Small study tracks antibiotic behavior in cystic fibrosis patients

NCT ID NCT04460586

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 ยท Last updated Jun 27, 2026

Summary

This study looked at how the antibiotic omadacycline moves through the bodies of 9 adults with cystic fibrosis. Participants received the drug by mouth and through an IV to measure levels in the blood. The goal was to understand dosing, not to treat the disease.

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 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

9 people

The number who actually took part.

Started

Jul 2021

Finished

Dec 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Diagnosis of CF based on positive sweat chloride or known CF mutation * Age \>=18 years Exclusion Criteria: * Presence of an ongoing acute pulmonary exacerbation defined based on clinical signs \& symptoms and an acute decline in relative FEV1 of 10% or greater. * Pregnancy or breastfeeding * Serious past allergy to a tetracycline antibiotic * No alcohol, nicotine, or caffeine-containing products during the study period * Hemoglobin \< 8 g/dL

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • University of Southern California

    Los Angeles, California, 90089, United States

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