A randomised controlled trial comparing the Gonadotrophin Releasing Hormone agonist long regimen versus the Gonadotrophin Releasing Hormone agonist short regimen versus the Gonadotrophin Releasing Hormone antagonist regimen in poor responders undergoing in vitro fertilisation treatment

ISRCTN ISRCTN27044628
DOI https://doi.org/10.1186/ISRCTN27044628
EudraCT/CTIS number 2006-004460-31
Secondary identifying numbers EudraCT No 2006-004460-31
Submission date
01/09/2006
Registration date
27/10/2006
Last edited
05/11/2013
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

Mr Yakoub Khalaf
Scientific

Assisted Conception Unit
4th Floor Thomas Guy House
Guy's Hospital
London
SE1 9RT
United Kingdom

Phone +44 (0)20 7188 0501
Email yakoub.khalaf@kcl.ac.uk

Study information

Study designProspective, concealed, single-blind, three-arm randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific title
Study acronymPRINT (Poor Responders INtervention Trial)
Study objectivesDifferent interventions have been proposed to improve response to ovarian stimulation in poor responders. These include various interventions for downregulation, ovarian stimulation and adjuvant therapies. Following review and analysis of existing evidence for downregulation regimens we were not able to ascertain which the best down regulation regimen is for poor responders in In Vitro Fertilisation (IVF) treatment. We, therefore, propose a randomised trial to answer this question.

There is however lack of evidence to show that any one intervention improves outcome significantly. The purpose of this study is to compare the three most commonly used regimens in IVF treatment and find out whether any one regimen is significantly better.
Ethics approval(s)Ethics approval pending as of 27/10/2006.
Health condition(s) or problem(s) studiedPoor ovarian response in In Vitro Fertilisation (IVF)
InterventionEach intervention group will be receiving one of the following treatments:
1. The Gonadotrophin Releasing Hormone (GnRH) agonist long regimen
2. The GnRH agonist short regimen
3. The GnRH antagonist regimen
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Gonadotrophin Releasing Hormone (GnRH) agonist long regimen, GnRH agonist short regimen and GnRH antagonist regimen.
Primary outcome measureNumber of oocytes retrieved at egg collection
Secondary outcome measures1. Total FSH dose used for ovarian stimulation
2. Number of mature oocytes retrieved
3. Number of embryos available for transfer
4. Clinical pregnancies (ultrasound evidence of foetal heart at eight weeks gestation)
Overall study start date01/11/2006
Completion date01/05/2008

Eligibility

Participant type(s)Patient
Age groupAdult
SexFemale
Target number of participants34 participants in each arm giving a total of 102 participants
Key inclusion criteriaAny woman undergoing an IVF treatment cycle with or without Intra Cytoplasmic Sperm Injection (ICSI) who is considered to be a "poor responder" is eligible to participate in the trial.

For this study a "poor responder" is defined as a woman who had a previous IVF treatment cycle in which she was stimulated with a daily dose of Follicle Stimulating Hormone (FSH) of 300 IU or more for at least nine days and:
1. Produced an inadequate number of mature follicles (three or less follicles measuring more than or equal to 17 mm, or
2. Had three or less oocytes retrieved at oocyte retrieval
Key exclusion criteria1. Women aged more than 40 years
2. Women with a single ovary
Date of first enrolment01/11/2006
Date of final enrolment01/05/2008

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Assisted Conception Unit
London
SE1 9RT
United Kingdom

Sponsor information

Guy's and St Thomas' NHS Foundation Trust and King' s College London (UK)
Hospital/treatment centre

Guy's Hospital
St Thomas' Street
London
SE1 9RT
England
United Kingdom

Website http://www.guysandstthomas.nhs.uk/home.aspx
ROR logo "ROR" https://ror.org/00j161312

Funders

Funder type

Hospital/treatment centre

Assisted Conception Unit, Guy's and St Thomas' NHS Foundation Trust (UK)

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 plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 28/12/2007 Yes No