Series B first close · Biotech

RadioNano completes first Series B close ahead of RN-501 clinical trials

Mitsui Kinzoku joins the Kyoto University spinout as a shareholder while Kyoto iCAP’s 2021 fund invests again.

The funding marks a transition from nonclinical development toward testing RN-501 in people. The company has been preparing manufacturing processes and analytical methods alongside its preclinical work.

Mitsui Kinzoku already collaborates on the inorganic nanoparticles at the core of RN-501. Its investment deepens that relationship as the program moves toward clinical development. RadioNano is continuing fundraising for a second Series B close.

Use of funds

Conduct RN-501 Phase I/IIa clinical trials.

Establish GMP manufacturing and supply of the investigational medicine and strengthen the development team.

Funding history

Series B first close · This roundUndisclosed

Sources

  1. RadioNano Series B first closeprtimes.jp · Oct 9, 2026