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Digital health is an umbrella term which encompasses eHealth and benefits from areas such as advanced computer sciences. eHealth includes mHealth apps, which offer the potential to redesign aspects of healthcare delivery. The capacity of apps to collect large amounts of longitudinal, real-time, real-world data enables the progression of biomedical knowledge. Apps for rhinitis and rhinosinusitis were searched for in the Google Play and Apple App stores, via an automatic market research tool recently developed using JavaScript. Over 1500 apps for allergic rhinitis and rhinosinusitis were identified, some dealing with multimorbidity. However, only six apps for rhinitis (AirRater, AllergyMonitor, AllerSearch, Husteblume, MASK-air and Pollen App) and one for rhinosinusitis (Galenus Health) have so far published results in the scientific literature. These apps were reviewed for their validation, discovery of novel allergy phenotypes, optimisation of identifying the pollen season, novel approaches in diagnosis and management (pharmacotherapy and allergen immunotherapy) as well as adherence to treatment. Published evidence demonstrates the potential of mobile health apps to advance in the characterisation, diagnosis and management of rhinitis and rhinosinusitis patients., (© 2022 The Authors. Clinical and Translational Allergy published by John Wiley and Sons Ltd on behalf of European Academy of Allergy and Clinical Immunology.)

Background: Evidence regarding the effectiveness of allergen immunotherapy (AIT) on allergic rhinitis has been provided mostly by randomised controlled trials, with little data from real-life studies., Objective: To compare the reported control of allergic rhinitis symptoms in three groups of users of the MASK-air ® app: those receiving sublingual AIT (SLIT), those receiving subcutaneous AIT (SCIT), and those receiving no AIT., Methods: We assessed the MASK-air ® data of European users with self-reported grass pollen allergy, comparing the data reported by patients receiving SLIT, SCIT and no AIT. Outcome variables included the daily impact of allergy symptoms globally and on work (measured by visual analogue scales-VASs), and a combined symptom-medication score (CSMS). We applied Bayesian mixed-effects models, with clustering by patient, country and pollen season., Results: We analysed a total of 42,756 days from 1,093 grass allergy patients, including 18,479 days of users under AIT. Compared to no AIT, SCIT was associated with similar VAS levels and CSMS. Compared to no AIT, SLIT-tablet was associated with lower values of VAS global allergy symptoms (average difference = 7.5 units out of 100; 95% credible interval [95%CrI] = -12.1;-2.8), lower VAS Work (average difference = 5.0; 95%CrI = -8.5;-1.5), and a lower CSMS (average difference = 3.7; 95%CrI = -9.3;2.2). When compared to SCIT, SLIT-tablet was associated with lower VAS global allergy symptoms (average difference = 10.2; 95%CrI = -17.2;-2.8), lower VAS Work (average difference = 7.8; 95%CrI = -15.1;0.2), and a lower CSMS (average difference = 9.3; 95%CrI = -18.5;0.2)., Conclusion: In patients with grass pollen allergy, SLIT-tablet, when compared to no AIT and to SCIT, is associated with lower reported symptom severity. Future longitudinal studies following internationally-harmonised standards for performing and reporting real-world data in AIT are needed to better understand its 'real-world' effectiveness., (© 2022 The Authors. Clinical and Translational Allergy published by John Wiley & Sons Ltd on behalf of European Academy of Allergy and Clinical Immunology.)

