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
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.
Investigators
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)