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Background: Perimenopausal syndrome (PMS) refers to a series of symptoms caused by the dynamic fluctuations of sex hormones during menopause. Menopausal symptoms including hot flushes, vaginal dryness and mood swings are experienced by about 80% of Chinese women aged 45 to 60. In the past year, 235 patients visited CMCTR(ND), a TCM center set up by HA and operated by HKFTU Workers' Medical Clinics since 2008, suffered from PMS.
According to literature review, high proportion of clinical trials regarding perimenopausal women used fixed formula treatment. However, different constitutional types were found in perimenopausal women and different fixed formulae were used in different research. Apart from kidney yin deficiency, perimenopausal women were also found in liver-kidney yin deficiency, kidney yang deficiency, kidney yin and yang deficiency, disharmony between heart and kidney, liver qi stagnation, etc. It is difficult to draw a conclusion that any single fixed formula could have the best efficacy on PMS. Therefore, it is worth studying to see whether syndrome differentiation would be a better choice for PMS treatment.
Objective: The study aims to evaluate whether syndrome differentiated treatment is better than fixed formula (Er-Xian decoction) treatment for perimenopausal women.
Design: This is a pilot single-blinded, randomized controlled trial.
Participants: Chinese women aged 45-55 year with menstruation abnormalities (menstrual irregularity in past 12 months; or menstrual period off at least twice in past 12 months; or amenorrhea of 2 to 12 months); also suffering any following perimenopausal symptoms: vasomotor symptoms (hot flushes, sweats), psychological symptoms (insomnia, migraine, irritability), or genitourinary symptoms (vaginal dryness, dyspareunia)
Interventions: A randomized controlled trial will be conducted to assess the efficacy of syndrome differentiated treatment versus a fixed formula (Er-Xian decoction) in treating PMS. 100 participants will be randomly divided into 2 groups. Intervention group of participants will be given medication by syndrome differentiating from qualified TCM Practitioners while the control group of participants will be given a fixed formula.
Outcome measures: Primary assessments outcome measure is the Kupperman Index, and the secondary outcome measure is MENQOL questionnaire.
Full description
Perimenopausal syndrome is also known as menopausal syndrome. Menopause Syndrome refers to women due to ovarian dysfunction or loss of estrogen causing a variety of systemic dysfunctions in the body, including the autonomic nervous system, dysfunction and metabolic disorders-based symptoms such as hot flushes and sweating, sleep disorders, depression, multiple joint pains, headache, dizziness, fatigue, etc. These symptoms seriously affect menopausal women . Modern medical treatment of perimenopausal syndrome mainly focus on Hormonal Therapy (HT). Studies have shown that the clinical effect of hormonal therapy would quickly relieve the symptoms of perimenopausal syndrome, including urogenital atrophy and prevention of osteoporosis .
However there were some scholars believed that although short-term use of hormone supplement therapy could relieve the symptoms of perimenopausal women, the role of estrogen treatment in postmenopausal women still needed to be further explored . The reason was that hormonal replacement therapy can cause more adverse reactions and potential risks such as increased cardiovascular disease, cerebral infarction, breast-related diseases, risk of embolism in veins and lungs and other diseases .
In the previous study, the investigators found that the Chinese herbal formula Er-Xian decoction was superior to placebo in reducing the frequency and severity of hot flushes and in relieving menopausal symptoms in Hong Kong perimenopausal women. It was well tolerated, with no serious adverse events noted during the study period. The study proved the effectiveness of traditional Chinese medicine in the treatment of menopausal symptoms. The investigators designed this experiment in order to further understand the effectiveness between syndrome differentiation treatment and fixed prescription.
Syndrome differentiation and treatment is the process of recognizing and resolving diseases, the embodiment of the combination of theory and practice, the specific clinical application of principles and methods, and the basic principles guiding the clinical work of traditional Chinese medicine. Dialectics is the process of authentication. Syndrome is a summary of the pathological reflections of the body through four diagnostic methods (inspection, listening and smelling, inquiries, and palpation ). It would help to establish disease stages, including the location of disease, cause, nature, and relationship between healthy qi and pathogenic qi. Therefore, the syndrome would reveal the essence of the disease, and therefore enhance the disease management. Corresponding treatment method is determined based on the result of syndrome differentiation. Syndrome differentiation and treatment are two inseparable parts in the process of diagnosis and treatment of diseases.
There is no record of the term of the perimenopausal syndrome in the ancient Chinese medicine books. The investigators can find some similar symptoms recorded in "Lily Disease" , "Hysteria", and "Insomnia"or "Depression" and other diseases in ancient books. Modern Chinese medicine gynecology calls it "Premenopausal". Traditional Chinese medicine believes that in perimenopausal women, the kidney qi is gradually declining. Dysfunction of qi and blood is mainly caused by kidney deficiency. Among them, the syndrome of kidney yin deficiency is the most common. According to the literature, the syndrome types are divided as follows:
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100 participants in 2 patient groups
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Zhong LD Linda; Hsu WS Wincy
Data sourced from clinicaltrials.gov
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