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PF-06669571 In Subjects With Idiopathic Parkinson's Disease

A Phase 1b, Double Blind, Sponsor Open, Randomized, Parallel, Group Multiple Dose Study Examining The Safety, Tolerability, Pharmacokinetics And Pharmacodynamics Of Pf-06669571 In Subjects With Idiopathic Parkinson's Disease.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02565628
Enrollment
20
Registered
2015-10-01
Start date
2015-11-16
Completion date
2016-05-13
Last updated
2023-07-24

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

Conditions

Idiopathic Parkinson's Disease

Brief summary

This study is designed to assess safety, tolerability and pharmacokinetic data for multiple doses of PF-06669571 in subjects with idiopathic Parkinson's disease. In addition, this study will assess whether PF-06669571 is able to demonstrate superior efficacy compared with placebo in the treatment of the motor symptoms of idiopathic Parkinson's disease.

Interventions

1 milligram (mg) QD for 3 days followed by 3 mg QD for 4 days

DRUGPlacebo

Placebo

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
45 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Subjects must have a clinical diagnosis of idiopathic Parkinson's disease and presence of at least 2 out of 3 cardinal characteristics (tremor, rigidity and/or bradykinesia). * Must be Hoehn & Yahr Stage II-III inclusive and experiencing motor fluctuations in the form of end-of-dose wearing off during the morning hours or early morning akinesia. * Subjects should be able to recognize their wearing off symptoms and verify that they usually improve after their next dose of Parkinson's disease medication. Subjects should be able to recognize drug-induced dyskinesias and verify whether or not they are troublesome.

