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A dipstick test for joint infection? study puts cheap diagnostics to the test

NCT ID NCT07718386

Diagnosis Sponsor: Ain Shams University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This study investigates whether three common lab tests — blood levels of ESR and CRP, plus a leukocyte esterase dipstick test on joint fluid — can reliably diagnose chronic infection in people who have had a total joint replacement. The researchers will compare the test results against standard diagnostic criteria in 80 patients who may have a periprosthetic joint infection. If accurate, these inexpensive tests could simplify diagnosis and speed up treatment.

What this could mean

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

What this could lead to
If these tests prove accurate, diagnosing chronic joint infections could become faster, cheaper, and more accessible.
What could go wrong
This is a small, single-center study. The tests may not be accurate enough to replace current methods, and results may not apply to all patients.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

80 people

The number who actually took part.

Started

Dec 2022

Finished

May 2024

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: Infected and query infected TJR patients Time of presentation \>=4 weeks post op. Exclusion Criteria: presentation before 4 weeks post op Hematogenous infections Patients with infection elsewhere in the body Patients with inflammatory arthritis as gouty arthritis, SLE and RA.

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Conditions

The condition(s) this trial relates to.

periprosthetic joint infection

As listed by the trial registrant

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

Periprosthetic joint infection (PJI)

Contacts and locations

Locations

  • Ain Shams University hospitals

    Cairo, Abbasya, 11566, Egypt

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Other studies related to the condition(s) this trial covers.