Trial Outcomes & Findings for A Study of RPL554 Drug Administered by Metered Dose Inhaler to Treat Chronic Obstructive Pulmonary Disease (NCT NCT04091360)

NCT ID: NCT04091360

Last Updated: 2022-09-21

Results Overview

Area under the curve from 0 to 12 hours after single dose drug administration.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

40 participants

Primary outcome timeframe

Day 1

Results posted on

2022-09-21

Participant Flow

40 subjects enrolled for Part A and eligible to continue into Part B.

Part A: 40 Patients randomized equally to receive a single dose of RPL554 (0.10, 0.30, 1, 3, or 6 mg) or matching placebo via pressurized metered dose inhaler (pMDI). Patients continued to Part B after Part A completed. Part B: 28 Patients continued to Part B and randomly assigned to 1 of 4 treatment sequences in a crossover design (1-week treatment periods separated by 7-10 day washout). Each sequence included twice daily RPL554 (0.30, 1, or 3 mg) or matching placebo via pMDI.

Participant milestones

Participant milestones
Measure
0.10 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
0.30 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
1 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
3 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
6 mg/Part A
Part A: single dose of RPL554 via pMDI (single-blind)
Placebo/Part A
Part A: single dose via pMDI (double-blind)
Seq 1/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 1= RPL554 0.30 mg / RPL554 3 mg / Placebo / RPL554 1 mg
Seq 2/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 2= RPL554 1 mg / Placebo / RPL554 3 mg / RPL554 0.30 mg.
Seq 3/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 3= RPL554 3 mg / RPL554 1 mg / RPL554 0.30 mg / Placebo.
Seq 4/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 4= Placebo / RPL554 0.30 mg / RPL554 1 mg / RPL554 3 mg.
Part A (R, PC, PG) Single Dose
STARTED
6
7
6
7
7
7
0
0
0
0
Part A (R, PC, PG) Single Dose
COMPLETED
6
7
6
7
7
7
0
0
0
0
Part A (R, PC, PG) Single Dose
NOT COMPLETED
0
0
0
0
0
0
0
0
0
0
Part B (R, PC, XO) Twice Daily for 7 Day
STARTED
0
0
0
0
0
0
8
7
7
6
Part B (R, PC, XO) Twice Daily for 7 Day
COMPLETED
0
0
0
0
0
0
6
6
6
4
Part B (R, PC, XO) Twice Daily for 7 Day
NOT COMPLETED
0
0
0
0
0
0
2
1
1
2

Reasons for withdrawal

Reasons for withdrawal
Measure
0.10 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
0.30 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
1 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
3 mg/Part A
Part A: single dose of RPL554 via pMDI (double-blind)
6 mg/Part A
Part A: single dose of RPL554 via pMDI (single-blind)
Placebo/Part A
Part A: single dose via pMDI (double-blind)
Seq 1/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 1= RPL554 0.30 mg / RPL554 3 mg / Placebo / RPL554 1 mg
Seq 2/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 2= RPL554 1 mg / Placebo / RPL554 3 mg / RPL554 0.30 mg.
Seq 3/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 3= RPL554 3 mg / RPL554 1 mg / RPL554 0.30 mg / Placebo.
Seq 4/Part B
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over. Seq 4= Placebo / RPL554 0.30 mg / RPL554 1 mg / RPL554 3 mg.
Part B (R, PC, XO) Twice Daily for 7 Day
Adverse Event
0
0
0
0
0
0
0
0
1
1
Part B (R, PC, XO) Twice Daily for 7 Day
Physician Decision
0
0
0
0
0
0
1
1
0
0
Part B (R, PC, XO) Twice Daily for 7 Day
Withdrawal by Subject
0
0
0
0
0
0
1
0
0
1

Baseline Characteristics

A Study of RPL554 Drug Administered by Metered Dose Inhaler to Treat Chronic Obstructive Pulmonary Disease

