Dietary Sodium-Restriction (DIS) and Renal Meals (RM) for Hemodialysis (HD)(DISaRM-HD)

NCT ID: NCT04991441

Last Updated: 2021-08-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-01

Study Completion Date

2024-03-31

Brief Summary

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Chronic volume overload (VO) is a primary factor responsible for the excessive cardiovascular morbidity and mortality in hemodialysis (HD) patients. VO is caused in part by excessive fluid intake that is secondary to the consumption of a high salt diet. HD patients are often counselled to restrict their dietary sodium intake to help manage thirst and reduce their interdialytic weight gain (IDWG). However, data from recently published investigations demonstrate that dietary counseling alone may be ineffective. The objective of this randomized controlled trial is to determine if short-term feeding of low-sodium meals can "prime" changes in long-term nutrition behavior. It is hypothesized that feeding low-sodium meals for one month will significantly reduce IDWG and related outcomes, and continued dietary counseling and education support for 6 months will result in a sustained reduction in sodium intake upon patient resumption of meal responsibility. HD patients will be recruited and randomized to 2 groups: 1) Low-sodium meal feeding plus dietary counseling; or 2) a weight-list control group that will initially receive dietary counseling alone. IDWG will serve as the primary outcome with fluid volume overload, intradialytic hypotension, cramping, dietary sodium intake, sodium taste sensitivity and preference, and sodium self-efficacy evaluated at 1 and 6 months. This outcomes of this investigation will provide the first data on whether meal provision is an effective tool for dietary modeling and prolonged behavior change in HD patients.

Detailed Description

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Chronic kidney disease patients with end-stage renal disease require regular hemodialysis (HD) therapy 3-4 days per week to filter their blood of toxins/waste and to remove excess fluid. HD therapy is essential for survival in patients with kidney failure, but the dialysis process is inefficient and does not remove all of the fluid and waste products that accumulate in patients since their last treatment. The inefficiency of dialysis, coupled with excessive dietary sodium and fluid intakes, results in a high prevalence of chronic volume overload (VO) and VO dependent hypertension (HTN). Both VO \& HTN can have adverse effects on the heart and arteries, eventually lead to enlargement of the heart and cardiac dysfunction (1-3).

Dialysis care providers (doctors, dietitians, technicians) provide regular counseling for patients to reduce their dietary sodium and fluid intake, despite widespread non-adherence and the high prevalence of both VO and hypertension. Research interventions to increase dietary education and support behavior change have also demonstrated low efficacy in the dialysis patient population. Many barriers and factors contribute to excessive dietary sodium intakes and poor dietary adherence, thus is appears that current dietary education strategies may not be robust enough to change patient behaviors. However, a recent study in heart failure patients demonstrated that home-delivered meals represent a unique opportunity alter outpatient dietary practices. Patients with multiple comorbidities and numerous dietary behaviors, such as those on renal replacement therapy, may need additional support to establish and maintain dietary changes.

The purpose of this study is to compare dietary counseling with renal home meal delivery on clinical outcomes relating to both VO \& HTN. This trial is a comparative-effectiveness mixed-models design. In this study, patients will be randomized to one of two study arms: 1) CON (7 months total) where patients receive usual care (eating their normal diet) for the first 5 months of the study. This will be followed by a 2-month period where they will receive home-delivered meals and additional dietary counseling to reduce sodium intake; OR 2) INT (5 months total), where patients will receive home-delivered meals plus additional dietary counseling for the first 2 months of the study, followed by 3 months of continued counseling. During the home-meal delivery periods, participants will be provided a low-sodium/renal diet that includes receiving 2 meals per day during their 1st month, and 1 meal per day during the 2nd month (month 6 and 7 for CON; and month 1 and 2 for INT). The meals will be delivered to the participant's homes each week by momsmeals.com.

We are also plan to collect sensory taste data to characterize patients on dialysis preferences for salt. It is possible that a low sodium diet may change these preferences, so that patients desire more low-sodium tasting food. This information would allow us to analyze how dialysis patients salt intake is associate with taste preference with salt and how this relates to clinical outcomes. The study outcomes include: clinical outcomes (hospitalizations, treatment efficiency), cardiovascular measures (blood pressure, cardiac output, and vascular resistance) and fluid/hydration status (total body water, extracellular fluid) using bioelectrical impedance.