Exclusion criteria

\- History or clinical features consistent with an atypical parkinsonian syndrome, (for example: ataxia, dystonia, clinically significant orthostatic hypotension.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Laboratory Abnormalities That Met Categorical Criteria for Concern (Without Regard to Baseline Abnormality)Screening, Days 1, 4, and 7, and follow-up visitNumber of participants with a laboratory abnormality meeting specified criteria. The laboratory test included: hematology (hemoglobin, hematocrit, red blood cell count, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, white blood cell count, absolute total neutrophils, absolute eosinophils, absolute basophils, absolute monocytes, and absolute lymphocytes),liver function(total bilirubin, direct bilirubin, aspartate, aspartate aminotransferase, alanine, alanine aminotransferase, alkaline phosphatase, total protein, and albumin), renal function (blood urea nitrogen, creatinine, and uric acid), electrolytes (sodium, potassium, chloride, calcium, and venous bicarbonate), clinical chemistry(glucose) ,and urinalysis (pH, qualitative glucose, qualitative protein, qualitative blood, qualitative ketones, qualitative bilirubin, nitrites, leukocyte esterase, urine urobilinogen, urine leukocyte, esterase and microscopy).
Number of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Screening, Days -1, 1, 7 and 8, and follow-up visitThe number of participants with vital signs data of maximum increase from baseline meeting the following criteria was reported: Criterion A: maximum increase from baseline in supine systolic BP (SBP) \>=30 millimeters of mercury (mmHg); Criterion B maximum increase from baseline in standing SBP \>=30 mmHg; Criterion C: maximum increase from baseline in supine diastolic BP(DBP) \>=20 mmHg; Criterion D: maximum increase from baseline in standing diastolic BP(DBP) \>=20 mmHg
Number of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Screening, Days -1, 1, 7 and 8, and follow-up visitThe number of participants with vital signs data of maximum decrease from baseline meeting the following criteria was reported: Criterion A: maximum decrease from baseline in supine systolic BP (SBP) \>=30 mmHg; Criterion B: maximum decrease from baseline in standing SBP \>=30 mmHg; Criterion C: maximum decrease from baseline in supine diastolic BP(DBP) \>=20 mmHg; Criterion D: maximum decrease from baseline in standing diastolic BP(DBP) \>=20 mmHg
Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Screening, Days 1, 7, and 8, and follow-up visitThe number of participants with ECG absolute values meeting the following criteria was reported: Criterion A: maximum PR interval (time from the beginning of P wave to the start of QRS complex, corresponding to the end of atrial depolarization and onset of ventricular depolarization) \>=300 msec; Criterion B: maximum QRs complex(time from Q wave to the end of S wave, corresponding to ventricle depolarization) \>=140 msec; Criterion C: maximum QTcF interval (time from the beginning of Q wave to the end of T wave corresponding to electrical systole, corrected for heart rate using Fridericia's formula) 450-\<480 msec; Criterion D: maximum QTcF interval 480-\<500 msec; Criterion E: maximum QTcF interval (Fridericia's correction) \>=500 msec
Primary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Screening, Days 1, 7, and 8, and follow-up visitNumber of participants with ECG(standard 12-lead) meeting the following criteria was reported: Criterion A: maximum PR interval increase from baseline percentage change (PctChg)\>=25/50%; Criterion B: maximum QRs complex increase from baseline PctChg \>=50%; Criterion C: maximum QTcF interval increase from baseline 30\<=change\<60 msec; Criterion D: maximum QTcF interval increase from baseline change \>=60 msec.
Maximum Percent Change From Baseline in Movement Disorder Society-Sponsor Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III at Day 7.Day 7The total MDS-UPDRS score is the most common method of evaluating the severity of Parkinson's disease across behaviors, activities of daily living, motor abilities, and other complications of Parkinson's disease. The MDS-UPDRS focuses primarily on measuring impairments associated with Parkinson's disease, with subsections organized according to motor and non-motor aspects of the disease. Part III assesses the motor signs of Parkinson's disease. Higher total scores indicate more severe motor signs of Parkinson's disease. Negative changes from baseline indicate improvement. MDS-UPDRS Part III total motor score is comprised of 33 sub-scores based on 18 items, several with right, left or other body distribution scores. Each question is anchored with five responses that are linked to commonly accepted clinical terms: 0 = normal, 1 = slight, 2 = mild, 3 = moderate and 4 = severe.
Number of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitDay -2, Day 8, and follow-up visit (Day 7 - 14 after last dose of PF-06669571)The number of participants in each C-CASA category was mapped from Columbia-Suicide Severity Rating Scale (C-SSRS) data. C-SSRS assessed whether participant experienced following: completed suicide (1), suicide attempt (2) (response of Yes on actual attempt), preparatory acts toward imminent suicidal behavior (3) (Yes on preparatory acts or behavior), suicidal ideation (4) (Yes on wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with methods without intent to act or some intent to act or some intent to act, with specific plan and intent), any suicidal behavior or ideation, self-injurious behavior (7) (Yes on Has subject engaged in non-suicidal self-injurious behavior).
Number of Participants With New Onset and Worsening of Post-Baseline Suicidality.Day 8 or follow-up visit (Day 7 - 14 after last dose of PF-06669571)Number of participants with new onset and worsening of post-baseline suicidality was reported
Number of Participants With Treatment Emergent Adverse Events (All Causalities)Day 1 to 28 calendar days after the last dose of investigational productAn adverse event (AE) was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage.
Number of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Screening, Days -1, 1, 7 and 8, and follow-up visitNumber of participants with supine and standing vital signs data of absolute values meeting criteria of potential clinical concern. Absolute values were analyzed for supine/standing systolic blood pressure (SBP), supine/standing diastolic blood pressure (DBP), and supine/standing pulse rate. Number of participants with vital signs data meeting the following criteria was reported: (1) absolute supine SBP \<90 millimeters of mercury (mmHg); (2) absolute standing SBP \<90 mmHg; (3)absolute supine DBP\<50mmHg; (4)absolute standing DBP\<50mmHg (5) absolute supine pulse rate \<40 beats per minute (bpm); (6) absolute supine pulse rate \>120 bpm;(7) absolute standing pulse rate \<40 bpm; (8) absolute standing pulse rate \>140 bpm.