Competing Interests: IAgache is an Associate Editor Allergy and CTA. CA reports grants from Allergopharma, grants from Idorsia, Swiss National Science Foundation, Christine Kühne‐Center for Allergy Research and Education, European Commission's Horison's 2020 Framework Programme, Cure, Novartis Research Institutes, Astra Zeneca, scibase, advisory role in Sanofi/Regeneron, grants from Glakso Smith‐Kline, advisory role in scibase. IA reports personal fees from Hikma, Roxall, Astra Zeneca, Menarini, UCB, Faes Farma, Sanofi, Mundipharma, Bial, Amgen, Stallergenes. SBA reports grants from TEVA, personal fees from TEVA, AstraZeneca, Boehringer Ingelheim, GSK, Sanofi, Mylan. VC reports personal fees from ALK, Allergy Therapeutics, LETI, Thermofisher, Merck, Astrazeneca, GSK. TC reports grants and personal fees from Stallergenes. PD reports personal fees from ALK‐Abello, Stallergenes‐Greer, Astra Zeneca, GlaxoSmithKline, Mylan, Sanofi. SD reports personal fees and non‐financial support from ALK Abello, personal fees from Adiga, Biomay, Allergopharma, Anergis, Allergy Therapeutics. TH reports personal fees from GSK, Mundipharma, Orion Pharma. SH reports other from ALK‐Abelló, other from ALK‐Abelló. EH reports personal fees from Sanofi, Novartis, GSK, AstraZeneca, Circassia, Nestlè Purina. JCI reports personal fees from Faes Farma, Laboratorios Casasco Argentina, Abbott de Ecuador, EuroFarma Argentina. MJ reports personal fees from ALK‐Abello, Allergopharma, Stallergenes, Anergis, Allergy Therapeutics, Circassia, Leti, Biomay, HAL, during the conduct of the study; personal fees from Astra‐Zeneka, GSK, Novartis, Teva, Vectura, UCB, Takeda, Roche, Janssen, Medimmune, Chiesi,. LK reports grants and personal fees from Allergopharma, MEDA/Mylan, LETI Pharma, Sanofi, grants from Stallergenes, Quintiles, ASIT biotech, grants from ALK Abelló, Lofarma, AstraZeneca, GSK, Inmunotk, personal fees from Allergy Therapeut., HAL Allergie, Cassella med; and Membership: AeDA, DGHNO, Deutsche Akademie für Allergologie und klinische Immunologie, HNO‐BV, GPA, EAACI. PK reports personal fees from Adamed, Berlin Chemie Menarini, Boehringer Ingelheim, AstraZeneca, Lekam, Novartis, Polpharma, GSK, Polpharma, Sanofi, teva. VK reports other from GSK, non‐financial support from Mylan, AstraZeneca, Dimuna, Norameda. SL reports personal fees from DBV, Sanofi Aventis, Allergopharma, ALK, Nutricia, Bencard. EM reports personal fees from Sanofi, Novartis, AstraZeneca and Chiesi. JM reports personal fees and other from SANOFI‐GENZYME & REGENERON, NOVARTIS, ALLAKOS, MITSUBISHI‐TANABE, MENARINI, UCB, ASTRAZENECA, GSK, MSD, grants and personal fees from MYLAN‐MEDA Pharma, URIACH Group. MO reports personal fees from Hycor Diagnostics, Thermo Fisher Phadia. YO reports personal fees from Torii Pharmaceutical Co., Ltd., Shionogi Pharmaceutical Co.,Ltd. OP received research grants from Inmunotek S.L., Novartis and MINECO and has received fees for giving scientific lectures or participation in Advisory Boards from: Allergy Therapeutics, Amgen, AstraZeneca, Diater, GlaxoSmithKline, S.A, Inmunotek S.L, Novartis, Sanofi‐Genzyme and Stallergenes. NGP reports personal fees from Novartis, Nutricia, HAL, MENARINI/FAES FARMA, SANOFI, MYLAN/MEDA, BIOMAY, AstraZeneca, GSK, MSD, ASIT BIOTECH, Boehringer Ingelheim, grants from Gerolymatos International SA, Capricare. OP reports grants and personal fees from ALK‐Abelló, Allergopharma, Stallergenes Greer, HAL Allergy Holding B.V./HAL Allergie GmbH, Bencard Allergie GmbH/Allergy Therapeutics, Lofarma, ASIT Biotech Tools S.A., Laboratorios LETI/LETI Pharma, Anergis S.A., Glaxo Smith Kline, grants from Biomay, Circassia, Pohl‐Boskamp, Inmunotek S.L., personal fees from MEDA Pharma/MYLAN, Mobile Chamber Experts (a GA2LEN Partner), Indoor Biotechnologies, Astellas Pharma Global, EUFOREA, ROXALL Medizin, Novartis, Sanofi‐Aventis and Sanofi‐Genzyme, Med Update Europe GmbH, streamedup! GmbH, John Wiley and Sons, AS. DPreports grants and personal fees from GlaxoSmithKline, personal fees from Menarini, Pliva, Belupo, AbbVie, Novartis, MSD, Chiesi, Revenio, personal fees and non‐financial support from Boehringer Ingelheim, non‐financial support from Philips. MR is on the Advisory board‐ A. Menarini ‐ Speaker ‐ Astra Zeneca, Novartis, Sanofi, Mylan. FSRreports speaker and advisory fees from AstraZeneca, Novartis, Sanofi, GSK, Teva and Lusomedicamenta. GR reports payment to his Institution from Allergo Pharma. BSreports personal fees from Allergopharma, during the conduct of the study; grants from National Health Programm, grant, personal fees from Polpharma, ASTRA, personal fees from Mylan, Adamed, patient ombudsman, national Centre for Research and Development, Polish Allergology Society. JS reports grants and personal fees from Sanofi, personal fees from GSK, Novartis, Astra Zeneca, Mundipharma, Faes Farma. GS reports personal fees from ALK, and leds on the BSACI Rhinitis Guidelines and lead for EUFOREA on Allergic Rhinitis. PSG reports personal fees from Allergopharma, ALK, grants from Bencard, grants and personal fees from Stallergenes. JS reports personal fees from Mylan, F2F events. ATB reports grants and personal fees from Teva, AstraZeneca, GSK Sanofi, Mundipharma, personal fees from Bial, Novartis. MJTreports grants from European Commission, SEAIC, ISCIII, personal fees from Diater laboratory, Leti laboratory, Aimmune Therapeutics. MW reports personal fees from ALK‐Abello, Allergopharma, AstraZeneca, Bencard, Genzyme, GlaxoSmithKline, HAL Allergy, LETI, Meda Pharma, Novartis, Sanofi, Stallergenes, Teva. DW reports other from Optinose, ALK, Sanofi; past Co‐Chair of the Joint Task Force on Practice Parameters of the AAAAI and ACAAI. Second author of a recently published practice parameter on Rhinitis. MW reports other from Aralez (Medexus), Pediapharm, Pfizer, Astra Zeneca, GSK, Alk. MZ reports personal fees from Takeda. TZ reports and Organizational affiliations: Commitee member: WHO‐Initiative “Allergic Rhinitis and Its Impact on Asthma” (ARIA). Member of the Board: German Society for Allergy and Clinical Immunology (DGAKI). Head: European Centre for Allergy Research Foundation (ECARF). Secretary General: Global Allergy and Asthma European Network (GA2LEN). Member: Committee on Allergy Diagnosis and Molecular Allergology, World Allergy Organization (WAO). FIGURE 1Countries with Pocket Guide membersFIGURE 2Proposed Flow of Precision Medicine approach in allergic diseases. *examples of exceptions: Thunderstorm‐induced asthma, patient with moderate rhinitis and severe asthma during pollen seasonFIGURE 3Treatment algorithm using visual analogue scale (VAS) for adolescents and adults AIT, allergen immunotherapy; VAS, visual analogue scale.FIGURE 4Algorithm for AIT in asthma

Background: The analysis of mobile health (mHealth) data has generated innovative insights into improving allergic rhinitis control, but additive information is needed. A cross-sectional real-world observational study was undertaken in 17 European countries during and outside the estimated pollen season. The aim was to collect novel information including the phenotypic characteristics of the users., Methods: The Allergy Diary-MASK-air-mobile phone app, freely available via Google Play and App, was used to collect the data of daily visual analogue scales (VASs) for overall allergic symptoms and medication use. Fluticasone Furoate (FF), Mometasone Furoate (MF), Azelastine Fluticasone Proprionate combination (MPAzeFlu) and eight oral H1-antihistamines were studied. Phenotypic characteristics were recorded at entry. The ARIA severity score was derived from entry data. This was an a priori planned analysis., Results: 9037 users filled in 70,286 days of VAS in 2016, 2017 and 2018. The ARIA severity score was lower outside than during the pollen season. Severity was similar for all treatment groups during the pollen season, and lower in the MPAzeFlu group outside the pollen season. Days with MPAzeFlu had lower VAS levels and a higher frequency of monotherapy than the other treatments during the season. Outside the season, days with MPAzeFlu also had a higher frequency of monotherapy. The number of reported days was significantly higher with MPAzeFlu during and outside the season than with MF, FF or oral H1-antihistamines., Conclusions: This study shows that the overall efficacy of treatments is similar during and outside the pollen season and indicates that medications are similarly effective during the year.

