Clinical Trial: Cellectar Bioscience Updates Phase I Results Showing Extended Overall Survival for CLR 131 in Relapsed/Refractory Myeloma

Cellectar Biosciences is working on testing a radiosensitive therapy in blood cancers including multiple myeloma. Their product, CLR 131, targets the myeloma tumors by delivering a cytotoxic radioisotope, iodine-131 directly to the tumor cells. In a recent press release. they announced updated Phase I study results showing an overall mean survival rate of 26.2 months for relapsed/refractory myeloma patients (who had received on average 5.8 prior lines of therapy). The drug was given as a one or two-dose treatment as a single agent, given during a 30-minute infusion. These results are promising when compared to recently FDA-approved myeloma treatments. According to the company:
While no head-to-head studies have been conducted to date with CLR 131, for comparison, the median overall survival benefit seen with the three most recently FDA-approved third line therapies for multiple myeloma ranges from 11.9 — 18.6 months in separate trials.
A Phase II study is now open using CLR 131 and dexamethasone for blood cancer patients including: multiple myeloma (MM), indolent chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), lymphoplasmacytic lymphoma (LPL), marginal zone lymphoma (MZL), mantle cell lymphoma (MCL), and diffuse large B-cell lymphoma (DLBCL) who have been previously treated with standard therapy for their underlying malignancy.
There are 6 active sites for this trial.
Learn more and connect with this trial directly here:
CLR 131 Trial
Find eligible clinical trials for your myeloma here:
Find Myeloma Clinical Trials
Cellectar Biosciences is working on testing a radiosensitive therapy in blood cancers including multiple myeloma. Their product, CLR 131, targets the myeloma tumors by delivering a cytotoxic radioisotope, iodine-131 directly to the tumor cells. In a recent press release. they announced updated Phase I study results showing an overall mean survival rate of 26.2 months for relapsed/refractory myeloma patients (who had received on average 5.8 prior lines of therapy). The drug was given as a one or two-dose treatment as a single agent, given during a 30-minute infusion. These results are promising when compared to recently FDA-approved myeloma treatments. According to the company:
While no head-to-head studies have been conducted to date with CLR 131, for comparison, the median overall survival benefit seen with the three most recently FDA-approved third line therapies for multiple myeloma ranges from 11.9 — 18.6 months in separate trials.
A Phase II study is now open using CLR 131 and dexamethasone for blood cancer patients including: multiple myeloma (MM), indolent chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), lymphoplasmacytic lymphoma (LPL), marginal zone lymphoma (MZL), mantle cell lymphoma (MCL), and diffuse large B-cell lymphoma (DLBCL) who have been previously treated with standard therapy for their underlying malignancy.
There are 6 active sites for this trial.
Learn more and connect with this trial directly here:
CLR 131 Trial
Find eligible clinical trials for your myeloma here:
Find Myeloma Clinical Trials

about the author
Jennifer Ahlstrom
Myeloma survivor, patient advocate, wife, mom of 6. Believer that patients can contribute to cures by joining HealthTree Cure Hub and joining clinical research. Founder and CEO of HealthTree Foundation.
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