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Letrozole in fertility

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https://www.readbyqxmd.com/read/28710053/stimulation-of-the-ovaries-in-women-with-breast-cancer-undergoing-fertility-preservation-alternative-versus-standard-stimulation-protocols-the-study-protocol-of-the-stim-trial
#1
T Dahhan, E M E Balkenende, C C M Beerendonk, K Fleischer, D Stoop, A M E Bos, C B Lambalk, R Schats, R J T van Golde, J Schipper, L A Louwe, A E P Cantineau, J M J Smeenk, J P de Bruin, N Reddy, Y Kopeika, F van der Veen, M van Wely, S C Linn, M Goddijn
BACKGROUND: Chemotherapy for breast cancer may have a negative impact on reproductive function due to gonadotoxicity. Fertility preservation via banking of oocytes or embryos after ovarian stimulation with FSH can increase the likelihood of a future live birth. It has been hypothesized that elevated serum estrogen levels during ovarian stimulation may induce breast tumour growth. This has led to the use of alternative stimulation protocols with addition of tamoxifen or letrozole. The effectiveness of these stimulation protocols in terms of oocyte yield is unknown...
July 11, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28650773/a-successful-live-birth-with-in-vitro-fertilization-and-thawed-embryo-transfer-after-conservative-treatment-of-recurrent-endometrial-cancer
#2
Sung Woo Kim, Hoon Kim, Seung-Yup Ku, Chang Suk Suh, Seok Hyun Kim, Young Min Choi
Estrogen-dependent early stage endometrial cancer is relatively common in young women of reproductive age. The standard treatment is hysterectomy and bilateral salpingo-oophorectomy (BSO), even in early stage well-differentiated endometrial cancer patients. This surgical option results in permanent loss of fertility. There have been some reports of live births using in vitro fertilization after conservative management of endometrial cancer with high-dose progestin for the purpose of fertility preservation. However, most were not recurrent cases and pregnancy was achieved through conventional in vitro fertilization, which usually raises serum estradiol levels and may lead to the recurrence of endometrial cancer...
June 26, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28629583/ex%C3%A2-vivo-retrieval-and-cryopreservation-of-oocytes-from-oophorectomized-specimens-for-fertility-preservation-in-a-brca1-mutation-carrier-with-ovarian-cancer
#3
Nigel Pereira, Andrea G Hubschmann, Jovana P Lekovich, Glenn L Schattman, Zev Rosenwaks
OBJECTIVE: To report a case of ex vivo oocyte retrieval from oophorectomized specimens in a BRCA1 mutation carrier undergoing surgical staging for ovarian cancer. DESIGN: Video case report and literature review. SETTING: University-affiliated center. PATIENT(S): A 37-year-old single woman, gravida 0, with a known BRCA1 mutation, presented to her oncologist with a complex right ovarian mass and elevated CA-125 level...
June 16, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28578791/letrozole-an-aromatase-inhibitor-reduces-post-peak-age-related-regression-of-rooster-reproductive-performance
#4
Emad Abdulgabbar Ali, Mahdi Zhandi, Armin Towhidi, Mojtaba Zaghari, Mahdi Ansari, Mojtaba Najafi, Hamid Deldar
This study was designed to evaluate orally administrated Letrozole (Lz) on reproductive performance, plasma testosterone and estradiol concentrations and relative abundance of mRNA of GnRH, FSH and LH in roosters. Ross 308 roosters (n=32) that were 40-weeks of age were individually housed and received a basal standard diet supplemented different amounts of capsulated Lz [0 (Lz-0), 0.5 (Lz-0.5), 1 (Lz-1) or 1.5 (Lz-1.5), mg Lz/bird/day] for 12 weeks. Sperm quality variables and plasma testosterone and estradiol concentrations were assessed from the first to the tenth week of the treatment period...
May 27, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28562472/gonadotropin-releasing-hormone-agonist-combined-with-a-levonorgestrel-releasing-intrauterine-system-or-letrozole-for-fertility-preserving-treatment-of-endometrial-carcinoma-and-complex-atypical-hyperplasia-in-young-women
#5
Huimei Zhou, Dongyan Cao, Jiaxin Yang, Keng Shen, Jinghe Lang
OBJECTIVES: The aim of this study was to evaluate the efficacy and safety with gonadotropin-releasing hormone agonist (GnRHa) combined with a levonorgestrel-releasing intrauterine system or an aromatase inhibitor (letrozole) in young women with well-differentiated early endometrial carcinoma (EC) and complex atypical hyperplasia (CAH). METHODS: We performed a retrospective analysis including the clinical characteristics of 29 patients younger than 45 years with early well-differentiated endometrioid adenocarcinoma of the uterus (EC) or CAH who were treated at the Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, from January 2012 to April 2016...
July 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28462402/letrozole-gnrh-antagonist-stimulation-protocol-in-poor-ovarian-responders-undergoing-intracytoplasmic-sperm-injection-cycles-an-rct
#6
Mahbod Ebrahimi, Firouzeh Akbari-Asbagh, Mojgan Ghalandar-Attar
BACKGROUND: Gonadotropin-releasing hormone (GnRH) antagonist protocol has been proposed as a potentially proper option for the patients with limited ovarian reserve. Nevertheless, there is no significant difference in terms of clinical pregnancy between the GnRH antagonist and agonist cycles. The use of aromatase inhibitors such as letrozole was suggested by some studies. OBJECTIVE: The object of this study was to evaluate the efficacy of letrozole co-treatment with GnRH-antagonist protocol in ovarian stimulation of poor responder patients undergoing intracytoplasmic sperm injection...
February 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28333356/the-safety-and-efficacy-of-controlled-ovarian-hyperstimulation-for-fertility-preservation-in-women-with-early-breast-cancer-a-systematic-review
#7
Rachael J Rodgers, Geoffrey D Reid, Juliette Koch, Rebecca Deans, William L Ledger, Michael Friedlander, Robert B Gilchrist, Kirsty A Walters, Jason A Abbott
STUDY QUESTION: Can controlled ovarian hyperstimulation (COH) for fertility preservation be effectively conducted in women with breast cancer without worsening their prognosis? SUMMARY ANSWER: COH with co-administration of letrozole suppresses oestradiol levels without significantly impacting oocyte yield or decreasing disease-free survival rates. WHAT IS KNOWN ALREADY: Oestradiol has the capacity to stimulate the proliferation of breast cancer cells...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28236310/clomiphene-and-letrozole-for-reducing-fsh-consumption-during-ovarian-stimulation-systematic-review-and-meta-analysis
#8
REVIEW
Tatiana N B Marcal, Mariane N Nadai, Carolina O Nastri, Wellington P Martins
OBJECTIVE: to assess the available evidence comparing effectiveness of ovarian stimulation (OS) using clomiphene (CC) and/or letrozole (LTZ) for reducing FSH consumption compared with standard OS. METHODS: We performed a systematic review and meta-analyses of randomized controlled trials (RCTs) that compared the reproductive outcomes following in vitro fertilization. We searched eleven electronic databases and hand-searched the reference list of included studies and related reviews...
February 25, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28122888/response-to-ovarian-stimulation-is-not-impacted-by-a-breast-cancer-diagnosis
#9
Molly M Quinn, Hakan Cakmak, Joseph M Letourneau, Marcelle I Cedars, Mitchell P Rosen
STUDY QUESTION: Does a breast cancer diagnosis impact ovarian function in the setting of fertility preservation? SUMMARY ANSWER: Ovarian reserve and ovarian stimulation outcomes are similar in patients with a new diagnosis of breast cancer and patients undergoing elective fertility preservation. WHAT IS KNOWN ALREADY: Prior studies, with small study populations, lack of controlling for individual differences in ovarian reserve and infertile controls, have reported conflicting outcomes for cancer patients undergoing ovarian stimulation for fertility preservation...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28089575/association-of-uterine-fibroids-and-pregnancy-outcomes-after-ovarian-stimulation-intrauterine-insemination-for-unexplained-infertility
#10
RANDOMIZED CONTROLLED TRIAL
Aaron K Styer, Susan Jin, Dan Liu, Baisong Wang, Alex J Polotsky, Mindy S Christianson, Wendy Vitek, Lawrence Engmann, Karl Hansen, Robert Wild, Richard S Legro, Christos Coutifaris, Ruben Alvero, Randal D Robinson, Peter Casson, Gregory M Christman, Alicia Christy, Michael P Diamond, Esther Eisenberg, Heping Zhang, Nanette Santoro
OBJECTIVE: To investigate the association of non-cavity-distorting uterine fibroids and pregnancy outcomes after ovarian stimulation-intrauterine insemination (OS-IUI) in couples with unexplained infertility. DESIGN: Secondary analysis from a prospective, randomized, multicenter clinical trial investigating fertility outcomes after OS-IUI. SETTING: Reproductive Medicine Network clinical sites. PATIENT(S): Nine hundred couples with unexplained infertility who participated in the Assessment of Multiple Intrauterine Gestations from Ovarian Stimulation (AMIGOS) clinical trial...
