Bronchodilator Effect of RPL554 Administered in Addition to Tiotropium/Olodaterol in Patients With COPD

DRUG: RPL554 Suspension
DRUG: Placebo
DRUG: Tiotropium/olodaterol (Respimat)

PHASE2

Phase

COMPLETED

Status

Enrollment

INDUSTRY

Sponsor class

Conditions

Verona Pharma, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA