News
Verona Pharma Announces Ensifentrine Meets Primary Endpoint in Phase 3 ENHANCE-2 Trial for COPD
LONDON and RALEIGH, N.C., Aug. 09, 2022 (GLOBE NEWSWIRE) -- Verona Pharma plc (Nasdaq: VRNA) (“Verona Pharma” or the “Company”), today announces its top-line Phase 3 ENHANCE-2 (“Ensifentrine as a Novel inHAled Nebulized COPD thErapy”) trial results evaluating nebulized ensifentrine for the maintenance treatment of chronic obstructive pulmonary disease (“COPD”). The ENHANCE-2 trial has successfully met its primary endpoint, as well as secondary endpoints demonstrating improvements in lung function, and significantly reduced the rate and risk of COPD exacerbations.
Ensifentrine is a first-in-class, dual inhibitor of the enzymes phosphodiesterase 3 and 4 (“PDE3” and “PDE4”) combining bronchodilator and anti-inflammatory activities in one compound.
Highlights
- Study population (n=789):
- Subject demographics and disease characteristics were well balanced between treatment groups.
- Approximately 52% of subjects received background COPD therapy, either a long-acting muscarinic antagonist (“LAMA”) or a long-acting beta-agonist (“LABA”). Additionally, approximately 15% of all subjects received inhaled corticosteroids (“ICS”) with concomitant LAMA or LABA.
- Primary endpoint met (FEV1* AUC 0-12 hr):
- Placebo corrected, change from baseline in average FEV1 area under the curve 0-12 hours post dose at week 12 was 94 mL (p<0.0001) for ensifentrine.
- Statistically significant and clinically meaningful improvements with ensifentrine demonstrated across all subgroups including gender, age, smoking status, COPD severity, background medication, ICS use, chronic bronchitis, FEV1 reversibility, and geographic region.
- Secondary endpoints of lung function met:
- Placebo corrected, increase in peak FEV1 of 146 mL (p<0.0001) 0-4 hours post dose at week 12.
- Placebo corrected, increase in morning trough FEV1 of 49 mL (p=0.0017) at week 12, confirming twice daily dosing regimen.
- Exacerbation rate reduced:
- Subjects receiving ensifentrine demonstrated a 42% reduction in the rate of moderate to severe COPD exacerbations over 24 weeks compared to those receiving placebo (p=0.0109).
- Treatment with ensifentrine significantly decreased the risk of a moderate/severe exacerbation as measured by time to first exacerbation when compared with placebo by 42% (p=0.0088).
- COPD symptoms and Quality of Life (“QOL”):
- Daily symptoms and QOL as measured by E-RS** Total Score and SGRQ** Total Score in the ensifentrine group improved from baseline to greater than the minimal clinically important difference (“MCID”) of -2 units and -4 units, respectively, at week 24. Improvements in these measures were seen as early as 6 weeks and showed continued improvement at 12 and 24 weeks, numerically exceeding placebo at each measurement. Statistical significance was not achieved due to improvements observed in the placebo group over time.
- Favorable safety profile:
- Ensifentrine was well tolerated with safety results similar to placebo, including occurrence of pneumonia, gastrointestinal and cardiovascular adverse events.
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