Factors reducing omalizumab response in severe asthma

Nicola Scichilone, Pierluigi Paggiaro, Marco Scalese, Cresti, Cavaliere, Latorre, Milanese, Perrella, Carlo Cavaliere, Alessandra Vultaggio, Bruno Sposato, Masieri, Andrea Matucci, Alberto Ricci, Pierachille Santus

Risultato della ricerca: Articlepeer review

32 Citazioni (Scopus)


Background: Despite adding Omalizumab to conventional therapy, several severe asthmatics still show poor disease control. We investigated the factors that may affect a reduced Omalizumab response in a large population of severe asthmatics. Methods: 340 patients were retrospectively evaluated. FEV1%, FVC%, Asthma Control Test (ACT), fractional exhaled nitric oxide (FENO), possible step-downs/step-ups of concomitant therapies, exacerbations, disease control levels, ICS doses and SABA use, observed at the end of treatment, were considered as a response to Omalizumab. Results: Age was an independent risk factor for a reduced response concerning FEV1%, FVC%, ACT and for a lower asthma control. Obesity (vs normal weight) was a determinant condition for exacerbations (OR:3.114[1.509–6.424], p = 0.002), for a disease partial/no control (OR:2.665[1.064–6.680], p = 0.036), for excessive SABA use (OR:4.448[1.837–10.768], p = 0.002) and for an unchanged/increased level of concomitant asthma medications. Furthermore, obesity also reduced the response in FEV1 (β = −6.981,p = 0.04), FVC (β = −11.689,p = 0.014) and ACT (β = −2.585, p = 0.027) and was associated with a higher FENO level (β = 49.045,p = 0.040). Having at least one comorbidity was a risk factor for exacerbations (OR:1.383[1.128–1.697], p = 0.008) and for an ACT <20 (OR:2.410[1.071–3.690], p = 0.008). Specifically, chronic heart disease was associated with both a lower ACT and FVC% whereas gastroesophageal reflux with a partial/no asthma control. Nasal polyps were a predisposing factor leading both to exacerbations and to the use of higher inhaled corticosteroids doses. Moreover, smoking habits, pollen or dog/cat dander co-sensitizations may negatively influence Omalizumab response. Conclusion: Age, obesity, comorbidities, smoking habits, nasal polyps, allergic poly-sensitization might reduce Omalizumab effectiveness independently to other asthma-influencing factors.
Lingua originaleEnglish
pagine (da-a)78-85
Numero di pagine8
RivistaEuropean Journal of Internal Medicine
Stato di pubblicazionePublished - 2018

All Science Journal Classification (ASJC) codes

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