Active clinical trials for "Colorectal Neoplasms, Hereditary Nonpolyposis"

RATIONALE: Gathering medical and family history information from patients and family members may help doctors better understand hereditary colorectal cancer and hereditary polyposis syndrome and identify patients at high risk of developing hereditary colorectal cancer. PURPOSE: This research study is collecting information from patients and family members with hereditary colorectal cancer or polyposis syndrome or who are at high risk of developing hereditary colorectal cancer.

Background: Individuals have varying tolerances for receiving ambiguous information. However, not much is known about how ambiguous genetic testing information is received. Also, not much is known about how at-risk individuals internalize and process these results. More information is needed about how this information affects a person s life. Lynch Syndrome is a genetic condition that carries a high risk of colon cancer and other cancers. Individuals at risk for Lynch Syndrome can have genetic testing for it. The test may confirm a diagnosis and determine actions that can be taken. Results from genetic testing can also affect the perspectives of relatives who might also be affected. However, genetic testing can also produce variants of unknown significance (VUS). VUS are data that may not provide enough information to make decisions. Researchers want to study people who have received a VUS result for genetic testing for Lynch Syndrome. Objectives: - To learn more about the impact and experience of receiving a VUS for Lynch Syndrome genetic testing. Eligibility: - Individuals at least 18 years of age who have recently had a VUS result on a genetic test for Lynch Syndrome. Design: Participants will be asked to answer demographic questions. They will also have a 45- to 60-minute phone interview. During the phone interview, participants will be asked a series of questions about their diagnosis. They will be asked about how they received the result and how they felt right after receiving it. They will also discuss who they have spoken to about the result.

This is an observational, case-control study evaluating the quantitative level of Septin9 in plasma pre- and post-colectomy in hereditary colorectal cancer (CRC) syndrome patients (Familial Adenomatous Polyposis (FAP), Lynch syndrome (also known as HNPCC), and Multiple Adenomatous Polyposis (MAP, also known as MYK/MYH) cases) and genetically related FAP-family members as controls and references.

100 subjects who have a family history of pancreatic cancer (PC), or known genetic syndromes associated with increased risk of pancreatic cancer, will be followed for five years. This data will be used to determine the pancreatic cancer and precancerous lesion detection rate in High Risk Individuals (HRIs). Subjects may agree to annual imaging and annual biomarkers or to biomarkers only.

The aim of this study is to improve clinicians' calculation, interpretation and communication of familial colorectal cancer risk, as well as patients' risk perception and uptake of referral for genetic counselling or for surveillance by colonoscopy for their relatives at risk.

The purpose of this study is to compare two different strategies to implement a new method to identify patients with HNPCC, which appeared cost-effective and feasible. The effectiveness, costs and feasibility of both of the implementation strategies will be assessed.

This study is aiming to enroll 90 patients with genetically confirmed Lynch Syndrome (LS) from Geisinger's High Risk Colorectal Cancer Clinic (HRC). Upon enrollment in the study, a Cologuard test will be ordered and the results will be blinded until data analysis. Patients enrolled in the study will also undergo a colonoscopy as part of their routine HRC visit.

Based on studies of "Inherited Susceptible Genes Among Epithelial Ovarian Cancer" (NCT03015376, clinicaltrials.gov) and "Cohort Study of Universal Screening for Lynch Syndrome in Chinese Patients of Endometrial Cancer" (NCT03291106, clinicaltrials.gov), we provide risk-reducing surgeries of salpingo-oophorectomy with/without hysterectomy for healthy carriers with mutation genes of hereditary ovarian cancer, which is defined ovarian cancer with relevant pathogenic mutations.

This will be a prospective diagnostic trial of screening for prostate cancer among men with genetic predisposition.

Objectives: Specific Aims: Researchers will evaluate and compare predictors of health-related quality of life (QOL) among colorectal cancer (CRC) survivors who have Lynch syndrome (LS) with those patients who have sporadic CRC using both quantitative and qualitative methodology. a. In both CRC groups, researchers will evaluate cancer preventive and health behaviors, including lifestyle factors and screening, psychosocial factors, including mood, family functioning, coping style, anxiety, depression, and social resources, and health care system factors, including interactions with health care providers and service utilization. Researchers will compare the experience of first-degree relatives (FDRs) of patients who have LS with that of FDRs of patients who have sporadic CRC using both quantitative and qualitative methodology. a. Researchers will evaluate all of the domains listed above, as well as anticipatory grief, assessment of caregiving responsibilities, and fear of cancer in FDRs of patients with LS-related and sporadic CRC. Researchers will examine CRC patients from both groups and their FDRs using dyadic analyses in order to evaluate the similarities and differences in their survivorship experience. Researchers will evaluate the preventive and health behavior of patients who are non-conclusive for Lynch syndrome and their family members. They will examine their screening behavior and will explore how the interaction between the patients and their relatives affects the relatives' screening behavior. They also will examine how these non conclusive LS patients and their family members perceive their risk for LS-related cancers.