Pharmacotherapeutic group: Drugs for obstructive airway diseases, adrenergics in combination with anticholinergics, ATC code: R03AL07.
Mechanism of action
Bevespi Aerosphere contains two bronchodilators: glycopyrronium, a long-acting muscarinic antagonist (also referred to as an anticholinergic), and formoterol, a long-acting β2-adrenergic agonist with a rapid onset of action.
Glycopyrronium has similar affinity to the subtypes of muscarinic receptors M1 to M5. In the airways, it exhibits pharmacological effects through inhibition of the M3 receptor at the smooth muscle leading to bronchodilation. Formoterol causes direct relaxation of airway smooth muscle as a consequence of the increase in cyclic AMP through activation of adenylate cyclase. The combination of these substances with different mechanisms of action results in additive efficacy compared to use with either component alone.
As a consequence of the differential density of muscarinic receptors and β2‑adrenoceptors in the central and peripheral airways of the lung, muscarinic antagonists are more effective in relaxing central airways, and β2-adrenergic agonists are more effective in relaxing peripheral airways; relaxation of both central and peripheral airways with combination treatment may contribute to its beneficial effects on lung function.
Pharmacodynamic effects
In three Phase III, 24-week studies (PINNACLE 1, PINNACLE 2 and PINNACLE 4) Bevespi Aerosphere provided improvements over placebo in lung function (as measured by morning pre-dose trough forced expiratory volume in 1 second [FEV1]), with a demonstrated onset of action at 5 minutes following administration of the first dose on Day 1 (improvement over placebo by 187 mL, 186 mL and 179 mL in PINNACLE 1, PINNACLE 2 and PINNACLE 4, respectively [p <0.001]). The mean bronchodilator effect derived from serial FEV1 measurements at Day 1 and Week 12 from PINNACLE 1 are shown in Figure 1. In PINNACLE 2, the results were similar to those observed in PINNACLE 1.
Figure 1 - Mean Change from Baseline in FEV1 over Time on Day 1 and at Week 12
DAY 1

WEEK 12

Cardiac electrophysiology
A placebo- and active-controlled (moxifloxacin) thorough QT study in 69 healthy subjects did not demonstrate a clinically relevant effect on the QT interval, using a threshold of 10 ms. The largest mean (90% upper confidence bound) differences from placebo in baseline- and individually corrected QT was 3.1 (4.7) ms for Bevespi Aerosphere (14.4 /10 micrograms) and 7.6 (9.2) ms for glycopyrronium/formoterol with eight times the recommended dose of glycopyrronium and four times the recommended dose of formoterol.
Clinical efficacy
The clinical development program for Bevespi Aerosphere included three 24-week, randomised, double-blind, placebo-controlled, parallel-group pivotal Phase III studies in 5,433 patients with moderate to very severe COPD (PINNACLE 1, PINNACLE 2 and PINNACLE 4).
Effects on lung function
In studies PINNACLE 1, PINNACLE 2 and PINNACLE 4, Bevespi Aerosphere showed improvements in trough FEV1 over 24 weeks relative to placebo, glycopyrronium and formoterol (p<0.0001) [see Table 2]. There was no attenuation of the bronchodilator effect over time. Bevespi Aerosphere also showed improvements in peak FEV1 within 2 hours post-dose over 24 weeks relative to placebo, glycopyrronium and formoterol (p<0.0001) [see Table 2].
There were improvements in trough FEV1 irrespective of age, sex, degree of airflow limitation, baseline symptoms, smoking status, or inhaled corticosteroid use.
Symptomatic outcomes
Breathlessness
In PINNACLE 1 and PINNACLE 2, Bevespi Aerosphere provided improvements in breathlessness as demonstrated by Self-administered Computerised Transitional Dyspnoea Index (SAC TDI) focal score over 24 weeks compared to placebo and glycopyrronium (see Table 2). Improvements compared to formoterol were observed in PINNACLE 2 (see Table 2). In PINNACLE 4, Bevespi Aerosphere provided improvements in breathlessness as demonstrated by TDI focal score over 24 weeks compared to placebo and glycopyrronium (see Table 2).
Health-related quality of life
In PINNACLE 1, PINNACLE 2 and PINNACLE 4, Bevespi Aerosphere provided an improvement in disease-specific health-related quality of life, as indicated by a reduction in the St George's Respiratory Questionnaire (SGRQ) total score over 24 weeks compared to placebo and glycopyrronium (see Table 2). There were improvements compared to formoterol in PINNACLE 1 and PINNACLE 2.
Table 2 Lung function, symptomatic and health related quality of life outcomes over 24 weeks
| Treatment comparisons with Bevespi Aersophere | Treatment difference (95% confidence intervals, p-value) |
| Trough FEV1 (ml)a | Peak FEV1 (ml) | SAC-TDI / TDI Focal Scoreb | SGRQ total score | Daily rescue Ventolin (inhalations/day)c |
| PINNACLE 1 | |
| Bevespi Aerosphere (N=526) vs placebo (N=219) | 158 (132, 183) p<0.0001 | 288 (259, 317) p<0.0001# | 0.47 (0.21, 0.72) p=0.0003 | -2.39 (-4.07, -0.71) p=0.0053# | -1.08 (-1.43, -0.73) p<0.0001# |
| Bevespi Aerosphere (N=526) vs Glycopyrronium (N=451) | 60 (39, 80) p<0.0001 | 123 (100, 146) p<0.0001# | 0.27 (0.07, 0.47) p=0.0086# | -1.90 (-3.24, 0.57) p=0.0052# | -0.26 (-0.53, 0.01) p=0.0619 |
| Bevespi Aerosphere (N=526) vs formoterol fumarate (N=449) | 64 (44, 84) p<0.0001 | 81 (59, 104) p<0.0001# | 0.16 (-0.03, 0.36) p=0.1060 | -0.75 (-2.08, 0.57) p=0.2640 | -0.01 (-0.27, 0.26) p=0.9683 |
| PINNACLE 2 | |
| Bevespi Aerosphere (N=510) vs placebo (N=223) | 129 (103, 155) p<0.0001 | 278 (249, 308) p<0.0001 | 0.33 (0.11, 0.56) p=0.0041 | -1.66 (-3.34, 0.02) p=0.0534 | -1.04 (-1.37, -0.72) p<0.0001 |
| Bevespi Aerosphere (N=510) vs Glycopyrronium (N=439) | 55 (34, 76) p<0.0001 | 129 (106, 153) p<0.0001 | 0.21 (0.03, 0.40) p=0.0199 | -1.28 (-2.62, 0.06) p=0.0605 | -0.57 (-0.83, -0.31) p<0.0001 |
| Bevespi Aerosphere (N=510) vs formoterol fumarate (N=437) | 57 (36, 78) p<0.0001 | 76 (52, 99) p<0.0001 | 0.28 (0.10, 0.46) p=0.0028 | -1.22 (-2.56, 0.13) p=0.0760 | -0.29 (-0.55, -0.03) p=0.0274# |
| PINNACLE 4 | | | | | |
| Bevespi Aerosphere (N=551) vs placebo (N=235) | 155 (129, 180) p<0.0001 | 293 (265, 321) p<0.0001 | 0.80 (0.47, 1.13) p<0.0001 | -3.50 (-5.18, -1.82) p<0.0001 | -0.98 (-1.47, -0.49) p<0.0001 |
| Bevespi Aerosphere (N=551) vs glycopyrronium (N=474) | 55 (35, 76) p<0.0001 | 141 (119, 163) p<0.0001 | 0.33 (0.07, 0.59) p=0.0125 | -1.62 (-2.94, -0.30) p=0.0165 | -0.77 (-1.16, -0.38) p<0.0001 |
| Bevespi Aerosphere (N=551) vs formoterol fumarate (N=480) | 72 (52, 92) p<0.0001 | 97 (75, 119) p<0.0001 | 0.15 (-0.11, 0.41) p=0.2530 | -0.27 (-1.59, 1.05) p=0.6908 | -0.41 (-0.80, -0.03) p=0.0345# |
N number in Intent to Treat population
a primary endpoint in all studies
b PINNACLE 1 and PINNACLE 2 used SAC-TDI. PINNACLE 4 used TDI. SAC-TDI was a primary endpoint in PINNACLE 1 and PINNACLE 2 only
c From the Rescue Ventolin User Population in PINNACLE 4
# A hierarchical statistical testing procedure was used in this study and this comparison was below a comparison that did not achieve statistical significance. Therefore, statistical significance on this comparison cannot be inferred.
COPD exacerbations
The individual studies were not specifically designed to evaluate the effect of treatments on COPD exacerbations and patients were withdrawn from the studies if a severe exacerbation or more than 2 moderate exacerbations occurred.
Paediatric population
The European Medicines Agency has waived the obligation to submit the results of studies with Bevespi Aerosphere in all subsets of the paediatric population in COPD (see section 4.2 for information on paediatric use).