Personalized Research on Diet in Ulcerative Colitis and Crohn's Disease
PRODUCE
Using Single Subject (N-of-1) Designs to Answer Patient-Identified Research Questions--Aim 1: Personalized Research on Diet in Ulcerative Colitis and Crohn's Disease
1 other identifier
interventional
54
1 country
20
Brief Summary
A series of N-of-1 trials will be used to determine the effectiveness of a specific carbohydrate diet (SCD) versus a modified SCD in patients in reducing symptoms and inflammatory burden at both the individual and population level. This is a four-year study. The study staff will recruit up to 60 patients across up to 21 sites in patients aged 7-18 with mild to moderate disease activity.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Apr 2018
Typical duration for not_applicable
20 active sites
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
September 26, 2017
CompletedFirst Posted
Study publicly available on registry
October 4, 2017
CompletedStudy Start
First participant enrolled
April 10, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 8, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
September 8, 2020
CompletedJune 28, 2022
June 1, 2022
2.4 years
September 26, 2017
June 22, 2022
Conditions
Outcome Measures
Primary Outcomes (5)
Stool frequency
Self-reported number of stools per day entered as an integer in the study mobile app
Daily through study completion (34 weeks from randomization)
Stool Consistency
Self-reported assessment of stool consistency using the Bristol Stool Scale entered in the study mobile app
Daily through study completion (34 weeks from randomization)
Pain Interference
Patient reported outcome of pain interference measured using the Patient Reported Outcomes Measurement Information System (PROMIS) Pain Interference Scale on the study app. The scale includes 8 items and responses to each item are on a 0 (Never) to 4 (Almost Always) scale. Higher scores indicate greater pain interference. Look up tables provided by the PROMIS Assessment Center will be used to transform the raw score to a T-score such that 50 is the mean for the population with a standard deviation of 10.
Weekly through study completion (34 weeks from randomization)
Gastrointestinal Symptoms
Self-reported outcome of GI symptom burden measured using the PROMIS GI Symptoms scale on the study app. The scale includes 4 items and responses to each item are on a 1 (Never) to 5 (Almost Always) scale. Higher scores indicate greater GI symptom burden. Look up tables provided by the measure developers will be used to transform the raw score to a T-score such that 50 is the mean for the population with a standard deviation of 10.
Weekly through study completion (34 weeks from randomization)
Fecal Calprotectin
Laboratory measurement of intestinal inflammation. Stool will be collected by participants at home and will be mailed to a central lab for processing and analysis.
At baseline and once at the end of each treatment period (weeks 10, 18, 26 and 34) for a total of 5 times
Secondary Outcomes (5)
Provider measured disease activity
At baseline, 10 weeks and up to 2 -4 more times as standard of care visits for the duration of the study (34 weeks from randomization)
Laboratory markers of disease activity and inflammation
At baseline, 10 weeks and up to 2 -4 more times as standard of care visits for the duration of the study (34 weeks from randomization)
Growth
At baseline, week 4, week 10, week 12 and up to 2 -4 more times as standard of care visits for the duration of the study (34 weeks from randomization)
Short Crohn's Disease Activity Index (sCDAI)
Weekly through study completion (34 weeks from randomization)
Pediatric Ulcerative Colitis Activity Index (PUCAI)
Weekly through study completion (34 weeks from randomization)
Study Arms (2)
Specific Carbohydrate Diet (First)
EXPERIMENTALParticipants will be following the Specific Carbohydrate Diet (SCD). Allowed foods include meat/fish/poultry, eggs, some legumes (e.g., lentils and split peas are permitted, chickpeas and soybeans are not), fully fermented yogurt, non-starchy vegetables, ripe fruit, nuts/seeds, honey and nut flours (e.g. almond flour or coconut flour). Restricted foods include all grains, milk products aside from 24-hour fermented SCD yogurt and cheeses aged greater than 30 days, starchy vegetables, processed foods with food additives and sweeteners other than honey.
Modified Specific Carbohydrate Diet (First)
EXPERIMENTALParticipants will be following a modified Specific Carbohydrate Diet (MSCD). In addition to the foods in the SCD, allowed foods will expand to include organic rice, oats, sweet potatoes, grade A maple syrup and cocoa. Gluten, corn products, milk products (except yogurt and hard cheeses), sweeteners (except honey), and process foods are still restricted.
Interventions
Patients will be randomized to start with either a strict SCD or modified SCD. Participants will alternate between each diet in 8-week intervals for a total duration of approximately 34 weeks. Participants will complete two 8-week intervention periods on each diet.
Patients will be randomized to start with either a strict SCD or modified SCD. Participants will alternate between each diet in 8-week intervals for a total duration of approximately 34 weeks. Participants will complete two 8-week intervention periods on each diet.
Eligibility Criteria
You may qualify if:
- Diagnosis of Crohn's Disease (CD) or ulcerative colitis (UC) or Indeterminate colitis (IC)
- Age 7-18 years
- Enrolled in the ImproveCareNow (ICN2) registry
- Evidence of acute inflammation and/or elevated acute phase reactant as measured by Fecal calprotectin 1.5 times the upper limit of normal, Lactoferrin 1.5 times the upper limit of normal, CRP 1.15 times the upper limit of normal, or ESR 1.15 times the upper limit of normal (based on local reference ranges) obtained within 8 weeks of enrollment.
