Related Experiment Video
Updated: Feb 25, 2026

Murine Model of Leukemia Relapse to Induction Chemotherapy for Acute Lymphoblastic Leukemia
Published on: October 17, 2025
Folate deficiency in north Indian children undergoing maintenance chemotherapy for acute lymphoblastic
Nirmalya Roy Moulik1, Archana Kumar2, Suraksha Agrawal3
1Department of Paediatrics, Royal Marsden Hospital, Sutton, Greater London, United Kingdom.
Insights
Folate deficiency is common in children with acute lymphoblastic leukemia (ALL) undergoing maintenance chemotherapy in India. This deficiency increases the risk of treatment complications and mortality, highlighting the need for further research into supplementation.
Area of Science:
- Pediatric Oncology
- Hematology
- Nutritional Science
Background:
- Treatment-related toxicity and mortality are significant concerns during maintenance chemotherapy for childhood acute lymphoblastic leukemia (ALL), particularly in low- and middle-income countries (LMICs).
- Undernutrition and micronutrient deficiencies are prevalent in children undergoing ALL treatment in LMICs.
- This study investigates the prevalence and clinical impact of folate deficiency in North Indian children with ALL during maintenance therapy, considering antifolate drug use and high population folate deficiency rates.
Purpose of the Study:
- To examine the prevalence of folate deficiency in children with ALL during maintenance chemotherapy.
- To assess the clinical implications of folate deficiency, including treatment complications and mortality.
- To explore the association between folate deficiency and adverse outcomes in this patient population.
Main Methods:
- Assessed pre-cycle folate levels and deficiency in children with ALL.
- Determined weight-for-age z-scores and serum albumin levels.
- Correlated folate status with treatment complications and mortality during maintenance therapy.
Main Results:
- Folate deficiency was identified in 29 of 52 children during maintenance chemotherapy.
- Folate-deficient children experienced significantly higher rates of neutropenia, thrombocytopenia, febrile neutropenia, and chemotherapy dose reductions.
- Folate deficiency was associated with increased maintenance deaths and lower survival rates, and independently linked to febrile neutropenia and mortality.
Conclusions:
- Folate deficiency is a significant risk factor for treatment complications and adverse outcomes in children with ALL undergoing maintenance chemotherapy.
- The potential benefits and risks of folate supplementation in deficient children require investigation through well-designed randomized trials in similar settings.
Background:
Treatment-related toxicity and mortality are not uncommon during maintenance chemotherapy for childhood acute lymphoblastic leukemia (ALL), especially in the low- and middle-income countries (LMIC). Undernutrition and micronutrient deficiencies are commonly seen in children from LMICs undergoing treatment for ALL. The present study examines the prevalence and clinical implications of folate deficiency in north Indian children with ALL during the maintenance phase of treatment in view of prolonged antifolate treatment and high population prevalence of folate deficiency.
Procedures:
Pre-cycle folate levels/deficiency as well as weight for age z-score and serum albumin level were determined and correlated with complications of treatment and mortality encountered during the maintenance phase of treatment.
Results:
Twenty-nine of 52 children enrolled in the study had folate deficiency at some point during maintenance chemotherapy. Neutropenia (18 of 29 vs. 4 of 23; P = 0.002), thrombocytopenia (17 of 29 vs. 4 of 23; P = 0.005), febrile neutropenia (17 of 29 vs. 4 of 23; P = 0.005), and need for chemotherapy dose reduction (20 of 29 vs. 7 of 21; P = 0.01) were more common in folate-deficient children. Maintenance deaths were higher (8 of 29 vs. 1 of 23; P = 0.03) and survival lower (P = 0.02) in deficient children. In multivariate analysis, hypoalbuminemia (P = 0.02) and folate deficiency (P = 0.01) were associated with febrile neutropenia, and folate deficiency with maintenance deaths (P = 0.03).
Conclusions:
Folate deficiency was associated with treatment-related complications and adverse outcome in our patients. The risks and benefits of folate supplementation in deficient children during maintenance chemotherapy need to be explored with properly designed randomized studies in similar settings.
Related Concept Videos
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
Vitamins
Treatment Resistant Cancers
Role of Hematopoietic Growth Factors
Thrombopoietin (TPO), mainly released by the liver,...
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase

