Murine allogeneic bone marrow transplant model (myeloablation, immunosuppression)
“Treosulfan showed in vivo myeloablative and immunosuppressive activity in a murine allogeneic bone marrow transplant model.”
✓ VerifiedFDA multi-discipline review, p. 144Source ↗
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: data did not convincingly show DNA alkylation/breaks as MOA
“During the review of the NDA, it was determined that the nonclinical data for treosulfan submitted to the NDA in studies or literature for which the Applicant has the right to reference did not provide convincing evidence of DNA alkylation and breaks as the mechanism of action (MOA) of treosulfan.”
✓ VerifiedFDA multi-discipline review, p. 24Source ↗