Secondary

MeasureTime frameDescription
Area Under Curve From Time Zero to 12 Hours (AUC12) of PF-06669571 on Day 1 and Day 70, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7AUC12 of PF-06669571 refers to the area under the curve from time zero to 12 hours post dose on Day 1 and Day 7. AUC12 was determined by using linear/log trapezoidal method.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06669571 on Day 1 and Day 70, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7Tmax of PF-06669571 was observed directly from data on Day 1 and Day 7, as time of first occurrence.
Area Under Curve From Time Zero to 24 Hours (AUC24) of PF-06669571 on Day 70, 1, 3, 5, 8, 12 and 24 hours post-dose on Day 7AUC24 of PF-06669571 refers to the area under the curve from time zero to 24 hours post dose on Day 7. AUC24 was determined by using linear/log trapezoidal method
Maximum Observed Plasma Concentration (Cmax) of PF-06669571 on Day 1 and Day 70, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7Cmax of PF-06669671 was observed directly from data on Day 1 and Day 7

Countries

United States

Participant flow

Pre-assignment details

A total of 20 participants were randomized, 19 participants were treated. One participant was randomized but withdrew consent before receiving any treatment. This subject was not included in any analysis set.

Participants by arm

ArmCount
PF-06669571 0.5 mg
PF-06669571 0.5 mg was orally administered on Day 1 through Day 7 as tablets. Participants swallowed 2 tablets on Days 1-3 (1 mg total) and 6 tablets (3 mg total) on Days 4-7 once daily, with ambient temperature water to a total volume of approximately 240 mL. A follow-up visit of 7-14 days after last dose of the treatment was completed.
10
Placebo
Placebo matched to PF-06669571 was orally administered on Day 1 through Day 7 as tablets. Participants swallowed 6 tablets everyday with ambient temperature water to a total volume of approximately 240 mL. A follow-up visit of 7-14 days after last dose of the treatment was completed.
9
Total19

Baseline characteristics

CharacteristicPF-06669571 0.5 mgPlaceboTotal
Age, Continuous65.5 years
STANDARD_DEVIATION 7.4
67.9 years
STANDARD_DEVIATION 5.9
66.6 years
STANDARD_DEVIATION 6.6
Sex: Female, Male
Female
4 Participants5 Participants9 Participants
Sex: Female, Male
Male
6 Participants4 Participants10 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
6 / 105 / 9
serious
Total, serious adverse events
0 / 100 / 9

Outcome results

Primary

Maximum Percent Change From Baseline in Movement Disorder Society-Sponsor Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III at Day 7.

The total MDS-UPDRS score is the most common method of evaluating the severity of Parkinson's disease across behaviors, activities of daily living, motor abilities, and other complications of Parkinson's disease. The MDS-UPDRS focuses primarily on measuring impairments associated with Parkinson's disease, with subsections organized according to motor and non-motor aspects of the disease. Part III assesses the motor signs of Parkinson's disease. Higher total scores indicate more severe motor signs of Parkinson's disease. Negative changes from baseline indicate improvement. MDS-UPDRS Part III total motor score is comprised of 33 sub-scores based on 18 items, several with right, left or other body distribution scores. Each question is anchored with five responses that are linked to commonly accepted clinical terms: 0 = normal, 1 = slight, 2 = mild, 3 = moderate and 4 = severe.

Time frame: Day 7

Population: All enrolled participants who started treatment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PF-06669571 0.5 mgMaximum Percent Change From Baseline in Movement Disorder Society-Sponsor Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III at Day 7.-19.24 PercentageStandard Error 7.21
PlaceboMaximum Percent Change From Baseline in Movement Disorder Society-Sponsor Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III at Day 7.-14.21 PercentageStandard Error 7.6
p-value: 0.6382Mixed Models Analysis
Primary

Number of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up Visit

The number of participants in each C-CASA category was mapped from Columbia-Suicide Severity Rating Scale (C-SSRS) data. C-SSRS assessed whether participant experienced following: completed suicide (1), suicide attempt (2) (response of Yes on actual attempt), preparatory acts toward imminent suicidal behavior (3) (Yes on preparatory acts or behavior), suicidal ideation (4) (Yes on wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with methods without intent to act or some intent to act or some intent to act, with specific plan and intent), any suicidal behavior or ideation, self-injurious behavior (7) (Yes on Has subject engaged in non-suicidal self-injurious behavior).

