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A Study of Carbon-14-Labelled [14C] LOXO-305 (Pirtobrutinib) in Healthy Male Participants

A Phase I, Open-label, Two-part Study of the Absorption, Metabolism, Excretion, and the Absolute Bioavailability of [14C]-LOXO-305 in Healthy Male Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06180954
Enrollment
9
Registered
2023-12-26
Start date
2020-09-23
Completion date
2020-11-06
Last updated
2025-01-13

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

Conditions

Healthy

Brief summary

The main purpose of this study is to evaluate the absorption, metabolism, and excretion (AME) profiles of pirtobrutinib (LOXO-305), to identify and characterize metabolites of pirtobrutinib (LOXO-305), and to assess the safety and tolerability of \[14C\] LOXO-305 in Part 1. To determine the absolute bioavailability of pirtobrutinib (LOXO-305), to evaluate the plasma concentration of total radioactivity, to evaluate the urinary excretion of \[14C\] LOXO-305 and total radioactivity, to evaluate the fecal excretion of \[14C\] LOXO-305 and total radioactivity, and to assess the safety and tolerability of pirtobrutinib (LOXO-305), and \[14C\] LOXO-305 in Part 2. Blood tests will be performed to check how much pirtobrutinib (LOXO-305) and \[14C\] LOXO-305 gets into the bloodstream and how long it takes the body to eliminate it. The study will last up to approximately 60 days for Part 1 and approximately 47 days for Part 2.

Interventions

Administered orally

DRUG[14C]-LOXO-305

Administered orally

Sponsors

Loxo Oncology, Inc.
CollaboratorINDUSTRY
Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

This is a 2-part study.

Eligibility

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

Inclusion criteria

* Must have Body mass index (BMI) within the range of 18.5 to 32.0 kilograms per square meter (kg/m²), inclusive * Male participants in good health, determined by no clinically significant findings from medical history, 12-lead Electrocardiogram (ECG), vital sign measurements, or clinical laboratory evaluations as assessed by the investigator * Participants who are capable of fathering a child must agree to use contraception from the time of the dose administration through 6 months after the last dose of LOXO-305 administration * History of a minimum of 1 bowel movement per day

Exclusion criteria

* History or presence of any diseases or conditions of clinical significance by the Investigator (or designee) and/or Sponsor * Positive serologic test for hepatitis B surface antigen (HBsAg), hepatitis B virus (HBV) core antibody, hepatitis C virus (HCV) antibody, or human immunodeficiency virus (HIV) antibody at Screening * Positive polymerase chain reaction (PCR) test for COVID-19 at Screening or Check-in (Day -1) * Known ongoing alcohol and/or drug abuse within 2 years prior to Screening * History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the Investigator (or designee) * Part 1 only: Participation in a radiolabeled drug study where exposures are known to the Investigator (or designee) within the previous 4 months prior to Check-in (Day -1) or participation in a radiolabeled drug study where exposures are not known to the Investigator (or designee) within the previous 6 months prior to Check-in (Day -1). * Part 2 only: Participation in any other radiolabeled investigational study drug trial within 12 months prior to Check-in (Day -1). Any previous radiolabeled study drug must have been received more than 12 months prior to Check-in (Day -1).

