Update: Genetic causes of hereditary pancreatic cancer: BRCA and beyond
Summary
An update on hereditary pancreatic cancer presented at the annual American Society of Clinical Oncology meeting covered genes and lifetime risk. The update emphasized that all pancreatic cancer patients should be offered genetic counseling and testing. Genetic test results may impact treatment, screening for other cancers and risk to family members. (11/26/19)
Relevance
This article is most relevant for People diagnosed with pancreatic cancer
Relevance: High
Research Timeline: Post Approval
Contents
| At a glance | Clinical trials |
| Beyond | Guidelines |
| Genes associated with pancreatic cancer | Questions to ask your doctor |
| What does this mean for me? | Resources and references |
UPDATE AT A GLANCE
This update is about:
Inherited mutations in pancreatic cancer genes and the importance of identifying patients who have them.
Why is this update important?
Between 10–20 percent of all pancreatic cancer is thought to be due to an .
- About 3-10 percent of people with pancreatic cancer have a family history of the disease.
- Inherited mutations in and are the most common cause of familial pancreatic cancer. Together, about 6 percent of all pancreatic cancer patients have an in or .
- Almost 14 percent of people with pancreatic cancer have a mutation.
- Studies looking at patients who do not have a family history of pancreatic cancer have found that 4-11 percent have an in a gene associated with pancreatic cancer.
Beyond
Genetic panel testing, which looks for mutations in many genes at one time rather than just 1 or 2 at a time, has become more widespread in recent years and has led to a better understanding of which genes contribute to hereditary pancreatic cancer. Genes that are generally included in panel testing include , , , CDKN2A, , , , , and .
Of these genes, panel testing has shown that:
- Mutations in are found in 2-3 percent of pancreatic cancer cases.
- Mutations in genes (, , , and ) are found in <1 percent of cases.
- Mutations in other genes (CDKN2A, , and ) are found in fewer than < 1 percent of cases.
One study found that 17 percent of patients with a family history of pancreatic cancer who had panel testing had an , suggesting the importance of family history. Being diagnosed at a younger age was also associated with an increased likelihood of having a mutation.
Genes associated with hereditary pancreatic cancer and risk
The lifetime risk for pancreatic cancer in the general population is 1.6 percent. The general population includes people with and without mutations. People with the following mutations had an increased risk for pancreatic cancer compared to people without a mutation.
| Gene | Increase in Pancreatic Cancer Risk Compared to Someone Without the Mutation |
Other Associated Cancers |
|---|---|---|
| Unclear | Breast | |
| 2-4 times | Breast, ovarian, | |
| 3-8 times | Breast, ovarian, , melanoma | |
| CDKN2A | 13-22 times | Melanoma |
| , , , , () |
Up to 9 times | Colorectal, endometrial (uterine), ovarian, |
| Unclear | Breast | |
| () | 132 times | Breast, gastrointestinal, gynecological |
Source: Robert Pilarski, MS, LGC, MSW, LSW, ASCO June 2019
Summary:
In addition to mutations in and , numerous other inherited mutations increase the risk of pancreatic and other cancers. The National Comprehensive Cancer Network (NCCN) now recommends that all pancreatic cancer patients be offered genetic testing and counseling to determine whether they have inherited a . Those who test positive for an may be eligible for different treatment options, such as PARP inhibitors or immunotherapies, and they may require screening for additional cancers. They may also need to alert their family members to the increased risks of certain cancers. Finally, the identification of mutations may make a patient eligible for specific clinical trials that are looking at targeted therapies for carriers of particular mutations.
What does this mean for me?
If you have been diagnosed with pancreatic cancer, you should speak with your health care provider about receiving genetic counseling and testing to determine if you might carry an inherited mutation in a gene that is associated with hereditary pancreatic cancer. The results may be important for your treatment (including enrollment in clinical trials) and for your family.
If you have a family history of pancreatic cancer, you should speak with a health care provider about referral for genetic counseling and testing.
If you do not have pancreatic cancer but you know that you carry an inherited mutation in a relevant gene (see the table in this article) and you meet the screening guidelines outlined here, you should speak to your health care provider about receiving annual screening for pancreatic cancer.
Conclusions:
Inherited mutations in a number of genes are associated with increase pancreatic cancer risk. It is important that people with pancreatic cancer are offered genetic testing and counseling to determine if they carry a in one of these genes, as the results can impact treatment decisions, screening and risk management for other cancers, and family members’ risk. It is also important that people without pancreatic cancer but with an in a known pancreatic cancer risk gene are aware of screening guidelines and receive screening as appropriate.
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This article is relevant for:
People diagnosed with pancreatic cancer
This article is also relevant for:
people with a genetic mutation linked to cancer risk
people newly diagnosed with cancer
people with pancreatic cancer
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Expert Guidelines
National Comprehensive Cancer Network (NCCN) Guidelines
The NCCN recommends the following for people at increased risk for pancreatic cancer:
- Discuss the benefits and risks of screening with their doctor. Screening should be performed by a facility that is experienced with pancreatic cancer screening. The recommended age for considering screening depends on a person’s family history of pancreatic cancer and varies by type of gene mutation.
