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RFC and MTHFR SNPs & hENT1- dCK Expression as Prognostic Factors in ALL & hENT1- dCK Expression as Prognostic Factors in AML

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2013 by DR. MYRNA CANDELARIA, National Institute of Cancerología.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
DR. MYRNA CANDELARIA, National Institute of Cancerología Identifier:
First received: February 28, 2011
Last updated: November 14, 2013
Last verified: November 2013
Results of actual treatment in ALL are not optimal. New prognostic factors, which may determine clinical & molecular response are required. Hyper-CVAD is an internationally accepted schema for such patients. The objective of this pilot study is to evaluate polymorphisms regarding RFC (reduced folate carrier) and MTHFR enzyme, which may affect the function of these proteins, and therefore the intracellular bioavailability of methotrexate. Also, the expression levels of hENT1 and dCK will be evaluated, since such genes codify for citarabine intracellular transport and activation, respectively. Clinical characteristics will be tabulated and analyzed for responders & non-responders patients. Uni- & multivariate analysis will be done to evaluate factors influencing on response and survival.

Acute Lymphoblastic Leukemia. Acute Myeloblastic Leukemia

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Evaluation of RFC Transporter & MTHFR SNP's, as Well as hEN1 and DCK Expression as Prognostic Factors in Patients With Acute Lymphoblastic Leukemia.

Resource links provided by NLM:

Further study details as provided by DR. MYRNA CANDELARIA, National Institute of Cancerología:

Primary Outcome Measures:
  • To evaluate clinical response [ Time Frame: December 2012 ]
    To evaluate clinical response after ending Hyper-CVAD schema for ALL patients. To evaluate clinical response & DFS in relation with hENT1 & dCK expression levels in AML patients.

  • Clinical responses in relation with SNP's or gene expression [ Time Frame: clinical response. ]

Biospecimen Retention:   Samples With DNA
Blood samples.

Estimated Enrollment: 50
Study Start Date: December 2010
Estimated Study Completion Date: December 2015
Estimated Primary Completion Date: December 2014 (Final data collection date for primary outcome measure)
one cohort
Adult patients with ALL attending at the Instituto Nacional de Cancerologia Mexico.


Ages Eligible for Study:   15 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with acute lymphoblastic leukemia

Inclusion Criteria:

  • Age: older than 15 years.
  • Male, female.
  • Normal renal & liver functions.
  • Without previous treatment.
  • Candidate to be treated with hyperCVAD Schema (ALL patients).
  • Candidate to receive induction remission with cytarabine (AML patients)

Exclusion Criteria:

  • Patients not candidate to receive methotrexate or cytarabine.
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Please refer to this study by its identifier: NCT01307241

Instituto Nacional de Cancerologia
Mexico city, DF, Mexico, 14080
Sponsors and Collaborators
National Institute of Cancerología
Principal Investigator: myrna candelaria, md Instituto Nacional de Cancerología Mexico
  More Information

Responsible Party: DR. MYRNA CANDELARIA, Clinical researcher., National Institute of Cancerología Identifier: NCT01307241     History of Changes
Other Study ID Numbers: 010/020/ICI
Study First Received: February 28, 2011
Last Updated: November 14, 2013

Keywords provided by DR. MYRNA CANDELARIA, National Institute of Cancerología:
Acute lymphoblastic leukemia
prognostic factor

Additional relevant MeSH terms:
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Leukemia, Lymphoid
Leukemia, Myeloid, Acute
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, Myeloid processed this record on August 16, 2017