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Global Variability in Administrative Approval Prescription Criteria for Biologic Therapy in Severe Asthma

Publikation: Bidrag til tidsskriftReviewForskningpeer review


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  • Celeste M Porsbjerg
  • Andrew N Menzies-Gow
  • Trung N Tran
  • Ruth B Murray
  • Bindhu Unni
  • Shi Ling Audrey Ang
  • Marianna Alacqua
  • Mona Al-Ahmad
  • Riyad Al-Lehebi
  • Alan Altraja
  • Andrey S Belevskiy
  • Unnur S Björnsdóttir
  • Arnaud Bourdin
  • John Busby
  • G Walter Canonica
  • George C Christoff
  • Borja G Cosio
  • Richard W Costello
  • J Mark FitzGerald
  • João A Fonseca
  • Susanne Hansen
  • Liam G Heaney
  • Enrico Heffler
  • Mark Hew
  • Takashi Iwanaga
  • David J Jackson
  • Janwillem W H Kocks
  • Maria Kallieri
  • Hsin-Kuo Bruce Ko
  • Mariko Siyue Koh
  • Désirée Larenas-Linnemann
  • Lauri A Lehtimäki
  • Stelios Loukides
  • Njira Lugogo
  • Jorge Maspero
  • Andriana I Papaioannou
  • Luis Perez-de-Llano
  • Paulo Márcio Pitrez
  • Todor A Popov
  • Linda M Rasmussen
  • Chin Kook Rhee
  • Mohsen Sadatsafavi
  • Johannes Schmid
  • Salman Siddiqui
  • Camille Taillé
  • Christian Taube
  • Carlos A Torres-Duque
  • Charlotte Ulrik
  • John W Upham
  • Eileen Wang
  • Michael E Wechsler
  • Lakmini Bulathsinhala
  • Victoria Carter
  • Isha Chaudhry
  • Neva Eleangovan
  • Naeimeh Hosseini
  • Mari-Anne Rowlands
  • David Price
  • Job Fm van Boven
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BACKGROUND: Regulatory bodies have approved five biologics for severe asthma. However, regional differences in accessibility may limit the global potential for personalized medicine.

OBJECTIVE: To compare global differences in ease of access to biologics.

METHODS: In April 2021, national prescription criteria for omalizumab, mepolizumab, reslizumab, benralizumab, and dupilumab were reviewed by severe asthma experts collaborating in the International Severe Asthma Registry. Outcomes (per country, per biologic) were (1) country-specific prescription criteria and (2) development of the Biologic Accessibility Score (BACS). The BACS composite score incorporates 10 prescription criteria, each with a maximum score of 10 points. Referenced to European Medicines Agency marketing authorization specifications, a higher score reflects easier access.

RESULTS: Biologic prescription criteria differed substantially across 28 countries from five continents. Blood eosinophil count thresholds (usually ≥300 cells/μL) and exacerbations were key requirements for anti-IgE/anti-IL-5/5R prescriptions in around 80% of licensed countries. Most countries (40% for dupilumab to 54% for mepolizumab) require two or more moderate or severe exacerbations, whereas numbers ranged from none to four. Moreover, 0% (for reslizumab) to 21% (for omalizumab) of countries required long-term oral corticosteroid use. The BACS highlighted marked between-country differences in ease of access. For omalizumab, mepolizumab, benralizumab, and dupilumab, only two, one, four, and seven countries, respectively, scored equal or higher than the European Medicines Agency reference BACS. For reslizumab, all countries scored lower.

CONCLUSIONS: Although some differences were expected in country-specific biologic prescription criteria and ease of access, the substantial differences found in the current study present a challenge to implementing precision medicine across the world.

TidsskriftThe journal of allergy and clinical immunology. In practice
Udgave nummer5
Sider (fra-til)1202-1216.e23
Antal sider93
StatusUdgivet - maj 2022

Bibliografisk note

Copyright © 2021. Published by Elsevier Inc.

ID: 70585583