The Effects of Coenzyme Q10 Pretreatment on Ovarian Function and Assisted Reproductive Outcomes in Patients With Ovarian Hyporesponsiveness.

This study is a prospective, randomized, double-blind, controlled clinical trial designed to investigate the effects of coenzyme Q10 pretreatment on ovarian function and assisted reproductive clinical outcomes in patients with poor ovarian response (POR). The study will be conducted at Tangdu Hospital, Air Force Medical University, with an anticipated enrollment of 128 patients meeting the Bologna diagnostic criteria for POR. Participants will be randomly assigned to either the study group (Coenzyme Q10 group) or the control group (placebo group), with 64 patients in each group.

Study Group: Guidelines for Routine Treatment + Coenzyme Q10 (Nengqilang, Yuanda Pharmaceutical) 30mg orally, 3 times/day, for 8 weeks of pretreatment. ART treatment (in vitro fertilization (IVF)) commenced in the first menstrual cycle following completion of pretreatment.

Control Group: Guidelines for Routine Treatment + placebo for 8 weeks. ART (IVF) initiated in the first menstrual cycle following treatment completion.

Primary endpoints included oocyte retrieval rate and MII oocyte rate. Secondary endpoints encompassed total GnRHA dose, stimulation duration, peak E2 level, cycle cancellation rate, fertilization rate, high-quality embryo rate, clinical pregnancy rate, and miscarriage rate. Safety was assessed by adverse reaction incidence.

The study aims to validate the efficacy and safety of Coenzyme Q10 in improving ovarian response and ART outcomes in patients with poor ovarian response through scientifically rigorous design and statistical analysis. This will provide reliable evidence-based medical support for clinical practice and contribute to enhancing women's reproductive health.

Inclusion criteria

• Individuals seeking IVF-ET fertility treatment;
• Meeting the Bologna criteria for the definition of poor ovarian response (POR), specifically:
• (1) Meeting 2 of the following 3 criteria:
• ① Presence of high-risk factors for POR;
• ② Previous cycle with ≤3 retrieved oocytes under a standard stimulation protocol;
• ③ Abnormal ovarian reserve assessment: Antral follicle count (AFC) <5 or Anti-Müllerian hormone (AMH) <1.1 ng/mL.

or

• (2) Patients with normal age or ovarian reserve function who experience poor ovarian response (POR) after two consecutive cycles of maximum ovarian stimulation protocols;
• BMI between 18.5-28.0 kg/m²
• Voluntarily participate and sign an informed consent form.

Exclusion criteria

• Age ≥40 years;
• Baseline FSH >25 U/L;
• Endocrine disorders (e.g., diabetes, thyroid disease) or autoimmune diseases (e.g., rheumatoid arthritis, lupus, Crohn's disease), chromosomal abnormalities, uterine malformations;
• History of ovarian surgery; history of uterine surgery; adenomyosis;
• History of more than 3 cycles of controlled ovarian stimulation (COS);
• Male infertility;
• Use within the past 3 months of medications that may affect ovarian reserve or ovarian responsiveness (e.g., oral contraceptives, glucocorticoids, antioxidant supplements, insulin sensitizers, DHEA, growth hormone, etc.);
• Use of traditional Chinese medicine within the past 3 months;
• Known allergy to Coenzyme Q10 or panthenol (water-soluble isomer of CoQ10);
• PGT (Preimplantation Genetic Testing) population;
• Acute or chronic renal insufficiency, hemodialysis treatment, history of severe renal impairment;
• Infectious diseases such as HIV, active hepatitis, history of metabolic acidosis, tuberculosis;
• Cardiovascular events within 3 months: coronary artery disease/myocardial infarction/clinically significant congestive heart failure; stroke/transient ischemic attack; deep vein thrombosis/pulmonary embolism; uncontrolled hypertension (systolic ≥160 mmHg or diastolic ≥90 mmHg); diagnosed diabetes; coronary intervention or coronary artery bypass graft surgery;
• Neurological disorders such as dementia (e.g., Alzheimer's/Parkinson's) or use of related medications;
• History of psychological/psychiatric disorders and use of antiepileptic, antidepressant, or similar medications;
• History of cancer, radiation therapy, or chemotherapy;
• Unwillingness to take supplements provided by this study;
• Alcoholics, smokers, or individuals with substance dependence;
• Participants in other clinical trials within the past month;
• Patients deemed ineligible for enrollment by the investigator.