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| Name | Class |
|---|---|
| Netherlands Organisation for Scientific Research | OTHER_GOV |
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The goal of this experimental study is to learn if the Booster intervention can be used as an early intervention for persistent fatigue. The aim of the intervention is to prevent more fatigue-related disabilities in young people with chronic illnesses like inflammatory bowel disease, childhood cancer, and juvenile idiopathic arthritis by improving self-confidence in managing fatigue (fatigue-related self-efficacy or FSE).
The main questions this study aims to answer are:
Participants will follow the Booster intervention. Booster is a personalised, blended care intervention designed to help young people understand how their thoughts, feelings, and activities impact their fatigue using a smartphone app. The Booster app uses experience sampling methodology (ESM) to track these fluctuations. Based on insights obtained from these data, the participant and their healthcare provider can set personal lifestyle goals, such as increasing physical activity and reducing daytime naps. An earlier version of this intervention, called PROfeel, was effective in reducing severe fatigue. The investigators have now improved the app to also help with setting and achieving personal goals and monitoring daily progress.
The investigators will measure the effect of Booster through daily questionnaires during two phases: Phase A (baseline, before the goal setting between patient and healthcare provider) and Phase B (intervention, starting in the lifestyle change period). The duration of Phase A will be randomised for each participant.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Booster intervention | Experimental |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Booster | Other | See description of arm. The Booster intervention has evolved from the PROfeel intervention. PROfeel is described in: https://doi.org/10.1186/s13063-022-06620-2 |
|
| Measure | Description | Time Frame |
|---|---|---|
| Fatigue-related self-efficacy | Single-item question, self-report via Booster app. The single item was designed and validated for this study. Answered on a VAS scale 0 to 100. Higher score represents higher fatigue-related self-efficacy. | Daily before and during the intervention, for approximately 130 days |
| Measure | Description | Time Frame |
|---|---|---|
| Fatigue severity | pediatric short fatigue questionnaire, 4-item questionnaire, answered on a seven point Likert scale (1 = yes that is true, 7=no, that is not true). Total score ranges from 4 to 28, with higher scores reflecting more fatigue. | Daily before and during the intervention, for approximately 130 days |
| Measure | Description | Time Frame |
|---|---|---|
| Fatigue-related self-efficacy | Self-Efficacy Scale-28 (SES-28) , 7-item questionnaire answered on a four-point likert scale, total scores range from 7 to 28 with higher scores indicating higher sense of control over fatigue. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
Inclusion Criteria:
Exclusion Criteria:
Regarding other treatments:
Regarding feasibility:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| MD Stutvoet, MSC, M.D. | Contact | +3188 755 5555 | booster@umcutrecht.nl | |
| A Vroegindeweij, MSC | Contact | +3188 755 5555 |
| Name | Affiliation | Role |
|---|---|---|
| SL Nijhof, MSC, M.D., PhD | UMCU | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Wilhelmina Children's Hospital, University Medical Centre Utrecht | Utrecht | Netherlands |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40708017 | Derived | Stutvoet MD, Vroegindeweij A, Houtveen J, van Litsenburg RRL, van de Putte E, Veltkamp RC, Nijhof SL. Blended therapy for adolescents with chronic health conditions to increase fatigue-related self-efficacy (Booster): protocol for a single-case multiple baseline study. Trials. 2025 Jul 24;26(1):255. doi: 10.1186/s13063-025-08960-1. |
| Label | URL |
|---|---|
| eHealth Junior Consortium | View source |
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Anomised individual participant data will be shared on request (see access criteria).
Data will be avalaible after publication, and at least one year after the end of the eHealth Junior Consortium. Data remains available until the end of 2040.
Participants provide consent through a consent form, specifying whether their data can be used for other research. If consent is not given, participants can still participate in the study without their data being used in these additional research contexts.
External researchers can apply for access to data via handing in their research proposal to the principal investigator of this study. Studies concerning youth with chronic illnesses, fatigue, and studies involving extensive repeated measurements may be eligible to use the data.
