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Implementing an eHealth Model of Care for Pediatric Patients and Families at the End of Treatment for Acute Lymphoblastic Leukemia (EMERGE): Type 2 Nonrandomized Hybrid Implementation-Effectiveness Trial Study Protocol.

M. McCarthy,C. Williams,Michelle Tennant,Richard De Abreu Lourenço,Hannah Pring,Katie Moore,J. Templeton,Ken Knight,P. Downie,Stephen Hearps,Cinzia R. De Luca

Published 2025 in JMIR Research Protocols

ABSTRACT

Background Despite increasing survival rates for childhood cancers, physical and psychological late effects are common. The end-of-treatment period is recognized as a complex transition period, and there are few evidence-based models of care to address patient and family needs during this early survivorship period. The EMERGE model of care has been developed to provide eHealth-delivered, multidisciplinary care to patients and families in the 12 months following treatment for acute lymphoblastic leukemia, the most common type of pediatric cancer. Objective The primary aim of this study is to assess the implementation success of the EMERGE model of care into the clinical setting. Secondary aims include evaluating effectiveness and cost consequences. Methods The study uses a nonrandomized hybrid implementation-effectiveness design, assessing both implementation and clinical outcomes. Implementation metrics include evaluating the reach, acceptability, feasibility, and maintenance of the EMERGE model. Clinical effectiveness outcomes include parent satisfaction with the EMERGE intervention and pre-post intervention evaluation of parent psychological stress and unmet information needs. The Reach, Effectiveness, Adoption, Implementation, and Maintenance implementation science framework was used to guide study outcomes. Semistructured interviews with clinicians and parents will further evaluate the acceptability and sustainability of the EMERGE model and appraise barriers and facilitators to implementation. Cost analysis will include evaluation of the resources required for program delivery and the impact on subsequent health care service use measured using Medicare data and health service usage collected during the EMERGE intervention. Results The trial commenced in December 2022, and recruitment concluded in October 2025, with 81 families recruited. Data collection is ongoing and is anticipated to be completed in Summer 2026. Conclusions This study will address a critical gap in multidisciplinary care delivery at the end of treatment for young survivors of acute lymphoblastic leukemia and their families. The EMERGE model has the potential to improve the quality of life of patients and families by providing an early survivorship intervention. Importantly, the usage of an eHealth (telehealth) model will enable distance-delivered care, facilitating family participation regardless of geography. By measuring implementation, clinical, and cost impacts, this study will inform the future development of end-of-treatment models of care that are almost universally lacking in pediatric oncology care.

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