23andMe Has Results From Its First In-House Drug

Hi folks, it’s Kristen in NYC. You’ve probably gotten one of their spit kits for Christmas, now 23andMe has some news on a tumor-fighting drug. But first…

It was not long ago that 23andMe made what seemed like a pivot — even though it had really been part of CEO Anne Wojcicki’s big plan all along.

The company is probably best known for its consumer DNA testing kits that, with the aid of a fairly large amount of spit, reveal to its customers information about their ancestry and health. But Wojcicki’s goal was never to inform people about their genetic aversion to cilantro. It was to use the power of genetics at scale to transform health. The idea is to comb its database of more than 13.6 million users for hints as to what genetic pathways might be at the root of disease.

Now, early results are in on the first drug the company sought to develop fully in house. The drug, 23ME-00610, is a monoclonal antibody that came from a discovery by 23andMe scientists of a biological pathway strongly associated with the way immune cells attack a certain kind of tumor. The drug is designed to reactivate the immune system’s response to tumors by restoring the ability of both T-cells and myeloid cells to fight them.

Early human clinical trials are mostly about safety — once it’s determined that a drug seems safe in a small number of people, larger trials further evaluate how effective the drugs are.

In this case, 27 people with treatment-resistant tumors were given doses of the drug every three weeks. The drug appeared to have a tolerable safety profile. There were also some early signals of the drugs efficacy, with a nearly 20% reduction in the size of tumors after several months for one patient, who remains in the trial. (You can see more details in this poster on the trial that the company presented at the annual meeting for the American Association for Cancer Research.)