Allergology Wiesbaden Germany
| | - Oliver Pfaar
- Section of Rhinology and Allergy Department of Otorhinolaryngology, Head and Neck Surgery University Hospital MarburgPhilipps‐Universität Marburg Marburg Germany
| | - Ralph Mösges
- Faculty of Medicine Institute of Medical Statistics and Computational Biology (IMSB) University of Cologne and CRI – Clinical Research International Limited Cologne Germany
| | - Audrey DunnGalvin
- School of Applied Psychology and Department of Paediatrics & Child Health University College Cork Cork Ireland
| | - Jon Genuneit
- Institute of Epidemiology and Medical Biometry Ulm University Ulm Germany
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty Leipzig University Leipzig Germany
| | - Hans Jürgen Hoffmann
- Department of Clinical Medicine Aarhus University and Department of Respiratory Diseases and AllergyAarhus University Hospital Aarhus Denmark
| | - Giorgio Walter Canonica
- Personalized Medicine, Asthma and Allergy Humanitas Clinical and Research Center IRCCS and Department of Biomedical Sciences Humanitas University Milan Italy
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Larsen JM, Bang-Berthelsen CH, Qvortrup K, Sancho AI, Hansen AH, Andersen KIH, Thacker SSN, Eiwegger T, Upton J, Bøgh KL. Production of allergen-specific immunotherapeutic agents for the treatment of food allergy. Crit Rev Biotechnol 2020; 40:881-894. [PMID: 32515236 DOI: 10.1080/07388551.2020.1772194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Allergen-specific immunotherapy (IT) is emerging as a viable avenue for the treatment of food allergies. Clinical trials currently investigate raw or slightly processed foods as therapeutic agents, as trials using food-grade agents can be performed without the strict regulations to which conventional drugs are subjected. However, this limits the ability of standardization and may affect clinical trial outcomes and reproducibility. Herein, we provide an overview of methods used in the production of immunotherapeutic agents for the treatment of food allergies, including processed foods, allergen extracts, recombinant allergens, and synthetic peptides, as well as the physical and chemical processes for the reduction of protein allergenicity. Commercial interests currently favor producing standardized drug-grade allergen extracts for therapeutic use, and clinical trials are ongoing. In the near future, recombinant production could replace purification strategies since it allows the manufacturing of pure, native allergens or sequence-modified allergens with reduced allergenicity. A recurring issue within this field is the inadequate reporting of production procedures, quality control, product physicochemical characteristics, allergenicity, and immunological properties. This information is of vital importance in assessing therapeutic standardization and clinical safety profile, which are central parameters for the development of future therapeutic agents.
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Affiliation(s)
- Jeppe Madura Larsen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | | | - Katrine Qvortrup
- Department of Chemistry, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Ana Isabel Sancho
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | | | | | | | - Thomas Eiwegger
- Division of Immunology and Allergy, Food Allergy and Anaphylaxis Program, The Department of Pediatrics, The Hospital for Sick Children, Toronto, Canada.,Research Institute, The Hospital for Sick Children, Translational Medicine Program, Toronto, Canada.,Department of Immunology, The University of Toronto, Toronto, Canada
| | - Julia Upton
- Division of Immunology and Allergy, Food Allergy and Anaphylaxis Program, The Department of Pediatrics, The Hospital for Sick Children, Toronto, Canada
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Canonica GW, Devillier P, Casale T, Demoly P, Bos C, Karagiannis E, Passalacqua G, Wahn U, Mascarell L. Clinical efficacy of sublingual immunotherapy tablets for allergic rhinitis is unlikely to be derived from in vitro allergen-release data. Expert Rev Clin Immunol 2019; 15:921-928. [PMID: 31403823 DOI: 10.1080/1744666x.2019.1649597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Allergen bioavailability underpins the efficacy and safety of SLIT tablets. Three product-related factors are likely to influence this: tablet potency, formulation and sublingual holding time. Areas covered: Tablet formulation determines the rate and extent of solubilized allergen release. Using validated in vitro dissolution assays, the two licensed grass pollen SLIT tablets are shown to release ≥85% of their total allergenic activity within several minutes. Sublingual holding time affects the contact duration between solubilized allergens and sublingual tissue. Maximal uptake of allergens by sublingual tissue requires ~5 minutes, with little uptake occurring within the first minute. A higher potency tablet with longer sublingual holding time would provide higher bioavailability, while faster rates of allergen release in vitro are unlikely to translate to a greater increase in bioavailability. Differences in dissolution times cannot serve as a surrogate of in vivo bioavailability, and are not related to differences in efficacy at the marketed tablet dosages. Rapid in vitro dissolution is likely not a key requirement for inducing a potent immune response. Expert opinion: In vitro dissolution cannot predict the clinical efficacy of SLIT tablets but could be important in immune tolerance and safety. In addition, a discontinuous administration regimen may have benefits for adherence and cost without compromising efficacy.
