The complexity and challenges of fertility preservation in women with cervix cancer-A prospective cohort study reporting on reproductive outcome and overall survival.

Abstract

Our objective was to assess the feasibility of fertility preservation (FP) in women referred for cervix cancer, the long-term reproductive outcome, and overall survival. Prospective cohort study of patients referred for FP counseling between 1999 and 2021 to the FP program of Karolinska University Hospital, Stockholm, Sweden. Baseline data included age, parity, disease stage, treatment characteristics, and FP methods applied. Data on reproductive outcomes and overall survival (by October 19, 2023) were retrieved from clinical registries and a population-based register. ClinicalTrials.gov NTC04602962. In total, 91 women were referred, 67% with stage I cancers and 25%, 7%, and 1% with stages II, III, and IV, respectively. Cancers were diagnosed during pregnancy or postpartum in six cases. Cancer treatments included fertility-sparing surgery in 14%, hysterectomy in 30%, and radiochemotherapy in 79% of cases. The treatment modality did not rule out the possibility to undergo FP, and following counseling, 68 patients elected to undergo FP by cryopreservation of embryos or oocytes (N = 11), ovarian tissue (N = 54), or both (N = 3). After a mean follow-up of 8.1 years, 25 women (37%) returned to the center, five women achieved conception either spontaneously or through assisted reproduction, and 11 women became mothers through adoption or surrogacy. In the group of women receiving radical surgery or chemo/radiotherapy, no live births using cryopreserved specimens have yet been achieved. During follow-up, 7 women (10%) in the FP group and 5 women (24%) in the group without FP had died of their disease. Cancer recurrence was documented in 19 patients. Our findings underscore the complexity and challenges associated with FP in the context of cervix cancer. Results of this study demonstrate that many women diagnosed with cervix cancer at reproductive age desire to achieve parenthood. While fertility-sparing surgery can allow pregnancy, those who undergo a hysterectomy are limited to adoption, surrogacy, or the emerging possibility of uterus transplantation.