The treatment of childhood acute lymphoblastic leukemia in Guatemala: Biologic features, treatment hurdles, and results.

BACKGROUND: The National Pediatric Oncology Unit (UNOP) is the only pediatric hemato-oncology center in Guatemala. METHODS: Patients ages 1 to 17 years with acute lymphoblastic leukemia (ALL) were treated according to modified ALL Intercontinental Berlin-Frankfurt-Münster (IC-BFM) 2002 protocol. Risk classification was based on age, white blood cell count, immunophenotype, genetics (when available), and early response to therapy. RESULTS: From July 2007 to June 2014, 787 patients were treated, including 160 who had standard-risk ALL, 450 who had intermediate-risk ALL, and 177 who had high-risk ALL. The induction death rate was 6.6%, and the remission rate was 92.9%. The rates of death and treatment abandonment during first complete remission were 4.8% and 2.5%, respectively. At a median observation time of 3.6 years, and with abandonment considered an event, the 5-year event-free survival and overall survival estimates ( ± standard error) were 56.2% ± 2.1% and 64.1% ± 2.1%, respectively, with a 5-year cumulative incidence of relapse of 28.9% ± 2.0%. Twenty-one of 281 patients (7.5%) investigated were positive for the ets variant 6/runt-related transcription factor 1 (ETV6/RUNX1) fusion. CONCLUSIONS: A well organized center in a low-middle-income country can overcome the disadvantages of malnutrition and reduce abandonment. Outcomes remain suboptimal because of late diagnosis, early death, and a high relapse rate, which may have a partly genetic basis. Earlier diagnosis, better management of complications, and better knowledge of ALL will improve outcomes. Cancer 2017;123:436-448. © 2016 American Cancer Society.

POND4Kids: a global web-based database for pediatric hematology and oncology outcome evaluation and collaboration.

The Pediatric Oncology Network Database, (www.pond4kids.org, POND), is a secure, web-based, multilingual pediatric hematology/oncology database created for use in countries with limited resources to meet various clinical data management needs including cancer registration, delivery of protocol-based care, outcome evaluation, and assessment of psychosocial support programs. Established as a part of the International Outreach Program at St. Jude Children's Research Hospital in Memphis, Tennessee, POND serves as a tool for oncology units to store patient data for easy retrieval and analysis and to achieve uniform data collection to facilitate meaningful comparison of information among centers. Launched in 2003, POND now has 233 sites registered with over 1,000 users in 66 countries. However, adoption and usage of POND varies widely among sites. This paper reviews some of the challenges to developing a global collaborative clinical platform based on the experiences of developing POND. The paper also presents a case study of POND use in Guatemala, where the Guatemalan National Oncology Unit (UNOP) has developed extensive internal and external global collaborations using POND.