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A study of clofarabine combination therapy for infant ALL

A multicenter phase II study to evaluate a safety and efficacy of the clofarabine combination chemotherapy for infants with newly diagnosed MLL gene rearranged ALL and an exploratory study for infants with germline MLL gene ALL - MLL-17

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs041190043
Enrollment
42
Registered
2019-06-17
Start date
2019-06-28
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Infant acute lymphoblastic leukemia

Interventions

MLL-rALL(HR): PSL pretreatment(1week) ->Induction therapy R ->Early intensification R(CLARA) ->Interim intensification R(MARMA) ->Re-induction R-I(MAVDAD) ->(Re-induction R-II) ->HSCT(Hematopoietic St

Sponsors

Koh Katsuyoshi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: A patient must meet all of the following criteria in order to be eligible to participate in MLL-17 study: (1) Infants less than 365 days of age at time of diagnosis of acute lymphoblastic leukemia (ALL) (2) Patients with newly diagnosed ALL. (3) A written informed consent of CHM-14 must be obtained prior to the registration of MLL-17. (4) A written informed consent of MLL-17 registration must be obtained from the parents or guardians.

Exclusion criteria

Exclusion criteria: A patient who meets any of the following criteria will be excluded from participation in MLL-17 study: (1) If patients are diagnosed at < 30 days of age, patients gestational age is less than 36 weeks and 0 days. (2) If patients meet any of the following diagnostic criteria: a. T-ALL b. Presence of t(9;22) (q34;q11) or BCR-ABL fusion transcript, c. Presence of t(8;14)(q24;q32), t(2;8)(p13;q24), t(8;22)(q24;q11) or specific fusion transcript associated with mature B-ALL d.Down syndrome associated ALL * Mixed phenotype acute leukemia (MPAL), and acute leukemia of ambiguous lineage (AUL) will be included in this clinical trial. However, the following cases are excluded. a. Cases in which the myeloblast ratio is higher than that of the lymphoblast b. Cases which meet the criteria with T-ALL c. Cases which meet the criteria with lymphoid antigen- positive AML (3) Patients who evaluated as ECOG Performance status (PS) score 4 which modified for infants. (4) Patients with unacceptable severe organ failure. a. Patients with uncontrollable severe cardiac failure b. Patients with uncontrollable severe renal failure c. Patients with respiratory failure who require mechanical ventilation d. Patients with unacceptable severe central nerve system hemorrhage (5) Patients with uncontrollable severe infection. (6) Patients with severe congenital disease or unacceptable complications. (7) Patients with multiple primary cancer. (8) Patients who received different chemotherapy or radiation therapy before registration. (9) Patients who evaluated ineligible by principal physician.

Design outcomes

Primary

MeasureTime frame
3 year event free survival (EFS) rate of MLL rearranged infant ALL

Secondary

MeasureTime frame
(1) Any Grade 5 toxicity (CTCAE ver 4.0) (2) Adverse events occurring during CLARA (Clofarabine and cytarabine chemotherapy) treatment phase which delay more than 4 weeks of next chemotherapy (3) Unacceptable grade 4 severe toxicity during CLARA treatment phase (4) Hematological CR rate and MRD positive rate of timepoint 2 and timepoint 3 (5) Remission rate after induction chemotherapy (6) Time to treatment failure (7) Overall survival period (8) Event free survival (EFS) (9) Cumulative recurrence rates (10) Non-relapse mortality (11) Positive rate of PCR-MRD, FCM-MRD, and NGS-MRD at each timepoint (12) Pharmacokinetic (PK) testing of clofarabine in infants (13) Incidence of clinically relevant toxicities more than grade 3 (CTCAE ver4.0) (14) Treatment completion rate (15) Evaluation of quality of life for patients evaluated by families (16) Complication on 100th day, 1st year, and 2nd year after stem cell transplantation (17) Incidence of severe RSV infection (18) Incidence of invasive fungal infection (19) Incidence of sepsis (20) Incidence of severe viral infection during maintenance therapy (21) Immune function during maintenance therapy (22) Overall survival and event free survival rate according to treatment for patients who showed PCR-MRD positive at TP4 (23) Evaluation of immune function during maintenance therapy (IR) (24)Evaluation of immune function during maintenance therapy (LR) (25) Incidence of silent inactivation of L-asparaginase. (26) OS, EFS and incidence of adverse events related L-asparaginase according to the silent inactivation of L-asparaginase. (27) Correlation of silent inactivation of L-asparaginase and anti-L-asparaginase antibody. (28) Correlation between NUDT15 gene polymorphisms and 3-year EFS (29) Correlation between NUDT15 gene polymorphisms and hematological toxicities (>= grade 3) during maintenancetherapy.

Contacts

Public ContactTakako Miyamura

Nippon medical School Hospital

takako-miyamura@nms.ac.jp+81-3-3822-2131

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026