Cellectar Signs Multi-Year Supply Agreement with Ionetix
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Dec 16 2025
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Cellectar Biosciences announced a multi-year supply agreement with Ionetix Corporation, a leading cyclotron technology innovator and full-service radioisotope manufacturer, for two critical alpha-emitting radioisotopes: Actinium-225 and Astatine-211. Under the agreement, Ionetix will provide Cellectar with a reliable, clinical and commercial-scale supply of cGMP-grade Ac-225 and At-211 to support its drug development programs through clinical trials and into potential commercial launches of targeted alpha therapy, TAT, candidates.
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Analyst Views on CLRB
About CLRB
Cellectar Biosciences, Inc. is a late-stage clinical biopharmaceutical company. The Company is focused on the discovery, development, and commercialization of drugs for treatment of cancer. The Company, through its phospholipid ether drug conjugate (PDC) delivery platform, is focused on developing PDCs that are designed to specifically target cancer cells. Its PDC platform possesses the potential for the discovery and development of cancer-targeting treatments, and it plans to develop PDCs both independently and through research and development collaborations. Its lead programs are: Iopofosine I 131 (iopofosine), a beta-emitting iodine-131-based program which has been studied extensively; CLR 121225, an actinium-225-based program; and CLR 121125, an iodine-125 Auger-emitting program. Iopofosine evaluation is ongoing in a Phase IIb study in r/r multiple myeloma and central nervous system lymphoma patients and the CLOVER-2 Phase Ib study for pediatric patients with high grade gliomas.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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