Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART): a study protocol for a randomised controlled trial

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Standard

Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART) : a study protocol for a randomised controlled trial. / Stormlund, Sacha; Løssl, Kristine; Zedeler, Anne; Bogstad, Jeanette; Prætorius, Lisbeth; Nielsen, Henriette Svarre; Bungum, Mona; Skouby, Sven O; Mikkelsen, Anne Lis; Andersen, Anders Nyboe; Bergh, Christina; Humaidan, Peter; Pinborg, Anja.

I: B M J Open, Bind 7, e016106, 31.07.2017.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Stormlund, S, Løssl, K, Zedeler, A, Bogstad, J, Prætorius, L, Nielsen, HS, Bungum, M, Skouby, SO, Mikkelsen, AL, Andersen, AN, Bergh, C, Humaidan, P & Pinborg, A 2017, 'Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART): a study protocol for a randomised controlled trial', B M J Open, bind 7, e016106. https://doi.org/10.1136/bmjopen-2017-016106

APA

Stormlund, S., Løssl, K., Zedeler, A., Bogstad, J., Prætorius, L., Nielsen, H. S., ... Pinborg, A. (2017). Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART): a study protocol for a randomised controlled trial. B M J Open, 7, [e016106]. https://doi.org/10.1136/bmjopen-2017-016106

Vancouver

Stormlund S, Løssl K, Zedeler A, Bogstad J, Prætorius L, Nielsen HS o.a. Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART): a study protocol for a randomised controlled trial. B M J Open. 2017 jul 31;7. e016106. https://doi.org/10.1136/bmjopen-2017-016106

Author

Stormlund, Sacha ; Løssl, Kristine ; Zedeler, Anne ; Bogstad, Jeanette ; Prætorius, Lisbeth ; Nielsen, Henriette Svarre ; Bungum, Mona ; Skouby, Sven O ; Mikkelsen, Anne Lis ; Andersen, Anders Nyboe ; Bergh, Christina ; Humaidan, Peter ; Pinborg, Anja. / Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART) : a study protocol for a randomised controlled trial. I: B M J Open. 2017 ; Bind 7.

Bibtex

@article{5ec8b238a49f43129e41559108080964,
title = "Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART): a study protocol for a randomised controlled trial",
abstract = "INTRODUCTION: Pregnancy rates after frozen embryo transfer (FET) have improved in recent years and are now approaching or even exceeding those obtained after fresh embryo transfer. This is partly due to improved laboratory techniques, but may also be caused by a more physiological hormonal and endometrial environment in FET cycles. Furthermore, the risk of ovarian hyperstimulation syndrome is practically eliminated in segmentation cycles followed by FET and the use of natural cycles in FETs may be beneficial for the postimplantational conditions of fetal development. However, a freeze-all strategy is not yet implemented as standard care due to limitations of large randomised trials showing a benefit of such a strategy. Thus, there is a need to test the concept against standard care in a randomised controlled design. This study aims to compare ongoing pregnancy and live birth rates between a freeze-all strategy with gonadotropin-releasing hormone (GnRH) agonist triggering versus human chorionic gonadotropin (hCG) trigger and fresh embryo transfer in a multicentre randomised controlled trial.METHODS AND ANALYSIS: Multicentre randomised, controlled, double-blinded trial of women undergoing assisted reproductive technology treatment including 424 normo-ovulatory women aged 18-39 years from Denmark and Sweden. Participants will be randomised (1:1) to either (1) GnRH agonist trigger and single vitrified-warmed blastocyst transfer in a subsequent hCG triggered natural menstrual cycle or (2) hCG trigger and single blastocyst transfer in the fresh (stimulated) cycle. The primary endpoint is to compare ongoing pregnancy rates per randomised patient in the two treatment groups after the first single blastocyst transfer.ETHICS AND DISSEMINATION: The study will be performed in accordance with the ethical principles in the Helsinki Declaration. The study is approved by the Scientific Ethical Committees in Denmark and Sweden. The results of the study will be publically disseminated.TRIAL REGISTRATION NUMBER: NCT02746562; Pre-results.",
keywords = "Journal Article",
author = "Sacha Stormlund and Kristine L{\o}ssl and Anne Zedeler and Jeanette Bogstad and Lisbeth Pr{\ae}torius and Nielsen, {Henriette Svarre} and Mona Bungum and Skouby, {Sven O} and Mikkelsen, {Anne Lis} and Andersen, {Anders Nyboe} and Christina Bergh and Peter Humaidan and Anja Pinborg",
note = "{\circledC} Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.",
year = "2017",
month = "7",
day = "31",
doi = "10.1136/bmjopen-2017-016106",
language = "English",
volume = "7",
journal = "B M J Open",
issn = "2044-6055",
publisher = "BMJ Publishing Group",

