Fatigue, Quality of Life, Cognitive Function and Physical Ability in Patients Suspected of Colorectal Malignancy

  • End date
    Mar 5, 2023
  • participants needed
  • sponsor
    Hospital of South West Jutland
Updated on 5 July 2022


The aim is to investigate if iron deficiency at the time of colorectal cancer diagnosis has an influence on fatigue, quality of life, cognition and physical ability.


Around 60% of newly diagnosed colorectal cancer patients suffer from iron deficiency at the time of diagnosis. The study hypothesis is that, besides leading to anemia, iron deficiency might be associated with impaired patient report outcomes in the domains of fatigue, quality of life, cognitive impairment and lower physical ability. No previous studies on colorectal cancer patients and iron deficiency are available.

The participants (patients suspected of colorectal cancer after endoscopy) will be tested on these parameters. The participants and the investigators are blinded to the patients iron status. The study takes place before any preoperative iron treatment. Multivariate analysis will be used taking into account, gender, age, hemoglobin, tumor stage.

Condition Iron-deficiency, Iron Deficiency Anemia, Colorectal Cancer, Fatigue, Quality of Life, Cognitive Impairment
Treatment iron deficiency, iron deficiency
Clinical Study IdentifierNCT04749589
SponsorHospital of South West Jutland
Last Modified on5 July 2022


Yes No Not Sure

Inclusion Criteria

patients in whom endoscopy has raised suspicion of colorectal malignancy

Exclusion Criteria

non fluent in Danish language
cerebral impairment (ex severe dementia) so that informed consent can not be obtained
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