Preimplantation DNA Methylation Test (PIMT) in ART

NCT ID: NCT03642574

Last Updated: 2022-10-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

182 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-09-05

Study Completion Date

2022-06-30

Brief Summary

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The purpose of this clinical trial is to determine the safety and effect of methylation level of DNA methylation in embryos on the outcome of assisted reproductive technology (ART) during blastocyst embryo screening. Subjects with blastocysts on day 5-7 of embryo culture will be biopsied. A Freeze-all strategy and a single frozen blastocyst transfer will be performed till all study-specific embryos have been transferred. Then whole genome bisulfate sequencing will be performed on all cells that obtained from biopsy.

Detailed Description

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The purpose of this clinical trial is to determine the safety and affect of DNA methylation level on ART. Subjects with blastocysts on day 5-7 of embryo culture will be biopsied. A Freeze-all strategy and a single frozen blastocyst transfer will be performed till all study-specific embryos have been transferred. Then whole genome bisulfate sequencing will be performed on all cells that obtained from biopsy. The investigators will perform whole genome DNA methylation sequence for two to seven blastocysts from one couple. The methylation level and genomic copy number variation will be analyzed by using the methylome data. Embryos with aneuploid chromosomes will be rejected for embryo transfer to uterus. The study will examine which kind of methylation level can produce the best clinical outcome for ART. Biopsied cells will perform with preimplnatation DNA methylation test (PIMT). DNA methylation level and chromosome copy number variation will be calculated by using whole genome DNA methylation sequencing data. As we do not kown which kind of methylation state can produce the best outcome in ART practice. This study will try to find a standard of selection embryos according to DNA methylation information. Under current stage, the selection of embryo is according to chromosome copy number. The embryo selection will not consider DNA methylation information for this study.

Conditions

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DNA Methylation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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PIMT methylation

Subjects will have blastocyst biopsy and whole genome DNA methylation sequencing done with 2 or 7 good-quality embryos on Day 5 to 7. Principle of freeze-all and single thawed blastocyst transfer will be applied. Only embryos with euploid chromosome will be transfered to the uterus. The outcome of all euploids transfers within 1 year will be followed up. During study, every subject will have at most one live birth.

Group Type EXPERIMENTAL

CNV

Intervention Type PROCEDURE

Embryo with euploid chromosome will transfer to uterus. The order of transfer is accroding to morphological grade.

Interventions

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CNV

Embryo with euploid chromosome will transfer to uterus. The order of transfer is accroding to morphological grade.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Women who are participating in preimplantation screening with PGS indications,defined as maternal age above 38 years, repeated implantation failure (RIF) usually defined as three or more transfers of morphologically high-quality embryos without the establishment of pregnancy, recurrent miscarriage (RM) in patients with normal karyotypes (usually at least three previous consecutive miscarriages) and severe male factor infertility (usually defined as abnormal semen parameters).
2. Women who obtain 2 or more good-quality blastocysts that defined as morphological score of inner cell mass B or A, trophectoderm C or better, and grade 4 or better on Day five of embryo culture will be randomized.

Exclusion Criteria

1. Women with a uterine cavity abnormality, such as a uterine congenital malformation (uterus unicornate, bicornate, or duplex); untreated uterine septum, adenomyosis, submucous myoma, or endometrial polyp(s); or with history of intrauterine adhesions.
2. Women with untreated hydrosalpinx.
3. Women who use donated oocytes or sperm to achieve pregnancy.
4. Women with contraindication for assisted reproductive technology or for pregnancy, such as poorly controlled Type I or Type II diabetes; undiagnosed liver disease or dysfunction (based on serum liver enzyme testing); renal disease or abnormal serum renal function; significant anemia; history of deep venous thrombosis, pulmonary embolus, or cerebrovascular accident; uncontrolled hypertension, known symptomatic heart disease; history of or suspected cervical carcinoma, endometrial carcinoma, or breast carcinoma; undiagnosed vaginal bleeding.
Minimum Eligible Age

20 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Chinese Academy of Sciences

OTHER_GOV

Sponsor Role collaborator

Chen Zi-Jiang

OTHER

Sponsor Role lead

Responsible Party

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Chen Zi-Jiang

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Shandong University

Jinan, Shandong, China

Site Status

Countries

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China

References

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Brezina PR, Kutteh WH. Clinical applications of preimplantation genetic testing. BMJ. 2015 Feb 19;350:g7611. doi: 10.1136/bmj.g7611.

Reference Type BACKGROUND
PMID: 25697663 (View on PubMed)

Hassold T, Chen N, Funkhouser J, Jooss T, Manuel B, Matsuura J, Matsuyama A, Wilson C, Yamane JA, Jacobs PA. A cytogenetic study of 1000 spontaneous abortions. Ann Hum Genet. 1980 Oct;44(2):151-78. doi: 10.1111/j.1469-1809.1980.tb00955.x.

