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A Phase 1b, Open-Label Parallel Study Evaluating CLR 125 in Patients With Relapsed or Refractory Triple Negative Breast Cancer

Trial Profile

A Phase 1b, Open-Label Parallel Study Evaluating CLR 125 in Patients With Relapsed or Refractory Triple Negative Breast Cancer

Status: Recruiting
Phase of Trial: Phase I

Latest Information Update: 05 Jun 2026

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At a glance

  • Drugs CLR 121125 (Primary) ; Iopofosine I 131 (Primary)
  • Indications Advanced breast cancer; Male breast cancer; Triple negative breast cancer
  • Focus Adverse reactions
  • Sponsors Cellectar Biosciences

Most Recent Events

  • 14 May 2026 According to Cellectar Biosciences media release, The Company anticipates activating additional study sites throughout the second quarter and will provide dosimetry, safety and efficacy updates in the second quarter and throughout the balance of 2026.
  • 14 May 2026 According to Cellectar Biosciences media release, Dosed First Patients in Phase 1b Dose Finding Study for CLR 125 in Triple Negative Breast Cancer with Early Dosimetry, Safety and Efficacy Data Expected Mid-year 2026
  • 14 Apr 2026 According to Cellectar Biosciences media release, the first patient has been enrolled in this trial. Additional study sites being activated in Q2, plan to provide dosimetry, safety, and efficacy updates throughout 2026.

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