{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T07:27:44Z","timestamp":1792740464694,"version":"4.5.0"},"reference-count":27,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","ejog.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"published-print":{"date-parts":[[2026,6]]},"DOI":"10.1016\/j.ejogrb.2026.115101","type":"journal-article","created":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T16:46:00Z","timestamp":1775493960000},"page":"115101","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"special_numbering":"C","title":["Outcomes of GnRH agonist trigger in dydrogesterone-based PPOS versus GnRH antagonist cycles: a retrospective parallel cohort in freeze-all IVF treatment"],"prefix":"10.1016","volume":"322","author":[{"given":"L.","family":"Melado","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Ata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E.","family":"Kalafat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"del Gallego","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Bayram","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I.","family":"ElKhatib","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Lawrenz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Fatemi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.ejogrb.2026.115101_b0005","doi-asserted-by":"crossref","unstructured":"Al-Inany H, Aboulghar M. Gonadotrophin-releasing hormone antagonists for assisted conception. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2001 [cited 2025 Mar 15]. p. CD001750. Available from: https:\/\/doi.wiley.com\/10.1002\/14651858.CD001750.","DOI":"10.1002\/14651858.CD001750"},{"key":"10.1016\/j.ejogrb.2026.115101_b0010","doi-asserted-by":"crossref","DOI":"10.5935\/1518-0557.20240045","article-title":"Vaginal micronized progesterone on preventing luteinizing hormone untimely surge in ART cycles: A prospective proof-of-concept study","author":"Souza","year":"2024","journal-title":"JBRA Assist Reprod"},{"issue":"1","key":"10.1016\/j.ejogrb.2026.115101_b0015","first-page":"48","volume":"27","author":"Ata","year":"2021","journal-title":"Progestins for pituitary suppression during ovarian stimulation for ART: a comprehensive and systematic review including meta-analyses. Hum Reprod Update"},{"issue":"2","key":"10.1016\/j.ejogrb.2026.115101_b0020","doi-asserted-by":"crossref","first-page":"103639","DOI":"10.1016\/j.rbmo.2023.103639","article-title":"Progestin-primed ovarian stimulation: for whom, when and how?","volume":"48","author":"Ata","year":"2024","journal-title":"Reprod Biomed Online"},{"issue":"5","key":"10.1016\/j.ejogrb.2026.115101_b0025","doi-asserted-by":"crossref","first-page":"923","DOI":"10.1016\/j.fertnstert.2019.12.024","article-title":"Progesterone is a physiological trigger of ovulatory gonadotropins","volume":"113","author":"Dozortsev","year":"2020","journal-title":"Fertil Steril"},{"issue":"14","key":"10.1016\/j.ejogrb.2026.115101_b0030","doi-asserted-by":"crossref","first-page":"1171974","DOI":"10.3389\/fendo.2023.1171974","article-title":"Editorial: GnRH agonist triggering of final oocyte maturation: Improving safety without compromising success","volume":"16","author":"Awwad","year":"2023","journal-title":"Front Endocrinol"},{"issue":"13","key":"10.1016\/j.ejogrb.2026.115101_b0035","article-title":"Agonist triggering in oocyte donation programs\u2014Mini review","volume":"26","author":"Najdecki","year":"2022","journal-title":"Front Endocrinol"},{"issue":"1","key":"10.1016\/j.ejogrb.2026.115101_b0040","doi-asserted-by":"crossref","first-page":"22732","DOI":"10.1038\/s41598-021-02227-w","article-title":"Progestin primed ovarian stimulation using corifollitropin alfa in PCOS women effectively prevents LH surge and reduces injection burden compared to GnRH antagonist protocol","volume":"11","author":"Huang","year":"2021","journal-title":"Sci