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FERTILITY PRESERVATION IN YOUNG WOMEN WITH EARLY-STAGE BREAST CANCER.

ABSTRACT: Although breast cancer (BC) occurs more often in older women, it is the most commonly diagnosed malignancy in women of childbearing age. Owing to the overall advancement of modern medicine and the growing global trend of delaying childbirth until later age, we find ever more younger women diagnosed and treated for BC who have not yet completed their family. Therefore, fertility preservation has emerged as a very important quality of life issue for young BC survivors. This paper reviews currently available options for fertility preservation in young women with early-stage BC and highlights the importance of a multidisciplinary approach to fertility preservation as a very important quality of life issue for young BC survivors. Pregnancy after BC treatment is considered not to be associated with an increased risk of BC recurrence; therefore, it should not be discouraged for those women who want to achieve pregnancy after oncologic treatment. Currently, it is recommended to delay pregnancy for at least 2 years after BC diagnosis, when the risk of recurrence is highest. However, BC patients of reproductive age should be informed about the potential negative effects of oncologic therapy on fertility, as well as on the fertility preservation options available, and if interested in fertility preservation, they should be promptly referred to a reproductive specialist. Early referral to a reproductive specialist is an important factor that increases the likelihood of successful fertility preservation. Embryo and mature oocyte cryopreservation are currently the only established fertility preservation methods but they require ovarian stimulation (OS), which delays initiation of chemotherapy for at least 2 weeks. Controlled OS does not seem to increase the risk of BC recurrence. Other fertility preservation methods (ovarian tissue cryopreservation, cryopreservation of immature oocytes and ovarian suppression with gonadotropin-releasing hormone agonists) do not require OS but are still considered to be experimental techniques for fertility preservation.

SUBMITTER: Vukovic P

PROVIDER: S-EPMC6629203 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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FERTILITY PRESERVATION IN YOUNG WOMEN WITH EARLY-STAGE BREAST CANCER.

Vuković Petra P Kasum Miro M Raguž Jelena J Lonjak Nikolina N Bilić Knežević Sara S Orešković Ivana I Beketić Orešković Lidija L Čehić Ermin E

Acta clinica Croatica 20190301 1

Although breast cancer (BC) occurs more often in older women, it is the most commonly diagnosed malignancy in women of childbearing age. Owing to the overall advancement of modern medicine and the growing global trend of delaying childbirth until later age, we find ever more younger women diagnosed and treated for BC who have not yet completed their family. Therefore, fertility preservation has emerged as a very important quality of life issue for young BC survivors. This paper reviews currently ...[more]

PMID: 31363337

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Project description:ImportanceThe practice of fertility preservation (FP) in women with breast cancer (BC) is spreading, but long-term reproductive outcomes after FP are largely unknown.ObjectiveTo investigate the long-term reproductive outcomes in women who did or did not undergo FP at the time of BC diagnosis.Design, setting, and participantsA Swedish nationwide cohort study was conducted to investigate the long-term reproductive outcomes of women with BC receiving FP at 1 of the regional FP programs from 1994 to 2017 (n = 425). Population comparators with BC but without history of FP (n = 850) were sampled from regional BC registers, matched on age, calendar period of diagnosis, and county. Data on live births, assisted reproductive technology (ART) use, and mortality were retrieved from population-based registers. Data analysis was performed from January to September 2020.ExposuresHistory of having received FP compared with no history of FP (unexposed).Main outcomes and measuresThe primary outcome was hazard ratios (HRs) of live births and ART treatments following BC in women with vs without FP and the cumulative incidence of these events in the presence of the competing risk of death.ResultsWomen who had undergone FP (n = 425) had lower parity (302 [71.1%] were nulliparous compared with 171 [20.1%] in the unexposed group), were younger (mean [SD] age, 32.1 [4.0] vs 33.3 [3.6] years), more often had estrogen receptor-positive tumors (289 [68.0%] vs 515 [60.6%]), and were more often scheduled for chemotherapy (399 [93.9%] vs 745 [87.7%]). Of 425 women exposed to FP, 97 (22.8%) had at least 1 post-BC live birth (mean follow-up, 4.6 years), compared with 74 of 850 women (8.7%) unexposed to FP (mean follow-up, 4.8 years). Overall, live birth rates after BC were significantly higher among women with FP (adjusted hazard ratio [aHR], 2.3; 95% CI, 1.6-3.3). The 5-year and 10-year cumulative incidence of post-BC live births was 19.4% and 40.7% among FP-exposed women vs 8.6% and 15.8% among comparators, respectively. Rates of ART use were also higher in the FP group (aHR, 4.8; 95% CI, 2.2-10.7). The all-cause mortality rate was lower in women exposed to FP (aHR, 0.4; 95% CI, 0.3-0.7), with 5-year cumulative incidence of death of 5.3% (95% CI, 3.1%-9.0%) vs 11.1% (95% CI, 8.7%-14.1%) for women with vs without FP.Conclusions and relevanceIn this cohort study of Swedish women after a BC diagnosis, successful pregnancy after BC was possible both in women with and without FP at the time of diagnosis, but a significantly higher likelihood of post-BC live births and ART treatments was observed in women who underwent FP, without any negative association with all-cause survival. This information is valuable for health care clinicians responsible for oncologic treatment and reproductive counseling of women diagnosed with breast cancer at reproductive age.

