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A Study Assessing the Mass Balance, Pharmacokinetics, and Metabolite Profiles of a Single Oral Dose of [14C]INCB099280 in Healthy Male Participants

An Open-Label Study Assessing the Mass Balance, Pharmacokinetics, and Metabolite Profiles of a Single Oral Dose of [14C]INCB099280 in Healthy Male Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06309394
Enrollment
5
Registered
2024-03-13
Start date
2024-05-15
Completion date
2024-06-04
Last updated
2025-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Participants

Keywords

INCB099280

Brief summary

This study is being conducted to assess the Mass Balance, Pharmacokinetics, and Metabolite Profiles of a Single Oral Dose of \[14C\]INCB099280 in Healthy Male Participants.

Interventions

INCB099280 will be administered orally, followed approximately 10 minutes later by an oral dose solution of radiolabeled INCB099280.

Sponsors

Incyte Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
35 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Ability to comprehend and willingness to sign a written ICF for the study. * Healthy males, as determined by the investigator based upon physical examinations, ECGs, vital signs, and safety laboratory assessments, aged 35 to 55 years, inclusive, at the time of signing the ICF. * Body mass index between 18.0 and 32.0 kg/m2, inclusive, at the time of screening. * No clinically significant findings in screening evaluations (eg, clinical, laboratory, vital signs, and ECG) at screening and Day -1. * Ability to swallow and retain oral medication.

Exclusion criteria

* History of clinically significant respiratory, renal, gastrointestinal, endocrine, hematopoietic, psychiatric, and/or neurological disease as judged by the investigator. * History of cardiovascular, cerebrovascular, peripheral vascular, or thrombotic disease or uncontrolled hypertension (systolic blood pressure \> 140 mm Hg or diastolic blood pressure \> 90 mmHg at screening, confirmed by repeat testing). * Presence of a malabsorption syndrome (eg, Crohn's disease or chronic pancreatitis) that could possibly affect drug absorption. * Current or recent (within 6 months before screening), clinically significant, gastrointestinal disease or surgery (including cholecystectomy, excluding appendectomy) that could affect the absorption of study drug. * Any major surgery within 6 months of screening. * Donation of blood to a blood bank or in a clinical study (except a screening visit) within 3 months before screening (within 2 weeks for plasma donation). * Positive test for HBV, HCV, or HIV at screening. Participants whose HBV results are compatible with prior immunization or immunity due to infection may be included at the discretion of the investigator. * Regular alcohol consumption \> 21 units per week (1 unit = 8 oz of beer or a 25-mL shot of a 40% spirit; 1.5 to 2 units = a 125-mL glass of wine, depending on type). * Positive breath test for alcohol or positive urine screen for drugs of abuse (confirmed by repeat) at screening or admission (Day -1). * Treatment with another investigational medication within 90 days or 5 half-lives (whichever is longer) before Day 1 or current enrollment in another investigational drug study. * Participation in any clinical study involving a 14C-radiolabeled investigational product within 12 months prior to admission (Day -1). * Radiation exposure, including that from the present study, excluding background radiation but including diagnostic x-rays and other medical exposures, exceeding 5 mSv in the last 12 months or 10 mSv in the last 5 years. No occupationally exposed worker, as defined in the Ionising Radiation Regulations 2017, shall participate in the study. * History of tobacco- or nicotine-containing product use within 1 month before screening. Consumption of tobacco- or nicotine-containing products 72 hours before admission (Day -1) until CRU discharge is not permitted. Breath test for carbon monoxide \> 10 ppm (confirmed by repeat) at screening or admission (Day -1). * Use of prescription drugs within 14 days before Day 1 or nonprescription medications/products (including vitamins, minerals, and phytotherapeutic, herbal, or plant-derived preparations) within 7 days before Day 1 until CRU discharge. However, paracetamol up to 4000 mg Q24H and ibuprofen up to 600 mg Q24H are permitted. Other protocol-defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Total Recovery (Urine + Feces) of the Administered Radioactivity264 hours in urine; 408 hours in fecesRadioactivity in urine and feces was reported as the percentage of the administered radioactivity excreted.

