Profile and Outcomes of Pediatric Hematology and Oncology Patients Diagnosed with COVID-19 in the Philippine General Hospital.

Introduction: The coronavirus pandemic has affected millions worldwide. Better understanding of COVID-19 in pediatric hematology-oncology patients in a resource-limited setting is crucial to improve care as the pandemic ensues. Objectives: This study describes the clinical profile and outcomes of pediatric hematology oncology patients with COVID-19 seen at the Philippine General Hospital (PGH). Methods: A retrospective, descriptive review of pediatric hematology oncology patients with COVID-19 seen between March 2020 to March 2021 in PGH was done. Results: Forty patients were identified. Seventeen percent had non-malignant hematologic conditions, 40% had leukemias, and 42.5% had solid tumors. Fever and cough were the most common manifestations. Seventy-six percent were on treatment, 9% were newly diagnosed, and 7% were in relapse or disease progression. Fifty-five percent had mild COVID-19; 5% and 2.5% had severe and critical COVID-19, respectively. Thirty-seven percent were asymptomatic. Cancer-related therapy was placed on hold for most patients. There were two mortalities, none was due to COVID-19. Conclusion: Results suggest that patients with hematologic and oncologic conditions have a mild course, with majority showing recovery from COVID-19. Delays in cancer-related therapy however, may contribute to disease progression and mortality.

The Effect of a Patient Navigator on Treatment Abandonment and Follow-up for High Grade Osteosarcoma Patients in the Philippine General Hospital.

INTRODUCTION: Treatment abandonment for osteosarcoma is a significant problem in developing countries with rates as high as 70%. This study aimed to determine the effect of a patient navigator on treatment abandonment and patient follow-up of osteosarcoma patients at a tertiary referral center. MATERIALS AND METHODS: A retrospective review of osteosarcoma patients was performed investigating 2 cohorts based on the start of the patient navigator. Group 1 (Pre-Patient Navigator, n=46) were treated from January 2016 to December 2017 while Group 2 (Post-Patient Navigator, n=29) were treated from January 2018 to June 2019. The primary outcome investigated was treatment abandonment defined as missing 4 or more consecutive weeks of treatment. Semi-structured interviews were conducted to investigate the effect of the patient navigator on the cohorts. RESULTS: Treatment abandonment rates for the Pre-Patient Navigator group was significantly higher compared to those with a patient navigator (50% vs 6%, p=0.0001). Abandonment for the pre-navigator group occurred at a mean of 2.9 months (0 - 9 months, median 3 months). Fourteen of 23 patients who abandoned from Group 1 did not proceed to neoadjuvant chemotherapy while 3 patients abandoned after completing 1 cycle of neoadjuvant chemotherapy. In the patient navigator group, no patients abandoned prior to completing 3 cycles of chemotherapy. One patient abandoned after refusing a below knee amputation after 3 cycles of neoadjuvant chemotherapy and 1 patient did not complete further chemotherapy after having a hip disarticulation. Patient feedback on the patient navigator experience was favorable. CONCLUSIONS: Having a patient navigator from diagnosis throughout treatment reduced treatment abandonment rates in osteosarcoma patients and may serve as a model for other low to middle income countries.

Association of glutathione-S-transferase M1,P1, and T1 gene polymorphisms with treatment response in childhood acute lymphocytic leukemia

@#<p style="text-align: justify;">There is still a strong need for new treatment strategies that will maintain remission and prolong survival in patients with acute lymphoblastic leukemia (ALL). The glutathione-S-transferase (GST) enzymes, which are coded by highly polymorphic genes, have been associated with the risk of developing cancer and were found to regulate effect of cancer treatment drugs.<br /><strong>OBJECTIVES:</strong> The present study determines the association of GSTM1, GSTP1 and GSTT1 polymorphisms and treatment response in terms of occurrence of adverse events and relapse in ALL in Filipino children.<br /><strong>METHODS:</strong> This is a follow up study on the 2007 investigation done by Alcausin et al. which determined the association of the GST P1, M1, and T1 polymorphisms and occurrence of ALL. Four-year follow-up data were available for 46 out of the 50 patients from January 2007 to May 2011. Odds ratios (OR) as measures of association of GST M1, P1 and T1 gene polymorphisms with treatment outcomes were estimated at 95% confidence interval.<br /><strong>RESULTS:</strong> Results show a trend towards predisposition to elevation of liver enzymes in patients with GSTT1 and GSTP1 mutant genotypes showing an OR (95% Cl) of 2.0 (0.62-6.49). The presence of GSTM1 null genotype showed a trend towards protection from occurrence of relapse basing on both crude and adjusted ORs, 0.58 (0.16-2.07) and 0.23 (0.05-1.20), respectively. However, these results are not statistically significant.<br /><strong>CONCLUSION: </strong>The GSTP1 heterozygous genotype conferred increased predisposition to elevation of liver enzymes while the GSTT1 null genotype was shown to be a possible risk factor towards the occurrence of both infection and elevation of liver enzymes during chemotherapy. Furthermore, the GSTM1 null genotype appears to be protective from occurrence of relapse. It is recommended to do similar large-scale studies in the future to obtain more conclusive results.</p>