March 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28076829/comparing-the-effect-of-aromatase-inhibitor-letrozole-cabergoline-dostinex-and-letrozole-alone-on-uterine-myoma-regression-a-randomized-clinical-trial
#11
M Sayyah-Melli, M Mobasseri, P M Gharabaghi, E Ouladsahebmadarek, V Rahmani
OBJECTIVE: To evaluate the effect of letrozole in combination with cabergoline and letrozole alone on regression of symptomatic uterine myomas in women of reproductive age. DESIGN: Randomized controlled clinical trial. SETTING: University hospital. PATIENTS: Ninety-one women of reproductive age were enrolled in the study and 88 women were eligible. Eight participants were excluded from the study. INTERVENTIONS: Eighty women of reproductive age with symptomatic myomas >4cm were evaluated in two groups...
March 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27821708/no-increased-risk-of-major-congenital-anomalies-or-adverse-pregnancy-or-neonatal-outcomes-following-letrozole-use-in-assisted-reproductive-technology
#12
T Tatsumi, S C Jwa, A Kuwahara, M Irahara, T Kubota, H Saito
STUDY QUESTION: Does letrozole use increase the risk of major congenital anomalies and adverse pregnancy and neonatal outcomes in fresh, single-embryo transfer? SUMMARY ANSWER: Letrozole significantly decreases the risk of miscarriage and does not increase the risk of major congenital anomalies or adverse pregnancy or neonatal outcomes compared with natural cycles in patients undergoing ART. WHAT IS KNOWN ALREADY: Letrozole is the most commonly used aromatase inhibitor for mild ovarian stimulation in ART...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27695608/aromatase-inhibitors-for-endometriosis-associated-infertility-do-we-have-sufficient-evidence
#13
REVIEW
Hatem Abu Hashim
Orally active aromatase inhibitors (AIs) have gained attention for treatment of infertile women with endometriosis in whom aromatase p450 is aberrantly expressed. This review aimed to critically appraise and summarize the available evidence concerning the use of AIs for management of endometriosis-associated infertility. PubMed was searched to May 2015 with the following key words: endometriosis, infertility and aromatase. Priority was given for randomized controlled trials (RCTs) followed by other study designs...
October 2016: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/27685935/oocyte-cryopreservation-for-fertility-preservation-in-women-with-cancer
#14
Javier Domingo, Juan A Garcia-Velasco
PURPOSE OF REVIEW: It is necessary to clarify the fertility preservation-related points of concern that often frighten patients or physicians when it comes to deciding about oocyte cryopreservation for fertility preservation, which are often perceived as procedure limitations, are sometimes real and often theoretical and may make the prognosis worse. RECENT FINDINGS: Letrozole added to gonadotrophins for controlled ovarian stimulation is safe when applied to hormone-sensitive cancer patients as it avoids associated high estradiol levels...
December 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27511809/the-management-of-anovulatory-infertility-in-women-with-polycystic-ovary-syndrome-an-analysis-of-the-evidence-to-support-the-development-of-global-who-guidance
#15
REVIEW
Adam H Balen, Lara C Morley, Marie Misso, Stephen Franks, Richard S Legro, Chandrika N Wijeyaratne, Elisabet Stener-Victorin, Bart C J M Fauser, Robert J Norman, Helena Teede
BACKGROUND: Here we describe the consensus guideline methodology, summarise the evidence-based recommendations we provided to the World Health Organisation (WHO) for their consideration in the development of global guidance and present a narrative review on the management of anovulatory infertility in women with polycystic ovary syndrome (PCOS). OBJECTIVE AND RATIONALE: The aim of this paper was to present an evidence base for the management of anovulatory PCOS...
