Trial Outcomes & Findings for PF-04191834 Single Dose Bronchodilatory Study In Asthma. (NCT NCT00723021)

NCT ID: NCT00723021

Last Updated: 2013-02-01

Results Overview

The FEV1 is the maximal volume of air that can be forcefully exhaled in one second

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

15 participants

Primary outcome timeframe

Baseline, 12 hours (hrs) post-dose

Results posted on

2013-02-01

Participant Flow

Participant milestones

Participant milestones
Measure
Treatment Sequence 1
Placebo/Zileuton CR 1200 mg/PF-04191834 30 mg/PF-04191834 2000 mg/PF-04191834 100 mg
Treatment Sequence 2
PF-04191834 100 mg/PF-04191834 30 mg/PF-04191834 2000 mg/Placebo/Zileuton CR 1200 mg
Treatment Sequence 3
PF-04191834 2000 mg/PF-04191834 100 mg/Zileuton CR 1200 mg/PF-04191834 30 mg/Placebo
Treatment Sequence 4
PF-04191834 30 mg/Placebo/PF-04191834 100 mg/Zileuton CR 1200 mg/PF-04191834 2000 mg
Treatment Sequence 5
Zileuton CR 1200 mg/PF-04191834 2000 mg/Placebo/PF-04191834 100 mg/PF-04191834 30 mg
Intervention Period 1
STARTED
3
3
3
3
3
Intervention Period 1
COMPLETED
3
3
3
3
3
Intervention Period 1
NOT COMPLETED
0
0
0
0
0
Intervention Period 2
STARTED
3
3
3
3
3
Intervention Period 2
COMPLETED
3
3
3
3
3
Intervention Period 2
NOT COMPLETED
0
0
0
0
0
Intervention Period 3
STARTED
3
3
3
3
3
Intervention Period 3
COMPLETED
3
3
3
3
3
Intervention Period 3
NOT COMPLETED
0
0
0
0
0
Intervention Period 4
STARTED
3
3
3
3
3
Intervention Period 4
COMPLETED
3
3
3
3
2
Intervention Period 4
NOT COMPLETED
0
0
0
0
1
Intervention Period 5
STARTED
3
3
3
3
2
Intervention Period 5
COMPLETED
3
3
3
3
2
Intervention Period 5
NOT COMPLETED
0
0
0
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Treatment Sequence 1
Placebo/Zileuton CR 1200 mg/PF-04191834 30 mg/PF-04191834 2000 mg/PF-04191834 100 mg
Treatment Sequence 2
PF-04191834 100 mg/PF-04191834 30 mg/PF-04191834 2000 mg/Placebo/Zileuton CR 1200 mg
Treatment Sequence 3
PF-04191834 2000 mg/PF-04191834 100 mg/Zileuton CR 1200 mg/PF-04191834 30 mg/Placebo
Treatment Sequence 4
PF-04191834 30 mg/Placebo/PF-04191834 100 mg/Zileuton CR 1200 mg/PF-04191834 2000 mg
Treatment Sequence 5
Zileuton CR 1200 mg/PF-04191834 2000 mg/Placebo/PF-04191834 100 mg/PF-04191834 30 mg
Intervention Period 4
Adverse Event
0
0
0
0
1

Baseline Characteristics

PF-04191834 Single Dose Bronchodilatory Study In Asthma.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=15 Participants
Participants receiving any of the 5 treatments (PF-04191834 30 mg, PF-04191834 100 mg, PF-04191834 2000 mg, Zileuton CR 1200 mg and Placebo) in a randomized fashion first
Age Continuous
33.5 years
STANDARD_DEVIATION 9.7 • n=93 Participants
Sex: Female, Male
Female
8 Participants
n=93 Participants
Sex: Female, Male
Male
7 Participants
n=93 Participants
Race/Ethnicity, Customized
White
12 participants
n=93 Participants
Race/Ethnicity, Customized
Black
3 participants
n=93 Participants

PRIMARY outcome

Timeframe: Baseline, 12 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FEV1 is the maximal volume of air that can be forcefully exhaled in one second

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1)
Baseline
2.624 L
Standard Deviation 0.3939
2.626 L
Standard Deviation 0.3860
2.585 L
Standard Deviation 0.5200
2.579 L
Standard Deviation 0.4131
2.609 L
Standard Deviation 0.4502
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1)
Change at 12 Hours Postdose
0.064 L
Standard Deviation 0.3098
0.164 L
Standard Deviation 0.1859
0.152 L
Standard Deviation 0.2072
0.265 L
Standard Deviation 0.3047
0.131 L
Standard Deviation 0.1566

PRIMARY outcome

Timeframe: Baseline, 24 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FEV1 is the maximal volume of air that can be forcefully exhaled in one second

