Study of the Results of Education and Counseling for Persons Undergoing Genetic Testing for Hereditary Nonpolyposis Colon Cancer
Outcomes in Education and Counseling for HNPCC Testing
RATIONALE: Identifying family and individual characteristics may help plan education and counseling for patients who are considering genetic testing.
PURPOSE: This clinical trial is studying education and counseling to see what effect they have in patients who are undergoing genetic testing for hereditary nonpolyposis colon cancer (recruitment of new families with HNPCC stopped as of 04-26-06, recruitment of persons within families already participating continues).
Descripción general del estudio
Estado
Condiciones
Descripción detallada
OBJECTIVES:
- Identify family characteristics, personality traits, and religious and spiritual beliefs that significantly affect individual decisions regarding mutation testing for hereditary nonpolyposis colon cancer (HNPCC) (recruitment of new families with HNPCC stopped as of 04-26-06, recruitment of persons within families already participating continues).
- Determine the impact of negative vs positive mutation test results on family relationships and psychological status.
- Assess expectations regarding testing and how they influence perceptions of risks and responses to risk notification.
- Determine the impact of risk notification on the frequency of screening/prevention activities.
- Formulate a standard diagnostic algorithm for determining microsatellite instability based on the analysis of tumors with this extensive array of markers and correlate specific replication error phenotypes with germline genotype.
OUTLINE: Participants complete a baseline assessment of knowledge, risk perception, and personality traits followed by a structured pretest education session. Participants are then offered the choice of whether or not to undergo genetic testing for mutations in hereditary nonpolyposis colon cancer (HNPCC) genes. Participants who choose to undergo genetic testing provide a blood sample for this purpose. Participants who undergo genetic testing receive results and counseling (recruitment of new families with HNPCC stopped as of 04-26-06, recruitment of persons within families already participating continues).
Available surveillance options are discussed for all participants. Psychological and behavioral outcomes are reassessed at 6 and 12 months for both those choosing and not choosing genetic testing.
Tumors (when available) are analyzed for mismatched repair deficiency on the basis of microsatellite instability.
PROJECTED ACCRUAL: A total of 900 participants will be accrued for this study, with a specific target of 200 individuals who have not experienced cancer within families identified with hereditary nonpolyposis colon cancer (HNPCC) mutations (recruitment of new families with HNPCC stopped as of 04-26-06, recruitment of persons within families already participating continues).
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Maryland
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Bethesda, Maryland, Estados Unidos, 20892-1182
- Warren Grant Magnuson Clinical Center - NCI Clinical Trials Referral Office
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Bethesda, Maryland, Estados Unidos, 20892-4470
- National Human Genome Research Institute
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
DISEASE CHARACTERISTICS:
Meets one of the following criteria:
Family history consistent with hereditary nonpolyposis colon cancer (HNPCC)*
- At least 3 relatives with histologically proven colorectal cancer or HNPCC-associated cancer and 1 is a first-degree relative of the other 2
- At least 2 successive generations affected
- Colorectal cancer (or HNPCC-associated cancer) diagnosed under age 50 in 1 of the relatives
- Diagnosis of colorectal cancer under age 41
- HNPCC-associated cancer/polyps* under age 41 with a microsatellite instability (MSI) phenotype
- Multiple primary HNPCC-associated cancers* regardless of family history
Colorectal or other HNPCC-associated tumor/polyp* demonstrating a positive MSI phenotype and at least 1 second-degree (or closer) and 1 third-degree (or closer) relative with a HNPCC-associated cancer
1 affected family member must have one of the following:
- Right-sided colon cancer
- Multiple primary HNPCC-associated cancers
- Diagnosis of cancer prior to age 51 NOTE: *Recruitment of new families with HNPCC stopped as of 04-26-06, recruitment of persons within families already participating continues
PATIENT CHARACTERISTICS:
Age:
- 18 and over
Performance status:
- Not specified
Life expectancy:
- Not specified
Hematopoietic:
- Not specified
Hepatic:
- Not specified
Renal:
- Not specified
PRIOR CONCURRENT THERAPY:
Biologic therapy:
- Not specified
Chemotherapy:
- Not specified
Endocrine:
- Not specified
Radiotherapy:
- Not specified
Surgery:
- Not specified
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
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Assessment of cancer risk perception, cancer screening practices, views regarding genetic services, and family communication about HNPCC / Lynch syndrome by family members
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Silla de estudio: Donald W. Hadley, MS, CGC, National Human Genome Research Institute (NHGRI)
Publicaciones y enlaces útiles
Publicaciones Generales
- Hadley DW, Ashida S, Jenkins JF, Calzone KA, Kirsch IR, Koehly LM. Colonoscopy use following mutation detection in Lynch syndrome: exploring a role for cancer screening in adaptation. Clin Genet. 2011 Apr;79(4):321-8. doi: 10.1111/j.1399-0004.2010.01622.x. Epub 2011 Jan 19.
- Hadley DW, Jenkins JF, Dimond E, de Carvalho M, Kirsch I, Palmer CG. Colon cancer screening practices after genetic counseling and testing for hereditary nonpolyposis colorectal cancer. J Clin Oncol. 2004 Jan 1;22(1):39-44. doi: 10.1200/JCO.2004.06.128.
- Hadley DW, Jenkins J, Dimond E, Nakahara K, Grogan L, Liewehr DJ, Steinberg SM, Kirsch I. Genetic counseling and testing in families with hereditary nonpolyposis colorectal cancer. Arch Intern Med. 2003 Mar 10;163(5):573-82. doi: 10.1001/archinte.163.5.573.
- Hadley DW, Eliezer D, Addissie Y, Goergen A, Ashida S, Koehly L. Uptake and predictors of colonoscopy use in family members not participating in cascade genetic testing for Lynch syndrome. Sci Rep. 2020 Sep 29;10(1):15959. doi: 10.1038/s41598-020-72938-z.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- CDR0000067459
- NCI-95-HG-0165
- NCI-NMOB-9501
- NHGRI-95-HG-0165
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