Reference Type BACKGROUND
PMID: 7316468 (View on PubMed)

Dahdouh EM, Balayla J, Audibert F; Genetics Committee; Wilson RD, Audibert F, Brock JA, Campagnolo C, Carroll J, Chong K, Gagnon A, Johnson JA, MacDonald W, Okun N, Pastuck M, Vallee-Pouliot K. RETIRED: Technical Update: Preimplantation Genetic Diagnosis and Screening. J Obstet Gynaecol Can. 2015 May;37(5):451-63. doi: 10.1016/s1701-2163(15)30261-9.

Reference Type BACKGROUND
PMID: 26168107 (View on PubMed)

Kalousek DK, Pantzar T, Tsai M, Paradice B. Early spontaneous abortion: morphologic and karyotypic findings in 3,912 cases. Birth Defects Orig Artic Ser. 1993;29(1):53-61. No abstract available.

Reference Type BACKGROUND
PMID: 8280893 (View on PubMed)

Smith ZD, Meissner A. DNA methylation: roles in mammalian development. Nat Rev Genet. 2013 Mar;14(3):204-20. doi: 10.1038/nrg3354. Epub 2013 Feb 12.

Reference Type BACKGROUND
PMID: 23400093 (View on PubMed)

Jones PA. Functions of DNA methylation: islands, start sites, gene bodies and beyond. Nat Rev Genet. 2012 May 29;13(7):484-92. doi: 10.1038/nrg3230.

Reference Type BACKGROUND
PMID: 22641018 (View on PubMed)

Jiang L, Zhang J, Wang JJ, Wang L, Zhang L, Li G, Yang X, Ma X, Sun X, Cai J, Zhang J, Huang X, Yu M, Wang X, Liu F, Wu CI, He C, Zhang B, Ci W, Liu J. Sperm, but not oocyte, DNA methylome is inherited by zebrafish early embryos. Cell. 2013 May 9;153(4):773-84. doi: 10.1016/j.cell.2013.04.041.

Reference Type BACKGROUND
PMID: 23663777 (View on PubMed)

Li G, Yu Y, Fan Y, Li C, Xu X, Duan J, Li R, Kang X, Ma X, Chen X, Ke Y, Yan J, Lian Y, Liu P, Zhao Y, Zhao H, Chen Y, Sun X, Liu J, Qiao J, Liu J. Genome wide abnormal DNA methylome of human blastocyst in assisted reproductive technology. J Genet Genomics. 2017 Oct 20;44(10):475-481. doi: 10.1016/j.jgg.2017.09.001. Epub 2017 Sep 6.

Reference Type BACKGROUND
PMID: 29037989 (View on PubMed)

Schieve LA, Meikle SF, Peterson HB, Jeng G, Burnett NM, Wilcox LS. Does assisted hatching pose a risk for monozygotic twinning in pregnancies conceived through in vitro fertilization? Fertil Steril. 2000 Aug;74(2):288-94. doi: 10.1016/s0015-0282(00)00602-6.

Reference Type BACKGROUND
PMID: 10927046 (View on PubMed)

Fiorentino F, Biricik A, Bono S, Spizzichino L, Cotroneo E, Cottone G, Kokocinski F, Michel CE. Development and validation of a next-generation sequencing-based protocol for 24-chromosome aneuploidy screening of embryos. Fertil Steril. 2014 May;101(5):1375-82. doi: 10.1016/j.fertnstert.2014.01.051. Epub 2014 Mar 6.

Reference Type BACKGROUND
PMID: 24613537 (View on PubMed)

Shi Y, Sun Y, Hao C, Zhang H, Wei D, Zhang Y, Zhu Y, Deng X, Qi X, Li H, Ma X, Ren H, Wang Y, Zhang D, Wang B, Liu F, Wu Q, Wang Z, Bai H, Li Y, Zhou Y, Sun M, Liu H, Li J, Zhang L, Chen X, Zhang S, Sun X, Legro RS, Chen ZJ. Transfer of Fresh versus Frozen Embryos in Ovulatory Women. N Engl J Med. 2018 Jan 11;378(2):126-136. doi: 10.1056/NEJMoa1705334.

Reference Type BACKGROUND
PMID: 29320646 (View on PubMed)

Chen ZJ, Shi Y, Sun Y, Zhang B, Liang X, Cao Y, Yang J, Liu J, Wei D, Weng N, Tian L, Hao C, Yang D, Zhou F, Shi J, Xu Y, Li J, Yan J, Qin Y, Zhao H, Zhang H, Legro RS. Fresh versus Frozen Embryos for Infertility in the Polycystic Ovary Syndrome. N Engl J Med. 2016 Aug 11;375(6):523-33. doi: 10.1056/NEJMoa1513873.

Reference Type BACKGROUND
PMID: 27509101 (View on PubMed)

Other Identifiers

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PIMT

Identifier Type: -

Identifier Source: org_study_id

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