Antioxidant Effect of Treatment With Ginkgo Biloba L. Leaf Extract (IDN 5933) on DNA Cell Maintenance and Genomic Stability: A Randomised Study Versus Placebo
试验速览
- 阶段
- 2 期
- 入组人数
- 66
- 试验地点
- 2
- 主要终点
- Micronucleus frequency
研究概览
简要总结
Primary objective: The primary objective of this study is to assess the effect of Ginkgo biloba L. leaf extract (IDN 5933) in comparison to placebo in human subjects treated at therapeutic doses for 6 months on the level of DNA damage and genomic instability, measured with the Comet Assay and the Micronucleus assay, respectively .
Secondary objective:
The secondary objective of this study is to provide a preliminary assessment of the safety of Ginkgo biloba L. leaf extract (IDN 5933) in human subjects treated at therapeutic doses in term of adverse drug reaction, hepatotoxicity, genotoxicity.
详细描述
The study will be a randomised clinical trial comparing subjects receiving twice-daily doses of either 120-mg of Ginkgo biloba L. leaf extract (IDN 5933) or placebo for a 6 months period.
Primary Endpoints:
- DNA Damage assessed with the Comet assay as proportion of DNA in the tail.
- Micronucleus frequency (MN) in peripheral blood lymphocytes (Frequency per 1000 binucleated cells).
Secondary Endpoints:
- Complete clinical assessment at the beginning and at the end of the study.
- Occurrence of Adverse drug reactions in individuals treated with GBE or placebo.
- Liver functions will be monitored according to biological laboratory examinations and clinical symptoms. A subgroup of individuals will be monitored also for genetic parameters concerning expression patterns of genes putatively associated to early events of HCC carcinogenesis Clinical and biological parameters will be measured in the study groups at the beginning (T0) and at the end of the study (T2).
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 (Participant, Investigator)
入排标准
- 年龄范围
- 65 Years 至 —（Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male and female senior, residents of nursing homes, with no known clinically significant pathology as assessed by the investigator
- •Life expectancy of greater than 1 year
- •Subjects must have given written informed consent in accordance with ICH-GCP (International Conference on Harmonization - Good Clinical Practice) and local laws and regulations
- •To perform the experiment in a typical population treated with Ginkgo biloba L. leaf extract ( IDN 5933) the study will be performed among the residents of nursing homes among the structures of the San Raffaele network, i.e., The San Raffaele Montecompatri, the San Raffaele Rocca di Papa and the San Raffaele Sabaudia . The use of institutionalised subjects will allow a good compliance to the treatment, which will be administered by the nursing homes nurses.
- •Subjects meeting inclusion criteria and signing the informed consent will be randomised to receive 120-mg/twice per day of Ginkgo biloba L. leaf extract ( IDN 5933) or placebo.
排除标准
- •Life expectancy of less than 1 year
- •Treatment with anticoagulant and antiplatelet drugs in subjects with previous report of increased bleeding tendency
- •Cognitive impairment
- •Refuse to sign the informed consent
结局指标
主要结局
Micronucleus frequency
时间窗: through study completion, an average of 1 year
Micronucleus frequency (MN) in peripheral blood lymphocytes (Frequency per 1000 binucleated cells)
DNA Damage
时间窗: through study completion, an average of 1 year
DNA Damage assessed with the Comet assay as proportion of DNA in the tail
次要结局
- Clinical assessment(through study completion, an average of 1 year)
- Liver functions(through study completion, an average of 1 year)
- Gene Expression(A subgroup of individuals will be monitored also through study completion, an average of 1 year)
- Adverse drug reactions(through study completion, an average of 1 year)
研究者
Stefano Bonassi
Head, Clinical and Molecular Epidemiology
IRCCS San Raffaele