Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF ) Freely available
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (21)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Engel, J.B.
Right arrow Articles by Diedrich, K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Engel, J.B.
Right arrow Articles by Diedrich, K.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Human Reproduction, Vol. 17, No. 8, 2022-2026, August 2002
© 2002 European Society of Human Reproduction and Embryology

Use of cetrorelix in combination with clomiphene citrate and gonadotrophins: a suitable approach to ‘friendly IVF’?

J.B. Engel, M. Ludwig,1, R. Felberbaum, C. Albano, P. Devroey and K. Diedrich

Division of Reproductive Medicine and Gynecologic Endocrinology, Department of Gynecology and Obstetrics, University Clinic, Ratzeburger Allee 160, 23538 Lübeck, Germany

BACKGROUND: With the recently introduced GnRH antagonists, soft stimulation protocols on the basis of clomiphene pretreatment should be possible as the pituitary remains fully sensitive at the beginning of the cycle. METHODS: A prospective trial was carried out on 107 patients undergoing IVF treatment using the multiple dose GnRH antagonist protocol (cetrorelix), clomiphene citrate, and either HMG (n = 54) or recombinant FSH (rFSH) (n = 53). Different stimulation protocols were used to find the most appropriate one for clinical application. RESULTS: Both treatment groups, HMG and rFSH, yielded comparable results concerning gonadotrophin dose, stimulation days and pregnancy rate. A mean number of 6.34 ± 4.4 metaphase II oocytes was retrieved and a mean number of 2.45 ± 0.65 embryos was transferred. However, the overall rate of premature LH surges was 21.5% (defined as measurement of LH >10 IU/l and progesterone >1 ng/ml) which is unacceptable for clinical practice. CONCLUSIONS: Increasing the daily cetrorelix dose from 0.25 to 0.5 mg might decrease the number of premature LH surges. Soft stimulation protocols with clomiphene should be used cautiously.

Key words: cetrorelix/clomiphene/COS/friendly IVF/GnRH antagonist

1 To whom correspondence should be addressed. E-mail: ludwig_m{at}t-online.de


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Hum Reprod UpdateHome page
I. E. Messinis
Ovarian feedback, mechanism of action and possible clinical implications
Hum. Reprod. Update, September 1, 2006; 12(5): 557 - 571.
[Abstract] [Full Text] [PDF]

Home page
 Endocr. Rev.Home page
N. S. Macklon, R. L. Stouffer, L. C. Giudice, and B. C. J. M. Fauser
The Science behind 25 Years of Ovarian Stimulation for in Vitro Fertilization
Endocr. Rev., April 1, 2006; 27(2): 170 - 207.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.