“More than 500,000 people in the U.S. require dialysis several times a week. Many seek kidney transplants, but there are not enough donors, and only about 20,000 people receive them each year.”
The Kidney Project kept one type of kidney cell alive inside a pig for seven days without immunosuppressant drugs. That is one cell type, one test animal and one week. The FDA wants month-long trials in animals before anyone gets near a human. The 500,000 people on dialysis get a press release with a question mark in the headline.