Time frame: Day -2, Day 8, and follow-up visit (Day 7 - 14 after last dose of PF-06669571)

Population: All enrolled participants who started treatment.

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitDay -20 participants
PF-06669571 0.5 mgNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitDay 80 participants
PF-06669571 0.5 mgNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitFollow-up visit0 participants
PlaceboNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitDay -20 participants
PlaceboNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitDay 80 participants
PlaceboNumber of Participants in Each Columbia Classification Algorithm of Suicide Assessment (C-CASA) Category by Study Visit on Day -2, Day 8 or Early Withdrawal, and Early Withdrawal/Follow-Up VisitFollow-up visit0 participants
Primary

Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)

The number of participants with ECG absolute values meeting the following criteria was reported: Criterion A: maximum PR interval (time from the beginning of P wave to the start of QRS complex, corresponding to the end of atrial depolarization and onset of ventricular depolarization) \>=300 msec; Criterion B: maximum QRs complex(time from Q wave to the end of S wave, corresponding to ventricle depolarization) \>=140 msec; Criterion C: maximum QTcF interval (time from the beginning of Q wave to the end of T wave corresponding to electrical systole, corrected for heart rate using Fridericia's formula) 450-\<480 msec; Criterion D: maximum QTcF interval 480-\<500 msec; Criterion E: maximum QTcF interval (Fridericia's correction) \>=500 msec

Time frame: Screening, Days 1, 7, and 8, and follow-up visit

Population: All enrolled participants who started treatment

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion A0 participants
PF-06669571 0.5 mgNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion B0 participants
PF-06669571 0.5 mgNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion C0 participants
PF-06669571 0.5 mgNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion D0 participants
PF-06669571 0.5 mgNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion E0 participants
PlaceboNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion C0 participants
PlaceboNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion A0 participants
PlaceboNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion D0 participants
PlaceboNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion B0 participants
PlaceboNumber of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern (Absolute Value)Criterion E0 participants
Primary

Number of Participants With Laboratory Abnormalities That Met Categorical Criteria for Concern (Without Regard to Baseline Abnormality)

Number of participants with a laboratory abnormality meeting specified criteria. The laboratory test included: hematology (hemoglobin, hematocrit, red blood cell count, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelet count, white blood cell count, absolute total neutrophils, absolute eosinophils, absolute basophils, absolute monocytes, and absolute lymphocytes),liver function(total bilirubin, direct bilirubin, aspartate, aspartate aminotransferase, alanine, alanine aminotransferase, alkaline phosphatase, total protein, and albumin), renal function (blood urea nitrogen, creatinine, and uric acid), electrolytes (sodium, potassium, chloride, calcium, and venous bicarbonate), clinical chemistry(glucose) ,and urinalysis (pH, qualitative glucose, qualitative protein, qualitative blood, qualitative ketones, qualitative bilirubin, nitrites, leukocyte esterase, urine urobilinogen, urine leukocyte, esterase and microscopy).

Time frame: Screening, Days 1, 4, and 7, and follow-up visit

Population: All enrolled participants who started treatment.

ArmMeasureValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Laboratory Abnormalities That Met Categorical Criteria for Concern (Without Regard to Baseline Abnormality)8 participants
PlaceboNumber of Participants With Laboratory Abnormalities That Met Categorical Criteria for Concern (Without Regard to Baseline Abnormality)5 participants
Primary

Number of Participants With New Onset and Worsening of Post-Baseline Suicidality.

