A Study of the Effects of Pirtobrutinib (LOXO-305) on Repaglinide (CYP2C8 Substrate) in Healthy Participants

March 7, 2025 updated by: Eli Lilly and Company

A Phase I, Open-label, Fixed-sequence, Drug Interaction Study to Investigate the Effect of Multiple Oral Doses of Pirtobrutinib (LOXO-305) on the Pharmacokinetics of Repaglinide (CYP2C8 Substrate) in Healthy Subjects

The main purpose of this study is to evaluate the effect of pirtobrutinib (LOXO-305) on single oral dose of repaglinide (CYP2C8 substrate) when administered as multiple doses by conducting the blood tests to measure how much pirtobrutinib (LOXO-305) is in the bloodstream and how the body handles and eliminates pirtobrutinib (LOXO-305) in adult healthy participants. The study will also evaluate the safety and tolerability of pirtobrutinib (LOXO-305). The study is conducted in two periods. Participants will stay in this study for up to 54 days.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Florida
      • Daytona Beach, Florida, United States, 32117
        • Covance Clinical Research Unit

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Must have Body mass index (BMI) within the range of 18.0 to 32.0 kilograms per square meter (kg/m²), inclusive
  • Male and female 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
  • Female participants of non-childbearing potential and male participants who follow standard contraceptive methods
  • Must have comply with all study procedures, including the 16-night stay at the Clinical Research Unit (CRU) and follow-up phone call

Exclusion Criteria:

  • History or presence of any diseases or conditions of clinical significance by the Investigator (or designee) and/or Sponsor
  • 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)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Period 1: 0.5 mg Repaglinide
Participants received a single oral dose of 0.5 milligrams (mg) repaglinide tablet, in the morning on Day 1.
Drug: Repaglinide
Administered orally.
Experimental: Period 2: 200 mg Pirtobrutinib QD
Participants received oral doses of 200 mg pirtobrutinib tablets, once daily (QD) in the morning from Day 2 to Day 11.
Drug: Pirtobrutinib
Administered orally.
Other Names:
  • LOXO-305
  • LY3527727
Experimental: Period 2: 200 mg Pirtobrutinib QD + 0.5 mg Repaglinide
Participants received oral doses of 200 mg pirtobrutinib QD and 0.5 mg repaglinide tablets, in the morning on Day 12.
Drug: Pirtobrutinib
Administered orally.
Other Names:
  • LOXO-305
  • LY3527727
Drug: Repaglinide
Administered orally.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Pharmacokinetics (PK): Area Under the Concentration-time Curve, From Time 0 to the Last Measurable Concentration (AUC0-t) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: AUC(0-t) of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-inf) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: AUC(0-inf) of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Percentage of AUC0-inf Extrapolated (AUC%Extrap) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: AUC-inf (%extrap) of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Maximum Observed Concentration (Cmax) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Cmax of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Tmax of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Apparent Terminal Elimination Rate Constant (Lambda Z) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Lambda Z of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Apparent Systemic Clearance (CL/F) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: CL/F of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Apparent Plasma Terminal Elimination Half-life (t½) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: t½ of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Apparent Volume of Distribution (Vz/F) of Repaglinide
Time Frame: Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Vz/F of repaglinide was reported.
Period 1, Day 1 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose); Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16 and 24 hours post-dose)
PK: Area Under the Concentration-time Curve, From Time 0 to the Last Measurable Concentration (AUC0-t) of Pirtobrutinib
Time Frame: Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: AUC0-t of pirtobrutinib was reported.
Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Area Under the Concentration-time Curve During a Dosing Interval (AUCtau) of Pirtobrutinib
Time Frame: Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: AUCtau of pirtobrutinib was reported.
Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Maximum Observed Concentration (Cmax) of Pirtobrutinib
Time Frame: Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Cmax of pirtobrutinib was reported.
Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Concentration Observed at the End of the Dosing Interval (Ctrough) of Pirtobrutinib
Time Frame: Period 2: 24-hour post-dose on Day 12
PK: Ctrough of pirtobrutinib was reported.
Period 2: 24-hour post-dose on Day 12
PK: Time to Reach Maximum Observed Plasma Concentration (Tmax) of Pirtobrutinib
Time Frame: Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Tmax of pirtobrutinib was reported.
Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: Apparent Systemic Clearance (CL/F) at Steady State of Pirtobrutinib
Time Frame: Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)
PK: CL/F at steady state of pirtobrutinib was reported.
Period 2, Day 12 (Pre-dose, 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 42, 78 and 100 hours post-dose)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eli Lilly and Company

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Loxo Oncology, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 10, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 30, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 30, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 30, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 8, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 11, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 7, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • LOXO-BTK-20016
  • J2N-OX-JZNL (Other Identifier: Eli Lilly and Company)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings