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An Evaluation Of PF-03715455 In Moderate To Severe Chronic Obstructive Pulmonary Disease

A Randomized, Double-blind, Placebo-controlled 2-way Crossover Study To Evaluate The Efficacy, Safety And Tolerability Of Pf-03715455 Administered Twice Daily By Inhalation For 4 Weeks In Subjects With Moderate To Severe Chronic Obstructive Pulmonary Disease (Copd)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02366637
Enrollment
13
Registered
2015-02-19
Start date
2015-01-31
Completion date
2015-05-31
Last updated
2016-07-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Keywords

COPD, Sputum

Brief summary

This study proposes to evaluate the safety and efficacy of PF-03715455 in subjects with moderate to severe Chronic Obstructive Pulmonary Disorder.

Interventions

DRUGPlacebo

Orally inhaled placebo twice a day (BID) for 4 weeks

680 micrograms BID, Orally inhaled PF-03715455 for 4 weeks

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
40 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Female subjects of non-childbearing potential and male subjects between the ages of 40 and 80 years, inclusive * Subjects with a diagnosis, for at least 6 months, of moderate to severe COPD and who meet the criteria for Stage II-III disease * Subjects must have a smoking history of at least 10 pack-years

Exclusion criteria

* Current evidence or history within the previous 6 months of any clinically significant disease (other than COPD) or abnormality in the opinion of the Investigator that would put the subject at risk or which would compromise the quality of the study data * A COPD exacerbation requiring treatment with oral steroids or hospitalization for the treatment of COPD within 3 months of Screening

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4Baseline (Day 1), Day 29 (Week 4)FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. Trough FEV1 was obtained from spirometry, performed before study treatment administration.

Secondary

MeasureTime frameDescription
Change From Baseline in Sputum Cell Counts Over 4 WeeksBaseline, Week 1 to Week 4Sputum cell counts included total neutrophils counts and differential (percent \[%\]), total cell count, total macrophage count and differential (%). Change over 4 weeks was to be presented.
Change From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4Baseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4)FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. FVC is the volume of air which can be forcibly exhaled from the lungs after taking the deepest breath possible. FEV1 Baseline and Change at Week 4 are already reported under Primary Outcome Measure 1.
Change From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 WeeksBaseline, Week 1 to Week 4FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. FVC is the volume of air which can be forcibly exhaled from the lungs after taking the deepest breath possible. Change over 4 weeks is presented.
Maximum Observed Plasma Concentrations (Cmax) of PF-03715455Pre-dose on Day 7 and Day 21; post-dose on Day 7 (10 minutes and 1 hour post-dose) and Day 29
Trough Plasma Concentration (Ctrough) of PF-03715455Pre-dose on Day 7 and Day 21; post-dose on Day 7 (10 minutes and 1 hour post-dose) and Day 29Ctrough is the concentration prior to study drug administration.

Other

MeasureTime frameDescription
Number of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsBaseline up to Day 29 (Week 4)Clinically significant ECG findings include: PR interval \>=300 milliseconds (msec) or \>=25% increase when baseline is \>200 msec and \>=50% increase when baseline is less than or equal to 200 msec; QRS interval \>=200 msec or \>=25/50% increase from baseline; QT interval \>=500 msec; corrected QT interval using Fridericia's formula (QTcF) \>=450 msec or \>=30 msec increase.
Change From Baseline in Systolic and Diastolic Blood PressureBaseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4), Day 49 (follow-up)Systolic blood pressure (SBP) and diastolic pressure (DBP) were evaluated in the supine position.
Change From Baseline in Pulse RateBaseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4), Day 49 (follow-up)Pulse rate was evaluated in the supine position.
Number of Participants With Laboratory AbnormalitiesBaseline up to Week 4The following laboratory parameters were analyzed: hematology (hemoglobin, hematocrit, red blood cell \[RBC\] count, RBC morphology, platelet count, white blood cell \[WBC\] count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); blood chemistry (blood urea nitrogen \[BUN\], creatinine, glucose, calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase \[AST\], alanine aminotransferase \[ALT\], total bilirubin, direct and indirect bilirubin, gamma-glutamyl transpeptidase \[GGT\], alkaline phosphatase, uric acid, albumin, total protein, high sensitivity C-reactive protein \[CRP\]); urinalysis (specific gravity, pH, glucose, protein, blood, ketones, nitrites, leukocyte esterase, microscopy \[only if urine dipstick was positive for blood or protein\]).
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)Baseline up to Day 29 (Week 4)An AE was any untoward medical occurrence in a participant who received study drug without regard to causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to Day 29 that were absent before treatment or that worsened relative to pre-treatment state. AEs included both SAEs and non-SAEs.