Design outcomes

Primary

MeasureTime frameDescription
Part 1: Pharmacokinetics (PK): Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-inf of LOXO-305 in plasma.
Part 1: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-inf of total radioactivity in plasma and whole blood.
Part 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-t of LOXO-305 in plasma.
Part 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-t of total radioactivity in plasma and whole blood.
Part 1: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseCmax of LOXO-305 in plasma.
Part 1: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseCmax of total radioactivity in plasma and whole blood.
Part 1: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseTmax of LOXO-305 in plasma.
Part 1: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseTmax of total radioactivity in plasma and whole blood.
Part 1: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doset1/2 of LOXO-305 in plasma.
Part 1: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doset1/2 of total radioactivity in plasma and whole blood.
Part 1: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseCL/F of LOXO-305 in plasma.
Part 1: PK: Apparent Volume of Distribution (Vz/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseVz/F of LOXO-305 in plasma.
Part 1: PK: Ratio of AUC0-inf of Plasma LOXO-305 to AUC0-inf of Plasma Total RadioactivityPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-inf of plasma LOXO-305 relative to AUC0-inf of plasma total radioactivity, expressed in ratio.
Part 1: PK: Ratio of AUC0-inf of Whole Blood Total Radioactivity to AUC0-inf of Plasma Total RadioactivityPre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseAUC0-inf of whole blood total radioactivity relative to AUC0-inf of plasma total radioactivity, expressed in ratio.
Part 1: PK: Cumulative Amount of Total Radioactivity Excreted in UrinePre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe urine sampling time points from pre-dose through 360 hours post-dose were used to assess this outcome.
Part 1: PK: Cumulative Amount of Total Radioactivity Excreted in Feces0 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe feces sampling time points from the 0 hour (i.e. time of dose) through 360 hours post-dose were used to assess this outcome.
Part 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces0 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe feces sampling time points from the 0 hour (i.e. time of dose) through 360 hours post-dose were used to assess this outcome.
Part 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in UrinePre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe urine sampling time points from pre-dose through 360 hours post-dose were used to assess this outcome.
Part 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-3051, 2, 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264 h post-doseThe metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in plasma using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.
Part 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305Pre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in urine using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.
Part 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-3050 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-doseThe metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in feces using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.
Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.AUC0-inf of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.AUC0-inf of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.AUC0-inf of total radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseAUC0-t of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.AUC0-t of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.AUC0-t of Total Radioactivity in Plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseCmax of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.Cmax of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.Cmax of Total Radioactivity in Plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseTmax of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Time to Maximum Observed Concentration (Tmax) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.Tmax of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.Tmax of Total Radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doset1/2 of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.t1/2 of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.t1/2 of Total Radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseCL/F of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Apparent Volume of Distribution During the Terminal Phase (Vz/F) of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseVz/F of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Absolute Bioavailability of LOXO-305 in PlasmaPre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe absolute bioavailability expressed in ratio was calculated using the formula= AUC0-inf (oral) x Dose (IV) divided by AUC0-inf (IV) x Dose (oral) . The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Total Clearance (CL) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.CL of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Volume of Distribution (Vz) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.Vz of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Volume of Distribution at Steady State (Vss) of [14C]-LOXO-305 in PlasmaPre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseVss of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Renal Clearance (CLR) of [14C]-LOXO-305Pre-IV dose, 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseCLR of \[14C\]-LOXO-305 in urine collection. The urine sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in UrinePre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Cumulative Amount of Total Radioactivity Excreted in UrinePre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in Feces0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Cumulative Amount of Total Radioactivity Excreted in Feces0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in UrinePre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in UrinePre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in Feces0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.
Part 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV doseThe Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.

Countries

United States

Participant flow

Participants by arm

ArmCount
Part 1: [14C]-LOXO-305 Oral Solution
Participants received a single dose of 200 mg LOXO-305 radiolabelled with carbon-14, i.e., \[14C\]-LOXO-305 (approximately 200 microcurie radioactivity) administered as an oral solution.
4
Part 2: LOXO-305 Oral Tablet + [14C]-LOXO-305 IV Solution
Participants received: * a single dose of 200 mg LOXO-305 administered as 2×100 mg oral tablets * followed 2 hours later by a single dose of less than 100 μg of \[14C\]-LOXO-305 (approximately 1 microcurie radioactivity) administered as an IV push over approximately 2 minutes.
5
Total9

Baseline characteristics

CharacteristicPart 1: [14C]-LOXO-305 Oral SolutionTotalPart 2: LOXO-305 Oral Tablet + [14C]-LOXO-305 IV Solution
Age, Continuous39.5 years
STANDARD_DEVIATION 3.42
30.9 years
STANDARD_DEVIATION 9.18
24 years
STANDARD_DEVIATION 5.15
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants8 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
3 Participants7 Participants4 Participants
Region of Enrollment
United States
4 Participants9 Participants5 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
4 Participants9 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 5
other
Total, other adverse events
3 / 44 / 5
serious
Total, serious adverse events
0 / 40 / 5

Outcome results

Primary

Part 1: Pharmacokinetics (PK): Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

AUC0-inf of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: Pharmacokinetics (PK): Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-30575300 hours*nanogram per milliliter (h*ng/mL)Geometric Coefficient of Variation 14.8
Primary

Part 1: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

CL/F of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-3052.69 liter per hour (L/h)Geometric Coefficient of Variation 15.8
Primary

Part 1: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

t1/2 of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-30517.8 hoursStandard Deviation 2.26
Primary

Part 1: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305

t1/2 of total radioactivity in plasma and whole blood.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Plasma25.3 hoursStandard Deviation 4.76
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Whole Blood21.7 hoursStandard Deviation 3.08
Primary