Background: In all societies, the burden and cost of allergic and chronic respiratory diseases are increasing rapidly. Most economies are struggling to deliver modern health care effectively. There is a need to support the transformation of the health care system into integrated care with organizational health literacy., Main Body: As an example for chronic disease care, MASK (Mobile Airways Sentinel NetworK), a new project of the ARIA (Allergic Rhinitis and its Impact on Asthma) initiative, and POLLAR (Impact of Air POLLution on Asthma and Rhinitis, EIT Health), in collaboration with professional and patient organizations in the field of allergy and airway diseases, are proposing real-life ICPs centred around the patient with rhinitis, and using mHealth to monitor environmental exposure. Three aspects of care pathways are being developed: (i) Patient participation, health literacy and self-care through technology-assisted "patient activation", (ii) Implementation of care pathways by pharmacists and (iii) Next-generation guidelines assessing the recommendations of GRADE guidelines in rhinitis and asthma using real-world evidence (RWE) obtained through mobile technology. The EU and global political agendas are of great importance in supporting the digital transformation of health and care, and MASK has been recognized by DG Santé as a Good Practice in the field of digitally-enabled, integrated, person-centred care., Conclusion: In 20 years, ARIA has considerably evolved from the first multimorbidity guideline in respiratory diseases to the digital transformation of health and care with a strong political involvement., Competing Interests: Competing interestsDr. Ansotegui reports personal fees from Mundipharma, Roxall, Sanofi, MSD, Faes Farma, Hikma, UCB, Astra Zeneca, outside the submitted work. Dr. Bosnic-Anticevich reports grants from TEVA, personal fees from TEVA, Boehringer Ingelheim, AstraZeneca, Sanofi, Mylan, outside the submitted work. Dr. Bousquet reports personal fees and others from Chiesi, Cipla, Hikma, Menarini, Mundipharma, Mylan, Novartis, Sanofi-Aventis, Takeda, Teva, Uriach, others from Kyomed, outside the submitted work. Dr. Boulet reports and Disclosure of potential conflicts of interest—last 3 years. Research grants for participation to multicentre studies, AstraZeneca, Boston Scientific, GlaxoSmithKline, Hoffman La Roche, Novartis, Ono Pharma, Sanofi, Takeda. Support for research projects introduced by the investigator AstraZeneca, Boehringer-Ingelheim, GlaxoSmithKline, Merck, Takeda. Consulting and advisory boards Astra Zeneca, Novartis, Methapharm. Royalties Co-author of “Up-To-Date” (occupational asthma). Nonprofit grants for production of educational materials AstraZeneca, Boehringer-Ingelheim, GlaxoSmithKline, Merck Frosst, Novartis. Conference fees AstraZeneca, GlaxoSmithKline, Merck, Novartis. Support for participation in conferences and meetings Novartis, Takeda. Other participations Past president and Member of the Canadian Thoracic Society Respiratory Guidelines Committee; Chair of the Board of Directors of the Global Initiative for Asthma (GINA). Chair of Global Initiative for Asthma (GINA) Guidelines Dissemination and Implementation Committee; Laval University Chair on Knowledge Transfer, Prevention and Education in Respiratory and Cardiovascular Health; Member of scientific committees for the American College of Chest Physicians, American Thoracic Society, European Respiratory Society and the World Allergy Organization; 1st Vice-President of the Global Asthma Organization “InterAsma”. Dr. Casale reports grants and non-financial support from Stallergenes, outside the submitted work. Dr. Cruz reports grants and personal fees from GlaxoSmithKline, personal fees from Boehrinher Ingelheim, AstraZeneca, Novartis, Merk, Sharp & Dohme, MEDA Pharma, EUROFARMA, Sanofi Aventis, outside the submitted work. Dr. Ebisawa reports personal fees from DBV Technologies, Mylan EPD maruho, Shionogi & CO., Ltd., Kyorin Pharmaceutical Co., Ltd., Thermofisher Diagnostics, Pfizer, Beyer, Nippon