A Study in Healthy Adult Male Participants to Assess Absorption, Distribution, Metabolism and Excretion (ADME) of Radiolabeled PF-06865571.

A PHASE 1, OPEN-LABEL, FIXED-SEQUENCE, 2-PERIOD STUDY IN HEALTHY ADULT MALE PARTICIPANTS TO ASSESS THE EXTENT OF EXCRETION, ABSOLUTE BIOAVAILABILITY, FRACTION ABSORBED, AND PHARMACOKINETICS OF [14C]PF-06865571 USING A 14C-MICROTRACER APPROACH

This study is a Phase 1, open-label, non-randomized, 2-period, fixed-sequence, single-dose study of PF-06865571 in healthy male participants to characterize the ADME properties of [14C]PF-06865571 following oral administration; and to evaluate the absolute oral bioavailability (F) and fraction absorbed (Fa) of PF-06865571 following oral administration of unlabeled PF-06865571 and IV administration of [14C]PF-06865571.

Inclusion Criteria:

• Male participants, 18 to 60 years of age, inclusive, at the time of signing the informed consent document.
• Male participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac tests.
• Participants who are nonsmoking for at least 3 months at the time of signing the informed consent document.
• BMI of 17.5 to 30.4 kg/m2, inclusive; and a total body weight >50 kg (110 lb).

Exclusion Criteria:

• Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy).
• History of irregular bowel movements including irritable bowel syndrome or frequent episodes of diarrhea or constipation, defined by less than 1 bowel movement on average per 2 days, or lactose intolerance.
• History of HIV infection, hepatitis B, or hepatitis C; positive testing for HIV, HBsAg,or HCVAb. Hepatitis B vaccination is allowed.
• History of SARS-CoV-2 PCR or antibody (eg, IgG, IgM, etc) positive result would necessitate accompanying history of asymptomatic state for at least 6 months prior to screening.
• Use of prescription or nonprescription drugs.
• Previous administration with an unapproved drug within 60 days preceding the first dose of study intervention used in this study.
• A positive urine drug test.
• A positive urine cotinine test.
• A positive COVID-19 (SARS-CoV-2) PCR test.
• Blood donation (excluding plasma donations) of approximately 1 pint (500 mL) or more within 60 days prior to dosing.