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A Study to Understand How the Study Medicine (PF-07081532) is Processed in People With Liver Dysfunction

A PHASE 1, OPEN-LABEL, SINGLE-DOSE, PARALLEL GROUP STUDY TO COMPARE THE PHARMACOKINETICS OF PF-07081532 IN ADULT PARTICIPANTS WITH VARYING DEGREES OF HEPATIC IMPAIRMENT RELATIVE TO PARTICIPANTS WITHOUT HEPATIC IMPAIRMENT

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05478603
Enrollment
24
Registered
2022-07-28
Start date
2022-08-01
Completion date
2023-04-05
Last updated
2024-08-22

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

Conditions

Healthy Volunteers, Hepatic Impairment

Keywords

Hepatic impairment, Healthy volunteers

Brief summary

The purpose of this study is to understand the effects of liver functional impairment on the study medicine (PF-07081532). People with liver functional impairment may process the study medicine differently from healthy people. We are seeking participants who: * Are between 18 and 70 years of age; * Have a BMI (body mass index) of 17.5 to 38.0 kg/m2, inclusive, and a total body weight \>50 kg (110 lbs.). Participants will take the study medicine as a tablet once at the study clinic, and then will stay onsite for about 7 days. During this time, the study team will monitor their treatment experience and take some blood samples to test the level of PF-07081532. This will help us understand if certain level of liver functional impairment could affect the study medicine being processed in the body.

Interventions

PF-07081532 20 milligrams (mg), 1 tablet orally, once on Day 1

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Male or female between the ages of 18 and 70 years, inclusive at the screening visit. * Willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures. * BMI of 17.5 to 38.0 kg/m2, inclusive, and a total body weight \>50 kg (110 lb). * Group 1 only: at screening, no clinically relevant abnormalities identified by a detailed medical history, physical exam, including blood pressure and pulse rate measurement, ECG and clinical laboratory tests. * Group 1 only: no known or suspected hepatic impairment and meet the criteria based on screening laboratory liver function tests. * Groups 2, 3 & 4 only: stable hepatic impairment that meets criteria for Class A, B, or C of the Child-Pugh classification with no clinically significant change in disease status within 28 days before screening. * Groups 2, 3 & 4 only: stable concomitant medications for the management of individual participant's medical history.

Exclusion criteria

* Any condition possibly affecting drug absorption * At screening, a positive result for HIV antibodies. * Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2 (MEN2), or participants with suspected MTC per study doctor's judgement. * History of acute pancreatitis within 6 months before the screening visit or any history of chronic pancreatitis. * Other medical or psychiatric condition or laboratory abnormality that may increase the risk of study participation or make the participant inappropriate for the study. * Use of specific prohibited prior/concomitant therapies * Use of an investigational product within 30 days (or local requirement) or 5 half-lives (whichever longer). * eGFR\<60 mL/min/1.73m2 at screening. * A positive urine drug test at screening or admission to study clinic. * At screening or admission to study clinic, a positive breath alcohol test. * For females, pregnancy, as indicated by a positive serum pregnancy test at screening and/or positive urine pregnancy test in women capable of having children at admission to study clinic * Group 1 only: evidence of chronic liver disease including history of hepatitis, hepatitis B, or hepatitis C. * Group 1 only: history of alcohol abuse or binge drinking and/or any other illicit drug use or dependence within 6 months of screening. * Group 1 only: screening ECG demonstrating QTcF interval \>450 ms or a QRS interval \>120 ms. * Group 1 only: screening seated systolic blood pressure ≥140 mm Hg or diastolic blood pressure ≥90 mm Hg * Group 1 only: use of chronic prescription medications within 7 days or 5 half-lives (whichever longer) before Day 1, or for prohibited medications, use within the required washout/restriction period. * Group 2, 3 & 4 only: Hepatic carcinoma or hepatorenal syndrome or limited predicted life expectancy (defined as \<1 year in Groups 2 & 3 and \<6 months for Group 4 only). * Group 2, 3 & 4 only: a diagnosis of hepatic dysfunction secondary to any acute ongoing hepatocellular process that is documented by medical history, physical exam, liver biopsy, hepatic ultrasound, CT scan, or MRI. * Group 2, 3 & 4 only: history of surgery that would be expected to alter absorption, distribution, metabolism, or excretion properties of PF-07081532. * Group 2, 3 & 4 only: history of gastrointestinal hemorrhage due to esophageal varices or peptic ulcers less than 4 weeks prior to screening. * Group 2, 3 & 4 only: signs of clinically active Grade 3 or 4 hepatic encephalopathy * Groups 2, 3 & 4 only: severe ascites and/or pleural effusion, except for those categorized in Group 4 who may be enrolled provided participant is medically stable, per the study doctor's judgment. * Groups 2, 3 & 4 only: previously received a kidney, liver, or heart transplant. * Groups 2, 3, & 4 only: screening ECG demonstrating a QTcF interval \>470 ms or a QRS interval \>120 ms. * Groups 2, 3 & 4 only: at screening, admission to study clinic or pre-dose on Day 1, persistent severe, uncontrolled hypertension. * Groups 2, 3 & 4 only: ALT or AST \>5x upper limit of normal on clinical laboratory tests at screening.

Design outcomes

Primary

MeasureTime frameDescription
Unbound AUClast (AUClast,u) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1AUClast,u is the unbound AUClast.
Area Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1AUClast is the area under the plasma concentration-time profile from time zero to the time of the last quantifiable concentration.
Fraction of Unbound Drug in Plasma (Fu) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1Fu is the fraction of unbound drug in plasma, which is calculated by Cu/C (where Cu represents unbound concentration and C represents total concentration).
Unbound Cmax (Cmax,u) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1Cmax,u is the unbound Cmax.
Unbound AUCinf (AUCinf,u) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1AUCinf,u is the unbound AUCinf.
Maximum Plasma Concentration (Cmax) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1Cmax is the maximum plasma concentration.
Area Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-07081532At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1AUCinf is the area under the plasma concentration-time profile from time zero extrapolated to infinite time.

Secondary

MeasureTime frameDescription
Number of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)From baseline (BL) to Day 7Safety laboratory assessments included clinical chemistry, hematology, and urinalysis tests. Number of participants with clinical laboratory abnormalities meeting pre-specified criteria is reported.
Number of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaFrom BL to Day 7Vital signs abnormalities included: seated diastolic blood pressure (BP) increase and decrease from BL of \>=20mmHg or absolute value \<50mmHg; systolic BP increase and decrease from BL of \>=30mmHg or absolute value \<90mmHg; pulse rate \<40 or \>120bpm.
Number of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaFrom BL to Day 7ECG assessments included PR interval, QT interval, QTcF, and QRS complex. ECG abnormalities included PR interval BL \>200msec and max ≥25% increase from BL, or BL ≤200msec and max ≥50% increase from BL, or absolute value ≥300msec; QRS interval percent change from BL ≥50% or absolute value ≥140msec; QTcF change from BL 30- ≤60msec, \>60msec, or absolute value 450- ≤480msec, 480- ≤500msec, or \>500msec.
Number of Participants With Treatment Emergent Adverse Events (TEAEs)Day 1 to Day 36An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious AE (SAE) was defined as any untoward medical occurrence that, at any dose: resulted in death; was life-threatening; required inpatient hospitalization/prolongation of existing hospitalization; resulted in persistent disability/incapacity; was a congenital anomaly/birth defect; or other serious situations such as important medical events. TEAEs were defined as events that started during the effective duration of treatment (ie, starting on or after the dose of PF-07081532 up to the final follow-up visit). AEs presented below were TEAEs. The investigator was required to use clinical judgment to assess the potential relationship between investigational product and each AE, to define an treatment-related AE.

Countries

United States

Participant flow

Pre-assignment details

A total of 39 participants were screened, of whom 24 participants were assigned to treatment and treated, with 6 participants in each group (without hepatic impairment, with mild hepatic impairment, with moderate hepatic impairment, and with severe hepatic impairment).

Participants by arm

ArmCount
Without Hepatic Impairment
This arm included participants without hepatic impairment who received PF-07081532 20mg on Day 1.
6
Mild Hepatic Impairment
This arm included participants with mild hepatic impairment who received PF-07081532 20mg on Day 1.
6
Moderate Hepatic Impairment
This arm included participants with moderate hepatic impairment who received PF-07081532 20mg on Day 1.
6
Severe Hepatic Impairment
This arm included participants with severe hepatic impairment who received PF-07081532 20mg on Day 1.
6
Total24

