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A Study to Understand What the Body Does to the Study Medicine Called PF-07799544 When Taken by Healthy Adults

27 juli 2026 bijgewerkt door: Pfizer

A PHASE 1, OPEN-LABEL, FIXED SEQUENCE, 2-PERIOD STUDY IN HEALTHY ADULT PARTICIPANTS TO ASSESS THE MASS BALANCE, ABSOLUTE BIOAVAILABILITY, FRACTION ABSORBED, AND PHARMACOKINETICS OF [14C]PF-07799544 USING A 14C-MICROTRACER APPROACH

For this study, the study medicine has been specially prepared to contain radiolabeled carbon [14C]. [14C] is a naturally occurring radioactive form of the element carbon. Adding a low dose of radiation to the study medicine does not change how the medicine works but helps to see how the medicine appears in the blood, urine, and stool after it is given. This type of study is called a radiolabeled study.

The purpose of this radiolabeled study is to learn how a certain amount of [14C] PF-07799544 is taken up into the bloodstream and removed from the body.

The study is seeking participants who are:

Male Ages 18 to 55 years of age confirmed to be healthy based on medical and physical tests.

Weigh more than 50 kilograms (kg) and have a body mass index of 17.5 to 32 kg per meter squared.

The study consists of two parts. In part one, all participants will receive one full dose of [14C]PF-07799544 by mouth.

Part two will begin at least 14 days after the dose in part one. In part two, participants will receive one full dose of PF-07799544 by mouth and one small dose of [14C] PF-07799544 by intravenous (IV) infusion. IV infusion will be directly injected into the veins.

To understand how the medicine is processed in the body, samples of blood, urine, feces, and vomit (if any) will be collected after each dose is given. This will help understand:

How much PF-07799544 is taken up into the bloodstream when taken by mouth compared to the dose given by IV How the body removes it from the blood steam. Participants will take part in the study for about 7 weeks, including evaluation at the start and follow-up period.

Studie Overzicht

Toestand

Actief, niet wervend

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Not Provided.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

9

Fase

  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Wisconsin
      • Madison, Wisconsin, Verenigde Staten, 53704
        • Fortrea Clinical Research Unit Inc.

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

Males 18 to 55years of age, inclusive, at screening who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, vital signs, and 12-lead ECGs.

BMI of 17.5-32 kg/m2; and a total body weight >50 kg (110 lb).

Exclusion Criteria:

Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing.

Previous administration of an investigational product (drug or vaccine) within 30 days or 5 half-lives preceding the first dose of study intervention used in this study (whichever is longer). Participation in studies of other investigational products (drug or vaccine) at any time during participation in this study.

Total 14C radioactivity measured in plasma should not exceed 2.5 × standard biological carbon ratio.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Fundamentele wetenschap
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Cohort 1
Participants will receive one dose of [14C] PF-07799544 by mouth in Period 1. After a washout, participants will receive one dose of PF-07799544 by mouth and one intravenous (IV) infusion of [14C] PF-07799544 in Period 2
Geneesmiddel: Oral [14C] PF-07799544
A single oral dose of [14C] PF-07799544 will be administered as an extemporaneous suspension in Period 1.
Geneesmiddel: Oral Unlabeled PF-07799544
A single oral dose of unlabeled PF-07799544 will be administered as extemporaneous solution in Period 2.
Geneesmiddel: IV [14C] PF-07799544
A single IV infusion of [14C] PF-07799544 will be administered at the approximate Tmax after administration of the unlabeled oral dose of PF-07248144 in Period 2.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Total recovery (%) of radioactivity in urine, feces and vomitus (if any), expressed as a percent of total oral radioactive dose administered.
Tijdsspanne: Period 1 pre-dose to maximum days 15
To characterize the extent of excretion of total radioactivity in urine, feces and vomitus (if any) following administration of a single oral dose of [14C]PF-07799544.
Period 1 pre-dose to maximum days 15
Metabolic profiling/identification and determination of relative abundance of [14C]PF-07799544 and the metabolites of PF-07799544 in plasma, urine and feces, if possible.
Tijdsspanne: Period 1 pre-dose to maximum days 15
To characterize the metabolic profile and identify the circulating and excreted metabolites of PF- 07799544 following administration of a single oral dose of [14C]PF-07799544.
Period 1 pre-dose to maximum days 15

