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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hereditary Nonpolyposis Clear all
Completed Phase 2 Interventional

Hormone Therapy in Preventing Endometrial Cancer in Patients With a Genetic Risk For Hereditary Nonpolyposis Colon Cancer

NCT00033358
View directory record Official record
Conditions
Endometrial Cancer
Interventions
medroxyprogesterone, ethinyl estradiol, norgestrel, laboratory biomarker analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
25 Years to 50 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 2, 2013 · Synced Sep 24, 2026, 5:13 PM EDT
Not listed Not applicable Interventional

Family History Study on Cancer Risk

NCT04145388
View directory record Official record
Conditions
Lynch Syndrome, Colorectal Cancer, Breast Cancer, Ovarian Cancer, Family Characteristics, Genetic Predisposition
Interventions
online cancer risk assessment, Usual care
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
25 Years to 75 Years
Enrollment
18,623 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 24, 2026, 5:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Menstrual Cup for Early Endometrial Cancer Detection in Lynch Syndrome

NCT07220239
View directory record Official record
Conditions
Endometrial Cancer, Lynch Syndrome, Screening, Early Detection of Cancer
Interventions
Menstrual cup use
Device
Lead sponsor
Jessica D. St. Laurent, MD
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Universal Endometrial Cancer DNA Sequencing for Detection of Lynch Syndrome and Personalized Care

NCT03460483
View directory record Official record
Conditions
Endometrial Adenocarcinoma, Endometrial Carcinoma, Lynch Syndrome, Relatives
Interventions
Genetic Counseling, Genetic Testing, Laboratory Biomarker Analysis, Mutation Carrier Screening
Other · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,001 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
9
States / cities
Akron, Ohio • Canton, Ohio • Cincinnati, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 24, 2026, 5:13 PM EDT
Active, not recruiting Not applicable Interventional

Weight Management and Health Behavior Intervention in Lowering Cancer Risk for BRCA Positive and Lynch Syndrome Families

NCT04125914
View directory record Official record
Conditions
Hereditary Breast Carcinoma, Hereditary Ovarian Carcinoma, Lynch Syndrome
Interventions
Behavioral Dietary Intervention, E-mail, Exercise Intervention, Health Promotion and Education, Internet-Based Intervention, Questionnaire Administration, Telephone-Based Intervention
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
384 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Not listed No phase listed Observational

Lynch Syndrome Can be Diagnosed Just From Somatic Mismatch Repair Mutation

NCT04516083
View directory record Official record
Conditions
Cancer Gene Mutation, Lynch Syndrome, Endometrial Cancer, Somatic Mutation
Interventions
Mismatch repair instability somatic and germline testing
Diagnostic Test
Lead sponsor
RWJ Barnabas Health at Jersey City Medical Center
Other
Eligibility
Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Jersey City, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Sep 24, 2026, 5:13 PM EDT
Completed No phase listed Observational

Collecting Information From Patients and Family Members With Hereditary Colorectal Cancer Syndromes or Who Are at High Risk of Developing Colorectal Cancer

NCT00675636
View directory record Official record
Conditions
Colorectal Cancer, Hereditary Non-polyposis Colon Cancer, Precancerous Condition
Interventions
study of socioeconomic and demographic variables, evaluation of cancer risk factors, study of high risk factors
Other · Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
Up to 100 Years
Enrollment
730 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
3
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Sep 24, 2026, 5:13 PM EDT
Recruiting No phase listed Observational

Pancreas Registry and High Risk Registry

NCT02775461
View directory record Official record
Conditions
Pancreas Cancer, Pancreatitis, Chronic Pancreatitis, Pancreatic Cyst, Family History of Pancreas Cancer, Genetic Mutations
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
1,368 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2033
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Study for Imaging the Lower Gastrointestinal Tract Using a Retro-TCE Capsule

