ER+ breast cancer PDX models and MCF7 orthotopic xenograft (triplet with palbociclib and fulvestrant)
“inhibited tumor cell growth in human patient-derived xenograft (PDX) ER+ breast tumors with or without PIK3CA and PTEN mutations. In the MCF7 orthotopic mouse xenograft model of PIK3CA-mutant breast cancer, the combination of gedatolisib with palbociclib and fulvestrant increased tumor growth inhibition compared to each treatment alone or doublet combinations.”
✓ VerifiedFDA multi-discipline review, p. 40Source ↗
Why that model
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reviewer's view of the efficacy data
FDA: nonclinical data adequate to support approval
“The nonclinical data submitted to this NDA are adequate to support approval of Revtorpyk for the proposed indication.”
✓ VerifiedFDA multi-discipline review, p. 42Source ↗