A clinical trial wants your DNA – what should you do?
On May 6, the started enrolling participants. will be one of the largest ever examining the connection between genetics, behavior, and medical outcomes, with a goal of 1 million or more participants. Anyone over the age of 18 in the U.S. can join.
You may question how this will benefit you and potentially compromise your privacy. Your skepticism is warranted and worthy of investigation to help you make the correct decision.
Why Do a Clinical Trial?
Clinical trials often offer benefits to their participants. Many offer early access to cutting-edge treatment that’s not available to others. Another perk may be free or discounted treatment, or some other incentive.
In my view, participating in a clinical trial is also somewhat a personal duty. In the U.S., as of 2013, the Food and Administration has approved for use in humans. When you take an approved drug, you benefit from not only the work of scientists and billions of dollars of investment, but the sacrifice of many participants who took a chance on an experimental drug.
In contrast, the All of Us trial is not designed for any direct improved treatment. Instead, it aims to collect data to help researchers understand the connections between genetics, lifestyle, and disease. For example, the study could identify novel biomarkers to measure long-term average blood glucose levels.
Despite careful tests on safety and dosage, when some drugs reach market, some individuals have serious adverse reactions, which . Others see no benefit from the drug.
Why does this happen? The answer in large part comes from genetics. Like a computer program that codes for some task, DNA codes for many traits – including a person’s susceptibility to disease and response to drugs.
Each person’s DNA sequence encodes millions of variations compared to another person, unless that person has an identical twin. Cost-effective sequencing of all or part of a person’s DNA now enables scientists to look at the potential relationship between one or more of these genetic variations and disease diagnosis, prognosis or treatment. In fact, about 8 percent of all approved drugs on their label to identify the right drug and dosage.
The large number of participants in All of Us will give researchers enough data to detect links between treatments, lifestyles and health outcomes.
Risks to Your Data
One should be aware of the amount of genetic information you are disclosing in a research study, whether it’s in a clinical trial or a more generalized study.
Ê×Ò³| Â鶹´«Ã½Ó³» 8 percent of all approved drugs now recommend a specific genetic test on their label. Sergei Drozd/shutterstock.com
Some studies are , examining about 1 to 100 genetic variations, often in a specific gene or set of genes, called a panel. Other studies that has 0.5 to 1 million common genetic variants. This is typically the technology used by recreational genetic companies like 23andMe and Ancestry. Even more data comes from . It’s not yet clear what type of tests All of Us will use.
What are your risks of giving away your genetic information? that you and your relatives can likely be identified from your DNA, so your privacy could potentially be compromised.
In a clinical trial, you will not have ownership or even access to your genetic data. In a company-driven trial, data might be shared with third parties and protections against a data breach are not regulated. If you have used a recreational genetics company, you should review the websites and company policies for the protections afforded.
However, if a dangerous mutation in one of the 59 genes defined by the American College of Medical Genetics is identified in a research study, the participant . This screening is an added benefit for the participant.
Weighing the Costs
A number of laws protect against the misuse of participant genetic data, especially in a trial sanctioned by the National Institutes of Health, such as All of Us.
Three laws protect Americans against discrimination based on genetics: the , and .
Insurance companies cannot access clinical trial results. Nevertheless, there’s little in many situations, including life insurance, the military and .
As part of a trial, you will be asked to sign an informed consent form, which lets you know the risks and how your information will be used. The trial and consent form must be approved by an Institutional Review Board that monitors human subject research. Read these documents.
The NIH requires that any genetic data resulting from their funding be shared through secure web systems such that your contribution maximizes impact. That means the use of your genetic data is .
Genetic data can undoubtedly lead to more drugs with more focused targeting and better health care for all. High-quality studies with strong statistical power, like All of Us, may need millions of participants. Clearly, a system that lets scientists comprehensively share genetic and clinical data, yet maintains acceptable privacy, is desperately needed.
By sharing medical records and having the large data set accessible to other scientific researchers, All of Us is a key step in the right direction.
