Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
To investigate the effect of letrozole in patients who have high risk of ovarian hyperstimulation syndrome (OHSS) after oocyte retrieval, the incidence of OHSS were calculated between letrozole group and supporting treatment group.
Object:
Infertility patients who frozen all embryos due to the risk of OHSS were randomized allocated to letrozole or polygeline injection group. Inclusion criteria meet one of the following conditions: (1) oocyte is more than or equal to 20; (2) human chorionic gonadotropin (hCG) injection on serum estradiol levels greater than or equal to 5000 pmol/L; (3) on the day of oocyte unilateral or bilateral ovarian diameter greater than or equal to 10 cm (4) follicle puncture is larger than or equal to number 20. After the informed consent was signed, letrozole or polygeline injection was randomized allocated after oocyte retrieval. OHSS was determined according to Golan diagnosis standards.
Clinical data:
Including age, infertility duration, body mass index (BMI), basic follicle-stimulating hormone (FSH) and luteinizing hormone (LH), antral follicle number (AFC), Gn dosage, estradiol level on hCG injection day, the number of oocytes, the number of embryos, early onset OHSS incidence, and the existence of ascites.
Reproductive hormone levels:
1, 4, 7, days after taken letrozole, and the supernatant was collected for serum reproductive hormone test.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| letrozole | Active Comparator | 2.5mg/tablet(Jiangsu Hengrui Medicine Co., Ltd. products), orally taken 5mg once a day for 5 days |
|
| Polygeline Injection | Other | 500ml and 0.9% Sodium Chloride Injection (250ml) with dexamethasone 1mg intravenous injection，once a day for 2 days |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Letrozole | Drug | used after oocyte retrieval |
|
|
| Measure | Description | Time Frame |
|---|---|---|
| The incidence of early OHSS | one year |
Not provided
Not provided
Inclusion criteria:
4. follicle puncture is larger than or equal to number 20.
Exclusion criteria:
Allergic to the letrozole or polygeline.
Not provided
Not provided
Not provided
Not provided
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Yu Wang, PhD | Contact | +86-18604718958 | wuai1544@163.com |
| Name | Affiliation | Role |
|---|---|---|
| Yu Wang, PhD | Inner Mongolia Medical University affiliated Hospital | Principal Investigator |
| Xiujuan Chen, MD | Inner Mongolia Medical University affiliated Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The Affiliated Hospital of Inner Mongolia Medical University | Inner Mongolia | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25608991 | Background | He Q, Xu J, Cui S, Li H, Zhang C. [Relationship between letrozole administration during the luteal phase after oocyte retrieval and the early-stage ovarian hyperstimulation syndrome oocurrence]. Zhonghua Fu Chan Ke Za Zhi. 2014 Dec;49(12):909-13. Chinese. | |
| 24343064 | Background | Wang YQ, Yang J, Xu WM, Xie QZ, Yan WJ, Yin TL, Cheng D, Xiao ZN, Li J. [Luteal letrozole administration decreases serum estrogen level but not the risk of ovarian hyperstimulation syndrome]. Beijing Da Xue Xue Bao Yi Xue Ban. 2013 Dec 18;45(6):869-72. Chinese. |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D016471 | Ovarian Hyperstimulation Syndrome |
| ID | Term |
|---|---|
| D010049 | Ovarian Diseases |
| D000291 | Adnexal Diseases |
| D005831 | Genital Diseases, Female |
| D052776 | Female Urogenital Diseases |
Not provided
Not provided
| ID | Term |
|---|---|
| D000077289 | Letrozole |
| D011097 | Polygeline |
| D012965 | Sodium Chloride |
| D003907 | Dexamethasone |
| ID | Term |
|---|---|
| D009570 | Nitriles |
| D009930 | Organic Chemicals |
| D014230 | Triazoles |
| D001393 | Azoles |
| D006573 |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Polygeline | Drug | used after oocyte retrieval |
|
|
| Sodium Chloride | Drug | used after oocyte retrieval |
|
|
| dexamethasone | Drug | used after oocyte retrieval |
|
|
| 21605857 | Background | Wiwanitkit V. Letrozole and gonadotropins versus luteal estradiol and GnRH-antagonist protocol: additional concerns. Fertil Steril. 2011 Jun 30;95(8):e78; author reply e80. doi: 10.1016/j.fertnstert.2011.05.009. Epub 2011 May 24. No abstract available. |
| 21514582 | Background | Elassar A, Engmann L, Nulsen J, Benadiva C. Letrozole and gonadotropins versus luteal estradiol and gonadotropin-releasing hormone antagonist protocol in women with a prior low response to ovarian stimulation. Fertil Steril. 2011 Jun;95(7):2330-4. doi: 10.1016/j.fertnstert.2011.03.103. Epub 2011 Apr 22. |
| 19515366 | Background | Montville CP, Khabbaz M, Aubuchon M, Williams DB, Thomas MA. Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction. Fertil Steril. 2010 Jul;94(2):678-83. doi: 10.1016/j.fertnstert.2009.03.088. Epub 2009 Jun 9. |
| 18764999 | Background | Fatemi HM, Popovic-Todorovic B, Donoso P, Papanikolaou E, Smitz J, Devroey P. Luteal phase oestradiol suppression by letrozole: a pilot study in oocyte donors. Reprod Biomed Online. 2008 Sep;17(3):307-11. doi: 10.1016/s1472-6483(10)60212-x. |
| 18710719 | Background | Garcia-Velasco JA, Quea G, Piro M, Mayoral M, Ruiz M, Toribio M, Requena A. Letrozole administration during the luteal phase after ovarian stimulation impacts corpus luteum function: a randomized, placebo-controlled trial. Fertil Steril. 2009 Jul;92(1):222-5. doi: 10.1016/j.fertnstert.2008.04.042. Epub 2008 Aug 16. |
| 18427974 | Background | Sh Tehrani Nejad E, Abediasl Z, Rashidi BH, Azimi Nekoo E, Shariat M, Amirchaghmaghi E. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial. J Assist Reprod Genet. 2008 May;25(5):187-90. doi: 10.1007/s10815-008-9209-2. Epub 2008 Apr 19. |
| 17387700 | Background | Ortiz ME, Ortiz RE, Garfield R, Zepeda AJ, Croxatto HB. Progesterone, but not luteal estrogen, is required for the establishment of pregnancy in the new world monkey Cebus apella. Am J Primatol. 2007 Oct;69(10):1131-40. doi: 10.1002/ajp.20408. |
| 16978619 | Background | Barroso G, Menocal G, Felix H, Rojas-Ruiz JC, Arslan M, Oehninger S. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphene citrate as adjuvants to recombinant follicle-stimulating hormone in controlled ovarian hyperstimulation: a prospective, randomized, blinded clinical trial. Fertil Steril. 2006 Nov;86(5):1428-31. doi: 10.1016/j.fertnstert.2006.03.044. Epub 2006 Sep 14. |
| 14680546 | Background | Fatemi HM, Kolibianakis E, Tournaye H, Camus M, Van Steirteghem AC, Devroey P. Clomiphene citrate versus letrozole for ovarian stimulation: a pilot study. Reprod Biomed Online. 2003 Nov;7(5):543-6. doi: 10.1016/s1472-6483(10)62070-6. |
| D005261 |
| Female Urogenital Diseases and Pregnancy Complications |
| D000091642 | Urogenital Diseases |
| D000091662 | Genital Diseases |
| D006058 | Gonadal Disorders |
| D004700 | Endocrine System Diseases |
| Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D011108 | Polymers |
| D046911 | Macromolecular Substances |
| D010455 | Peptides |
| D000602 | Amino Acids, Peptides, and Proteins |
| D001697 | Biomedical and Dental Materials |
| D008420 | Manufactured Materials |
| D013676 | Technology, Industry, and Agriculture |
| D002712 | Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |
| D011246 | Pregnadienetriols |
| D011245 | Pregnadienes |
| D011278 | Pregnanes |
| D013256 | Steroids |
| D000072473 | Fused-Ring Compounds |
| D011083 | Polycyclic Compounds |
| D013259 | Steroids, Fluorinated |