EXOME Analysis Position in the Strategy of Genetic Predisposition Factors Identification in Early-onset Cancer (EX²TRICAN)

  • STATUS
    Recruiting
  • End date
    Oct 10, 2024
  • participants needed
    613
  • sponsor
    Centre Georges Francois Leclerc
Updated on 15 February 2022
breast cancer
primary cancer

Summary

5 to 10% of cancers are due to the presence of a constitutional genetic alteration. It can be inherited from parents (family form) or by accident, in the first moments of life after fertilization (sporadic form). In both cases, this genetic alteration is constitutional and transmissible to descendants. It is hereditary. When an hereditary early form is suspected, several well-known genes generally involved in genetic predispositions to cancer are found by a technique called " gene panel ". However, this analysis does not always identify the genetic predisposing factors for cancer. New techniques called "high-throughput exome sequencing (SHD-E)", allow more than the analysis of the the gene panel. These analysis allow to identify alterations in other genes that could contribute to the development of cancer. The objective of the Extrican study is to show, from patients with early cancer (sporadic or familial form), that this approach to exome sequencing can be effective to identify new genetic risk of cancer, when the first panel analysis of genes is negative.

Description

The main objective of this study is to evaluate the interest of the SHD-E approaches after a negative result of the analysis called " gene panel " tested in routine in order to identify a genetic factor of predisposition to the cancer.

Details
Condition Cancer, Genetic Predisposition
Treatment Blood sample
Clinical Study IdentifierNCT04141462
SponsorCentre Georges Francois Leclerc
Last Modified on15 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Index case
Major or minor patient
Histological or cytological evidence of malignant tumor diagnosis
Patient with cancer before age 40 (or before age 30 for breast cancer)
Absence of anomaly found on the oncogenetic panel tested in the predisposition concerned
Patient affiliated to a social security scheme
Signature of Informed Consent EXTRICAN
Availability of a tumor sample if needed secondary functional studies
Availability of both parents when the trio approach will be necessary in the population 1 (or validation of the indication in CPR in case of non-availability of both parents)
Availability of affected relatives in population 2 (or validation of the indication in SPC in case of non-availability of the related person)
Related
Major or minor patient
Histological or cytological evidence of the diagnosis of malignant tumor if
Patient affiliated to a social security scheme
Signing informed consent EXTRICAN

Exclusion Criteria

Index and related case
Refusal of the patient participation
Psychiatric illness and / or condition of the patient compromising the understanding of the information or the realization of the study
Patient under guardianship, curatorship or safeguard of justice
Pregnant woman
Clear my responses

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