Rep"},{"issue":"1","key":"10.1016\/j.ejogrb.2026.115101_b0045","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1093\/humupd\/dmt037","article-title":"Individualization of controlled ovarian stimulation in IVF using ovarian reserve markers: from theory to practice","volume":"20","author":"La Marca","year":"2014","journal-title":"Hum Reprod Update"},{"issue":"12","key":"10.1016\/j.ejogrb.2026.115101_b0050","article-title":"Step-Down of FSH- Dosage During Ovarian Stimulation \u2013 Basic Lessons to Be Learnt From a Randomized Controlled Trial","volume":"13","author":"Lawrenz","year":"2021","journal-title":"Front Endocrinol"},{"issue":"2","key":"10.1016\/j.ejogrb.2026.115101_b0055","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1016\/j.fertnstert.2023.11.013","article-title":"Prevention of moderate and severe ovarian hyperstimulation syndrome: a guideline","volume":"121","year":"2024","journal-title":"Fertil Steril"},{"key":"10.1016\/j.ejogrb.2026.115101_b0060","doi-asserted-by":"crossref","unstructured":"De Munck N, El Khatib I, Abdala A, El-Damen A, Bayram A, Arnanz A, et al. Intracytoplasmic sperm injection is not superior to conventional IVF in couples with non-male factor infertility and preimplantation genetic testing for aneuploidies (PGT-A). Hum Reprod Oxf Engl. 2020;35(2):317\u201327. https:\/\/doi.org\/10.1093\/humrep\/deaa002. PubMed PMID: 32086522.","DOI":"10.1093\/humrep\/deaa002"},{"key":"10.1016\/j.ejogrb.2026.115101_b0065","doi-asserted-by":"crossref","unstructured":"Gardner DK, Schoolcraft WB. Culture and transfer of human blastocysts. Curr Opin Obstet Gynecol. 1999;11(3):307\u201311. https:\/\/doi.org\/10.1097\/00001703-199906000-00013. PubMed PMID: 10369209.","DOI":"10.1097\/00001703-199906000-00013"},{"issue":"9","key":"10.1016\/j.ejogrb.2026.115101_b0070","doi-asserted-by":"crossref","first-page":"1842","DOI":"10.1093\/humrep\/deu139","article-title":"The Bologna criteria for the definition of poor ovarian responders: is there a need for revision?","volume":"29","author":"Ferraretti","year":"2014","journal-title":"Hum Reprod"},{"issue":"3","key":"10.1016\/j.ejogrb.2026.115101_b0075","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1016\/S1472-6483(10)60837-1","article-title":"Highly efficient vitrification method for cryopreservation of human oocytes","volume":"11","author":"Kuwayama","year":"2005","journal-title":"Reprod Biomed Online"},{"issue":"3","key":"10.1016\/j.ejogrb.2026.115101_bib101","doi-asserted-by":"crossref","first-page":"136","DOI":"10.1097\/GCO.0000000000000362","article-title":"A universal freeze all strategy. why it is not warranted","volume":"29","author":"Ata","year":"2017","journal-title":"Curr Opin Obstet Gynecol"},{"issue":"5","key":"10.1016\/j.ejogrb.2026.115101_bib102","doi-asserted-by":"crossref","first-page":"104491","DOI":"10.1016\/j.rbmo.2024.104491","article-title":"Freeze-all indications in women with subfertility undergoing IVF: a cohort study","volume":"50","author":"Moens","year":"2025","journal-title":"Reprod Biomed Online"},{"issue":"2","key":"10.1016\/j.ejogrb.2026.115101_bib103","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1007\/s00404-023-07071-z","article-title":"Comparison of fixed and flexible progestin-primed ovarian stimulation protocols to prevent premature luteinization in patients with diminished ovarian reserve","volume":"308","author":"Do\u011fan Durda\u011f","year":"2023","journal-title":"Arch Gynecol Obstet"},{"issue":"4","key":"10.1016\/j.ejogrb.2026.115101_b0080","doi-asserted-by":"crossref","first-page":"677","DOI":"10.1016\/j.fertnstert.2019.06.009","article-title":"Comparison of a novel flexible progestin primed ovarian stimulation protocol and the flexible gonadotropin-releasing hormone antagonist protocol for assisted reproductive technology","volume":"112","author":"Yildiz","year":"2019","journal-title":"Fertil