Secondary

MeasureTime frameDescription
Abundance of INCB099280 Metabolites Detected in Feces0 hours (predose) and up to 96 hours post-doseHomogenized fecal samples from individual participants were pooled for each collection interval by taking a fixed percentage of the total amount excreted from each collection interval/participant. The reported values are single measurements of pooled plasma or fecal samples; therefore, no statistical analysis is possible, and data have been reported with a measure type of number.
Cmax of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Cmax was defined as the maximum observed plasma or serum concentration of INCB099280.
Tmax of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)tmax was defined as the time to the maximum concentration of INCB099280.
AUC0-t of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of INCB099280.
AUC0-∞ of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity.
t½ of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)t½ was defined as the apparent terminal-phase disposition half-life of INCB099280.
CL/F of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)CL/F was defined as the apparent oral dose clearance of INCB099280.
Vz/F of INCB0992800 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Vz/F was defined as the maximum observed plasma or serum concentration of INCB099280.
Cmax of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Cmax was defined as the maximum observed concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Tmax of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)tmax was defined as the time to the maximum concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
AUC0-t of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Abundance of INCB099280 Detected in Plasma0 hours (predose) and up to 24 hours post-dosePlasma samples for metabolism investigations were obtained at 0, 1, 2, 4, 8, 12, 16, and 24 hours post-dose and were pooled across participants at each timepoint. TRPA=total radioactive peak area. The reported values are single measurements of pooled plasma or fecal samples; therefore, no statistical analysis is possible, and data have been reported with a measure type of number.
t½ of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)t½ was defined as the apparent terminal-phase disposition half-life of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
CL/F of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)CL/F was defined as the apparent oral dose clearance of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Vz/F of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Vz/F was defined as the maximum observed plasma or serum concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Cmax of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Cmax was defined as the maximum observed concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Tmax of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)tmax was defined as the time to the maximum concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
AUC0-t of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
AUC0-∞ of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity. Additional samples were collected every 24 hours until discharge (up to 264 hours).
t½ of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)t½ was defined as the apparent terminal-phase disposition half-life of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
CL/F of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)CL/F was defined as the apparent oral dose clearance of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Vz/F of Total Radioactivity in Plasma0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)Vz/F was defined as the maximum observed plasma or serum concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).
Number of Participants With Any Treatment-emergent Adverse Event (TEAE)up to Day 22An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. An AE could be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study treatment. A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug.
AUC0-∞ of Total Radioactivity in Blood0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Countries

United Kingdom

Participant flow

Participants by arm

ArmCount
INCB099280 400 mg + [14C]INCB099280 78.3 μCi
Participants received a single dose of INCB099280 400 milligrams (mg) administered in tablet form (4 × 100-mg tablets) followed approximately 10 minutes later by an oral dose solution containing 78.3 microcuries (μCi) (2.9 megabecquerel \[MBq\]) of \[14C\]INCB099280 (not more than 97.2 μCi \[3.6 MBq\]).
5
Total5

Baseline characteristics

CharacteristicINCB099280 400 mg + [14C]INCB099280 78.3 μCi
Age, Continuous44.2 years
STANDARD_DEVIATION 5.81
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
5 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 5
other
Total, other adverse events
1 / 5
serious
Total, serious adverse events
0 / 5

Outcome results

Primary

Total Recovery (Urine + Feces) of the Administered Radioactivity

Radioactivity in urine and feces was reported as the percentage of the administered radioactivity excreted.

Time frame: 264 hours in urine; 408 hours in feces

Population: Pharmacokinetic (PK)-Evaluable Population: all participants who received the study treatment and provided at least 1 postdose PK sample.

