- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07587918
Sweet & Sour: Dietary Acid Load in Type 2 Diabetes and Kidney Disease Across Sex and Ethnic Groups (Sweet & Sour)
Sweet & Sour: Exploring Dietary Acid Load in Type 2 Diabetes & Kidney Disease Across Sex and Ethnicity
Chronic kidney disease (CKD) is a common condition and a major global cause of illness and mortality. The most common cause of kidney damage is diabetes, a condition that disrupts metabolism, leading to increased risk of damage to the kidneys and blood vessels. There is evidence suggesting that a diet with high acid load - consisting of acid-forming foods such as meat, cheese, and grain products - may contribute to this damage. People with such a diet often have poorer blood sugar control and more kidney damage. However, it is not yet well understood whether reducing dietary acid load can improve kidney function and diabetes management. Additionally, the role of ethnicity and sex in this process remains insufficiently explored.
The goal of this clinical trial is to understand how diet affects kidney function and blood sugar regulation in individuals with diabetes type 2 and chronic kidney disease, as well as to explore the role of sex and ethnicity in these effects. The main questions it aims to answer are:
Does a diet with lower acid load (e.g. less meat, cheese, and grain products) improve kidney function and blood sugar regulation in people with diabetes type 2 and chronic kidney disease?
Does the effect of diet on kidney function and blood sugar differ between ethnic groups, specifically between White-Dutch and South-Asian Surinamese descent people?
Participants will:
- be randomly assigned to follow either a high- or low-acid load diet for 8 weeks;
- Visit the study center four times (including screening)
- Complete food diaries three times per week and keep in regular contact with a dietitian;
- Collect 2x24-hour urine samples and morning feces at each visit ;
- Undergo blood sampling and an oral glucose tolerance test (OGTT).
- Spend a total of 8 hours at the study center (2 visits of 3 hours for OGTT and body composition tests, and 2 visits of 1 hour for additional assessments);
- Have up to 200 ml of blood collected during the study.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Ilias Attaye, Dr.
- Número de teléfono: +31 10 704 0704
- Correo electrónico: i.attaye@erasmusmc.nl
Ubicaciones de estudio
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Rotterdam, Países Bajos
- Erasmus Medical Center
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Contacto:
- Ilias Attaye, Dr.
- Número de teléfono: +31 10 704 0704
- Correo electrónico: i.attaye@erasmusmc.nl
-
Investigador principal:
- Ilias Attaye, Dr.
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Sub-Investigador:
- Dagmar Dekker, MSc
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Age >18 years
- Presence of T2D and CKD stage G1-3a with albuminuria (>10mg/mmol)
- BMI≥ 25kg/m2 - Use of metformin on a stable dose (i.e. no changes in the last three months)
- Adequate knowledge of the Dutch language to comprehend the provided study information
- If incretin therapy is used, then subject must have used that for a minimum of 6 months before starting with the trial
- Use of ACE inhibitors or angiotensin II receptor blokkers
- Of white European Dutch or South-Asian Surinamese descent
Exclusion Criteria:
- Use of insulin
- serum bicarbonate < 20 mmol/L
- Use of antibiotics 3 months before inclusion
- Vegetarian diet - Presence of inflammatory bowel disease or other chronic inflammatory disease
- Alcohol consumption of more than 14 units per week in women, or more than 21 units per week in men
- Active malignancy - bariatric or other weight loss surgery in the history
- patients diagnosed with eating disorders (such as bulimia nervosa, anorexia nervosa or binge-eating disorder)
- HbA1c >9% (75mmol/mol) at screening
- Unmotivated or not able to adhere to a specific diet
- The subject is already currently involved in a clinical trial
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Sin intervención: High Dietary Acid Load
This arm will follow their usual diet, which is between DAL> 50 or <120mEq H⁺/day (current western diets are generally all high DAL)
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Experimental: Low Dietary Acid Load
This arm will follow a DAL lowering diet with the aim to reach <25mEq H⁺/day
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This arm will follow a DAL lowering diet with the aim to reach <25mEq H⁺/day
Otros nombres:
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Percentage change in urinary albumin-to-creatinine ratio (UACR)
Periodo de tiempo: Change between baseline and 8 weeks
|
Log-transformed urinary albumin-to-creatinine ratio (UACR), following an 8-week dietary intervention.
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Change between baseline and 8 weeks
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in estimated glomerular filtration rate (eGFR)
Periodo de tiempo: Change between baseline and 8 weeks
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eGFR calculated using serum creatinine and/or cystatin C
|
Change between baseline and 8 weeks
|
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Change in serum bicarbonate
Periodo de tiempo: Change between baseline and 8 weeks
|
Serum bicarbonate concentration measured in blood
|
Change between baseline and 8 weeks
|
|
Change in urinary citrate
Periodo de tiempo: Change between baseline and 8 weeks
|
Urinary citrate excretion measured in 24-hour urine collections
|
Change between baseline and 8 weeks
|
|
Glucose response during Oral Glucose Tolerance Test
Periodo de tiempo: Change between baseline and 8 weeks
|
Area under the curve (AUC) of plasma glucose during oral glucose tolerance test (OGTT)
|
Change between baseline and 8 weeks
|
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Change in glucose variability (MAGE)
Periodo de tiempo: Change between baseline and 8 weeks
|
Mean amplitude of glycemic excursions (MAGE) derived from continuous glucose monitoring (CGM) data.
|
Change between baseline and 8 weeks
|
|
Change in gut microbiota composition
Periodo de tiempo: Change between baseline and 8 weeks
|
Gut microbiota composition assessed in morning fecal samples collected using stool collection kits analyzed by 16S rRNA gene sequencing.
|
Change between baseline and 8 weeks
|
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Change in serum metabolite profiles
Periodo de tiempo: Change between baseline and 8 weeks
|
Serum metabolite profiles measured using untargeted metabolomics analysis.
|
Change between baseline and 8 weeks
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Ilias Attaye, Dr., Erasmus Medical Center
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Enfermedades urogenitales
- Enfermedades del sistema endocrino
- Procesos Patológicos
- Enfermedades urogenitales masculinas
- Enfermedades Renales
- Enfermedades urológicas
- Enfermedades urogenitales femeninas
- Enfermedades urogenitales femeninas y complicaciones del embarazo
- Enfermedad crónica
- Atributos de la enfermedad
- Enfermedades metabólicas
- Trastornos del metabolismo de la glucosa
- Diabetes mellitus
- Insuficiencia renal
- Condiciones Patológicas, Signos y Síntomas
- Enfermedades Nutricionales y Metabólicas
- Diabetes Mellitus, Tipo 2
- Insuficiencia Renal Crónica
Otros números de identificación del estudio
- NL-010928
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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