NCT05507931

Brief Summary

The goal of this study is to determine the number of servings of broccoli sprouts sufficient to (1) increase sulforaphane levels in the stool and blood and (2) reduce inflammatory markers in patients with mild ulcerative colitis. This is a pilot feasibility study to prepare for a larger randomized controlled trial.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
23

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2023

Typical duration for not_applicable

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 17, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 19, 2022

Completed
9 months until next milestone

Study Start

First participant enrolled

May 23, 2023

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 9, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 9, 2026

Completed
Last Updated

January 23, 2026

Status Verified

January 1, 2026

Enrollment Period

2.6 years

First QC Date

August 17, 2022

Last Update Submit

January 21, 2026

Conditions

Keywords

sulforaphaneinflammatory markersInflammatory bowel diseasedietulcerative colitis

Outcome Measures

Primary Outcomes (4)

  • Feasibility of adopting a steamed broccoli diet in patients with ulcerative colitis as measured by self report of difficulty eating broccoli sprouts.

    Self report documented in the end of study questionnaire. The questionnaire has 11 questions with the feasibility specifically linked to question 7, "how difficult was it to eat broccoli sprouts?" The answers range from 'not at all' (1) to 'very hard' (5) on a likert like scale.

    Day 28

  • Feasibility of adopting a steamed broccoli diet in patients with inflammatory bowel disease ulcerative colitis as measured by participant compliance.

    Compliance is collected through self-report of the number of servings consumed.

    Day 28

  • Levels of sulforaphane in the stool

    Level recorded in micrograms/gram.

    Day 28

  • Levels of sulforaphane in the blood

    Level recorded in micrograms/gram.

    Day 28

Study Arms (2)

1 Serving of broccoli sprouts

EXPERIMENTAL

113 grams

Dietary Supplement: 1 Serving of broccoli sprouts

3 Servings of broccoli sprouts

EXPERIMENTAL

339 grams

Dietary Supplement: 3 Servings of broccoli sprouts

Interventions

Participants will take 1 serving of broccoli sprouts daily for 28 days. The sprouts will be provided by the study team along with instructions on how to prepare the steamed broccoli sprouts (i.e., steamed for 10 minutes). In addition to taking the sprouts, participants will be asked to complete food diaries and surveys, collect blood and stool samples, as well as having 2 in-person visits.

1 Serving of broccoli sprouts

Participants will take 3 servings of broccoli a day for 28 days. The sprouts will be provided by the study team along with instructions on how to prepare the steamed broccoli sprouts (i.e., steamed for 10 minutes). In addition to taking the sprouts, participants will be asked to complete food diaries and surveys, collect blood and stool samples, as well as having 2 in-person visits.

3 Servings of broccoli sprouts

Eligibility Criteria

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

You may qualify if:

  • Documented endoscopic diagnosis of ulcerative colitis
  • Currently being treated with a stable dose of 5-ASAs, steroids, or any other medication approved for ulcerative colitis
  • If on 5-ASA, no dose changes within 2 weeks before the Day 0 visit
  • If on steroids, prednisone dose not more than 20 mg daily and entocort not more than 9 mg daily, with no dose changes within 2 weeks before the Day 0 visit
  • All other medications require a stable dose for at least 8 weeks prior to enrollment.
  • No dose changes to any IBD medication anticipated for the duration of the study
  • Body Mass Index (BMI) values 18.5-40 kg/m2
  • Not on total parenteral nutrition (TPN) or receiving tube feeds.
  • Ability to understand the study procedures, benefits and risks, and sign a written informed consent document.
  • Able to fill out questionnaires regarding dietary intakes, bowel symptoms, and study experience

You may not qualify if:

  • Taking Non-steroidal anti-inflammatory drugs (NSAIDs)
  • Following a medically-prescribed diet, on Total parenteral nutrition (TPN), or tube feeds
  • Newly diagnosed (within past month), or uncontrolled diabetes or cardiovascular disease
  • Antibiotics in the previous 2 weeks
  • Consumption of more than 5 ½ cups of servings/day of fruits and vegetables as assessed by the National Cancer Institute (NCI) Diet History Questionaire III online Food Questionnaire.
  • A known allergy or sensitivity to cruciferous vegetables like arugula, bok choy, broccoli, cabbage, cauliflower, or collard greens

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

MeSH Terms

Conditions

Colitis, UlcerativeInflammatory Bowel Diseases

Condition Hierarchy (Ancestors)

ColitisGastroenteritisGastrointestinal DiseasesDigestive System DiseasesColonic DiseasesIntestinal Diseases

Study Officials

  • Grace Chen

    University of Michigan

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Internal Medicine

Study Record Dates

First Submitted

August 17, 2022

First Posted

August 19, 2022

Study Start

May 23, 2023

Primary Completion

January 9, 2026

Study Completion

January 9, 2026

Last Updated

January 23, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations