Combination of Diet and 5ASA ( 5-aminosalicylic Acid) for Ulcerative Colitis

  • End date
    Sep 30, 2022
  • participants needed
  • sponsor
    Prof. Arie Levine
Updated on 28 January 2021


Combination Therapy with Drug and Diet for Induction of Remission in Mild to Moderate Active Pediatric Ulcerative colitis: A Single Blinded, International Randomized Controlled Trial


This will be a 12 week, single blinded Randomized controlled trial (RCT) in children and adolescents with mild to moderate Ulcerative Collitis (UC) comparing 5ASA (recommended dosing 60-75 mg/kg/day; minimum 2.5 maximum 4 grams/day) with fiber restriction for 6 weeks followed by free diet (Group 1) to 5ASA with Ulcerative Collitis Diet (UCD) for 6 weeks, followed by the step down UCD for the next 6 weeks. Inclusion criteria will include children weighing >30kg, Pediatric Ulcerative Collitis Activity index (PUCAI) 10-45, no treatment with 5ASA (treatment nave or treated with thiopurines for example) or currently treatment with 5ASA but <2 grams/day, ages 10-19 years, with disease extent E2-E4 by the Paris Classification. Patients on thiopurines may continue existing dose if dose is stable for at least 8 weeks.

Exclusion criteria are Patients with acute severe colitis (ASC) in the previous year, requiring oral or intravenous steroids in the previous 3 months, or patients treated with Anti- Tumor necrosis factor alfa (TNFa) regimens. Importantly, there is no placebo arm and both groups will be treated with the same currently recommended drug at currently recommended doses; the only difference between groups being their diets.

The primary endpoint will be remission defined as PUCAI<10 at week 6; Secondary endpoints will be response defined as a drop in PUCAI of 10 or remission at week 6, sustained steroid free remission week 12 and improvement in mucosal healing by Ulcerative Colitis Endoscopic Index of Severity (UCEIS) at week 12 as well as safety and tolerance. Intolerance will be defined as patients stopping the diet because of refusal to continue diet. Patients will be seen at weeks 0, 3, 6, and 12. PUCAI will be assessed at every visit; fecal calprotectin will be assessed at baseline, week 6 and 12. Sigmoidoscopy to assess mucosal healing will be performed at week 12 in patients who had a baseline colonoscopy or sigmoidoscopy. Sigmoidoscopies to evaluate healing will be voluntary and patients will not be excluded if they do not consent to have a follow up sigmoidoscopy.

Condition Ulcerative Colitis, Ulcerative Colitis, Ulcerative Colitis (Pediatric), Ulcerative Colitis (Pediatric)
Treatment Group 1- Control Diet, Group 2- UCD Diet
Clinical Study IdentifierNCT03980405
SponsorProf. Arie Levine
Last Modified on28 January 2021


Yes No Not Sure

Inclusion Criteria

Informed consent
Established diagnosis of UC by the Paris classification and Revised Porto Criteria
Age: 10 - 19 years (inclusive)
Mild to moderate active disease, 10 PUCAI 45
Extent E2-E4 by the Paris classification
Weight >30 kg (ensures that patients who received 5ASA 2 grams are eligible)
Stable medication (IMM/ 5ASA) use or no change in medication use for the past 6 weeks. Patients who have received topical 5ASA therapy for <10 days and are active may be included if topical therapy is stopped at enrolment
Patients not receiving 5ASA or using 5ASA<50mg/kg/day

Exclusion Criteria

Any proven current infection such as positive stool culture, parasite or C. difficile
Steroids (oral or intravenous) use in the past 3 months
Patients who continue topical 5ASA or steroids after enrolment
Use of biologics in present or in past 6 months
Use of antibiotics for more than one week in the past 60 days
Acute severe UC in the previous 12 months
Current extra intestinal manifestation of UC
Primary Sclerosing Cholangitis (PSC) or Liver disease
Vegans or patients unwilling or unable to consume eggs
Inflammatory Bowel Disease (IBD) unclassified
Exclusion criteria Comments
Stool culture, parasite or C. difficile will only be measured if the patient has diarrhea
Patients who have received treatment enemas for 3 weeks or less then 3 days and are active, can be included but must stop the enemas on the day of enrolment
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact



Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note