- Potential participants who are close to meeting one of the acute inflammation and/or elevated acute phase reactant markers and who meet all other study criteria will be considered for study participation on a case by case basis by the investigative study team in consultation with the patient's primary gastroenterologist.
You may not qualify if:
- Complex and Unstable IBD:
- Currently or within the past 9 months has had an abscess, fistula, stricturing CD, or ostomy
- Severe disease activity as measured by a short Pediatric Crohn's Disease Activity Index (SPCDAI) score of \>45 or Pediatric Ulcerative Colitis Activity Index (PUCAI) score of \>60 assessed within three weeks of enrollment
- Ever had history of full colectomy
- Hospitalization or surgery planned within 3 months
- Ongoing active gastrointestinal infection
- Severe Malnutrition (BMI less than 5th percentile)
- Recent medication changes including:
- Thiopurines, natalizumab, or methotrexate started within 8 weeks prior to enrollment
- Anti TNF (infliximab, adalimumab) started within 8 weeks prior to enrollment
- Vedolizumab started within 16 weeks prior to enrollment
- Increase in corticosteroids within 4 weeks of screening or have dose \>20 mg prednisone or equivalent
- Evidence of Other Complicating Medical Issues:
- Other serious medical conditions, such as neurological, liver, kidney, or systemic disease
- Serious psychological or psychiatric conditions such as eating disorders or self-harm
- +9 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Children's Hospital Medical Center, Cincinnatilead
- University of California, San Franciscocollaborator
- Seattle Children's Hospitalcollaborator
- Dayton Children's Hospitalcollaborator
- Brown Universitycollaborator
Study Sites (20)
Arkansas Children's Hospital
Little Rock, Arkansas, 72202, United States
Children's Hospital of Los Angeles
Los Angeles, California, 90027, United States
UCSF Benioff Children's Hospital Oakland
Oakland, California, 94609, United States
Lucile Packard Children's Hospital
Palo Alto, California, 94304, United States
University of California San Francisco Benioff Children's Hospita;
San Francisco, California, 94158, United States
Nemours, Alfred I duPont Hospital for Children
Wilmington, Delaware, 19803, United States
Nemours Children's Speciality Care
Jacksonville, Florida, 32207, United States
Nemours Children's Hospital
Orlando, Florida, 32827, United States
GI Care for Kids
Atlanta, Georgia, 30342, United States
Riley Hospital for Children
Indianapolis, Indiana, 46202, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Children's Mercy Hospital
Kansas City, Missouri, 64108, United States
Levine Children's Hospital
Charlotte, North Carolina, 28203, United States
Nationwide Children's Hospital
Columbus, Ohio, 43205, United States
Oregon Health Sciences University
Portland, Oregon, 97239, United States
Dell Children's Medical Center of Central Texas
Austin, Texas, 78723, United States
UT Soutwestern Medical Center
Dallas, Texas, 75235, United States
Pediatric Specialists of Virginia
Fairfax, Virginia, 22031, United States
Children's Hospital of the King's Daughters
Norfolk, Virginia, 23507, United States
Seattle Children's
Seattle, Washington, 98105, United States
Related Publications (1)
Kaplan HC, Opipari-Arrigan L, Yang J, Schmid CH, Schuler CL, Saeed SA, Braly KL, Chang F, Murphy L, Dodds CM, Nuding M, Liu H, Pilley S, Stone J, Woodward G, Yokois N, Goyal A, Lee D, Yeh AM, Lee P, Gold BD, Molle-Rios Z, Zwiener RJ, Ali S, Chavannes M, Linville T, Patel A, Ayers T, Bassett M, Boyle B, Palomo P, Verstraete S, Dorsey J, Kaplan JL, Steiner SJ, Nguyen K, Burgis J, Suskind DL; ImproveCareNow Pediatric IBD Learning Health System. Personalized Research on Diet in Ulcerative Colitis and Crohn's Disease: A Series of N-of-1 Diet Trials. Am J Gastroenterol. 2022 Jun 1;117(6):902-917. doi: 10.14309/ajg.0000000000001800. Epub 2022 Apr 20.
PMID: 35442220RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Heather C Kaplan, MD
Children's Hospital Medical Center, Cincinnati
- PRINCIPAL INVESTIGATOR
Lisa Opipari-Arrigan, PhD
Children's Hospital Medical Center, Cincinnati
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 26, 2017
First Posted
October 4, 2017
Study Start
April 10, 2018
Primary Completion
September 8, 2020
Study Completion
September 8, 2020
Last Updated
June 28, 2022
Record last verified: 2022-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- SAP
- Time Frame
- Within a year after study completion.
We intend to provide access to the de-identified, HIPAA-compliant databases as required within a year after the study has been completed. Data plans, analysis plans, data dictionaries, study manuals and annotated case report forms will be made available, upon request, in a read-only format (PDF). Each dataset will be accompanied by appropriate documentation listing each variable, variable definition, decode values (if appropriate), an indication of the variable as a source collected or derived variable, and derivation algorithms for any derived values. Datasets will be available as SAS, SAS transport, XML or CSV with labels. Other formats may be created if requested. All necessary security measures will be taken to ensure patient privacy and confidentiality, and details on how data may be used, including the use of de-identified data sets, will be included in the informed consent.