NCT04795960

Brief Summary

This pilot study is being completed to determine whether a low-serine diet vs a high serine diet will reduce inflammation and symptoms in Crohn's disease (CD), as well as determine whether a low-serine diet (vs. a high serine diet) will improve responses in patients initiating therapy with Ustekinumab (Stelara), an FDA-approved biologic therapy for Crohn's disease.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Mar 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
withdrawn

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

March 9, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 12, 2021

Completed
6 days until next milestone

Study Start

First participant enrolled

March 18, 2021

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
Last Updated

June 12, 2023

Status Verified

June 1, 2023

Enrollment Period

2 years

First QC Date

March 9, 2021

Last Update Submit

June 9, 2023

Conditions

Keywords

UstekinumabStelaraDietCrohn's

Outcome Measures

Primary Outcomes (1)

  • The mean simple endoscopic subscore Crohn's disease (SES-CD) score at week 25 between the two treatment groups.

    This will be calculated by endoscopist at week 25.

    25 weeks

Secondary Outcomes (2)

  • The mean Crohn's disease patient report outcomes (CD-PRO) score at week 2 will be compared between the two groups with Student's t test

    2 weeks

  • The mean CD-PRO scores calculated by study team at week 25 will be compared between the two groups with Student's t test.

    25 weeks

Other Outcomes (9)

  • The mean stool flagellin content at week 2 will be compared between the two groups with Student's t test.

    2 weeks

  • The mean lamina propria mucosa (LPM) response in stool at week 2 will be compared between the two groups with Student's t test.

    2 weeks

  • The mean C-reactive protein (CRP) at week 2 will be compared between the two groups with Student's t test.

    2 weeks

  • +6 more other outcomes

Study Arms (2)

Low serine diet

EXPERIMENTAL
Dietary Supplement: Low serine diet

High serine diet

EXPERIMENTAL
Dietary Supplement: High serine diet

Interventions

Low serine dietDIETARY_SUPPLEMENT

Participants will be on this diet 1 week prior to initiation and 1 week after initiation of Ustekinumab (standard of care medication). The meals will be prepared in the Michigan Clinical Research Unit (MCRU) at the University of Michigan Health System and given to the participants.

Low serine diet
High serine dietDIETARY_SUPPLEMENT

Participants will be on this diet 1 week prior to initiation and 1 week after initiation of Ustekinumab (standard of care medication). The meals will be prepared in the Michigan Clinical Research Unit (MCRU) at the University of Michigan Health System and given to the participants.

High serine diet

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Confirmed diagnosis of Crohn's Disease (CD) for at least 3 months prior to baseline. Appropriate documentation of biopsy results consistent with the diagnosis of CD, as determined by the investigator.
  • Simple endoscopic subscore Crohn's disease (SES-CD) ≥ 7 for ileocolonic CD (or \>=4 if only ileal CD) as confirmed by Dr. Higgins' scoring of colonoscopy.
  • Are scheduled to begin Ustekinumab within the next 7-60 days
  • Must be scheduled for clinically indicated colonoscopy, ordered by primary Gastroenterologist physician, and covered by insurance
  • Must have access to a computer capable of completing video visits
  • Must be willing to follow assigned meat-free diet provided by the study exclusively for 2 weeks
  • Patients on anti-diarrheals must be on a stable dose for at least 2 weeks
  • Prednisone is allowed up to a daily dose of 20 mg, with a stable dose for at least 1 week

You may not qualify if:

  • Subject with a current diagnosis of Ulcerative Colitis
  • Subjects requiring or receiving any Total Parenteral Nutrition (TPN) and/or exclusive enteral nutrition.
  • Subjects who are pregnant or plan to become pregnant over the duration of the study
  • Antibiotics in the previous 2 weeks.
  • Probiotics in the previous 2 weeks.
  • Ongoing therapy with infliximab, adalimumab, certolizumab, vedolizumab, or tofacitinib, is not allowed - must stop at least 1 week prior to ustekinumab start.
  • Changes in dose of 5-aminosalicylates within the past 1 week - must be on a stable dose for at least one week.
  • Changes in dose of immunomodulators (including Azathioprine, 6-mercaptopurine, methotrexate) within the past 4 weeks - must be on a stable dose for 4 weeks.
  • Subjects with the following known complications of CD; Toxic megacolon, Short bowel syndrome or short gut (less than 100 centimeters, Ostomy, Symptomatic bowel strictures (scope cannot be passed through), any diagnosis that could interfere with nutrient absorption, note that actively draining fistulas are allowed at entry.
  • Diabetes
  • Subjects who use dietary supplements such as liquid or powder protein drinks/shakes, meal replacement shakes, and fiber supplements, etc. must be willing to stop at least 24 hours prior to starting the assigned diet
  • Known allergy to soy products
  • Oral Iron must be stopped at least 24 hours prior to baseline
  • For severe anemia, intravenous (IV) iron can replace oral iron if approved and ordered by the prescribing physician
  • Any subject currently hospitalized
  • +3 more criteria

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

Crohn Disease

Condition Hierarchy (Ancestors)

Inflammatory Bowel DiseasesGastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal Diseases

Study Officials

  • Peter D Higgins, MD

    University of Michigan

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Internal Medicine

Study Record Dates

First Submitted

March 9, 2021

First Posted

March 12, 2021

Study Start

March 18, 2021

Primary Completion

March 1, 2023

Study Completion

March 1, 2023

Last Updated

June 12, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations