Playful Sensorimotor Training to Reduce the Symptoms of Chemotherapy-induced Peripheral Neuropathy in Pediatric Brain Tumor Patients- a Randomized Controlled Trial

Chemotherapy-induced peripheral neuropathy (CIPN) is a highly prevalent and clinically relevant side-effect of cancer treatment. The severe symptoms such as loss of sensation, numbness, pain, absent reflexes or loss of balance control not only diminish children's quality of life but also affect the medical therapy. To date, there are no effective treatment options to reduce the symptoms of CIPN. Promising results have so far been achieved with specific exercise interventions.

The investigators would therefore like to conduct a prospective, multicenter, two-armed trial (RCT with follow-up). Patients (N=20) will be recruited from the Hospital for Children and Adolescents, Kantonsspital Aarau. Prior to randomization, all primarily eligible patients that have received a platin derivate or vinca-alkaloid, will be screened for symptoms of CIPN. Eligible patients with a neurologically confirmed CIPN will then be randomized either into an intervention group or a control group (CG). Patients in the intervention group will perform a standardized, age-adjusted, specific playful sensorimotor training (SMT) program twice a week for 12 weeks in addition to usual care, while the control group receives treatment as usual. The CG will be given the opportunity to participate in the intervention after study completion. Data change will be assessed at 3 time points: At baseline (T0), after 12 weeks (post intervention testing, T1), and after 12 weeks of follow-up (T2). Primary endpoint is the Ped-mTNS score in order to subjectively as well as objectively assess the severity of CIPN symptoms. It contains a short questionnaire as well as more objective parameters such as light touch sensation, pin sensibility, vibration sensibility, deep tendon reflexes and muscular strength. Additionally, the CIPN symptom pattern will be assessed via nerve conduction studies, CIPN related pain, dorsiflexion and knee extension as well as postural control. Furthermore, investigators will be evaluating patients' level of physical activity, walk to run transition time, lower limb power as well as patients integration in physical education (PE) in school and sport club activities. The investigators hypothesize that patients in the intervention group will be able to reduce relevant symptoms of CIPN, improving related physical functions and enhancing children's social reintegration.