Pentoxifylline In Pediatric Acute Lymphoblastic Leukemia During Induction

Summary

Recent advances in acute lymphoblastic leukemia treatment are based on a cytotoxic drug combination. Measurement of minimal residual disease in bone marrow samples at day 14 of treatment is the most powerful early predictive indicator of further relapse, and it can be applied practically to all patients with acute lymphoblastic leukemia. Even more so, it has been observed that patients who present negative minimal residual disease in bone marrow samples at day 7 during induction have a better prognosis than those achieving this at day 14.

Relapse represents the main cause of treatment failure that related in the extreme with resistance to apoptosis, defining the latter as the principal mechanism of programmed cell death; it is also related with the induction of leukemic cells to senescent arrest.

Pentoxifylline is a methyl-xanthine byproduct considered an unspecific inhibitor of phosphodiesterase. It inhibits nuclear factor-kappa-beta activation by different mechanisms and stimulates apoptosis induced by different drugs; thus, it can optimize the antineoplastic effect of actual treatments in order to increase the apoptosis of leukemic cells. This effect might improve the prognosis of these patients.

Evaluate the safety and effect of Pentoxifylline together with antineoplastic drugs in order to study increased apoptosis and decreased senescence during the remission induction phase in pediatric patients with newly diagnosed acute lymphoblastic leukemia. To achieve this propose, we will divide patients in two groups, who will receive pentoxifylline or placebo depending on the group, in addition to conventional treatment according to the protocol standard chemotherapy schema for pediatric patients with acute lymphoblastic leukemia at our institution during the remission induction phase. In addition, we will test whether the study group exerts an impact on reaching remission earlier as compared with the control group.

Conditions

• Acute Lymphoblastic Leukemia

Interventions

DRUG

Pentoxifylline Plus Chemotherapy

Pentoxifylline 10 to 20 milligrams per kilogram, daily, for up to 32 days Chemotherapy: Prednisone 40 milligrams per square meter per day, orally, day 5-32. Vincristine 1.5 milligrams per square meter per week, intravenously, day 5, 12, 19, 26. Daunorubicin 25 milligrams per square meter per week, intravenously, days 5; 12. L-asparaginase 10,000 units for square meter, intramuscular, days 6, 8, 10, 12, 14, 16, 19, 21, 23. Cyclophosphamide 1000 milligrams per square meter per dose intravenously, day 26. Cytarabine 75 milligrams per square meter per dose intravenously, days 27-30, 34-37. 6-Mercaptopurine 60 milligrams per square meter per dose, orally, days 26-39, Mix: Methotrexate 8-12 milligrams, Hydrocortisone 16-24 milligrams and Cytarabine 24-36 milligrams, intrathecal, day 19.

DRUG

Placebo Plus Chemotherapy

Placebo daily, for up to 32 days Chemotherapy: Prednisone 40 milligrams per square meter per day, orally, day 5-32. Vincristine 1.5 milligrams per square meter per week, intravenously, day 5, 12, 19, 26. Daunorubicin 25 milligrams per square meter per week, intravenously, days 5; 12. L-asparaginase 10,000 units for square meter, intramuscular, days 6, 8, 10, 12, 14, 16, 19, 21, 23. Cyclophosphamide 1000 milligrams per square meter per dose intravenously, day 26. Cytarabine 75 milligrams per square meter per dose intravenously, days 27-30, 34-37. 6-Mercaptopurine 60 milligrams per square meter per dose, orally, days 26-39, Mix: Methotrexate 8-12 milligrams, Hydrocortisone 16-24 milligrams and Cytarabine 24-36 milligrams, intrathecal, day 19.

Sponsors & Collaborators

• Instituto de Investigacion en Cancer de la Infancia y la Adolescencia

  collaborator UNKNOWN

• Hospital Civil Juan I. Menchaca

  collaborator OTHER

• Centro de Investigacion Biomedica de Occidente

  collaborator UNKNOWN

• Ramón Óscar González-Ramella, Ph.D

  lead OTHER

Principal Investigators

• Ramón O. Gonzalez Ramella, PhD · Instituto de Investigacion de Cancer de la Infancia y la Adolescencia

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Model

PARALLEL

Eligibility

Min Age

1 Year

Max Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2015-01-31

Primary Completion

2019-12-31

Completion

2020-12-31

Countries

• Mexico

Study Locations