Major gaps exist in patient understanding of genomic test results, Lung-MAP study shows

A majority of cancer patients don’t understand key aspects of the genomic test results they receive as participants in biomarker-driven clinical trials, according to a first-of-its-kind pilot study conducted under the Lung Cancer Master Protocol (Lung-MAP).

In a September 9 presentation at the World Conference on Lung Cancer in Barcelona, Lung-MAP investigator Joshua A. Roth, PhD, MHA will report results of his research conducted as part of Lung-MAP, the first lung cancer precision medicine trial supported by the National Cancer Institute, (NCI) part of the National Institutes of Health (NIH).

Roth, an assistant member of the Hutchinson Institute for Cancer Research Outcomes (HICOR) at the Fred Hutchinson Cancer Research Center, said most patients in his study showed serious gaps in knowledge about the potential uses of gene sequencing results provided in Lung-MAP and other precision medicine trials. In biomarker-driven cancer trials, patients receive genomic testing that detects DNA mutations in cancer cells, known as somatic mutations, which are typically found in tumor tissue samples. Precision trials may also include germline testing, which detects inherited DNA mutations, changes typically detected in blood or saliva.

Both kinds of genetic information are cornerstones of the precision medicine revolution in cancer research. This “precision” approach uses patients’ genetic information to match them to a trial treatment that is more likely to be effective – extending or improving their lives and sparing them from potentially costly and painful treatments that aren’t likely to improve their health.

Among the 123 participants who took part in a 38-item telephone survey devised by Roth, 86 percent correctly knew that their test results would be used to select their treatment regimen on the Lung-MAP trial. Another 83 percent also reported that they received enough information about their tests to understand the benefits of enrolling in the trial.

In Lung-MAP, patients receive somatic testing of mutated cells found in their cancer tumor. They do not get germline testing for inherited mutations. In Roth’s survey, patients were asked about both kinds of tests. Only 9 percent correctly knew that the somatic testing they had could not predict if a family member was at increased risk of getting cancer. And only 12 percent correctly knew that their results can’t predict their own increased risk of getting other diseases.

“Given the public conversation about precision medicine, and the sharp increase in biomarker-driven cancer clinical trials, it’s clear that lot of people don’t really understand these complex trials and the testing that drives them,” Roth said. “We need to learn more about the public’s knowledge gaps so we can fill them.”

Roth’s study is the first to investigate the attitudes on tumor genetic testing in cancer clinical trials. He plans to analyze additional findings from his Lung-MAP study and present those at the 2020 American Society of Clinical Oncology Annual Meeting, held every spring in Chicago.

Lung-MAP is the first major NCI cancer trial to test multiple treatments, simultaneously, under one “umbrella” design. Lung-MAP is also a groundbreaking public-private partnership, one that includes the National Cancer Institute and its National Clinical Trials Network (NCTN) including SWOG Cancer Research Network, Friends of Cancer Research, the Foundation for the National Institutes of Health (FNIH), Foundation Medicine, pharmaceutical companies which provide their drugs for the study, and several lung cancer advocacy organizations.

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Roth’s team also includes Meghna Trivedi, MD, of Columbia University; Stacy Gray, MD, of City of Hope; Donald Patrick, PhD, of University of Washington; Wylie Burke, MD, PhD, of the University of Washington; Deborah Delaney, of Fred Hutchinson Cancer Research Center; Kate Watabayashi of Fred Hutchinson Cancer Research Center; Paul Litwin of Fred Hutchinson Cancer Research Center; Parth Shah of Fred Hutchinson Cancer Research Center; Katherine Crew, MD, from Columbia University; Monica Yee of the SWOG Statistics and Data Management Center; Mary Redman, PhD, from Fred Hutchinson Cancer Research Center; Vali Papadimitrakopoulou, MD, formerly of M.D. Anderson Cancer Research Center; Karen Kelly, MD, of UC Davis Comprehensive Cancer Center; David Gandara, MD, of UC Davis Comprehensive Cancer Center; Dawn Hershman, MD, of NewYork-Presbyterian/Columbia University Irving Medical Center ; and Scott Ramsey, MD, PhD of Fred Hutchinson Cancer Research Center.

Lung-MAP is partly funded by NCI through its Cancer Therapy Evaluation Program. Participating companies are providing significant additional funding to the partnership coordinated by the FNIH. Friends of Cancer Research is also a major partner in the Lung-MAP trial.

About the Foundation for the National Institutes of Health

The Foundation for the National Institutes of Health creates and manages alliances with public and private institutions in support of the mission of the NIH, the world’s premier medical research agency. The Foundation, also known as the FNIH, works with its partners to accelerate biomedical research and strategies against diseases and health concerns in the United States and across the globe. The FNIH organizes and administers research projects; supports education and training of new researchers; organizes educational events and symposia; and administers a series of funds supporting a wide range of health issues. Established by Congress in 1990, the FNIH is a not-for-profit 501(c)(3) charitable organization. For additional information, please visit fnih.org.

About Friends of Cancer Research

Friends of Cancer Research (Friends) drives collaboration among partners from every healthcare sector to power advances in science, policy and regulation that speed lifesaving treatments to patients. For more information, please visit http://www.focr.org.

About SWOG Cancer Research Network

SWOG was founded in 1956, and is a member of the National Cancer Institute’s National Clinical Trials Network and the NCI Community Oncology Research Program, making it part of the oldest and largest publicly funded cancer research network in the United States. SWOG has over 12,000 members in 47 states and six countries who design and conduct cancer prevention and treatment trials. SWOG trials have led to the approval of 14 cancer drugs, changed more than 100 standards of cancer care, and saved more than 3 million years of human life. Learn more at swog.org.

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Wendy Lawton
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