๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-06-05

Chronotherapy of 5-Aminosalicylic Acid in Ulcerative Colitis (NCT05213234)

Chronotherapy of 5-Aminosalicylic Acid in Ulcerative Colitis: A Randomized Crossover Trial

๐Ÿ”ต Active, Not Recruiting Observational / Diagnostic ๐Ÿง  Behavioral & Psychological Program Sponsor: Rush University Medical Center

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The hypothesis of this study is that appropriate time of day of administration of oral, once daily 5-ASA therapy in alignment with the host circadian rhythms will improve subclinical inflammation and microbial structure/function and increase mucosal 5-ASA levels. All subjects will be randomized to once daily 5-ASA medications at two different times of the day: between 06:00 - 10:00 h or 18:00 - 22:00 h. Three disease assessments will performed at: 1) enrollment just before randomization; 2) month 1, at the completion of first arm (Condition 1), and 3) month 3, after completion of the second arm (Condition 2). During these study time points, participants will be asked to complete questionnaires, track their 5-ASA medication usage, provide a stool sample, blood draw, urine test, collect saliva, wear a watch to measure sleep patterns, and complete a flexible sigmoidoscopy.

Who can join: Review the eligibility criteria below.

Location: Rush University Medical Center โ€” Chicago, Illinois

Age range: 18 Years to 65 Years

๐Ÿงช Interventions in This Study

  • Chronotherapy (BEHAVIORAL)

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (2 Sites)

  • Rush University Medical Center โ€” Chicago, Illinois
  • The Medical University of South Carolina โ€” Charleston, South Carolina

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—