Number of participants with new onset and worsening of post-baseline suicidality was reported

Time frame: Day 8 or follow-up visit (Day 7 - 14 after last dose of PF-06669571)

Population: All enrolled participants who started treatment

ArmMeasureValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With New Onset and Worsening of Post-Baseline Suicidality.0 participants
PlaceboNumber of Participants With New Onset and Worsening of Post-Baseline Suicidality.0 participants
Primary

Number of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)

The number of participants with vital signs data of maximum decrease from baseline meeting the following criteria was reported: Criterion A: maximum decrease from baseline in supine systolic BP (SBP) \>=30 mmHg; Criterion B: maximum decrease from baseline in standing SBP \>=30 mmHg; Criterion C: maximum decrease from baseline in supine diastolic BP(DBP) \>=20 mmHg; Criterion D: maximum decrease from baseline in standing diastolic BP(DBP) \>=20 mmHg

Time frame: Screening, Days -1, 1, 7 and 8, and follow-up visit

Population: All enrolled participants who started treatment

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion A5 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion B4 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion C3 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion D3 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion D2 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion A3 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion C3 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities (Decrease From Baseline)Criterion B2 participants
Primary

Number of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)

Number of participants with supine and standing vital signs data of absolute values meeting criteria of potential clinical concern. Absolute values were analyzed for supine/standing systolic blood pressure (SBP), supine/standing diastolic blood pressure (DBP), and supine/standing pulse rate. Number of participants with vital signs data meeting the following criteria was reported: (1) absolute supine SBP \<90 millimeters of mercury (mmHg); (2) absolute standing SBP \<90 mmHg; (3)absolute supine DBP\<50mmHg; (4)absolute standing DBP\<50mmHg (5) absolute supine pulse rate \<40 beats per minute (bpm); (6) absolute supine pulse rate \>120 bpm;(7) absolute standing pulse rate \<40 bpm; (8) absolute standing pulse rate \>140 bpm.

Time frame: Screening, Days -1, 1, 7 and 8, and follow-up visit

Population: All enrolled participants who started treatment

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Diastolic BP <50 mmHg0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Pulse Rate >120 BPM0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Systolic BP <90 mmHg1 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Pulse Rate <40 BPM0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Diastolic BP <50 mmHg0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Pulse Rate >140 BPM0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Pulse Rate <40 BPM0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Systolic BP <90 mmHg0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Diastolic BP <50 mmHg0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Systolic BP <90 mmHg0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Systolic BP <90 mmHg0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Diastolic BP <50 mmHg0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Pulse Rate <40 BPM0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Supine Pulse Rate >120 BPM0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Pulse Rate <40 BPM0 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Absolute Values)Standing Pulse Rate >140 BPM0 participants
Primary

Number of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)

The number of participants with vital signs data of maximum increase from baseline meeting the following criteria was reported: Criterion A: maximum increase from baseline in supine systolic BP (SBP) \>=30 millimeters of mercury (mmHg); Criterion B maximum increase from baseline in standing SBP \>=30 mmHg; Criterion C: maximum increase from baseline in supine diastolic BP(DBP) \>=20 mmHg; Criterion D: maximum increase from baseline in standing diastolic BP(DBP) \>=20 mmHg

Time frame: Screening, Days -1, 1, 7 and 8, and follow-up visit

Population: All enrolled participants who started treatment

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion A1 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion B0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion C0 participants
PF-06669571 0.5 mgNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion D1 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion D1 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion A1 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion C1 participants
PlaceboNumber of Participants With Supine and Standing Vital Sign Abnormalities of Potential Clinical Concern (Increase From Baseline)Criterion B1 participants
Primary

Number of Participants With Treatment Emergent Adverse Events (All Causalities)

An adverse event (AE) was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage.

Time frame: Day 1 to 28 calendar days after the last dose of investigational product

Population: All enrolled participants who started treatment

ArmMeasureValue (NUMBER)
PF-06669571 0.5 mgNumber of Participants With Treatment Emergent Adverse Events (All Causalities)6 participants
PlaceboNumber of Participants With Treatment Emergent Adverse Events (All Causalities)5 participants
Primary

Primary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)

Number of participants with ECG(standard 12-lead) meeting the following criteria was reported: Criterion A: maximum PR interval increase from baseline percentage change (PctChg)\>=25/50%; Criterion B: maximum QRs complex increase from baseline PctChg \>=50%; Criterion C: maximum QTcF interval increase from baseline 30\<=change\<60 msec; Criterion D: maximum QTcF interval increase from baseline change \>=60 msec.