Part 1: PK: Apparent Volume of Distribution (Vz/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

Vz/F of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Apparent Volume of Distribution (Vz/F) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-30568.8 liter (L)Geometric Coefficient of Variation 21
Primary

Part 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

AUC0-t of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-30574500 hours*nanogram per milliliter (h*ng/mL)Geometric Coefficient of Variation 14.9
Primary

Part 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305

AUC0-t of total radioactivity in plasma and whole blood.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Plasma109000 hours*nanogram equivalent per gramGeometric Coefficient of Variation 16.1
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Whole Blood68900 hours*nanogram equivalent per gramGeometric Coefficient of Variation 13
Primary

Part 1: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305

AUC0-inf of total radioactivity in plasma and whole blood.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Plasma111000 hours*nanogram equivalent per gramGeometric Coefficient of Variation 15.8
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Whole Blood71200 hours*nanogram equivalent per gramGeometric Coefficient of Variation 12.6
Primary

Part 1: PK: Cumulative Amount of Total Radioactivity Excreted in Feces

The feces sampling time points from the 0 hour (i.e. time of dose) through 360 hours post-dose were used to assess this outcome.

Time frame: 0 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Cumulative Amount of Total Radioactivity Excreted in Feces75.5 milligram equivalent (mg eq)Standard Deviation 5.29
Primary

Part 1: PK: Cumulative Amount of Total Radioactivity Excreted in Urine

The urine sampling time points from pre-dose through 360 hours post-dose were used to assess this outcome.

Time frame: Pre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Cumulative Amount of Total Radioactivity Excreted in Urine116 milligram equivalent (mg eq)Standard Deviation 4.05
Primary

Part 1: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

Cmax of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-3053530 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 8.8
Primary

Part 1: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305

Cmax of total radioactivity in plasma and whole blood.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Plasma4280 nanogram equivalent per gramGeometric Coefficient of Variation 7.7
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Whole Blood3020 nanogram equivalent per gramGeometric Coefficient of Variation 7.7
Primary

Part 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces

The feces sampling time points from the 0 hour (i.e. time of dose) through 360 hours post-dose were used to assess this outcome.

Time frame: 0 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces37.3 percentage of total radioactivityStandard Deviation 2.31
Primary

Part 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Urine

The urine sampling time points from pre-dose through 360 hours post-dose were used to assess this outcome.

Time frame: Pre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Urine57 percentage of total radioactivityStandard Deviation 2.16
Primary

Part 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305

The metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in feces using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.

Time frame: 0 (time of dose), 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (NUMBER)
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305Loxo-3051 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M10 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M20 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M30 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M40 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M111 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M120 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M150 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M161 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M170 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M180 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M190 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M201 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M211 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Feces Following a Single Oral Dose of [14C]-LOXO-305M221 sample positive
Primary

Part 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

The metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in plasma using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.

Time frame: 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264 h post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (NUMBER)
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305Loxo-3051 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M11 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M21 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M30 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M41 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M110 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M120 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M150 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M160 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M170 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M180 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M190 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M200 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M210 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305M220 sample positive
Primary

Part 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305

The metabolic profile of LOXO-305 following a single oral dose of \[14C\]-LOXO-305 was done to assess the presence of LOXO-305 and various metabolites (M1 to M4, M11, M12, M15 to M22) in urine using high-performance liquid chromatography with radiochemical detection. Metabolites are identified by comparison with known standards (when available) and/or by liquid chromatography/tandem mass spectrometry analysis. The presence of any metabolite in a given matrix is indicated as '1' and absence from that matrix is indicated as '0'.

Time frame: Pre-dose, 0 (time of dose), 6, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (NUMBER)
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305Loxo-3051 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M10 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M21 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M31 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M41 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M110 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M121 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M151 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M161 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M171 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M181 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M191 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M200 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M210 sample positive
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Metabolic Profile of LOXO-305 in Urine Following a Single Oral Dose of [14C]-LOXO-305M220 sample positive
Primary

Part 1: PK: Ratio of AUC0-inf of Plasma LOXO-305 to AUC0-inf of Plasma Total Radioactivity

AUC0-inf of plasma LOXO-305 relative to AUC0-inf of plasma total radioactivity, expressed in ratio.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Ratio of AUC0-inf of Plasma LOXO-305 to AUC0-inf of Plasma Total Radioactivity0.680 ratioGeometric Coefficient of Variation 1.2
Primary

