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Family Study of Head and Neck Cancers in Taiwan

NCT00342147 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 3795

Last updated 2020-12-11

No results posted yet for this study

Summary

Nasopharyngeal carcinoma is a rare tumor among Caucasians which occurs with high incidence among individuals of Chinese descent. The disease is believed to have a multifactorial etiology with genetic, viral, and other environmental factors being involved. Little is known, however, about the genetic component of this disease.

We have recently completed subject recruitment for a case-control study of NPC in Taiwan. Using information obtained from the NPC cases recruited into this NCI-sponsored case-control study as well as from a parallel cross-sectional study conducted by our Taiwanese collaborators, we have been able to identify 120-150 families with multiple family members affected with NPC.

The purpose of the study described herein is to determine the role of inherited genetic factors in the etiology of NPC and to examine the effect of these genetic susceptibility factors on risk associated with environmental exposures.

Families will initially be contacted via the proband who previously participated in our case-control and cross-sectional studies. Subsequently, informative family members will be asked to visit the study clinic to participate in the study. A family history questionnaire will be administered to the proband from each of the families selected for study. In addition, a risk factor questionnaire will be administered to all participating family members, and 30-40 ml of blood and an oral sample will be obtained from each study participant. Additional study components include medical record review to verify the diagnosis of NPC, retrieval of tumor tissue blocks as a source of DNA for study, and clinical exams on a sample of unaffected individuals to exclude the possibility of prevalent, undetected disease among family members.

Oral and laryngeal cancer families will also be recruited in a manner similar to that described for NPC families, in an attempt to elucidate genetic factors linked to the development of these two cancers....

Conditions

  • Nasopharyngeal Neoplasms
  • Herpesvirus 4, Human

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    lead NIH

Principal Investigators

  • Allan Hildesheim, Ph.D. · National Cancer Institute (NCI)

Eligibility

Min Age
18 Years
Max Age
99 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1995-11-07
Primary Completion
2020-05-31
Completion
2020-06-05

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00342147 on ClinicalTrials.gov