Combination of 177Lu-TLX250 and Peposertib in Patients With Carbonic Anhydrase IX -Expressing Solid Tumors

NCT 05868174

Brief Summary

This is an open label, single-arm, multicentre dose escalation (Part 1) and dose expansion (Part 2) study to evaluate different combinations of 3 radioactive dose levels of 177Lu-TLX250 administered intravenously with 3 different doses of peposertib in patients with CAIX-expressing solid tumors.

Intervention / Treatment

  • Diagnostic Test89Zr-TLX250
  • Combination Product177Lu-TLX250 and Peposertib

Inclusion Criteria:

  • Histologically confirmed advanced or metastatic solid tumor that has progressed on or during/after recognized standard of care therapies and are not eligible for resection, or patients that are not eligible or not consenting to recognized standard of care therapies.
  • At least one measurable lesion on CT/MRI according to RECIST 1.1 with corresponding 89Zr-TLX250 uptake (i.e., CAIX positive).
  • CAIX positivity in at least 75% of the total lesion volume (defined as 89Zr- TLX250 uptake with intensity significantly greater than normal liver [i.e., standardized uptake value [SUV]max at least 1.5 times SUV of normal liver]).
  • ECOG status 0 or 1.
  • Have adequate organ function during screening
  • Must have a life expectancy of at least 6 months.

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