Biologic Drugs: The Evolution of Asthma Therapeutics

A special issue of Biomedicines (ISSN 2227-9059). This special issue belongs to the section "Immunology and Immunotherapy".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1885

Editors

Special Issue Information

Dear Colleagues,

Asthma is a heterogeneous respiratory disease characterized by chronic airway inflammation, clinically expressed by different phenotypes driven by complex pathobiological mechanisms (endotypes). Within this context, over the last few years, several molecular effectors and signalling pathways have emerged as suitable targets for biological therapies in severe asthma that is refractory to standard treatments. Indeed, many therapeutic antibodies currently allow to interfere at different levels with the chain of pathogenic events leading to airway inflammation. In addition to pro-allergic immunoglobulin E (IgE), which chronologically represents the first molecule against which an anti-asthma monoclonal antibody was developed, other targets are now successfully exploited by biological treatments for severe asthma. In particular, interleukin 5 (IL-5) or its receptor can be targeted by powerful anti-eosinophilic biologics. Moreover, the pleiotropic effects of interleukins 4 (IL-4) and 13 (IL-13) can be blocked at the receptor level, and the alarmin thymic stromal lymphopoietin (TSLP) can also be neutralized by a specific inhibitor. In addition to these currently available drugs, other biologics are under clinical development. Therefore, ongoing and future biological therapies are significantly changing the global scenario of severe asthma management. These new therapeutic options make it possible to implement phenotype/endotype-specific treatments that precisely address the individual traits of asthma pathobiology, thereby delineating personalized approaches. Such tailored strategies thus allow for the successful targeting of the immune–inflammatory responses underlying uncontrolled, severe asthma.

Prof. Dr. Girolamo Pelaia
Dr. Corrado Pelaia
Guest Editors

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Keywords

  • severe asthma
  • IgE
  • IL-4
  • IL-5
  • IL-13
  • TSLP
  • monoclonal antibodies

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Published Papers (2 papers)

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Research

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13 pages, 687 KB  
Article
Recovery of Olfactory Function After Mepolizumab Treatment in Patients with Chronic Rhinosinusitis with Nasal Polyps: Influence of the Number of Surgeries
by Alda Cardesín, Ana Sogo, Aina Sansa, Mariana Campos, Carlota Rovira and Christian Domingo
Biomedicines 2026, 14(7), 1497; https://doi.org/10.3390/biomedicines14071497 - 2 Jul 2026
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Abstract
Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a predominantly type 2 inflammatory disease associated with significant olfactory dysfunction. The real-life effect of mepolizumab on smell recovery and the influence of prior surgery and peripheral eosinophilia remain unclear. Objective: Our objective [...] Read more.
Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a predominantly type 2 inflammatory disease associated with significant olfactory dysfunction. The real-life effect of mepolizumab on smell recovery and the influence of prior surgery and peripheral eosinophilia remain unclear. Objective: Our objective was to evaluate olfactory outcomes after 12 months of mepolizumab in CRSwNP and analyze the impact of previous surgeries and baseline blood eosinophilia. Methods: This was a prospective observational study including 33 consecutive CRSwNP patients treated with mepolizumab. Olfactory function was assessed using subjective measures (VAS: Visual Analogue Scale; SNOT-22: Sino-nasal outcome test, item 21) and psychophysical testing (BOT-8: Barcelona Olfactory Test, detection and identification). Nasal Polyp Score (NPS), peripheral eosinophilia, and quality of life were recorded. Patients were stratified by number of prior sinonasal surgeries. Results: Significant improvement occurred in all subjective and objective olfactory measures at 12 months (BOT-8 detection: 100% vs. 0%; identification: 71% vs. 0%; VAS: 3 vs. 10; SNOT-22 item 21: 1 vs. 5; all p < 0.05). A lower improvement occurred in patients with ≥3 prior; however, this subgroup was small (p < 0.001). Baseline blood eosinophilia was not associated with olfactory improvement. Larger baseline polyp size correlated inversely with subjective olfactory gain (r = −0.48; p = 0.03). Conclusions: Twelve months of mepolizumab improved olfactory function in CRSwNP, especially in patients with fewer prior surgeries. Olfactory dysfunction responds to multifactorial mechanisms beyond blood eosinophilia, including tissue remodeling, nostril obstruction and possible neuroinflammatory mechanisms involving central olfactory pathways, supporting psychophysical test assessment and reinforcing olfaction as a marker of therapeutic response. Full article
(This article belongs to the Special Issue Biologic Drugs: The Evolution of Asthma Therapeutics)
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Review

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19 pages, 1911 KB  
Review
Allergen Immunotherapy and Possible Clinical Remission: Toward a Disease-Modifying Paradigm in Allergic Disorders
by Fabiana Furci, Remo Poto, Corrado Pelaia, Gilda Varricchi, Chiara Lupia, Vincenzo Patella, Gianenrico Senna, Girolamo Pelaia and Giorgio Walter Canonica
Biomedicines 2026, 14(6), 1361; https://doi.org/10.3390/biomedicines14061361 - 17 Jun 2026
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Abstract
Allergen immunotherapy (AIT) represents the only disease-modifying treatment currently available for IgE-mediated allergic diseases. Traditionally employed to alleviate symptoms and reduce pharmacological dependence, AIT is now being reconsidered within a broader and more ambitious therapeutic framework: the induction of long-term clinical remission. In [...] Read more.
Allergen immunotherapy (AIT) represents the only disease-modifying treatment currently available for IgE-mediated allergic diseases. Traditionally employed to alleviate symptoms and reduce pharmacological dependence, AIT is now being reconsidered within a broader and more ambitious therapeutic framework: the induction of long-term clinical remission. In the field of allergic diseases, the concept of disease control has recently been integrated with that of clinical remission. This review discusses the evolving concept of remission in allergic disorders, particularly allergic rhinitis and allergic asthma, in patients treated with AIT. Starting from the definition of clinical remission, this review aims to analyze the evidence supporting this concept and explore potential tools for clinical application in allergic patients treated with AIT, the only causal therapy. Full article
(This article belongs to the Special Issue Biologic Drugs: The Evolution of Asthma Therapeutics)
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