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GREENWATER 2.0: Reducing Iodinated Contrast Agents in Hospital Wastewater

Study acronym: GREENWATER 2
StatusRecruiting
PhaseNot specified
Started
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Record status
This record was last updated June 24, 2026 (before its estimated September 2026 completion). Its status may not reflect the trial's current state.

Record History

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  1. Eligibility criteria expanded, about 1 wordv2
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
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.
Trial Details
NCT Number NCT07620093
Lead Sponsor I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Collaborators: Bracco Imaging S.p.A.
Conditions
(from sponsor)		 Environmental Sustainability in Radiology, Iodinated Contrast Agent Recovery
Enrollment 416 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov