Abstract 36 Purpose Each year, more than 200,000 children globally are diagnosed with cancer, more than 80% of which occurs in low- to middle-income countries. Pediatric cancer survival rates in low- to middle-income countries are 5% to 25% compared with 80% in high-income countries, with treatment abandonment accounting for one third of the survival gap. A mobile case management system can improve patient communication and reduce treatment abandonment. The current proposal evaluated the feasibility and acceptability of a mobile phone–based case management system at Bugando Medical Centre (BMC) in Mwanza, Tanzania. Methods We surveyed 40 families of children with cancer who attended BMC and 10 pediatric oncology providers at BMC to assess mobile phone ownership, use patterns, communication preferences (eg, voice v text messaging), and the advantages and disadvantages of a mobile case management system. Results In all, 85% of families owned a mobile phone and 100% of providers owned smart phones. Of families, 98% wanted to communicate with a health care provider regarding treatment support using a mobile phone, 92% wanted to receive laboratory results via mobile phone, 95% wanted to receive reminders of upcoming appointments, and 88% wanted to receive educational information on cancer via mobile phone. Of providers, 100% thought that it would be useful to use a mobile phone to communicate with patients, share laboratory results, and view standardized pediatric treatment protocols and checklists. Conclusion Most families of pediatric patients with cancer at BMC use mobile phones, with high interest in using mobile technology to communicate with providers. This increases the likelihood of success for a mobile case management platform that is aimed at reducing the abandonment of care among pediatric patients with cancer. AUTHORS' DISCLOSURES OF POTENTIAL CONFLICTS OF INTEREST No COIs from the authors.