Actively Recruiting

Phase Not Applicable
Age: 3Years - 18Years
All Genders
ID07223255

Gastrointestinal Response of Pediatric Cystic Fibrosis Patients on Mediterranean Diet

Led by Dartmouth-Hitchcock Medical Center · Updated on 2026-05-05

20

Participants Needed

2

Research Sites

N/A

Total Duration

On this page

Sponsors

D

Dartmouth-Hitchcock Medical Center

Lead Sponsor

N

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Collaborating Sponsor

AI-Summary

What this Trial Is About

This research aims to evaluate the effects of a Mediterranean diet on children with cystic fibrosis (CF), particularly focusing on gastrointestinal health. The study addresses the changing nutritional needs of pediatric CF patients in the context of advanced therapies, moving away from traditional high-fat, high-calorie diets. Researchers seek to provide clearer dietary guidance for long-term health, given the increased life expectancy and evolving care landscape for children with CF. Participants will follow a Mediterranean diet exclusively for six months. The study will collect fecal samples before and after the diet to analyze changes in the gut microbiome, inflammation markers, and metabolic profiles. Researchers will also assess symptoms using a gastrointestinal symptom tracker and monitor nutritional status through measurements like weight, height, BMI Z score, and mid-upper arm circumference. Throughout the study, children will attend regular cystic fibrosis clinic visits and any additional study appointments. Researchers will measure primary outcomes using metagenomic sequencing after six months on the diet, alongside secondary outcomes such as fecal calprotectin levels and gastrointestinal symptom scores. The study aims to understand the diet's impact on gut health, inflammation, and nutritional status over the six-month period.

CONDITIONS

Brief Title

Gastrointestinal Response of Pediatric Cystic Fibrosis Patients on Mediterranean Diet

Who Can Participate

Age: 3Years - 18Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Male and female pediatric patients with cystic fibrosis aged 3 years and older
  • Nutritional status with a BMI Z-score of at least -1 or above
  • Confirmed diagnosis of cystic fibrosis by two CF-causing genetic mutations or sweat chloride greater than 60 mEq/L
  • Children with pancreatic insufficient CF on pancreatic enzyme replacement therapy (PERT)
  • Children with pancreatic sufficient CF not on PERT
  • Child must be on a full, solids-based diet
  • Family willing to have child adhere to an exclusive Mediterranean diet for 6 months
  • Child must be able to attend regular CF clinic visits and any additional study visits if needed
Not Eligible

You will not qualify if you...

  • Children with malnutrition
  • Children requiring nutritional supplementation via any feeding tube
  • Children with poorly controlled CF lung disease
  • Children with advanced CF liver disease
  • Children with comorbid gastrointestinal diseases such as celiac disease, Crohn's disease, or other malabsorptive disorders
  • Children with significant food or gastrointestinal allergies
  • Family unwilling to adhere to the prescribed dietary intervention

AI-Screening

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Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Mediterranean Diet Intervention

Duration - 6 months

Participants follow an exclusive Mediterranean diet to assess its effects on gastrointestinal microbiome, inflammation, symptoms, and nutritional status.

Regular visits during routine CF clinic appointments with additional study visits as needed

Trial Site Locations

Total: 2 locations

1

Dartmouth Hitchcock Medical Center

Lebanon, New Hampshire, United States, 03756

Not Yet Recruiting

2

Dartmouth Health Children's

Manchester, New Hampshire, United States, 03104

Actively Recruiting

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Research Team

J

Julie L Sanville, MD

S

Sarah P Winslow, RN

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

SUPPORTIVE_CARE

Number of Arms

1

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