A Study of Effects of Itraconazole and Rifampin on Selpercatinib (LY3527723) in Healthy Participants

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-05-11

Study Completion Date

2018-08-22

Brief Summary

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The main purpose of this study is to assess the effect of itraconazole and rifampin on how fast selpercatinib gets into the blood stream and how long it takes the body to remove it when administered in healthy participants. Information about safety and tolerability will be collected. The study is conducted in two parts and it will last up to 54 days (part 1) and 59 days (part 2), respectively, inclusive of screening period.

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Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Part 1 - 160 mg Selpercatinib + 200 mg Itraconazole

Participants received a single oral dose of 160 milligrams (mg) selpercatinib on Day 1 of Period 1.

In Period 2, participants received an oral dose of 200 mg itraconazole administered once daily (QD) for 11 consecutive days (Days -4 to 7) with a single oral dose of 160 mg selpercatinib co-administered on Day 1 of Period 2.

There was a washout period of at least 7 days between the dose of selpercatinib in Period 1 and the first dose of itraconazole in Period 2.

Group Type EXPERIMENTAL

Selpercatinib

Intervention Type DRUG

Administered orally.

Itraconazole

Intervention Type DRUG

Administered orally.

Part 2 - 160 mg Selpercatinib + 600 mg Rifampin

Participants received a single oral dose of 160 mg selpercatinib on Day 1 of Period 1.

In Period 2, participants received an oral dose of 600 mg rifampin administered QD for 16 consecutive days (Days 1 to 16) with a single oral dose of 160 mg selpercatinib co-administered on Day 1 and Day 10 of Period 2.

There was a washout period of at least 7 days between the dose of selpercatinib in Period 1 and the first dose of rifampin and selpercatinib in Period 2.

Group Type EXPERIMENTAL

Selpercatinib

Intervention Type DRUG

Administered orally.

Rifampin

Intervention Type DRUG

Administered orally.

Interventions

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Selpercatinib

Administered orally.

Intervention Type DRUG

Itraconazole

Administered orally.

Intervention Type DRUG

Rifampin

Administered orally.

Intervention Type DRUG

Other Intervention Names

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LY3527723 LOXO-292

Eligibility Criteria

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Inclusion Criteria

* Female participants of non-childbearing potential who are agreeable to take birth control measures until study completion
* Body mass index (BMI) ≥ 18.0 and ≤ 32.0 kilograms per meter squared (kg/m²) and had a minimum weight of at least 50 kg at screening
* Have normal blood pressure, pulse rate, electrocardiogram (ECG), and blood and urine laboratory test results that are acceptable for the study

Exclusion Criteria

* Are currently participating in or completed a clinical trial within the last 30 days or any other type of medical research judged to be incompatible with this study
* Have previously participated or withdrawn from this study
* Have or used to have health problems or laboratory test results or ECG readings that, in the opinion of the doctor, could make it unsafe to participate, or could interfere with understanding the results of the study
* Had blood loss of more than 500 milliliters (mL) within the previous 30 days of study screening
* Require treatment with inducers or inhibitors of cytochrome P450 (CYP) CYP3A within 14 days before the first dose of study drug through the end of Period 2

Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes