Melatonin Effects on Luteinizing Hormone
试验速览
- 阶段
- 1 期
- 状态
- 终止
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Hot flashes log
研究概览
简要总结
In many mammals, the duration of the nocturnal melatonin elevation regulates seasonal changes in reproductive hormones such as luteinizing hormone (LH). Melatonin's effects on human reproductive endocrinology are uncertain. It is thought that the same hypothalamic pulse generator may both trigger the pulsatile release of GnRH and LH and also cause hot flashes. Thus, if melatonin suppressed this pulse generator in postmenopausal women, it might moderate hot flashes. This clinical trial tested the hypothesis that melatonin could suppress LH and relieve hot flashes.
详细描述
Twenty postmenopausal women troubled by hot flashes underwent one week of baseline observation followed by 4 weeks of a randomized controlled trial of melatonin or matched placebo. The three randomized treatments were melatonin 0.5 mg 2.5-3 hours before bedtime, melatonin 0.5 mg upon morning awakening, or placebo capsules. Twelve of the women were admitted to the GCRC at baseline and at the end of randomized treatment for 24-hour sampling of blood for LH. Morning urine samples were collected twice weekly to measure LH excretion. Subjective responses measured throughout baseline and treatment included sleep and hot flash logs, the CESD and QIDS depression self-ratings, and the SAFTEE physical symptom inventory.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double
入排标准
- 年龄范围
- 50 Years 至 70 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Postmenopausal woman
- •Troubled by hot flashes
排除标准
- •Use of reproductive hormones other than continuous estrogen or progesterone hormone replacement
- •Any acute illness
- •Any anticipated changes of medication
- •Anemia (hemoglobin <12) or poor veins Recent trans-time-zone jet travel, shift work, or irregular sleep habits Any neurological or pituitary disease
结局指标
主要结局
Hot flashes log
Sleep log
QIDS
CESD
Luteinizing hormone (urine)
Luteinizing hormone (blood)
次要结局
- SAFTEE inventory of symptoms and adverse effects
- Other adverse events