UrApp for Childhood Nephrotic Syndrome Management (Incident Cohort)

NCT ID: NCT04075656

Last Updated: 2025-11-06

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 58 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-09-17
• Study Completion Date: 2025-04-25

Brief Summary

Idiopathic nephrotic syndrome is one of the most common chronic kidney diseases in children. Patients suffer from frequent disease relapses and complications. Self-management is difficult for families and nonadherence is common, with adverse effects on the children's health. UrApp is a mobile application designed to assist families with nephrotic syndrome management. This study will examine whether providing the children's caregivers (or adolescent patients) with UrApp improves self-management and disease outcomes. This study will include 60 caregivers of children with newly diagnosed nephrotic syndrome. Participants will be randomized 1:1 to UrApp or standard of care and followed for 1 year.

Detailed Description

Idiopathic nephrotic syndrome (NS) is one of the most common chronic kidney diseases in children, with a prevalence of approximately 16 cases per 100,000 children. NS is characterized by heavy urinary losses of protein leading to hypoalbuminemia, edema, and hyperlipidemia. Children are treated with high-dose corticosteroids on presentation, and >80% respond to treatment with resolution of proteinuria and symptoms. However, 80-90% of the children initially sensitive to corticosteroids will experience disease relapse, with more than half relapsing frequently or becoming dependent on corticosteroids to maintain remission. During a relapse, patients can suffer from anasarca, acute kidney injury, serious infections, or thromboembolic events.

Management of children with NS entails long-term outpatient surveillance and treatment. Home care includes the important standard-of-care task of urine monitoring to follow the relapsing-remitting nature of the disease. New proteinuria signals disease relapse before the development of overt symptoms such as edema. Thus, patients are instructed to alert their providers to the occurrence of proteinuria in a timely manner so that corticosteroids can be initiated or adjusted to treat each relapse and prevent acute disease complications. It is also important for the patients to track urine protein for resolution so that corticosteroids can be stopped or reduced to minimize steroid toxicity.

Not unlike other chronic, relapsing-remitting pediatric disorders, self-management is difficult for NS patients and their caregivers. Mobile health (mHealth) is a promising, rapidly growing field in disease management. In NS, there are numerous aspects of self-management that may be facilitated by a mobile app. First, the visual analysis of a urine test strip is subject to human error, including reading the wrong reagent block and erroneous assessments of color. This can be improved through using a smartphone's camera and computer to read and analyze test strip results. Second, caregivers must remember to check their child's urine, recall results, and understand what the results mean: the demands are taxing in that disease relapse is defined as urine protein ≥2+ for 3 consecutive days and remission is defined as negative/trace urine protein for 3 consecutive days. Apps, with their inherent interactivity, can provide reminders for urine testing, capture the results, and analyze trends to detect disease relapse/remission. Apps can alert a caregiver to seek medical attention and directly transmit test results to providers. Lastly, apps can provide medication reminders for NS patients, who are on highly complex medication regimens.

UrApp was iteratively developed by an expert panel of two pediatric nephrologists and three research engineers with expertise in human-computer interaction. App features were devised by the clinicians to support elements of chronic care management according to the Chronic Care Model and tasks that are challenging for caregivers. This study will include 60 caregivers of children with newly diagnosed nephrotic syndrome. Participants will be randomized 1:1 to UrApp or standard of care and followed for 1 year. In addition to the study outcome measures, user feedback will be collected via survey, interview, and by stakeholder meetings to inform app refinement.

Conditions

Idiopathic Nephrotic Syndrome

Keywords

Pediatrics; mHealth; Behavioral intervention

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: NONE

Study Groups

UrApp

Participants randomized to this study arm will use the UrApp mobile application for one year, in addition to receiving the standard of care.

Group Type: EXPERIMENTAL

Standard of Care

Intervention Type: BEHAVIORAL

Participants will be provided a folder of educational material on NS, including general information on symptoms, treatments, and possible complications; healthy diet for children taking corticosteroids; and low sodium diet. Site research staff will demonstrate how to check urine for protein with test strips, and educate patients on the definitions of disease relapse and remission. Urine test strips and urine protein logs will be provided to ensure that each participant can check their urine daily for protein. Participants will be instructed to check their urine daily for protein and call their provider within 1 business day for relapses and remissions.