Part 1: PK: Ratio of AUC0-inf of Whole Blood Total Radioactivity to AUC0-inf of Plasma Total Radioactivity

AUC0-inf of whole blood total radioactivity relative to AUC0-inf of plasma total radioactivity, expressed in ratio.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Ratio of AUC0-inf of Whole Blood Total Radioactivity to AUC0-inf of Plasma Total Radioactivity0.642 ratioGeometric Coefficient of Variation 3.4
Primary

Part 1: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-305

Tmax of LOXO-305 in plasma.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEDIAN)
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in Plasma Following a Single Oral Dose of [14C]-LOXO-3051.80 hours
Primary

Part 1: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305

Tmax of total radioactivity in plasma and whole blood.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360 hours post-dose

Population: All part 1 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureGroupValue (MEDIAN)
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Plasma1.80 hours
Part 1: [14C]-LOXO-305 Oral SolutionPart 1: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma and Whole Blood Following a Single Oral Dose of [14C]-LOXO-305Whole Blood1.80 hours
Primary

Part 2: PK: Absolute Bioavailability of LOXO-305 in Plasma

The absolute bioavailability expressed in ratio was calculated using the formula= AUC0-inf (oral) x Dose (IV) divided by AUC0-inf (IV) x Dose (oral) . The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Absolute Bioavailability of LOXO-305 in Plasma0.855 ratioGeometric Coefficient of Variation 7.2
Primary

Part 2: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in Plasma

CL/F of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Apparent Systemic Clearance (CL/F) of LOXO-305 in Plasma1.90 liter per hour (L/h)Geometric Coefficient of Variation 28.1
Primary

Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of [14C]-LOXO-305 in Plasma

t1/2 of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Apparent Terminal Elimination Half-life (t1/2) of [14C]-LOXO-305 in Plasma17.6 hoursStandard Deviation 1.24
Primary

Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in Plasma

t1/2 of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Apparent Terminal Elimination Half-life (t1/2) of LOXO-305 in Plasma18.7 hoursStandard Deviation 1.68
Primary

Part 2: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma

t1/2 of Total Radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Apparent Terminal Elimination Half-life (t1/2) of Total Radioactivity in Plasma37.4 hoursStandard Deviation 9.72
Primary

Part 2: PK: Apparent Volume of Distribution During the Terminal Phase (Vz/F) of LOXO-305 in Plasma

Vz/F of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Apparent Volume of Distribution During the Terminal Phase (Vz/F) of LOXO-305 in Plasma51.0 liter (L)Geometric Coefficient of Variation 23.6
Primary

Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of [14C]-LOXO-305 in Plasma

AUC0-t of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of [14C]-LOXO-305 in Plasma13700 hours*picogram per milliliterGeometric Coefficient of Variation 29.2
Primary

Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in Plasma

AUC0-t of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of LOXO-305 in Plasma104000 hours*nanogram per milliliter (h*ng/mL)Geometric Coefficient of Variation 28.7
Primary

Part 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma

AUC0-t of Total Radioactivity in Plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Hour 0 to the Last Measurable Concentration (AUC0-t) of Total Radioactivity in Plasma18000 hours*picogram equivalent per milliliterGeometric Coefficient of Variation 25.8
Primary

Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of [14C]-LOXO-305 in Plasma

AUC0-inf of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of [14C]-LOXO-305 in Plasma13700 hours*picogram per milliliterGeometric Coefficient of Variation 29
Primary

Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in Plasma

AUC0-inf of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of LOXO-305 in Plasma105000 hours*nanogram per milliliter (h*ng/mL)Geometric Coefficient of Variation 28.1
Primary

Part 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma

AUC0-inf of total radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Total Radioactivity in Plasma18300 hours*picogram equivalent per milliliterGeometric Coefficient of Variation 25.2
Primary

Part 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in Feces

The Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.

Time frame: 0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in Feces3.02 microgram (μg)Geometric Coefficient of Variation 40.5
Primary

Part 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in Urine

The urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Cumulative Amount of [14C]-LOXO-305 Excreted in Urine1.59 microgram (μg)Geometric Coefficient of Variation 28.3
Primary

Part 2: PK: Cumulative Amount of Total Radioactivity Excreted in Feces

The Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.

