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PF-07265803

Phase 1

Healthy | Small molecule | Other |Pfizer, Inc.|Last Updated: Mar 29, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment6
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05286281A Study To Evaluate The Pharmacokinetics, Excretion, Mass Balance and Metabolism of PF-07265803PHASE1 COMPLETED 6Mar 31, 2022May 26, 2022Mar 29, 20241 United States
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Study Endpoints
Primary Endpoints
Total Recovery of Radioactivity in Urine, Expressed as Percentage of Total Radioactive Dose Administered
Predose, in intervals of 0-6, 6-12, 12-24, 24-48, 48-72, 72-96 hours postdose on Day 1, and each subsequent 24 hours interval up to discharge (maximum 14 days)

Radioactivity excreted in urine was reported as the percentage of the administered radioactivity excreted at each time interval, cumulatively through that interval and the total percent of dose recovered in urine.

Total Recovery of Radioactivity in Feces, Expressed as Percentage of Total Radioactive Dose Administered
Predose, in intervals of each 24 hours post dose on Day 1 up to discharge (maximum 14 days)

Radioactivity excreted in feces was reported as the percentage of the administered radioactivity excreted at each time interval, cumulatively through that interval and the total percent of dose recovered in feces.

Total Recovery of Radioactivity in Total Excretion (Urine + Feces), Expressed as Percentage of Total Radioactive Dose Administered
Predose, in intervals of each 24 hours post dose on Day 1 up to discharge (maximum 14 days)

Radioactivity excreted in urine and feces was reported as the percentage of the administered radioactivity excreted at each time interval, cumulatively through that interval and the total percent of dose recovered in urine and feces.

Relative Abundance of PF-07265803 and Its Metabolites in Plasma, Expressed as Percentage of Radioactivity
Predose, 0.5, 1, 2, 3, 4, 6, 9, 12, 24, 36, 48, 72, 96, 120 hours post dose on Day 1

Plasma homogenates were extracted for total radioactivity, and processed samples were analyzed by HPLC with radiochemical detection for quantitation of \[14C\]PF-07265803-derived components and by HRMS for identification of PF-07265803 and metabolites after a single 400-mg (100 μCi) oral dose of \[14C\]PF-07265803. Relative abundance of the metabolites of \[14C\]PF-07265803 in plasma based on \[14C\] quantitation was reported, expressed as percentage of radioactivity. PF-07265803 and four metabolites identified/characterized in human plasma including PF-07327859, PF-07327890, PF -07327860, and des(dimethylamino)-dioxy-PF-07265803 (m/z 461) were presented below. The plasma analysis was done with a single master pool sample (individual participants pooled based on time and from these a single master pool of all participants in one tube) due to the low amount of radioactivity in the plasma, hence there would be no mean or standard deviation.

Relative Abundance of PF-07265803 and Its Metabolites in Urine, Expressed as Percentage of Radioactivity
Predose, in intervals of 0-6, 6-12, 12-24, 24-48, 48-72, 72-96 hours postdose on Day 1, and each subsequent 24 hours interval up to discharge (maximum 14 days)

Urine homogenates were extracted for total radioactivity, and processed samples were analyzed by HPLC with radiochemical detection for quantitation of \[14C\]PF-07265803-derived components and by HRMS for identification of PF-07265803 and metabolites after a single 400-mg (100 μCi) oral dose of \[14C\]PF-07265803. In this outcome measure, relative abundance of the metabolites of \[14C\]PF-07265803 in urine based on \[14C\] quantitation was reported, expressed as percentage of radioactivity. PF-07265803 and four metabolites identified/characterized in human urine including PF-07327859, PF-07327890, PF-07327891, and des(dimethylamino)-dioxy-PF-07265803 (m/z 461) were presented below.

Relative Abundance of PF-07265803 and Its Metabolites in Feces, Expressed as Percentage of Radioactivity
Predose, in intervals of each 24 hours post dose on Day 1 up to discharge (maximum 14 days)

Fecal homogenates were extracted for total radioactivity, and processed samples were analyzed by HPLC with radiochemical detection for quantitation of \[14C\]PF-07265803-derived components and by HRMS for identification of PF-07265803 and metabolites after a single 400-mg (100 μCi) oral dose of \[14C\]PF-07265803. In this outcome measure, relative abundance of the metabolites of \[14C\]PF-07265803 in feces based on \[14C\] quantitation was reported, expressed as percentage of radioactivity. PF-07265803 and four metabolites identified/characterized in human urine including PF-07327859, PF-07327890, PF-07327891, and PF-07327860 were presented below.

Secondary Endpoints
Area Under the Plasma Concentration-Time Profile From Time 0 to Time of the Last Quantifiable Concentration (AUClast) of Total Radioactivity of [14C]PF-07265803 in Plasma
Predose, 0.5, 1, 2, 3, 4, 6, 9, 12, 24, 36, 48, 72, 96, 120 hours post dose on Day 1
Area Under the Plasma Concentration-Time Profile From Time 0 Extrapolated to Infinite Time (AUCinf) of Total Radioactivity of [14C]PF-07265803 in Plasma
Predose, 0.5, 1, 2, 3, 4, 6, 9, 12, 24, 36, 48, 72, 96, 120 hours post dose on Day 1
Maximum Plasma Concentration (Cmax) of Total Radioactivity of [14C]PF-07265803 in Plasma
Predose, 0.5, 1, 2, 3, 4, 6, 9, 12, 24, 36, 48, 72, 96, 120 hours post dose on Day 1
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PF-07265803EXPERIMENTALPF-07265803 is a p38 inhibitor formulated for oral delivery.
Interventions
NameTypeDescription
PF-07265803DRUGPF-07265803 is a p38 inhibitor formulated for oral delivery.
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Eligibility Criteria
Age Range18 Years — N/A
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Participants must be male and ≥18 years of age at the time of signing the informed consent. 2. Male participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and electrocardiogram (ECG) monitori...

Countries:United States
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