Adolescent and Young Adult Cancer Patients: Cognitive Toxicity on Survivorship (ACTS)

A prospective longitudinal cohort study will be conducted at National Cancer Centre Singapore (NCCS) and KK Women's and Children's Hospital (KKH) from April 2018 to April 2021. Eligible cancer patients aged between 15-39 years old will be recruited and followed up for a period of 12 months. In addition, healthy individuals will also be recruited into the control arm of the study. The prevalence of cognitive impairment will be assessed via objective cognitive functional assessments in the form of the Cambridge Neuropsychological Test Automated Battery (Cantab) test scores and Functional Assessement of Cancer-Therapy Cognitive Function (FACT-Cog v3.0). The overall cognitive performance and post-treatment health issues measured by the assessment tools used would be compared between AYA cancer patients and healthy controls at baseline and 6 months after baseline. Other post-treatment health issues will be assessed in relation to cognitive impairment with a series of questionnaires including Multidimensional Fatigue Symptom Inventory-Short Form (MFSI-SF) for cancer-related fatigue, the Rotterdam Symptom Checklist (RSCL) for symptom burden, the Paediatrics Quality of Life Inventory (PedsQL 4.0) for psychosocial outcomes, InCharge questionnaire for perceived financial distress and a work/education questionnaire respectively. To enhance the understanding of the biological mechanism behind cognitive impairment, levels of biomarkers and genetic determinants will also be correlated with overall cognitive impairment. Blood plasma samples drawn from patients will be assessed for Brain-derived neutrotrophic factor (BDNF) levels, hormone levels and pro-inflammatory cytokines such as IL-1β, IL-4, and IL-6 using multiplex immunoassay. MRI scans and relevant neuroimaging techniques will be used to assess structural changes and functional connectivities in brain. Lastly, wearable devices will be utilized to track activity and lifestyle data among AYA cancer patients to investigate on the extent of impact of cognitive impairment and to assess the feasibility of using these wearables devices to personalize symptom management. Findings from this proposed study will enhance understanding of cognitive toxicity and post-treatment health issues faced by the AYA patient group, which will facilitate the development of effective interventions to better cope with their daily lives.