PIPELINE > TRIAL OVERVIEW

PI3Kα Inhibitor
LOXO-783
Type of Alteration(s)

Point Mutation

Alteration(s) of Interest

PIK3CA H1047R

Methodology
Key Considerations
Test image Sanger Sequencing
  • Can detect all possible PIK3CA mutations within an exon
  • Detection may require higher tumor content than PCR-based assays
Test image PCR-Based
  • Will detect selected mutations but may miss novel PIK3CA alterations
Test image NGS (Tissue)
  • Should have full coverage of Exon 20
Test image NGS (cfDNA)
  • Useful when tissue biopsy sample is limited/unavailable
  • Higher false negative rate than tissue-based NGS testing
Test image Single base extension/MassArray
  • Will detect selected mutations but may miss novel PIK3CA alterations

References

  1. Samuels Y, et al. Science. 2004;304(5670):554.
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