1. Improved clinical outcomes after non-invasive oocyte selection and Day 3 eSET in ICSI patients
- Author
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Inge Van Vaerenbergh, Lisbet Van Landuyt, Greta Verheyen, Elien Van Hecke, Wim Coucke, Michel De Vos, Peter Platteau, Michel Camus, Tom Adriaenssens, Michaël De Brucker, André Rosenthal, Johan Smitz, Pathology/molecular and cellular medicine, Reproductive immunology and implantation, Follicle Biology, Reproduction and Genetics, Centre for Reproductive Medicine - Gynaecology, Surgical clinical sciences, and Clinical Biology
- Subjects
0301 basic medicine ,Time Factors ,Pregnancy Rate ,LIVE BIRTH-RATES ,Oocyte Retrieval ,Cohort Studies ,0302 clinical medicine ,Endocrinology ,Belgium ,Pregnancy ,lcsh:Reproduction ,Medicine ,Live birth ,Single-Blind Method ,Non-invasive ,Birth Rate ,Reproductive Biology ,030219 obstetrics & reproductive medicine ,ANEUPLOIDIES ,Oocyte selection ,CYCLES ,Obstetrics and Gynecology ,Embryo ,INSIGHTS ,Treatment Outcome ,medicine.anatomical_structure ,PREGNANCY ,Cohort ,Female ,Life Sciences & Biomedicine ,Cohort study ,CELL GENE-EXPRESSION ,Adult ,medicine.medical_specialty ,lcsh:QH471-489 ,Cumulus cells ,Single Embryo Transfer ,EMBRYO-TRANSFER ,lcsh:Gynecology and obstetrics ,Young Adult ,03 medical and health sciences ,Endocrinology & Metabolism ,Humans ,Sperm Injections, Intracytoplasmic ,Ovarian reserve ,Clinical pregnancy ,lcsh:RG1-991 ,Gynecology ,Science & Technology ,Single embryo transfer ,Biochemistry, Genetics and Molecular Biology(all) ,business.industry ,Research ,Models, Theoretical ,Embryo Transfer ,Oocyte ,HUMAN CUMULUS CELLS ,030104 developmental biology ,Reproductive Medicine ,Infertility ,Oocytes ,Gene expression ,business ,IN-VITRO FERTILIZATION ,Developmental Biology - Abstract
Background Non-invasive oocyte quality scoring, based on cumulus gene expression analysis, in combination with morphology scoring, can increase the clinical pregnancy (CPR) and live birth rates (LBR) in Day 3 eSET (elective single embryo transfer) ICSI patients. This was first investigated in a pilot study and is now confirmed in a large patient cohort of 633 patients. It was investigated whether CPR, LBR and time-to-pregnancy could be improved by analyzing the gene expression profile of three predictive genes in the cumulus cells, compared to patients with morphology-based embryo selection only. Methods A large interventional, non-randomized, assessor-blinded cohort study with 633 ICSI patients was conducted in a tertiary fertility center. Non-PCOS patients, 22–39 years old, with good ovarian reserve, were stimulated with HP-hMG using a GnRH antagonist protocol and planned for fresh Day 3 eSET. The cumulus cells from individually denuded oocytes were ranked by a lab-developed cumulus cell test: qRT-PCR for three predictive genes (CAMK1D, EFNB2 and SASH1) and two control genes (UBC, B2M). The embryo selected for transfer was highest ranked from the pool of morphologically transferable Day 3 embryos. Patients in the control (n = 520) and experimental arm (n = 113) were compared for clinical pregnancy and live birth, using a weighted generalized linear model, and time-to-pregnancy using Kaplan-Meier curves. Results The CPR was 61% in the experimental arm (n = 113) vs 29% in the control arm (n = 520, p p p Cumulus cell tested patients n = 65) or ≥ 35 years (n = 48) had a CPR of 62 and 60% respectively (ns). For cumulus cell tested patients with 2, 3–4, or > 4 transferable embryos, the CPR was 66, 52, and 67% (ns) respectively, and thus independent of the number of transferable embryos on Day 3. Conclusions This study provides further evidence of the clinical usefulness of the non-invasive cumulus cell test over time in a larger patient cohort. Trial registration Clinicaltrials.gov, NCT03659786/NCT02962466 (Registered 6Sep2018/11Nov2016, retrospectively registered.
- Published
- 2021