The Havasupai Indians and the Challenge of Informed Consent for Genomic Research
Pulitzer Prize-winning journalist Amy Harmon, of The New York Times, reports that a long-running dispute between Arizona State University (ASU) and the Havasupai Indians over the allegedly improper research use of DNA from members of the tribe has been settled.
The research began two decades ago, ostensibly to search for a genetic variant that might be contributing to the increasing rate of diabetes in the tribe. The diabetes research proved unfruitful, but the blood donated by the Havasupai tribe members, and the DNA extracted from it, led to a number of follow-on research projects, grants and publications. It was that research – including searching tribe members’ DNA for variants linked to schizophrenia, and inferring the likely ancestral origins of the tribe’s founders – that led to lawsuits, millions in legal fees and, ultimately, the settlement.
Implications of the Havasupai Settlement. Harmon’s article provides a concise background to the dispute, and briefly describes the $700,000 settlement between ASU and the tribe to “remedy the wrong that was done.” Harmon and unnamed “legal experts” suggest that the settlement is significant because “it implied that the rights of research subjects can be violated when they are not fully informed about how their DNA might be used.”
In some respects, this is a trivial conclusion. One of the most important and well-known elements of the Common Rule – the regulatory regime that governs federally-funded human subjects research – is that researchers must seek, and participants provide, informed consent. Participants that are uninformed cannot provide valid consent and, thus, their rights as subjects are violated. In that respect, at least, the Havasupai case tells us nothing new. (I have not seen the settlement, but I doubt that it will (a) be made public or (b) contain an express admission of guilt from ASU, both factors that will limit its relevance to future similar scenarios.)
Genomic Privacy and Re-Identification Redux
New research published this week in the Proceedings of the National Academy of Sciences from Loukides et al. offers up a new method for preserving individual privacy while linking genomic and healthcare data. (“Anonymization of electronic medical records for validating genome-wide association studies.”) Daniel Cressey of Nature News and Katharine Gammon of Technology Review have concise (and free) summaries.
As we’ve written earlier (“Back to the Future: NIH to Revisit Genomic Data-Sharing Policy”), the ability to link – and to share – genotype and phenotype data (including medical records, particularly treatment and outcome data) will be essential to the development of the next generation of genomic research. One of the most common ways to link genotype and phenotype data is to combine genomic data with electronic medical records (EMRs). A particular patient’s EMR may contain everything from basic biographical information to family medical history to current diagnoses, including ICD codes. When it comes to associating genes with medical conditions, researchers rely on International Classification of Disease (ICD) codes to categorize individual patients by disease type and search for shared genetic variations that might play a causal role.
Cracking the Codes. Obviously identifying information (e.g., biographical information) is generally required to be removed pursuant to HIPAA regulations. ICD codes, however, are sometimes retained for purposes of genetic association research and, in some circumstances, a set of otherwise anonymous ICD codes pulled from an EMR can be traced backwards to identify the specific individual supplying the codes.