Conditions

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Kidney Failure, Chronic Dietary Modification

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Sequential Assignment Observational control followed by dietary intervention
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Control

Participants will follow their usual or normal diet for 5 months (CON) followed by an Controlled Dietary Sodium Restriction (INT) diet for 2 months. During the sodium restricted diet, participants will be provided with 2 meals and snacks daily, for 30 days (Month 5 - days 1-30) and 1 meal and snacks daily, for 30 days (Month 6 - days 31-60). These meals should meet the National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDQOI) guidelines for energy and protein (30-35 kcal/kg \& 1.2 g/kg) as well as low phosphorus, potassium, and sodium. The meals are formulated to less than 600-800 mg sodium each (\<2,000g/day) and will be ordered and delivered through momsmeals.com

Group Type EXPERIMENTAL

Controlled Dietary Sodium Restriction

Intervention Type DIETARY_SUPPLEMENT

Participants will be provided with 2 meals and snacks daily, for 30 days (days 1-30) and 1 meal and snacks daily, for 30 days (days 31-60). These meals should meet KDQOI guidelines for energy and protein (30-35 kcal/kg \& 1.2 g/kg) as well as low phosphorus, potassium, and sodium. The meals are formulated to less than 600-800 mg sodium each (\<2,000g/day) and will be ordered and delivered through momsmeals.com

Control Diet & Controlled Dietary Sodium Restriction

Intervention Type DIETARY_SUPPLEMENT

Participants will follow a Observational Control Diet (CON) diet (Months 1-5) followed by an Controlled Dietary Sodium Restriction (INT) diet (Months 6-7).

Intervention

Participants will be provided with 2 meals and snacks daily, for 30 days (days 1-30) and 1 meal and snacks daily, for 30 days (days 31-60). These meals should meet KDQOI guidelines for energy and protein (30-35 kcal/kg \& 1.2 g/kg) as well as low phosphorus, potassium, and sodium. The meals are formulated to less than 600-800 mg sodium each (\<2,000g/day) and will be ordered and delivered through momsmeals.com

Group Type EXPERIMENTAL

Control Diet & Controlled Dietary Sodium Restriction

Intervention Type DIETARY_SUPPLEMENT

Participants will follow a Observational Control Diet (CON) diet (Months 1-5) followed by an Controlled Dietary Sodium Restriction (INT) diet (Months 6-7).

Interventions

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Controlled Dietary Sodium Restriction

Participants will be provided with 2 meals and snacks daily, for 30 days (days 1-30) and 1 meal and snacks daily, for 30 days (days 31-60). These meals should meet KDQOI guidelines for energy and protein (30-35 kcal/kg \& 1.2 g/kg) as well as low phosphorus, potassium, and sodium. The meals are formulated to less than 600-800 mg sodium each (\<2,000g/day) and will be ordered and delivered through momsmeals.com

Intervention Type DIETARY_SUPPLEMENT

Control Diet & Controlled Dietary Sodium Restriction

Participants will follow a Observational Control Diet (CON) diet (Months 1-5) followed by an Controlled Dietary Sodium Restriction (INT) diet (Months 6-7).

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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INT CON

Eligibility Criteria

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Inclusion Criteria

1. Willingness to sign informed consent document and age 18 or greater.
2. High fluid gainer/excessive overloaded defined by: \> 3.0 % of estimated-dry weight (EDW)
3. No upper or lower limb amputations. This criteria is necessary because the BIS device we are using is not able to provide accurate estimates of fluid status in participants with limb amputations.
4. No pacemakers
5. Willingness to consume intervention meals provided throughout the study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Renal Research Institute

OTHER

Sponsor Role collaborator

University of Illinois at Urbana-Champaign

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kenneth R Wilund, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Illinois at Urbana-Champaign

Locations

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University of Illinois at Urbana-Champaign

Urbana, Illinois, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Alexis C King, MA

Role: CONTACT

2094185392

Luis M Perez, BS

Role: CONTACT

7192444805

Facility Contacts

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Kenneth R Wilund, PhD

Role: primary

217-265-6755

Alexis C King, MA

Role: backup

2094185392

Other Identifiers

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19507

Identifier Type: -

Identifier Source: org_study_id

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