Countries

United Kingdom

Participant flow

Pre-assignment details

Participants were randomly assigned in a 1:1 ratio to receive either PF-03715455 680 micrograms (mcg) twice daily for 4 weeks or matching placebo in Period 1. Participants who were randomized to PF-03715455 during Period 1 then received placebo for 4 weeks during Period 2 after a 28 to 49-day washout period, and vice versa.

Participants by arm

ArmCount
All Participants
All participants who received at least 1 dose of study drug (PF-03715455 or placebo).
13
Total13

Withdrawals & dropouts

PeriodReasonFG000FG001
First Intervention PeriodAdverse Event01
First Intervention PeriodStudy Terminated by Sponsor64
Second Intervention PeriodStudy Terminated by Sponsor11

Baseline characteristics

CharacteristicAll Participants
Age, Continuous62.0 years
STANDARD_DEVIATION 6.5
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
3 / 84 / 7
serious
Total, serious adverse events
0 / 80 / 7

Outcome results

Primary

Change From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4

FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. Trough FEV1 was obtained from spirometry, performed before study treatment administration.

Time frame: Baseline (Day 1), Day 29 (Week 4)

Population: The modified intent-to-treat (mITT) analysis set included all randomized participants who received at least 1 dose of study drug; n=number of participants analyzed in respective arms for category.

ArmMeasureGroupValue (MEAN)Dispersion
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4Baseline (n=8,7)1.368 litersStandard Deviation 0.3534
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4Change at Week 4 (n=6,6)-0.047 litersStandard Deviation 0.0983
PlaceboChange From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4Baseline (n=8,7)1.456 litersStandard Deviation 0.5209
PlaceboChange From Baseline in Trough Forced Expiratory Volume in 1 Second (FEV1) at Week 4Change at Week 4 (n=6,6)0.080 litersStandard Deviation 0.231
Secondary

Change From Baseline in Sputum Cell Counts Over 4 Weeks

Sputum cell counts included total neutrophils counts and differential (percent \[%\]), total cell count, total macrophage count and differential (%). Change over 4 weeks was to be presented.

Time frame: Baseline, Week 1 to Week 4

Population: It was not meaningful to summarize sputum cell counts as there were too few participants in the sputum sub-study and, of those, too few adequate sputum specimens to be meaningfully summarized.

Secondary

Change From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4

FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. FVC is the volume of air which can be forcibly exhaled from the lungs after taking the deepest breath possible. FEV1 Baseline and Change at Week 4 are already reported under Primary Outcome Measure 1.

Time frame: Baseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4)

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug; n=number of participants analyzed in respective arms for category.

ArmMeasureGroupValue (MEAN)Dispersion
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FEV1: Change at Week 1 (n=8,7)-0.065 litersStandard Deviation 0.1231
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FEV1: Change at Week 3 (n=8,7)-0.039 litersStandard Deviation 0.2194
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Baseline (n=8,7)2.535 litersStandard Deviation 0.8639
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 1 (n=8,7)-0.019 litersStandard Deviation 0.1336
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 3 (n=8,7)0.049 litersStandard Deviation 0.21
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 4 (n=6,6)0.091 litersStandard Deviation 0.1661
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 3 (n=8,7)-0.079 litersStandard Deviation 0.1893
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FEV1: Change at Week 1 (n=8,7)-0.001 litersStandard Deviation 0.2559
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 1 (n=8,7)0.090 litersStandard Deviation 0.163
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FEV1: Change at Week 3 (n=8,7)-0.026 litersStandard Deviation 0.1033
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Change at Week 4 (n=6,6)0.233 litersStandard Deviation 0.3014
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) at Weeks 1, 3, and 4FVC: Baseline (n=8,7)3.263 litersStandard Deviation 1.2571
Secondary

Change From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 Weeks

FEV1 is the maximal volume of air exhaled in the first second of a forced expiration from a position of full inspiration. FVC is the volume of air which can be forcibly exhaled from the lungs after taking the deepest breath possible. Change over 4 weeks is presented.

Time frame: Baseline, Week 1 to Week 4

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug; n=number of participants analyzed in respective arms for category.