Chemifar, Takeda Pharmaceutical Co., Ltd., MSD, outside the submitted work. Dr. Ivancevich reports personal fees from Euro Farma Argentina, Faes Farma, non-financial support from Laboratorios Casasco, outside the submitted work. Dr. Haahtela reports personal fees from Mundipharma, Novartis, and Orion Pharma, outside the submitted work. Dr. Klimek reports grants and personal fees from ALK Abelló, Denmark, Novartis, Switzerland, Allergopharma, Germany, Bionorica, Germany, GSK, Great Britain, Lofarma, Italy, personal fees from MEDA, Sweden, Boehringer Ingelheim, Germany, grants from Biomay, Austria, HAL, Netherlands, LETI, Spain, Roxall, Germany, Bencard, Great Britain, outside the submitted work. V.KV has received payment for consultancy from GSK and for lectures from StallergensGreer, Berlin-CHemie and sponsorship from MYLAN for in the following professional training: ARIA masterclass in allergic rhinitis participation. Dr. Larenas Linnemann reports personal fees from GSK, Astrazeneca, MEDA, Boehringer Ingelheim, Novartis, Grunenthal, UCB, Amstrong, Siegfried, DBV Technologies, MSD, Pfizer., grants from Sanofi, Astrazeneca, Novartis, UCB, GSK, TEVA, Chiesi, Boehringer Ingelheim, outside the submitted work. Dr. Mösges reports personal fees from ALK, grants from ASIT biotech, Leti, BitopAG, Hulka, Ursapharm, Optima; personal fees from allergopharma, Nuvo, Meda, Friulchem, Hexal, Servier, Bayer, Johnson & Johnson, Klosterfrau, GSK, MSD, FAES, Stada, UCB, Allergy Therapeutics; grants and personal fees from Bencard, Stallergenes; grants, personal fees and non-financial support from Lofarma; non-financial support from Roxall, Atmos, Bionorica, Otonomy, Ferrero; personal fees and non-financial support from Novartis; Dr. Okamoto reports personal fees from Eizai Co., Ltd., Shionogi Co., Ltd., Torii Co., Ltd., GSK, MSD, Kyowa Co., Ltd., grants and personal fees from Kyorin Co., Ltd., Tiho Co., Ltd., grants from Yakuruto Co., Ltd., Yamada Bee Farm, outside the submitted work. Dr. Papadopoulos reports grants from Gerolymatos, personal fees from Hal Allergy B.V., Novartis Pharma AG, Menarini, Hal Allergy B.V., outside the submitted work. Dr. Pépin reports grants from AIR LIQUIDE FOUNDATION, AGIR à dom, ASTRA ZENECA, FISHER & PAYKEL, MUTUALIA, PHILIPS, RESMED, VITALAIRE, other from AGIR à dom, ASTRA ZENECA, BOEHRINGER INGELHEIM, JAZZ PHARMACEUTICAL, NIGHT BALANCE, PHILIPS, RESMED, SEFAM, outside the submitted work. Dr. Pfaar reports grants and personal fees from ALK-Abelló, Allergopharma Stallergenes Greer, HAL Allergy Holding B.V./HAL Allergie GmbH, Bencard Allergie GmbH/Allergy Therapeutics, Lofarma, grants from Biomay, ASIT Biotech Tools S.A, Laboratorios LETI/LETI Pharma, Anergis S.A., grants from Nuvo, Circassia, Glaxo Smith Kline, personal fees from Novartis Pharma, MEDA Pharma, Mobile Chamber Experts (a GA2LEN Partner), Pohl-Boskamp, Indoor Biotechnologies, grants from, outside the submitted work. Dr. Todo-Bom reports grants and personal fees from Novartis, Mundipharma, GSK Teva Pharma, personal fees from AstraZeneca, grants from Leti, outside the submitted work. Dr. Tsiligianni reports advisory boards from Boehringer Ingelheim and Novartis and a grant from GSK, outside the submitted work. Dr. Wallace reports and Indicates that she is the co-chair of the Joint Task Force on Practice Parameters, a task force composed of 12 members of the American Academy of Allergy, Asthma, and Immunology and the American College of Allergy, Asthma, and Immunology. Dr. Waserman reports other from CSL Behring, Shire, AstraZeneca,Teva, Meda, Merck, outside the submitted work. Dr. Zuberbier reports and Organizational affiliations: Commitee member: WHO-Initiative “Allergic Rhinitis and Its Impact on Asthma” (ARIA). Member of the Board: German Society for Allergy and Clinical Immunology (DGAKI). Head: European Centre for Allergy Research Foundation (ECARF). Secretary General: Global Allergy and Asthma European Network (GA2LEN). Member: Committee on Allergy Diagnosis and Molecular Allergology, World Allergy Organization (WAO).