ArmMeasureValue (MEDIAN)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiTotal Recovery (Urine + Feces) of the Administered Radioactivity83.2 percentage of radioactivity
Secondary

Abundance of INCB099280 Detected in Plasma

Plasma samples for metabolism investigations were obtained at 0, 1, 2, 4, 8, 12, 16, and 24 hours post-dose and were pooled across participants at each timepoint. TRPA=total radioactive peak area. The reported values are single measurements of pooled plasma or fecal samples; therefore, no statistical analysis is possible, and data have been reported with a measure type of number.

Time frame: 0 hours (predose) and up to 24 hours post-dose

Population: PK-Evaluable Population

ArmMeasureGroupValue (NUMBER)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma1 hour post-dose33.4 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma2 hours post-dose70.3 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma4 hours post-dose57.2 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma8 hours post-dose35.3 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma12 hours post-dose38.3 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma16 hours post-dose44.9 percentage of TRPA
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Detected in Plasma24 hours post-dose23.2 percentage of TRPA
Secondary

Abundance of INCB099280 Metabolites Detected in Feces

Homogenized fecal samples from individual participants were pooled for each collection interval by taking a fixed percentage of the total amount excreted from each collection interval/participant. The reported values are single measurements of pooled plasma or fecal samples; therefore, no statistical analysis is possible, and data have been reported with a measure type of number.

Time frame: 0 hours (predose) and up to 96 hours post-dose

Population: PK-Evaluable Population

ArmMeasureGroupValue (NUMBER)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesINCB099280, 0 to 24 hours post-dose1.98 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesINCB099280, 24 to 48 hours post-dose13.3 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesINCB099280, 48 to 72 hours post-dose36.6 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesINCB099280, 72 to 96 hours post-dose5.37 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesM12, 0 to 24 hours post-dose0 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesM12, 24 to 48 hours post-dose2.30 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesM12, 48 to 72 hours post-dose4.06 percentage of total dosed radioactivity
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAbundance of INCB099280 Metabolites Detected in FecesM12, 72 to 96 hours post-dose1.63 percentage of total dosed radioactivity
Secondary

AUC0-∞ of INCB099280

AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-∞ of INCB09928011200 hours * nanomolarGeometric Coefficient of Variation 117
Secondary

AUC0-∞ of Total Radioactivity in Blood

AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Analysis was not conducted as %AUCextrapolation ≥ 20%.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-∞ of Total Radioactivity in Blood37200 hours * nanomolarGeometric Coefficient of Variation 151
Secondary

AUC0-∞ of Total Radioactivity in Plasma

AUC0-∞ was defined as the area under the single-dose plasma or serum concentration-time curve extrapolated to time of infinity. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Only participants with available data were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-∞ of Total Radioactivity in Plasma18500 hours * nanomolarGeometric Coefficient of Variation 105
Secondary

AUC0-t of INCB099280

AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-t of INCB09928011100 hours * nanomolarGeometric Coefficient of Variation 118
Secondary

AUC0-t of Total Radioactivity in Blood

AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-t of Total Radioactivity in Blood14100 hours * nanomolarGeometric Coefficient of Variation 79.5
Secondary

AUC0-t of Total Radioactivity in Plasma

AUC0-t was defined as the area under the steady-state plasma or serum concentration-time curve up to the last measurable concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiAUC0-t of Total Radioactivity in Plasma14100 hours * nanomolarGeometric Coefficient of Variation 126
Secondary

CL/F of INCB099280

CL/F was defined as the apparent oral dose clearance of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCL/F of INCB09928046.9 liters per hourGeometric Coefficient of Variation 117
Secondary

CL/F of Total Radioactivity in Blood

CL/F was defined as the apparent oral dose clearance of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Analysis was not conducted as %AUCextrapolation ≥ 20%.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCL/F of Total Radioactivity in Blood14.2 liters per hourGeometric Coefficient of Variation 151
Secondary

