Autologous Mitochondrial Transfer as a Complementary Technique to ICSI to Improve Oocyte and Embryo Quality in IVF Patients. Pilot Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 59
- 试验地点
- 2
- 主要终点
- Rate of ongoing pregnancy
研究概览
简要总结
The principle objective is to improve embryo quality through autologous micro-injection of mitochondria isolated from Ovarian stem cells into the oocytes themselves, as a complementary ICSI technique in patients with low embryo quality in previous IVF cycles and in those who did not bear children.
This improvement in embryo quality will be determined through on-going pregnancy rate after treatment and/or improvement in embryo quality according to morphological (ASEBIR-"Association for the study of Biology in Reproductive Science), morphokinetic criteria and in Preimplantation Genetic Screening.
Using an adaptive design, retrieved oocytes of approximately 60 patients will be randomized in the first part of the study to two treatment groups; standard ICSI procedure without mitochondrial supplementation and ICSI with autologous mitochondrial supplementation. Following an interim analysis of outcomes, an additional 130 patients may be added, for a total of 190 patients.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 18 Years 至 42 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •The patients must have read, understood and signed the ICF.
- •Age ≤ 42 years.
- •Serum AMH ≥ 4 pM/L.
- •Previous IVF cycle with 5 or more metaphase II oocytes after retrieval
- •Will undergo an IVF cycle with arrays in Preimplantation Genetic Screening.
- •Semen sample with concentrations exceeding 3 million/mL progressive motile sperm.
- •Present with a history of at least one previous cycle of IVF with embryo transfer and no pregnancy due to low embryo quality. Low embryo quality is understood as > 70% of the embryos obtained being included in the worst prognosis category according to any of the following criteria:
- •Low or abnormal Fertilization Rate despite semen count > 3 million/mL.
- •Deficient quality embryos according to morphological criteria established by ASEBIR:
- •i. Embryo D2 and D3: classified as Type C or Type D according to ASEBIR criteria.
- •ii. Embryo D5 or blastocyst: Inner cell mass absent, with few cells and difficult differentiation, Trophectoderm with very few cells. Type C or D of ASEBIR.
- •Embryos of deficient quality according to morphokinetic criteria established (28) for EmbryoScope Time-Lapse if this incubator has been used.
- •i.Category 4: Embryos of 1 or 2 pronuclei (PN) formed from 1 to 2 cells at 27h, from 2 to 6 cells on D2 and 4 or >8 cells or morula on D
- •The embryo can present with asymmetrical and multinucleated blastomeres. Degree of fragmentation < 50%.
- •ii. Category 5: Embryo with any number of cells at 27h, on D2 and D
- •Asymmetrical, multinucleated blastomeres and any degree of fragmentation. Atretic embryos and those with arrested embryo development belong to this category.
- •All cases without embryo transfer due to any chromosomal abnormality detected through PGD or PGS techniques.
- •All cases without transfer due to the presence of embryos that present a blockage of embryo development before D
- •If the morphological quality criteria established under points 2, 3 and 4 give contradictory results, the result obtained through PGD/PGS (point 4) will prevail over the morphokinetic parameters (point 3) and this, in turn, will prevail over the classic morphological criteria (point 2).
排除标准
- •Formal contraindication for ovarian cortex biopsy or follicle puncture.
- •Severe male factor (concentration<3 million/mL of progressive motile sperm).
- •Any characteristic incompatible with carrying out a new IVF cycle at IVI Valencia.
研究组 & 干预措施
Control ICSI without mitochondria
The other half of the metaphase II oocytes retrieved after the controlled ovarian stimulation will be randomized to this group and will not receive autologous mitochondria during the intracytoplasmic sperm injection (ICSI) in the vitro fertilization treatment. Control Group
干预措施: STANDARD ICSI PROCEDURE (Other)
ICSI with mitochondria
Half of the Metaphase II oocytes retrieved after the controlled ovarian stimulation will be randomized to this group and autologous mitochondria from the patient's ovarian cortex will be introduced into the oocyte during the intracytoplasmic sperm injection in the vitro fertilization treatment.
干预措施: Autologous mitochondria with ICSI (Other)
结局指标
主要结局
Rate of ongoing pregnancy
时间窗: 12 weeks
次要结局
未报告次要终点