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Cellectar Biosciences Announces Publication of Phase 1 Study of Iopofosine I 131 in Peer-Reviewed Journal Cancers

$CLRBPress releaseJul 15, 2026, 7:30 AM ETRead the release

Cellectar Biosciences announced the publication of Phase 1 results for iopofosine I 131 in relapsed/refractory multiple myeloma within the peer-reviewed journal Cancers. The study of 31 heavily pretreated patients reported a manageable safety profile with primarily reversible hematologic toxicities and an overall response rate of 15.4%, with 84.6% of evaluable patients achieving stable disease or better.

Key figures

Drug Name
Iopofosine I 131
Phase Of Trial
Phase 1
Mtd
31.25 mCi/m²
Patient count
31
Partial responses
4
Overall response rate
15.4%
Phase2 recommended dose
15 mCi/m²
Efficacy evaluable patients
26
Stable disease or better rate
84.6%

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