Evaluation of Gd Retention in Human Bone and Skin After MultiHance or ProHance Administration Compared With Control

Study Overview
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Brief Summary
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Subjects must be scheduled to undergo an orthopedic surgical procedure. Subjects in the non-control group must have previously received an MRI with MultiHance or ProHance with at least 1 month between the last administration and the scheduled surgery. Subjects who have never received MultiHance or ProHance or any other gadolinium agent will also be enrolled. Subjects must have a test of their kidney function (SCr) at the time of the last MRI examination or at the time of enrollment if they never received gadolinium. A sample of bone and skin will be collected from the scheduled surgery and tested for the amount of gadolinium. An additional sample of skin will be collected for testing the presence of nephrogenic systemic fibrosis (NSF).

Detailed Description
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Each subject enrolled will already be scheduled to undergo a hip, shoulder or knee replacement, limb amputations or other orthopedic surgical procedures and each subject enrolled in the non-control group will have retrospectively undergone one or more administrations of MultiHance or PROHANCE with the last dose administered at least 1 month before their scheduled surgery. In order to classify the subjects' renal status, the serum creatinine (SCr) value and/or estimated glomerular filtration rate (eGFR) at the time of last MRI with MultiHance or ProHance must be available and collected. The control subjects' documented SCr values will be collected prior to enrollment in the study. The bone and skin tissue sample(s) collected (during the subjects surgery) will be blinded to gadolinium based contrast agent (GBCA) exposure and sent to a central laboratory where they will be tested for gadolinium (Gd) and other analytes including calcium, phosphorous, sodium, iron, zinc, and potassium. The Gd deposition of the resected bone and skin tissue will be analyzed by Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The bone and skin tissue will also be analyzed for other analytes using ICP-MS. These sample(s) will be stored at the central laboratory. A separate sample of the skin tissue collected (during the subjects' surgery) will also be sent to a central dermatopathologist who will be blinded to GBCA exposure and test for any possible NSF related abnormalities. These skin tissue sample(s) will be stored with the central dermatopathology laboratory.

Official Title
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A Prospective Multicenter Cohort Study Evaluating the Long Term Retention of Gadolinium in Human Bone and Skin After the Retrospective Administration of MultiHance or ProHance in Comparison With a Control Group Receiving No Exposure to Gadolinium

Conditions
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Gadolinium Retention

Intervention / Treatment
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* Procedure: Surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: SUBJECTS WHO RECEIVED MULTIHANCE or PROHANCE: Is scheduled to receive hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures Has undergone at least one MULTIHANCE or PROHANCE administration at least 1 month before his/her scheduled surgery Has a documented SCr for calculation of eGFR and/or documented eGFR at time of last MRI with MULTIHANCE or PROHANCE Provides written Informed Consent and is willing to comply with protocol requirements Is willing to undergo deep skin tissue sampling during scheduled hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures Is ≥18 years of age SUBJECTS WITH NO EXPOSURE TO GBCA: Is scheduled to receive hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures Has no history of GBCA administration Provides written Informed Consent and is willing to comply with protocol requirements Is willing to undergo deep skin tissue sampling during scheduled hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures Has prior SCr and/or eGFR at time of enrollment Is ≥18 years of age Exclusion Criteria: SUBJECTS WHO RECEIVED MULTI HANCE or PROHANCE: Has undergone any GBCA including MULTIHANCE or PROHANCE administration less than 1 month before his/her scheduled surgery Has ever been suspected of, or diagnosed with, NSF Has been suspected or diagnosed, prior to inclusion in this study, with bone cancer or any other osteoblastic or osteoclastic disease, such as septic, infectious or ischemic disease affecting physiological bone structure that has caused the bone to be diseased, prior to inclusion in this study Is unable or unwilling to be examined by dermatologists or to undergo laboratory/other diagnostic evaluations should development of NSF be suspected. Has received any GBCA other than the one under evaluation at any time prior to inclusion in this study (e.g., a MULTIHANCE subject should not receive any other GBCA including PROHANCE) SUBJECTS WITH NO EXPOSURE TO GBCA: Has received any GBCA at any time prior to inclusion in this study Has ever been suspected of, or diagnosed with, NSF prior to the enrollment Has been suspected or diagnosed with bone cancer or any other osteoblastic or osteoclastic disease, such as septic, infectious or ischemic disease affecting physiological bone structure that has caused the bone to be diseased prior to inclusion in this study Is unable or unwilling to be examined by dermatologists or to undergo laboratory/other diagnostic evaluations should development of NSF be suspected.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| MultiHance Single Dose<br>Subjects who received a single dose of MultiHance and no other Gd agent and who are also scheduled for orthopedic surgery | Procedure: Surgery<br>* hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures<br>|
| MultiHance Multiple Dose<br>Subjects who received multiple doses of MultiHance and no other Gd agent and who are also scheduled for orthopedic surgery | Procedure: Surgery<br>* hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures<br>|
| ProHance Single Dose<br>Subjects who received a single dose of ProHance and no other Gd agent and who are also scheduled for orthopedic surgery | Procedure: Surgery<br>* hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures<br>|
| ProHance Multiple Dose<br>Subjects who received multiple doses of ProHance and no other Gd agent and who are also scheduled for orthopedic surgery | Procedure: Surgery<br>* hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures<br>|
| Control Subgroup<br>Subjects who have not received any Gd agent and who are also scheduled for orthopedic surgery | Procedure: Surgery<br>* hip, shoulder or knee replacement surgery, limb amputations or other orthopedic surgical procedures<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Gadolinium deposition in bone and skin for non-control group | Determine the long-term gadolinium deposition in bone tissue and skin in subjects undergoing orthopedic surgery using Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) in nmol gadolinium/g from surgically removed bone and skin. | At least one month from exposure to GBCA, assessed up to a total of 36 months | 
| Gadolinium deposition in bone and skin for control group | Determine the long-term gadolinium deposition in bone tissue and skin in subjects undergoing orthopedic surgery using Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) in nmol gadolinium/g from surgically removed bone and skin. | At any time, due to no GBCA exposure, assessed up to a total of 36 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Gadolinium, Bone, Skin