Female Fertility Preservation Using Ovarian Tissue Cryopreservation Before Highly Gonadotoxic Cancer Treatment

Summary

Background: Due to the remarkable improvement in treatments these last decades, long term survival can be expected in more than 80% of childhood cancer patients. Unfortunately, cancer treatments can be harmful to the gonads and can affect reproductive and endocrine functions. While loss of fertility is a major concern for most patients, only the experimental option of ovarian tissue cryopreservation can be proposed to prepubertal girls with a high risk of infertility. For pubertal patient, cryopreservation of mature oocytes after ovarian stimulation can be offered if oncological treatment debut can be delayed. As it is often not possible, ovarian tissue cryopreservation can also be offered. Primary aims \- To cryopreserve ovarian tissue of pre or peripubertal patient who will be receiving highly gonadotoxic oncological treatment. Secondary aims * To create a database in order to record clinical and biological follow-up data * To pool resources with Fertisave Registry * To create a research biobank for future research projects Multicentric study: HUG, CHUV

Eligibility

Inclusion Criteria:

* Pediatric pre ou peripubertal patient aged 2 months and older
* Patient presenting high risk of infertility because of gonadotoxic treatments (i.e. high dose of alkylating agents, ovarian irradiation, total body irradiation)
* Multidisciplinary team consensus in favour to proposition to cryopreserve ovarian tissue.

Exclusion Criteria:

* Patient under the age of 2 months
* Refusal of the patient and/or her parents
* Treatments that are not highly gonadotoxic

Conditions3

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