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New scan could light up hidden infections

NCT ID NCT04263792

Diagnosis Sponsor: University of Pennsylvania Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Sep 09, 2026 · Updated 4 times

Summary

This early study is testing a radioactive tracer called [18F]F-TMP that is injected into the body and then tracked with a PET/CT scan. The goal is to see if the tracer collects at sites of bacterial infection, making them visible on the scan. Twenty adults with known or suspected bacterial infections will take part. If successful, this approach could give doctors a new tool to locate infections without invasive procedures.

What this could mean

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

Active substance
radioactive tracer called [18F]F-TMP (a modified antibiotic that shows up on PET scans)
What this could lead to
If it works, this could lead to a new way to pinpoint bacterial infections in the body using a simple scan, helping doctors treat infections more accurately.
What could go wrong
This is a very early (Phase 1) study with only 20 people, so it is mainly checking safety and how the tracer moves through the body. It may not prove useful for diagnosing infections in practice.

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

About 20 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2020

Expected to finish

Sep 2027

An estimate. End dates often move.

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: * At least 18 years of age * Known or suspected bacterial infection, per clinical documentation of suspected infection (e.g. lab results, pathology results, physician progress notes, clinical symptoms of infection) * Able to understand the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific procedures Exclusion Criteria: * Antibiotic therapy with trimethoprim within 48h of the baseline PET/CT scan * Inability to tolerate imaging procedures, in the opinion of an investigator or treating physician * Unstable or other severe medical or psychological comorbidities that would compromise the subject's safety or successful participation in the study, in the opinion of an investigator or treating physician * Pregnant or breast feeding patients; a urine pregnancy test will be performed in women of child-bearing potential prior to \[18F\]F-TMP injection, to confirm non-pregnant status

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Conditions

The condition(s) this trial relates to.

bacterial infectious disease

As listed by the trial registrant

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

Bacterial infections

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

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