Off-label letrozole for tubal pregnancy monotherapy is not an alternative to methotrexate: a prospective cohort study.
Iwona Magdalena GawronDorota BabczykJoanna FigulaPublished in: Ginekologia polska (2024)
Even though the results did not reach statistical significance, it is likely that a larger study sample would confirm the trend of letrozole being less effective. The results did not support the use of letrozole in the studied regimen as an alternative to MTX.