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NCT05382897Completed

Fasting-mimicking Diet in Treatment of Depressive Symptoms in IBD

Effects of a Fasting Mimicking Diet on Depressive Symptoms in Patients With Inflammatory Bowel Disease

Source: ClinicalTrials.gov · Last updated 11 Sept 2025

Brief summary (registry, in English)

Inflammatory bowel disease (IBD) is a chronic illness characterized by inflammation of the intestine. Many individuals with IBD suffer from depressive symptoms and anxiety which can lead to a decreased quality of life, poor treatment compliance, and higher morbidity and mortality. The object of this clinical trial is to investigate the effects of a fasting mimicking diet in IBD patients who are suffering with symptoms of depression. Participants will carry out 3 cycles of a 5-day period of a plant-based low caloric diet or a plant-based caloric sufficient diet following by 3 weeks of eating normally. Effects of the dietary intervention on microbes in the gut, immune and metabolic function, and depressive symptoms will be measured. The overall goal is to develop a safe and effective treatment to improve mental health in patients with IBD by targeting the gut microbiome through dietary interventions.

Status (registry)
Completed
Study type
Interventional
Enrollment
42 (actual)
First submitted
31 Jan 2022
Start date
1 Jul 2022
Primary completion date
2 Feb 2025
Lead sponsor
University of Alberta
NCT number
NCT05382897

What you commit to

  • Study type: Interventional
  • Participants enrolled: 42
  • From 1 Jul 2022 to the primary completion date, 2 Feb 2025
  • 2 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Subjects with prior gastrointestinal surgery and consequences such as short bowel syndrome, ostomy of small or large intestine, total colectomy, proctocolectomy, or ileoanal pouch
  • Subjects currently on a fasting/intermittent type caloric restricted diet

Other illness

  • Subjects with diabetes or celiac disease
  • Subjects allergic to nuts
  • History of psychotic or bipolar disorders or experiencing suicidal thoughts
  • Subjects with immune-compromised condition other than inflammatory bowel disease (e.g. AIDS, lymphoma)
  • Subjects with severe uncontrolled cardiovascular or respiratory disease or active malignancy

Other

  • Subjects who are reliant on partial or total parenteral nutrition
  • Subjects with a body mass index (BMI) lower than 18
  • Subjects suffering from malnutrition or at high risk of malnutrition assessed by a score of ≥6 on the abridged patient generated subjective global assessment (PGSGA)
  • Pregnant women, women who are breast feeding, or women planning on becoming pregnant
  • Unable to read English or provide informed consent

Who the study is looking for

  • Age ≥ 18 and ≤ 65 years at the time of screening
  • Diagnosis of Crohn's disease in clinical remission or with mild-moderate disease with Harvey Bradshaw Index (HBI\<8) or diagnosis of ulcerative colitis in clinical remission with partial Mayo (pMayo\<7)
  • Suffering from mild-moderate depression with PHQ-9 ≥5 and ≤ 19

Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (2)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University of Alberta Human Nutrition Research Unit
Coordinator of this site? Confirm its status
EdmontonCanadaUnknown status
University of Alberta Hospital
Coordinator of this site? Confirm its status
EdmontonCanadaUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.