Project description:Importance:Infertility can be a devastating adverse effect of cancer treatment for young women. Fertility preservation may be an important and influential factor in treatment decisions. Despite American Society of Clinical Oncology guidelines recommending discussion around potential infertility with patients, nearly 50% of young women with cancer remain uninformed. Objective:To understand and describe from clinicians' perspectives the barriers to discussing infertility and fertility preservation with young women with cancer. Design, Setting, and Participants:This qualitative study used purposeful, maximum variation, and snowball sampling strategies to recruit 22 clinicians from cancer centers and community hospitals in 5 Canadian provinces, 5 practice areas, and 12 practice sites. Eligibility criteria included clinicians who regularly treat young women with cancer who might need fertility preservation. Telephone interviews that lasted between 30 to 75 minutes were conducted between May and November 2014 using a semistructured interview guide. Thematic analysis was used to discern the nature of barriers, and the Cabana framework was used to organize and interpret these findings. Analysis was conducted from May 2014 until May 2015. Main Outcomes and Measures:Clinician perspectives on what influences their nonadherence to American Society of Clinical Oncology guidelines, which recommend discussing fertility preservation with patients. Results:A total of 22 clinicians were interviewed, including 8 medical oncologists, 4 surgical oncologists, 4 fertility specialists, 3 hematology and oncology specialists, and 3 nurse practitioners or clinician nurse specialists. Seventeen clinicians were women and 5 clinicians were men; the median (range) time in practice was 10 (0.67-37) years. Analysis suggested that clinicians' unfamiliarity with infertility risks, fertility preservation technologies, referral processes, and procedures, as well as environmental factors and their perceptions of fertility preservation, influenced their practices regarding fertility discussions. Conclusions and Relevance:The findings of this qualitative study suggest that the individual and environmental challenges that clinicians experience might negatively affect their willingness and ability to raise fertility-related issues with young women with cancer. Multiple strategies are needed to address these challenges to improve overall care of young women with cancer.

Project description:BackgroundOffering ovarian function and/or fertility preservation strategies in premenopausal women with newly diagnosed breast cancer candidates to undergo chemotherapy is standard of care. However, few data are available on uptake and main reasons for refusing these options.MethodsThe PREFER study (NCT02895165) is an observational, prospective study enrolling premenopausal women with early breast cancer, aged between 18 and 45 years, candidates to receive (neo)adjuvant chemotherapy. Primary objective is to collect information on acceptance rates and reasons for refusal of the proposed strategies for ovarian function and/or fertility preservation available in Italy.ResultsAt the study coordinating center, 223 patients were recruited between November 2012 and December 2020. Median age was 38 years (range 24 - 45 years) with 159 patients (71.3%) diagnosed at ≤40 years. Temporary ovarian suppression with gonadotropin-releasing hormone agonists (GnRHa) was accepted by 58 out of 64 (90.6%) patients aged 41-45 years and by 151 out of 159 (95.0%) of those aged ≤40 years. Among patients aged ≤40 years, 57 (35.8%) accepted to access the fertility unit to receive a complete oncofertility counseling and 29 (18.2%) accepted to undergo a cryopreservation technique. Main reasons for refusal were fear of delaying the initiation of antineoplastic treatments and contraindications to the procedure or lack of interest in future childbearing. Patients with hormone-receptor positive breast cancer had a tendency for a higher acceptance rates of ovarian function and/or fertility preservation strategies than those with hormone-receptor negative disease.ConclusionsMore than 90% of premenopausal women with early breast cancer, and particularly those with hormone receptor-positive disease, were concerned about the potential risk of chemotherapy-induced premature ovarian insufficiency and/or infertility and accepted GnRHa administration. Less than 1 out of 5 women aged ≤40 years accepted to undergo cryopreservation strategies.

Dataset Information

FERTILITY PRESERVATION IN YOUNG WOMEN WITH EARLY-STAGE BREAST CANCER.

Publications

FERTILITY PRESERVATION IN YOUNG WOMEN WITH EARLY-STAGE BREAST CANCER.

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