Absence of conclusive evidence for the safety and efficacy of gonadotropin-releasing hormone analogue treatment in protecting against chemotherapy-induced gonadal injury.
Every year, an increasing number of women with malignant and nonmalignant diseases is successfully treated with cytotoxic chemotherapy and/or radiotherapy. Many of these patients suffer from infertility and gonadal failure as a result of these treatments. At present, these patients may resort to assisted-reproduction techniques to protect their future childbearing potential before the implementation of cytotoxic therapy. While embryo cryopreservation is an established technology, oocyte and ovarian tissue freezing techniques are still investigational. Nevertheless both of these techniques have resulted in live births. Apart from assisted-reproduction techniques, it has been extensively debated whether administration of gonadotropin-releasing hormone (GnRH) analogues in conjunction with chemotherapy can protect ovarian reserve against cytotoxic insult. In this manuscript, we debate the rationale for the effectiveness of GnRH analogue coadministration in preservation of fertility by reviewing the literature, and provide preliminary data to support our views.
Oktay
Kutluk
K
Department of Obstetrics and Gynecology, Joan and Sanford I. Weill Medical College of Cornell University, 505 East 70th Street, HT-340, New York, New York 10021, USA. Koktay@fertilitypreservation.org
Sönmezer
Murat
M
Oktem
Ozgür
O
Fox
Kevin
K
Emons
Günter
G
Bang
Heejung
H
D000970:Antineoplastic Agents / Q000009:adverse effects*; D015925:Cryopreservation; D005260:Female; D005298:Fertility / Q000187:drug effects; D007987:Gonadotropin-Releasing Hormone / Q000819:agonists* / Q000627:therapeutic use; D006801:Humans; D009865:Oocytes; D010053:Ovary / Q000187:drug effects*; D016649:Primary Ovarian Insufficiency / Q000517:prevention & control; D020011:Protective Agents / Q000627:therapeutic use; D027724:Reproductive Techniques, Assisted; D012449:Safety; D016896:Treatment Outcome
D000970:Antineoplastic Agents; D020011:Protective Agents; D007987:Gonadotropin-Releasing Hormone