ClinicalTrials.Veeva

Menu

Comparison of the Long GnRH Agonist Protocol and the Flexible GnRH Antagonist Protocol of Ovarian Stimulation

E

Eugonia

Status and phase

Unknown
Phase 4

Conditions

Infertility

Treatments

Drug: Ganirelix 0.25 (Orgalutran, Organon, The Netherlands)
Drug: Arvekap 0.1 mg (Triptorelin, Ipsen, France)

Study type

Interventional

Funder types

Other

Identifiers

NCT00417183
long vs flexible

Details and patient eligibility

About

The purpose of this study is to compare the efficacy of two controlled ovarian stimulation protocols, the GnRH agonist protocol, widely known as the "long" protocol, and the flexible GnRH antagonist protocol, in terms of pregnancy rates and embryological data, in infertile patients receiving IVF treatment.

Full description

The formulation of controlled ovarian stimulation protocols is one of the primary reasons for the successful development of IVF. The "long" GnRH agonist protocol, also known as the gold standard, has been widely used with considerable success. More recently, on the other hand, GnRH antagonist provide a new promising approach for endogenous gonadotrophin suppression by blocking the GnRH receptor. There is conflicting data in the literature regarding the relative merits of the two ovarian stimulation protocols.

COMPARISON: Pregnancy rates and embryological data will by assessed in IVF patients treated with either the "long" GnRH agonist (Arvekap) or the flexible GnRH antagonist (Ganirelix) protocol.

Sex

Female

Ages

21 to 39 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Age 18-39 years
  • Body mass index 18-29 kg/m2
  • Menstrual cycle from 24-35 days
  • Normal basal FSH (<10 IU/ml)
  • Normal basal LH (<10 IU/ml)
  • Normal basal estradiol (<80 pg/ml)

Exclusion criteria

  • Poor responder patients
  • Polycystic ovaries

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

Trial contacts and locations

1

Loading...

Central trial contact

Tryfon Lainas, PhD

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems