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ORIGINAL RESEARCH

Long-Term Efficacy and Clinical Remission After Benralizumab Treatment in Patients with Severe Eosinophilic Asthma: A Retrospective Study

ORCID Icon, , , ORCID Icon, , , & ORCID Icon show all
Pages 1731-1741 | Received 30 Sep 2022, Accepted 23 Nov 2022, Published online: 29 Nov 2022

Figures & data

Table 1 Patient Characteristics at Baseline (n=23)

Table 2 Change from Baseline After 2 Years in Asthma Patients with or Without Previous Biologics

Figure 1 Changes in clinical parameters before and after benralizumab treatment (A) Change in FEV1 from baseline in the bio-naïve group and switching group (B) Number of annual exacerbations in all patients, the bio-naïve group and the switching group (C) Change in ACT score from baseline in the bio-naïve group and switching group (D) Reduction rate of the OCS dose from baseline in the bio-naïve group and switching group. All data are presented as the mean. In (A), (B) and (C), the data were analyzed using the Wilcoxon signed-rank test. The upper and lower bars represent the standard errors in (A) and (C). *P < 0.05 compared with pre-BEN. **P < 0.05 compared with pre-MEP. P <0.01 compared with pre-MEP.

Abbreviations: ACT, Asthma Control Test; FEV1, forced expiratory volume in one second; BEN, benralizumab; MEP, mepolizumab; pre-BEN or pre-MEP, pretreatment with BEN or MEP; m, month(s); n, number of patients for whom clinical data were available; OCS, oral corticosteroid.
Figure 1 Changes in clinical parameters before and after benralizumab treatment (A) Change in FEV1 from baseline in the bio-naïve group and switching group (B) Number of annual exacerbations in all patients, the bio-naïve group and the switching group (C) Change in ACT score from baseline in the bio-naïve group and switching group (D) Reduction rate of the OCS dose from baseline in the bio-naïve group and switching group. All data are presented as the mean. In (A), (B) and (C), the data were analyzed using the Wilcoxon signed-rank test. The upper and lower bars represent the standard errors in (A) and (C). *P < 0.05 compared with pre-BEN. **P < 0.05 compared with pre-MEP. †P <0.01 compared with pre-MEP.

Figure 2 Achievement rates of clinical remission and the four criteria. This radar chart is composed of an ACT ≥ 20, no exacerbation, no maintenance OCS, a %FEV1 ≥ 80 and clinical remission. The analyses were conducted for (A) all patients, bio-naïve (BEN) patients and switching (M-B) patients; (B) patients with a BMI ≥ 25 and patients with a BMI < 25 (kg/m2); (C) patients with an MPR ≥ 80 and patients with an MPR < 80 (%); (D) patients with a disease duration ≥ 20 and patients with a disease duration < 20 (years); (E) ECRS (+) and ECRS (-) patients; (F) patients with a BEC ≥ 300 and patients with a BEC < 300 (/µL); (G) patients with a BBC ≥ 22 and patients with a BBC < 22 (/µL); and (H) patients with FeNO ≥ 50 and patients with FeNO < 50 (ppb).

Abbreviations: ACT, Asthma Control Test; OCS, oral corticosteroid; FEV1, forced expiratory volume in one second; BEN, benralizumab; M-B, switching from mepolizumab to benralizumab; BMI, body mass index; MPR, medication possession ratio; ECRS, eosinophilic chronic rhinosinusitis; BEC, blood eosinophil count; BBC, blood basophil count; FeNO, fractional exhaled nitric oxide.
Figure 2 Achievement rates of clinical remission and the four criteria. This radar chart is composed of an ACT ≥ 20, no exacerbation, no maintenance OCS, a %FEV1 ≥ 80 and clinical remission. The analyses were conducted for (A) all patients, bio-naïve (BEN) patients and switching (M-B) patients; (B) patients with a BMI ≥ 25 and patients with a BMI < 25 (kg/m2); (C) patients with an MPR ≥ 80 and patients with an MPR < 80 (%); (D) patients with a disease duration ≥ 20 and patients with a disease duration < 20 (years); (E) ECRS (+) and ECRS (-) patients; (F) patients with a BEC ≥ 300 and patients with a BEC < 300 (/µL); (G) patients with a BBC ≥ 22 and patients with a BBC < 22 (/µL); and (H) patients with FeNO ≥ 50 and patients with FeNO < 50 (ppb).