I think the answer is YES, in Denmark. It was carried out on 41 women. The results of the transplant is as follows:
The transplanted ovarian tissue can last up to 10 years, with no relapses following the 53 transplantation and the chances of a successful pregnancy is currently around one in three for those with a pregnancy-wish.
Though, cryopreservation of ovarian tissue is now gaining ground as a valid methods for fertility preservation. More than 36 children worldwide have now been born following this procedure.
So, the retrospective cohort study of 41 women who had thawed ovarian tissue transplanted 53 times over a period of 10 years, including 1 patient who was lost to follow up.
Then, the 41 danish women, who had in total 53 transplantation were followed for ovarian function aand fertility outcome. However, safety was assessed by monitoring relapse in cancer survivors.