Di-PKD: A Pilot Trial of Dietary Intervention in Patients With Autosomal Dominant Polycystic Kidney Disease

Study Purpose

The goal of this interventional study is to evaluate the impact of a specific diet (low salt, limited caffeine, high potassium, low phosphate, limited protein, limited carbohydrate intake, adequate water intake) on changes in serum and urinary biomarkers, total kidney volume (TKV), and cyst progression in subjects with autosomal dominant polycystic kidney disease (ADPKD). Researchers will compare the results of subjects in the study diet (interventional) arm to the results of subjects in the regular diet (control) arm.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 18 Years - 65 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Confirmed diagnosis of ADPKD.
  • - Genetic testing confirmation of PKD1 or PKD2.
  • - eGFR >30mL/1.73m2.
  • - Willingness to adhere to a preconditioning diet for 1 week and ability to complete the study.
  • - Mayo Clinic Imaging Classification (MCIC): 1C, 1D, 1E.

Exclusion Criteria:

  • - History of dietary non-adherence.
  • - Subjects on Tolvaptan.
- Comorbidities that could interfere with participation (Diabetes, Heart Failure (EF<30%) Advanced Chronic Kidney Disease (CKD) Stage 4 and higher)

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT06786260
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

N/A
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Loma Linda University
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Amir Abdipour, MD
Principal Investigator Affiliation Loma Linda University Health
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other
Overall Status Not yet recruiting
Countries United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Autosomal Dominant Polycystic Kidney Disease (ADPKD)
Additional Details

15 subjects will be enrolled in each dietary arm for a total of 30 subjects. All subjects will follow the study diet for one week, after which serum and urinary biomarkers will be measured. A baseline evaluation, including genetic testing, MRI, Mayo Clinic Imaging Classification and 10-question survey will also be conducted. After Week 1 of the study, subjects will be assigned to the intervention or control arm. Subjects will have six follow-up visits at months 1, 2, 3, 6, 9 and 12 to assess adherence to diet. Serum and urinary biomarkers will be repeated at each visit. MRI will be repeated at Month 12.

Arms & Interventions

Arms

Experimental: Interventional Diet

Subjects will follow a specified diet (low salt, limited caffeine, high potassium, low phosphate, and limited protein and carbohydrate intake along with adequate water intake) after 1 week of preconditioning for 12 months.

No Intervention: Regular Diet

Subjects will follow the diet they normally adhere to after 1 week of preconditioning.

Interventions

Other: - Interventional Diet

Low salt, limited caffeine, high potassium, low phosphate, and limited protein and carbohydrate intake along with adequate water intake diet

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Loma Linda University Health, Loma Linda, California

Status

Address

Loma Linda University Health

Loma Linda, California, 92354

Site Contact

Amir Abdipour, MD

[email protected]

909-202-0252