Wauwatosa-based TAI Diagnostics Inc. has completed its $10 million series A extension funding round.

The biotechnology startup, a Medical College of Wisconsin spinoff based in the Milwaukee County Research Park, reported the preferred equity round to the SEC in October.

TAI Diagnostics, founded in 2015, provides non-invasive and highly sensitive diagnostic testing of transplanted organs. It is focused on helping patients who have received heart transplants avoid organ rejection by measuring the amount of donor cell-free DNA released into a recipient’s bloodstream, which can indicate whether an organ is injured using just a blood sample. This process is highly sensitive and specific, and also less expensive than the traditional endomyocardial biopsy and pathologist interpretation performed on cardiac transplant patients to assess rejection. Read the full story here.