Genetic Abnormalities and Oxidative Stress in Sperm as Cause of Recurrent Miscarriage.

This study has been completed.
Information provided by:
Instituto Valenciano de Infertilidad, IVI VALENCIA Identifier:
First received: March 13, 2007
Last updated: September 17, 2009
Last verified: September 2009

In recurrent miscarriage, the male factor has been poorly evaluated. In fact, in the vast majority of clinical protocols of recurrent miscarriage, the sperm is not considered or assessed. Recently, some studies have suggested the presence of genetic and metabolic sperm anomalies in couples suffering from repeated miscarriages. Specifically, DNA fragmentation and altered oxidative stress in the sperm and Y microdeletions from blood samples have been related to an increased risk of miscarriage.The aim of the present study is to compare these three parameters in: couples with recurrent miscarriage; oligozoospermic men with or without recurrent miscarriages; and healthy sperm donors, in order to determine their actual impact on this reproductive problem.

Recurrent Miscarriage

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Genetic Abnormalities and Oxidative Stress in Sperm as Cause of Recurrent Miscarriage.

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Further study details as provided by Instituto Valenciano de Infertilidad, IVI VALENCIA:

Estimated Enrollment: 90
Study Start Date: February 2007
Study Completion Date: February 2009
Primary Completion Date: February 2009 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years to 40 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population

Couples with recurrent miscarriages


Inclusion Criteria:

4 groups

  • Recurrent miscarriage, <40 year-old-men, < 38 year-old-women, normal or mild affected sperm, normal parents karyotype, no thrombophilia, normal uterus, no endocrinopathy
  • The same criteria than in group A, but oligozoospermia (1-5 mill/ml)
  • Oligozoospermia (1-5 mill/ml), < 40 year-old-men, no recurrent miscarriages
  • Healthy young sperm donors
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Please refer to this study by its identifier: NCT00447395

Ivi Valencia
Valencia, Spain, 46015
Sponsors and Collaborators
Instituto Valenciano de Infertilidad, IVI VALENCIA
Principal Investigator: Jose Bellver, MD IVI Valencia
  More Information

No publications provided by Instituto Valenciano de Infertilidad, IVI VALENCIA

Additional publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00447395     History of Changes
Other Study ID Numbers: VLC-JB-1106-307-4
Study First Received: March 13, 2007
Last Updated: September 17, 2009
Health Authority: Spain: Comité Ético de Investigación Clínica

Additional relevant MeSH terms:
Abortion, Habitual
Abortion, Spontaneous
Pregnancy Complications processed this record on October 08, 2015