Cumulus Cell Mitochondrial Activity as a Non-invasive Marker of Embryo Quality (FLIM)
NCT ID: NCT05332769
Last Updated: 2025-05-07
Study Results
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Basic Information
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ACTIVE_NOT_RECRUITING
200 participants
OBSERVATIONAL
2022-04-25
2026-12-30
Brief Summary
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Detailed Description
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Participants will be consented to and pre-signed following standard regimens of IVFMD, My Duc Hospital and IVFMD PN, My Duc Phu Nhuan Hospital. The standard is for patients with at least 8 follicles ≥ 10 mm on ultrasonography at the induced ovulation date.
Cumulus samples (CCs) will be collected following the protocol on the day of oocyte pick up (OPU), being assigned with the same number as the oocyte from which it was collected, and vitrified with a Cryotech kit until FLIM measurements are performed.
Insemination will be performed by using ICSI, 3 - 4 hours after oocyte retrieval. A sample of CCs will be sliced off the cumulus mass of each oocyte judged to be mature based on the cumulus mass disposition (absence of tight corona layers). The remaining cumulus cells will be stripped from the OCCs using hyaluronidase. Only mature oocytes will be inseminated.
The fertilization check will be performed under an inverted microscope for a period of 16-18 hours after insemination. On day 3, embryo evaluation will be performed at a fixed time point 66±2 hours after fertilization and, for day 5/6 transfers at 116±2 hours or 140±2 hours, respectively, using the Istanbul consensus. Freeze-all strategy for day 5 embryo will be applied and the first frozen embryo transfer cycle is single embryo transfer.
On the other hand, the investigators will stratify embryos into two groups based on the measured FLIM parameters from their associated cumulus cells, corresponding to the "high" 35% and "low" 65% of metabolic scores.
The investigators aim for embryos in the "high" metabolic scoring group to have a 10% higher live birth rate than controls. Assuming a current live birth rate of 32%, this corresponds to a hoped-for 42% live birth rate in the "high" group (and a 25% live birth rate in the "low" group). A total of 450 patients are required to detect an effect of this size (power 0.90, two-sided alpha 5%).
The primary endpoint of the study will be the live birth rate after the first embryo transfer of the started treatment cycle.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Infertile women have IVF/ICSI cycle
All Vietnamese infertile women who have IVF/ICSI cycle with at least 8 follicles ≥ 10 mm on ultrasonography at induced ovulation date agreed to freeze-all day 5-6 embryos at IVFMD and IVFMD PN will be enrolled in the study.
FLIM parameters
Cumulus samples (CCs) will be collected following the protocol on the day of oocyte pick up (OPU). CCs are frozen by the cryo-tech method, then stored in liquid nitrogen at -196oC. Information of CC samples and processed date/time is recorded. After all, samples are collected, they will be transferred to The Needleman Lab, Northwest Lab Building 359,52 Oxford Street Cambridge MA 02138 to measure mitochondria metabolism using FLIM.
Interventions
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FLIM parameters
Cumulus samples (CCs) will be collected following the protocol on the day of oocyte pick up (OPU). CCs are frozen by the cryo-tech method, then stored in liquid nitrogen at -196oC. Information of CC samples and processed date/time is recorded. After all, samples are collected, they will be transferred to The Needleman Lab, Northwest Lab Building 359,52 Oxford Street Cambridge MA 02138 to measure mitochondria metabolism using FLIM.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Ovarian stimulation with any stimulation protocol
* Patients with at least 8 follicles ≥ 10 mm on ultrasonography at induced ovulation date
* Agreed to freeze-all day 5-6 embryos
* Agreed to have a single day 5-6 embryo transfer.
* Agreed to participate in the research (signed the consent form)
Exclusion Criteria
* Cycles using testicular biopsy or epididymal sperm
* Cycles not having an oocyte freeze-all cycle
* Cycles using standard insemination
* Participating in another research
18 Years
FEMALE
No
Sponsors
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The Needleman Lab, Northwest Lab Building 359,52 Oxford Street Cambridge MA 02138.
UNKNOWN
Harvard University Faculty of Medicine
OTHER
Hospital Foch, Suresnes, France.
UNKNOWN
Mỹ Đức Hospital
OTHER
Responsible Party
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Principal Investigators
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Tuong M Ho, MD, MCE
Role: PRINCIPAL_INVESTIGATOR
Mỹ Đức Hospital
Locations
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My Duc Hospital
Ho Chi Minh City, Ho Chi Minh City, Vietnam
Countries
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References
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Fauser BC. Towards the global coverage of a unified registry of IVF outcomes. Reprod Biomed Online. 2019 Feb;38(2):133-137. doi: 10.1016/j.rbmo.2018.12.001. Epub 2018 Dec 14. No abstract available.
Dumollard R, Duchen M, Carroll J. The role of mitochondrial function in the oocyte and embryo. Curr Top Dev Biol. 2007;77:21-49. doi: 10.1016/S0070-2153(06)77002-8.
May-Panloup P, Boucret L, Chao de la Barca JM, Desquiret-Dumas V, Ferre-L'Hotellier V, Moriniere C, Descamps P, Procaccio V, Reynier P. Ovarian ageing: the role of mitochondria in oocytes and follicles. Hum Reprod Update. 2016 Nov;22(6):725-743. doi: 10.1093/humupd/dmw028. Epub 2016 Aug 25.
Babayev E, Seli E. Oocyte mitochondrial function and reproduction. Curr Opin Obstet Gynecol. 2015 Jun;27(3):175-81. doi: 10.1097/GCO.0000000000000164.
Scott R 3rd, Zhang M, Seli E. Metabolism of the oocyte and the preimplantation embryo: implications for assisted reproduction. Curr Opin Obstet Gynecol. 2018 Jun;30(3):163-170. doi: 10.1097/GCO.0000000000000455.
Chakraborty S, Nian FS, Tsai JW, Karmenyan A, Chiou A. Quantification of the Metabolic State in Cell-Model of Parkinson's Disease by Fluorescence Lifetime Imaging Microscopy. Sci Rep. 2016 Jan 13;6:19145. doi: 10.1038/srep19145.
Becker W. Fluorescence lifetime imaging--techniques and applications. J Microsc. 2012 Aug;247(2):119-36. doi: 10.1111/j.1365-2818.2012.03618.x. Epub 2012 May 24.
Sanchez T, Wang T, Pedro MV, Zhang M, Esencan E, Sakkas D, Needleman D, Seli E. Metabolic imaging with the use of fluorescence lifetime imaging microscopy (FLIM) accurately detects mitochondrial dysfunction in mouse oocytes. Fertil Steril. 2018 Dec;110(7):1387-1397. doi: 10.1016/j.fertnstert.2018.07.022. Epub 2018 Nov 14.
Sanchez T, Zhang M, Needleman D, Seli E. Metabolic imaging via fluorescence lifetime imaging microscopy for egg and embryo assessment. Fertil Steril. 2019 Feb;111(2):212-218. doi: 10.1016/j.fertnstert.2018.12.014.
Related Links
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T. H. F. and E. A. (HFEA), "Fertility treatment 2019: trends and figures," 2021.
Other Identifiers
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11/21/DD/BVMD
Identifier Type: -
Identifier Source: org_study_id
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