Time frame: 0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Cumulative Amount of Total Radioactivity Excreted in Feces4.97 microgram equivalent (μg eq)Geometric Coefficient of Variation 38.4
Primary

Part 2: PK: Cumulative Amount of Total Radioactivity Excreted in Urine

The urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Cumulative Amount of Total Radioactivity Excreted in Urine14.1 microgram equivalent (μg eq)Geometric Coefficient of Variation 11.4
Primary

Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of [14C]-LOXO-305 in Plasma

Cmax of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Maximum Observed Plasma Concentration (Cmax) of [14C]-LOXO-305 in Plasma994 picogram per milliliter (pg/mL)Geometric Coefficient of Variation 31.6
Primary

Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in Plasma

Cmax of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Maximum Observed Plasma Concentration (Cmax) of LOXO-305 in Plasma4490 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 19.2
Primary

Part 2: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma

Cmax of Total Radioactivity in Plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Maximum Observed Plasma Concentration (Cmax) of Total Radioactivity in Plasma1110 picogram equivalent per milliliterGeometric Coefficient of Variation 53.1
Primary

Part 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in Feces

The Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.

Time frame: 0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in Feces13.5 percentage of [14C]-LOXO-305Geometric Coefficient of Variation 40.5
Primary

Part 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in Urine

The urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Mean Cumulative Percentage of [14C]-LOXO-305 Excreted in Urine7.12 percentage of [14C]-LOXO-305Geometric Coefficient of Variation 28.9
Primary

Part 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces

The Feces sampling time points from the 0 hour (i.e. time of oral dose) through 192 hours post-IV dose were used to assess this outcome.

Time frame: 0 (time of oral dose), 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Feces22.3 percentage of total radioactivityGeometric Coefficient of Variation 38.8
Primary

Part 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Urine

The urine sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0 (time of oral dose), 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Mean Cumulative Percentage of Total Radioactivity Excreted in Urine63.1 percentage of total radioactivityGeometric Coefficient of Variation 11.2
Primary

Part 2: PK: Renal Clearance (CLR) of [14C]-LOXO-305

CLR of \[14C\]-LOXO-305 in urine collection. The urine sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Renal Clearance (CLR) of [14C]-LOXO-3050.116 liter per hour (L/h)Geometric Coefficient of Variation 36.8
Primary

Part 2: PK: Time to Maximum Observed Concentration (Tmax) of [14C]-LOXO-305 in Plasma

Tmax of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEDIAN)
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Time to Maximum Observed Concentration (Tmax) of [14C]-LOXO-305 in Plasma0.167 hours
Primary

Part 2: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in Plasma

Tmax of LOXO-305 in plasma. The sampling time points from pre-oral dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-oral dose, 0.5, 1, 2 hours post oral dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEDIAN)
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Time to Maximum Observed Concentration (Tmax) of LOXO-305 in Plasma5.00 hours
Primary

Part 2: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma

Tmax of Total Radioactivity in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (MEDIAN)
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Time to Maximum Observed Concentration (Tmax) of Total Radioactivity in Plasma0.167 hours
Primary

Part 2: PK: Total Clearance (CL) of [14C]-LOXO-305 in Plasma

CL of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Total Clearance (CL) of [14C]-LOXO-305 in Plasma1.63 liter per hour (L/h)Geometric Coefficient of Variation 29.7
Primary

Part 2: PK: Volume of Distribution at Steady State (Vss) of [14C]-LOXO-305 in Plasma

Vss of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Volume of Distribution at Steady State (Vss) of [14C]-LOXO-305 in Plasma36.3 liter (L)Geometric Coefficient of Variation 24.2
Primary

Part 2: PK: Volume of Distribution (Vz) of [14C]-LOXO-305 in Plasma

Vz of \[14C\]-LOXO-305 in plasma. The sampling time points from pre-IV dose through 192 hours post-IV dose were used to assess this outcome.

Time frame: Pre-IV dose, 0.03, 0.17, 0.33, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 96, 120, 144, 168, 192 hours post IV dose.

Population: All part 2 participants who received \[14C\]-LOXO-305 and had at least 1 quantifiable PK concentration, and for whom at least 1 PK parameter was computed. Participants were excluded from the analysis if they had an AE of vomiting that occurred at or before 2 times the median time to maximum observed plasma concentration (Tmax).

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: [14C]-LOXO-305 Oral SolutionPart 2: PK: Volume of Distribution (Vz) of [14C]-LOXO-305 in Plasma41.2 liter (L)Geometric Coefficient of Variation 29

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