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Affiliation(s)
- Giorgio Walter Canonica
- Department of Internal Medicine, Humanitas University and Research Hospital ICH , Milan , Italy
| | - Philippe Devillier
- UPRES EA220, Foch Hospital, University Versailles Saint-Quentin, University Paris-Saclay , Suresnes , France
| | - Thomas Casale
- Department of Internal Medicine, University of South Florida , Tampa , FL , USA
| | - Pascal Demoly
- Division of Allergy, Department of Pulmonology, University Hospital of Montpellier, Montpellier and INSERM UMRS 1136, Equipe - EPAR - IPLESP, Sorbonne Université, Hôpital Arnaud de Villeneuve , Paris , France
| | - Catherine Bos
- Department of Internal Medicine, Stallergenes Greer , Antony , France
| | | | - Giovanni Passalacqua
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa , Genoa , Italy
| | - Ulrich Wahn
- Department of Paediatric Pneumology and Immunology, Charité Medical University , Berlin , Germany
| | - Laurent Mascarell
- Department of Internal Medicine, Stallergenes Greer , Antony , France
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Batard T, Sanjuan A, Denis L, Nguyen H, Montagut A, Sastre J, Rak S, Cuiné JF. Two grass pollen tablets commercially available for allergy immunotherapy display different IgE epitope repertoires. Clin Transl Allergy 2019; 9:13. [PMID: 30858968 PMCID: PMC6391756 DOI: 10.1186/s13601-019-0253-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 02/08/2019] [Indexed: 12/31/2022] Open
Abstract
Background The distribution of Pooideae species varies across Europe. Especially, Timothy is less represented in Southern than in Northern Europe. Since allergenic cross-reactivity between pollens from different grasses is only partial, grass pollen-allergic patients are expected to display different sensitization profiles, with specific IgE directed against different combinations of allergenic epitopes, depending on their living places in Europe and the grasses they are exposed to. In this context, this study aimed at comparing two tablets commercially available for allergy immunotherapy, namely a 5-grass (Cocksfoot, Meadow-grass, Rye-grass, Sweet vernal-grass and Timothy) and a 1-grass (Timothy) pollen tablets, for their ability to represent the sensitization profiles of patients, depending on whether they live in Southern or Northern Europe. Methods Sera were collected from adult patients living in Spain (n = 19) and Sweden (n = 22). Tablets were compared for their ability to inhibit the binding of patient serum IgE to pollen allergens from twelve grasses commonly distributed throughout Europe, as determined by the areas under the curves obtained by ELISA-inhibition. Tablets were adjusted to an equivalent allergenic activity, based on the CBER/FDA bioequivalent allergy unit. Results Inhibition of the IgE binding to pollen allergens from twelve grasses was significantly stronger with the 5-grass than with the 1-grass pollen tablet (p < 0.0001), regardless of whether patients were considered as a whole or by geographical area. This difference between tablets was significantly greater for Southern than Northern European patients (p < 0.05). Conclusions Compared to the 1-grass tablet, the 5-grass tablet generally covers better the sensitization profiles of European patients, especially patients from Southern Europe, in principle less exposed to pollen from Timothy than from other grasses. The 5-grass tablet is therefore expected to elicit larger spectra of blocking antibodies, which might have implications in light of the generally accepted mechanisms of allergy immunotherapy. Electronic supplementary material The online version of this article (10.1186/s13601-019-0253-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thierry Batard
- 1Product Development, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
| | - Amparo Sanjuan
- 1Product Development, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
| | - Laure Denis
- 1Product Development, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
| | - Hélène Nguyen
- 2Global Medical Affairs, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
| | - Armelle Montagut
- 3Global Clinical Development, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
| | | | - Sabina Rak
- 5Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jean F Cuiné
- 1Product Development, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
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Blanco C, Bazire R, Argiz L, Hernández-Peña J. Sublingual allergen immunotherapy for respiratory allergy: a systematic review. Drugs Context 2018; 7:212552. [PMID: 30416528 PMCID: PMC6220898 DOI: 10.7573/dic.212552] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/28/2018] [Accepted: 10/01/2018] [Indexed: 01/01/2023] Open
Abstract
