AMSTERDAM, Radarseluma.Disway.Id, -- This randomized, controlled trial was conducted at a tertiary IVF center, Ho Chi Minh City, Vietnam. Between January 2023 and June 2023, 120 women were randomized. Eligible women were aged 18–37 years with polycystic ovarian syndrome (PCOS).
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After providing written informed consent, participants were randomized (1:1) to undergo CAPA-IVM with or without FSH-priming. Participants in the FSH-priming group received two days of recombinant FSH (rFSH) injections before oocyte pick-up; no rFSH was given in the non-FSH group. All retrieved cumulus oocyte complexes underwent biphasic in vitro maturation (CAPA-IVM). Matured oocytes underwent fertilization through ICSI procedure, and were cultured to blastocyst stage followed by vitrification. Participants underwent a single blastocyst transfer during a frozen replacement cycle. The primary endpoint was the number of matured oocytes.
The number of matured oocytes after CAPA-IVM did not differ significantly between the non-FSH and FSH groups (13 [9; 18] vs. 14 [7; 18]; absolute difference –1 [95% confidence interval –5, 4]). There were also no significant between-group differences in other oocyte and embryology outcomes, including the number of cumulus-oocyte complexes, number of fertilized oocytes, total number of blastocysts and good blastocysts, and total number of frozen embryos. The live birth rate was 38.3% in the non-FSH group and 31.7% in the FSH group, with no statistically significant difference. The miscarriage rate at <12 weeks’ gestation was 5.0% in both groups. Maternal complications were infrequent and occurred at a similar rate in the non-FSH and FSH groups; there were no preterm deliveries before 32 weeks’ gestation.
The study results were presented by Dr. Tuong M Ho at the 40th Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) on July 9th, 2024 in Amsterdam (The Netherlands) and have been submitted for publication in a leading reproductive medicine journal.
Prof Dr Lan Vuong from The University of Medicine and Pharmacy at Ho Chi Minh City and MyDuc hospital, HCMC, Vietnam, who led the study, said: “This randomized controlled trial with 120 patients proves that CAPA-IVM without rFSH priming is as effective as two days of rFSH priming. With a live birth rate of 38% for single blastocyst transfer CAPA-IVM achieved a similar live birth rate than standard IVF with 8-10 days of rFSH treatment. This is great news and a milestone achievement. The data supports our belief that women with PCOS are suitable for a complete gonadotrophin free, alternative fertility treatment.”