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
n=7 Participants
Single dose of placebo via pMDI (double-blind)
Total
n=40 Participants
Total of all reporting groups
Age, Continuous
66.8 years
STANDARD_DEVIATION 4.92 • n=5 Participants
71.4 years
STANDARD_DEVIATION 1.27 • n=7 Participants
64.3 years
STANDARD_DEVIATION 7.87 • n=5 Participants
67.1 years
STANDARD_DEVIATION 6.72 • n=4 Participants
63.1 years
STANDARD_DEVIATION 8.71 • n=21 Participants
64.4 years
STANDARD_DEVIATION 6.60 • n=8 Participants
66.3 years
STANDARD_DEVIATION 6.67 • n=8 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
4 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
2 Participants
n=21 Participants
3 Participants
n=8 Participants
16 Participants
n=8 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
4 Participants
n=4 Participants
5 Participants
n=21 Participants
4 Participants
n=8 Participants
24 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
n=5 Participants
7 Participants
n=7 Participants
6 Participants
n=5 Participants
7 Participants
n=4 Participants
7 Participants
n=21 Participants
7 Participants
n=8 Participants
40 Participants
n=8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
White
6 Participants
n=5 Participants
7 Participants
n=7 Participants
6 Participants
n=5 Participants
7 Participants
n=4 Participants
7 Participants
n=21 Participants
7 Participants
n=8 Participants
40 Participants
n=8 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=8 Participants
0 Participants
n=8 Participants
Region of Enrollment
United Kingdom
6 participants
n=5 Participants
7 participants
n=7 Participants
6 participants
n=5 Participants
7 participants
n=4 Participants
7 participants
n=21 Participants
7 participants
n=8 Participants
40 participants
n=8 Participants

PRIMARY outcome

Timeframe: Day 1

Population: Pharmacokinetic (PK) Analysis Set in Part A: all randomized patients who had blood sampling performed after the single dose of RPL554 and had evaluable PK parameter data. The PK Analysis Set included the 33 patients who received RPL554 in Part A but not the 7 patients in the placebo group.

Area under the curve from 0 to 12 hours after single dose drug administration.

Outcome measures

Outcome measures
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part A: Pharmacokinetic Parameter AUC0-12
175 h*pg/mL
Standard Deviation 96.7
611 h*pg/mL
Standard Deviation 183
1550 h*pg/mL
Standard Deviation 443
5860 h*pg/mL
Standard Deviation 3120
9360 h*pg/mL
Standard Deviation 8100

PRIMARY outcome

Timeframe: Day 1

Population: Pharmacokinetic (PK) Analysis Set in Part A: all randomized patients who had blood sampling performed after the single dose of RPL554 and had evaluable PK parameter data. The PK Analysis Set included the 33 patients who received RPL554 in Part A but not the 7 patients in the placebo group.

Pharmacokinetic Parameter Cmax after a Single Dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part A: Pharmacokinetic Parameter Cmax
39.4 pg/mL
Standard Deviation 16.4
138 pg/mL
Standard Deviation 40.9
467 pg/mL
Standard Deviation 57.8
1520 pg/mL
Standard Deviation 1050
2360 pg/mL
Standard Deviation 1430

PRIMARY outcome

Timeframe: Day 1

Population: Pharmacokinetic (PK) Analysis Set in Part A: all randomized patients who had blood sampling performed after the single dose of RPL554 and had evaluable PK parameter data. The PK Analysis Set included the 33 patients who received RPL554 in Part A but not the 7 patients in the placebo group.

Area under the curve at maximum concentration 0-24 hrs after single dose drug administration

Outcome measures

Outcome measures
Measure
0.10 mg
n=5 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part A: Pharmacokinetic Parameter AUC0-t
208 h*pg/mL
Standard Deviation 119
692 h*pg/mL
Standard Deviation 229
1680 h*pg/mL
Standard Deviation 559
6800 h*pg/mL
Standard Deviation 3770
10800 h*pg/mL
Standard Deviation 10100

PRIMARY outcome

Timeframe: Day 1

Population: Pharmacokinetic (PK) Analysis Set in Part A: all randomized patients who had blood sampling performed after the single dose of RPL554 and had evaluable PK parameter data. The PK Analysis Set included the 33 patients who received RPL554 in Part A but not the 7 patients in the placebo group.

RPL554 Plasma Pharmacokinetics concentration after single dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=4 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part A: RPL554 Plasma Pharmacokinetic Parameter (Half-life)
6.31 h
Standard Deviation 5.18
5.32 h
Standard Deviation 3.36
3.47 h
Standard Deviation 1.44
5.62 h
Standard Deviation 1.7
4.44 h
Standard Deviation 2.03

PRIMARY outcome

Timeframe: Day 7

Population: Full Analysis Set = number of patients with at least one on treatment value who contributed to the model estimation.

Change from Baseline FEV1 to Peak FEV1 (over 4 hours) after morning dosing on Day 7

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Peak FEV1 (Over 4 Hours) on Day 7
0.189 L
Standard Deviation 0.1624
0.261 L
Standard Deviation 0.1597
0.310 L
Standard Deviation 0.1511
-0.016 L
Standard Deviation 0.1485

SECONDARY outcome

Timeframe: Day 1

Population: Full analysis includes patients with values at baseline and peak FEV1 (0-4h).

