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Cancer drug interaction study tests antifungal and antibiotic effects

NCT ID NCT05338489

Knowledge-focused Sponsor: Eli Lilly and Company Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study looked at how two common drugs—itraconazole (an antifungal) and rifampin (an antibiotic)—change the way the body processes selpercatinib, a cancer medication. Twenty-four healthy adults took selpercatinib alone and then with each of the other drugs. Researchers measured drug levels in the blood to see if doses need adjustment. The goal is to ensure safe and effective use when these drugs are combined in cancer patients.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Selpercatinib (also called LOXO-292), itraconazole, and rifampin
What this could lead to
If successful, this study will help doctors understand how to adjust selpercatinib doses when patients take common antifungal or antibiotic drugs, making treatment safer.
What could go wrong
This is an early-stage study in healthy volunteers, not patients. The results may not fully predict effects in people with cancer or those taking other medications.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

24 people

The number who actually took part.

Started

May 2018

Finished

Aug 2018

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy

Contacts and locations

Locations

  • Celerion

    Tempe, Arizona, 85283, United States

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