Time frame: Screening, Days 1, 7, and 8, and follow-up visit

Population: All enrolled participants who started treatment

ArmMeasureGroupValue (NUMBER)
PF-06669571 0.5 mgPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion D0 participants
PF-06669571 0.5 mgPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion C2 participants
PF-06669571 0.5 mgPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion A0 participants
PF-06669571 0.5 mgPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion B0 participants
PlaceboPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion D0 participants
PlaceboPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion B0 participants
PlaceboPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion A0 participants
PlaceboPrimary: Number of Participants With Electrocardiogram (ECG) That Met Categorical Criteria for Concern(Increase From Baseline)Criterion C0 participants
Secondary

Area Under Curve From Time Zero to 12 Hours (AUC12) of PF-06669571 on Day 1 and Day 7

AUC12 of PF-06669571 refers to the area under the curve from time zero to 12 hours post dose on Day 1 and Day 7. AUC12 was determined by using linear/log trapezoidal method.

Time frame: 0, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7

Population: The PF-06669571 PK parameter analysis set was used for this analysis, and it was defined as all subjects randomized and treated who have at least 1 of the PK parameters of interest measured.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
PF-06669571 0.5 mgArea Under Curve From Time Zero to 12 Hours (AUC12) of PF-06669571 on Day 1 and Day 7Day 7917.5 ng*hr/mLGeometric Coefficient of Variation 35
PF-06669571 0.5 mgArea Under Curve From Time Zero to 12 Hours (AUC12) of PF-06669571 on Day 1 and Day 7Day 1150.8 ng*hr/mLGeometric Coefficient of Variation 28
Secondary

Area Under Curve From Time Zero to 24 Hours (AUC24) of PF-06669571 on Day 7

AUC24 of PF-06669571 refers to the area under the curve from time zero to 24 hours post dose on Day 7. AUC24 was determined by using linear/log trapezoidal method

Time frame: 0, 1, 3, 5, 8, 12 and 24 hours post-dose on Day 7

Population: The PF-06669571 PK parameter analysis set was used for this analysis, and it was defined as all subjects randomized and treated who have at least 1 of the PK parameters of interest measured.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
PF-06669571 0.5 mgArea Under Curve From Time Zero to 24 Hours (AUC24) of PF-06669571 on Day 71626 ng*hr/mLGeometric Coefficient of Variation 38
Secondary

Maximum Observed Plasma Concentration (Cmax) of PF-06669571 on Day 1 and Day 7

Cmax of PF-06669671 was observed directly from data on Day 1 and Day 7

Time frame: 0, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7

Population: The PF-06669571 pharmacokinetics(PK) concentration analysis set was used for this analysis, and it was defined as all subjects randomized and treated who have at least 1 measureable concentration of interest.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
PF-06669571 0.5 mgMaximum Observed Plasma Concentration (Cmax) of PF-06669571 on Day 1 and Day 7Day 116.87 ng/mLGeometric Coefficient of Variation 30
PF-06669571 0.5 mgMaximum Observed Plasma Concentration (Cmax) of PF-06669571 on Day 1 and Day 7Day 792.51 ng/mLGeometric Coefficient of Variation 31
Secondary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06669571 on Day 1 and Day 7

Tmax of PF-06669571 was observed directly from data on Day 1 and Day 7, as time of first occurrence.

Time frame: 0, 1, 3, 5, 8 and 12 hours post-dose on both Day 1 and Day 7

Population: The PF-06669571 PK concentration analysis set was used for this analysis, and it was defined as all subjects randomized and treated who have at least 1 measureable concentration of interest.

ArmMeasureGroupValue (MEAN)
PF-06669571 0.5 mgTime to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06669571 on Day 1 and Day 7Day 13.35 hr
PF-06669571 0.5 mgTime to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06669571 on Day 1 and Day 7Day 73.19 hr

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026