Gliogene: Brain Tumor Linkage Study
Public ClinicalTrials.gov record NCT00418899. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The goal of this research study is to investigate the role of genes that may point to a higher risk of developing a glioma. Researchers will use new gene mapping techniques to study how high-risk factors are passed on through a family's genes and increase the risk of developing gliomas. Objectives: We propose an international multi-center, multidisciplinary study consortium, GLIOGENE, to identify susceptibility genes in high-risk familial brain tumor pedigrees using the most sophisticated genetic analysis methods available. To address our hypothesis, we propose the following specific aims: Aim 1: Establish a cohort of 400 high-risk pedigrees for genetic linkage analysis. To date, we have identified and collected biologic samples from 20 high-risk families that have met our criteria of 2 or more relatives diagnosed with a brain tumor. From the 15 centers in the United States and Europe, we will screen and obtain epidemiologic data from approximately 17,080 gliomas cases to identify a target of 400 families for genetic analysis. We will establish a cohort of the first and second-degree relatives from these glioma cases to obtain new knowledge about how cancer aggregates in glioma families. We will also acquire biospecimens (blood and tumor tissue), and risk factor data from relevant family members. Aim 2: Identify candidate regions linked to familial brain tumors. To strengthen evidence of linkage to regions found in our preliminary analysis and to identify additional regions linked to brain tumors, we will genotype informative glioma pedigrees identified in aim 1 using Affymetrix 10K GeneChip with markers spaced throughout the genome, and conduct a genome-wide multipoint linkage scan with these markers. Aim 3: Fine map the regions established in Aim 2 by genotyping selected SNPs from genome databases. We will attempt to further refine the regions identified in Aim 2 to less than 1cM by using approximately 1,500 - 2,000 carefully selected SNPs. The prioritization of regions will be based on a combination of the strength of evidence for linkage from families of various ethnic backgrounds and the presence of obvious candidate genes.
Study identification
- NCT ID
- NCT00418899
- Recruitment status
- Not listed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 17,080 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 12, 2004 (Actual)
- Primary completion
- Sep 1, 2022 (Estimated)
- Completion
- Sep 1, 2022 (Estimated)
- Last update posted
- Dec 31, 2020
2004 – 2022
United States locations
- U.S. sites
- 10
- U.S. states
- 7
- U.S. cities
- 8
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of California Medical Center, San Francisco | San Francisco | California | 94143 | — |
| Moffitt Cancer Center | Tampa | Florida | 33612 | — |
| University of Illinois Medical Center, Chicago | Chicago | Illinois | 60612 | — |
| Evanston NW Healthcare | Evanston | Illinois | 60201 | — |
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
| Mayo Clinic Rochester | Rochester | Minnesota | 55905 | — |
| Memorial Sloan-Kettering Cancer Center | New York | New York | 10065 | — |
| Baylor College of Medicine | Houston | Texas | 77030 | — |
| Texas Children's Hospital | Houston | Texas | 77030 | — |
| University of Texas MD Anderson Cancer Center | Houston | Texas | 77030 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 5 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00418899, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 31, 2020 · Synced Oct 26, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00418899 live on ClinicalTrials.gov.