Polycystic ovarian syndrome (PCOS) is the most frequent endocrine disorder affecting women of reproductive age, with a prevalence of 10 to 13%. PCOS is characterized by irregular menstrual cylcles/ovulatory dysfunction, hyperandrogenism, and polycystic ovarian morphology. For infertile patients seeking ovulation induction, letrozole is the drug of first choice. For PCOS patients not seeking pregnancy, there exists a variety of treatments to alleviate symptoms. It has been demonstrated that artemisinin derivatives can promote energy expenditures and insulin sensitivity by activating thermogenic adipocytes, thereby protecting against diet-induced obesity and metabolic disorders in rodents. Recently, we showed in a single arm pilot study including 19 PCOS-patients, that dihydroartemisinin ameliorated hyperandrogenemia reduced antral follicle count and normalized menstrual cycles. Based on these findings, we aim to evaluate the efficacy of dihydroartemisinin in women with PCOS in a placebo controlled randomized clinical trial. The primary outcome is return of regular menstrual cycles within 6 months after start of treatment, with antral follicle count and metabolic profile being secondary outcomes. The results will potentially impact the standard of care for patients diagnosed with PCOS.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
150
Dihydroartemisinin tablets 40mg tid po for 90 days
Identical placebo tid for 90 days
The First Affiliated Hospital of Xiamen University
Xiamen, Fujian, China
RECRUITINGWomen and Children's Hospital, School of Medicine, Xiamen University
Xiamen, Fujian, China
RECRUITINGZhongshan Hospital Fudan University
Shanghai, Shanghai Municipality, China
RECRUITINGThe First Affiliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, China
RECRUITINGThe occurrence of a regular menstrual cycle
The occurrence of a regular menstrual cycle is defined as at least three consecutive spontaneous vaginal bleedings lasting for 2-7 days, with intervals between the start of each cycle of 21 and 35 days (inclusive), during the 26-week period after initiating treatment.
Time frame: From the start of treatment to the end of follow-up at 26 weeks
The presence of a dominant follicle
This will be verified by transvaginal/transanal ultrasound before predicted ovulation, or testing serum progesterone in the predicted mid-luteal phase (A progesterone level\>16nmol/L or 5ng/ml is suggestive of ovulation) in those with at least two consecutive spontaneous bleedings.
Time frame: From the start of treatment to the end of follow-up at 26 weeks
The number of bilateral antral follicles
This will be measured by transvaginal/transanal ultrasound before and immediately after 90-day treatment. Antral follicles are defined as follicles measuring 2-9 mm in diameter in the ovary.
Time frame: Before and immediately after 90-day treatment
Serum AMH
This will be measured before and immediately after 90-day treatment.
Time frame: Before and immediately after 90-day treatment
Serum total testosterone
This will be measured before and immediately after 90-day treatment.
Time frame: Before and immediately after 90-day treatment
Serum sex hormone binding globulin (SHBG)
This will be measured before and immediately after 90-day treatment.
Time frame: Before and immediately after 90-day treatment
free androgen index (FAI)
This will be calculated before and immediately after 90-day treatment. FAI is calculated from measurable values for total testosterone and SHBG, using the following equation: FAI = (Total testosterone in nmol/L / SHBG in nmol/L) × 100.
Time frame: Before and immediately after 90-day treatment
HOMA-IR
HOMA-IR will be calculated before and immediately after 90-day treatment. HOMA-IR is calculated using the following equation: HOMA-IR = fasting plasma glucose in mmol/L×fasting insulin in μU/ml/22.5.
Time frame: Before and immediately after 90-day treatment
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