Clinical trial · Observational
Molecular Epidemiology of Childhood Leukemia (Aka The California Childhood Leukemia Study)
Chemical Exposures and Leukemia Risks and Childhood Leukemia and Environmental Exposure
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This study is a case-control study investigating the causes of childhood leukemia in Northern California. The overall purpose of this epidemiologic study is to find specific genetic or environmental factors that may increase the risk of leukemia in children. The study is being conducted by Patricia Buffler, PhD at the School of Public Health - University of California Berkeley in collaboration with the California Department of Health Services and 16 hospitals located throughout the state of California. The study began in 1995 and will continue to 2014.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Acute Lymphoblastic Leukemia | Acute Lymphoblastic Leukemia | ONTOLOGY_EXACT | 0.98 |
| Acute Myelocytic Leukemia | Acute Myeloid Leukemia | ALIAS | 0.90 |
| Acute Myelogenous Leukemia | Acute Myeloid Leukemia | ALIAS | 0.90 |
| Leukemia | Leukemia | ONTOLOGY_EXACT | 0.90 |
Interventions
Interventions (0)
Data not yet available
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- Outcome of study
- timeFrame
- duration of study
- description
- Using a case-control study design, we are studying the role of environmental and genetic factors in the etiology of a rare cancer in a vulnerable and ethnically diverse population, using an integrated multi-disciplinary approach to improve disease classification and exposure assessment.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 1 Day
- Maximum age
- 14 Years
Show eligibility criteria text
Cases must be children ages 0-14 newly diagnosed with leukemia (any type) at one of participating hospitals. They must live in the state of California at diagnosis, never have been diagnosed with a prior cancer and have a parent or guardian that speaks English or Spanish. Controls are matched on the case child's DOB, gender, mother's race, parent's Hispanicity. In order to be eligible, they must have no history of cancer, have a parent or guardian that speaks English or Spanish and they must live in the state of California.
References
Publications (86)
- RESULTXiao Z, Greaves MF, Buffler P, Smith MT, Segal MR, Dicks BM, Wiencke JK, Wiemels JL. Molecular characterization of genomic AML1-ETO fusions in childhood leukemia. Leukemia. 2001 Dec;15(12):1906-13. doi: 10.1038/sj.leu.2402318. PMID 11753612
- RESULTZheng S, Ma X, Buffler PA, Smith MT, Wiencke JK. Whole genome amplification increases the efficiency and validity of buccal cell genotyping in pediatric populations. Cancer Epidemiol Biomarkers Prev. 2001 Jun;10(6):697-700. PMID 11401921
- RESULTMa X, Buffler PA, Gunier RB, Dahl G, Smith MT, Reinier K, Reynolds P. Critical windows of exposure to household pesticides and risk of childhood leukemia. Environ Health Perspect. 2002 Sep;110(9):955-60. doi: 10.1289/ehp.02110955. PMID 12204832
- RESULTMa X, Buffler PA, Selvin S, Matthay KK, Wiencke JK, Wiemels JL, Reynolds P. Daycare attendance and risk of childhood acute lymphoblastic leukaemia. Br J Cancer. 2002 May 6;86(9):1419-24. doi: 10.1038/sj.bjc.6600274. PMID 11986774
- RESULTReynolds P, Von Behren J, Gunier RB, Goldberg DE, Hertz A, Harnly ME. Childhood cancer and agricultural pesticide use: an ecologic study in California. Environ Health Perspect. 2002 Mar;110(3):319-24. doi: 10.1289/ehp.02110319. PMID 11882484
- RESULTReynolds P, Von Behren J, Gunier RB, Goldberg DE, Hertz A, Smith D. Traffic patterns and childhood cancer incidence rates in California, United States. Cancer Causes Control. 2002 Sep;13(7):665-73. doi: 10.1023/a:1019579430978. PMID 12296514
- RESULTWiemels JL, Leonard BC, Wang Y, Segal MR, Hunger SP, Smith MT, Crouse V, Ma X, Buffler PA, Pine SR. Site-specific translocation and evidence of postnatal origin of the t(1;19) E2A-PBX1 fusion in childhood acute lymphoblastic leukemia. Proc Natl Acad Sci U S A. 2002 Nov 12;99(23):15101-6. doi: 10.1073/pnas.222481199. Epub 2002 Nov 1.