Cause of Familial Testicular Cancer
Public ClinicalTrials.gov record NCT00034424. 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.
Official title
Multidisciplinary Etiologic Study of Familial Testicular Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: People with a family history of testicular cancer may be at increased risk for the disease. Genetic and clinical studies of patients with testicular cancer and their family members may help clarify the cause of the disease and identify clinical features. Objectives: To characterize the clinical features of testicular cancer. To identify genes that may lead to increased risk of the disease. To examine emotional and behavioral issues of members of families at increased risk of the disease. Eligibility: Males and females from a family with at least two cases of testicular cancer in blood relatives. Males with testicular cancer in both testicles. Males with testicular cancer who have an identical twin. Participants must be at least 12 years of age. Design: Participants may take part in Part 1 or Parts 1 and 2 of this 2-part study. Part 1 participants: * Provide a blood or cheek cell sample to obtain DNA for gene studies. * Provide permission for researchers to obtain their medical records for review. * Complete questionnaires about their personal and family medical history, exposure to factors that might influence the risk of testicular cancer, and their feelings about being a member of a family in which several members have testicular cancer. * These data are collected from participants in their home communities. Part 2 participants: * All participants provide a medical history, have a complete physical examination, including routine lab tests, and have an ultrasound test of the abdomen to look at the kidneys. * Males have an ultrasound test of the testicles and scrotum. * Females have an ultrasound test of the pelvis to look at the ovaries, uterus and fallopian tubes. * Males 18 years of age and older provide a semen sample. * Some participants have computed tomography (CT) scanning of the chest, abdomen and pelvis instead of kidney ultrasound. Children under 18 years of age may have magnetic resonance imaging (MRI) instead of CT. * These data are collected from participants during a 2-day visit to the NIH Clinical Center in Bethesda, MD. Travel costs are covered by the protocol.
Study identification
- NCT ID
- NCT00034424
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 749 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 12 Years to 77 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 12, 2003
- Primary completion
- Not listed
- Completion
- Not listed
- Last update posted
- Aug 31, 2026
Started 2003
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00034424, 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 Aug 31, 2026 · Synced Sep 12, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00034424 live on ClinicalTrials.gov.