Randomised, Double-Blind, Placebo-Controlled, Parallel-Group, Multi-centre, Dose Ranging Study to Evaluate the Efficacy and Safety of Losmapimod Tablets Administered Twice Daily Compared With Placebo for 24 Weeks in Adult Subjects With Chronic Obstructive Pulmonary Disease (COPD).

Exercise tolerance was assessed using the 6MWD. If a participant was recorded as having used supplemental oxygen or a walking aid (including sitting down then continuing walking) or a technical problem during a 6MWD then that walk was considered as invalid; otherwise the 6MWD was considered as valid. The baseline 6MWD value was defined as the longest distance walked, for a valid walk, at Visit 2. Variability between the distances walked during the first six-minute walk test (6MWD1) and the second six-minute walk test (6MWD2) being compared was defined as: Variability = [100 x (6MWD2 - 6MWD1)]/6MWD1. Change from Baseline was calculated as the endpoint value minus the Baseline value. Baseline visit was Visit 2 (Week 0).

Pulmonary function was measured by FEV1, defined as the maximal amount of air that can be forcefully exhaled in one second. Pre and post-bronchodilator spirometry was performed by the investigator. For post-bronchodilator measurements, spirometry was performed 10-15 minutes after inhalation of 400/360 microgram (mcg) of salbutamol/albuterol. Participants were asked to withhold all bronchodilator therapy (regularly used ipratropium bromide and salbutamol/albuterol used as required) for at least 4 hours prior to spirometric testing. The change from Baseline was calculated by subtracting the Baseline value from the individual post-randomization values.Baseline visit was Visit 2 (Week 0).

FVC is the total amount of air exhaled during the lung function test. and post-bronchodilator spirometry was performed by the investigator. For post-bronchodilator measurements, spirometry was performed 10-15 minutes after inhalation of 400/360 microgram (mcg) of salbutamol/albuterol. Participants were asked to withhold all bronchodilator therapy (regularly used ipratropium bromide and salbutamol/albuterol used as required) for at least 4 hours prior to spirometric testing. The change from Baseline was calculated by subtracting the Baseline value from the individual post-randomization values.. Baseline visit was Visit 2 (Week 0).

The SGRQ-C questionnaire had 14 questions of COPD and participant had to rate each question. These 14 questions were separated to evaluate the three components of SGRQ-C. These three components were symptom component (question 1 to 7), activity component (question 9 and 12) and impact component (question 8, 10, 11, 13 and 14). The total score is 0 to 100 with a higher score indicating greater impairment of health status. Change from Baseline was calculated as the specified time point value minus the Baseline value. Baseline visit was Visit 2 (Week 0).

A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains). Plethysmography was used to assess IC, RV, TGV at FRC, SLV, and TLC. Change from Baseline was calculated as the endpoint value minus the Baseline value. Baseline visit was Visit 2 (Week 0).

Least square mean ratio to Baseline of plasma fibrinogen was assessed at Week 4, 8, 12, 24. Blood samples for biomarker analysis were taken at selected visits.

Least square mean ratio to Baseline of HsCRP was assessed at Week 4, 8, 12, 24. Blood samples for biomarker analysis were taken at selected visits.

An exacerbation of COPD is defined as a worsening of COPD symptoms requiring changes to normal treatment (other than increased use of relief salbutamol/albuterol) including antimicrobial therapy, short courses of oral steroids, other bronchodilator therapy and/or emergency treatment or hospitalization.