NCT04271215

Brief Summary

Background: Mexico City has one of the highest incidences and mortality rates of acute lymphoblastic leukemia (ALL) in the world and a high frequency of early relapses (17%) and early mortality (15%). Otherwise, childhood overweight and obesity are reaching epidemic proportions. They have been associated with poor outcomes in children with ALL. The aim of present study is to identify if overweight and obesity are prognostic factors associated with survival rates in Mexican children with ALL. Methods: Multicenter cohort study. ALL children younger than 15 years old are included and followed-up. Overweight and obesity are classified according World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC) criteria. Deaths and relapses are the main outcomes.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2010

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2010

Completed
10.1 years until next milestone

First Submitted

Initial submission to the registry

February 11, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 17, 2020

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

July 20, 2022

Status Verified

July 1, 2022

Enrollment Period

12 years

First QC Date

February 11, 2020

Last Update Submit

July 19, 2022

Conditions

Keywords

OverweightObesitySurvivalChildren

Outcome Measures

Primary Outcomes (2)

  • Overall survival

    Deaths of patients occurring during the follow-up period will be collected. The cause of death and the date that this occurred will be also registered. In the case of patients alive at the end of follow-up, the date of the last visit to the hospital will be collected.

    year 5

  • Disease-free survival

    Clinical data and by complementary examinations indicating that there is reappearance of the disease after complete remission has been achieved, presence of blasts \> 5% in bone marrow (bone marrow relapse) or presence of blasts in cerebrospinal fluid fluid (CNS relapse), testicular infiltration by blasts in the biopsy (testicular relapse), combined (bone marrow/CNS) at any time during treatment . In case the patient has relapsed, the site of relapse will be collected (bone marrow, CNS, testicle, ovary, eye, etc.).

    year 5

Study Arms (1)

Overweight/Obesity

BMI at diagnosis will be used. Using WHO software (version 3.2.2, World Health Organization, Geneva), the BMI-for-age Z-scores were calculated for each patient. According to WHO classification, patients were categorized as normal (- 1.9999 to 0.9999), wasted (- 2 to - 2.9999), severely wasted (≥ - 3), at risk of overweight (1-1.9999), overweight (2 to 2.9999) and obesity (≥3). In addition, the BMI percentiles cutoffs provided by CDC were: normal (p5-84.9999), underweight (\< p5), overweight (p85-94.9999), and obese (≥ p95). The nutritional classification and measurements regarding weight and height recorded in clinical files will be used to classify patients' nutritional status in present research has been previously described.

Other: Chemotherapy protocol used

Interventions

Chemotherapy protocol used in each participating hospital

Overweight/Obesity

Eligibility Criteria

Age1 Day - 15 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

The study variables and data will be collected from the clinical files. The information collected by the surveyors will be delivered weekly to our Research Unit, where the field work coordinators will be in charge of assigning them a folio number, reviewing the collection instrument and passing it on to the personnel in charge of capturing the information. In addition, the fieldwork coordinators will supervise the collection of information, the search for files in the archive, the capture of information and will be responsible for keeping the project's database up to date.

You may qualify if:

  • Patients under 15 years of age
  • Newly diagnosed with acute lymphoblastic leukemia
  • Diagnosis confirmation by bone marrow aspiration and immunophenotype
  • Attended in the participating Hospitals.

You may not qualify if:

  • \- Patients with Down Syndrome (for being a population with different disease behavior and cytogenetic alterations than patients without this genetic condition)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Centro Médico Nacional Hospital General La Raza, IMSS

Mexico City, 02990, Mexico

Location

Hospital General Regional Num 1 Carlos McGregor Sánchez Navarro, IMSS

Mexico City, 03103, Mexico

Location

Hospital de Pediatria "Dr. Silvestre Frenk Freund" CMN Siglo XXI, IMSS

Mexico City, 06720, Mexico

Location

Related Publications (1)

  • Nunez-Enriquez JC, Gil-Hernandez AE, Jimenez-Hernandez E, Fajardo-Gutierrez A, Medina-Sanson A, Flores-Lujano J, Espinoza-Hernandez LE, Duarte-Rodriguez DA, Amador-Sanchez R, Penaloza-Gonzalez JG, Torres-Nava JR, Espinosa-Elizondo RM, Flores-Villegas LV, Merino-Pasaye LE, Perez-Saldivar ML, Dorantes-Acosta EM, Cortes-Herrera B, Solis-Labastida KA, Nunez-Villegas NN, Velazquez-Avina MM, Rangel-Lopez A, Gonzalez-Avila AI, Santillan-Juarez JD, Garcia-Velazquez AJ, Jimenez-Morales S, Bekker-Mendez VC, Rosas-Vargas H, Mata-Rocha M, Sepulveda-Robles OA, Martin-Trejo JA, Mejia-Arangure JM. Overweight and obesity as predictors of early mortality in Mexican children with acute lymphoblastic leukemia: a multicenter cohort study. BMC Cancer. 2019 Jul 18;19(1):708. doi: 10.1186/s12885-019-5878-8.

MeSH Terms

Conditions

Precursor Cell Lymphoblastic Leukemia-LymphomaOverweightObesity

Condition Hierarchy (Ancestors)

Leukemia, LymphoidLeukemiaNeoplasms by Histologic TypeNeoplasmsHematologic DiseasesHemic and Lymphatic DiseasesLymphoproliferative DisordersLymphatic DiseasesImmunoproliferative DisordersImmune System DiseasesOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Juan M Mejía-Arangure, PhD

    Instituto Mexicano del Seguro Social/Instituto Nacional de Medicina Genomica

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of the Research Linkage Area

Study Record Dates

First Submitted

February 11, 2020

First Posted

February 17, 2020

Study Start

January 1, 2010

Primary Completion

December 31, 2021

Study Completion

December 31, 2022

Last Updated

July 20, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will not share

The Ethics Committee asked for not making any individual participant data available

Locations