Diabetes Mellitus Clinical Trial
— PLAFONDOfficial title:
Plant-Focused Nutrition in Patients With Diabetes and Chronic Kidney Disease (PLAFOND Study): A Pilot/Feasibility Study
In this pilot clinical trial, the investigators will recruit and randomize 120 patients with diabetes mellitus and chronic kidney disease (CKD/DM) stages 3 to 5 to a patient-centered and flexible Plant-Focused Nutrition in Diabetes (PLAFOND) diet with >2/3 plant-based sources, which will be compared with a standard-of-care CKD diet, which is usually a low-potassium and low-salt diet, over a 6-month period. Through this study, the investigators will determine whether the plant-focused diet intervention is feasible for patient adherence, whether this diet is safe by avoiding malnutrition, frailty, and high potassium or glucose blood levels, and whether patient reported outcomes are favorably impacted.
Status | Not yet recruiting |
Enrollment | 120 |
Est. completion date | September 30, 2026 |
Est. primary completion date | March 30, 2026 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Adult outpatient (>18 years old) with diabetes mellitus (DM), who attends ambulatory clinics in one of the two centers, who has the established diagnosis of stage 3-5 CKD and DM regardless of degree of proteinuria, and who wishes to prevent or delay dialysis initiation, is qualified, as long as there are at least 2 eGFRs <60 ml/min/1.73m2 three months apart with no intervening higher eGFR values. - Participants will agree to follow the dietary instructions based on the randomization assignment and attend baseline visits as well as three additional ambulatory visits on Month 1, 3 and 6 post-randomization in person or via telehealth and respond to monthly or more frequent phone calls. Exclusion Criteria: - Having a terminal illness with a life expectancy <6 months such as stage 4 metastatic cancer. - Patients with any serum potassium >5.5 mEq/L during the 6 months preceding the screening visit. |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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University of California, Irvine | VA Long Beach Healthcare System |
Kalantar-Zadeh K, Fouque D. Nutritional Management of Chronic Kidney Disease. N Engl J Med. 2017 Nov 2;377(18):1765-1776. doi: 10.1056/NEJMra1700312. No abstract available. — View Citation
Kalantar-Zadeh K, Jafar TH, Nitsch D, Neuen BL, Perkovic V. Chronic kidney disease. Lancet. 2021 Aug 28;398(10302):786-802. doi: 10.1016/S0140-6736(21)00519-5. Epub 2021 Jun 24. — View Citation
Kalantar-Zadeh K, Joshi S, Schlueter R, Cooke J, Brown-Tortorici A, Donnelly M, Schulman S, Lau WL, Rhee CM, Streja E, Tantisattamo E, Ferrey AJ, Hanna R, Chen JLT, Malik S, Nguyen DV, Crowley ST, Kovesdy CP. Plant-Dominant Low-Protein Diet for Conservative Management of Chronic Kidney Disease. Nutrients. 2020 Jun 29;12(7):1931. doi: 10.3390/nu12071931. — View Citation
Kalantar-Zadeh K, Mattix-Kramer HJ, Moore LW. Culinary Medicine as a Core Component of the Medical Nutrition Therapy for Kidney Health and Disease. J Ren Nutr. 2021 Jan;31(1):1-4. doi: 10.1053/j.jrn.2020.11.002. No abstract available. — View Citation
Kalantar-Zadeh K, Rhee CM, Joshi S, Brown-Tortorici A, Kramer HM. Medical nutrition therapy using plant-focused low-protein meal plans for management of chronic kidney disease in diabetes. Curr Opin Nephrol Hypertens. 2022 Jan 1;31(1):26-35. doi: 10.1097/MNH.0000000000000761. — View Citation
Kalantar-Zadeh K, Saville J, Moore LW. Unleashing the Power of Renal Nutrition in Value-Based Models of Kidney Care Choices: Leveraging Dietitians' Expertise and Medical Nutrition Therapy to Delay Dialysis Initiation. J Ren Nutr. 2022 Jul;32(4):367-370. doi: 10.1053/j.jrn.2022.05.001. Epub 2022 May 16. No abstract available. — View Citation
Kistler BM, Moore LW, Benner D, Biruete A, Boaz M, Brunori G, Chen J, Drechsler C, Guebre-Egziabher F, Hensley MK, Iseki K, Kovesdy CP, Kuhlmann MK, Saxena A, Wee PT, Brown-Tortorici A, Garibotto G, Price SR, Yee-Moon Wang A, Kalantar-Zadeh K. The International Society of Renal Nutrition and Metabolism Commentary on the National Kidney Foundation and Academy of Nutrition and Dietetics KDOQI Clinical Practice Guideline for Nutrition in Chronic Kidney Disease. J Ren Nutr. 2021 Mar;31(2):116-120.e1. doi: 10.1053/j.jrn.2020.05.002. Epub 2020 Jul 29. — View Citation
