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Clinical Trials/NCT05478603
NCT05478603
Completed
Phase 1

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

Pfizer2 sites in 1 country24 target enrollmentAugust 1, 2022

Overview

Phase
Phase 1
Intervention
PF-07081532
Conditions
Hepatic Impairment
Sponsor
Pfizer
Enrollment
24
Locations
2
Primary Endpoint
Maximum Plasma Concentration (Cmax) of PF-07081532
Status
Completed
Last Updated
last year

Overview

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.

Registry
clinicaltrials.gov
Start Date
August 1, 2022
End Date
April 5, 2023
Last Updated
last year
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Sponsor
Pfizer
Responsible Party
Sponsor

Eligibility Criteria

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.

Arms & Interventions

Group 1: PF-07081532 Participants without hepatic impairment

Participants without hepatic impairment will receive a single 20 mg dose of PF-07081532, administered orally as 1 PF-07081532 20 mg tablet.

Intervention: PF-07081532

Group 2: PF-07081532 Participants with mild hepatic impairment

Participants with mild hepatic impairment will receive a single 20 mg dose of PF-07081532, administered orally as 1 PF-07081532 20 mg tablet

Intervention: PF-07081532

Group 3: PF-07081532 Participants with moderate hepatic impairment

Participants with moderate hepatic impairment will receive a single 20 mg dose of PF-07081532, administered orally as 1 PF-07081532 20 mg tablet.

Intervention: PF-07081532

Group 4: PF-07081532 Participants with severe hepatic impairment

Participants with severe hepatic impairment will receive a single20 mg dose of PF-07081532, administered orally as 1 PF-07081532 20 mg tablet.

Intervention: PF-07081532

Outcomes

Primary Outcomes

Maximum Plasma Concentration (Cmax) of PF-07081532

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

Cmax is the maximum plasma concentration.

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

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

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

Unbound AUCinf (AUCinf,u) of PF-07081532

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

AUCinf,u is the unbound AUCinf.

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

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

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

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

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

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).

Unbound Cmax (Cmax,u) of PF-07081532

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

Cmax,u is the unbound Cmax.

Unbound AUClast (AUClast,u) of PF-07081532

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

AUClast,u is the unbound AUClast.

Secondary Outcomes

  • Number of Participants With Treatment Emergent Adverse Events (TEAEs)(Day 1 to Day 36)
  • Number of Participants With Clinical Laboratory Abnormalities (Without Regard to Baseline Abnormality)(From baseline (BL) to Day 7)
  • Number of Participants With Vital Signs Data Meeting the Pre-defined Categorical Summarization Criteria(From BL to Day 7)
  • Number of Participants With Electrocardiogram (ECG) Data Meeting the Pre-defined Categorical Summarization Criteria(From BL to Day 7)

Study Sites (2)

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