- Consider screening with magnetic resonance cholangiopancreatography (MRCP) and/or endoscopic (EUS).
- Consider participating in a pancreatic cancer screening study.
The NCCN recommends that people with inherited mutations in the following genes (with or without a family history of cancer) "consider pancreatic cancer screening" with MRCP or EUS:
- (): Consider pancreatic cancer screening every 1-2 years, beginning at ages 30-35 or 10 years younger than the earliest pancreatic cancer in the family.
- CDKN2A: Consider pancreatic cancer screening beginning at age 40 or 10 years earlier than the earliest pancreatic cancer diagnosis in the family.
- and : Consider pancreatic cancer screening beginning at age 50 or 10 years earlier than the youngest case of pancreatic cancer in the family.
NCCN guidelines recommend that people with an in , , , , , , or and a family history of cancer "consider pancreatic cancer screening" with MRCP or EUS, beginning at age 50 or 10 years earlier than the earliest pancreatic cancer diagnosis in the family.
The NCCN does not currently recommend pancreatic cancer screening for people with the above mutations who do not have a family history of cancer.
American Society for Gastrointestinal Endoscopy (ASGE) Guidelines
In February 2022, the ASGE released updated guidelines on pancreatic cancer screening for people with a or mutation. These guidelines recommended:
- All patients with a mutation, regardless of a family history of pancreatic cancer, should undergo annual screening for pancreatic cancer with MRI/MRCP or EUS, beginning at age 50 or 10 years earlier than the earliest pancreatic cancer in the family.
Updated: 10/23/2024
Expert Guidelines
National Comprehensive Cancer Network guidelines reccomend genetic counseling and testing for anyone diagnosed with pancreatic cancer, using a comprehensive gene panel for .
Updated: 12/04/2021
Questions To Ask Your Doctor
- Should I have genetic testing for an ?
- I had genetic testing in the past, should I have additional testing?
- Should I have pancreatic cancer screening?
- Will my insurance pay for pancreatic cancer screening?
Open Clinical Trials
The following studies are looking at risk management for pancreatic cancer:
- NCT04970056: Pancreatic Cancer Early Detection for People at High Risk (PRECEDE). The study will collect clinical information, family history and samples (blood, saliva or cheek swab) from people and families at risk for pancreatic cancer.
- NCT02000089: Pancreatic Cancer Screening Study (CAPS5). The CAPS5 study is looking at screening for early cancer in people with an elevated lifetime risk of developing pancreatic cancer who are undergoing screening with endoscopic , MRCP or .
- NCT03250078: A Pancreatic Cancer Screening Study in Hereditary High-Risk Individuals. The main goal of this study is to screen and detect pancreatic cancer and precursor lesions in individuals with a strong family history or genetic predisposition to pancreatic cancer. Magnetic Resonance Imaging and Magnetic Cholangiopancreatography (MRI/MRCP) will be utilized to screen for pancreatic cancer or precursor lesions.
- NCT02478892: Preliminary Evaluation of Screening for Pancreatic Cancer in Patients With Inherited Genetic Risk. This , observational study is evaluating the utility of endoscopic or for the identification of preneoplastic and neoplastic pancreatic lesions in patients at high risk for pancreatic cancer, specifically those with BRCA1/2, or mutations.
- NCT03568630: Blood Markers of Early Pancreas Cancer. Identifying biomarkers of early pancreatic ductal () could facilitate screening for individuals with higher-than-average risk, expedite the diagnosis in individuals with symptoms and substantially improve an individual's chance of surviving the disease.
- NCT03250078: A Pancreatic Cancer Screening Study in Hereditary High-Risk Individuals. The goal of this study is to screen for pancreatic cancer in individuals with a strong family history or genetic risk using Magnetic Resonance Imaging and Magnetic Cholangiopancreatography (MRI/MRCP).
Other clinical trials for pancreatic cancer screening and prevention may be found here.
Updated: 10/23/2024
Open Clinical Trials
The following treatment studies are enrolling people diagnosed with pancreatic cancer.
- NCT04548752: Adding Pembrolizumab to to Treat Pancreatic Cancer in People with an Inherited Mutation. This study researches whether adding the drug pembrolizumab to the olaparib works better than alone for treating pancreatic cancer in people with an inherited or mutation.
- NCT05252390: NUV-868 Alone and in Combination With PARP Inhibitors in Patients With Advanced . This study tests the safe and effectiveness of the experimental drug NUV-868 alone and in combination with a in people with different types of advanced cancers.
- NCT04493060: Treating Pancreatic Cancer with an Inherited or Tumor BRCA1/2 or Mutation with and Dostarlimab. This study looks at how well the and the drug dostarlimab work together for treating patients with pancreatic cancer and an inherited or tumor mutation in , , , , or .
- NCT04150042: SHARON: A Clinical Trial for Cancer With an Inherited or Mutation Using Chemotherapy and Patients’ Own Stem Cells. This study looks at whether melphalan, BCNU, vitamin B12b and vitamin C followed by autologous (self) bone marrow stem cell infusion is safe and effective for treating patients with advanced pancreatic cancer or 4, breast cancer for people with a , or .
