ISRCTN ISRCTN35766970
DOI https://doi.org/10.1186/ISRCTN35766970
Secondary identifying numbers NTR587
Submission date
08/03/2006
Registration date
08/03/2006
Last edited
27/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Esther Heijnen
Scientific

Department of Reproductive Medicine
University Medical Center Utrecht
Heidelberglaan 100
Utrecht
3584 CX
Netherlands

Email esther.heijnen@organon.com

Study information

Study designMulticentre, randomised, active controlled, parallel group trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleNovel approaches in in-vitro fertilisation (IVF)
Study objectivesStrategies involving shorter and milder ovarian stimulation protocols and single embryo transfer may allow for more in-vitro fertilisation (IVF) cycles in the same period of time, resulting in similar term live birth rate per treatment period despite a minor reduction in birth rate per treatment cycle.
Ethics approval(s)Received from the local medical ethics committee
Health condition(s) or problem(s) studiedInfertility
InterventionPatients were randomly assigned to undergo either:
1. Mild treatment (mild ovarian stimulation with gonadotropin-releasing hormone [GnRH] antagonist co-treatment combined with single embryo transfer), or
2. Standard treatment (stimulation with a GnRH agonist long-protocol and transfer of two embryos)
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Gonadotropin-releasing hormone (GnRH)
Primary outcome measureThe primary outcome parameters chosen for this study were:
1. Pregnancy within one year of treatment after randomisation leading to term (greater than 37 weeks gestation) live birth
2. Total costs per couple and child up to six weeks after expected delivery
3. Patient discomfort/distress during IVF treatment
Secondary outcome measuresNo secondary outcome measures
Overall study start date01/02/2002
Completion date01/03/2005

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target number of participants400
Total final enrolment404
Key inclusion criteria1. Patients with an indication for IVF or IVF/intracytoplasmic sperm injection (ICSI) based on tubal, male or unexplained infertility were recruited
2. Patients less than 38 years with a normal menstrual cycle (cycle length between period 25 - 35 days) and without severe obesity or underweight (body mass index [BMI] 18 - 28 kg/m^2) were eligible for the study
Key exclusion criteriaDoes not comply with the above inclusion criteria.
Date of first enrolment01/02/2002
Date of final enrolment01/03/2005

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Department of Reproductive Medicine
Utrecht
3584 CX
Netherlands

Sponsor information

University Medical Centre Utrecht (UMCU) (The Netherlands)
Hospital/treatment centre

Department of Reproductive Medicine
Heidelberglaan 100
Utrecht
3584 CX
Netherlands

Website http://www.umcutrecht.nl/zorg/
ROR logo "ROR" https://ror.org/04pp8hn57

Funders

Funder type

Research organisation

The Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 03/03/2007 Yes No
Other publications Psychological impact 01/09/2007 Yes No
Results article Patient discomfort, risks and costs 05/04/2008 27/10/2022 Yes No

Editorial Notes

27/10/2022: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.