Learn how GA4GH helps expand responsible genomic data use to benefit human health.
Learn how GA4GH helps expand responsible genomic data use to benefit human health.
Our Strategic Road Map defines strategies, standards, and policy frameworks to support responsible global use of genomic and related health data.
Discover how a meeting of 50 leaders in genomics and medicine led to an alliance uniting more than 5,000 individuals and organisations to benefit human health.
GA4GH Inc. is a not-for-profit organisation that supports the global GA4GH community.
To guide our collaborative, globe-spanning alliance, GA4GH relies on a Standards Steering Committee and an Executive Committee.
The Funders Forum brings together organisations that offer both financial support and strategic guidance.
The EDI Advisory Group responds to issues raised in the GA4GH community, finding equitable, inclusive ways to build products that benefit diverse groups.
Distributed across four Host Institutions, our staff team supports the mission and operations of GA4GH.
Curious who we are? Meet the people and organisations across six continents who make up GA4GH.
More than 500 organisations connected to genomics — in healthcare, research, patient advocacy, industry, and beyond — have signed onto the mission and vision of GA4GH as Organisational Members.
These core Organisational Members are genomic data initiatives that have committed resources to guide GA4GH work and pilot our products.
This subset of Organisational Members whose networks or infrastructure align with GA4GH priorities has made a long-term commitment to engaging with our community.
Local and national organisations assign experts to spend at least 30% of their time building GA4GH products.
Anyone working in genomics and related fields is invited to participate in our inclusive community by creating and using new products.
Wondering what GA4GH does? Learn how we find and overcome challenges to expanding responsible genomic data use for the benefit of human health.
Study Groups define needs. Participants survey the landscape of the genomics and health community and determine whether GA4GH can help.
Work Streams create products. Community members join together to develop technical standards, policy frameworks, and policy tools that overcome hurdles to international genomic data use.
GIF solves problems. Organisations in the forum pilot GA4GH products in real-world situations. Along the way, they troubleshoot products, suggest updates, and flag additional needs.
NIF finds challenges and opportunities in genomics at a global scale. National programmes meet to share best practices, avoid incompatabilities, and help translate genomics into benefits for human health.
Communities of Interest find challenges and opportunities in areas such as rare disease, cancer, and infectious disease. Participants pinpoint real-world problems that would benefit from broad data use.
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All GA4GH standards, frameworks, and tools follow the Product Development and Approval Process before being officially adopted.
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9 Jan 2019
The BRCA Exchange, a global resource that includes data on thousands of inherited variants in the BRCA1 and BRCA2 genes, is now available through a website and a new smartphone app. A paper detailing the development of the BRCA Exchange was published January 8, 2019 by PLOS Genetics.
The BRCA Exchange, a global resource that includes data on thousands of inherited variants in the BRCA1 and BRCA2 genes, is now available through a website and a new smartphone app. A paper detailing the development of the BRCA Exchange was published January 8 by PLOS Genetics.
The BRCA Exchange was created through the BRCA Challenge, a long-term demonstration project initiated by the Global Alliance for Genomics and Health (GA4GH) to enhance sharing of BRCA1/BRCA2 data. The resource allows clinicians to review expert classifications of variants in these major cancer predisposition genes as part of their individual assessment of complex questions related to cancer prevention, screening, and intervention for high-risk patients.
“The BRCA Exchange is a great example of GA4GH’s efforts in convening stakeholders to share data and advance the use of genomics in healthcare, in this case through collaboratively building a free and open resource to improve breast cancer genetic testing,” said GA4GH Vice Chair Heidi Rehm, an Institute Member at the Broad Institute of MIT and Harvard and Chief Genomics Officer at Massachusetts General Hospital.
The five-year BRCA Challenge — now a GA4GH Driver Project — was funded in part by the National Cancer Institute (NCI), part of the National Institutes of Health, and through the Cancer Moonshot.
“This project has yielded a meta-analysis of BRCA1 and BRCA2 variants collected from multiple sources to understand how experts annotate specific mutations in the two genes,” said Stephen J. Chanock, M.D., director of NCI’s Division of Cancer Epidemiology and Genetics and lead author of the paper. “There’s an urgent need for sharing data in cancer predisposition research. The BRCA Exchange is proof-of-principle that large-scale collaboration and data sharing can be achieved and can provide the latest and best quality information to enable clinicians and individuals to improve care.”
Certain inherited variants in BRCA1 and BRCA2 can increase the risk of breast, ovarian, and other cancers by varying degrees, whereas other variants are not associated with disease. Clinicians and patients need to know whether a given variant is likely to be disease-associated (pathogenic) and how likely a pathogenic variant is to cause cancer (penetrance). Until now, the available data on the inherited variants in these genes was not aggregated in a comprehensive way.
The BRCA Exchange dataset comprises information from existing clinical databases—Breast Cancer Information Core, ClinVar, and the Leiden Open Variation Database—as well as population databases and data from clinicians, clinical laboratories, and researchers worldwide. It currently includes more than 20,000 unique BRCA1 and BRCA2 variants. More than 6,100 variants in the database have been classified by an expert panel, the Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA), and approximately 3,700 of these variants are known to cause disease. The BRCA Exchange pools variants from data resources worldwide, which should lead to inclusion of rare variants that are very occasionally observed.
With a single-point-of-access website (www.brcaexchange.org), the BRCA Exchange provides information on these gene variants to clinicians, researchers, data scientists, patients, and patient advocates. It also serves as a demonstration project showing that this kind of comprehensive data sharing—requiring collaboration across hundreds of organizations, the establishment of an infrastructure to house the information, and the development of data-sharing protocols—is possible for other cancer predisposition genes and, indeed, for genes associated with other diseases.
Next steps for the project include collaboration with additional global data generators and data holders, continued technical development, and increased engagement with patients and patient advocates around the world.