Clinical trial Recruiting at 41 sites Observational

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.

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Quick facts

Study typeObservational
SexAll
Enrollment999999 (estimated)
SponsorCity of Hope Medical Center
Academic / other
Locations42 sites (Phoenix, Arizona and 41 other locations)
StatusRecruiting
StartedApril 18, 1997
Main results expectedAugust 18, 2033
Study endsAugust 18, 2033
Registry record updatedJune 29, 2026
Trial IDNCT04185935 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

  • 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
  • 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

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.