Clinical trial · Observational
Defining the Clinical Utility of EBV Antibody Screening to Identify Individuals Susceptible to Nasopharyngeal Carcinoma (NPC) Within High-Risk, Multiplex NPC Families
Defining Markers of Susceptibility to Nasopharyngeal Carcinoma (NPC) Within High-Risk, Multiplex NPC Families
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): Determined not to be human subject reseach
Summary
Brief summary (as posted)
In an effort to identify genetic factors linked to the development of nasopharyngeal cancer (NPC), the researchers identified and sampled 2,394 individuals from Taiwanese families in which two or more relatives had been diagnosed with NPC. Serum from these individuals was tested for three anti-Epstein-Barr virus (EPV) antibodies associated with elevated risk of NPC. Results indicate that apparently healthy individuals from high-risk families have a nearly threefold elevation in their EBV antibody prevalence compared with the general population. However, the clinical implications of this finding are not yet understood. To clarify the implications, the 2,394 unaffected individuals from the multiplex family study will be invited to participate in the current study. Approximately 1,600 individuals are expected to participate. Participants will have an ear, nose, and throat examination to determine if they have occult or symptomatic NPC. Their levels of EBV antibody at the time of initial recruitment will be correlated with NPC detection in the period between initial recruitment and the present study. Participants will also be asked to complete a brief risk factor questionnaire and to donate blood, saliva, a nasopharyngeal swab, nasopharyngeal tissue, and urine for future studies. Currently, no accepted clinical management protocol exists for screening unaffected members from families at high risk of NPC development. Results from this study have the potential to significantly impact the clinical management and follow-up of individuals with a family history of NPC.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Nasopharyngeal Neoplasms | Nasopharyngeal Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (0)
Data not yet available
Design
Arms and outcomes
Arms (1)
- label
- cohort
- description
- hospital based family cohort
Primary outcomes (1)
- measure
- NPC
- timeFrame
- ongoing
- description
- NPC
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 99 Years
Show eligibility criteria text
* INCLUSION CRITERIA: The 2,394 unaffected family members who previously participated in the family study of nasopharyngeal carcinoma (NPC) in Taiwan between 1996 and 2004.
References
Publications (3)
- BACKGROUNDCohen JI. Epstein-Barr virus infection. N Engl J Med. 2000 Aug 17;343(7):481-92. doi: 10.1056/NEJM200008173430707. No abstract available. PMID 10944566
- BACKGROUNDHsu JL, Glaser SL. Epstein-barr virus-associated malignancies: epidemiologic patterns and etiologic implications. Crit Rev Oncol Hematol. 2000 Apr;34(1):27-53. doi: 10.1016/s1040-8428(00)00046-9. PMID 10781747
- BACKGROUNDZeng Y, Zhang LG, Wu YC, Huang YS, Huang NQ, Li JY, Wang YB, Jiang MK, Fang Z, Meng NN. Prospective studies on nasopharyngeal carcinoma in Epstein-Barr virus IgA/VCA antibody-positive persons in Wuzhou City, China. Int J Cancer. 1985 Nov 15;36(5):545-7. doi: 10.1002/ijc.2910360505. PMID 4055129