ArmMeasureGroupValue (MEAN)Dispersion
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 WeeksFEV1: Change Over 4 Weeks (n=6,6)-0.047 litersStandard Deviation 0.0983
PF-03715455 680 mcg Twice DailyChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 WeeksFVC: Change Over 4 Weeks (n=6,6)0.091 litersStandard Deviation 0.1661
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 WeeksFEV1: Change Over 4 Weeks (n=6,6)0.080 litersStandard Deviation 0.231
PlaceboChange From Baseline in Trough FEV1 and Forced Vital Capacity (FVC) Over 4 WeeksFVC: Change Over 4 Weeks (n=6,6)0.233 litersStandard Deviation 0.3014
Secondary

Maximum Observed Plasma Concentrations (Cmax) of PF-03715455

Time frame: Pre-dose on Day 7 and Day 21; post-dose on Day 7 (10 minutes and 1 hour post-dose) and Day 29

Population: As pharmacokinetics (PK) was not a primary objective of the study, only sparse PK sampling was performed to allow for a population PK analysis. As the study was prematurely terminated, there were too few subjects to perform this analysis. Therefore, the PK was not analyzed.

Secondary

Trough Plasma Concentration (Ctrough) of PF-03715455

Ctrough is the concentration prior to study drug administration.

Time frame: Pre-dose on Day 7 and Day 21; post-dose on Day 7 (10 minutes and 1 hour post-dose) and Day 29

Population: As PK was not a primary objective of the study, only sparse PK sampling was performed to allow for a population PK analysis. As the study was prematurely terminated, there were too few subjects to perform this analysis. Therefore, the PK was not analyzed.

Other Pre-specified

Change From Baseline in Pulse Rate

Pulse rate was evaluated in the supine position.

Time frame: Baseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4), Day 49 (follow-up)

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug; n=number of participants analyzed in respective arms for category.

ArmMeasureGroupValue (MEAN)Dispersion
PF-03715455 680 mcg Twice DailyChange From Baseline in Pulse RateChange at Follow-Up (n=7,6)2.0 beats per minute (bpm)Standard Deviation 4.76
PF-03715455 680 mcg Twice DailyChange From Baseline in Pulse RateChange at Week 1 (n=7,6)3.6 beats per minute (bpm)Standard Deviation 7.41
PF-03715455 680 mcg Twice DailyChange From Baseline in Pulse RateBaseline (n=8,7)66.5 beats per minute (bpm)Standard Deviation 11.82
PF-03715455 680 mcg Twice DailyChange From Baseline in Pulse RateChange at Week 3 (n=5,5)-1.6 beats per minute (bpm)Standard Deviation 3.36
PF-03715455 680 mcg Twice DailyChange From Baseline in Pulse RateChange at Week 4 (n=8,7)1.3 beats per minute (bpm)Standard Deviation 2.96
PlaceboChange From Baseline in Pulse RateChange at Week 3 (n=5,5)0.0 beats per minute (bpm)Standard Deviation 3.16
PlaceboChange From Baseline in Pulse RateChange at Week 4 (n=8,7)1.3 beats per minute (bpm)Standard Deviation 6.24
PlaceboChange From Baseline in Pulse RateChange at Follow-Up (n=7,6)1.0 beats per minute (bpm)Standard Deviation 3.35
PlaceboChange From Baseline in Pulse RateBaseline (n=8,7)64.3 beats per minute (bpm)Standard Deviation 9.71
PlaceboChange From Baseline in Pulse RateChange at Week 1 (n=7,6)3.5 beats per minute (bpm)Standard Deviation 3.56
Other Pre-specified

Change From Baseline in Systolic and Diastolic Blood Pressure

Systolic blood pressure (SBP) and diastolic pressure (DBP) were evaluated in the supine position.

Time frame: Baseline, Day 7 (Week 1), Day 21 (Week 3), Day 29 (Week 4), Day 49 (follow-up)

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug; n=number of participants analyzed in respective arms for category.

