January 13, 2020
Researchers identify five subtypes of pancreatic cancer, uncovering new opportunities for targeted treatment of the aggressive disease
Toronto – (January 13, 2020) Researchers at the Ontario Institute for Cancer Research (OICR) and the University Health Network (UHN) have discovered detailed new information about the subtypes of pancreatic cancer. A better understanding of the disease groups may lead to new treatment options and improved clinical outcomes for this lethal disease.
The study, published today in Nature Genetics, represents the most comprehensive analysis of the molecular subtypes of pancreatic cancer to date. Through detailed genomic and transcriptomic analyses, the research group identified five distinct subtypes of the disease (Basal-like-A, Basal-like-B, Classical-A, Classical-B, and Hybrid) with unique molecular properties that could be targeted with novel chemotherapies, biologics and immunotherapies.
“Therapy development for pancreatic cancer has been hindered by an incomplete knowledge of the molecular subtypes of this deadly disease,” says lead author Dr. Faiyaz Notta, Co-Leader of OICR’s Pancreatic Cancer Translational Research Initiative (PanCuRx) and Scientist at UHN’s Princess Margaret Cancer Centre. “By rigorously analyzing advanced pancreatic cancers – which is the stage of disease that most patients have when they’re diagnosed – we were able to create a framework. This will help us develop better predictive models of disease progression that can assist in personalizing treatment decisions and lead to new targeted therapies.”
The study is based on data from more than 300 patients with both early stage and advanced pancreatic cancer who participated in COMPASS, a first-of-its-kind clinical trial that is breaking new ground in discovery science and personalized pancreatic cancer treatment. COMPASS is enabled by advanced pathology laboratory techniques at UHN and OICR, and next generation sequencing at OICR.
“Most pancreatic cancer research is focused solely on early stage – or resectable – tumours, but in reality, pancreatic cancer is often found in patients after it has advanced and spread to other organs,” says Notta. “COMPASS allowed us to look into these advanced cancers while treating these patients, develop a better understanding of the biology behind metastatic pancreatic cancer, and shed light on the mechanisms driving disease progression.”
Interestingly, the Basal-like-A subtype, which had been difficult to observe before this study, was linked with a specific genetic abnormality. Most of the Basal-like-A tumours harboured several copies of a mutated KRAS gene, also known as a genetic amplification of mutant KRAS. The research group hypothesizes that some of the subtypes arise from specific genetic changes that occur as pancreatic cancer develops.
“This research opens new doors for therapeutic development,” says Dr. Steven Gallinger, Co-Leader of OICR’s PanCuRx, Surgical Oncologist at UHN and Senior Investigator, Lunenfeld Tanenbaum Research Institute at Mount Sinai Hospital. “We look forward to capitalizing on the promise of these discoveries, building on our understanding of pancreatic cancer subtypes, and bringing new treatments to patients with the disease.”
This research was supported by OICR through funding provided by the Government of Ontario, and by the Wallace McCain Centre for Pancreatic Cancer by the Princess Margaret Cancer Foundation, the Terry Fox Research Institute, the Canadian Cancer Society Research Institute, the Pancreatic Cancer Canada Foundation, the Canadian Friends of the Hebrew University and the Cancer Research Society (no. 23383).
March 6, 2018
VANCOUVER – Canadian pancreatic cancer researchers are joining forces under a Terry Fox initiative bringing new hope for patients with this deadly disease.
“For many years it’s been hopeless from a patient perspective, and we are hoping to help shift this,” says Dr. Daniel Renouf (BC Cancer, University of British Columbia) who, along with Dr. David Schaeffer (UBC, Vancouver General Hospital), is leading a $5-million pan-Canadian, precision medicine initiative recently funded by the Terry Fox Research Institute.
A lack of early detection tests. Few known symptoms. Very limited treatment options. No known biomarkers that can be used to direct therapy. These are among the clinical challenges team EPPIC, short for Enhanced Pancreatic Cancer Profiling for Individualized Care, is tackling over the next five years to improve personalized treatments for patients with pancreatic ductal adenocarcinoma (PDAC), a disease with just a nine per cent five-year survival rate.
January 30, 2018
Early results from COMPASS trial demonstrate benefits of using genomic sequencing to guide treatment for pancreatic cancer
Genomic profiling has allowed physicians to customize treatments for patients with many types of cancer, but bringing this technology to bear against advanced pancreatic cancer has proven to be extremely difficult. OICR’s pancreatic cancer Translational Research Initiative, called PanCuRx, has been conducting a first-of-its-kind clinical trial called COMPASS to evaluate the feasibility of using real time genomic sequencing in pancreatic cancer care. The research team recently reported early results from the trial, which show how they overcame the challenges of genomic profiling specific to pancreatic cancer and gained new insights about the disease.
PanCuRx is focused on improving treatment for pancreatic adenocarcinoma (PDAC), the most common form of pancreatic cancer and the fourth leading cause of cancer death in Canada. The group’s approach centres around understanding the genetics and biology of PDAC to inform the selection of therapies, as well as the development of new treatments.