A Clinical Trial of the Study Medicine (Called Fosmanogepix) in People With Hepatic Dysfunction.

Sponsor
Pfizer (Industry)
Overall Status
Recruiting
CT.gov ID
NCT05582187
Collaborator
(none)
18
1
3
13.5
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Study Details

Study Description

Brief Summary

The purpose of this study is to understand how fosmanogepix is processed in people with varying degrees of liver dysfunction.

This study is seeking participants who have:
  • stable loss of liver function with mild, moderate, or advanced severity

  • none of underlying conditions possibly affecting the study medicine being absorbed by the body

  • liver dysfunction not due to acute worsening of liver

All participants will receive 1 dose of fosmanogepix by mouth before breakfast on the first day at the study clinic. Serial blood samples will be collected to understand how fosmanogepix is changed and eliminated from the body. Participants will also receive physical examination and other tests. This will help to understand if fosmanogepix is safe.

Participants will be involved in this study for 4 to 9 weeks (maximum). There will be 2 to 4 study visits at the study clinic.

Condition or Disease Intervention/Treatment Phase
Phase 1

Study Design

Study Type:
Interventional
Anticipated Enrollment :
18 participants
Allocation:
Non-Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
This is an open label, single dose, parallel cohort studyThis is an open label, single dose, parallel cohort study
Masking:
None (Open Label)
Primary Purpose:
Basic Science
Official Title:
A PHASE 1, OPEN-LABEL, SINGLE-DOSE, PARALLEL COHORT STUDY TO ASSESS THE PHARMACOKINETICS AND SAFETY OF FOSMANOGEPIX (PF 07842805) IN ADULT PARTICIPANTS WITH VARYING DEGREES OF HEPATIC IMPAIRMENT
Actual Study Start Date :
Oct 31, 2022
Anticipated Primary Completion Date :
Dec 17, 2023
Anticipated Study Completion Date :
Dec 17, 2023

Arms and Interventions

Arm Intervention/Treatment
Experimental: Cohort 1: Fosmanogepix participants with mild hepatic impairment

Participants with mild hepatic impairment will receive a single dose of fosmanogepix, administered orally as 1 fosmanogepix tablet under fasted conditions.

Drug: Fosmanogepix
a single dose of fosmanogepix administered by mouth under fasted conditions
Other Names:
  • PF-07842805
  • Experimental: Cohort 2: Fosmanogepix Participants with moderate hepatic impairment

    Participants with moderate hepatic impairment will receive a single dose of fosmanogepix, administered orally as 1 fosmanogepix tablet under fasted conditions.

    Drug: Fosmanogepix
    a single dose of fosmanogepix administered by mouth under fasted conditions
    Other Names:
  • PF-07842805
  • Experimental: Cohort 3: Fosmanogepix Participants with severe hepatic impairment

    Participants with severe hepatic impairment will receive a single dose of fosmanogepix, administered orally as 1 fosmanogepix tablet under fasted conditions.

    Drug: Fosmanogepix
    a single dose of fosmanogepix administered by mouth under fasted conditions
    Other Names:
  • PF-07842805
  • Outcome Measures

    Primary Outcome Measures

    1. Maximum Observed Plasma Concentration (Cmax) of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    2. Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    3. Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    4. Unbound Maximum Observed Plasma Concentration (Cmaxu) of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    5. Unbound Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClastu) of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    6. Unbound Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)u] of manogepix [pre-dose, 1, 2, 3, 4, 5, 6, 12, 24, 48, 96, 168, 240 hours postdose]

    Secondary Outcome Measures

    1. Number of Participants Reporting Treatment-emergent adverse events (AEs) [Screening to follow-up (Day 28-35)]

    2. Number of participants with clinically significant change from baseline in vital signs [From Day -1 to Day 11]

    3. Number of participants with clinically significant change from baseline in laboratory parameters [From Day -1 to Day 11]

    4. Number of participants with clinically significant change from baseline in physical exams [From Day -1 to Day 11]

    5. Number of participants with clinically significant change from baseline in electrocardiogram (ECG) findings [From Day -1 to Day 11]

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 75 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Body mass index (BMI) of 17.5 to 40.0 kg/m2, inclusive; and a total body weight greater than 50 kg (greater than 110 lb)

    • Stable hepatic impairment that meets the criteria for Class A, B, or C of the Child Pugh classification with no clinically significant change in disease status within the 28 days prior to the screening visit

    • Stable concomitant medications for the management of individual participants' medical history

    Exclusion Criteria:
    • Any condition possibly affecting drug absorption (eg, prior bariatric surgery, gastrectomy, ileal resection);

    • Ongoing medical history of neurological disorders including abnormal movements or seizures (Note exception: stable history of peripheral neuropathy);

    • Hepatic carcinoma or hepatorenal syndrome or limited predicted life expectancy;

    • A diagnosis of hepatic dysfunction secondary to any acute ongoing hepatocellular process that is documented by medical history, physical examination, liver biopsy, hepatic ultrasound, computerized tomography scan, or MRI;

    • Signs of clinically active Grade 2, 3 or 4 hepatic encephalopathy (ie, equal or greater than Grade 2 Portal Systemic Encephalopathy score);

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Genesis Clinical Research, LLC Tampa Florida United States 33603

    Sponsors and Collaborators

    • Pfizer

    Investigators

    • Study Director: Pfizer CT.gov Call Center, Pfizer

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Pfizer
    ClinicalTrials.gov Identifier:
    NCT05582187
    Other Study ID Numbers:
    • C4791019
    First Posted:
    Oct 17, 2022
    Last Update Posted:
    Dec 15, 2022
    Last Verified:
    Dec 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Pfizer
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Dec 15, 2022