November 2016: Human Reproduction Update
https://www.readbyqxmd.com/read/27488701/a-comparison-among-different-methods-of-letrozole-combined-with-gonadotropin-in-an-antagonist-protocol-and-high-dose-gonadotropin-ovarian-stimulation-antagonist-protocol-in-poor-ovarian-responders-undergoing-in-vitro-fertilization
#16
Rui Yang, Hongzhen Li, Rong Li, Ping Liu, Jie Qiao
PURPOSE: This study aimed at comparing the effects of different methods of letrozole combined with gonadotropin (Gn) and high-dose Gn ovarian stimulation in antagonist protocol. METHODS: Retrospectively reviewed 220 poor responders from August 2012 to July 2014 at Peking University Third Hospital Reproductive Medical Center. Patients were divided into Group 1 (LZ 5 mg for 5 days sequentially overlapping with Gn cycles; n = 60), group 2 (LZ 7.5 mg for 3 days sequentially with Gn cycles; n = 60), and group 3 (high-dose Gn cycles; n = 100)...
November 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27428850/fertility-preservation-in-women-with-borderline-ovarian-tumours
#17
REVIEW
Giorgia Mangili, Edgardo Somigliana, Veronica Giorgione, Fabio Martinelli, Francesca Filippi, Maria Cristina Petrella, Massimo Candiani, Fedro Peccatori
Borderline ovarian tumours (BOT) may occur in young women and have an excellent survival rate. Therefore, there is the obligation to put emphasis on fertility preservation in affected women. On the other hand, it has also been underlined that the disease should be managed with caution because these tumours can relapse and, albeit rare, malignant transformation can also occur. Unfortunately, evidence on fertility preservation in women with BOT is scanty. In this opinion paper, we tried to draw some clinical indications based on the few available studies on the clinical management of BOT and their possible relation with controlled ovarian hyper-stimulation (COH)...
September 2016: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/27402910/fertility-related-quality-of-life-from-two-rct-cohorts-with-infertility-unexplained-infertility-and-polycystic-ovary-syndrome
#18
Nanette Santoro, Esther Eisenberg, J C Trussell, LaTasha B Craig, Clarisa Gracia, Hao Huang, Ruben Alvero, Peter Casson, Gregory Christman, Christos Coutifaris, Michael Diamond, Susan Jin, Richard S Legro, Randal D Robinson, William D Schlaff, Heping Zhang
STUDY QUESTION: Does fertility-related quality of life (FertiQOL) differ by infertility diagnosis between women with polycystic ovary syndrome (PCOS) and their partners, compared with couples with unexplained infertility (UI)? SUMMARY ANSWER: Women with PCOS report lower QOL than those with UI, whereas males with UI report lower QOL than males with PCOS partners. WHAT IS KNOWN ALREADY: The fertility-specific QOL survey, FertiQOL, has been used to examine fertility-related QOL in a number of worldwide cohorts...
October 2016: Human Reproduction
https://www.readbyqxmd.com/read/27236602/a-randomized-single-blind-prospective-trial-comparing-three-different-gonadotropin-doses-with-or-without-addition-of-letrozole-during-ovulation-stimulation-in-patients-with-poor-ovarian-response
#19
RANDOMIZED CONTROLLED TRIAL
Ercan Bastu, Faruk Buyru, Mehmet Ozsurmeli, Irem Demiral, Murat Dogan, John Yeh
OBJECTIVE: The aim of this randomized controlled trial (RCT) was to investigate whether IVF outcomes would differ between patients with POR who received three different gonadotropin doses with or without the addition of letrozole during ovulation stimulation. STUDY DESIGN: Only those who fulfilled two of the three Bologna criteria were included to the study. 95 patients met the inclusion criteria and agreed to participate in the study. In the first group, 31 patients were treated with 450IU gonadotropins...
August 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27172763/twin-delivery-after-ivf-et-with-variable-dose-letrozole-fsh-protocol-of-lower-estradiol-in-a-patient-previously-treated-for-breast-cancer-a-case-report
#20
Chang-Jun Zhang, Ying Zhang, Guang-Zhu Hu, Honglu Diao
OBJECTIVE: To present a case of twin pregnancy obtained by in vitro fertilization and embryo transfer (IVF-ET) with variable dose letrozole-FSH protocol of lower peak estradiol level, after treatment of carcinoma of the breast. MATERIALS AND METHODS: A 34-year-old patient diagnosed with mucinous breast carcinoma undergoing assisted fertilization treatment after breast cancer operation and treatment including controlled ovarian stimulation (COS), oocyte retrieval, IVF, and embryo culture and transfer...
2016: European Journal of Gynaecological Oncology
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