ArmMeasureGroupValue (MEAN)Dispersion
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureSBP: Baseline (n=8,7)130.0 millimeters of mercury (mmHg)Standard Deviation 19.16
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 1 (n=7,6)-7.4 millimeters of mercury (mmHg)Standard Deviation 13.24
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 3 (n=5,5)-3.4 millimeters of mercury (mmHg)Standard Deviation 12.03
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 4 (n=8,7)-2.0 millimeters of mercury (mmHg)Standard Deviation 15.34
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Follow-Up (n=7,6)1.4 millimeters of mercury (mmHg)Standard Deviation 13.49
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureDBP: Baseline (n=8,7)69.9 millimeters of mercury (mmHg)Standard Deviation 9.72
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 1 (n=7,6)0.6 millimeters of mercury (mmHg)Standard Deviation 6.95
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 3 (n=5,5)2.4 millimeters of mercury (mmHg)Standard Deviation 7.09
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 4 (n=8,7)2.1 millimeters of mercury (mmHg)Standard Deviation 3.91
PF-03715455 680 mcg Twice DailyChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Follow-Up (n=7,6)5.4 millimeters of mercury (mmHg)Standard Deviation 6.63
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 3 (n=5,5)4.4 millimeters of mercury (mmHg)Standard Deviation 5.13
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureSBP: Baseline (n=8,7)122.7 millimeters of mercury (mmHg)Standard Deviation 13.92
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureDBP: Baseline (n=8,7)65.1 millimeters of mercury (mmHg)Standard Deviation 9.01
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 1 (n=7,6)1.3 millimeters of mercury (mmHg)Standard Deviation 3.01
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Follow-Up (n=7,6)2.8 millimeters of mercury (mmHg)Standard Deviation 5.04
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 3 (n=5,5)-0.6 millimeters of mercury (mmHg)Standard Deviation 9.02
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 1 (n=7,6)8.7 millimeters of mercury (mmHg)Standard Deviation 8.69
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Week 4 (n=8,7)8.1 millimeters of mercury (mmHg)Standard Deviation 7.06
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureDBP: Change at Week 4 (n=8,7)2.4 millimeters of mercury (mmHg)Standard Deviation 8.46
PlaceboChange From Baseline in Systolic and Diastolic Blood PressureSBP: Change at Follow-Up (n=7,6)4.7 millimeters of mercury (mmHg)Standard Deviation 11.24
Other Pre-specified

Number of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) Findings

Clinically significant ECG findings include: PR interval \>=300 milliseconds (msec) or \>=25% increase when baseline is \>200 msec and \>=50% increase when baseline is less than or equal to 200 msec; QRS interval \>=200 msec or \>=25/50% increase from baseline; QT interval \>=500 msec; corrected QT interval using Fridericia's formula (QTcF) \>=450 msec or \>=30 msec increase.

Time frame: Baseline up to Day 29 (Week 4)

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (NUMBER)
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQT Interval >=500 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval >=500 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsPR Interval >=300 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQRS Complex >=200 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 450-<480 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 480-<500 msec0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsPR Interval >=25/50% Increase From Baseline0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQRS Complex >=25/50% Increase From Baseline0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 30-<60 msec Increase From Baseline0 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval >=60 msec Increase From Baseline0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQRS Complex >=25/50% Increase From Baseline0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQT Interval >=500 msec0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 480-<500 msec0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval >=500 msec0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval >=60 msec Increase From Baseline0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsPR Interval >=300 msec0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsPR Interval >=25/50% Increase From Baseline0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQRS Complex >=200 msec0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 30-<60 msec Increase From Baseline0 participants
PlaceboNumber of Participants With Clinically Significant Treatment Emergent Electrocardiogram (ECG) FindingsQTcF Interval 450-<480 msec0 participants
Other Pre-specified

Number of Participants With Laboratory Abnormalities

The following laboratory parameters were analyzed: hematology (hemoglobin, hematocrit, red blood cell \[RBC\] count, RBC morphology, platelet count, white blood cell \[WBC\] count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); blood chemistry (blood urea nitrogen \[BUN\], creatinine, glucose, calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase \[AST\], alanine aminotransferase \[ALT\], total bilirubin, direct and indirect bilirubin, gamma-glutamyl transpeptidase \[GGT\], alkaline phosphatase, uric acid, albumin, total protein, high sensitivity C-reactive protein \[CRP\]); urinalysis (specific gravity, pH, glucose, protein, blood, ketones, nitrites, leukocyte esterase, microscopy \[only if urine dipstick was positive for blood or protein\]).

Time frame: Baseline up to Week 4

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
PF-03715455 680 mcg Twice DailyNumber of Participants With Laboratory Abnormalities6 participants
PlaceboNumber of Participants With Laboratory Abnormalities4 participants
Other Pre-specified

Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)

An AE was any untoward medical occurrence in a participant who received study drug without regard to causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to Day 29 that were absent before treatment or that worsened relative to pre-treatment state. AEs included both SAEs and non-SAEs.

Time frame: Baseline up to Day 29 (Week 4)

Population: The mITT analysis set included all randomized participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (NUMBER)
PF-03715455 680 mcg Twice DailyNumber of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)AEs3 participants
PF-03715455 680 mcg Twice DailyNumber of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)SAEs0 participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)AEs4 participants
PlaceboNumber of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)SAEs0 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026