Genetic studies of cancer patients and their families
Official title: Molecular Genetics Studies of Cancer Patients and Their Relatives
Run by City of Hope Medical Center · NCT04185935 · Data updated 2026-11-12
This study looks at how genetics and family history might affect cancer risk in patients and their relatives to better understand the disease.
Quick facts
| Study type | Observational |
|---|---|
| Sex | All |
| Enrollment | 999999 (estimated) |
| Sponsor | City of Hope Medical Center Academic / other |
| Locations | 42 sites (Phoenix, Arizona and 41 other locations) |
| Status | Recruiting |
| Started | April 18, 1997 |
| Main results expected | August 18, 2033 |
| Study ends | August 18, 2033 |
| Registry record updated | June 29, 2026 |
| Trial ID | NCT04185935 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include individuals with a personal or family history of cancer that suggests an inherited predisposition.
✕Probably not a fit
Patients without a personal or family history of cancer or those not at increased genetic risk may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study investigates the genetic and behavioral factors that may contribute to the development of specific cancers in patients with a history of cancer and their relatives. The primary objectives include identifying rare cancer patients and families with genetic susceptibility to cancer and determining how heredity and biomarkers influence clinical outcomes. Participants will provide various biospecimens, including blood and saliva, and complete questionnaires to gather comprehensive data on their cancer history and family background.
Why it matters
Potential benefit: If successful, this study could enhance understanding of genetic factors in cancer, leading to improved screening and prevention strategies for at-risk individuals.
How similar studies have gone: Other studies have shown success in identifying genetic factors related to cancer, indicating that this approach is promising and builds on existing knowledge.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Individuals must have a personal history of cancer and/or a family history of cancer suggestive of the presence of an inherited predisposition. This inherited predisposition might manifest as: * Young age cancer diagnosis * Multiple primary neoplasms in affected member * The presence of rare tumor types in the family * Congenital malformations * Any other family clustering of cancer * Any other cancer-predisposing genetic diseases/conditions * Individuals may also be eligible by participation in the City of Hope Cancer Screening \& Prevention Program Network (CSPPN) clinical service or on the basis of membership in a group known or suspected to have an increased risk of carrying a genetic alteration or of sustaining a particular exposure that would place that at increased risk of cancer. (Examples would include members of occupational cohorts like asbestos workers, individuals with multiple dysplastic nevi in the absence of a family history of cancer, and individuals descended from a particular tribe in the American Southwest who have an increased incidence of a rare genetic alteration associated with an increased risk of a specific cancer.) * Individuals and families may be referred to us in a number of different ways. After initial contact is made with a individual or family by family studies personnel; an individual within the bloodline will be identified as the historian. There may be more than one historian within a family * At least one historian must be wiling to provide information or access as needed to contact appropriate family members for documentation of cancer and for consent. An individual is considered to be eligible to participate if they criteria; contact with relatives is not always indicated * Individuals who are under 18 are eligible for study if they meet the criteria. Consent for participation must be given by a legal guardian or parent * Deceased patients may be included in the study. Public records, such as death certificates, can be used to confirm information from individuals or family members. If medical records are needed, consent for these records will be obtained from the deceased's next of kin. Next of kin refers to the following hierarchy of relatives; spouse, offspring, parents, and siblings. (Any further use of next of kin in this protocol should relate back to this hierarchy.) Archived tissue samples, such as pathology blocks or snap frozen tumor from a pathology department tumor bank (discard specimens) may be used for genetic research Exclusion Criteria: * A family may be ineligible for study if the historian will not allow access to anyone within the family and thus, the accuracy of the family history cannot be established
Where it's running
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Valleywise Comprehensive Health Center - Phoenix
Phoenix, Arizona, United States Recruiting -
John Muir Medical Center-Concord Campus
Concord, California, United States Recruiting -
City of Hope Medical Center
Duarte, California, United States Recruiting -
Saint Jude Medical Center
Fullerton, California, United States Recruiting -
Saddleback Memorial Medical Center
Laguna Hills, California, United States Recruiting -
USC / Norris Comprehensive Cancer Center
Los Angeles, California, United States Recruiting
Show 36 more locations
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Saint Joseph Hospital - Orange
Orange, California, United States Recruiting -
Sutter Cancer Centers Radiation Oncology Services-Roseville
Roseville, California, United States Recruiting -
Cancer Center of Santa Barbara
Santa Barbara, California, United States Recruiting -
Lynn Regional Cancer Center - West
Boca Raton, Florida, United States Recruiting -
Holy Cross Hospital
Fort Lauderdale, Florida, United States Recruiting -
Kootenai Cancer Center
Post Falls, Idaho, United States Recruiting -
John H Stroger Jr Hospital of Cook County
Chicago, Illinois, United States Recruiting -
Rush University Medical Center
Chicago, Illinois, United States Recruiting -
Mercy Hospital
Cedar Rapids, Iowa, United States Recruiting -
Suburban Hospital
Bethesda, Maryland, United States Recruiting -
Frederick Oncology Hematology Associates
Frederick, Maryland, United States Recruiting -
Steward Saint Elizabeth's Medical Center
Brighton, Massachusetts, United States Recruiting -
Hunterdon Medical Center
Flemington, New Jersey, United States Recruiting -
Lovelace Medical Center-Downtown
Albuquerque, New Mexico, United States Recruiting -
New Mexico Oncology Hematology Consultants
Albuquerque, New Mexico, United States Recruiting -
Presbyterian Kaseman Hospital
Albuquerque, New Mexico, United States Recruiting -
Mount Kisco Medical Group at Northern Westchester Hospital
Mount Kisco, New York, United States Recruiting -
Health Quest Medical Practice PC-Cardio Thoracic
Poughkeepsie, New York, United States Recruiting -
Aultman Health Foundation
Canton, Ohio, United States Recruiting -
Saint Charles Health System
Bend, Oregon, United States Recruiting -
Paoli Memorial Hospital
Paoli, Pennsylvania, United States Recruiting -
Reading Hospital
West Reading, Pennsylvania, United States Recruiting -
The Don and Sybil Harrington Cancer Center
Amarillo, Texas, United States Recruiting -
Doctor's Hospital of Laredo
Laredo, Texas, United States Recruiting -
Covenant Medical Center
Lubbock, Texas, United States Recruiting -
Saint Agnes Hospital/Agnesian Cancer Center
Fond du Lac, Wisconsin, United States Recruiting -
ProHealth Waukesha Memorial Hospital
Waukesha, Wisconsin, United States Recruiting -
Cheyenne Regional Medical Center-West
Cheyenne, Wyoming, United States Recruiting -
Clinica del Country
Bogotá, Cundinamarca, Colombia Recruiting -
Instituto de Cancerologia Las Americas
Medellín, Colombia Recruiting -
University of Guadalajara
Guadalajara, Jalisco, Mexico Recruiting -
Salvador Zubiran National Institute of Health Sciences and Nutrition
Mexico City, Tlalpan, Mexico Recruiting -
Monterrey Institute of Technology-TecSalud
Nuevo León, Mexico Recruiting -
Instituto Nacional de Enfermedades Neoplasicas
Lima, Peru Recruiting -
University of Puerto Rico
San Juan, Puerto Rico Recruiting -
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
Houston, Texas, United States Not yet recruiting
Study contacts
- Principal investigator: Stephen Gruber, MD — City of Hope Medical Center
- Study coordinator: Stephen Gruber
- Email: sgruber@coh.org
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.