Markers for Predicting Risk of Breast Cancer in Women of Different Races
Molecular Markers for Predicting Risk of Developing Breast Cancer in Different Ethnicities
Aperçu de l'étude
Description détaillée
Evidence suggests that, besides reduced access to care, the increase in breast cancer incidence and mortality in AA (African American) compared to EA (European American or Caucasian) women is influenced by the biology of the tumor. Gene methylation changes caused by environmental factors starting at birth is one mechanism through which genetic and non-genetic factors could affect development of breast cancer and which could underlie disparities in aggressiveness. The investigators were the first to show that a panel of genes was hypermethylated specifically in AA-ER-negative tumors in young women in comparison to EA-tumors in women of the same age. Gene promoter methylation is found at low levels in healthy breast tissues from women without cancer. Race and family history of cancer increase the likelihood of these early events. Thus, epigenetic changes may be early events in transformation of breast cells and tumor formation.
This study will enroll women from different ethnic backgrounds undergoing mastectomy in order to collect normal and tumor tissue to study these genetic changes and breast cancer risk.
Type d'étude
Contacts et emplacements
Lieux d'étude
-
-
Maryland
-
Baltimore, Maryland, États-Unis, 21287-0013
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Women
- 18 years and older
- Histologically proven infiltrating carcinoma of the breast on diagnostic biopsy. NOTE: Individuals planning bilateral mastectomy procedures (for either bilateral cancers or contralateral prophylactic procedures) either at the same time or in the future will be asked to have tissue removed for the study from both breasts.
- ER-negative, any PR status, and any HER2 status (i.e., ER-, PR any, HER2- or ER-, PR any, HER2+; "triple positive" breast cancers are not eligible).
- Unresected, untreated breast cancer planning surgical management with mastectomy (with or without axillary nodal evaluation/dissection and/or with any other clinical assessment).
- Willing and able to sign an informed consent form
Exclusion Criteria:
- None.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Surgery
Women undergoing mastectomy are eligible for enrollment.
|
Unilateral breast cancers planning bilateral mastectomy procedures.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
|
Genetic changes in cells taken from the breasts of women undergoing mastectomy
Délai: Time of surgery
|
Time of surgery
|
Collaborateurs et enquêteurs
Collaborateurs
Les enquêteurs
- Chaise d'étude: Saraswati Sukumar, Ph.D., SKCCC at Johns Hopkins
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Anticipé)
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- J1585
- IRB00059654 (Autre identifiant: JHMIRB)
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .