European journal of obstetrics, gynecology, and reproductive biology · 2023
Who may benefit from an increased gonadotropin dosing in predicted poor responders undergoing IVF/ICSI? A secondary analysis assessing treatment selection markers of a randomized trial.
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Liu Xitong, Li Wentao, Mol Ben W, Wen Wen, Wang Tao, Tian Li, Li Na, Sun Ting, Wang Ting, Zhou Hanying, Zhang Na, Qu Pengfei, Liu Siyu, Shi Juanzi
Аннотация
OBJECTIVE: To evaluate whether we can identify patient characteristics that serve as treatment selection markers to distinguish which women with expected poor response benefit from increased dosing of follicle-stimulating hormone (FSH) in terms of improving the cumulative live birth rate compared to standard FSH dosing and which women.
STUDY DESIGN: We performed a secondary analysis of an RCT performed between March 2019 and October 2021 comparing cumulative live birth after increased dosing (N = 328) who received 225 or 300 IU/day according to their antral follicle count (AFC) and standard dosing (N = 333) who received 150 IU/day of gonadotropin.
RESULTS: The MFPI analysis showed the benefit of the increased dosing of FSH on cumulative live birth starts to emerge when women were older than 30 years (women > 30 years: 46.5 % vs. 34.2 %; adjusted relative risk (aRR) 1.32, 95 % confidence interval (95 %CI) 1.05-1.66; women ≤ 30 years: 54.7 % vs. 58.6 %; aRR 0.91, 95 % CI 0.72-1.14; p for interaction 0.019). Only those who had AFC between 1 and 3 benefited from the increased FSH dose (AFC 1-3: 38.5 % vs. 6.5 %; aRR 5.88, 95 % CI 1.50-23.15; AFC 4-9: 50.3 % vs. 46.0 %; aRR 1.08, 95 % CI 0.92-1.27; p for interaction 0.023). Expected poor responders defined by the Bologna criteria and POSEIDON criteria did not significantly benefit from the increased dosing of FSH.
CONCLUSIONS: Women who are aged >30 years or have AFC 1-3 are likely to benefit from increased dosing of FSH by having a higher cumulative live birth rate.
STUDY DESIGN: We performed a secondary analysis of an RCT performed between March 2019 and October 2021 comparing cumulative live birth after increased dosing (N = 328) who received 225 or 300 IU/day according to their antral follicle count (AFC) and standard dosing (N = 333) who received 150 IU/day of gonadotropin.
RESULTS: The MFPI analysis showed the benefit of the increased dosing of FSH on cumulative live birth starts to emerge when women were older than 30 years (women > 30 years: 46.5 % vs. 34.2 %; adjusted relative risk (aRR) 1.32, 95 % confidence interval (95 %CI) 1.05-1.66; women ≤ 30 years: 54.7 % vs. 58.6 %; aRR 0.91, 95 % CI 0.72-1.14; p for interaction 0.019). Only those who had AFC between 1 and 3 benefited from the increased FSH dose (AFC 1-3: 38.5 % vs. 6.5 %; aRR 5.88, 95 % CI 1.50-23.15; AFC 4-9: 50.3 % vs. 46.0 %; aRR 1.08, 95 % CI 0.92-1.27; p for interaction 0.023). Expected poor responders defined by the Bologna criteria and POSEIDON criteria did not significantly benefit from the increased dosing of FSH.
CONCLUSIONS: Women who are aged >30 years or have AFC 1-3 are likely to benefit from increased dosing of FSH by having a higher cumulative live birth rate.