NCT07219537
View directory record Official record
Conditions
Lynch Syndrome, Crohn Disease, Inflammatory Bowel Diseases, Healthy
Interventions
Feasibility of using an OCT-based Retrograde Tethered Capsule Endomicroscope device to image the lower GI tract
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Not applicable Interventional

Ohio Colorectal Cancer Prevention Initiative

NCT01850654
View directory record Official record
Conditions
Lynch Syndrome, Colorectal Cancer
Interventions
LS tumor screening, Genetic testing, Genetic Counseling, Biorepository, Questionnaire
Genetic · Behavioral · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3,470 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
49
States / cities
Akron, Ohio • Barberton, Ohio • Batavia, Ohio + 29 more
Source: ClinicalTrials.gov public record
Updated Jun 27, 2018 · Synced Sep 24, 2026, 5:13 PM EDT
Completed No phase listed Observational

National Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions

NCT01322165
View directory record Official record
Conditions
Marfan Syndrome, Turner Syndrome, Ehlers-Danlos Syndrome, Loeys-Dietz Syndrome, FBN1, TGFBR1, TGFBR2, ACTA2 or MYH11 Genetic Mutation, Bicuspid Aortic Valve Without Known Family History, Bicuspid Aortic Valve With Family History, Bicuspid Aortic Valve With Coarctation, Familial Thoracic Aortic Aneurysm and Dissections, Shprintzen-Goldberg Syndrome, Other Aneur/Diss of Thoracic Aorta Not Due to Trauma, <50yo, Other Congenital Heart Disease
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
3,706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
7
States / cities
Honolulu, Hawaii • Baltimore, Maryland • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2016 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Phase 1 Interventional

Phase I-II Multiple-Dose Safety and Efficacy Study of a Selective Inhibitor of Cyclooxygenase - 2 (SC-58635) in Hereditary Non-Polyposis Colorectal Cancer (HNPCC) Patients and Carriers

NCT00001693
View directory record Official record
Conditions
Colorectal Neoplasm, Hereditary Nonpolyposis
Interventions
Celecoxib (SC-58635)
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Overcoming Barriers to the Uptake of Cascade Screening for Lynch Syndrome: Workbook Feasibility Study

NCT04978350
View directory record Official record
Conditions
Lynch Syndrome
Interventions
Educational Workbook
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Sep 24, 2026, 5:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Initial Testing of a Behavioral Intervention About Genetic Services for Families at Risk of Lynch Syndrome

NCT07106359
View directory record Official record
Conditions
Cascade Testing, Lynch Syndrome, Decision Making, Colorectal Cancer, Uterine Cancer, Cancer Prevention
Interventions
Information Letter and Booklet, Information Letter
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Recruiting No phase listed Observational

FITting Non-invasive Tests in Lynch Syndrome Surveillance

NCT06898996
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Fecal immunochemical test
Other
Lead sponsor
University of Chicago
Other
Eligibility
20 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Chicago, Illinois • Ann Arbor, Michigan • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Withdrawn Phase 1 Interventional

Testing the Combination of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) in Children, Adolescent, and Young Adult Patients With Relapsed/Refractory Cancers That Have an Increased Number of Genetic Changes, The 3CI Study

NCT04500548
View directory record Official record
Conditions
Constitutional Mismatch Repair Deficiency Syndrome, Hematopoietic and Lymphoid Cell Neoplasm, Lynch Syndrome, Recurrent Lymphoma, Recurrent Malignant Solid Neoplasm, Recurrent Neuroblastoma, Recurrent Primary Central Nervous System Neoplasm, Refractory Lymphoma, Refractory Malignant Solid Neoplasm, Refractory Neuroblastoma, Refractory Primary Central Nervous System Neoplasm, Xeroderma Pigmentosum
Interventions
Biospecimen Collection, Ipilimumab, Nivolumab
Procedure · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
12 Months to 25 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
7
States / cities
Palo Alto, California • Aurora, Colorado • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Active, not recruiting Not applicable Interventional

