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CompletedNCT01100333Updated Jul 31, 2014

GONAL-f CONSORT (Consistency in r-hFSH Starting Doses for Individualised Treatment)

An observational study in Infertility, sponsored by Merck KGaA, Darmstadt, Germany. Completed at 1 site in Germany. Open to female participants aged Up to 35 Years. Per ClinicalTrials.gov, last updated 2014-07-31.

Sponsored by Merck KGaA, Darmstadt, Germany · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2,552
Ages
Up to 35 Years
Sex
Female
01

Study summary

This non-interventional study (NIS) is planned to examine the consistency of the dose recommended by the doctor for the first stimulation day with the dose recommended by the CONSORT calculator.

Read the detailed description

Since the introduction of the first recombinant human follicle stimulating hormone (FSH) preparation Gonal-f in the year 1996, a pure drug is available as raw material, which is independent of human urine due to biotechnological methods and consequently can be produced free of contaminating proteins. In accordance with the recommendations of European Medicines Agency (EMEA) in February 1999, on the basis of data from clinical studies, Gonal-f should be regarded as the more effective preparation in comparison to urinary FSH. Serono has developed a dose calculator, the CONSORT calculator, after analyzing the data from clinical studies for Gonal-f. This non-interventional study is planned to examine the consistency of the dose recommended by the doctor for the first stimulation day with the dose recommended by the CONSORT calculator. All subjects, who undergo stimulation with Gonal-f in preparation for a technology of the assisted conception in accordance with the permitted indication, will be included in this non-interventional study.

OBJECTIVES

Primary Objective:

  • To examine, how far the dose recommended by the doctor for the first stimulation day varies from the dose recommended by the CONSORT calculator
02

Conditions studied

  • Infertility

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Keywords

  • Infertility
  • Reproductive technologies, Assisted
  • r-hFSH
  • Gonal-f
03

In context

Infertility

2,541 studies on the registry are indexed under Infertility; 405 are open to participants now.

This study's enrollment of 2,552 is above the median of 200 across 722 observational studies indexed under Infertility.

Browse Infertility studies →

Lead sponsor

Merck KGaA, Darmstadt, Germany is the lead sponsor of 275 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 35 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Subjects undergoing Assisted Reproductive Technologies (ART) receiving Gonal-f in Germany

Eligibility criteria

Inclusion Criteria:

  • Female subjects undergoing stimulation with Gonal-f in ART in accordance with the permitted indication
  • Subjects below 35 years of age
  • Subjects who have a Body mass index below 30
  • Subjects with a basal FSH below 12 I.E./l and is downregulated in the long gonadotropin hormone releasing hormone agonist (GnRHa) Protocol
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
2,552 participants (actual)
Biospecimen retention
Samples without dna

Interventions

06

What researchers measure

Primary outcomes

  1. Consistency of dose of Gonal-f recommended by the doctor for the first stimulation day with the dose recommended by the CONSORT calculator

    Time frame: 6 month

Secondary outcomes

  1. Efficacy parameters

    Total dose and the necessity of a dose adjustment during stimulation period, number of the obtained ova after hCG administration, the duration of the stimulation,stimulation dose on the last stimulation day

    Time frame: 6 month

07

Study locations

1 site
  • Universitätsmedizin Charitè Berlin, Schumann Straße 20/21
    Berlin, State of Berlin 101107, Germany
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 31, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01100333
Responsible party
Sponsor
First posted
Apr 8, 2010
Start date
Apr 2008
Primary completion
Jul 2011
Completion
Jul 2011
Last update
Jul 31, 2014

Study contacts

W. Bilger
study chair · Merck Serono GmbH, Germany, an affiliate of Merck KGaA, Darmstadt, Germany
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2013. You cannot join it, but the record below documents what was studied.

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