CL/F of Total Radioactivity in Plasma

CL/F was defined as the apparent oral dose clearance of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Only participants with available data were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCL/F of Total Radioactivity in Plasma28.5 liters per hourGeometric Coefficient of Variation 105
Secondary

Cmax of INCB099280

Cmax was defined as the maximum observed plasma or serum concentration of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCmax of INCB099280994 nanomolarGeometric Coefficient of Variation 90.8
Secondary

Cmax of Total Radioactivity in Blood

Cmax was defined as the maximum observed concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCmax of Total Radioactivity in Blood1010 nanomolarGeometric Coefficient of Variation 61.1
Secondary

Cmax of Total Radioactivity in Plasma

Cmax was defined as the maximum observed concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiCmax of Total Radioactivity in Plasma1450 nanomolarGeometric Coefficient of Variation 69.3
Secondary

Number of Participants With Any Treatment-emergent Adverse Event (TEAE)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. An AE could be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study treatment. A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug.

Time frame: up to Day 22

Population: Safety Population: all participants who received the study treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiNumber of Participants With Any Treatment-emergent Adverse Event (TEAE)1 Participants
Secondary

t½ of INCB099280

t½ was defined as the apparent terminal-phase disposition half-life of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCit½ of INCB09928014.8 hoursGeometric Coefficient of Variation 17.9
Secondary

t½ of Total Radioactivity in Blood

t½ was defined as the apparent terminal-phase disposition half-life of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Analysis was not conducted as Rsq\_adjusted ≤ 0.7 and/or %AUCextrapolation ≥ 20%.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCit½ of Total Radioactivity in Blood36.1 hoursGeometric Coefficient of Variation 321
Secondary

t½ of Total Radioactivity in Plasma

t½ was defined as the apparent terminal-phase disposition half-life of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Only participants with available data were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCit½ of Total Radioactivity in Plasma8.88 hoursGeometric Coefficient of Variation 57.6
Secondary

Tmax of INCB099280

tmax was defined as the time to the maximum concentration of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (MEDIAN)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiTmax of INCB0992804.0 hours
Secondary

Tmax of Total Radioactivity in Blood

tmax was defined as the time to the maximum concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (MEDIAN)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiTmax of Total Radioactivity in Blood4.0 hours
Secondary

Tmax of Total Radioactivity in Plasma

tmax was defined as the time to the maximum concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (MEDIAN)
INCB099280 400 mg + [14C]INCB099280 78.3 μCiTmax of Total Radioactivity in Plasma4.0 hours
Secondary

Vz/F of INCB099280

Vz/F was defined as the maximum observed plasma or serum concentration of INCB099280.

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiVz/F of INCB0992801000 litersGeometric Coefficient of Variation 91.3
Secondary

Vz/F of Total Radioactivity in Blood

Vz/F was defined as the maximum observed plasma or serum concentration of total radioactivity in blood. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Analysis was not conducted as %AUCextrapolation ≥ 20%.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiVz/F of Total Radioactivity in Blood738 litersGeometric Coefficient of Variation 69.7
Secondary

Vz/F of Total Radioactivity in Plasma

Vz/F was defined as the maximum observed plasma or serum concentration of total radioactivity in plasma. Additional samples were collected every 24 hours until discharge (up to 264 hours).

Time frame: 0 hours (predose) and 0.5, 1, 2, 4, 6, 8, 12, and 16 hours post-dose (Day 1); 24 and 36 hours post-dose (Day 2); 48 hours post-dose (Day 3), 72 hours post-dose (Day 4), 96 hours post-dose (Day 5), 120 hours post-dose (Day 6)

Population: PK-Evaluable Population. Only participants with available data were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
INCB099280 400 mg + [14C]INCB099280 78.3 μCiVz/F of Total Radioactivity in Plasma365 litersGeometric Coefficient of Variation 40.4

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026