The objective of the systematic review is to provide complete and updated information on efficacy and safety of sublingual immunotherapy (SLIT) formulations for the treatment of allergic respiratory diseases (ARDs). The literature search was conducted on PubMed database, involving double-blind, randomized clinical trials published between January 1992 and 2018, written in English, and performed in humans. The number of articles finally selected for review was 112. Data from the majority of properly controlled clinical trials demonstrate that SLIT is effective not only with short-term use (first year) but also with long-term use (up to the third year of active therapy), for treating ARDs in children and adults. Both continuous and discontinuous schemes of administration showed significant reductions in symptom and medication scores. Moreover, a SLIT-induced disease-modifying effect has been documented mainly with grass pollen extracts, since improvement is maintained during at least 2 years of follow-up after a 3-year treatment period. Additionally, allergen immunotherapy should also be considered a preventive strategy, especially for decreasing bronchial asthma incidence in children and adolescents with allergic rhinitis treated with SLIT. This therapy is also safe, producing only a few mainly local and mild-to-moderate adverse events, and usually self-limited in time. The registration and authorization of allergen SLIT preparations (grasses and house-dust mite tablets) as drugs by regulatory agencies, such as the United States Food and Drug Administration (FDA) and the European Medicines Agency (EMA), has represented a landmark in allergy immunotherapy research. Further long-term studies, specially designed with allergens other than grass pollen or house-dust mites, not only in allergic rhinoconjunctivitis but also on asthmatic subjects, as well as studies comparing different administration schedules and/or routes, are required in order to continue the progress in the modern development of this particularly promising therapy.
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Affiliation(s)
- Carlos Blanco
- Allergy Service, University Hospital La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- RETIC ARADYAL RD16/0006/0015, Instituto de Salud Carlos III, Madrid, Spain
| | - Raphaelle Bazire
- Allergy Service, University Hospital La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
| | - Laura Argiz
- Allergy Service, University Hospital La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
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Jin JJ, Li JT, Klimek L, Pfaar O. Sublingual Immunotherapy Dosing Regimens: What Is Ideal? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2017; 5:1-10. [PMID: 28065336 DOI: 10.1016/j.jaip.2016.09.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 09/01/2016] [Accepted: 09/13/2016] [Indexed: 12/16/2022]
Abstract
Sublingual immunotherapy (SLIT) is a treatment for allergic respiratory diseases that has demonstrated efficacy and safety. Several formulations of SLIT are now available worldwide for treatment of allergic rhinitis (AR). Grass tablets containing 15 to 25 μg of group 5 major allergen reduced combined AR symptoms and medication use by 23% to 41% in 3 treatment years and 2 follow-up years. Ragweed pollen tablets (12 μg of Ambrosia artemisiifolia 1) and liquid extracts (50 μg of Ambrosia artemisiifolia 1) reduced combined AR symptoms and medication use by 26% and 43%, respectively. House dust mite tablets containing 300 index of reactivity (16 μg of Dermatophagoides pteronyssinus 1 and 68 μg of Dermatophagoides farinae 1) reduced AR symptoms by 17.9% and 17.0% in 1 treatment year and 1 follow-up year, respectively. A different house dust mite tablet (12 standardized quality house dust mite) was able to reduce the risk of asthma exacerbation compared with placebo (hazard ratio, 0.69; 95% CI, 0.50-0.96). Most adverse events were local and mild to moderate in severity. For SLIT products reviewed herein, effective doses range from 1.12 to 84 μg of major allergen(s). However, allergen content is not uniformly standardized, can be expressed in arbitrary or proprietary units (depending on the manufacturer), and assays for determination of allergen content are highly variable. Thus, results from one study of a given product cannot be extrapolated to other products. Despite these limitations, this Clinical Management Review aims to provide practitioners with relevant information on the dosing of selected SLIT formulations in the treatment of allergic respiratory disease.
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Affiliation(s)
- Jay J Jin
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn.
| | - James T Li
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn
| | - Ludger Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany
| | - Oliver Pfaar
- Center for Rhinology and Allergology, Wiesbaden, Germany; Department of Otorhinolaryngology, Head and Neck Surgery, Universitatsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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