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Adherence to HU and HRQOL in Patients With Sickle Cell Disease: An Intervention Study Using HU-Go App

Adherence to Hydroxyurea and Health-related Quality of Life in Patients With Sickle Cell Disease: An Intervention Study Using a Smartphone App (HU-Go)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04675645
Enrollment
33
Registered
2020-12-19
Start date
2018-05-15
Completion date
2020-07-11
Last updated
2021-07-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sickle Beta Zero Thalassemia, Sickle B+ Thalassemia, Sickle Cell Disease, Sickle Cell Hemoglobin C

Brief summary

This project addresses three important research questions. First, adolescents and young adults (AYA) with sickle cell disease (SCD) and their parents/caregivers will be engaged to inform the (1) domains of health-related quality of life (HRQOL) most important to them, (2) frequency at which they are willing to complete them, and (3) other procedures related to the use, uptake and effect of the HU-Go app as a tool to improve hydroxyurea (HU) adherence. Second, this study seeks to utilize novel modern mobile technology using a multi-functional personalized platform to improve adherence to HU and measure HRQOL in youth with SCD, using NIH-endorsed PROMIS® measures, based on a conceptual model with predefined behavioral targets and mediators. Third, we plan to assess HRQOL changes and identify modifiable behavioral strategies that could serve as surrogates or predictors for HU adherence. This real-time feedback might empower self-directed changes in behavior that could improve adherence to HU.

Detailed description

Aim 1: Identify the needs, desires, concerns, and expectations of AYA patients with SCD and their parents/caregivers that will guide implementation of a mHealth tool, HU-Go, designed to improve adherence to HU. We will conduct semi-structured interviews with patients and their parents/caregivers. Transcripts will be independently coded and thematic analysis will be conducted. Hypothesis 1: AYA patients with SCD and their parents/caregivers will identify specific features, content, and usability requirements of HU-Go. Aim 2: Assess the longitudinal relationship of HU adherence to HRQoL domains, including fatigue and depression. HU adherence will be measured using electronic pill bottles, self-report measures, laboratory markers, and medication possession ratio (MPR). HRQOL will be assessed using PROMIS® measures. Hypothesis 2: Low HU adherence is associated with impairment of HRQoL domains. Aim 3: Conduct a single-arm, pilot study to determine the effect size associated with improvement in HU adherence after using HU-Go for 12 weeks. Adherence will be measured using self-report measures, laboratory markers and MPR. Hypothesis 3: HU-Go will improve HU adherence by at least 20%.

Interventions

A novel multifunctional mobile app (HU-Go) to improve adherence to hydroxyurea in patients with sickle cell disease

Sponsors

Ann & Robert H Lurie Children's Hospital of Chicago
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to 25 Years
Healthy volunteers
No

Inclusion criteria

* At least 12 years old at the time of study enrollment * Diagnosis of sickle cell disease (hemoglobin SS or SC or S/B 0 thalassemia) confirmed by hemoglobin electrophoresis * On hydroxyurea * Own or have access to a smartphone * Be able to speak and read English

Exclusion criteria

* Chronic monthly transfusion support * Any hemoglobinopathy other than sickle cell disease

Design outcomes

Primary

MeasureTime frameDescription
Achieving feasibility based on the number of participants completed all study procedures within 6 months of study enrollment3 months of study enrollmentFeasibility is defined as having 80% or more of study participants complete the study within 6 months of enrollment

Secondary

MeasureTime frameDescription
Adherence to Hydroxyurea using Modified Morisky Adherence Scale 8-items3 months of study enrollmentNumerical value on a scale 0-8 (higher score indicating higher adherence to hydroxyurea)
Adherence to Hydroxyurea using Visual Analogue Scale3 months of study enrollmentNumerical value on a scale 0-100% (higher score indicating higher adherence to hydroxyurea)
Patient satisfaction with the smartphone app intervention (HU-Go)3 months of study enrollmentCustomized patient satisfaction questionnaire, numerical value on a scale 0-10 (higher score indicating higher satisfaction with the app)
HRQOL outcomes3 monthsPatient reported outcomes measurement information system (PROMIS) measures, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points. Each HRQOL outcome domain score will be reported separately (higher T scores indicating worse pain, fatigue, depression and anxiety, and lower scores indicating worse physical functioning and peer relationships).

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026