UrApp

Intervention Type: BEHAVIORAL

Caregivers/parents will download UrApp at the baseline visit. UrApp contains instructional videos to guide users. The telephone number of the patient's provider will be entered into UrApp and participants will be able to call their providers directly through UrApp. The email address of the Emory study staff will also be entered. UrApp will automatically e-mail test results to the research staff when elected by the users. Participants will be asked by study staff, and reminded by the app, to call their providers and send urine testing results to the study staff whenever there is a relapse or remission. When the study staff receives alerts of a relapse/remission via UrApp, the information will be communicated to the treating physician within 1 business day.

Standard of Care

Participants randomized to this study arm will use receive the standard of care for one year.

Group Type: ACTIVE_COMPARATOR

Standard of Care

Intervention Type: BEHAVIORAL

Participants will be provided a folder of educational material on NS, including general information on symptoms, treatments, and possible complications; healthy diet for children taking corticosteroids; and low sodium diet. Site research staff will demonstrate how to check urine for protein with test strips, and educate patients on the definitions of disease relapse and remission. Urine test strips and urine protein logs will be provided to ensure that each participant can check their urine daily for protein. Participants will be instructed to check their urine daily for protein and call their provider within 1 business day for relapses and remissions.

Interventions

Standard of Care

Participants will be provided a folder of educational material on NS, including general information on symptoms, treatments, and possible complications; healthy diet for children taking corticosteroids; and low sodium diet. Site research staff will demonstrate how to check urine for protein with test strips, and educate patients on the definitions of disease relapse and remission. Urine test strips and urine protein logs will be provided to ensure that each participant can check their urine daily for protein. Participants will be instructed to check their urine daily for protein and call their provider within 1 business day for relapses and remissions.

Intervention Type: BEHAVIORAL

UrApp

Caregivers/parents will download UrApp at the baseline visit. UrApp contains instructional videos to guide users. The telephone number of the patient's provider will be entered into UrApp and participants will be able to call their providers directly through UrApp. The email address of the Emory study staff will also be entered. UrApp will automatically e-mail test results to the research staff when elected by the users. Participants will be asked by study staff, and reminded by the app, to call their providers and send urine testing results to the study staff whenever there is a relapse or remission. When the study staff receives alerts of a relapse/remission via UrApp, the information will be communicated to the treating physician within 1 business day.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Caregivers of patients ages 1-17 with steroid sensitive nephrotic syndrome (clinical diagnosis with edema, nephrotic range proteinuria [urine protein to creatinine ratio >2 mg/mg, or ≥ 300 mg/dL or ≥ 3+ protein on urine dipstick], and hypoalbuminemia ≤ 2.5 g/dL; resolution of proteinuria [negative/trace protein on urine dipstick] within 4 weeks of corticosteroid treatment)
• Caregivers of pediatric patients with steroid sensitive nephrotic syndrome diagnosed within 42 days at the time of enrollment
• Access to internet/wireless fidelity (Wi-Fi) in the home
• Caregiver proficiency with the English language

Exclusion Criteria

• Caregivers of pediatric patients with end-stage kidney disease
• Caregivers of pediatric patients with renal transplantation
• Caregivers of pediatric patients with clinical or histologic evidence of secondary nephrotic syndrome (e.g., systemic lupus erythematosus)

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NIH

Sponsor Role: collaborator

Emory University

OTHER

Sponsor Role: lead

Responsible Party

Chia-shi Wang

Associate Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Chia-shi Wang, MD, MS

Role: PRINCIPAL_INVESTIGATOR

Emory University

Locations

Children's Healthcare of Altanta

Atlanta, Georgia, United States

University of Minnesota Children's Hospital

Minneapolis, Minnesota, United States

Oregon Health and Science University

Portland, Oregon, United States

Countries

United States

References

Wang CS, Escoffery C, Patzer RE, McCracken C, Ross D, Rheault MN, Al-Uzri A, Greenbaum LA. A dual efficacy-implementation trial of a novel mobile application for childhood nephrotic syndrome management: the UrApp for childhood nephrotic syndrome management pilot study protocol (UrApp pilot study). BMC Nephrol. 2020 Apr 9;21(1):125. doi: 10.1186/s12882-020-01778-w.

Reference Type: DERIVED

PMID: 32272901 (View on PubMed)

Provided Documents

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

1K23DK118189-01A1

Identifier Type: NIH

Identifier Source: secondary_id

View Link

IRB00108912

Identifier Type: -

Identifier Source: org_study_id