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Published on: October 17, 2025
Feasibility and Policy Implications of a Pragmatically Adapted Pediatric-Inspired Induction Regimen for Adults with
Sadia Qazi1, Hafsa Fayyaz2, Bilal Ahmad3
1Department of Anatomy, College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.
Insights
An adapted pediatric-inspired regimen for adult Acute Lymphoblastic Leukemia (ALL) showed feasibility and favorable outcomes in Pakistan. Challenges in diagnostic capacity and financial protection hinder risk-adapted care.
Area of Science:
- Hematology
- Oncology
- Global Health
Background:
- Pediatric-inspired regimens for Acute Lymphoblastic Leukemia (ALL) face implementation barriers in low- and middle-income countries.
- Diagnostic gaps, unstable procurement, and limited supportive care capacity hinder ALL treatment.
- Adapting regimens is crucial for improving outcomes in resource-restricted settings.
Purpose of the Study:
- To evaluate the feasibility, safety, and affordability of an adapted pediatric-inspired induction regimen for adults with Philadelphia chromosome-negative (Ph(-)) ALL in Pakistan.
- To assess complete remission rates and identify toxicities associated with the adapted regimen.
- To analyze the economic impact and service delivery indicators of the adapted regimen.
Main Methods:
- Prospective single-center cohort study of 200 adults (18-50 years) with newly diagnosed Ph(-)ALL.
- Administered an adapted pediatric-inspired induction regimen.
- Assessed complete remission (CR), early mortality, treatment abandonment, grade 3-4 toxicities, and out-of-pocket diagnostic costs.
Main Results:
- Complete remission (CR) achieved in 83.0% of patients.
- Low rates of early mortality (2.0%) and treatment abandonment (1.5%).
- Significant disparities in diagnostic costs observed, impacting affordability for poorer households.
Conclusions:
- The adapted pediatric-inspired induction regimen is operationally deliverable and yields favorable outcomes in resource-restricted settings.
- Limited diagnostic capacity and lack of financial protection for testing are significant barriers.
- Expanding diagnostic subsidies and stabilizing procurement are key to improving implementation and risk-adapted care.
Abstract:
Background: Acute lymphoblastic leukemia (ALL) requires intensive induction, but implementation of pediatric-inspired regimens in low- and middle-income countries is constrained by diagnostic gaps, procurement instability, and limited supportive-care capacity. We evaluated the feasibility, safety, and affordability of a pragmatically adapted pediatric-inspired induction regimen for adults with Philadelphia chromosome-negative Ph(-) ALL in a Pakistani tertiary hospital. Methods: In this prospective single-center cohort study at the Pakistan Institute of Medical Sciences (December 2024-June 2025), consecutive adults aged 18-50 years with newly diagnosed Ph(-)ALL received an adapted pediatric-inspired induction regimen. The primary outcome was complete remission (CR) after induction, with or without extended induction. Secondary outcomes were early mortality, treatment abandonment, grade 3-4 toxicities, and service delivery feasibility indicators. Affordability was assessed against household income. Results: Among 200 adults (mean age 30.3 ± 8.8 years; 65.5% male), 39.5% presented with WBC ≥ 30 × 109/L and 88.0% with platelets < 50 × 103/µL. CR was achieved in 83.0% of patients. Early mortality was 2.0%, and treatment abandonment was 1.5%. Grade 3-4 toxicities included febrile neutropenia (15.0%) and sepsis (7.5%). The Day-30 evaluability was high (96.5%). Observed out-of-pocket diagnostic costs were USD 119, whereas a guideline-complete diagnostic package would cost USD 929, equivalent to 3-6 months of income for households in the poorest quintile. Conclusions: This adapted pediatric-inspired induction regimen was operationally deliverable in a resource-restricted hospital and produced favorable induction-phase outcomes. Limited diagnostic capacity and a lack of financial protection for testing remain barriers to risk-adapted care. Expanding subsidies for essential diagnostics and stabilizing the procurement of critical agents may yield the greatest implementation gains.
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