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyWithdrawal by Subject0100

Baseline characteristics

CharacteristicWithout Hepatic ImpairmentMild Hepatic ImpairmentModerate Hepatic ImpairmentSevere Hepatic ImpairmentTotal
Age, Customized
18-44 years
0 Participants1 Participants1 Participants0 Participants2 Participants
Age, Customized
45-64 years
6 Participants3 Participants2 Participants5 Participants16 Participants
Age, Customized
>=65 years
0 Participants2 Participants3 Participants1 Participants6 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants0 Participants0 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Ethnicity not reported
1 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Hispanic or Latino
1 Participants2 Participants1 Participants3 Participants7 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
4 Participants4 Participants5 Participants3 Participants16 Participants
Race/Ethnicity, Customized
White
5 Participants6 Participants6 Participants5 Participants22 Participants
Sex: Female, Male
Female
1 Participants2 Participants2 Participants1 Participants6 Participants
Sex: Female, Male
Male
5 Participants4 Participants4 Participants5 Participants18 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 60 / 6
other
Total, other adverse events
1 / 60 / 60 / 61 / 6
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 6

Outcome results

Primary

Area Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-07081532

AUCinf is the area under the plasma concentration-time profile from time zero extrapolated to infinite time.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-0708153243200 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 40
Mild Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-0708153244010 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 61
Moderate Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-0708153267430 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 66
Severe Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-0708153241680 nanogram*hour per milliliter (ng*hr/mL)Geometric Coefficient of Variation 62
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [59.74, 173.71]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [91.53, 266.14]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [56.58, 164.51]ANOVA
Primary

Area Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-07081532

AUClast is the area under the plasma concentration-time profile from time zero to the time of the last quantifiable concentration.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-0708153240990 ng*hr/mLGeometric Coefficient of Variation 39
Mild Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-0708153241900 ng*hr/mLGeometric Coefficient of Variation 63
Moderate Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-0708153262680 ng*hr/mLGeometric Coefficient of Variation 64
Severe Hepatic ImpairmentArea Under the Plasma Concentration-time Profile From Time Zero to the Time of the Last Quantifiable Concentration (AUClast) of PF-0708153239800 ng*hr/mLGeometric Coefficient of Variation 63
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [59.91, 174.39]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [89.62, 260.9]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [56.9, 165.65]ANOVA
Primary

Fraction of Unbound Drug in Plasma (Fu) of PF-07081532

Fu is the fraction of unbound drug in plasma, which is calculated by Cu/C (where Cu represents unbound concentration and C represents total concentration).

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentFraction of Unbound Drug in Plasma (Fu) of PF-070815320.0002753 RatioGeometric Coefficient of Variation 12
Mild Hepatic ImpairmentFraction of Unbound Drug in Plasma (Fu) of PF-070815320.0002568 RatioGeometric Coefficient of Variation 38
Moderate Hepatic ImpairmentFraction of Unbound Drug in Plasma (Fu) of PF-070815320.0002937 RatioGeometric Coefficient of Variation 19
Severe Hepatic ImpairmentFraction of Unbound Drug in Plasma (Fu) of PF-070815320.0006780 RatioGeometric Coefficient of Variation 66
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [64.61, 134.69]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [73.89, 154.03]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [170.57, 355.58]ANOVA
Primary

Maximum Plasma Concentration (Cmax) of PF-07081532

Cmax is the maximum plasma concentration.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentMaximum Plasma Concentration (Cmax) of PF-070815322236 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 10
Mild Hepatic ImpairmentMaximum Plasma Concentration (Cmax) of PF-070815322121 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 18
Moderate Hepatic ImpairmentMaximum Plasma Concentration (Cmax) of PF-070815322230 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 30
Severe Hepatic ImpairmentMaximum Plasma Concentration (Cmax) of PF-070815321536 nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 49
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [70.86, 127.04]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [74.5, 133.56]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [51.31, 91.98]ANOVA
Primary

Unbound AUCinf (AUCinf,u) of PF-07081532

AUCinf,u is the unbound AUCinf.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentUnbound AUCinf (AUCinf,u) of PF-0708153211.88 ng*hr/mLGeometric Coefficient of Variation 29
Mild Hepatic ImpairmentUnbound AUCinf (AUCinf,u) of PF-0708153211.30 ng*hr/mLGeometric Coefficient of Variation 91
Moderate Hepatic ImpairmentUnbound AUCinf (AUCinf,u) of PF-0708153219.81 ng*hr/mLGeometric Coefficient of Variation 68
Severe Hepatic ImpairmentUnbound AUCinf (AUCinf,u) of PF-0708153228.24 ng*hr/mLGeometric Coefficient of Variation 65
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [52.6, 172.03]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [92.21, 301.62]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [131.46, 430]ANOVA
Primary

Unbound AUClast (AUClast,u) of PF-07081532

AUClast,u is the unbound AUClast.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentUnbound AUClast (AUClast,u) of PF-0708153211.29 ng*hr/mLGeometric Coefficient of Variation 29
Mild Hepatic ImpairmentUnbound AUClast (AUClast,u) of PF-0708153210.76 ng*hr/mLGeometric Coefficient of Variation 94
Moderate Hepatic ImpairmentUnbound AUClast (AUClast,u) of PF-0708153218.41 ng*hr/mLGeometric Coefficient of Variation 66
Severe Hepatic ImpairmentUnbound AUClast (AUClast,u) of PF-0708153227.02 ng*hr/mLGeometric Coefficient of Variation 64
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [52.67, 172.59]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [90.1, 295.22]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [132.29, 433.47]ANOVA
Primary

Unbound Cmax (Cmax,u) of PF-07081532

Cmax,u is the unbound Cmax.

Time frame: At 0 (prior to dose), 0.5, 1, 2, 4, 6, 8, 10, 12, 15, 24, 36, 48, 72, 96, 120, and 144 hours post dose on Day 1

Population: The PK concentration population included all participants who each received 1 dose of PF-07081532 and in whom at least 1 plasma concentration value was reported. The PK parameter analysis population included all participants who each received 1 dose of PF-07081532 and had at least 1 of the PK parameters of interest calculated.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Without Hepatic ImpairmentUnbound Cmax (Cmax,u) of PF-070815320.6156 ng/mLGeometric Coefficient of Variation 17
Mild Hepatic ImpairmentUnbound Cmax (Cmax,u) of PF-070815320.5448 ng/mLGeometric Coefficient of Variation 42
Moderate Hepatic ImpairmentUnbound Cmax (Cmax,u) of PF-070815320.6551 ng/mLGeometric Coefficient of Variation 36
Severe Hepatic ImpairmentUnbound Cmax (Cmax,u) of PF-070815321.042 ng/mLGeometric Coefficient of Variation 34
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [64.13, 122.12]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [77.11, 146.83]ANOVA
Comparison: One-way ANOVA was used on the natural log transformed PK parameters with hepatic function group as a fixed factor.~The adjusted mean differences and the corresponding 90% confidence intervals derived from ANOVA were exponentiated to provide estimate of the ratio of adjusted geometric means (Test \[hepatic impairment group\]/Reference \[without hepatic impairment group\]) and 90% confidence intervals for the ratio.90% CI: [122.61, 233.47]ANOVA
Secondary

Number of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)

Safety laboratory assessments included clinical chemistry, hematology, and urinalysis tests. Number of participants with clinical laboratory abnormalities meeting pre-specified criteria is reported.

