Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT00339300 · ClinicalTrials.gov registry record
A Case-Referent Study of Brain Tumors in Adults
A clinical trial, sponsored by National Cancer Institute (NCI).
- Completed
- Registry status
- 1,581
- Enrollment target
NCT00339300: Completed study, sponsored by National Cancer Institute (NCI).
NCT00339300 is a clinical trial that has completed, run by National Cancer Institute (NCI). The registered enrollment target is 1,581 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00339300 has completed, sponsored by National Cancer Institute (NCI).
- COMPLETED
- Registry status
- 1,581 participants
- Enrollment target
Study Summary
The etiology of brain tumors is poorly understood. Due, in part, to public concern about a postulated relationship between the use of cellular telephones or other increasingly prevalent environmental exposures and the incidence of brain cancer in adults, the National Cancer Institute is collaborating with three U.S. hospitals in a comprehensive case-control study of malignant and benign brain tumors. Factors under consideration include use of cellular phones and other wireless communication devices, workplace exposures to chemical agents and electromagnetic fields, dietary factors, family history of tumors, genetic determinants of susceptibility, home appliance use, reproductive history and hormonal exposures, viruses, medical and dental exposure to ionizing radiation, and other aspects of medical history. Approximately 800 newly diagnosed brain tumor cases and 800 controls have been enrolled at hospitals in Boston, Phoenix and Pittsburgh. Cases include all adults (age greater than or equal to 18 years) newly diagnosed with a histologically confirmed intracranial glioma, intracranial meningioma or acoustic neuroma. Controls are patients admitted to the same hospitals as the cases, and treated for any of a variety of non-malignant conditions. Participating cases and controls were interviewed in the hospital by a research nurse and asked to complete a self-administered questionnaire and donate a sample of blood. Key features of the study include its large size, the emphasis on rapid ascertainment of incident cases and interview of study subjects rather than surrogate respondents, the use of detailed, job-specific questions developed by industrial hygienists to ascertain occupational exposures, and the storage of blood samples for future evaluation of inherited susceptibility, biomarkers of exposure and gene-environment interactions. Implementation of the study protocol proceeded without serious problems. There have been no harmful effects on study participants. Ther
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 1,581 participants |
| Start Date | 1994-08-19 |
| Est. Completion | 2018-02-26 |
What the finished NCT00339300 record still lists
NCT00339300 is an observational study that tracks outcomes without assigning an intervention. Its 1,581 participants enrollment target places it among the larger protocols in the corpus.
The record links to 0 conditions, and to 0 interventions.
NCT00339300 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00339300 about?
NCT00339300 is a clinical study titled "A Case-Referent Study of Brain Tumors in Adults". The etiology of brain tumors is poorly understood. Due, in part, to public concern about a postulated relationship between the use of cellular telephones or other increasingly prevalent environmental exposures and the incidence of brain cancer in adults, the National Cancer Institute is collaboratin...
What is the current status of trial NCT00339300?
This trial is currently completed. The enrollment target is 1,581 participants. The study started on 1994-08-19. Estimated completion is 2018-02-26.
Who is sponsoring clinical trial NCT00339300?
This trial is sponsored by National Cancer Institute (NCI), which has 3,257 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT05483855 · 1,580 participants
Telehealth-delivered HealthcaRe to ImproVe Care
- NCT05552222 · 1,590 participants · Phase 3
A Study of Teclistamab in Combination With Daratumumab and Lenalidomide (Tec-DR) and Talquetamab in Combination With Daratumumab and Lenalidomide (Tal-DR) in Participants With Newly Diagnosed Multiple Myeloma
- NCT06632457 · 1,590 participants · Phase 3
LIVERAGE™ - Cirrhosis: A Study to Test Whether Survodutide Helps People With a Liver Disease Called NASH/MASH Who Have Cirrhosis
- NCT06445946 · 1,572 participants · Phase 4
DECIDE: A Comparative Effectiveness Trial of Metformin Versus Insulin for the Treatment of Gestational Diabetes
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI