HPV as a Possible Cause of Azoospermia
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 140
- 试验地点
- 1
- 主要终点
- HPV DNA in testicular tissue
研究概览
简要总结
Azoospermia is found in 5-20% of all men suffering from infertility, and in more than 20% azoospermia remains unexplained. The investigators suggest, that HPV may be an etiological factor in azoospermia and reduced sperm production.
The investigators plan to examine the occurrence of HPV in testicular tissue from 100 azoospermic men and to compare with the HPV occurrence in testicular tissue from a control group of 40 normal, healthy men undergoing vasectomy. Since HPV, in a recent Danish study, was detected on sperm in 16% of 188 randomly selected semen donors, the investigators also plan to examine the occurrence of HPV on sperm ejaculated during the last week before vasectomy. If HPV should be found in testicular tissue from men belonging to the control group, it will be highly relevant to compare with the HPV occurrence on sperm ejaculated from the men in concern.
A Linear Array HPV Genotyping Kit from Roche will be used for detection of HPV in testicular tissue and ejaculates. In total, with this test kit 37 HPV genotypes are examined for, including 13 high risk types.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Men with azoospermia (Group 1) and proven fertile men undergoing vasectomy (Group 2)
排除标准
- •Men with testicular abnormalities (Group 2)
- •Men who do not understand the purpose and possible consequences of the study (both groups)
结局指标
主要结局
HPV DNA in testicular tissue
时间窗: Two years
In tissue from both azoospermic and proven fertile men
次要结局
- HPV DNA in ejaculates(Two years)
研究者
Jens Fedder
Professor, Consultant, Ph.D.
Odense University Hospital