Time frame: From baseline (BL) to Day 7

Population: The safety analysis set included all participants who each took 1 dose of PF-07081532. Here, 'Number Analyzed' signifies number of participants evaluable for the specified rows.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Bilirubin (milligram per deciliter [mg/dL]) >1.5*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin International Normalized Ratio >1.1*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Basophils/Leukocytes (%) >1.2*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen ≥10 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin Time (sec) >1.1*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (second [sec]) >1.1*ULN2 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Eosinophils/Leukocytes (%) >1.2*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Erythrocytes (10^12/liter [L]) <0.8*LLN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥11 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥10 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ketones ≥10 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Volume (femtoliter [fL]) >1.1*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hemoglobin (gram per deciliter [g/dL]) <0.8*lower limit of normal (LLN)0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urate (mg/dL) >1.2*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Albumin (g/dL) <0.8*LLN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (picogram/cell [pg/cell]) <0.9*LLN1 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hematocrit (%) <0.8*LLN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Gamma Glutamyl Transferase (U/L) >3.0*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (unit per liter [U/L]) >3.0*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Platelets (10^9/L) <0.5*LLN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Epithelial Cells (/low-power field [LPF]) ≥60 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Indirect Bilirubin (mg/dL) >1.5*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Direct Bilirubin (mg/dL) >1.5*ULN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Neutrophils (10^9/L) <0.8*LLN0 Participants
Without Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥10 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Volume (femtoliter [fL]) >1.1*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hemoglobin (gram per deciliter [g/dL]) <0.8*lower limit of normal (LLN)0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hematocrit (%) <0.8*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Erythrocytes (10^12/liter [L]) <0.8*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (picogram/cell [pg/cell]) <0.9*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Platelets (10^9/L) <0.5*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Neutrophils (10^9/L) <0.8*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Basophils/Leukocytes (%) >1.2*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Eosinophils/Leukocytes (%) >1.2*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (second [sec]) >1.1*ULN5 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin Time (sec) >1.1*ULN1 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin International Normalized Ratio >1.1*ULN1 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Bilirubin (milligram per deciliter [mg/dL]) >1.5*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Direct Bilirubin (mg/dL) >1.5*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Indirect Bilirubin (mg/dL) >1.5*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (unit per liter [U/L]) >3.0*ULN1 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Gamma Glutamyl Transferase (U/L) >3.0*ULN1 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Albumin (g/dL) <0.8*LLN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urate (mg/dL) >1.2*ULN0 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ketones ≥10 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥10 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen ≥10 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥10 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥12 Participants
Mild Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Epithelial Cells (/low-power field [LPF]) ≥60 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Neutrophils (10^9/L) <0.8*LLN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Bilirubin (milligram per deciliter [mg/dL]) >1.5*ULN2 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hematocrit (%) <0.8*LLN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Direct Bilirubin (mg/dL) >1.5*ULN2 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Platelets (10^9/L) <0.5*LLN1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Indirect Bilirubin (mg/dL) >1.5*ULN1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥10 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (unit per liter [U/L]) >3.0*ULN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (picogram/cell [pg/cell]) <0.9*LLN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Gamma Glutamyl Transferase (U/L) >3.0*ULN2 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Albumin (g/dL) <0.8*LLN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Volume (femtoliter [fL]) >1.1*ULN1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Epithelial Cells (/low-power field [LPF]) ≥61 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urate (mg/dL) >1.2*ULN1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥11 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ketones ≥10 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Erythrocytes (10^12/liter [L]) <0.8*LLN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥10 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Eosinophils/Leukocytes (%) >1.2*ULN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*ULN0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (second [sec]) >1.1*ULN5 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Basophils/Leukocytes (%) >1.2*ULN1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hemoglobin (gram per deciliter [g/dL]) <0.8*lower limit of normal (LLN)0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin Time (sec) >1.1*ULN2 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen ≥11 Participants
Moderate Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin International Normalized Ratio >1.1*ULN3 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Monocytes/Leukocytes (%) >1.2*ULN3 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urobilinogen ≥13 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Urate (mg/dL) >1.2*ULN0 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Bilirubin (milligram per deciliter [mg/dL]) >1.5*ULN4 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Platelets (10^9/L) <0.5*LLN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Erythrocytes (10^12/liter [L]) <0.8*LLN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Basophils/Leukocytes (%) >1.2*ULN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Direct Bilirubin (mg/dL) >1.5*ULN4 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hematocrit (%) <0.8*LLN2 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Epithelial Cells (/low-power field [LPF]) ≥61 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ketones ≥12 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Indirect Bilirubin (mg/dL) >1.5*ULN3 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Hemoglobin (picogram/cell [pg/cell]) <0.9*LLN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Neutrophils (10^9/L) <0.8*LLN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Leukocyte Esterase ≥11 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Aspartate Aminotransferase (unit per liter [U/L]) >3.0*ULN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Activated Partial Thromboplastin Time (second [sec]) >1.1*ULN5 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Bilirubin ≥11 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Eosinophils/Leukocytes (%) >1.2*ULN2 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Gamma Glutamyl Transferase (U/L) >3.0*ULN1 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Ery. Mean Corpuscular Volume (femtoliter [fL]) >1.1*ULN0 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Hemoglobin (gram per deciliter [g/dL]) <0.8*lower limit of normal (LLN)3 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin Time (sec) >1.1*ULN6 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Albumin (g/dL) <0.8*LLN4 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)URINE Hemoglobin ≥11 Participants
Severe Hepatic ImpairmentNumber of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)Prothrombin International Normalized Ratio >1.1*ULN6 Participants
Secondary

Number of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization Criteria

ECG assessments included PR interval, QT interval, QTcF, and QRS complex. ECG abnormalities included PR interval BL \>200msec and max ≥25% increase from BL, or BL ≤200msec and max ≥50% increase from BL, or absolute value ≥300msec; QRS interval percent change from BL ≥50% or absolute value ≥140msec; QTcF change from BL 30- ≤60msec, \>60msec, or absolute value 450- ≤480msec, 480- ≤500msec, or \>500msec.