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1)
Baseline
2.624 L
Standard Deviation 0.3939
2.626 L
Standard Deviation 0.3860
2.585 L
Standard Deviation 0.5200
2.579 L
Standard Deviation 0.4131
2.609 L
Standard Deviation 0.4502
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1)
Change at 24 Hours Postdose
0.122 L
Standard Deviation 0.2553
0.014 L
Standard Deviation 0.2318
0.103 L
Standard Deviation 0.2616
0.162 L
Standard Deviation 0.1559
0.151 L
Standard Deviation 0.1338

SECONDARY outcome

Timeframe: Baseline, 12 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FVC is the maximal volume of air that can be exhaled from full inhalation by exhaling as forcefully and rapidly as possible

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Vital Capacity (FVC)
Baseline
3.852 L
Standard Deviation 0.8865
3.891 L
Standard Deviation 0.8625
3.720 L
Standard Deviation 0.8930
3.792 L
Standard Deviation 0.9100
3.821 L
Standard Deviation 0.9914
Change From Baseline in Forced Vital Capacity (FVC)
Change at 12 Hours Postdose
0.025 L
Standard Deviation 0.3306
0.284 L
Standard Deviation 0.4150
0.210 L
Standard Deviation 0.4792
0.266 L
Standard Deviation 0.3184
0.140 L
Standard Deviation 0.2750

SECONDARY outcome

Timeframe: Baseline,24 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FVC is the maximal volume of air that can be exhaled from full inhalation by exhaling as forcefully and rapidly as possible

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Vital Capacity (FVC)
Baseline
3.852 L
Standard Deviation 0.8865
3.891 L
Standard Deviation 0.8625
3.720 L
Standard Deviation 0.8930
3.792 L
Standard Deviation 0.9100
3.821 L
Standard Deviation 0.9914
Change From Baseline in Forced Vital Capacity (FVC)
Change at 24 Hours Postdose
0.162 L
Standard Deviation 0.2322
0.051 L
Standard Deviation 0.2839
0.229 L
Standard Deviation 0.3657
0.171 L
Standard Deviation 0.2070
0.219 L
Standard Deviation 0.2977

SECONDARY outcome

Timeframe: Baseline, 12 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FEF25-75 is the forced expiratory flow between 25 and 75% of vital capacity

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Expiratory Flow Between 25 and 75% of Vital Capacity (FEF25-75)
Baseline
1.951 L/Sec
Standard Deviation 0.4550
1.901 L/Sec
Standard Deviation 0.4228
1.807 L/Sec
Standard Deviation 0.4452
1.915 L/Sec
Standard Deviation 0.4488
1.959 L/Sec
Standard Deviation 0.4378
Change From Baseline in Forced Expiratory Flow Between 25 and 75% of Vital Capacity (FEF25-75)
Change at 12 Hours Postdose
0.091 L/Sec
Standard Deviation 0.3556
0.340 L/Sec
Standard Deviation 0.4238
0.269 L/Sec
Standard Deviation 0.3033
0.297 L/Sec
Standard Deviation 0.3871
0.187 L/Sec
Standard Deviation 0.3757

SECONDARY outcome

Timeframe: Baseline, 24 hours (hrs) post-dose

Population: All enrolled participants treated who had at least 1 concentration in at least 1 treatment period

The FEF25-75 is the forced expiratory flow between 25 and 75% of vital capacity

Outcome measures

Outcome measures
Measure
Placebo
n=15 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 Participants
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Change From Baseline in Forced Expiratory Flow Between 25 and 75% of Vital Capacity (FEF25-75)
Baseline
1.951 L
Standard Deviation 0.4550
1.901 L
Standard Deviation 0.4228
1.807 L
Standard Deviation 0.4452
1.915 L
Standard Deviation 0.4488
1.959 L
Standard Deviation 0.4378
Change From Baseline in Forced Expiratory Flow Between 25 and 75% of Vital Capacity (FEF25-75)
Change at 24 Hours Postdose
0.146 L
Standard Deviation 0.3049
0.038 L
Standard Deviation 0.1952
0.196 L
Standard Deviation 0.2169
0.151 L
Standard Deviation 0.2030
0.208 L
Standard Deviation 0.3483

OTHER_PRE_SPECIFIED outcome

Timeframe: Pre-dose, 2, 4, 5, 6, 10, 14 and 24 hours following dosing in each period.

Population: All enrolled subjects treated who have at least one of the PK parameters of interest in at least one treatment period.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast)

Outcome measures

Outcome measures
Measure
Placebo
n=14 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
1979 ng*h/mL
Standard Deviation 482
5547 ng*h/mL
Standard Deviation 1388
29990 ng*h/mL
Standard Deviation 8812

OTHER_PRE_SPECIFIED outcome

Timeframe: Pre-dose, 2, 4, 5, 6, 10, 14 and 24 hours following dosing in each period.

