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Joint ProsthesisPhase 2NCT03123289

Novel Gallium 68 Citrate in Orthopedic Infections

A Phase 2 study testing 68-Gallium citrate PET/CT scan and 18F FDG PET/CT scan in people with Joint Prosthesis, run by Rutgers, The State University of New Jersey at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

In the proposed study, our aim is to evaluate the uptake of 68Gallium-citrate in patients with failed joint prosthesis and compare it with that of conventional 18fluorine-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) scan. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Joint Prosthesis
What is being tested?
68-Gallium citrate PET/CT scan and 18F FDG PET/CT scan
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteUnited States
Study dates
6 Mar 2017to 14 Oct 2020
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • At least 6 months after hip replacement with complaint of joint pain.
  • Radiographic studies compatible with prosthesis loosening (i.e. periprosthetic infection or aseptic loosening).
  • Pending surgical evaluation and tissue sampling within the next few weeks to differentiate between infection and aseptic loosening.

Who cannot join

  • Inability to consent
  • Pregnancy or known or suspected hypersensitivity to metals or gallium
  • Joint replacement for any reason other than primary or secondary osteoarthritis
  • Prior surgical therapy for prosthesis failure after initial hospital discharge
  • Active inflammatory/infectious process at any location other than prosthetic joint (Sarcoidosis, Rheumatoid arthritis, HIV infection, SLE)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Rutgers New Jersey Medical School

    Newark, New Jersey, 07103

Other trials in United States

About this study

In the proposed study, our aim is to evaluate the uptake of 68Gallium-citrate in patients with failed joint prosthesis and compare it with that of conventional 18fluorine-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) scan. We will perform PET/CT scan with 68Gallium citrate and 18F-FDG in subjects with failed hip or knee prosthesis. Both 68Gallium-citrate and 18F-FDG scans, done within 24-48 hours from each other, will be performed within 4 weeks before surgical evaluation/revision of the hardware.

Being tested
68-Gallium citrate PET/CT scan, 18F FDG PET/CT scan
Keywords
PET/CT, 68Gallium Citrate, Orthopedic Hardware infection

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 68-Gallium citrate PET/CT scanDrug

    After establishment of an intravenous access, approximately 5 mCi of 68Ga-citrate (Zevacor Molecular, Somerset, NJ, USA) will be administered intravenously. Whole body PET/CT scan will be performed after 60 minutes of uptake phase.

  • 18F FDG PET/CT scanDrug

    Subjects will undergo FDG PET/CT scan using the same imaging parameters either on the same day or within the next 24-48 hours. The subjects will be requested to fast for a minimum of 4 h prior to PET acquisition. After confirmation of a blood glucose level ≤200 mg/dl, technologists will establish the intravenous access and the subject will receive approximately 10 mCi of 18F-FDG (Zevacor Molecular, Somerset, NJ, USA) intravenously. The subject will be placed in uptake room for 60 minutes to allow for optimal localization of the compound. The subjects will be requested to void prior to administration of 18FDG and again prior to image acquisition.

Study groups in NCT03123289
Study groupRoleWhat they receive
68Gallium-citrateExperimentalThis arm, undergoing the "68-Gallium citrate PET/CT scan intervention", includes the PET/CT scans performed with 68Gallium-citrate radiotracer. Note that same patients scanned with different radiotracers serve in both arms.
Receives: Drug: 68-Gallium citrate PET/CT scan
18F-FDGExperimentalThis arm, undergoing the "18F FDG PET/CT scan intervention", includes the PET/CT scans performed with 18F-FDG tracer. Note that same patients scanned with different radiotracers serve in both arms.
Receives: Drug: 18F FDG PET/CT scan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 68Gallium-citrate and 18F-FDG uptake (SUV) surrounding the femoral and acetabular components of the prosthesis

    The radiotracer uptake in SUV units is measured in different Gruen zones around the prosthesis and normalized by that of the liver. The values of the two scans will be compared against each other for all patients.

    Measured: 1 year

Secondary outcomes (1)
  1. Sensitivity, specificity, and accuracy of 68Gallium-citrate and 18F-FDG scans, by using surgical pathology results as the gold standard.

    Using the surgical histology and tissue culture as the gold standard, sensitivity and specificity of both techniques will be calculated. The aim is determine which modality has more accuracy to differentiate septic prosthesis failure from aseptic entities.

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Apr 2017
  2. Study start6 Mar 2017
  3. Primary completion14 Oct 2020
  4. Study completion14 Oct 2020

Why it stopped: PI left the institute and the funding expired.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Crossover
Model description
Same patients are scanned with two radiotracers within 24-48 hours. Results of the two scans are compared against each other.
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03123289
Sponsor's protocol ID
20160000134
Status last verified
Apr 2021
First submitted
4 Apr 2017
Last updated
15 Apr 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing 68-Gallium citrate PET/CT scan and 18F FDG PET/CT scan in people with Joint Prosthesis, run by Rutgers, The State University of New Jersey at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 15 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: PI left the institute and the funding expired.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

68Gallium-citrate and 18F-FDG uptake (SUV) surrounding the femoral and acetabular components of the prosthesis (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Apr 2021.

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