Metagenomic Evaluation of the Gut Microbiome in Patients With Lynch Syndrome and Other Hereditary Colonic Polyposis Syndromes

NCT02371135 | Active Not Recruiting

• 1 other identifier: 15-016
• Study Type: observational
• Target: 77
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to understand the role bacteria that normally live in the colon may play in colorectal cancer risk, in addition to the hereditary risk to colorectal cancer. The investigators will collect stool specimens as well as additional colon biopsy specimens during the patient's scheduled colonoscopy procedure. The investigators will also collect a questionnaire about diet and lifestyle. The samples will be used to study the impact of diet on naturally-occurring oral and gut bacteria and their influences on human health including risk of cancer.

Conditions

Lynch Syndrome; Hereditary Colonic Polyposis Syndromes

Keywords

Gut Microbiome; 15-016

Outcome Measures

Primary Outcomes (1)

• association of the gut microbiome and dietary factors (To validate said associations, individual questions from the Brief Diet and Lifestyle Questionnaire will be primarily used in the overall analyses)

  with risk of adenoma or cancer in Lynch syndrome and other hereditary colonic polyposis syndrome patients. To validate said associations, individual questions from the Brief Diet and Lifestyle Questionnaire will be primarily used in the overall analyses.

  2 years

Study Arms (1)

patients having lower endoscopy

At least 2 weeks prior to scheduled lower endoscopy, consented study participants will be mailed a Brief Diet and Lifestyle Questionnaire, a stool collection kit with detailed instructions and a Stool Collection Data Sheet. No more than one week prior to the lower endoscopy but prior to initiation of bowel preparation, the consented participants will provide a stool specimen and fill out the two questionnaires. The routine lower endoscopy will be performed according to routine clinical procedures. Clinical biopsies of suspicious areas and/or lesions will be taken as per standard clinical care with all such tissue samples sent to pathology for routine clinical analysis. For the sole purposes of research, at the routine lower endoscopy, up to 8 additional colonic biopsies will be taken from normal appearing colon mucosa

Genetic: colonic biopsies; Genetic: questionnaires

Interventions

colonic biopsies GENETIC

patients having lower endoscopy

questionnaires GENETIC

patients having lower endoscopy

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Potential research subjects will be identified prospectively within the clinics of the Clinical Genetics and Gastroenterology Services, of MSKCC.

You may qualify if:

• Male or Female age 18 or older
• Hereditary colorectal cancer syndrome with one of the following:
• Lynch syndrome, as defined by the presence of a deleterious germline mutation in the MLH1, MSH2, MSH6, PMS2 or EPCAM genes
• Other hereditary colonic polyposis syndromes, as defined by the presence of a deleterious germline mutation in any one of the following polyposis genes (APC, biallelic MYH, STK11, SMAD4, BMPR1A, or other CRC-risk associated genes at discretion of PI)

You may not qualify if:

• Unable to provide informed consent for testing
• Unable to complete English language questionnaire
• Receiving active chemotherapy
• Having completed active chemotherapy less then 12 months prior to day of scheduled lower endoscopy
• No infectious or drug induced colitis less then 12 months prior to day of scheduled lower endoscopy
• No history of inflammatory colitis (Crohn's disease or ulcerative colitis)

Sponsors & Collaborators

• Memorial Sloan Kettering Cancer Center: lead
• Harvard University: collaborator
• Broad Institute of MIT and Harvard: collaborator

Study Sites (1)

Memorial Sloan Kettering Cancer Center

New York, New York, 10065, United States

Location

Related Links

• Memorial Sloan Kettering Cancer Center

Biospecimen

Retention: SAMPLES WITH DNA

tissue stool

MeSH Terms

Conditions

Colorectal Neoplasms, Hereditary Nonpolyposis

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Colorectal Neoplasms; Intestinal Neoplasms; Gastrointestinal Neoplasms; Digestive System Neoplasms; Neoplasms by Site; Neoplasms; Neoplastic Syndromes, Hereditary; Digestive System Diseases; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases; Genetic Diseases, Inborn; Congenital, Hereditary, and Neonatal Diseases and Abnormalities; DNA Repair-Deficiency Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Data Collection; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Officials

• Zsofia Stadler, MD

  Memorial Sloan Kettering Cancer Center

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 19, 2015
• First Posted: February 25, 2015
• Study Start: February 1, 2015
• Primary Completion (Estimated): February 1, 2027
• Study Completion (Estimated): February 1, 2027
• Last Updated: February 5, 2026

Record last verified: 2026-02

Locations

US (1)