Change from Baseline FEV1 to Peak FEV1 (over 4 hours) After Single Dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
n=7 Participants
Single dose of placebo via pMDI (double-blind)
Part A: Change From Baseline in Peak FEV1 (Over 4 Hours) After 1 Dose
0.133 L
Standard Deviation 0.1144
0.264 L
Standard Deviation 0.1012
0.255 L
Standard Deviation 0.0994
0.332 L
Standard Deviation 0.2095
0.477 L
Standard Deviation 0.1469
0.086 L
Standard Deviation 0.0694

SECONDARY outcome

Timeframe: Day 1

Population: Full analysis set. () () () () () ()

Change from Baseline FEV1 to Average FEV1 (over 4 hours) After Single Dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
n=7 Participants
Single dose of placebo via pMDI (double-blind)
Part A: Change From Baseline in Average FEV1 (Over 4 Hours) After 1 Dose
0.058 L
Standard Deviation 0.0889
0.161 L
Standard Deviation 0.0650
0.153 L
Standard Deviation 0.0653
0.240 L
Standard Deviation 0.1677
0.334 L
Standard Deviation 0.1147
-0.011 L
Standard Deviation 0.0805

SECONDARY outcome

Timeframe: Day 1

Population: Full analysis set.

Change from Baseline FEV1 to Average FEV1 (over 12 hours) After Single Dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=6 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=7 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
n=7 Participants
Single dose of RPL554 via pMDI (single-blind)
Placebo
n=7 Participants
Single dose of placebo via pMDI (double-blind)
Part A: Change From Baseline in Average FEV1 (Over 12 Hours) After 1 Dose
0.018 L
Standard Deviation 0.0643
0.061 L
Standard Deviation 0.0429
0.010 L
Standard Deviation 0.0408
0.121 L
Standard Deviation 0.1321
0.190 L
Standard Deviation 0.1053
-0.031 L
Standard Deviation 0.0740

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent hematology abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent blood chemistry abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent urinalysis abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal vital signs (pulse rate in bpm)

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal vital signs (blood pressure in mm Hg)

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal ECG parameters, QTcF in msec

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal ECG parameters, heart rate in bpm

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Day 7

Population: Full analysis set.

Change from baseline in average FEV1 (over 4 hours) on Day 7 after morning dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Average FEV1 (Over 4 Hrs) After 7 Days
0.083 L
Standard Deviation 0.1223
0.161 L
Standard Deviation 0.1686
0.206 L
Standard Deviation 0.1470
-0.095 L
Standard Deviation 0.1702

SECONDARY outcome

Timeframe: Day 7

Population: Full analysis Set.

Change from baseline FEV1 in average FEV1 (over 12 hours) on Day 7 after morning dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Average FEV1 (Over 12 Hours) After 7 Days
0.008 L
Standard Deviation 0.1421
0.075 L
Standard Deviation 0.1472
0.085 L
Standard Deviation 0.1411
-0.112 L
Standard Deviation 0.1662

SECONDARY outcome

Timeframe: Day 7

Population: Full analysis set.

Change from Baseline FEV1 to Morning Trough FEV1 on Day 7 after morning dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Trough FEV1 After 7 Days
-0.051 L
Standard Deviation 0.1254
-0.017 L
Standard Deviation 0.1783
0.013 L
Standard Deviation 0.1631
-0.097 L
Standard Deviation 0.1389

SECONDARY outcome

Timeframe: Day 1

Population: Full analysis set.

Change from baseline FEV1 in peak FEV1 (over 4 hours) after first dose

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Peak FEV1 (Over 4 Hours) After 1st Dose
0.253 L
Standard Deviation 0.0772
0.311 L
Standard Deviation 0.1532
0.337 L
Standard Deviation 0.1108
0.079 L
Standard Deviation 0.0914

SECONDARY outcome

Timeframe: Day 1

Population: Full analysis set.

Change from baseline FEV1 in average FEV1 (over 4 hours) on Day 1

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Average FEV1 (Over 4 Hours) After 1st Dose
0.144 L
Standard Deviation 0.0762
0.204 L
Standard Deviation 0.1162
0.224 L
Standard Deviation 0.0905
-0.017 L
Standard Deviation 0.1284

SECONDARY outcome

Timeframe: Day 1

Population: number of patients with at least one on treatment value who contributed to the model.

