{
    "abstract": "Infertility is a common complication of endometriosis. While in vitro fertilisation-embryo transfer (IVF) successfully treats endometriosis-associated infertility, there is some evidence that pregnancy rates may be diminished in women seeing fertility treatment for endometriosis-associated infertility compared with other etiologies of infertility. The use of gonadotropin releasing hormone (GnRH) agonist prior to IVF has been suggested to improve success, however studies have been small and rarely reported live birth rates. Recent approval of an oral GnRH antagonist for endometriosis provides a novel option for women with endometriosis who are undergoing IVF. There have been no studies on the efficacy of GnRH antagonists for the treatment of endometriosis-related infertility.\nThis study is a multicentre, prospective, randomised, double-blind, placebo-controlled trial to study the efficacy of GnRH antagonist pretreatment for women with endometriosis who are undergoing IVF. A total of 814 patients with endometriosis undergoing fertility treatment will be enrolled and randomised 1:1 into two groups: elagolix 200\u2009mg two times per day or placebo for 8 weeks, prior to undergoing IVF. All participants will then undergo IVF treatment per local protocols. The primary outcome is live birth. Secondary outcomes include oocyte number, fertilisation rate, embryo morphology and implantation rates, as well as rates of known endometriosis-related obstetrical outcomes (pregnancy-induced hypertension, antepartum haemorrhage, caesarean delivery and preterm birth).\nThe PREGnant trial was approved by the Institutional Review Board at Johns Hopkins University. Results will be published in a peer-reviewed journal.\nNCT04173169.",
    "authors": [
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA hugh.taylor@yale.edu.",
            "firstname": "Hugh",
            "initials": "H",
            "lastname": "Taylor"
        },
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.",
            "firstname": "Howard J",
            "initials": "HJ",
            "lastname": "Li"
        },
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.",
            "firstname": "Sandra",
            "initials": "S",
            "lastname": "Carson"
        },
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.",
            "firstname": "Valerie",
            "initials": "V",
            "lastname": "Flores"
        },
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.",
            "firstname": "Lubna",
            "initials": "L",
            "lastname": "Pal"
        },
        {
            "affiliation": "Obstetrics and Gynecology, Northwestern University, Evanston, Chicago, USA.",
            "firstname": "Jared",
            "initials": "J",
            "lastname": "Robbins"
        },
        {
            "affiliation": "Obstetrics and Gynecology, University of Colorado, Denver, Colorado, USA.",
            "firstname": "Nanette F",
            "initials": "NF",
            "lastname": "Santoro"
        },
        {
            "affiliation": "Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.",
            "firstname": "James H",
            "initials": "JH",
            "lastname": "Segars"
        },
        {
            "affiliation": "Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA.",
            "firstname": "David",
            "initials": "D",
            "lastname": "Seifer"
        },
        {
            "affiliation": "Biostatistics, Yale University School of Public Health, New Haven, Connecticut, USA.",
            "firstname": "Hao",
            "initials": "H",
            "lastname": "Huang"
        },
        {
            "affiliation": "Obstetrics and Gynecology, The University of North Carolina, Chapel Hill, North Carolina, USA.",
            "firstname": "Steven",
            "initials": "S",
            "lastname": "Young"
        },
        {
            "affiliation": "Biostatistics, Yale University School of Public Health, New Haven, Connecticut, USA.",
            "firstname": "Heping",
            "initials": "H",
            "lastname": "Zhang"
        }
    ],
    "conclusions": null,
    "copyrights": "\u00a9 Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.",
    "doi": "10.1136/bmjopen-2021-052043\n10.1016/j.ogc.2012.10.002\n10.1016/S0140-6736(21)00389-5\n10.1016/j.fertnstert.2012.05.031\n10.1093/humrep/deh045\n10.1093/humrep/dep376\n10.3109/09513590.2012.706669\n10.1111/j.1471-0528.2012.03466.x\n10.3109/14767058.2014.968843\n10.1016/j.fertnstert.2008.01.096\n10.1093/humrep/dep186\n10.1016/j.fertnstert.2007.01.037\n10.1016/j.fertnstert.2003.09.071\n10.23736/S0026-4806.19.06346-8\n10.1007/s00404-017-4633-0\n10.1016/S0015-0282(02)03112-6\n10.1093/hropen/hoy016\n10.1186/s12958-016-0217-2\n10.1093/humupd/dmv035\n10.1002/uog.13366\n10.1016/j.fertnstert.2016.03.037\n10.1016/j.fertnstert.2014.01.021\n10.1016/j.jmig.2016.12.010\n10.1016/S0015-0282(16)59657-5\n10.1016/j.fertnstert.2014.02.012\n10.1016/S0015-0282(02)03373-3\n10.1159/000163071\n10.1016/j.cct.2012.07.009\n10.1002/14651858.CD013240.pub2\n10.1056/NEJMoa1700089\n10.1002/14651858.CD004635.pub2\n10.1016/j.fertnstert.2011.11.050\n10.1016/j.fertnstert.2017.02.107\n10.1016/j.fertnstert.2011.02.046",
    "journal": "BMJ open",
    "keywords": [
        "Clinical trials",
        "Reproductive medicine",
        "Sex steroids & HRT",
        "Subfertility"
    ],
    "methods": null,
    "publication_date": "2022-06-18",
    "pubmed_id": "35715184\n23182559\n33640070\n2961844\n22704630\n8486196\n14688164\n19897853\n22835092\n22900995\n25262994\n18384780\n19439428\n17349642\n15136075\n14968069\n31755673\n29274003\n12057720\n30895257\n28118836\n26168799\n24639087\n27060727\n24559614\n28089684\n3121395\n24630080\n12372443\n18931504\n22820320\n31747470\n28525302\n16437491\n0\n22196716\n28292618\n21458806",
    "results": null,
    "title": "Pre-IVF treatment with a GnRH antagonist in women with endometriosis (PREGNANT): study protocol for a prospective, double-blind, placebo-controlled trial.",
    "xml": "<Element 'PubmedArticle' at 0x788502f248b0>"
}