- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04938193
68Ga-citrate PET/CT for the Diagnosis of Chronic Prosthetic Hip or Knee Infection (Gal-I-TEP)
68Gallium-citrate Positron Emission Tomography/Computed Tomography (68Ga-citrate PET/CT) for the Diagnosis of Chronic Prosthetic Hip or Knee Infection
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Prosthetic joint infection (PJI) is a serious and rare complication of orthopedic surgery. Diagnosis is based on precise criteria (MSIS criteria Musculoskeletal Infection Society). However, diagnosis can be difficult, in particular when the infection is present for more than one month. One of the usual exams is bone scintigraphy and 99mTc-HMPAO-labelled leukocyte scintigraphy. This imaging allows an accurate assessment but it has some limitations since it requires ex vivo isolation and marking of patient's leukocytes and repeated acquisition for 24 hours. 68Gallium-citrate positron emission tomography/computed tomography (68Ga-citrate PET/CT) has been recently developed. 68Ga-citrate PET/CT is innovative compared to [18F]fluorodeoxyglucose PET/CT (18F-FDG PET/CT) and has many advantages: high resolution, realization in only two hours, short radioactive period and no handling of patient's leukocytes. Furthermore, preliminary data indicate that 68Ga-citrate is picked up by immune cells, which makes this exam inflammation-selective. To date, 68Ga-citrate PET/CT has not been specifically assessed in PJI, it is the objective of the present study:
Prospective study using 68Ga- citrate PET/CT and a 99mTc-HMPAO-labelled leukocyte SPECT/CT. Patients referred for a suspected PJI and with a positive bone scintigraphy will be prospectively enrolled. After information and signature of informed consent, patients will benefit from a 68Ga citrate PET/CT, in addition to leukocyte scintigraphy in a two-week period. Both images will be anonymized and interpreted by two independent nuclear physicians.
Final PJI diagnosis is based on reference criteria (MSIS) to ensure diagnosis during the standardized medical follow-up. Patients will be followed until 12 months after the leukocyte scintigraphy.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Frédéric-Antoine DAUCHY, MD
- Phone Number: +33 05 56 79 55 36
- Email: frederic.dauchy@chu-bordeaux.fr
Study Contact Backup
- Name: Pauline PERREAU
- Email: pauline.perreau@chu-bordeaux.fr
Study Locations
-
-
-
Bordeaux, France
- Recruiting
- CHU de Bordeaux - service de maladies infectieuses
-
Contact:
- Pauline PERREAU
- Email: pauline.perreau@chu-bordeaux.fr
-
Contact:
- Frédéric-Antoine DAUCHY, MD
- Email: frederic.dauchy@chu-bordeaux.fr
-
Principal Investigator:
- Frédéric-Antoine DAUCHY, MD
-
Sub-Investigator:
- Julie LEITAO, MD
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Sub-Investigator:
- Henri DE CLERMONT-GALLERANDE, MD
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Sub-Investigator:
- Nicolas BALAMOUTOFF, MD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patient aged over 18 years old
- Patient referred for the first time to the South-Western France referral center for complex bone and joint infections (Crioac GSO, infectious diseases and orthopedic surgery units) for suspicion of prosthetic hip or knee infection.
- Suspicion of prosthetic joint infection evolving for more than one month.
- Patient for who routine diagnosis includes both bone scintigraphy and leukocytes scintigraphy.
- Patient with positive bone scintigraphy.
- Being affiliated to a health insurance system
- Having signed an informed consent form (later than the day of inclusion and before any examination required by the research)
Exclusion Criteria:
- Patient with active cancer.
- Patient with negative bone scintigraphy.
- Patient who cannot stop antibiotics 14 days before exams.
- Pregnant or breastfeeding women.
- Women of childbearing age but not using effective means of contraception.
- Patient concerned by articles L 1121-5 to L 1121-8 (persons deprived of their liberty by a judicial or administrative decision, minors, persons of legal age who are the object of a legal protection measure or unable to express their consent).
- Subject in relative exclusion period from another study protocol.
- Known contraindications to PET exam with radiopharmaceutical injection (hypersensitivity to radiopharmaceutical and/or to excipients).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 68Ga-citrate PET/CT
|
PET/CT Imaging with 68Ga-citrate PET/CT injection
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic accuracy of 68Ga citrate PET / CT scan CT for chronic prosthetic hip or knee infection
Time Frame: Up to 12 months after baseline (Day 0)
|
Sensibility, specificity, positive and negative predictive value.
Index test : 68Ga citrate PET / CT scan CT at inclusion.
Reference test : Musculoskeletal Infection Society (MSIS) criteria assessed up to 12 months after inclusion.
After 12 months, participants will be considered free of chronic prosthetic hip or knee infection.
|
Up to 12 months after baseline (Day 0)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic accuracy of quantitative 68Ga citrate PET / CT scan for chronic prosthetic hip or knee infection
Time Frame: Up to 12 months after baseline (Day 0)
|
Area under ROC curve (AUROC) for SUVmax ROI and SUVmax ROI/SVmax liver region ratio measured at inclusion. Reference test : Musculoskeletal Infection Society (MSIS) criteria assessed up to 12 months after inclusion. |
Up to 12 months after baseline (Day 0)
|
Inter-observer reproducibility of 68Ga-citrate PET/CT interpretation
Time Frame: Up to 12 months after baseline (Day 0)
|
Intraclass correlation coefficient and/or Cohen's Kappa.
|
Up to 12 months after baseline (Day 0)
|
Diagnostic accuracy of leukocyte scintigraphy for chronic prosthetic hip or knee infection
Time Frame: Up to 12 months after baseline (Day 0)
|
Sensibility, specificity, positive and negative predictive values.
Index test : leukocytes scintigraphy at inclusion.
Reference test : Musculoskeletal Infection Society (MSIS) criteria assessed up to 12 months after inclusion.
|
Up to 12 months after baseline (Day 0)
|
Diagnosis accuracy of 68Ga-citrate PET/CT and leukocytes scintigraphy for chronic prosthetic hip or knee infection in the following sub-groups: prosthetic knee or hip infection.
Time Frame: Up to 12 months after baseline (Day 0)
|
Sensibility, specificity, positive and negative predictive values, in each subgroup. Index test : 68Ga citrate PET / CT scan CT at inclusion. Reference test : Musculoskeletal Infection Society (MSIS) criteria assessed up to 12 months after inclusion. After 12 months, participants will be considered free of chronic prosthetic hip or knee infection. |
Up to 12 months after baseline (Day 0)
|
Comparison of diagnostic accuracy of 68Ga-PET/CT and leukocytes scintigraphy for chronic prosthetic hip or knee infection
Time Frame: Up to 12 months after baseline (Day 0)
|
Sensibility, specificity, positive and negative predictive values. Reference test : Musculoskeletal Infection Society (MSIS) criteria assessed up to 12 months after inclusion. Index test : 68Ga citrate PET / CT scan CT at inclusion and leukocytes scintigraphy at inclusion. |
Up to 12 months after baseline (Day 0)
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Frédéric-Antoine DAUCHY, MD, CHU Bordeaux
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CHUBX 2019/24
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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