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De-escalated Treatment Approach for Adult Ph-negative Acute Lymphoblastic Leukemia (ALL)

Non-intensive But Non-interruptive Treatment of Adult Ph-negative Acute Lymphoblastic Leukemia With Randomization for Maintenance or Autologous Hematopoietic Stem Cell Transplantation (HSCT) Followed by Maintenance in T-cell ALL Patients

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03462095
Enrollment
350
Registered
2018-03-12
Start date
2017-01-31
Completion date
2022-12-01
Last updated
2018-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Precursor Cell Lymphoblastic Leukemia-Lymphoma

Brief summary

No high-dose methotrexate (MTX) and high-dose cytarabine (ARA-C) consolidation blocks, L-asparaginaseis scheduled for 1 year of treatment, 21 intrathecal injections through the whole treament, T-ALL patients in complete remossion (CR) after the informed consent are randomized to: auto-HSCT vs no auto-HSCT, - with the similar further maintenance. Stem cell harvest is performed after the 3rd consolidation by G-SCF disregarding minimal residual disease (MRD) level. Auto-HSCT is planned after the 5th consolidation phase. All primary bone samples are collected and tested for cytogenetics and molecular markers, all included patients are monitored by flow cytometry by aberrant immunophenotype in a centralized lab.

Detailed description

* 7 days prednisolone prephase * 8 weeks induction with de-escalation of induction chemotherapy: 3 instead of 4 dauno/vncr pulses, 1. instead of 2 Cph injections during induction, 2. instead of 4 ARA-C blocks, distribution of of L-asp injections through all phases * After CR achievement T-cell ALL patients are being randomized to auto-HSCT vs no auto-HSCT * Non-interruptive 5 consolidation phases with dose modification according to WBC and platelets count after CR achievement. Rotation of consolidation is permitted * After the 3rd consolidation stem cells harvesting is carried out for T-cell ALL patients randomized to auto-HSCT * Auto-HSCT after the 5th consolidation phase with non-myeloablative CEAM conditioning * 2 years maintenance for all patients * 21 TIT through the whole treatment with higher intensity during induction\|consolidation * Centralized MRD monitoring at +70 d, + 133 d, + 190 days; before and after auto-HSCT * Allo-HSCT is planned only for very high risk patients (11q23 ALL, MRD positivity at day +190)

Interventions

After the 3rd consolidation, T-cell ALL patients, randomized to auto-HSCT will be mobilised by G-SCF and harvested disregarding MRD-status. After completing the 5th consolidation T-ALL patients will be transplanted after non-myeloablative CEAM (CCNU, Ethoposide, ARA-C, Melphalan) conditioning, and after reconstitution will continue 2-years maintenance

Sponsors

National Research Center for Hematology, Russia
Lead SponsorNETWORK

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* age 18-55 yy, newly diagnosed non-treated Ph-negative ALL

Exclusion criteria

* age \> 55 yy, Ph-positivity, relapsed\|refractory ALL, pretreated ALL

Design outcomes

Primary

MeasureTime frameDescription
Disease-free survival5-yearsImpact of autologous HSCT on DFS in T-cell ALL patients

Secondary

MeasureTime frameDescription
MRD-negativity after consolidation6 monthsMinimal Residual Disease clearance on non-intensive but non-interruptive treatment
Overall survival5-yearsImpact of de-escalated approach on OS

Countries

Russia

Contacts

Primary ContactElena N Parovichnikova, MD,PhD
elenap@blood.ru+79161252623
Backup ContactOlga A Gavrilina, M.D.
dr.gavrilina@mail.ru

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026