Effect of Plant-Focused Diet on Nutritional Status of Malnourished Patients Undergoing Peritoneal Dialysis in a Selected Hospital Care Setting
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Changes in Dietary Adequacy
研究概览
简要总结
The goal of this clinical trial is to determine whether a plant-focused diet improves nutritional and health outcomes of malnourished adults undergoing peritoneal dialysis (PD). It will also learn about the safety of this diet in this population.
The main questions it aims to answer are:
- Does a plant-focused diet improve nutritional status compared to a standard kidney diet in PD patients?
- What changes occur in anthropometric, biochemical, and dietary measures over 6 months?
Researchers will compare the plant-focused diet to a standard-of-care renal diet to see which is more effective in improving nutrition in PD patients.
Participants will:
- Be randomly assigned to follow the plant-focused diet or the standard diet.
- Be monitored for 6 months through in-person visits (aligned with their routine clinic appointments) and virtual check-ins via messages or calls.
- Have their progress monitored for changes in outcomes such as nutrition, blood tests, kidney function, and quality of life.
详细描述
End-stage renal disease (ESRD) is a growing health concern in Malaysia, with a significant increase in the proportion of patients receiving peritoneal dialysis (PD) from 13.0% in 2014 to 18% in 2023. While PD offers certain clinical advantages, it is associated with common complications such as malnutrition and protein-energy wasting (PEW), which contribute to poor patient outcomes.
Emerging evidence suggests that plant-focused diets may have beneficial effects on nutritional status, inflammation, and metabolic complications in PD patients. However, data on their safety, efficacy, and long-term impact in this population remain limited. Hence, this study aims to address this research gap.
This study is a randomized, open-label clinical trial that will compare the effects of a plant-focused diet to a standard-of-care renal diet in malnourished PD patients over a 6-month period.
Participants will be recruited from Hospital Canselor Tuanku Muhriz (HCTM) UKM and randomized into two groups. Both groups will receive individualised dietary counselling and will be followed-up according to their assigned diet plan. Monitoring will occur through physical visits aligned with routine clinic visits, and through virtual check-ins (messages or phone calls). Key outcomes will be measured at baseline, 3 months, and 6 months.
The objectives of this study is:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult outpatients (>18 years old), attending HTCM PD clinic visits
- •Have undergone peritoneal dialysis for at least 6 months
- •Have a serum albumin level <40 g/L
- •Have a BMI of < 25 kg/m2
- •Have a malnutrition inflammation score (MIS) of mild, moderate or severe
- •Agreed to follow the dietary instructions based on the randomization assignment
- •Agreed to attend baseline visits and additional follow-up appointments at months 1, 3, and 6 post- randomization, either in person or via telehealth, and respond to monthly or more frequent phone calls
排除标准
- •Have been hospitalized for the past 3 months
- •Have ongoing infection/sepsis
- •Has undergone surgery in the past 6 months
- •Have high inflammatory diseases, malignancy, or cancer
- •Have dialysis adequacy of <1.2 Kt/V
研究组 & 干预措施
Plant-Focused Diet
Participants will receive individualised diet counselling and sample meal plans emphasizing plant-based protein sources while meeting recommended protein and energy requirements for peritoneal dialysis patients. Patients in this group will be required to consume plant-focused meals for the majority of their daily meals. For example, those consuming 3 meals per day must ensure that at least 2 out of the 3 meals are plant-based, while those consuming 4 meals per day must ensure that at least 3 out of the 4 meals are plant-based. The remaining meal or snack may include either plant- or animal-based foods to support flexibility and adherence. The diet will be tailored to each patient's nutritional status and dialysis prescription, with monthly follow-ups from a dietitian to monitor adherence and provide adjustments as needed.
干预措施: Plant-Focused Diet Counselling (Behavioral)
Standard-of-Care Renal Diet
Participants will receive the current standard-of-care renal diet for peritoneal dialysis patients and be encouraged to maintain their usual dietary and physical activity patterns, with guidance to ensure that at least 50% of their total protein intake comes from high biological value (HBV) animal-based sources. The diet will be tailored to each patient's nutritional status and dialysis prescription, with monthly follow-ups from a dietitian to monitor adherence and provide adjustments as needed.
干预措施: Standard Renal Diet Counselling (Behavioral)
结局指标
主要结局
Changes in Dietary Adequacy
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention
Dietary intake collected from analysis of 3-day dietary recalls (2 weekdays, 1 weekend), using Nutritionist Pro software. Dietary adequacy is assessed based on the comparison of each participant's macro- and micro-nutrient intakes against their estimated nutrient requirements. A deviation of more than 20% from the requirement will be classified as dietary inadequacy. Data will be summarised as percentage of participants meeting vs. not meeting adequacy.
Changes in Dialysis Adequacy
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
Dialysis adequacy will be assessed using weekly Kt/V (urea), obtained from patients' medical records. A total Kt/V \< 1.7 will be considered indicative of inadequate dialysis.
Changes in Concentration of Urea
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in mmol/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Creatinine
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in µmol/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Sodium
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in mmol/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Potassium
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in mmol/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Phosphate
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in mmol/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Serum Albumin
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in g/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
Changes in Concentration of Total Protein
时间窗: At baseline, after 3 months of intervention, and after 6 months of intervention.
A renal function parameter, measured in g/L, obtained from medical records. Results will be compared against standard laboratory reference ranges.
次要结局
- Changes in Weight(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Height(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Body mass index (BMI)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Triceps skinfold (TSF)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Dietary Adherence/Compliance(Baseline and monthly, for up to 6 months.)
- Changes in Malnutrition-Inflammation Score (MIS)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Appetite and Food Satisfaction (AFSQ)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Quality of life (WHOQOL-BREF)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Physical Function (SPPB)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Physical Activity Levels (IPAQ-SF)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Retention Rate(End of study (after 6 months of intervention).)
- Mid-upper arm circumference (MUAC)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Mid-arm muscle circumference (MAMC)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Total cholesterol(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Triglycerides(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in High-density lipoprotein cholesterol (HDL-C)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Low-density lipoprotein cholesterol (LDL-C)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Glycated haemoglobin (HbA1c)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Fasting Blood Glucose (FBG)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Serum Total Iron Binding Capacity (TIBC)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Serum High-sensitivity C-reactive protein (hsCRP)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Changes in Normalised protein catabolic rate (nPCR)(At baseline, after 3 months of intervention, and after 6 months of intervention.)
- Dietary Knowledge, Attitude, and Practice (KAP) Questionnaire(At baseline.)
- Changes in body fat percentage (%)(At baseline, 3 months, and 6 months.)
- Changes in Fat-free mass (kg)(At baseline, 3 months, and 6 months.)
- Changes in skeletal muscle mass (kg)(At baseline, 3 months, and 6 months.)
- Changes in fat mass (kg)(At baseline, 3 months, and 6 months.)
研究者
Harvinder Kaur A/P Gilcharan Singh
Principal Investigator
National University of Malaysia
