Improvement of End-of-Synthesis Radiochemical Purity of 177Lu-DOTA-PSMA-Ligands with Alternative Synthesis Approaches: Conversion Upswing and Side-Products Minimization
2024

Improving the Purity of Prostate Cancer Treatment with New Synthesis Methods

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Author Information

Author(s): Anton Larenkov, Iurii Mitrofanov, Marat Rakhimov

Primary Institution: State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, Moscow, Russia

Hypothesis

Can alternative synthesis methods improve the radiochemical purity of 177Lu-DOTA-PSMA ligands?

Conclusion

The study found that using microwave heating and ethanol addition significantly enhances the radiochemical purity and yield of 177Lu-DOTA-PSMA ligands.

Supporting Evidence

  • Microwave heating reduced synthesis time to just 1 minute while maintaining high radiochemical purity.
  • Ethanol addition allowed synthesis at room temperature with nearly quantitative yields.
  • Both methods minimized the formation of harmful impurities during synthesis.

Takeaway

This study shows that using microwaves and adding ethanol can make cancer treatments more effective by reducing impurities in the medicine.

Methodology

The study evaluated synthesis methods using microwave heating and ethanol to improve radiochemical yield and purity.

Limitations

The study does not address the long-term stability of the synthesized compounds.

Digital Object Identifier (DOI)

10.3390/pharmaceutics16121535

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