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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT02855190
Other study ID # 103-7226A
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date January 2016
Est. completion date December 2018

Study information

Verified date June 2018
Source Chang Gung Memorial Hospital
Contact Yen Tzu-Chen, MD,PhD
Phone 03-328-1200
Email yen1110@adm.cgmh.org.tw
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is an open-labelled two-arm pilot comparative prospective study. All the subjects will undergo image assessment in the two stages of exchange arthroplasty surgery. At the first stage, each enrolled subject will receive both FDG and Ga68 citrate PET/CT scans before the first operation for periprosthetic Joint Infection (PJI). Thus, the test results of FDG and Ga68 for each individual can be obtained. After the first operation, the surgery/biopsy proof can be obtained as the gold standard. The subjects those with PJI negative will complete the process at the first stage.

And the second stage of this study will be based on the subjects with positive PJI from the first operation. They will receive both FDG and Ga68 citrate PET/MR scans after antibiotic bone cement was implanted. The sensitivity/accuracy of the two tracers for PET/MR can be calculated and compared. This stage is aimed to answer whether PET/MR scan is a feasible imaging tool to provide diagnostic information of infection control status after the resection arthroplasty of hip/knee PJIs, especially with the implantation of antibiotic loaded bone cement.

In the second stage, the investigators shift the imaging modality to PET/MR based on the following reasons: (1) MRI itself has no radiation burden; (2) MRI provides more accurate tissue contrast information and therefore better anatomic delineation; and (3) currently there was no study indicating the existence of ABLC may hamper the interpretation of images.

The study duration is expected to be completed in a period of 3 year. It plans to enrol a total of 40 evaluable subjects with suspicious. And we expect the PJI prevalence will be around 75%, i.e. the anticipated number of subjects of true PJI is around 30. The sample size and the prevanence is given based on the clinical availability and consideration.


Description:

The recruited subject subject with periprosthetic joint infection will undergo total four PET scans at two different stages. At first stage, subsequent FDG PET/CT and Ga68 citrate PET/CT scans on different two days will be arranged before infective prosthesis is removed. Eight to twelve weeks after the 1st stage operation, patient will receive two subsequent PET/MR scans using Ga-68 Citrate and FDG on different two days, respectively. The PET images will be visually examined by a nuclear medicine physician and will be reported if any abnormal uptake higher than background by their location and standard uptake value (SUV). The CT/MR images will be reported by a radiologist using standard reading procedures, respectively. The lesions on the PET scan will be correlated to the computed tomography and magnetic resonance images, and the final sensitivity, specificity, and accuracy will be calculated according to the histopathology results or composite clinical and laboratory data.

On the scan day using Ga68-Citrate, baseline electrocardiogram, complete blood count (CBC), and biochemistry profiles including serum alanine transaminase (ALT) and creatinine (Cre) level will be done prior to injection of the radio-pharmaceutical (Ga68-Citrate). Vital signs will be measured before the scan beginning. After completing exam, the electrocardiogram and vital signs will be measure again, and the subject will be released if there is no discomfort. The subject will return to the clinic within 1 week after Ga68-citrate scan. CBC, biochemistry profiles will be checked again for safety monitoring.


Recruitment information / eligibility

Status Recruiting
Enrollment 30
Est. completion date December 2018
Est. primary completion date July 2018
Accepts healthy volunteers No
Gender All
Age group 20 Years to 99 Years
Eligibility Inclusion Criteria:

1. Patients with clinically-proved or -suspicious periprosthetic joint infection and treated with two-stage exchange arthroplasty

2. Age equals or more than 20 years old

3. Willing to sign the informed consent

Exclusion Criteria:

1. Unable to tolerate PET/MR or PET/CT scan, such as those with magnetic implants (e.g. those received intracranial aneurysm surgery, cardiac pacemaker, artificial valves replacement, artificial ears), renal impairment (glomerular filtration rate lower than 30 ml/min/1.73 m2), claustrophobia, unable to lie still, allergy to medium contrast.

2. Unable to give informed consent

3. Patient who is pregnant or lactating

4. Unwilling to use contraceptives during nuclide medicine examinations.

5. Allergy history to FDG or Ga68-citrate, significant abnormal lab data, and high risk to conduct examination after evaluations of PI.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
68Ga-citrate and 18F-FDG PET scans
68Ga-citrate and 18F-FDG PET/CT or PET/MR scans before operations

Locations

Country Name City State
Taiwan Chang Gung Memorial Hospital at Linkou Taoyuan

Sponsors (1)

Lead Sponsor Collaborator
Chang Gung Memorial Hospital

Country where clinical trial is conducted

Taiwan, 

References & Publications (9)

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Bauman G, Belhocine T, Kovacs M, Ward A, Beheshti M, Rachinsky I. 18F-fluorocholine for prostate cancer imaging: a systematic review of the literature. Prostate Cancer Prostatic Dis. 2012 Mar;15(1):45-55. doi: 10.1038/pcan.2011.35. Epub 2011 Aug 16. Revie — View Citation

Beer AJ, Eiber M, Souvatzoglou M, Schwaiger M, Krause BJ. Radionuclide and hybrid imaging of recurrent prostate cancer. Lancet Oncol. 2011 Feb;12(2):181-91. doi: 10.1016/S1470-2045(10)70103-0. Epub 2010 Jul 6. Review. — View Citation

Mohler JL, Armstrong AJ, Bahnson RR, Boston B, Busby JE, D'Amico AV, Eastham JA, Enke CA, Farrington T, Higano CS, Horwitz EM, Kantoff PW, Kawachi MH, Kuettel M, Lee RJ, MacVicar GR, Malcolm AW, Miller D, Plimack ER, Pow-Sang JM, Roach M 3rd, Rohren E, Ro — View Citation

Picchio M, Castellucci P. Clinical Indications of C-Choline PET/CT in Prostate Cancer Patients with Biochemical Relapse. Theranostics. 2012;2(3):313-7. doi: 10.7150/thno.4007. Epub 2012 Mar 12. — View Citation

Schwarzenböck S, Souvatzoglou M, Krause BJ. Choline PET and PET/CT in Primary Diagnosis and Staging of Prostate Cancer. Theranostics. 2012;2(3):318-30. doi: 10.7150/thno.4008. Epub 2012 Mar 15. — View Citation

Souvatzoglou M, Eiber M, Martinez-Moeller A, Fürst S, Holzapfel K, Maurer T, Ziegler S, Nekolla S, Schwaiger M, Beer AJ. PET/MR in prostate cancer: technical aspects and potential diagnostic value. Eur J Nucl Med Mol Imaging. 2013 Jul;40 Suppl 1:S79-88. d — View Citation

Umbehr MH, Müntener M, Hany T, Sulser T, Bachmann LM. The role of 11C-choline and 18F-fluorocholine positron emission tomography (PET) and PET/CT in prostate cancer: a systematic review and meta-analysis. Eur Urol. 2013 Jul;64(1):106-17. doi: 10.1016/j.eu — View Citation

Wetter A, Lipponer C, Nensa F, Beiderwellen K, Olbricht T, Rübben H, Bockisch A, Schlosser T, Heusner TA, Lauenstein TC. Simultaneous 18F choline positron emission tomography/magnetic resonance imaging of the prostate: initial results. Invest Radiol. 2013 — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary sensitivity and specificity of the two PET/CT tracers (18F-FDG and 68Gallium citrate) in detecting periprosthetic joint infection 3 years