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Trial to Evaluate Erectile Function, Fertility and Sperm Count in Male Cyclists Compared to Age Matched Controls

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2007 by Sheba Medical Center.
Recruitment status was:  Recruiting
Information provided by:
Sheba Medical Center Identifier:
First received: January 25, 2006
Last updated: August 6, 2007
Last verified: August 2007
Bicycle riding is associated with related diverse urogenital symptoms ranging from genital numbness to erectile dysfunction (ED). Very little is known about the quality of sperm in cyclists and whether a connection exists between erectile dysfunction and azoospermia.

Condition Phase
Erectile Dysfunction
Phase 2

Study Type: Observational
Study Design: Observational Model: Defined Population
Time Perspective: Longitudinal
Time Perspective: Retrospective/Prospective
Official Title: Prospective Controlled Trial to Evaluate Erectile Function, Fertility and Sperm Count in Male Cyclists Compared to Age Matched Controls

Resource links provided by NLM:

Further study details as provided by Sheba Medical Center:

Estimated Enrollment: 30
Study Start Date: February 2006

Ages Eligible for Study:   20 Years to 35 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Males ages 20-35, with at least 2 years of bicycle riding, at least 2 hours a week.

Exclusion Criteria:

  • History of prostatic surgery, testicular surgery, or single testis,
  • Patients after chemotherapy,
  • Patients receiving hormonal therapy,
  • Patients receiving alpha blockers for any indication.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00282477

Contact: Uri A. Lindner, M.D 972-3-5302413

Chaim Sheba Medical Center Recruiting
Ramat-Gan, Israel, 5261
Sub-Investigator: Uri A. Lindner, M.D         
Sponsors and Collaborators
Sheba Medical Center
Principal Investigator: Igael Madgar, M.D Chaim Sheba Medical Center
  More Information Identifier: NCT00282477     History of Changes
Other Study ID Numbers: SHEBA-05-4031-IM-CTIL
Study First Received: January 25, 2006
Last Updated: August 6, 2007

Keywords provided by Sheba Medical Center:

Additional relevant MeSH terms:
Erectile Dysfunction
Sexual Dysfunction, Physiological
Genital Diseases, Male
Sexual Dysfunctions, Psychological
Mental Disorders
Infertility, Male
Infertility processed this record on May 25, 2017