Data will be anomised before sharing to ensure privacy of participants.
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| ID | Term |
|---|---|
| D005221 | Fatigue |
| D002908 | Chronic Disease |
| ID | Term |
|---|---|
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
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| ID | Term |
|---|---|
| D007117 | Immunization, Secondary |
| ID | Term |
|---|---|
| D007114 | Immunization |
| D007167 | Immunotherapy |
| D056747 | Immunomodulation |
| D001691 | Biological Therapy |
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multiple baseline single case experimental AB-phase design
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|
| Participation |
School or work presence. Calculated: (hours present/the hours scheduled)*100 |
| Daily before and during the intervention, for approximately 130 days |
| Life satisfaction | Cantril Ladder, single-item question, rate life with ladder numbered from 0 to 10. Top of the ladder (10) represents the best possible life. The bottom (0) represents the worst possible life. | Daily before and during the intervention, for approximately 130 days |
| Perceived health | EuroQol (EQ) visual analogue scale (VAS), ranging from 0 (worst health you can imagine) to 100 (best health you can imagine). | Daily before and during the intervention, for approximately 130 days |
| Fatigue |
PEDsQL-MFS, 23-item questionnaire |
| Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Fatigue | Pediatric Quality of Life Inventory-Multidimensional Fatigue Scale (PEDsQL-MFS), 24-item questionnaire answered on a five-point likert (0=never, 4 = almost always), total score ranging from 0 to 96, with higher scores representing more fatigue. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Health-related quality of life | Pediatric Quality of Life Inventory-Generic Core Scales (PEDsQL-GCS), a 23-item questionnaire answered on a five-point likert (0=never, 4 = almost always), total score ranging from 0 to 92, with higher scores representing higher quality of life. The questionnaire has the following subscales: physical, emotional, social and school or work functioning. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Health-related quality of life | Child Health Utility Index 9D (Chu9d), nine-item questionnaire answered on a five-point likert (0 to 4), total score ranging from 0 to 36, higher scores representing lower quality of life. The Chu9D has utility values that enable calculating quality adjusted life years. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Health-related quality of life | EuroQol Five Dimensions Health Questionnaire Youth (EQ-5D-Y-3L), five-item questionnaire answered on a three point likert (no problems (1), some problems(2), a lot of problems(3)), total score ranging from 5 to 15, higher scores representing lower quality of life. The EQ-5D-Y-3L has utility values that enable calculating quality adjusted life years. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| School or work absence | Single item question on average absence over past half a year in % | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Illness identity - fatigue | Illness identity questionnaire (ILQ), a 25-item questionnaire, answered on a five-point Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree). It has the following subscales: engulfment (8 items, range 8 to 40), rejection (5 items, range 5 to 25), acceptance (5 items, range 5 to 25) and enrichment (7 items, range 7 to 35). Higher scores on subscales represent respectively higher engulfment, rejection, acceptance and enrichment. The questionnaire is adapted to specifically ask for illness identity regarding fatigue (e.g., I refuse to see my fatigue as part of myself) | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Mastery | Pearlin Schooler Mastery Scale, a seven-item questionnaire, answered on a four-point Likert scale, ranging from strongly disagree (1) to strongly agree (4). Total score ranges from 7 to 28, with higher scores reflecting higher levels of mastery. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| Physical activity | Physical Activity Questionnaire for Adolescents (PAQ-A), a nine-item questionnaire. The first eight items are answered on a five-point Likert scale, ranging from low (1) to high (5) levels of physical activity. The ninth item asks whether the past week's activity was typical, less than typical, or more than typical, to provide context for the responses.The total score is calculated by averaging the scores of the first 8 items, yielding a final score ranging from 1 to 5. Higher scores indicate higher levels of physical activity. | Baseline, 3 months, 6 months, and if interim analysis show medium to large change also at 12 months |
| D013812 |
| Therapeutics |
| D007158 | Immunologic Techniques |
| D008919 | Investigative Techniques |