The long-term goal of this work is to establish an efficacious family-based health
promotion intervention that curbs excessive weight gain among youth with newly diagnosed
acute lymphoblastic leukemia (ALL) by integrating support for family coping with stress
during the early phases of treatment.
The objectives of the current study are to adapt an existing family-based health
promotion intervention, NOURISH-T, to meet the needs of families of youth in the early
phases of ALL treatment (NOURISH-ALL) and (2) assess three key components of engagement
in preparation for a fully powered efficacy trial.
NOURISH-T is a 6-session family-based health promotion intervention that has demonstrated
improved physical activity (PA), dietary intake, and weight among youth who are cancer
survivors. Guided by the ORBIT Model of Behavioral Intervention Development, this study
will modify NOURISH-T to fit the early ALL treatment context through a multi-stage
adaptation and refinement process. Adaptations will incorporate family systems and
cognitive behavioral intervention components to support healthy family coping with
diagnosis and treatment stress. Additional, patient-centered adaptations will be informed
by semi-structured family input around intervention content and delivery.
The central hypothesis is that this rigorous approach to adaptation will yield an
intervention that is feasible, acceptable, and engaging for families of youth with ALL.
By incorporating tailored strategies for health promotion during the early phases of ALL
treatment, the proposed study seeks to shift clinical practice paradigms to prevent
weight-related disparities in treatment outcomes.
Hypothesis:
The central hypothesis is that this rigorous approach to adaptation will yield an
intervention that is feasible, acceptable, and engaging for families of youth with ALL.
Aims:
AIM 1: To (a) adapt the NOURISH-T intervention to target the early phases of ALL
treatment (NOURISH-ALL) and (b) refine this ALL-tailored intervention for optimal
feasibility and acceptability from the patient and family perspective. (Years 1-2)
Defining the specific needs of families of youth with newly diagnosed ALL is essential to
effectively adapting behavior change interventions to the early phases of ALL treatment.
Refining interventions for optimal feasibility and acceptability from the family
perspective is critical to successful intervention development.
Aim 1a: Intervention Adaptation. The purpose of Aim 1a is to adapt the NOURISH-T
intervention to meet the specific needs of families during the early phases of ALL
treatment. To achieve this goal, the study will initiate a three-step intervention
adaptation process that includes (1) initial integration of cognitive behavioral therapy
(CBT) and family systems frameworks, (2) formative assessment with families of youth with
ALL, and (3) formative assessment with multidisciplinary experts.
Aim 1b. Refinement to Optimize Feasibility and Acceptability. The purpose of Aim 1b is to
adaptively refine NOURISH-ALL through sequential testing with individual families during
the early phases of ALL treatment, with the goal of optimizing feasibility and
acceptability from the family perspective. In line with the ORBIT model, the study will
utilize an adaptive approach, similar to the commonly known "PDSA cycle," to maximize
responsivity to individual patient/family feedback. Participants will receive NOURISH-ALL
and provide feedback throughout the intervention (i.e., after each session and upon
intervention completion), which will be iteratively analyzed and incorporated to improve
intervention delivery for the next family.
AIM 2: To conduct an external pilot single-arm trial of NOURISH-ALL focused on three
components of engagement. (Years 3-5). Pilot testing key components of engagement is
critical to optimizing design and methodology of fully powered efficacy trials. The
purpose of Aim 2 is to pilot a single-arm trial of the finalized NOURISH-ALL intervention
in a sample of families of youth in the early phases of ALL treatment to assess
recruitment, retention, and dose received. Results will directly inform the design of the
fully powered randomized control trial to test intervention efficacy (R01 application to
be submitted in Year 4).