}

RIS

TY - JOUR

T1 - Comparison of a 'freeze-all' strategy including GnRH agonist trigger versus a 'fresh transfer' strategy including hCG trigger in assisted reproductive technology (ART)

T2 - a study protocol for a randomised controlled trial

AU - Stormlund, Sacha

AU - Løssl, Kristine

AU - Zedeler, Anne

AU - Bogstad, Jeanette

AU - Prætorius, Lisbeth

AU - Nielsen, Henriette Svarre

AU - Bungum, Mona

AU - Skouby, Sven O

AU - Mikkelsen, Anne Lis

AU - Andersen, Anders Nyboe

AU - Bergh, Christina

AU - Humaidan, Peter

AU - Pinborg, Anja

N1 - © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

PY - 2017/7/31

Y1 - 2017/7/31

N2 - INTRODUCTION: Pregnancy rates after frozen embryo transfer (FET) have improved in recent years and are now approaching or even exceeding those obtained after fresh embryo transfer. This is partly due to improved laboratory techniques, but may also be caused by a more physiological hormonal and endometrial environment in FET cycles. Furthermore, the risk of ovarian hyperstimulation syndrome is practically eliminated in segmentation cycles followed by FET and the use of natural cycles in FETs may be beneficial for the postimplantational conditions of fetal development. However, a freeze-all strategy is not yet implemented as standard care due to limitations of large randomised trials showing a benefit of such a strategy. Thus, there is a need to test the concept against standard care in a randomised controlled design. This study aims to compare ongoing pregnancy and live birth rates between a freeze-all strategy with gonadotropin-releasing hormone (GnRH) agonist triggering versus human chorionic gonadotropin (hCG) trigger and fresh embryo transfer in a multicentre randomised controlled trial.METHODS AND ANALYSIS: Multicentre randomised, controlled, double-blinded trial of women undergoing assisted reproductive technology treatment including 424 normo-ovulatory women aged 18-39 years from Denmark and Sweden. Participants will be randomised (1:1) to either (1) GnRH agonist trigger and single vitrified-warmed blastocyst transfer in a subsequent hCG triggered natural menstrual cycle or (2) hCG trigger and single blastocyst transfer in the fresh (stimulated) cycle. The primary endpoint is to compare ongoing pregnancy rates per randomised patient in the two treatment groups after the first single blastocyst transfer.ETHICS AND DISSEMINATION: The study will be performed in accordance with the ethical principles in the Helsinki Declaration. The study is approved by the Scientific Ethical Committees in Denmark and Sweden. The results of the study will be publically disseminated.TRIAL REGISTRATION NUMBER: NCT02746562; Pre-results.

AB - INTRODUCTION: Pregnancy rates after frozen embryo transfer (FET) have improved in recent years and are now approaching or even exceeding those obtained after fresh embryo transfer. This is partly due to improved laboratory techniques, but may also be caused by a more physiological hormonal and endometrial environment in FET cycles. Furthermore, the risk of ovarian hyperstimulation syndrome is practically eliminated in segmentation cycles followed by FET and the use of natural cycles in FETs may be beneficial for the postimplantational conditions of fetal development. However, a freeze-all strategy is not yet implemented as standard care due to limitations of large randomised trials showing a benefit of such a strategy. Thus, there is a need to test the concept against standard care in a randomised controlled design. This study aims to compare ongoing pregnancy and live birth rates between a freeze-all strategy with gonadotropin-releasing hormone (GnRH) agonist triggering versus human chorionic gonadotropin (hCG) trigger and fresh embryo transfer in a multicentre randomised controlled trial.METHODS AND ANALYSIS: Multicentre randomised, controlled, double-blinded trial of women undergoing assisted reproductive technology treatment including 424 normo-ovulatory women aged 18-39 years from Denmark and Sweden. Participants will be randomised (1:1) to either (1) GnRH agonist trigger and single vitrified-warmed blastocyst transfer in a subsequent hCG triggered natural menstrual cycle or (2) hCG trigger and single blastocyst transfer in the fresh (stimulated) cycle. The primary endpoint is to compare ongoing pregnancy rates per randomised patient in the two treatment groups after the first single blastocyst transfer.ETHICS AND DISSEMINATION: The study will be performed in accordance with the ethical principles in the Helsinki Declaration. The study is approved by the Scientific Ethical Committees in Denmark and Sweden. The results of the study will be publically disseminated.TRIAL REGISTRATION NUMBER: NCT02746562; Pre-results.

KW - Journal Article

U2 - 10.1136/bmjopen-2017-016106

DO - 10.1136/bmjopen-2017-016106

M3 - Journal article

C2 - 28760794

VL - 7

JO - B M J Open

JF - B M J Open

SN - 2044-6055

M1 - e016106

ER -

ID: 185182439