02 Oct Cellectar Announces Overall Survival Exceeding 19 Months in Phase 1b Trial with CLR 131 in Relapsed/Refractory Multiple Myeloma
Cellectar Biosciences (Nasdaq: CLRB), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of drugs for the treatment of cancer, today updates interim overall survival (OS) data from the company’s ongoing Phase 1b clinical trial evaluating CLR 131 for the treatment of relapsed/refractory (R/R) multiple myeloma (MM).
The results to date show that OS is currently at 19.4 months. Cellectar continues to monitor these patients and intends to update OS results as data become available. All 15 patients from the Phase 1b, single-dose cohorts were heavily pretreated, receiving an average of 5 previous lines of multidrug therapy including anti CD38, immunomodulating drugs and proteasome inhibitors. All patients were relapsed or refractory to at least one proteasome inhibitor and IMiD. Most patients presented with advanced stage 2 or 3 disease and 67% had previously received at least 1 stem cell transplant.
“We are extremely pleased to announce that CLR 131 has achieved OS of 19.4 months in our Phase 1b trial in R/R MM. We view this outcome as impressive considering all patients were heavily pretreated and presented with high tumor burden,” said James Caruso, president and chief executive officer of Cellectar Biosciences. “Most drugs currently approved for third-line or later R/R MM average approximately 12 months of survival, including several recent approvals. We believe extending OS to beyond 19 months with a more patient-friendly dosing regimen provides both a unique product profile and potential for beneficial patient outcomes.”
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