Steril"},{"issue":"13","key":"10.1016\/j.ejogrb.2026.115101_b0085","article-title":"Outcomes of a GnRH Agonist Trigger Following a GnRH Antagonist or Flexible Progestin-Primed Ovarian Stimulation Cycle","volume":"19","author":"Kalafat","year":"2022","journal-title":"Front Endocrinol"},{"issue":"10","key":"10.1016\/j.ejogrb.2026.115101_b0090","doi-asserted-by":"crossref","first-page":"2027","DOI":"10.1093\/humrep\/dez132","article-title":"Predicting suboptimal oocyte yield following GnRH agonist trigger by measuring serum LH at the start of ovarian stimulation","volume":"34","author":"Popovic-Todorovic","year":"2019","journal-title":"Hum Reprod"},{"key":"10.1016\/j.ejogrb.2026.115101_b0095","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1016\/j.ejogrb.2024.01.022","article-title":"No association between LH levels and ovarian response in oocyte donors triggered with gonadotropin-releasing hormone agonist: A prospective study","volume":"294","author":"Blazquez","year":"2024","journal-title":"Eur J Obstet Gynecol Reprod Biol"},{"issue":"14","key":"10.1016\/j.ejogrb.2026.115101_b0100","doi-asserted-by":"crossref","first-page":"1216584","DOI":"10.3389\/fendo.2023.1216584","article-title":"The value of LH maximum level in predicting optimal oocyte yield following GnRH agonist trigger","volume":"7","author":"Lee","year":"2023","journal-title":"Front Endocrinol"},{"key":"10.1016\/j.ejogrb.2026.115101_bib104","article-title":"Adverse effects of progestin-primed ovarian stimulation: combination of clinical study and single cell analysis","volume":"104833","author":"Handa","year":"2025","journal-title":"Reprod Biomed Online"},{"issue":"10","key":"10.1016\/j.ejogrb.2026.115101_bib105","doi-asserted-by":"crossref","first-page":"2331","DOI":"10.1093\/humrep\/deae189","article-title":"Exposure of antral follicles to medroxyprogesterone acetate during stimulation does not cause molecular perturbations in gonadotropin-responsiveness and steroidogenic function of granulosa cells in progestin-primed cycles","volume":"39","author":"Oktem","year":"2024","journal-title":"Hum Reprod"},{"issue":"9","key":"10.1016\/j.ejogrb.2026.115101_bib107","doi-asserted-by":"crossref","first-page":"686","DOI":"10.3389\/fendo.2018.00686","article-title":"Anti-m\u00fcllerian Hormone During Natural Cycle Presents Significant Intra and Intercycle Variations When Measured With Fully Automated Assay","volume":"27","author":"Melado","year":"2018","journal-title":"Front Endocrinol"},{"issue":"Supplement_1","key":"10.1016\/j.ejogrb.2026.115101_bib106","doi-asserted-by":"crossref","DOI":"10.1093\/humrep\/dead093.081","article-title":"O-067 Does the measurement of different AMH isoforms in poor responder patients improve the prediction of ovarian response?","volume":"38","author":"Melado Vidales","year":"2023","journal-title":"Hum Reprod"}],"container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211526001685?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211526001685?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T14:32:57Z","timestamp":1786372377000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0301211526001685"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6]]},"references-count":27,"alternative-id":["S0301211526001685"],"URL":"https:\/\/doi.org\/10.1016\/j.ejogrb.2026.115101","relation":{},"ISSN":["0301-2115"],"issn-type":[{"value":"0301-2115","type":"print"}],"subject":[],"published":{"date-parts":[[2026,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Outcomes of GnRH agonist trigger in dydrogesterone-based PPOS versus GnRH antagonist cycles: a retrospective parallel cohort in freeze-all IVF treatment","name":"articletitle","label":"Article Title"},{"value":"European Journal of Obstetrics & Gynecology and Reproductive Biology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejogrb.2026.115101","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}],"article-number":"115101"}}