# The NeST (Nephrotic Syndrome Trust) App, a novel, co-designed self-management support app for young people and young adults with Nephrotic Syndrome: a multi-method survey reporting initial app development and evaluation

## TL;DR

The NeST app was co-designed with young people and young adults with Nephrotic Syndrome to help them manage their condition and was found to be helpful and easy to use.

## Contribution

A co-designed, user-led app for Nephrotic Syndrome management with features tailored to young patients' needs.

## Key findings

- All 20 participants found the NeST app helpful and easy to use.
- The app will be integrated with the UK Renal Registry for national data collection.
- The app could be adapted for other kidney conditions at minimal cost.

## Abstract

There is a need for a user-led, evidence-based digital application (app.) that meets the identified information and support needs and preferences of young people and young adults aged 12–35 years (YP/YA) with Nephrotic Syndrome (NS) in the United Kingdom (UK). The password protected novel Nephrotic Syndrome Trust (NeST) app was therefore co-designed with YP/YA with NS to empower them to: access news of NS related events, take more control of their treatment and feel confident in sharing and accessing their data. The app allows YP/YA with NS to record regular urine dipstick readings, blood pressure, weight, temperature, medications, immunisations, symptoms (e.g. swollen feet), relapse or remission episodes, and the name of their renal unit. Additional features include an appointment diary to record feedback from their renal multidisciplinary team, treatment information and hospital admission episodes. The software was approved for release on iOS & Android app stores and the NHS Digital verification programme, meaning that users can be identified against their NHS records. The aim of the survey was to evaluate the NeST App from the perspective of YP/YA with NS.

Through a consultative process, an online survey involving a combination of closed and open-ended questions was created and circulated via social media and email to target users of the app.

Twenty YP/YA with NS aged 12 years and older tested the app, completed the survey and provided quantitative and qualitative data. All found this app helpful, and easy to use and all would use it in future as part of standard practice.

These data provide important feedback and suggestions for further app refinement and will integrate it with current national data collection via the UK Renal Registry (UKRR). To build on this collaborative project the developers will continue to collaborate with patients and health care professionals to ensure the app is a continually evolving and relevant resource, providing a voice for those living with NS. The app technology could potentially be rebooted and relaunched at minimal cost to support patients with other kidney conditions.

Not applicable.

The online version contains supplementary material available at 10.1186/s12882-025-04684-1.