Alpha-9 Oncology designs bespoke molecules that deliver radioactive isotopes to cancer cells, with early human trials under way in melanoma and in breast and other solid tumours.
Alpha-9 Oncology is a clinical-stage radiopharmaceutical company with offices in Vancouver and Boston. It takes a modular approach, optimising each element of a radiotherapeutic (binder, linker, chelator and isotope) and pairing therapeutic agents with imaging companions. A9-3408, an actinium-225 radiotherapeutic targeting melanocortin 1 receptor (MC1R), began a phase 1 study in melanoma in December 2025, following the 68Ga imaging agent A9-3202 that entered the clinic in 2024. In September 2026 the company dosed the first patient in a phase 1 study of two GRPR-targeting compounds, 225Ac-A9-0642 and 177Lu-A9-0631, in breast cancer and other solid tumours, with data expected in late 2027. Alpha-9 has an actinium-225 supply agreement with ITM (April 2025). In October 2024 it closed an oversubscribed USD 175 million Series C led by Lightspeed Venture Partners and Ascenta Capital. Paul Blanchfield was appointed CEO in November 2025.
| Round | Year | Amount | Source |
|---|---|---|---|
| Series C | 2024 | $175M | a9oncology.com |
Amounts only where the cited source states them. Rounds without a public source are not listed.
Shares Samsara BioCapital, Lightspeed Venture Partners, Frazier Life Sciences.
Shares Frazier Life Sciences, Radioligand therapy (beta emitters).
Shares RA Capital Management, Radioligand therapy (beta emitters).
Shares Targeted alpha therapy, Radioligand therapy (beta emitters).
Shares PET (positron emission tomography), Radioligand therapy (beta emitters).