IVM With Low Cost Priming, Enhanced Oocyte Recovery, and Delayed Transfer
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: in vitro maturation of oocytes.
- Кому может быть актуально
- Состояния в реестре: Polycystic Ovary Syndrome. Базовые параметры: 18 лет — 38 лет · Женщины.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- США
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
Не всё понятно в терминах? Прочитайте наш гид для пациентов →
Официальное название
A Prospective Series of IVF Cases Utilizing in Vitro Maturation (IVM) With Low Cost Priming, Enhanced Oocyte Recovery, and Delayed Embryo Transfer Using a Subsequent Frozen Embryo Transfer Cycle
Обзор
A protocol was developed to improve pregnancy results after IVM compared to results from studies in the literature. Differences from most published protocols include the use of the Steiner-Tan needle to optimize oocyte environment during oocyte retrieval, use of oral medications and very low doses of FSH, and delayed embryo transfer during subsequent warmed cryo-preserved embryo transfer. Eligible patient have a PCO pattern in their ovaries during transvaginal ultrasound.
Подробное описание
All participants are candidates for IVF having PCOS or having PCO patterns in their ovaries who wish to undertake IVM for the potential advantages that it holds. All cycles are proceeded by oral contraceptive use for cycle scheduling purposes. Priming is done with oral letrozole with the addition of 25-75 IU daily starting after 2 days of letrozole. HCG is given when several follicle have diameters 8 mm or greater and no follicles have diameters greater than 13 mm. Oocyte retrieval is done approximately 38 hours later. A Steiner-Tan needle is used for oocyte retrieval in a manner that minimizes the amount of time that an oocyte is out of the ovary and not in a controlled laboratory environment. Oocytes are assessed for maturity for up to 48 hours post retrieval. If mature, oocytes are injected with sperm using ICSI. Embryos are grown to blastocysts and all blastocyst are vitrified. Warmed cryo-preserved blastocyst are transferred using routine IVF protocols during a subsequent cycle.
Вмешательства
- Комбинированный продукт in vitro maturation of oocytes
Immature oocytes (rather than mature oocytes) are harvested as in IVF. These oocytes are allowed to mature in the laboratory before fertilization
Первичные конечные точки
- Percentage of treated patients having a clinical pregnancy [Срок оценки: 12 weeks post transfer]
- Percentage of treated patients having an ongoing pregnancy [Срок оценки: 10 months post transfer]
Вторичные конечные точки (5)
- Percentage of retrieved oocytes which matured per patient [Срок оценки: 2 days post retrieval]
- Percentage of retrieved oocytes which fertilized per patient [Срок оценки: 4 days post retrieval]
- Percentage of fertilized oocytes which divided [Срок оценки: 6 days post retrieval]
- Percentage of fertilized oocytes which became blastocysts per patient [Срок оценки: 8 days post retrieval]
- Percentage of patients who have a biochemical pregnancy after therir first transfer [Срок оценки: 28 days post transfer]
Критерии участия
Критерии включения
- PCO pattern with > 25 antral follicles
- AMH > 3.5
Критерии исключения
- BMI > 35
- body morphology making transvaginal retrieval difficult or impossible
- complicating medical condition making pregnancy or IVF relatively contra-indicated
Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.
Здоровые добровольцы: Нет
Дизайн исследования
- Распределение
- Не применимо
- Модель
- Одна группа
- Маскирование
- Открытое
- Основная цель
- Лечение
Центры проведения
США · 1 центр
- Brown Fertility — Jacksonville
Публикации
- Rose BI. The potential of letrozole use for priming in vitro maturation cycles. Facts Views Vis Obgyn. 2014;6(3):150-5. PMID 25374658
- Rose BI: The case for more active management of endometrial development in IVM: Decreasing the miscarriage rate and increasing the clinical pregnancy rate. Journal of Reproductive Endocrinology and Infertility, 14: 1-6, 2016
- Rose BI, Laky D. A comparison of the Cook single lumen immature ovum IVM needle to the Steiner-Tan pseudo double lumen flushing needle for oocyte retrieval for IVM. J Assist Reprod Genet. 2013 Jun;30(6):855-60. doi: 10.1007/s10815-013-0006-1. Epub 2013 May 5. PMID 23644950
Идентификаторы
NCT: NCT04149496 · 18-49