Population: All enrolled subjects treated who have at least one of the PK parameters of interest in at least one treatment period.

Outcome measures

Outcome measures
Measure
Placebo
n=14 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Maximum Observed Plasma Concentration (Cmax)
154 ng/mL
Standard Deviation 29
426 ng/mL
Standard Deviation 118
2146 ng/mL
Standard Deviation 410

OTHER_PRE_SPECIFIED outcome

Timeframe: Pre-dose, 2, 4, 5, 6, 10, 14 and 24 hours following dosing in each period.

Outcome measures

Outcome measures
Measure
Placebo
n=14 Participants
Participants received a single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 Participants
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
Paticipants received a single oral dose of zileuton CR 1200 mg (2 x 600 mg tablets) in any treatment period
Time to Reach Maximum Observed Plasma Concentration (Tmax)
6 hrs
Interval 5.0 to 14.0
6 hrs
Interval 4.0 to 14.0
10 hrs
Interval 4.0 to 14.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Pre-dose, 2, 4, 5, 6, 10, 14 and 24 hours following dosing in each period.

Population: Since the PK sample collection only occurred until 24 hours and the approximate t1/2 at all doses appeared to be \>10 hours, t1/2 and area under the plasma concentration versus time curve until infinity (AUCinf) are not reported at any dose level.

Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 and 24 hours following dosing in each period.

Population: Since the PK sample collection only occurred until 24 hours and the approximate t1/2 at all doses appeared to be \>10 hours, t1/2 and area under the plasma concentration versus time curve until infinity (AUCinf) are not reported at any dose level.

AUC (0 - 8)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - 8). It is obtained from AUC (0 - t) plus AUC (t - 8).

Outcome measures

Outcome data not reported

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

PF-04191834 30 mg

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

PF-04191834 100 mg

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

PF-04191834 2000 mg

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

Zileuton CR 1200 mg

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Placebo
n=15 participants at risk
Participants received single oral dose of placebo for zileuton CR tablets or placebo for PF-04191834 oral aqueous dispersion in any treatment period
PF-04191834 30 mg
n=14 participants at risk
Participants received a single oral dose of PF-04191834 30 mg in any treatment period
PF-04191834 100 mg
n=15 participants at risk
Participants received a single oral dose of PF-04191834 100 mg single dose in any treatment period
PF-04191834 2000 mg
n=15 participants at risk
Participants received a single oral dose of PF-04191834 2000 mg in any treatment period
Zileuton CR 1200 mg
n=15 participants at risk
Paticipants received single oral dose of zileuton CR1200 mg (2 x 600 mg tablets) in any treatment period
Cardiac disorders
Ventricular extrasystoles
0.00%
0/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Gastrointestinal disorders
Dry mouth
6.7%
1/15
0.00%
0/14
6.7%
1/15
6.7%
1/15
6.7%
1/15
Gastrointestinal disorders
Flatulence
0.00%
0/15
0.00%
0/14
6.7%
1/15
6.7%
1/15
6.7%
1/15
Gastrointestinal disorders
Nausea
6.7%
1/15
0.00%
0/14
0.00%
0/15
0.00%
0/15
6.7%
1/15
General disorders
Fatigue
6.7%
1/15
0.00%
0/14
0.00%
0/15
0.00%
0/15
6.7%
1/15
General disorders
Pain
0.00%
0/15
0.00%
0/14
0.00%
0/15
0.00%
0/15
6.7%
1/15
Infections and infestations
Lower respiratory tract infection
0.00%
0/15
7.1%
1/14
0.00%
0/15
0.00%
0/15
6.7%
1/15
Infections and infestations
Upper respiratory tract infection
0.00%
0/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Infections and infestations
Viral upper respiratory tract
6.7%
1/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Investigations
Electrocardiogram abnormal
0.00%
0/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Nervous system disorders
Dysgeusia
6.7%
1/15
0.00%
0/14
6.7%
1/15
6.7%
1/15
6.7%
1/15
Nervous system disorders
Headache
13.3%
2/15
21.4%
3/14
6.7%
1/15
6.7%
1/15
33.3%
5/15
Nervous system disorders
Somnolence
0.00%
0/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Reproductive system and breast disorders
Dysmenorrhoea
6.7%
1/15
0.00%
0/14
0.00%
0/15
0.00%
0/15
0.00%
0/15
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/15
0.00%
0/14
6.7%
1/15
0.00%
0/15
0.00%
0/15
Vascular disorders
Phlebitis
6.7%
1/15
0.00%
0/14
0.00%
0/15
0.00%
0/15
0.00%
0/15

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER