Verona Pharma to Present Additional Analysis of Phase 3 ENHANCE-1 Study in COPD at ERS International Congress 2023

Substantial reductions in rate and risk of exacerbations support potential of ensifentrine, an investigational, novel, selective, dual inhibitor of PDE3 and PDE4

LONDON and RALEIGH, N.C., Sept. 06, 2023 (GLOBE NEWSWIRE) — Verona Pharma plc (Nasdaq: VRNA) (“Verona Pharma” or the “Company”), announces an oral presentation on an additional analysis from its successful Phase 3 ENHANCE-1 study with ensifentrine for the treatment of chronic obstructive pulmonary disease (“COPD”) will be presented at the European Respiratory Society (“ERS”) International Congress 2023. The abstract is available to conference attendees on the ERS website and will be published in an upcoming issue of the peer reviewed publication, European Respiratory Journal.

The presentation will highlight additional analyses of the ENHANCE-1 24-week exacerbation data which demonstrated treatment with ensifentrine resulted in a substantial decrease in the rate and risk of moderate COPD exacerbations as well as moderate and severe COPD exacerbations. Furthermore, it will highlight the impact of ensifentrine treatment on healthcare resource utilization related to COPD including fewer physician’s office visits, emergency department visits and hospitalizations compared with placebo treatment.

Henrik Watz, MD, Respiratory Physician at The Pulmonary Research Institute at LungenClinic Grosshansdorf, Germany, commented: “This exciting analysis from the ENHANCE-1 study further demonstrates ensifentrine’s potential to become a first-in-class bronchodilator and non-steroidal anti-inflammatory therapy for COPD. The reduction in the rate and risk of exacerbations is impressive and, combined with the data showing substantial reductions in healthcare resource utilization, these data support ensifentrine’s potential, if approved, to provide meaningful benefits for COPD patients.”

Details of Verona Pharma’s presentation are listed below and linked to the ERS website:

Oral presentation 2602: Inhaled Ensifentrine, decreased healthcare research utilization and reduced moderate exacerbation rate and risk in COPD over 24 weeks
Participant: Henrik Watz, MD, Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North, German Center for Lung Research, Grosshansdorf, Germany.
Session 269: New mechanisms and novel insights into chronic obstructive pulmonary disease and chronic cough

For further information please contact:

Verona Pharma plc US Tel: +1-833-417-0262
UK Tel: +44 (0)203 283 4200
Victoria Stewart, Senior Director of Investor
Relations and Communications
Argot Partners
US Investor Enquiries
Tel: +1-212-600-1902
Ten Bridge Communications
International / US Media Enquiries
Tel: +1-312-523-5016
Leslie Humbel  

About Verona Pharma

Verona Pharma is a clinical-stage biopharmaceutical company focused on developing and commercializing innovative therapies for the treatment of chronic respiratory diseases with significant unmet medical needs. If successfully developed and approved, Verona Pharma’s product candidate, ensifentrine, has the potential to be the first non-steroidal therapy for the treatment of respiratory diseases that combines bronchodilator and anti-inflammatory activities in one molecule. The Company has evaluated nebulized ensifentrine in its Phase 3 clinical program ENHANCE (“Ensifentrine as a Novel inHAled Nebulized COPD thErapy”) for COPD maintenance treatment. Ensifentrine met the primary endpoint in both ENHANCE-1 and ENHANCE-2 trials demonstrating statistically significant and clinically meaningful improvements in lung function. In addition, ensifentrine substantially reduced the rate and risk of COPD exacerbations in pooled analysis from ENHANCE-1 and ENHANCE-2. In the second quarter of 2023, Verona Pharma submitted a New Drug Application (“NDA”) to the US Food and Drug Administration (“FDA”) for ensifentrine for the maintenance treatment of patients with COPD. Two additional formulations of ensifentrine have been evaluated in Phase 2 trials for the treatment of COPD: dry powder inhaler (“DPI”) and pressurized metered-dose inhaler (“pMDI”). Ensifentrine has potential applications in cystic fibrosis, asthma and other respiratory diseases. For more information, please visit

Forward-Looking Statements

This press release contains forward-looking statements. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including, but not limited to, statements relating to the timing of the FDA’s decisions on the acceptance and approval of the NDA for ensifentrine, or at any other time, statements regarding the potential for ensifentrine to be the first novel mechanism available for the treatment of COPD in over 10 years, the first therapy for the treatment of respiratory diseases to combine bronchodilator and non-steroidal anti-inflammatory activities in one molecule, and the potential to change the treatment paradigm for COPD patients, the potential of ensifentrine in the treatment of cystic fibrosis, asthma and other respiratory diseases, and the potential of the DPI and pMDI formulations of ensifentrine.

These forward-looking statements are based on management’s current expectations. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from our expectations expressed or implied by the forward-looking statements, including, but not limited to, the following: our limited operating history; our need for additional funding to complete development and commercialization of ensifentrine, which may not be available and which may force us to delay, reduce or eliminate our development or commercialization efforts; the reliance of our business on the success of ensifentrine, our only product candidate under development; economic, political, regulatory and other risks involved with international operations; the lengthy and expensive process of clinical drug development, which has an uncertain outcome; serious adverse, undesirable or unacceptable side effects associated with ensifentrine, which could adversely affect our ability to develop or commercialize ensifentrine; we may not be successful in developing ensifentrine for multiple indications; our ability to obtain approval for and commercialize ensifentrine in multiple major pharmaceutical markets; misconduct or other improper activities by our employees, consultants, principal investigators, third-party service providers and licensees; our inability to realize the anticipated benefits under licenses granted by us to third parties to develop and commercialize ensifentrine, our future growth and ability to compete depends on retaining our key personnel and recruiting additional qualified personnel; material differences between our “top-line” data and final data; our reliance on third parties, including clinical research organizations, clinical investigators, manufacturers and suppliers, and the risks related to these parties’ ability to successfully develop and commercialize ensifentrine; lawsuits related to patents covering ensifentrine and the potential for our patents to be found invalid or unenforceable; lawsuits related to our licensing of patents and know-how with third parties for the development and commercialization of ensifentrine; changes in our tax rates, unavailability of certain tax credits or reliefs or exposure to additional tax liabilities or assessments could affect our profitability, and audits by tax authorities could result in additional tax payments for prior periods; and our vulnerability to natural disasters, global economic factors, geo-political actions and unexpected events, including health epidemics or pandemics. These and other important factors under the caption “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022, as updated in our Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 and our other reports filed with the SEC, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Any such forward-looking statements represent management’s estimates as of the date of this press release. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this press release.

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