Clinical Research Directory

LE + CC vs. LE for Ovulation Induction

This randomized controlled trial (RCT) aims to evaluate whether, in infertile women with WHO II/IV ovulatory disorders, a combination of letrozole (LE) and clomiphene citrate (CC) compared to LE alone, result in higher live birth rates. The study is designed as an open-label, multicenter RCT across six fertility clinics in Vietnam. Participants will be randomized into two groups: (1) LE + CC , (2) LE alone. The primary outcome measure is the live birth rate after one treatment cycle. Based on prior data, the live birth rate for IUI in letrozole cycles is estimated at 12%. To detect a 10% increase in live birth rates with CC, 436 couples are needed (α = 0.05, power = 80%). Additionally, the live birth rate after IUI with LE-induced ovulation is approximately 18.7% (Diamond et al., 2015). To detect a 10% increase with CC, 560 couples are required (α = 0.05, power = 80%). Considering a 5% loss to follow-up and protocol deviations, the study plans to recruit 600 participants (150 per arm).

Clinical Trial of Anovulatory Infertility

This project aims to study the expression of clock genes and related proteins in follicular fluid and granulosa cells, depicting the periodic, amplitude, and phase changes of biological clock genes and related proteins in women of different ages during the reproductive period and in patients with ovulatory disorders. The study compares the periodicity, amplitude, and phase changes of Clock/Bmal1-TTFLs-klotho related proteins and genes in PCOS, DOR patients, and age-matched women with normal ovarian function, aiming to identify the key segments of ovarian clock gene period rhythm disorder under different disease states, and screen the key time points of clock gene oscillation abnormality. Omics analysis of the differences between groups, analysis of the relationship between gene transcription translation, protein expression, metabolites, and the expression of clock genes, and deduction of the dynamic changes and interaction relationships of the biological processes within the ovaries in regulating ovulatory disorders using the method of reinforcing the kidney and regulating the menstrual cycle. This aims to clarify that maintaining the ovarian biological clock period rhythm is an important biological basis for "the kidney dominating reproduction". The regulation mechanism of the treatment of ovulatory disorders using the method of reinforcing the kidney and regulating the menstrual cycle is explained from the perspective of the ovarian biological clock period rhythm.

Three Dimensional Ultrasonographic Detection of Human Ovulation

The research aims to compare diagnosis of ovulation and anovulation in 2D and 3D ultrasonography.