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Research ArticleBasic Science Investigation
Open Access

Preclinical Evaluation of 177Lu-rhPSMA-10.1, a Radiopharmaceutical for Prostate Cancer: Biodistribution and Therapeutic Efficacy

Caroline Foxton, Bradley Waldron, Rikke Veggerby Grønlund, Jaime (Jim) Simón, Bart Cornelissen, Edward O’Neill and Daniel Stevens
Journal of Nuclear Medicine April 2025, 66 (4) 599-604; DOI: https://doi.org/10.2967/jnumed.124.268508
Caroline Foxton
1Blue Earth Diagnostics Ltd., Oxford, United Kingdom;
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Bradley Waldron
2Blue Earth Therapeutics Ltd., Oxford, United Kingdom;
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Rikke Veggerby Grønlund
3Minerva Imaging, Ølstykke, Denmark;
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Jaime (Jim) Simón
4IsoTherapeutics Group LLC, Angleton, Texas; and
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Bart Cornelissen
5Department of Oncology, University of Oxford, Oxford, United Kingdom
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Edward O’Neill
5Department of Oncology, University of Oxford, Oxford, United Kingdom
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Daniel Stevens
2Blue Earth Therapeutics Ltd., Oxford, United Kingdom;
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  • FIGURE 1.
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    FIGURE 1.

    Longitudinal biodistribution of 177Lu-rhPSMA-10.1 in non–tumor-bearing BALB/c mice (A) and 22Rv1 xenograft–bearing SCID mice (B).

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    FIGURE 2.

    (A) Kidney uptake of 177Lu-rhPSMA-10.1 and 177Lu-PSMA-I&T in BALB/c mice. (B) Blood clearance of 177Lu-rhPSMA-10.1 and 177Lu-PSMA-I&T in BALB/c mice. (C) Tumor and kidney uptake of 177Lu-rhPSMA-10.1 and 177Lu-PSMA-I&T in 22Rv1 xenograft–bearing SCID mice at single time point. *P ≤ 0.05. **P ≤ 0.01. ***P ≤ 0.001.

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    FIGURE 3.

    Therapeutic efficacy and tolerability of single administration of 177Lu-rhPSMA-10.1 (15, 30, and 45 MBq) in LNCaP tumor–bearing mice: relative tumor volume (A), survival (B), and relative body weight (C).

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    FIGURE 4.

    Therapeutic efficacy and tolerability of single administration (30 MBq) of 177Lu-rhPSMA-10.1 in 22Rv1 tumor–bearing mice, compared with 177Lu-PSMA-617 and 177Lu-PSMA-I&T: relative tumor volume (A), survival (B), and relative body weight (C).

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Journal of Nuclear Medicine: 66 (4)
Journal of Nuclear Medicine
Vol. 66, Issue 4
April 1, 2025
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Preclinical Evaluation of 177Lu-rhPSMA-10.1, a Radiopharmaceutical for Prostate Cancer: Biodistribution and Therapeutic Efficacy
Caroline Foxton, Bradley Waldron, Rikke Veggerby Grønlund, Jaime (Jim) Simón, Bart Cornelissen, Edward O’Neill, Daniel Stevens
Journal of Nuclear Medicine Apr 2025, 66 (4) 599-604; DOI: 10.2967/jnumed.124.268508

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Preclinical Evaluation of 177Lu-rhPSMA-10.1, a Radiopharmaceutical for Prostate Cancer: Biodistribution and Therapeutic Efficacy
Caroline Foxton, Bradley Waldron, Rikke Veggerby Grønlund, Jaime (Jim) Simón, Bart Cornelissen, Edward O’Neill, Daniel Stevens
Journal of Nuclear Medicine Apr 2025, 66 (4) 599-604; DOI: 10.2967/jnumed.124.268508
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Keywords

  • preclinical
  • prostate cancer
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