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
The ratio of dose-normalized AUCinf (if data permit, otherwise AUClast) of oral PF-07799544 to IV [14C]PF-07799544.
Tijdsspanne: Period 2 pre-dose to maximum days 6.
To determine the oral absolute bioavailability (F) of PF-07799544 from a single oral dose of PF-07799544 compared to a single IV microtracer of [14C]PF-07799544.
Period 2 pre-dose to maximum days 6.
The ratio of total recovered radioactivity 14C in urine following single dose administration of [14C]PF-07799544 orally in Period 1 and IV microtracer, microdose administration of [14C]PF-07799544 in Period 2.
Tijdsspanne: Period 1 pre-dose to maximum days 15; Period 2 pre-dose to maximum days 6.
To determine the fraction of PF-07799544 dose absorbed (Fa) from a single oral dose of [14C]PF-07799544.
Period 1 pre-dose to maximum days 15; Period 2 pre-dose to maximum days 6.
Number of Participants With Treatment Emergent Adverse Events.
Tijdsspanne: Baseline up to 28 to 35 days post last study intervention dose.
To evaluate the safety and tolerability of PF-07799544, administered as a single oral dose of [14C]PF-07799544 or a single oral dose of PF-07799544 followed by administration of a single IV microdose of [14C]PF-07799544.
Baseline up to 28 to 35 days post last study intervention dose.
Number of Participants with Treatment Emergent Clinically Significant Laboratory Abnormalities.
Tijdsspanne: Baseline up to 28 to 35 days post last study intervention dose.
To evaluate the safety and tolerability of PF-07799544, administered as a single oral dose of [14C]PF-07799544 or a single oral dose of PF-07799544 followed by administration of a single IV microdose of [14C]PF-07799544.
Baseline up to 28 to 35 days post last study intervention dose.
Number of Participants With Treatment Emergent Clinically Significant Abnormal Vital Signs.
Tijdsspanne: Baseline up to 28 to 35 days post last study intervention dose.
To evaluate the safety and tolerability of PF-07799544, administered as a single oral dose of [14C]PF-07799544 or a single oral dose of PF-07799544 followed by administration of a single IV microdose of [14C]PF-07799544.
Baseline up to 28 to 35 days post last study intervention dose.
Number of Participants With Treatment Emergent Clinically Significant Physical Examination Abnormalities.
Tijdsspanne: Baseline up to 28 to 35 days post last study intervention dose.
To evaluate the safety and tolerability of PF-07799544, administered as a single oral dose of [14C]PF-07799544 or a single oral dose of PF-07799544 followed by administration of a single IV microdose of [14C]PF-07799544.
Baseline up to 28 to 35 days post last study intervention dose.
Number of Participants With Treatment Emergent Clinically Significant Abnormal ECG Measurements.
Tijdsspanne: Baseline up to 28 to 35 days post last study intervention dose.
To evaluate the safety and tolerability of PF-07799544, administered as a single oral dose of [14C]PF-07799544 or a single oral dose of PF-07799544 followed by administration of a single IV microdose of [14C]PF-07799544.
Baseline up to 28 to 35 days post last study intervention dose.

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Pfizer

Onderzoekers

  • Studie directeur: Pfizer CT.gov Call Center, Pfizer

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Nuttige links

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

18 mei 2026

Primaire voltooiing (Werkelijk)

2 juli 2026

Studie voltooiing (Geschat)

17 augustus 2026

Studieregistratiedata

Eerst ingediend

5 mei 2026

Eerst ingediend dat voldeed aan de QC-criteria

5 mei 2026

Eerst geplaatst (Werkelijk)

11 mei 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

28 juli 2026

Laatste update ingediend die voldeed aan QC-criteria

27 juli 2026

Laatst geverifieerd

1 juli 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • C4901004

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Beschrijving IPD-plan

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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