High Symptom Burden Predicts Poorer Quality of Life Among Children and Adolescents Receiving Hematopoietic Stem Cell Transplantation or Chimeric Antigen Receptor T-Cell Therapy.

Background: Children with cancer and other serious illnesses experience symptom burden during hematopoietic stem cell transplantation and chimeric antigen receptor T-cell therapy, yet limited research has characterized how these symptoms interact with overall quality of life over time.

Objective: The aim of this study was to examine the longitudinal relationship between symptoms and quality of life in children receiving hematopoietic stem cell transplantation or chimeric antigen receptor T-cell therapy.

Methods: A multisite study design was used to collect symptom and quality of life information at pre-cell infusion and days +30, +60, and +90 from children (N = 140) receiving hematopoietic stem cell transplantation and chimeric antigen receptor T-cell therapy. A longitudinal parallel process model was used to characterize the relationship between symptoms and quality of life.

Results: Children (mean age, 8.4 years) received allogeneic transplant (57.9%), autologous transplant (25.7%), or chimeric antigen receptor T-cell therapy (16.4%). Symptom prevalence was highest at baseline (>50%) for pain, fatigue, nausea, vomiting, and low appetite. Quality of life scores were worse at baseline (mean [SD], 69.5 [15.8]) and improved by 10 points by day +90. The longitudinal model indicated high symptom prevalence at baseline predicted worse quality of life at both baseline and day +90.

Conclusions: Children felt worse early in the treatment trajectory and improved by day +90. The level of symptom burden predicted the overall quality of life at all time points.

Implications For Practice: Children experiencing high symptom burden should receive frequent assessment and enhanced symptom management throughout the treatment trajectory to mitigate negative impacts on quality of life.