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Comparative Study
. 2023 Jul;78(7):1934-1948.
doi: 10.1111/all.15711. Epub 2023 Mar 27.

Comparative effectiveness of anti-IL5 and anti-IgE biologic classes in patients with severe asthma eligible for both

Paul E Pfeffer  1   2 Nasloon Ali  3   4 Ruth Murray  4 Charlotte Ulrik  5 Trung N Tran  6 Jorge Maspero  7   8 Matthew Peters  9 George C Christoff  10 Mohsen Sadatsafavi  11 Carlos A Torres-Duque  12 Alan Altraja  13 Lauri Lehtimäki  14   15 Nikolaos G Papadopoulos  16   17 Sundeep Salvi  18 Richard W Costello  19 Breda Cushen  20 Enrico Heffler  21   22 Takashi Iwanaga  23 Mona Al-Ahmad  24 Désirée Larenas-Linnemann  25 Piotr Kuna  26 João A Fonseca  27 Riyad Al-Lehebi  28   29 Chin Kook Rhee  30 Luis Perez-de-Llano  31   32 Diahn-Warng Perng Steve  33   34 Bassam Mahboub  35   36 Eileen Wang  37   38 Celine Goh  3   4 Juntao Lyu  3   39 Anthony Newell  3   39 Marianna Alacqua  40 Andrey S Belevskiy  41 Mohit Bhutani  42 Leif Bjermer  43 Unnur Bjornsdottir  44 Arnaud Bourdin  45 Anna von Bulow  46 John Busby  47 Giorgio Walter Canonica  21   22 Borja G Cosio  48 Delbert R Dorscheid  49 Mariana Muñoz-Esquerre  50   51 J Mark FitzGerald  52 Esther Garcia Gil  53 Peter G Gibson  54   55 Liam G Heaney  56 Mark Hew  57   58 Ole Hilberg  59 Flavia Hoyte  37   38 David J Jackson  60   61 Mariko Siyue Koh  62   63 Hsin-Kuo Bruce Ko  64 Jae Ha Lee  65 Sverre Lehmann  66   67 Cláudia Chaves Loureiro  68 Dóra Lúðvíksdóttir  69   70 Andrew N Menzies-Gow  71 Patrick Mitchell  72 Andriana I Papaioannou  73 Todor A Popov  74 Celeste M Porsbjerg  75 Laila Salameh  35   36 Concetta Sirena  76 Camille Taillé  77 Christian Taube  78 Yuji Tohda  79 Michael E Wechsler  80 David B Price  3   4   81
Affiliations
Comparative Study

Comparative effectiveness of anti-IL5 and anti-IgE biologic classes in patients with severe asthma eligible for both

Paul E Pfeffer et al. Allergy. 2023 Jul.

Abstract

Background: Patients with severe asthma may present with characteristics representing overlapping phenotypes, making them eligible for more than one class of biologic. Our aim was to describe the profile of adult patients with severe asthma eligible for both anti-IgE and anti-IL5/5R and to compare the effectiveness of both classes of treatment in real life.

Methods: This was a prospective cohort study that included adult patients with severe asthma from 22 countries enrolled into the International Severe Asthma registry (ISAR) who were eligible for both anti-IgE and anti-IL5/5R. The effectiveness of anti-IgE and anti-IL5/5R was compared in a 1:1 matched cohort. Exacerbation rate was the primary effectiveness endpoint. Secondary endpoints included long-term-oral corticosteroid (LTOCS) use, asthma-related emergency room (ER) attendance, and hospital admissions.

Results: In the matched analysis (n = 350/group), the mean annualized exacerbation rate decreased by 47.1% in the anti-IL5/5R group and 38.7% in the anti-IgE group. Patients treated with anti-IL5/5R were less likely to experience a future exacerbation (adjusted IRR 0.76; 95% CI 0.64, 0.89; p < 0.001) and experienced a greater reduction in mean LTOCS dose than those treated with anti-IgE (37.44% vs. 20.55% reduction; p = 0.023). There was some evidence to suggest that patients treated with anti-IL5/5R experienced fewer asthma-related hospitalizations (IRR 0.64; 95% CI 0.38, 1.08), but not ER visits (IRR 0.94, 95% CI 0.61, 1.43).

Conclusions: In real life, both anti-IgE and anti-IL5/5R improve asthma outcomes in patients eligible for both biologic classes; however, anti-IL5/5R was superior in terms of reducing asthma exacerbations and LTOCS use.

Keywords: ISAR; biologics; exacerbation; oral corticosteroids; real life.

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References

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