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Dose Ranging Study of RPL554 in Chronic Obstructive Pulmonary Disease (COPD) Patients

COPD Clinical Trial

Official title:
Phase IIb, Randomized, Double Blind, Placebo Controlled, Dose Ranging Study to Assess the Effect of RPL554 in Patients With Moderate to Severe COPD.

Clinical Trial Summary

The study investigates the effect of 4 weeks of twice daily treatment of four different doses of RPL554 (a phosphodiesterase [PDE]3/4 inhibitor) or placebo in patients with moderate to severe chronic obstructive pulmonary disease (COPD). Patients will be equally allocated to one of the five treatment options.

Clinical Trial Description

RPL554 is a dual inhibitor of PDE3 and PDE4 which are known to have a role in modulating the inflammatory airway response in respiratory diseases, including COPD. PDE3 inhibitors act as bronchodilators whilst PDE4 inhibitors have anti-inflammatory properties and there is also evidence to suggest that combined inhibition of PDE3 and PDE4 can have additive or synergistic anti-inflammatory and bronchodilator effects. PDE4 inhibitors (administered orally) have, however been associated with unfavorable gastrointestinal side effects such as nausea, emesis, diarrhea, abdominal pain, loss of appetite and weight loss. Dual PDE3/PDE4 inhibitors (administered by inhalation) have exhibited both bronchodilator and anti-inflammatory actions, with a more favorable side effect profile. It is plausible that increased efficacy with reduced side effects may be achievable with administration of a dual PDE3/4 inhibitor by the inhaled route compared to orally administered PDE3 or PDE4 inhibitors.

The purpose of this study is to investigate the dose response of RPL554 in patients with COPD over 4 weeks. This length of time should allow for study of the bronchodilator response, measured predominantly by the peak forced expiratory volume in one second (FEV1), and the anti-inflammatory response, as measured predominantly by trough FEV1. ;

Study Design

Related Conditions & MeSH terms

  • COPD
  • Pulmonary Disease, Chronic Obstructive
Clinical Trial Details
NCT number NCT03443414
Study type Interventional
Source Verona Pharma plc
Contact
Status Completed
Phase Phase 2
Start date June 1, 2017
Completion date February 7, 2018
View Details
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