About this trial
The aim of this randomized controlled trial is to investigate the feasibility of increasing preoperative dietary fiber intake in individuals with colorectal cancer who will undergo surgery. This will be done using 1) digital personalized dietary advice or 2) a dried vegetable product compared to 3) habitual diet (control).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥18 years;
Being diagnosed with CRC and planned to undergo elective CRC resection;
Disqualifiers
Previously have had a large abdominal resection, excluding appendectomy and cholecystectomy;
Diagnosed with Crohn's disease, Ulcerative Colitis, Celiac Disease;
Currently having a stoma;
Known allergic reactions to plants from the Asteraceae (Compositae) family (e.g., lettuce, daisies, sunflowers, artichokes, sage, tarragon, chamomile, chicory etc.);
Trial design
Parallel
Treatments tested in this trial
Dietary intervention
Other interventionIncrease dietary fiber intake
Treatment groups
Trial outcomes
Primary outcomes
Dietary fiber intake
Change in dietary fiber intake is assessed via two 24hr dietary recalls.
Secondary outcomes
Stool pattern
Change in stool frequency per week and average stool consistency per week assessed using the Bristol Stool Chart.
Gastrointestinal symptoms
Change in gastrointestinal symptoms measured with the Gastrointestinal Symptom Rating Scale (GSRS). Higher scores mean a worse outcome.
Health-related quality of life
Change in quality of life measured with the European Organization for Research and Treatment for Cancer Quality of Life Questionnaire (EORTC QLQ-C30 \& CR29). Global and functional health-related quality of life will be calculated, for which higher scores indicate better quality of life. Also symptom scales will be calculated, for which higher scores indicate higher presence or severity of a symptom.
Fecal gut microbiota composition
Measured using 16S rRNA amplicon sequencing in fecal samples.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Wageningen University
Lead sponsor
Gelderse Vallei Hospital
Collaborator
VLAG Graduate School
Collaborator
Alliance TU/e, WUR, UU, UMC Utrecht (EWUU)
Collaborator
Nutrition & Healthcare Alliance
Collaborator
WholeFiber BV
Collaborator
Wageningen Food and Biobased Research (WFBR)
Collaborator
Meander Medical Center
Collaborator
Rijnstate Hospital
Collaborator