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Clinical Trial Summary

QUESTIONS AND OBJECTIVES OF ALL-MB-2008 STUDY

1. Whether the early PEG-asparaginase in induction will lead to the earlier achievement of remission, improvement of days 8 and 15 responses leading to an earlier reconstitution of bone marrow and immunocompetence, decrease of severe infections and early mortality rate?

2. Whether the use of PEG-asparaginase in induction will allow to avoid the anthracyclines in standard risk group patients and to reduce treatment myelotoxicity?

3. Whether the administration of 9 doses of PEG-asparaginase 1,000 U/m2 instead of 18 doses of E.coli L-asparaginase 5,000 U/m2 in standard risk patients will improve treatment outcome?

4. Whether the administrations of high dose methotrexate (2 g/m2 in 24 hours) during 1-st consolidation in intermediate risk patients will result in decrease of central nervous system relapse incidence and improvement of event-free and overall survival? Whether the increase of 6-mercaptopurine starting dose up to 50 mg/m2 in 1-st consolidation phase (instead of 25 mg/m2) will decrease in relapse risk, but would not be accompanied with enhanced toxicity?

5. Is it possible to completely avoid the cranial irradiation in intermediate risk patients? In some subgroup of intermediate risk patients? Is it enough to control neuroleukemia in these patients to introduce additional TIT in the consolidation phase of treatment? How will change the possible late effects in these patients according to the third arm of randomization?

6. Will the new risk group stratification to improve overall and event-free survival?


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT01953770
Study type Interventional
Source Federal Research Institute of Pediatric Hematology, Oncology and Immunology
Contact
Status Active, not recruiting
Phase N/A
Start date February 2008
Completion date July 2020

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