Change from baseline FEV1 in average FEV1 (over 12 hours) on Day 1

Outcome measures

Outcome measures
Measure
0.10 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
n=23 Participants
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: Change From Baseline in Average FEV1 (Over 12 Hours) After 1st Dose
0.047 L
Standard Deviation 0.0914
0.102 L
Standard Deviation 0.1306
0.085 L
Standard Deviation 0.0659
-0.058 L
Standard Deviation 0.1444

SECONDARY outcome

Timeframe: Day 1

Population: Patients with onset of action

Determination of onset of action (\>10% increase in FEV1 from pre- to post-first dose, censored at 120 minutes) on Day 1

Outcome measures

Outcome measures
Measure
0.10 mg
n=18 Participants
Single dose of RPL554 via pMDI (double-blind)
0.30 mg
n=19 Participants
Single dose of RPL554 via pMDI (double-blind)
1 mg
n=22 Participants
Single dose of RPL554 via pMDI (double-blind)
3 mg
Single dose of RPL554 via pMDI (double-blind)
6 mg
Single dose of RPL554 via pMDI (single-blind)
Placebo
Single dose of placebo via pMDI (double-blind)
Part B: RPL554 Plasma Pharmacokinetic Parameter (Onset of Action)
37.0 mins
Interval 3.0 to 120.0
27.5 mins
Interval 5.0 to 120.0
19.0 mins
Interval 5.0 to 91.0

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent hematology abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent blood chemistry abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 1 day

Number of patients with treatment-emergent urinalysis abnormal laboratory assessments

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal vital signs (pulse rate in bpm)

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 1

Number of patients with treatment-emergent abnormal vital signs (blood pressure in mm Hg)

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 70

Number of patients with treatment-emergent abnormal ECG parameters, QTcF in msec

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Start of treatment to day 70

Number of patients with treatment-emergent abnormal ECG parameters, heart rate in bpm

Outcome measures

Outcome data not reported

Adverse Events

0.10 mg/Part A

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

0.30 mg/Part A

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

1 mg/Part A

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

3 mg/Part A

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

6 mg/Part A

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Placebo/Part A

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Part B/0.30 mg

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Part B/1 mg

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Part B/3 mg

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Part B/Placebo

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
0.10 mg/Part A
n=6 participants at risk
Part A: single dose of RPL554 via pMDI (double-blind)
0.30 mg/Part A
n=7 participants at risk
Part A: single dose of RPL554 via pMDI (double-blind)
1 mg/Part A
n=6 participants at risk
Part A: single dose of RPL554 via pMDI (double-blind)
3 mg/Part A
n=7 participants at risk
Part A: single dose of RPL554 via pMDI (double-blind)
6 mg/Part A
n=7 participants at risk
Part A: single dose of RPL554 via pMDI (single-blind)
Placebo/Part A
n=7 participants at risk
Part A: single dose via pMDI (double-blind)
Part B/0.30 mg
n=24 participants at risk
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over.
Part B/1 mg
n=23 participants at risk
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over.
Part B/3 mg
n=23 participants at risk
Part B: 7 day, twice daily dose of RPL554 via pMDI (double-blind) complete block, cross-over.
Part B/Placebo
n=25 participants at risk
Part B: 7 day, twice daily dose of placebo via pMDI (double-blind) complete block, cross-over.
Skin and subcutaneous tissue disorders
Dermatitis contact
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Infections and infestations
Nasopharyngitis
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Infections and infestations
Rhinitis
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Infections and infestations
Upper respiratory tract infection
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Nervous system disorders
Headache
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
16.7%
1/6 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
28.6%
2/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
4.2%
1/24 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Nervous system disorders
Syncope
16.7%
1/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Injury, poisoning and procedural complications
Contusion
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
COPD
16.7%
1/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.0%
1/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
Dry throat
16.7%
1/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
Productive cough
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
14.3%
1/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
4.2%
1/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.0%
1/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
Haemoptysis
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Respiratory, thoracic and mediastinal disorders
Sputum increased
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.0%
1/25 • Part A: 24 hours. Part B: Approximately 70 days
Nervous system disorders
Dizziness postural
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
4.2%
1/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Gastrointestinal disorders
Dental caries
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Gastrointestinal disorders
Flatulence
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.0%
1/25 • Part A: 24 hours. Part B: Approximately 70 days
General disorders
Catheter site bruise
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Infections and infestations
Kidney infection
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Renal and urinary disorders
Renal cyst
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days
Reproductive system and breast disorders
Dysmenorrhoea
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/6 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/7 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/24 • Part A: 24 hours. Part B: Approximately 70 days
4.3%
1/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/23 • Part A: 24 hours. Part B: Approximately 70 days
0.00%
0/25 • Part A: 24 hours. Part B: Approximately 70 days

Additional Information

Medical Science Director

Verona Pharma

Phone: 6464130307

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place