Clinical trial · Observational
Validation of a Mouse Model of Pancreatic Carcinogenesis
BRCA1 and BRCA2 Genetic Mutations in Mucinous Versus Nonmucinous Precursor Lesions of the Pancreas: Validation of a Mouse Model of Pancreatic Carcinogenesis
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The primary aim of this study is to determine if mutations of BRCA1 and BRCA2 result in different precancerous pathways to pancreatic ductal adenocarcinoma (PDAC), as suggested in our validated mouse model. Genomic DNA will be isolated on normal tissue obtained from patients who underwent pancreatic resection for PDAC, intraductal papillary mucinous neoplasm (IPMN) or mucinous cystic neoplasm (MCN). Tissue will be examined for the three most common founder mutations in Ashkenazi Jews. In the cases in which BRCA1 or BRCA2 mutations are found, heterozygote normal and abnormal tissue will be examined to look for mutations in the other BRCA1 or BRCA2 allele. The interaction between other cancer causing genes with BRCA1/2 will also be evaluated by comparing the sequences of the other genes in pre-cancerous lesions. We hypothesize that BRCA1- and BRCA2-mediated pancreatic ductal adenocarcinoma progresses through the PanIN route, as seen in both BRCA1 and BRCA2 murine models of pancreatic cancer. We further hypothesize that BRCA1 mutations may enable an additional pre- neoplastic pathway through MCN, and that IPMN may embody yet another pre- neoplastic pathway.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Pancreatic Cancer | Malignant Pancreatic Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (0)
Data not yet available
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- BRCA1 vs. BRCA2 mutations
- timeFrame
- 1 year
- description
- The primary aim is to determine if germline mutations of BRCA1 and BRCA2 result in different pre-neoplastic pathways to pancreatic cancer, as seen in our murine model. Genomic DNA will be isolated on normal tissue obtained from patients who underwent pancreatic resection for pancreatic cancer, IPMN or MCN. Tissue will be genotyped for the three most common founder mutations in Ashkenazi Jews. In the cases in which BRCA1 or BRCA2 mutations are found, heterozygote normal and abnormal tissue will be microdissected to look for loss of heterozygosity at the BRCA1 or BRCA2 allele.
Secondary outcomes (1)
- measure
- Interaction of other cancer genes with BRCA1 and BRCA2
- timeFrame
- 1 year
- description
- The secondary aim is to evaluate the interaction of p53 and K-ras with BRCA1 and BRCA2 by sequencing p53 and K-ras in PanIN as compared to IPMN and MCN lesions.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 80 Years
Show eligibility criteria text
Inclusion Criteria: * Tissue-confirmed diagnosis of pancreatic adenocarcinoma, MCN, or IPMN. * Underwent surgical resection for pancreatic adenocarcinoma, MCN, or IPMN. Exclusion Criteria: * Unwilling to provide informed consent. * Under the age of 18.
References
Publications (0)
Data not yet available