Nutritional Intervention and Glycemic Improvement in Patients With Pre-diabetic Cystic Fibrosis.

Study Overview
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Brief Summary
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Cystic fibrosis (CF) is a genetic disease with an autosomal recessive, chronic and progressive character about 10 to 25% of patients develop CF-related diabetes (DRFC). Until now, there is no evidence to support the use of low glycemic index diet to improve glycemic response in pre-diabetic and CF patients. The objective of this study is to evaluate the glycemic improvement after nutritional orientation in patients with cystic fibrosis.

Detailed Description
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Cystic fibrosis (CF) is a genetic disease with an autosomal recessive, chronic and progressive character. About 10 to 25% of patients develop CF-related diabetes (DRFC), whose pathogenesis is associated with pancreatic fibrosis and destruction. Until now, there is no evidence to support the use of low glycemic index diet to improve glycemic response in pre-diabetic and CF patients. The objective of this study is to evaluate the glycemic improvement after nutritional orientation in patients with cystic fibrosis in the pre-diabetic phase. Methods: Randomized clinical trial in patients with CF aged over 10 years without hospitalization in the last 4 weeks. Anthropometric measurements, blood pressure, 24 hour recall and food frequency questionnaire will be evaluated. Oral glucose tolerance and glycated hemoglobin test will be dosed at baseline and during 12 weeks of follow-up. The intervention group will receive a nutritional guidance at the beginning of the research.

Official Title
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Nutritional Intervention and Glycemic Improvement in Patients With Pre-diabetic Cystic Fibrosis.

Conditions
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Cystic Fibrosis-related Diabetes, Cystic Fibrosis

Intervention / Treatment
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* Dietary Supplement: Diet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: tolerance glucose test values between 100 and 125mg / dl and or glucose 2h after 75g of glucose between 140 and 199 mg / dl Stable pulmonary disease in the last four weeks Exclusion Criteria: Without hospitalization in the last 3 months

Ages Eligible for Study
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Minimum Age: 10 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Intervention group<br>Group that will be receive the diet | Dietary Supplement: Diet<br>* Nutrition booklet with guidelines on types of fats and glycemic index<br>|
| No Intervention: control<br>Group that will not receive the diet | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| glycemic improvement after nutritional orientation in patients with cystic fibrosis in the pre-diabetic phase | To evaluate the improvement of glucose levels after the diet intervention. After 12 weeks of intervention will be performed oral glucose tolerance test | 3 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Evaluate the levels of HbA1c before and after the intervention | Evaluate the levels of HbA1c before and after the intervention | 3 months | 
| Evaluate the response of forced expiratory volume and forced vital capacity before and after the intervention | Evaluate the response of FEV 1 (forced expiratory volume) before and after the intervention | 3 months | 
| To evaluate anthropometric data of the patients before and after the intervention. | Improvement of nutritional status Using weight (kg) and height (cm) and BMI. | 3 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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cystic fibrosis related diabetes