La Union Sur

Researchers are evaluating cancer treatment outcomes in children, adolescents, and young adults aged 0 to 21 years diagnosed with any type of cancer, focusing especially on acute lymphoblastic leukemia and lymphoblastic lymphoma. The study is set in low- and middle-income countries where challenges like delayed diagnosis, misdiagnosis, and limited access to care lead to poorer outcomes compared to high-income countries. This research aims to understand treatment failure and therapy-related toxicities to improve future care strategies. The study collects data by reviewing medical records retrospectively from pediatric, adolescent, and young adult cancer patients treated at oncology centers in Guatemala, Honduras, El Salvador, Armenia, and Tanzania. There are no new drugs or treatments given; instead, the study examines past treatments such as chemotherapy, surgery, radiation therapy, and immunotherapy. Data abstraction is used to assess treatment failure and toxicities over a three-year period from the date of cancer diagnosis. Participants' medical records will be reviewed to gather information on treatment outcomes, therapy-related toxicities, and clinical events within three years following diagnosis. The study monitors the incidence of treatment failure and toxicities by examining available medical records, with patients without events censored at their last contact within three years. This retrospective follow-up helps researchers understand cancer care quality in these settings and supports the development of evidence-based interventions.