(p. A1) HANGZHOU, China–In a hospital west of Shanghai, Wu Shixiu since March has been trying to treat cancer patients using a promising new gene-editing tool.
U.S. scientists helped devise the tool, known as Crispr-Cas9, which has captured global attention since a 2012 report said it can be used to edit DNA. Doctors haven’t been allowed to use it in human trials in America. That isn’t the case for Dr. Wu and others in China.
In a quirk of the globalized technology arena, Dr. Wu can forge ahead with the tool because he faces few regulatory hurdles to testing it on humans. His hospital’s review board took just an afternoon to sign off on his trial. He didn’t need national regulators’ approval and has few reporting requirements.
Dr. Wu’s team at Hangzhou Cancer Hospital has been drawing blood from esophageal-cancer patients, shipping it by high-speed rail to a lab that modifies disease-fighting cells using Crispr-Cas9 by deleting a gene that interferes with the immune system’s ability to fight cancer. His team then infuses the cells (p. A10) back into the patients, hoping the reprogrammed DNA will destroy the disease.
In contrast, what’s expected to be the first human Crispr trial outside China has yet to begin. The University of Pennsylvania has spent nearly two years addressing federal and other requirements, including numerous safety checks designed to minimize risks to patients. While Penn hasn’t received final federal clearance to proceed, “we hope to get clearance soon,” a Penn spokeswoman said.
“China shouldn’t have been the first one to do it,” says Dr. Wu, 53, an oncologist and president of Hangzhou Cancer Hospital. “But there are fewer restrictions.”
For the full story, see:
Rana, Preetika, Amy Dockser Marcus and Wenxin Fan. “China Races Ahead In Gene Editing.” The Wall Street Journal (Monday, January 22, 2018): A1 & A10.
(Note: the online version of the story has the date Jan. 21, 2018, and has the title “China, Unhampered by Rules, Races Ahead in Gene-Editing Trials.”)