Time frame: From BL to Day 7

Population: The safety analysis set included all participants who each took 1 dose of PF-07081532.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Value > 500 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 480 < Value ≤ 500 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Change > 60 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval %Change ≥ 50% msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval Value ≥ 140 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval %Change ≥ 25/50% msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 30 < Change ≤ 60 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 450 < Value ≤ 480 msec0 Participants
Without Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval Value ≥ 300 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 450 < Value ≤ 480 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Value > 500 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 480 < Value ≤ 500 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval %Change ≥ 25/50% msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval Value ≥ 300 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval Value ≥ 140 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Change > 60 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 30 < Change ≤ 60 msec0 Participants
Mild Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval %Change ≥ 50% msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 450 < Value ≤ 480 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval Value ≥ 300 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval %Change ≥ 25/50% msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval Value ≥ 140 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval %Change ≥ 50% msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 480 < Value ≤ 500 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Value > 500 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 30 < Change ≤ 60 msec0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Change > 60 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Value > 500 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval %Change ≥ 50% msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQRS Interval Value ≥ 140 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF Change > 60 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 30 < Change ≤ 60 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval %Change ≥ 25/50% msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 480 < Value ≤ 500 msec0 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaQTcF 450 < Value ≤ 480 msec3 Participants
Severe Hepatic ImpairmentNumber of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization CriteriaPR Interval Value ≥ 300 msec0 Participants
Secondary

Number of Participants With Treatment Emergent Adverse Events (TEAEs)

An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious AE (SAE) was defined as any untoward medical occurrence that, at any dose: resulted in death; was life-threatening; required inpatient hospitalization/prolongation of existing hospitalization; resulted in persistent disability/incapacity; was a congenital anomaly/birth defect; or other serious situations such as important medical events. TEAEs were defined as events that started during the effective duration of treatment (ie, starting on or after the dose of PF-07081532 up to the final follow-up visit). AEs presented below were TEAEs. The investigator was required to use clinical judgment to assess the potential relationship between investigational product and each AE, to define an treatment-related AE.

Time frame: Day 1 to Day 36

Population: The safety analysis set included all participants who each took 1 dose of PF-07081532.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Without Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)All-causality TEAEs1 Participants
Without Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)Treatment-related TEAEs0 Participants
Mild Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)Treatment-related TEAEs0 Participants
Mild Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)All-causality TEAEs0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)All-causality TEAEs0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)Treatment-related TEAEs0 Participants
Severe Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)All-causality TEAEs1 Participants
Severe Hepatic ImpairmentNumber of Participants With Treatment Emergent Adverse Events (TEAEs)Treatment-related TEAEs1 Participants
Secondary

Number of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization Criteria

Vital signs abnormalities included: seated diastolic blood pressure (BP) increase and decrease from BL of \>=20mmHg or absolute value \<50mmHg; systolic BP increase and decrease from BL of \>=30mmHg or absolute value \<90mmHg; pulse rate \<40 or \>120bpm.

Time frame: From BL to Day 7

Population: The safety analysis set included all participants who each took 1 dose of PF-07081532.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Increase ≥20mmHg1 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Decrease ≥20mmHg0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Value <90mmHg0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value >120bpm0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Decrease ≥30mmHg0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value <40bpm0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Increase ≥30mmHg0 Participants
Without Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Value <50mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Decrease ≥30mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value >120bpm0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Value <90mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Increase ≥20mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Value <50mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Decrease ≥20mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Increase ≥30mmHg0 Participants
Mild Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value <40bpm0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Value <90mmHg0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Increase ≥30mmHg0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Increase ≥20mmHg0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Decrease ≥30mmHg2 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Decrease ≥20mmHg1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Value <50mmHg1 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value <40bpm0 Participants
Moderate Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value >120bpm0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value <40bpm0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Value <50mmHg0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Increase ≥20mmHg1 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaDiastolic BP Decrease ≥20mmHg0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Decrease ≥30mmHg0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaPulse Rate Value >120bpm0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Value <90mmHg0 Participants
Severe Hepatic ImpairmentNumber of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization CriteriaSystolic BP Increase ≥30mmHg0 Participants

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