- NCT04666740: Pembrolizumab and for Pancreatic Cancer with or Exceptional Response to Platinum Chemotherapy. This study compares the combination of the pembrolizumab and the olaparib to alone. It enrolls pancreatic cancer with an HRD-positive tumor test or disease that has responded well to or second-line platinum therapy.
- NCT04858334: or in Patients with Surgically Removed Pancreatic Cancer who have a , or Mutation (APOLLO). This study compares the usual approach (observation) to treatment for one year with in patients with a , or mutation.
- NCT04550494: Treating Solid Tumors with an Inherited or Acquired Gene Mutation Using the Talazoparib. This study looks at the safety and effectivenss of the drug for treating people with advanced breast, gastric, ovarian, pancreatic or other cancers with an or an acquired mutation in certain repair genes, such as , , , , and others.
The following vaccine studies are enrolling people with pancreatic cancer.
- NCT05111353: Neoantigen Vaccines in Pancreatic Cancer in the Window Prior to Surgery. This study looks at the safety of an neoantigen vaccines for pancreatic cancer patients following chemotherapy. Participants receive either the vaccine following by chemotherapy and surgery or the vaccine after chemotherapy and before surgery.
Other clinical trials for people with pancreatic cancer can be found here.
Updated: 08/15/2023
Open Clinical Trials
The following studies are looking at treatment for people with advanced .
- NCT05252390: NUV-868 Alone and in Combination With PARP Inhibitors in Patients With Advanced .This study will test the safety and effectiveness of the experimental drug NUV-868 alone and combined with a in people with advanced . This study is open to people whose cancer stopped responding or progressed on PARP inhibitors.
- NCT02264678: Ascending Doses of Ceralasertib in Combination With Chemotherapy and/or Novel Anti Cancer Agents. This is a study of ceralasertib administered orally in combination with chemotherapy regimens and/or novel anticancer agents to patients with advanced cancer. The study is enrolling people with inherited mutations, including , , , , , and people with tumors that are HRD-positive.
- NCT04644068: Study of AZD5305 as Monotherapy and in Combination With Anti-cancer Agents in Patients With Advanced Solid Malignancies (PETRA). This research is designed to learn whether treatment with a new , AZD5305, used alone or in combination with anti-cancer agents is safe, tolerable and has anti-cancer activity in patients with advanced . The study is open to people who have previously been treated with PARP inhibitors.
- NCT04267939: ATR Inhibitor Plus Study in Advanced and Ovarian Cancer. This study will look at how well people with advanced respond to treatment with the BAY1895344 in combination with the . This study is open to people with inherited mutations in , , and other genes. Contact the study coordinator for information about eligibility for people with mutations in other genes.
- NCT04657068: Treatment with ATR Inhibitor for Advanced or Solid Tumors. This study will look at how well a new oral known as an ATR inhibitor works on advanced or with mutations in genes that are linked to damage repair. This study is open to people who have an inherited or acquired or mutation or whose tumors are HRD-positive. This study is open to people whose cancer stopped responding or progressed on PARP inhibitors.
Updated: 02/01/2024
Peer Support
The following organizations offer peer support services for people with or at high risk for pancreatic cancer:
- FORCE peer support
- Our Message Boards allow people to connect with others who share their situation. Once registered, you can post on the Diagnosed With Cancer board to connect with other people who have been diagnosed.
- Peer Navigation Program will match you with a volunteer who shares your mutation and situation.
- Private Facebook Group
- Virtual and in-person support meetings
- Join a Zoom community group meeting.
- LGBTQIA
- Men
- American Sign Language
- People of Color
- PanCAN
- Let's Win PC
- The Healing NET Foundation is a nonprofit organization for people with neuroendocrine cancers.
- The Neuroendocrine Cancer Awareness Network (NCAN) is a non-profit organization dedicated to raising awareness of neuroendocrine cancer and providing support for caregivers and people with NETs.
Updated: 08/23/2022
Related Resources
Related Resources
The following resources may be helpful for people with pancreatic cancer.
- FORCE resources:
- Information: Pancreatic cancer screening
- Information: Pancreatic cancer treatment
- XRAY category: Pancreatic cancer
- Video: Should I Get Pancreatic Cancer Screening?
- Video: What's New in Pancreatic Cancer Treatment?
- Video playlist: Pancreatic cancer
- Blogs: Pancreatic cancer
- The following resources from other organizations are for people who have been diagnosed with pancreatic cancer:
- Let's Win PC is a nonprofit organization that enables doctors, scientists and patients to share fast-breaking information on potentially life-saving pancreatic cancer treatments and clinical trials.
- The Healing NET Foundation is a nonprofit organization for people with neuroendocrine cancers.
- The Neuroendocrine Cancer Awareness Network (NCAN) is a non-profit organization dedicated to raising awareness of neuroendocrine cancer and providing support for caregivers and people with NETs.
Updated: 09/18/2024