Cellectar Biosciences, Inc., a clinical biopharmaceutical company, focuses on the discovery, development, and commercialization of drugs for the treatment of cancer in the United States. The company's lead phospholipid drug conjugate (PDC) candidate is CLR 131 (iopofosine I-131), which is in Phase 2 clinical study for patients with B-cell malignancies; Phase 2a clinical study for patients with relapsed or refractory (r/r) Waldenstrom's macroglobulinemia cohort, r/r multiple myeloma (MM) cohort, and r/r non-Hodgkin's lymphoma cohort; Phase 1 clinical study for r/r pediatric patients with select solid tumors, lymphomas, and malignant brain tumors; and Phase 1 clinical study for r/r head and neck cancer. It also develops CLR 121125, an iodine-125 Auger-emitting radioconjugate program; and CLR 225, an actinium-225 based radioconjugate program. The company has collaborative with Orano Med to develop alpha emitter lead-212 conjugated to phospholipid ether series; and LegoChem Bio. Cellectar Biosciences, Inc. was founded in 2002 and is headquartered in Florham Park, New Jersey.