Aims: Mobile Airways Sentinel NetworK (MASK) belongs to the Fondation Partenariale MACVIA-LR of Montpellier, France and aims to provide an active and healthy life to rhinitis sufferers and to those with asthma multimorbidity across the life cycle, whatever their gender or socio-economic status, in order to reduce health and social inequities incurred by the disease and to improve the digital transformation of health and care. The ultimate goal is to change the management strategy in chronic diseases., Methods: MASK implements ICT technologies for individualized and predictive medicine to develop novel care pathways by a multi-disciplinary group centred around the patients., Stakeholders: Include patients, health care professionals (pharmacists and physicians), authorities, patient's associations, private and public sectors., Results: MASK is deployed in 23 countries and 17 languages. 26,000 users have registered., Eu Grants 2018: MASK is participating in EU projects (POLLAR: impact of air POLLution in Asthma and Rhinitis, EIT Health, DigitalHealthEurope, Euriphi and Vigour)., Lessons Learnt: (i) Adherence to treatment is the major problem of allergic disease, (ii) Self-management strategies should be considerably expanded (behavioural), (iii) Change management is essential in allergic diseases, (iv) Education strategies should be reconsidered using a patient-centred approach and (v) Lessons learnt for allergic diseases can be expanded to chronic diseases.

mHealth, such as apps running on consumer smart devices is becoming increasingly popular and has the potential to profoundly affect healthcare and health outcomes. However, it may be disruptive and results achieved are not always reaching the goals. Allergic Rhinitis and its Impact on Asthma (ARIA) has evolved from a guideline using the best evidence-based approach to care pathways suited to real-life using mobile technology in allergic rhinitis (AR) and asthma multimorbidity. Patients largely use over-the-counter medications dispensed in pharmacies. Shared decision making centered around the patient and based on self-management should be the norm. Mobile Airways Sentinel networK (MASK), the Phase 3 ARIA initiative, is based on the freely available MASK app ( the Allergy Diary , Android and iOS platforms). MASK is available in 16 languages and deployed in 23 countries. The present paper provides an overview of the methods used in MASK and the key results obtained to date. These include a novel phenotypic characterization of the patients, confirmation of the impact of allergic rhinitis on work productivity and treatment patterns in real life. Most patients appear to self-medicate, are often non-adherent and do not follow guidelines. Moreover, the Allergy Diary is able to distinguish between AR medications. The potential usefulness of MASK will be further explored by POLLAR (Impact of Air Pollution on Asthma and Rhinitis), a new Horizon 2020 project using the Allergy Diary .

Background: The European Academy of Allergy and Clinical Immunology (EAACI) is in the process of developing the EAACI Guidelines for Allergen Immunotherapy (AIT) for Allergic Asthma. We seek to critically assess the effectiveness, cost-effectiveness and safety of AIT in the management of allergic asthma., Methods: We will undertake a systematic review, which will involve searching international biomedical databases for published, in progress and unpublished evidence. Studies will be independently screened against pre-defined eligibility criteria and critically appraised using established instruments. Data will be descriptively and, if possible and appropriate, quantitatively synthesised., Discussion: The findings from this review will be used to inform the development of recommendations for EAACI's Guidelines on AIT.

The Allergic Rhinitis and its Impact on Asthma (ARIA) initiative has had a significant impact, by raising awareness of allergic rhinitis (AR) and improving the diagnosis and treatment of AR sufferers. ARIA classifies the severity of AR as "mild" or "moderate/severe" on the basis of "yes"/"no" answers to four questions. This two-point classification has been criticized as providing little guidance on patient management; patients with "mild" AR are unlikely to consult a physician, whereas the group of patients with "moderate/severe" seen by specialists is heterogeneous. These perceived shortcomings have prompted attempts to improve the ARIA classification or, by analogy with the Global Initiative for Asthma (GINA), adopt approaches based on "disease control" in AR. Even though "disease severity", "disease control" and "responsiveness to treatment" are different (albeit related) metrics, they are not mutually exclusive. Currently, there is no single, accepted definition, but we propose that "disease control" in AR can combine (i) measurements of the severity and/or frequency of daily or nocturnal symptoms, (ii) impairments in social, physical, professional and educational activities, (iii) respiratory function monitoring and (iv) exacerbations (e.g. unscheduled medical consultations and rescue medication use). Although control-based classifications have a number of limitations (e.g. their dependence on treatment compliance and the patient's psychological status), these instruments could be used as an adjunct to the ARIA severity classification and regional practice parameters. Here, we assess the strengths and weaknesses of the current two-level ARIA classification, analyze published proposals for its modification and review the literature on instruments that measure AR control. We conclude that there is a need for research in which severity is compared with control in terms of their effects on patient management.