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InfertilityPhase 4NCT00575302

Study of Optimal Posology of Gonadotrophins in Patients With Insufficient Ovarian Response Due to Age

A Phase 4 study testing Gonal-f®: follitropin alpha in people with Infertility, run by Centre Hospitalier Chretien at 4 sites in Belgium.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

In In vitro fertilization (IVF) treatment, poor responder patients of more than 38 years old are randomized prospectively into two dosages of gonadotrophins. The outcome of treatment will be analyzed. Read more about this study

Who is it for?
Ages 38 to 42 years, women only
Conditions the study is for
Infertility
What is being tested?
Gonal-f®: follitropin alpha
Could I receive a placebo?
No, everyone receives an active treatment
How many people
400 participants
Where
4 sitesBelgium
Study dates
Dec 2007to Dec 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 38 to 42 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Women > 38 years with insufficient response to stimulation with 225 IU of gonadotrophins (urinary or recombinant), in an agonist protocol.
  • Insufficient response is defined as: development of ≤ 4 mature follicles (of ≥ 16 mm) at time of hCG administration.
  • Patient can be eligible for several cycles in same protocol.

Who cannot join

  • Patients who already received doses > 225 IU
  • Patients older than 42 years
  • Patients with basal FSH concentrations ≥ 15 mU/ml at day 3

Trial locations and contacts

4 sites in 1 country.

Belgium4 sites
  • CHU Saint-Pierre

    Brussels, 1000

  • IMEC

    Brussels, 1180

  • UZ Gent

    Ghent, 9000

  • CHC Saint-Vincent

    Rocourt, Liège, 4000

Other trials in Belgium

About this study

In In vitro fertilization (IVF) treatment, poor responder patients of more than 38 years old are randomized prospectively into two dosages of gonadotrophins. The outcome of treatment will be analyzed.

Read the detailed description

Women > 38 years, who had an insufficient response to stimulation with regular (for age) posology of 225 IU of gonadotrophins (urinary or recombinant), in an agonist protocol will be randomized prospectively into 2 groups:

300 IU versus 450 IU of Gonal-f® administered in a short agonist protocol. Insufficient response is defined as: development of ≤ 4 mature follicles (of ≥ 16 mm) at time of hCG administration.

Patient can be eligible for several cycles in same protocol.

Conditions
Infertility
Being tested
Gonal-f®: follitropin alpha
Keywords
IVF, poor responder, recFSH, Fertilization in Vitro, Poor responders
Medical subject headings
Infertility

What participants receive

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

  • Gonal-f®: follitropin alphaDrug

    Gonal-f®: follitropin alpha, administration of 300 U

  • Gonal-f®: follitropin alphaDrug

    Gonal-f®: follitropin alpha, administration of 450 U

Study groups in NCT00575302
Study groupRoleWhat they receive
300Active comparatoradministration of 300 IU Gonal-f® in a short agonist protocol.
Receives: Drug: Gonal-f®: follitropin alpha
450Experimentaladministration of 450 IU Gonal-f® in a short agonist protocol.
Receives: Drug: Gonal-f®: follitropin alpha

What is being measured

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

  1. number of mature oocytes

    Measured: 1 month

Secondary outcomes (5)
  1. follicular development

    Measured: 1 month

  2. fertilization rate

    Measured: 1 month

  3. implantation rate

    Measured: 1 month

  4. embryo quality

    Measured: 1 month

  5. pregnancy 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 posted18 Dec 2007 (estimated)
  2. Study startDec 2007
  3. Primary completionDec 2009 (estimated)
  4. Study completionDec 2009 (estimated)

Why it stopped: 36 cases were included and the 4 centers and they are unable to increase their recruitment to obtain the 400 cases necessary to reach statistical significance.

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
400 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00575302
Sponsor's protocol ID
Study 300 versus 450
Status last verified
Apr 2010
First submitted
17 Dec 2007
Last updated
13 Apr 2010
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Gonal-f®: follitropin alpha in people with Infertility, run by Centre Hospitalier Chretien at 4 sites in Belgium.

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 3 inclusion and 3 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: withdrawn, as of the sponsor's last update on 13 Apr 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Belgium. 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 was withdrawn before enrolling participants, so there are no results.

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?

number of mature oocytes (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 13 Apr 2010.

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