A pilot study involving minimal ovarian stimulation for in vitro fertilization: extending the "follicle-stimulating hormone window" combined with the gonadotropin-releasing hormone antagonist cetrorelix


de Jong, D., Macklon, N.S. and Fauser, B.C. (2000) A pilot study involving minimal ovarian stimulation for in vitro fertilization: extending the "follicle-stimulating hormone window" combined with the gonadotropin-releasing hormone antagonist cetrorelix. Fertility and Sterility, 73, (5), 1051-1054. (doi:10.1016/S0015-0282(00)00414-3). (PMID:11704146).

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Description/Abstract

Objective: To study whether minimal interference in the process of selection of the single dominant follicle may serve as the basis for a simplified ovarian stimulation regimen for IVF.

Design: Single-center randomized pilot study.

Setting: Tertiary referral fertility center.

Patient(s): Fifteen normo-ovulatory patients with a regular indication for IVF.

Intervention(s): Ovarian stimulation for IVF was begun with 100 or 150 IU/d recombinant FSH starting on cycle day 5. From cycle day 8 or later, cotreatment was begun with 0.25 mg/d GnRH antagonist. No luteal support was provided.

Main Outcome Measure(s): Total number of dominant follicles and characteristics of the endocrine cycle.

Result(s): Multiple follicle development occurred in five of eight patients in the 100-IU group and in all seven women in the 150-IU group. Follicular phase and luteal phase lengths were normal, but the endocrine profile was abnormal.

Conclusion(s): A fixed daily dose of 150 IU recombinant FSH starting in the midfollicular phase resulted in ongoing growth of a restricted number of dominant follicles and sufficient oocytes retrieved to lead to ET. A marked reduction in the total amount of gonadotropins administered compared with standard treatment was achieved. Withholding luteal support did not exclude pregnancies.

Item Type: Article
ISSNs: 0015-0282 (print)
Keywords: ivf, recombinant fsh, gnrh antagonist, minimal ovarian stimulation
Subjects: R Medicine > RG Gynecology and obstetrics
R Medicine > RM Therapeutics. Pharmacology
Divisions: University Structure - Pre August 2011 > School of Medicine > Developmental Origins of Health and Disease
ePrint ID: 185683
Date Deposited: 20 May 2011 08:17
Last Modified: 27 Mar 2014 19:40
URI: http://eprints.soton.ac.uk/id/eprint/185683

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