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InfertilityPhase 4NCT00633347

Use of Antagonist Versus Agonist GnRH in Oocyte Recipient Endometrium Preparation

A Phase 4 study testing Antagonist GnRH Cetrotide and Agonist GnRH Acetate Triptoreline in people with Infertility, run by Instituto Valenciano de Infertilidad, IVI VALENCIA at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Oocyte donation is a well established procedure in assisted reproduction treatments (ART). It is demonstrated that the use of hormonal substitution therapy, for the synchronization of the cycles between the recipients and the donors, provides good results, similar to the ones obtained with the natural cycle. Read more about this study

Who is it for?
Ages 18 to 44 years, women onlyHealthy volunteers can take part
Conditions the study is for
Infertility
What is being tested?
Antagonist GnRH Cetrotide and Agonist GnRH Acetate Triptoreline
Could I receive a placebo?
No, everyone receives an active treatment
How many people
570 participants
Where
1 siteSpain
Study dates
Jan 2007to Oct 2009
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 44 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • infertile females with preserved gonadal function
  • ages 18 - 43 years old

Who cannot join

  • BMI: > 28
  • recurrent miscarriages
  • severe male factor
  • important miomas
  • > 44 years old

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • IVI Valencia

    Valencia, 46015

Other trials in Spain

About this study

Oocyte donation is a well established procedure in assisted reproduction treatments (ART). It is demonstrated that the use of hormonal substitution therapy, for the synchronization of the cycles between the recipients and the donors, provides good results, similar to the ones obtained with the natural cycle. In the patients - recipients with preserved ovarian function, the recipient's natural cycle is annulled, thus preventing the spontaneous Luteinizing Hormone surge. Simultaneously and while waiting for the suitable donor, her endometrium is prepared. When the donation occurs and fertilization with the husband sperm takes place, her cycle is stimulated again in order to synchronize her window of implantation with the donor's ovulation.

Two different medications are commonly used to inhibit spontaneous ovulation: either GnRHa agonist or GnRH antagonists. The present study consists of the comparison between the single dose GnRH agonist (Decapeptyl 3,75 IM) and the 7 day dosage of GnRH antagonist (Cetrotide 0,25 mg). The administration of GnRHa is used fundamentally as a long liberation formulation, administered in a single intramuscular injection (IM), which is more practical in terms of use. Nevertheless, the unnecessary persistence and the potentially unfavorable action of GnRHa during the luteal phase and early gestation have questioned its use. The recovery of the Hypophysarian function begins only 8 weeks after the single injection of long liberation of triptorelina 3.75 mg. The GnRH antagonist (Cetrotide 0,25 mg) makes the hypofisary inhibition shorter than with the analogues and can prepare similar endometrium characteristics as a natural cycle. The recipients will be assigned randomly to a group of treatment or another.

Conditions
Infertility
Being tested
Antagonist GnRH Cetrotide, Agonist GnRH Acetate Triptoreline
Keywords
oocyte donation, endometrial preparation
Medical subject headings
Infertility

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Antagonist GnRH CetrotideDrug

    Cetrotide 0.25 mg. daily/ 7 days

  • Agonist GnRH Acetate TriptorelineDrug

    Acetate Triptorelina (Agonist GnRH), 3.75 mg. single dose

Study groups in NCT00633347
Study groupRoleWhat they receive
AActive comparatorA: Antagonist
Receives: Drug: Antagonist GnRH Cetrotide; Drug: Agonist GnRH Acetate Triptoreline
BActive comparatorAgonist GnRH
Receives: Drug: Agonist GnRH Acetate Triptoreline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. clinical pregnancy rate

    Measured: 1 month

Secondary outcomes (1)
  1. implantation rate

    Measured: 1 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Mar 2008 (estimated)
  2. Study startJan 2007
  3. Primary completionOct 2009
  4. Study completionOct 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
570 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00633347
Sponsor's protocol ID
VLC-CV-1006-02
Status last verified
Feb 2013
First submitted
21 Feb 2008
Last updated
15 Feb 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Antagonist GnRH Cetrotide and Agonist GnRH Acetate Triptoreline in people with Infertility, run by Instituto Valenciano de Infertilidad, IVI VALENCIA at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Feb 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

clinical pregnancy rate (time frame: 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Feb 2013.

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