Patient-derived NSCLC xenografts with EGFR exon20ins (LU0387, LU3075) and A431 WT EGFR xenograft in nude mice
“The Applicant investigated the in vivo anti-tumor activity of sunvozertinib in nude mice (6-9/group) implanted subcutaneously (SC) with a human squamous cell carcinoma cell line expressing WT EGFR (A431) or patient-derived NSCLC xenograft models carrying EGFR exon20ins mutations (LU0387 and LU3075).”
✓ VerifiedFDA multi-discipline review, p. 42Source ↗
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: in vitro activity on the exon 20 insertion mutation was similar to wild-type EGFR
“FDA notes that the activity of sunvozertinib and DZ0753 on exon 20 insertion mutation (EGFR D770_N771insNPG) was similar to wild-type EGFR (Applicant’s Table 3).”
✓ VerifiedFDA multi-discipline review, p. 41Source ↗