Home-Based Kidney Care in Native American's of New Mexico (HBKC)

Not Applicable

Completed

Conditions: Chronic Kidney Diseases

Interventions: Behavioral: Home-Based Kidney Care

Registration Number: NCT03179085

Lead Sponsor: University of New Mexico

Brief Summary: People reach End Stage Renal Disease (ESRD) due to progressive chronic kidney disease (CKD). CKD is associated with increased risk for heart disease and death. The burden of chronic kidney disease is increased among minority populations compared to Caucasians. New Mexico American Indians are experiencing an epidemic of chronic kidney disease due primarily to the high rates of obesity and diabetes. The present study entitled Home-Based Kidney Care is designed to delay / reduce rates of ESRD by early interventions in CKD. Investigators propose to assess the safety and efficacy of conducting a full-scale study to determine if home based care delivered by a collaborative team composed of community health workers, the Albuquerque Area Indian Health Board and University of New Mexico faculty will decrease the risk for the development and the progression of CKD.

Detailed Description: Hypothesis:

Specific Aim 1: Screen 600 participants from four different American Indian tribes in New Mexico to identify incident cases of CKD and identify participants for the proposed study of HBKC;

Specific Aim 2: Conduct a 12 month study of HBKC among 240 Native Americans randomized in a 1:1 allocation to HBKC group versus Delayed Intervention (DI) group to demonstrate improvement in Patient Activation Measures (PAM) and adherence to treatment. We will demonstrate that CKD clinical risk profiles will improve with HBKC as compared to DI at 12 months and 4 months post intervention (16 months);

Specific Aim 3: To demonstrate that HBKC will improve psychological factors that map onto important cultural variations in treatment efficacy and health outcomes. Specifically, we will show improvement in potential mediators (treatment engagement, self-efficacy, coping and increased knowledge) and moderators (stigma, and chronic stress, and depression) of health disparity and outcome.

Study Outcomes: (1) The patient activation measures and adherence; (2) Changes in clinical phenotypes including Cr, UACR, A1c, body weight, BMI, fasting glucose, blood pressure (BP), plasma lipids, and inflammatory markers; (3) Changes in the quantitative traits such as diet and scores from a battery of mental-health, self-efficacy, and quality of life instruments.

Health Impact: The active participation of New Mexico tribal leadership and the Albuquerque Area Indian Health Board, as well as the accessibility to native CHR personnel, render the outcomes that will be demonstrated by this proposal easily sustainable over the long term. If successful, this program has the potential to change best-practices for CKD progression and to reduce health disparities in a cost-effective and sustainable manner.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 529

Inclusion Criteria

(1) live in a household with 1 participant
(2) age 21 to 80 years
(3) negative pregnancy test in women of child-bearing potential
(4) diagnosed diabetics or HbA1c >7
(5) BMI >27 kg/m2 and UACR of >/= 30

Exclusion Criteria

(1) life expectancy < 1 year
(2) pregnancy or absence of reliable birth control in women of child-bearing potential
(3) malignancy except non-melanoma skin cancer
(4) blind
(5) ESRD and on dialysis
(6) kidney transplant recipient
(7) unwilling or unable to give informed consent.

Study & Design

Study Type: INTERVENTIONAL

Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
Usual Care / Delayed Intervention	Home-Based Kidney Care	Participants randomized to the control group will receive usual care by their provider for 12 months. They will also attend one group class taught by CHRs in which they will learn basic information about diabetes prevention. DI participants will receive publicly-available literature that reinforces the information given in class, and they will have no other contact with study staff aside from during study data collection visits at baseline and 12 months. After 12 months of usual care, patients will enter into the delayed intervention where they will complete 12 months of Home-Based Kidney Care (HBKC).
Home-Based Kidney Care Intervention	Home-Based Kidney Care	All subjects randomized to the HBKC arm will be visited by a CHR in their home at least every two weeks for the duration of the 12 month intervention. Each visit will last 30 minutes to one hour and participant preference will be incorporated into the HBKC intervention arm by allowing participants to prioritize the order in which curriculum topic areas will be emphasized by the CHRs. Topics from currently available NIDDK and IHS kidney education materials will include: (1) Kidney 101, (2) weight management, (3) exercise, (4) healthy eating, (5) medication management, (6) coping with stress, (7) risk factor management (i.e.- blood pressure, hyperlipidemia), (8) alcohol and substance abuse, (9) smoking cessation, and related health concerns.

Primary Outcome Measures

Name	Time	Method
The Patient Activation Measure (PAM)	Baseline, 6 and 12 months	Assesses an individual's knowledge, skill, and confidence for managing one's health and healthcare. PAM total scores have a theoretical range from 0 to 100, with higher scores representing greater patient activation.

Secondary Outcome Measures

Name	Time	Method
HbA1c	Baseline. Change from baseline at 6 and 12 months	Hemoglobin A1C measured as percent of glycosylated high hemoglobin cells
Blood Glucose Levels	Baseline. Change from baseline at 6 and 12 months	amount of glucose in the blood measured as mg/dL - milligrams per deciliter
HDL	Baseline. Change from baseline at 6 and 12 months	High density lipoprotein as mg/dL - milligrams per deciliter
LDL	Baseline. Change from baseline at 6 and 12 months	Low density lipoprotein as mg/dL - milligrams per deciliter
Creatinine	Baseline. Change from baseline at 6 and 12 months	Serum creatinine measured as mg/dL - milligrams per deciliter
SF12 Physical	Baseline. Change from baseline at 6 and 12 months	KDQOL Short Form 12 (SF12) Physical functioning T score: normal mean=50, normal standard deviation=10. Higher values is higher quality of life.
SF12 Mental	Baseline. Change from baseline at 6 and 12 months	KDQOL Short Form 12 (SF12) Mental functioning T score: normal mean=50, normal standard deviation=10. Higher values is higher quality of life.