Skip to Content

Consumer Genetic Test Can Predict Your Drug Response

A startup called Genome Liberty is developing a consumer genetics test to gauge an individual’s ability to metabolize prescription drugs.

A personal genetics startup thinks that there is one set of DNA variants that everyone should know: the ones that help determine how you respond to drugs.

Genome Liberty, a New Jersey-based startup, wants to provide a $99 test that will tell customers, based on their genetics, if they should take a nonstandard dose of a drug because their body will break it down faster or slower than most people. In some cases the test might suggest a particular drug someone should take or avoid. “The idea is to give you a card to keep in your wallet, or an iPhone app, which says which medications you shouldn’t take,” says cofounder Jeffrey Rosenfeld, a genome scientist at Rutgers University.

The company would offer these tests directly to consumers, who could then relay any relevant information to their doctors, Rosenfeld says.

Genome Liberty isn’t the first company to offer such tests. The consumer genetics company 23andMe also offers some drug response tests in its genome scan, which also includes tests for things like eye color and the genetic risk for developing serious diseases. Rosenfeld says Genome Liberty wanted a more focused test. “The idea is to provide information that is usable, that you can act on,” he says.

Consumers who get the Genome Liberty drug response test would send a sample of saliva to the company’s lab. The company scans the genome for DNA variations in 11 liver enzyme genes, which are a subset of the dozens of genes encoding enzymes for drug metabolism. Enzymes in the liver process drugs and can either deactivate or activate drugs, depending on the compound. Different people carry different versions or amounts of many of these enzymes, which can affect how they respond to drugs. Some patients may process a drug more quickly, more slowly, or perhaps not at all.

Genome Liberty says that variants in those 11 enzymes can affect the activity of nearly 80 drugs in the body. The test “will tell people which medications they should take and which they should avoid based on markers in their DNA,” says Rosenfeld.

The company is using a crowdfunding site to raise money to develop its test, which is available for pre-order. The recent U.S. Supreme Court decision that limited the patent claims that companies can make on genes (see “U.S. Supreme Court Says ‘Natural’ Human Genes May Not Be Patented”) helped spur Genome Liberty to launch. “We were worried about whether we could start this company or not,” says Rosenfeld. Until that decision, he says, most genes were covered by a patent.

It is still not clear whether genetic tests sold directly to consumers will come under regulatory scrutiny. In 2010, the FDA warned 23andMe and other consumer genetics companies that their services amount to medical devices and thus need regulatory approval. But since then, the U.S. government has not come up with clear rules for these companies. Nevertheless, 23andMe applied for regulatory approval for portions of its test last year (see “Personal Genetics Company Seeks Regulatory Approval”).

Another question is whether doctors will make use of information from a consumer genetics test. Physicians don’t always trust the results of direct-to-consumer tests and may not have clear medical guidelines for how to use it (see “Why We Have a Right to Consumer Genetics”). But the connections between the liver enzyme variants and drug response are well-supported, says Rosenfeld. If a doctor doesn’t want to accept these results, he says, then “find a different doctor.”

Keep Reading

Most Popular

computation concept
computation concept

How AI is reinventing what computers are

Three key ways artificial intelligence is changing what it means to compute.

still from Embodied Intelligence video
still from Embodied Intelligence video

These weird virtual creatures evolve their bodies to solve problems

They show how intelligence and body plans are closely linked—and could unlock AI for robots.

conceptual illustration showing various women's faces being scanned
conceptual illustration showing various women's faces being scanned

A horrifying new AI app swaps women into porn videos with a click

Deepfake researchers have long feared the day this would arrive.

pig kidney transplant surgery
pig kidney transplant surgery

Surgeons have successfully tested a pig’s kidney in a human patient

The test, in a brain-dead patient, was very short but represents a milestone in the long quest to use animal organs in human transplants.

Stay connected

Illustration by Rose WongIllustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.