NCT04505410

Brief Summary

The purpose of this study is to determine whether a diet intervention (the Fasting Mimicking diet) will help induce clinical and biochemical response to an advanced therapy in patients with ulcerative colitis. Study period will be 8 weeks during induction of advanced therapies. The primary aims of this study will be clinical response, as determined by the simple clinical colitis activity index (SCCAI). Secondary outcomes will be improvement in fecal calprotectin and C-reactive protein levels.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Sep 2020

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 5, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 10, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

September 18, 2020

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 7, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 7, 2023

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

December 30, 2024

Completed
Last Updated

February 28, 2025

Status Verified

February 1, 2025

Enrollment Period

3.2 years

First QC Date

August 5, 2020

Results QC Date

December 5, 2024

Last Update Submit

February 14, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Percentage of Patients Who Achieved Clinical Response

    Clinical response will be evaluated using the Simple Clinical Colitis Activity Index (SCCAI). The SCCAI has a total range from 0-19 with a higher score indicating greater disease activity. A clinical response is defined as a SCCAI decrease of ≥3 points from baseline. Therefore, the study team will examine the percentage of patients who achieve 'clinical response', defined by an SCCAI decrease of ≥3 points.

    8 weeks

Secondary Outcomes (2)

  • Fecal Calprotectin Levels Measured in Micrograms/Gram

    baseline, 8 weeks

  • CRP Levels Measured in mg/dl

    baseline, 8 weeks

Study Arms (2)

Medication plus FMD group

EXPERIMENTAL

Participants in this group with UC consuming a standard, regular low-fiber diet will start an advanced therapy for eight consecutive weeks with the addition of two, five-day cycles of Fast Mimicking Diet (FMD) daily meals on weeks 2 and 7.

Other: A plant based high fiber diet that mimics fasting ("FMD") plus advanced therapy

Medication only group

ACTIVE COMPARATOR

Participants in this group with UC consuming a diet based on tolerance will start an advanced therapy for eight consecutive weeks.

Drug: Advanced therapy only without dietary intervention

Interventions

Patients will do two 5-day cycles of a fasting mimicking diet. They will start the first diet cycle 1 week after initiating a new advanced therapy: Tofacitinib and Upadacitinib (JAK inhibitors), Infliximab (anti-TNF), Ustekinumab or Risankizumab (IL-23 inhibitors).

Medication plus FMD group

Patients in this group will start an advanced therapy and follow a diet solely based on dietary tolerance: new advanced therapy: Tofacitinib and Upadacitinib (JAK inhibitors), Infliximab (anti-TNF), Ustekinumab or Risankizumab (IL-23 inhibitors).

Medication only group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with ulcerative colitis who are beginning tofacitinib therapy.
  • Patients with ulcerative colitis who are initiating second line biologic therapy with ustekinumab
  • Patients with ulcerative colitis who are initiating second line biologic therapy with infliximab
  • Patients aged 18 years or older.
  • Patients with active disease defined as simple clinical colitis activity index (SCCAI) \>2
  • Patients who have not been on antibiotics for 2 weeks or probiotics.

You may not qualify if:

  • Patients younger than 18 years.
  • Patients with clinical signs of fulminant colitis, toxic megacolon, ischemic colitis or impending hospitalization for severe ulcerative colitis.
  • Patients with concomitant infectious colitis.
  • Patients allergic nuts/soy/sesame/oats.
  • Patients who do not like the food items that form part of the kits for the fasting mimicking diet (see below).
  • Patients that are diabetics on a glucose lowering drug.
  • Individuals with a history of syncope/presyncope with fasting or from medical conditions.
  • Women who are pregnant or nursing.
  • Individuals with very low BMI\< or equal to 18.
  • Patients with the following comorbidities: chronic kidney disease, diabetes, active cancer.
  • Prohibited concomitant therapies will include TNF antagonists, azathioprine, methotrexate, and mercaptopurine.
  • Patients who routinely have fasting eating habits

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Miami

Miami, Florida, 33136, United States

Location

MeSH Terms

Conditions

Colitis, Ulcerative

Interventions

Diet Therapy

Condition Hierarchy (Ancestors)

ColitisGastroenteritisGastrointestinal DiseasesDigestive System DiseasesInflammatory Bowel DiseasesColonic DiseasesIntestinal Diseases

Intervention Hierarchy (Ancestors)

Nutrition TherapyTherapeutics

Limitations and Caveats

First, due to the COVID pandemic, we were unable to reach the recruitment numbers. Another limitation: initial protocol designed to only examine patients initiating tofacitinib but delays in recruitment due to COVID, together with the approval of upadacitinib, led to poor recruitment. Then expanded criteria to include: upadacitinib and to patients initiating their second- or third-line biologic (infliximab, ustekinumab, or risankizumab). Also sample size was small.

Results Point of Contact

Title
Associate Professor, Director of Translational Studies for the Crohn's and Colitis Center
Organization
University of Miami Miller School of Medicine

Study Officials

  • Oriana Damas, MD

    University of Miami

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

August 5, 2020

First Posted

August 10, 2020

Study Start

September 18, 2020

Primary Completion

December 7, 2023

Study Completion

December 7, 2023

Last Updated

February 28, 2025

Results First Posted

December 30, 2024

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Data and code are available upon request.

Locations