Mediterranean Diet vs no Dietary Intervention for Improving Signs and Symptoms of Psoriasis in Patients Treated With Anti-IL-17 or Anti-IL-23 Inhibitors

NCT06399432 | Recruiting

• 1 other identifier: STUDY20220312
• Study Type: interventional
• Target: 36
• Locations: 1 country
• Sites: 1

Brief Summary

In this study, participants will have 3 or 4 total study visits over approximately 10 total weeks. There is a two week medication washout period in between the 1st and 2nd visits. This washout only applies if participants are using a prohibited psoriasis medication (such as topical steroids or oral psoriasis medications, like methotrexate). During the washout period, participants will have to stop the prohibited medication(s). If participants are not using any prohibited medications, then the 1st and 2nd visits can be combined and participants will only have 3 total in-person visits. Participants will be randomly assigned (by chance; like flipping a coin) to either the Mediterranean Diet or no dietary intervention. After 4 weeks on the diet, participants will start treatment with either Anti-IL-17 or Anti-IL-23 therapy. The biologic treatments will prescribed by the participants regular dermatologist and not as a part of the study.

Conditions

Psoriasis

Keywords

risankizumab; tildrakizumab; brodalumab; izekizumab; secukinumab; guselkumab

Outcome Measures

Primary Outcomes (4)

• Percentage of participants who had a change in blood monocytes profiles.

  Baseline, 10 weeks

• Percentage of participants who had a change in T-cell profiles.

  Baseline, 10 weeks

• Change in blood monocyte profile.

  Baseline, 10 weeks

• Change in T-cell profiles.

  Baseline, 10 weeks

Secondary Outcomes (6)

• Change in serum biomarkers.

  Baseline, 10 weeks

• Change in gut microbiome.

  Baseline, 10 weeks

• Change in single cell gene expression.

  Baseline, 10 weeks

• Change in metabolomics profile.

  Baseline, 10 weeks

• Change in serum chemistries.

  Baseline, 10 weeks

Study Arms (2)

Mediterranean Diet

ACTIVE COMPARATOR

Participants in this arm will follow the Mediterranean Diet.

Behavioral: Mediterranean Diet

No Dietary Intervention

NO INTERVENTION

Participants in this arm will have no dietary intervention.

Interventions

Mediterranean Diet BEHAVIORAL

In the Mediterranean Diet, all foods are included. Red meat will be limited to 1/week, poultry to ≤3 times/week and fish to 2-3 times/week. Supplementation with extra-virgin olive oil and nuts, providing 1 liter of olive oil per week and 30 gr a day of nuts. The dietician will personalize the dietary advice by adapting it to the patient's condition, preferences and beliefs, will encourage adherence, and transmit a sense of empowerment. A change in diet with specific, attainable goals will be negotiated between the dietician and the participant. Dieticians will conduct a phone call once in every 2-week period to assess dietary compliance using a 24-hour food recall, the Mediterranean Diet Adherence Form. MD patients will keep a diet diary for 3 days every two weeks, which they will discuss with the dietician during their scheduled dietician assessment. The Baseline Visit with the dietician can occur either in-person or via video communication software.

Mediterranean Diet

Eligibility Criteria

• Age: 18 Years - 94 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Diagnosis of chronic plaque psoriasis for at least 12 months prior to Screening.
• Have moderate to severe plaque psoriasis at Baseline as defined by
• BSA ≥5% OR
• sPGA ≥3 (moderate to severe) OR
• PASI ≥5
• Must have been prescribed, per standard-of-care, an Anti-IL-17 or Anti-IL-23 therapy for psoriasis, which the patient has not yet started, but is willing to start during the study.
• Eligible therapies are Secukinumab, Ixekizumab, Brodalumab, Guselkumab, Risankizumab, and Tildrakizumab.
• Must be in good health (except for psoriasis) as judged by the Investigator, based on medical history and physical examination.
• Must be eligible for a weight loss program, defined as being in good general health and having a BMI between 25 to 40.

You may not qualify if:

• Other than psoriasis, history of any clinically significant (as determined by the Investigator) cardiac (clinically advanced cardiovascular disease including stent, past history of MI, thrombotic event or arterial calcification), active or history of inflammatory bowel disease, endocrinologic, pulmonary, neurologic, psychiatric, hepatic, renal, hematologic, immunologic disease, or other major uncontrolled disease.
• Any condition, including the presence of laboratory abnormalities, which would place the subject at unacceptable risk if he/she were to participate in the study.
• Any condition, including other inflammatory diseases or dermatologic conditions that confound the ability to interpret data from the study.
• Prior history of suicide attempt at any time in the subject's lifetime prior to screening or randomization, or major psychiatric illness requiring hospitalization within the last 3 years.
• Pregnant or breast-feeding.
• Have failed more than 3 systemic agents for treatment of psoriasis.
• History of allergy to any component of Anti-IL-17 or Anti-IL-23 therapies.
• Had a serious infection (including, but not limited to, hepatitis, pneumonia, sepsis, cellulitis, meningitis or pyelonephritis) or have been hospitalized for an infection. Subject must be cured of infection \> 4 weeks before Screening.
• Have a history of, or ongoing, chronic or recurrent infectious disease, including, but not limited to, chronic renal infection, chronic chest infection (e.g., bronchiectasis), sinusitis, recurrent urinary tract infection (e.g., recurrent pyelonephritis, chronic non-remitting cystitis), an open, draining, or infected skin wound or ulcer.
• Had a Bacillus Calmette-Guérin (BCG) vaccination within 1 year prior to screening.
• History of positive human immunodeficiency virus (HIV), or have congenital or acquired immunodeficiency (e.g., common variable immunodeficiency disease).
• Active substance abuse or a history of substance abuse within 6 months prior to Screening.
• Bacterial infections requiring treatment with oral or injectable antibiotics, or significant viral or fungal infections, within 4 weeks of Screening. Any treatment and cure for such infections must have been completed at least 4 weeks prior to Screening.
• Malignancy or history of malignancy, except for:
• treated \[i.e., cured\] basal cell or squamous cell in situ skin carcinomas;

Sponsors & Collaborators

• University Hospitals Cleveland Medical Center: lead

Study Sites (1)

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

RECRUITING

MeSH Terms

Conditions

Psoriasis

Interventions

Diet, Mediterranean

Condition Hierarchy (Ancestors)

Skin Diseases, Papulosquamous; Skin Diseases; Skin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Diet, Plant-Based; Diet Therapy; Nutrition Therapy; Therapeutics; Diet; Nutritional Physiological Phenomena; Diet, Food, and Nutrition; Physiological Phenomena

Study Officials

• Neil Korman, MD

  University Hospitals Cleveland Medical Center

  PRINCIPAL INVESTIGATOR

• Jordan K Kahle, MD

  University Hospitals Cleveland Medical Center

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Kym Warner

CONTACT

216-844-7546; Kymberlyn.Warner@UHhospitals.org

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principle Investigator

Study Record Dates

• First Submitted: April 30, 2024
• First Posted: May 3, 2024
• Study Start: October 18, 2022
• Primary Completion (Estimated): July 1, 2026
• Study Completion (Estimated): July 1, 2026
• Last Updated: May 25, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)