Feasibility Study: IGNITE-TX (Identifying Individuals for Genetic Testing & Treatment) Intervention

NCT05677048
View directory record Official record
Conditions
Gynecologic Cancer, Ovary Cancer, Pancreatic Cancer, Breast Cancer, Lynch Syndrome, Hereditary Breast and Ovarian Cancer Syndrome, Colon Cancer, Endometrial Cancer, Uterus Cancer
Interventions
Free genetic testing and counseling group, IGNITE-TX Group, IGNITE-TX and free genetic testing and counseling group
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Combination Chemotherapy With or Without Atezolizumab in Treating Patients With Stage III Colon Cancer and Deficient DNA Mismatch Repair

NCT02912559
View directory record Official record
Conditions
Colon Adenocarcinoma, DNA Repair Disorder, Lynch Syndrome, Stage III Colon Cancer AJCC v8
Interventions
Atezolizumab, Biospecimen Collection, Computed Tomography, Fluorouracil, Leucovorin Calcium, Magnetic Resonance Imaging, Oxaliplatin, Quality-of-Life Assessment
Drug · Procedure · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
12 Years and older
Enrollment
712 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1026
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Phoenix, Arizona + 683 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Completed No phase listed Observational

Psychosocial Aspects of Genetic Testing for Hereditary Nonpolyposis Colon Cancer

NCT00341575
View directory record Official record
Conditions
HNPCC, Hereditary Nonpolyposis Colon Cancer
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 82 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 24, 2026, 5:13 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Energy Balance Interventions in Increasing Physical Activity in Breast Cancer Gene Positive Patients, Lynch Syndrome-Positive Patients, CLL Survivors or High-Risk Family Members

NCT02194387
View directory record Official record
Conditions
Body Mass Index 25 or Greater, BRCA1 Gene Mutation, BRCA2 Gene Mutation, Breast Carcinoma, Cancer Survivor, Chronic Lymphocytic Leukemia, Fatigue, Health Status Unknown, Lynch Syndrome, Ovarian Carcinoma, Overweight
Interventions
Dietary Intervention, Internet-Based Intervention, Laboratory Biomarker Analysis, Questionnaire Administration, Telephone-Based Intervention
Dietary Supplement · Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Using Visual Arrays to Support Understanding of Genetic Risk

NCT06994832
View directory record Official record
Conditions
Decision Aid
Interventions
Visual Array, Narrative Visual Array, Choice, Enhanced Choice
Behavioral
Lead sponsor
Stephanie B. Seminara, MD
Other
Eligibility
18 Years and older
Enrollment
1,045 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 24, 2026, 5:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Preliminary Evaluation of Septin9 in Patients With Hereditary Colon Cancer Syndromes

NCT02198092
View directory record Official record
Conditions
Familial Adenomatous Polyposis, Map Syndrome, Lynch Syndrome, Hnpcc, Colorectal Cancer
Interventions
Epi proColon Testing
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 24, 2026, 5:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Genetic Risk: Whether, When, and How to Tell Adolescents

NCT03421327
View directory record Official record
Conditions
Huntington Disease, Hereditary Breast and Ovarian Cancer, Hereditary Cancer, Hereditary Non-polyposis Colon Cancer, Hereditary Non-Polyposis Colorectal Cancer Syndrome
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
15 Years and older
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Sep 24, 2026, 5:13 PM EDT
Completed Not applicable Interventional Results available

Educational CD-ROM Compared With Standard Informed Consent for Patients With Colorectal Cancer or a Family History of Colorectal Cancer

NCT00450424
View directory record Official record
Conditions
Colorectal Cancer, Hereditary Non-polyposis Colon Cancer
Interventions
counseling intervention, CD-ROM intervention
Other
Lead sponsor
Fox Chase Cancer Center
Other
Eligibility
21 Years and older
Enrollment
239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
3
States / cities
Newark, Delaware • Boston, Massachusetts • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 4, 2014 · Synced Sep 24, 2026, 5:13 PM EDT