Clinical trial NCT05110027: Enpatoran Human Mass Balance and Absolute Bioavailability Study
Official title: Phase I, Open-Label, 2-Period, Single-Sequence Study to Evaluate the Mass Balance and Absorption, Disposition, Metabolism and Excretion of [14C]Enpatoran, and the Absolute Bioavailability of Enpatoran in Healthy Male Participants
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Healthy
Keywords: Microtracer
Microdose
Clinical Pharmacology
Lead sponsor: Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
Sponsor class: INDUSTRY
First posted: 2021-11-05
Enrollment: 7
Sex: MALE
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SEQUENTIAL
Primary purpose: TREATMENT

Brief summary: The purpose of Period 1 of this study is to provide a definitive quantitative characterization of the mass balance, and rates and routes of excretion of enpatoran, and to determine and quantify enpatoran and its metabolites in excreta (urine and feces) and plasma. The purpose of Period 2 of this study is to determine the absolute oral bioavailability of enpatoran. Total minimum duration of study participation for each participant is approximately 50 days.


Eligibility criteria: Inclusion Criteria:

* Are overtly healthy as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring (blood pressure, heart rate and 12-lead electrocardiogram)
* Have a body weight within 50 to 110 kilogram (kg) and Body mass index (BMI) within the range ≥ 18.0 and ≤ 30.0 kilogram per meter square (kg/m\^2)
* Other protocol defined inclusion criteria could apply

Exclusion Criteria:

* History or presence of clinically relevant respiratory, gastrointestinal, renal, hepatic, hematological, lymphatic, neurological, cardiovascular, psychiatric, musculoskeletal, genitourinary, immunological, dermatological, connective tissue diseases or disorders
* Prior history of cholecystectomy or splenectomy, and any clinically relevant surgery within 6 months prior to Screening
* Any surgical or medical condition which might significantly alter the absorption, distribution, metabolism and excretion (ADME) of drugs, or which may jeopardize the participant in case of participation in the study
* History of any malignancy
* History or presence of epilepsy, neurological disorders with seizure propensity or undiagnosed loss of consciousness, severe head trauma within 6 months or severe depression within 12 months prior to Screening), or neuropsychiatric conditions
* History of chronic or recurrent acute infection or any bacterial, viral, parasitic or fungal infections within 30 days prior to Screening and at any time between Screening and admission, or hospitalization due to infection within 6 months prior to Screening, or a history of herpes zoster within 12 months prior to Screening.
* History of drug hypersensitivity ascertained or presumptive allergy/hypersensitivity to the active drug substance and/or formulation ingredients; history of serious allergic reactions leading to hospitalization or any other hypersensitivity reaction in general, which may affect the safety of the participant and/or outcome of the study per the Investigator's discretion
* History of alcoholism or drug abuse within 1 year prior to Screening, or evidence of such abuse as indicated by the laboratory assays conducted during Screening
* Any condition, including findings in the laboratory tests, medical history, or other Screening assessments, that in the opinion of the Investigator constitutes an inappropriate risk or a contraindication for participation in the study or that could interfere with the study's objectives, conduct, or evaluation
* Other protocol defined exclusion criteria could apply

Primary outcomes:
measure: Period 1: Percent Urinary Recovery (feurine) of Total Radioactivity per Sampling Interval
timeFrame: -24-0 hours (pre-dose), 0-4, 4-12, 12-24, 24-48, 48-72, 72-96, 96-120, 120-144, and 144-168 hours after the initiation of the intravenous (IV) dose
measure: Period 1: Percent Fecal Recovery (fefeces) of Total Radioactivity per Sampling Interval
timeFrame: -24-0 hours (pre-dose), 0-24, 24-48, 48-72, 72-96, 96-120, 120-144, and 144-168 hours after the initiation of the intravenous (IV) dose
measure: Period 1: Percent Total Recovery in Urine and Feces (fetotal) of Total Radioactivity per Sampling Interval
timeFrame: Urine: -24-0 hours (pre-dose), 0-4, 4-12, 12-24, 24-48, 48-72, 72-96, 96-120, 120-144, and 144-168 hours post-dose; Feces: -24-0 hours (pre-dose), 0-24, 24-48, 48-72, 72-96, 96-120, 120-144, and 144-168 hours post-dose of IV injection
measure: Period 1: Pharmacokinetic Plasma and Blood Concentration of Total Radioactivity
timeFrame: Pre-dose (Day 1), 15, 30 minutes, 1, 1.5, 2.0, 4.0, 6.0, 8.0, 12, 24, 48, 72, 96, 120, 144, 168 hours post-dose
measure: Period 1: Pharmacokinetic Plasma Concentration of Enpatoran
timeFrame: Pre-dose (Day 1), 15, 30 minutes, 1, 1.5, 2.0, 4.0, 6.0, 8.0, 12, 24, 48, 72, 96, 120, 144, 168 hours post-dose
measure: Period 2: Pharmacokinetic Plasma and Blood Concentration of [14C]Enpatoran and Enpatoran
timeFrame: [14C]Enpatoran: Pre-dose, 5, 15, 30 minutes, 1, 1.5, 2, 4, 6, 8, 12, 24, 48, 72 hours post-dose; Enpatoran: Pre-dose, 30 minutes, 2, 4, 6, 8, 12, 24, 48, 72 hours post-dose
Secondary outcomes:
measure: Period 1 and 2: Safety Profile as Assessed by Incidence of Treatment-Emergent Adverse Events (AEs), Serious Adverse Events (SAEs), Laboratory Variables, Vital Signs and Electrocardiogram (ECG) Measurements
timeFrame: Period 1: Baseline up to Day 14; Period 2: Baseline up to Day 4
Other outcomes:
Locations:
city: Groningen
country: Netherlands
facility: PRA Health Sciences
Study officials:
affiliation: Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
name: Medical Responsible
role: STUDY_DIRECTOR
References: