Comparison Between GnRH Agonist and GnRH Antagonist Protocols of Ovarian Stimulation in PCOS Patients
The purpose of this study is to compare pregnancy rates and the occurrence of OHSS in PCOS patients who were treated with GnRH agonist and GnRH antagonist protocols ovarian stimulation during an IVF cycle. Our hypothesis is that the GnRH antagonist protocol reduces the occurrence and severity of OHSS compared to the GnRH agonist protocol.
Women with polycystic ovarian syndrome (PCOS) represent a group of patients at high risk of developing ovarian hyperstimulation syndrome (OHSS), an iatrogenic complication of ovarian stimulation during IVF treatment. In contrast to mild OHSS, severe OHSS is a life-threatening complication, characterized by massive ovarian enlargement, ascites, pleural effusion, oliguria, haemoconcentration and thromboembolic phenomena. Currently, no curative therapy for OHSS is available and thus prevention is considered the most effective “treatment”. Several measures have been adopted to reduce the occurrence of the syndrome, the most effective being cycle cancellation and withholding of human chorionic gonadotropin (hCG), which seems to be the most critical factor for the development of OHSS.
COMPARISON: This study aims to compare the development and severity of OHSS, as well as ongoing pregnancy rates in PCOS patients who received a flexible GnRH antagonist (Ganirelix) protocol vs a long GnRH agonist (Arvekap) protocol of ovarian stimulation.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
Polycystic Ovary Syndrome
Arvekap 0.1mg (Triptorelin, Ipsen, France), Ganirelix 0.25mg (Orgalutran, Organon, The Netherlands)
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00417144
- Information obtained from ClinicalTrials.gov on July 15, 2010
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Medical and Biotech [MESH] Definitions
A potent synthetic long-acting agonist of GONADOTROPIN-RELEASING HORMONE with D-tryptophan substitution at residue 6.
One of the Indian Ocean Islands, east of Madagascar. Its capital is Saint-Denis. It was discovered in 1507 by the Portuguese and claimed by France in 1638. It was first colonized in 1662 as Isle de Bourbon but renamed Reunion in 1793. In 1946 it was made an overseas department of France. The name commemorates the reunion of the revolutionaries from Marseilles with the National Guard in Paris in 1792. (From Webster's New Geographical Dictionary, 1988, p1011; Room, Brewer's Dictionary of Names, 1992, p454; French Embassy)
Conflict between RUSSIA (Pre-1917); the OTTOMAN EMPIRE; ENGLAND; FRANCE; and Sardinia.
Parliamentary democracy located between France on the northeast and Portugual on the west and bordered by the Atlantic Ocean and the Mediterranean Sea.
A principality in the Pyrenees between France and Spain. Its capital is also called Andorra. (From Webster's New Geographical Dictionary, 1988, p50)