Rhee CM, Kalantar-Zadeh K, Moore LW. Medical Nutrition Therapy for Diabetic Kidney Disease. J Ren Nutr. 2021 May;31(3):229-232. doi: 10.1053/j.jrn.2021.03.004. No abstract available. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Dietary adherence to PLAFOND vs. standard-of-care renal diet assessed by diet diaries | Dietary Adherence including separation in dietary plant-based proportions of >2/3 vs <1/3 at 3- and 6-months will be ascertained by 3-day diet diaries in all 120 participants as the primary outcome. | 6 months | |
Secondary | Dietary adherence to PLAFOND vs. standard-of-care low-potassium renal diet assessed by 24-hour urine collections | Dietary Adherence and separation in dietary components of PLAFOND (plant-based proportions of protein >2/3) vs. low-potassium renal diet (<1/3 plant-based protein) at 3- and 6-months ascertained by and 24-hour urine collections (secondary outcome) | 6 months | |
Secondary | Physical function measured by Short Physical Performance Battery (SPPB) | Under "Nutritional and Physical Performance and Body Composition" physical function will be measured by Short Physical Performance Battery (SPPB), a value between 0 to 12 (higher suggesting more frail phenotype), at baseline, 3-, and 6-months. | 6 months | |
Secondary | Physical function measured by Fried Frailty Index | Under "Nutritional and Physical Performance and Body Composition" physical function will be measured by Fried Frailty Index, a score between 0 and 5, devided into ranking categories of non-frail (score 0), pre-frail (score 1-2) and frail (score 3-5), measured at baseline, 3-, and 6-months. | 6 months | |
Secondary | Muscle strength measured by handgrip strength | Under the "Nutritional and Physical Performance and Body Composition", muscle strength will be measured by handgrip strength using dynamometer, scored using force production in kilograms (0-90), at baseline, 3-, and 6-months. | 6 months | |
Secondary | Body composition using caliper anthropometry to measure mid-arm muscle circumference (MAMC) | Under "Nutritional and Physical Performance and Body Composition", body composition will be assessed using caliper anthropometry to measure mid-arm muscle circumference (MAMC) in cm (<12.5 cm as malnutrition), at baseline, 3-, and 6-months. | 6 months | |
Secondary | Body composition using near-infrared interactance | Under "Nutritional and Physical Performance and Body Composition", body composition will be assessed using caliper anthropometry and near-infrared interactance, producing percentage of body fat (unit: %), at baseline, 3-, and 6-months. | 6 months | |
Secondary | Biochemical parameter: serum A1c | Under "Glycemic, Renal and Safety Endpoints", biochemical parameter hemoglobin A1c, a value in percentage (normal rnage <5.5%), will be measured at baseline, and 1-, 3- and 6-months in all 120 participants | 6 months | |
Secondary | Biochemical parameter: serum potassium | Under "Glycemic, Renal and Safety Endpoints", biochemical parameter serum potassium, a valie in mEq/L (normal range: 3.5-5.3 mEq/L), will be measured at baseline, and 1-, 3- and 6-months in all 120 participants | 6 months | |
Secondary | Biochemical parameter: serum Cystatin C | Under "Glycemic, Renal and Safety Endpoints", biochemical parameter serum Cystatin C (mg/L) will be measured at baseline, and 1-, 3- and 6-months in all 120 participants | 6 months | |
Secondary | Biochemical parameter: urinary albumin to creatinine ratio (ACR) | Under "Glycemic, Renal and Safety Endpoints", biochemical parameters including hemoglobin A1c, potassium, and Cystatin C and albumin to creatinine ratio (ACR) in mg/g will be measured at baseline, and 1-, 3- and 6-months in all 120 participants | 6 months | |
Secondary | Glycemic status by continuous glucose monitoring (GCM) | Under "Glycemic Endpoints", glycemic status ascertained by continuous glucose monitoring (CGM) via DEXCOM will be examined in a substudy of 50 patients at baseline and at 6-months. | 6 months |
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