Hidden iron shortage may slow ICU recovery — can a blood test reveal it?
NCT ID NCT07781540
First seen Aug 24, 2026 · Last updated Aug 25, 2026 · Updated 1 time
Summary
This study asks whether a simple blood test can detect iron deficiency in patients leaving the intensive care unit (ICU) and whether that deficiency affects their recovery. Many ICU patients have anemia, but standard tests may miss iron problems due to inflammation. The study will follow 462 adults who spent at least 72 hours in the ICU, measuring iron levels at discharge and tracking their recovery over time, including blood transfusions, hemoglobin, and quality of life. No treatment is given; the goal is to understand how common iron deficiency is and whether it matters for post-ICU recovery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- transferrin saturation (TSAT) blood test
- What this could lead to
- If low iron is common after ICU stays, this could pave the way for iron replacement therapies to speed up recovery.
- What could go wrong
- This is an observational study, so it can't prove cause and effect. Iron levels may not fully explain recovery, and results may not apply to all ICU patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 462 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2026
- Expected to finish
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Jan 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
All critically ill patients alive at ICU discharge
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: * Age ≥18 years * ICU length of stay ≥72 hours * Survival to ICU discharge Exclusion criteria: * Known hematologic diseases affecting erythropoiesis (e.g., aplastic anemia, myelodysplastic syndromes) * Pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
4 sites in 2 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Anestesia e Rianimazione Cardio-Toraco-Vascolare
NOT_YET_RECRUITINGSiena, Italy
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Hospital Erasme
NOT_YET_RECRUITINGBrussels, Belgium
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Policlinico Universitario Agostino Gemelli
NOT_YET_RECRUITINGRoma, 00168, Italy
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Università di Ferrara
RECRUITINGFerrara, Ferrara, 44121, Italy
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