NCT06774079 · University of Miami
Glucagon-like Peptide-1 Receptor Agonist (GLP-1 RA) and Diet in Inflammatory Bowel Disease (IBD) Patients
What this study is about
The purpose of this study is to use diet and an injectable medication called tirzepatide (Zepbound) glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonist (GIP-GLP-1 RA) medication as adjunctive therapy (another treatment used together with the primary treatment) for Crohn's disease patients with mild disease who are on stable doses of biologic medication (infliximab or adalimumab) and who have a body mass index (BMI) of at least 27.
View original scientific description
The purpose of this study is to use diet and an injectable medication called tirzepatide (Zepbound) glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonist (GIP-GLP-1 RA) medication as adjunctive therapy (another treatment used together with the primary treatment) for Crohn's disease patients with mild disease who are on stable doses of biologic medication (infliximab or adalimumab) and who have a body mass index (BMI) of at least 27.
Interventions
DRUG
Tirzepatide
Patients in this arm will receive tirzepatide starting at 2.5 mg subcutaneous (SC) weekly for 4 weeks, then increase to 5 mg SC weekly for 4 weeks and then 7.5 mg SC weekly for the last 4 weeks of the intervention period. Place of injection includes abdomen, thigh, or upper arm.
BEHAVIORAL
Mediterranean diet
The diet is comprised of a content of 25-30 grams of fiber per day (from fruits, vegetables, whole grains) that is low in animal protein and minimally processing of foods The diet arm will receive dietary guidance from our dietician on weekly 30-minute guided sessions. Participants will be encouraged to adhere to the diet for up to three meals per day for the duration of the study.
Primary outcome measures
Change in percentage of participants retained
Time frame: Baseline, 12 weeks
The percentage of participants retained will be measured
Number of patients who adhere to diet measured by 24 hour dietary recall
Time frame: Up to 12 weeks
Number of patients who adhere to diet measured by 24 hour dietary recall
Number of patients who adhere to medications measured by self report
Time frame: Up to 12 weeks
Number of patients who adhere to medications measured by self report
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adult patients (≥18 years old)
- Confirmed diagnosis of Crohn's disease
- Mildly active disease, defined by clinical symptoms using the Harvey Bradshaw Index (HBI) score between 5 and 7 (the HBI is a continuous score ranging from 0-16 where \<4 is considered remission)
- BMI ≥ 27 kg/m2
- Patients will be on stable doses of medical therapy (anti-tumor necrosis factor (TNF) alpha blockers)
Exclusion criteria
- Patients under 18 years of age
- Patients with ulcerative colitis
- Patients with infectious colitis
- BMI\<27 kg/m2
- Patients with type 1 or type 2 diabetes
- Contraindications to a GIP/GLP-1 RA, including patients with a personal or family history of medullary thyroid cancer or in patients with Multiple Endocrine Neoplasia syndrome type 2
- Patients already on GIP/GLP-1 RA therapy
- Patients with the following chronic symptoms: severe constipation, nausea, and/or vomiting
- Patients with the following medical history: small bowel obstruction in the last year, intestinal stricture, known or suspected diagnosis of gastroparesis
- Adults unable to consent
- Pregnant patients (will be confirmed via a pregnancy test)
Where
- Miami, Florida
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 30, 2026 · Source of record for eligibility and locations