GREENWATER 2.0: Reducing Iodinated Contrast Agents in Hospital Wastewater
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorI.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
About this trial
The goal of this observational study is to learn if using a dedicated urine collection device after CT scans can help reduce the amount of iodinated contrast agent released into hospital wastewater in adult outpatients undergoing contrast-enhanced CT scans.
The main questions it aims to answer are:
* Does the dedicated urine collection device improve patient acceptance and compliance with post-contrast urine collection? * How much iodinated contrast agent can be recovered from urine collected after CT scans?
Participants will:
* Have their planned CT scan with iodinated contrast agent as part of their regular medical care. * Wait in the radiology department for about 60 minutes after the contrast injection. * Use a dedicated urine collection device before leaving the hospital. * Answer short questions about their experience with the device.
This does not change the CT scan, the contrast agent used, or the standard clinical imaging procedure. The only additional procedure is the use of the dedicated urine collection device after the scan.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adult patients aged 18 years or older.
Patients scheduled for a clinically indicated contrast-enhanced CT scan with iodinated contrast agent.
Patients able to provide written informed consent.
Patients willing to wait approximately 60 minutes after contrast injection before using the dedicated urine collection device.
Disqualifiers
None
Trial population
Adult outpatients aged 18 years or older undergoing clinically indicated contrast-enhanced CT scans with iodinated contrast agents at IRCCS Ospedale Galeazzi - Sant'Ambrogio. Participants will receive standard clinical care, with no modification to the CT protocol or contrast administration. The only study-specific procedure is the post-contrast use of a dedicated urine collection device after an approximately 60-minute waiting period.
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
Dedicated Urine Collection Device (Toilet)
DeviceA dedicated urine collection device installed in the radiology department for use after contrast-enhanced CT scans. Participants will undergo their CT scan according to standard clinical practice, with no change to the imaging protocol, contrast agent selection, or contrast administration. After iodinated contrast injection, participants will be asked to wait approximately 60 minutes and then use the dedicated device before leaving the hospital. The collected urine will be used to assess the potential recovery of iodinated contrast agent residues and the feasibility of this workflow in routine radiology practice.
Treatment groups
416 Participants
are divided into 1 treatment groupGroup A: Adult Outpatients Undergoing Contrast-Enhanced CT1 intervention
Trial outcomes
Primary outcomes
1
Patient Acceptance and Compliance With Post-Contrast Urine Collection
Proportion of eligible participants who agree to participate in the study and complete the post-contrast urine collection procedure using the dedicated urine collection device after contrast-enhanced CT.
Time frame
At the time of the CT examination, up to 60 minutes after contrast injectionSecondary outcomes
1
Potential Recovery of Iodinated Contrast Agent From Collected Urine
Amount or proportion of iodinated contrast agent recovered from urine collected using the dedicated urine collection device after contrast-enhanced CT, based on the administered contrast agent and urine analysis.
Time frame
At the time of the CT examination, up to 60 minutes after contrast injectionSponsors and contacts
Click on the lead sponsor to view all of their trials.
I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Lead sponsor
Bracco Imaging S.p.A.
Collaborator
Source ClinicalTrials.gov