The Longitudinal Relationship of HU Adherence to HRQOL, Barriers to Adherence and Habit in SCD.
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04691323 |
Recruitment Status :
Recruiting
First Posted : December 31, 2020
Last Update Posted : July 27, 2022
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Sickle Cell Disease Sickle B+ Thalassemia Sickle Beta Zero Thalassemia Sickle Cell Hemoglobin C | Other: HU-Go app | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 72 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Supportive Care |
Official Title: | The Longitudinal Relationship of Hydroxyurea Adherence Behavior to Health-related Quality of Life, Barriers to Adherence and Habit Formation in Patients With Sickle Cell Disease. |
Actual Study Start Date : | March 2, 2021 |
Estimated Primary Completion Date : | November 2023 |
Estimated Study Completion Date : | February 2025 |

Arm | Intervention/treatment |
---|---|
HU-Go app intervention arm
Participants will use the HU-Go app intervention arm for 12 months.
|
Other: HU-Go app
A novel multifunctional mobile app (HU-Go) to improve adherence to hydroxyurea in patients with sickle cell disease |
- Hydroxyurea adherence rate [ Time Frame: 12 months ]Adherence rate is defined as number of given HU doses given, as captured by HU-Go app, divided by total number of doses expected during study period.
- Adherence to Hydroxyurea using Modified Morisky Adherence Scale 8-items [ Time Frame: 12 months ]Numerical value on a scale 0-8 (higher score indicating higher adherence to hydroxyurea)
- Adherence to Hydroxyurea using Visual Analogue Scale [ Time Frame: 12 months ]Numerical value on a scale 0-100% (higher score indicating higher adherence to hydroxyurea)
- Pain score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for pain intensity, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (higher T scores indicating worse pain).
- Fatigue score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for fatigue, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (higher T scores indicating worse fatigue).
- Physical function score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for physical function, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (lower T scores indicating worse physical function).
- Depression score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for depression, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (higher T scores indicating worse depression).
- Anxiety score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for anxiety, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (higher T scores indicating worse anxiety).
- Peer relationships score using Patient reported outcomes measurement information system (PROMIS) measure [ Time Frame: 12 months ]Patient reported outcomes measurement information system (PROMIS) measure for peer relationships, numerical value on a scale of 0-100 points, normal average for the general population is 50 with standard deviation of 10 points (lower T scores indicating worse peer relationships).
- Codes and themes from qualitative data analysis [ Time Frame: 12 months ]Semi-structured interviews focused on HU taking behavior, barriers to adherence and habit formation

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 12 Years to 21 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age 12-21 years old
- Any sickle cell disease genotype
- On steady state of hydroxyurea for 2 months
- Own or have access to a smartphone
- Parents of patients that meet the eligibility criteria and are enrolled in the study will be included
Exclusion Criteria:
- Patients with recent hospitalizations within the past 7 days

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04691323
Contact: Sherif M. Badawy, MD, MS | (312) 227-4836 | sbadawy@luriechildrens.org | |
Contact: Kathryn King, BS | (312) 227-4825 | katking@luriechildrens.org |
United States, Illinois | |
Ann & Robert H Lurie Children's Hospital of Chicago | Recruiting |
Chicago, Illinois, United States, 60611 | |
Contact: Sherif M. Badawy, MD, MS 312-227-4836 sbadawy@luriechildrens.org | |
Contact: Kathryn King, BS (312) 227-4825 katking@luriechildrens.org | |
Principal Investigator: Sherif M. Badawy, MD, MS |
Principal Investigator: | Sherif M. Badawy, MD, MS | Ann & Robert H Lurie Children's Hospital of Chicago |
Responsible Party: | Sherif Badawy, MD, Assistant Professor, Department of Pediatrics, Division of Hematology, Oncology and Stem Cell Transplant, Ann & Robert H Lurie Children's Hospital of Chicago |
ClinicalTrials.gov Identifier: | NCT04691323 |
Other Study ID Numbers: |
IRB 2020-3366 1K23HL150232 ( U.S. NIH Grant/Contract ) |
First Posted: | December 31, 2020 Key Record Dates |
Last Update Posted: | July 27, 2022 |
Last Verified: | July 2022 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
sickle cell disease hydroxyurea |
Anemia, Sickle Cell Thalassemia Hemoglobin SC Disease Anemia, Hemolytic, Congenital Anemia, Hemolytic |
Anemia Hematologic Diseases Hemoglobinopathies Genetic Diseases, Inborn |