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Clinical Trial Summary

This is a multicenter, observational real world clinical trial with prospective follow up that will evaluate the treatment outcome of adolescent and young patients with ph-negative acute lymphoblastic leukemia with first-line pediatric-like protocol in Argentina.

Clinical Trial Description

The purpose of this trial is to gather real world evidence of treatment outcomes and toxicities of AYA Ph-negative ALL patients in Argentina who receive pediatric-like treatment in first line. The study primary endpoints are to evaluate survival (event free survival and overall survival) and toxicities of AYA Ph-negative ALL patients treating in first line with pediatric-like protocol depending on risk category. Secondary endpoints are to evaluate survival in patients who underwent allogeneic transplantation in first remission, asparaginase toxicities, and assess central cerebrospinal fluid by flow cytometry. Every ALL patient diagnosed in our institutions will follow our guidelines with respect to diagnosis procedures. High-risk (HR) group was defined as presenting high risk cytogenetics/molecular findings and depending on the response achieved at different time points: bad response to prednisone at day 8, ≥ 10% blast in bone marrow on day 15, minimal residual disease (MRD) by flow cytometry ≥0.1% at day 33 and ≥0.01% at day 78 in bone marrow. No-high risk group was defined as those without any high-risk factor. The chemotherapy regimen included pre-induction phase, induction (phase I and II), consolidation, re-intensification, central nervous system (CNS) prophylaxis and maintenance therapy or ASCT in first remission . The initial pre-induction phase, where steroids were given for 7 days. Induction therapy, phase IA consisted of weekly vincristine and daunorubicin for 4 weeks, L-Asparaginase for 8 doses or peg-asparaginase for 2 doses and prednisone continuously for 4 weeks. Phase IB consisted cytarabine for 16 doses, cyclophosphamide for 1-2 doses and 6-mercaptopurine for 28 days. The consolidation phase consisted of 4 doses of methotrexate and 6-mercaptopurine for 56 days for Non-High Risk patients (M phase) and two cycles of three different blocks of high dose multi chemotherapy for HR patients. Re-induction consisted in two phases similar to induction. According to risk and response to treatment, patients will be candidates to maintenance for 18 months or ASCT in first remission. Minimal residual disease will be evaluated at least on day 33, 78, in consolidation and every thee months during maintenance treatment or previous to ASCT. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05127148
Study type Observational [Patient Registry]
Source Grupo Argentino de Tratamiento de la Leucemia Aguda
Contact Luciana Ferrari, Dr.
Phone 541148771000
Email [email protected]
Status Recruiting
Start date March 1, 2021
Completion date December 1, 2026

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