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Pentoxifylline In Pediatric Acute Lymphoblastic Leukemia During Induction

Information source: University of Guadalajara
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Acute Lymphoblastic Leukemia

Intervention: Pentoxifylline Plus Chemotherapy (Drug); Placebo Plus Chemotherapy (Drug)

Phase: Phase 2/Phase 3

Status: Recruiting

Sponsored by: Ramón Óscar González-Ramella, Ph.D

Official(s) and/or principal investigator(s):
Ramón O. Gonzalez Ramella, PhD, Principal Investigator, Affiliation: Instituto de Investigacion de Cancer de la Infancia y la Adolescencia

Overall contact:
Monzerrat Pardo Zepeda, MD, Phone: +5213311946817, Email: monzepardo@hotmail.com


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.

Clinical Details


Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Primary outcome: Apoptosis measure by Flow Cytometry

Secondary outcome:

Senescence measure by Flow Cytometry

Safety measure by Common Terminology Criteria for Adverse Events version 4.0

Detailed description: This study will be controlled, double-blind clinical trial versus placebo, with random assignment to evaluate the effect of pentoxifylline on apoptosis and senescence of leukemic blasts from remission induction in pediatric patients with newly diagnosed acute lymphoblastic leukemia, as well as to address pentoxifylline efficacy and safety in this group of patients.


Minimum age: 1 Year. Maximum age: 18 Years. Gender(s): Both.


Inclusion Criteria:

- Pediatric and teenaged patients of both genders ≤18 years of age with newly diagnosed

acute lymphoblastic leukemia in accordance with French-American-British criteria and under immunophenotypical classification and paired within the risk-classification group.

- Patients with ≥20 kg of weight at the time of treatment assignment.

- Patients who are able to swallow the medicine

- Patients agreeing to enter the protocol by the signing of informed consent by the


- Patients who could give their assent to enter the protocol

- The parent or guardian must be able to read.

Exclusion Criteria:

- Patients with treatment adherence of ≥80 percent

- Patients or their parents who decide to abandon the study or who withdraw consent for


- Patients who present grade III or higher adverse event.

- Patients previously treated with chemotherapy and/or radiotherapy

- History of peptic acid disease or gastrointestinal bleeding

- Known pentoxifylline intolerance and general intolerance to xanthine, caffeine or


- Patients in treatment with anticoagulants, Cimetidine, Ciprofloxacin, or Theophylline

- Patients with Down syndrome

- Patients with several bleeding or extensive retinal hemorrhage, several cardiac

arrhythmias (paroxysmal supraventricular tachycardia, congenital atrioventricular block, arrhythmias associated with congenital heart disease, digital poisoning, and patients after cardiac surgery, hypoxia, hypercapnia, and electrolyte disturbances)

- Patients with hypotension

- Several liver failures

- Bleeding diathesis (for bleeding disorders or anticoagulant medication)

Locations and Contacts

Monzerrat Pardo Zepeda, MD, Phone: +5213311946817, Email: monzepardo@hotmail.com

Hospital Civil de Guadalajara "Dr. Juan I. Menchaca", Guadalajara, Jalisco 44340, Mexico; Recruiting
Ramon O Gonzalez Ramella, PhD, Phone: 5213331719826, Email: glezramella@hotmail.com
Fabiola P Medina Barajas, MsD, Phone: 5213313461917, Email: favyri@hotmail.com
Additional Information

Starting date: January 2015
Last updated: May 19, 2015

Page last updated: August 23, 2015

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