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The Impact of a Nutritional Supplement (Impryl®) on Male Fertility
Sponsor: Radboud University Medical Center
Summary
Infertility is a worldwide problem and about 10%-15% of all couples will be affected by the inability to have children. In approximately 50% of infertile couples a male factor is involved. Male infertility is of multifactorial origin. In the past decade, the role of oxidative stress on sperm has been researched thoroughly and found to be the problem in 30% to 80% of male infertility cases. Impryl® is a nutritional supplement mainly consisting of vitamin B, which works on the metabolic system by activating the one carbon cycle and recycling of homocysteine without the use of any direct strong antioxidants. In this study the investigators want to determine the effectiveness of nutritional supplement Impryl® in men of infertile couples on ongoing pregnancy rate, with or without assisted reproduction technology (ART).
Key Details
Gender
MALE
Age Range
18 Years - 50 Years
Study Type
INTERVENTIONAL
Enrollment
1200
Start Date
2018-04-23
Completion Date
2026-04-30
Last Updated
2025-04-04
Healthy Volunteers
Yes
Conditions
Interventions
Impryl
Food supplement with betaine, cystine, zinc, niacin, folic acid (5MTHF-glucosamine), Vitamin B12 (cobalamin), Vitamin B6, Vitamin B2 (riboflavin)
Placebo
Inactive ingredients, placebo
Locations (21)
Fertiliteitscentrum Voorburg
Voorburg, Gelderland, Netherlands
Jeroen Bosch Ziekenhuis
's-Hertogenbosch, Netherlands
Gelre Ziekenhuizen
Apeldoorn, Netherlands
Rijnstate
Arnhem, Netherlands
Maasziekenhuis Pantein
Boxmeer, Netherlands
Amphia ziekenhuis
Breda, Netherlands
Slingeland Ziekenhuis
Doetinchem, Netherlands
Albert Schweitzer ziekenhuis
Dordrecht, Netherlands
Catharina Ziekenhuis Eindhoven
Eindhoven, Netherlands
Nij Geertgen
Elsendorp, Netherlands
Treant ziekenhuis Scheper
Emmen, Netherlands
Nij Linge
Gorinchem, Netherlands
Medisch Centrum Kinderwens
Leiderdorp, Netherlands
Radboudumc
Nijmegen, Netherlands
Bravis Ziekenhuis
Roosendaal, Netherlands
Franciscus Gasthuis en Vlietland
Rotterdam, Netherlands
Maasstad ziekenhuis
Rotterdam, Netherlands
Elisabeth-TweeSteden Ziekenhuis
Tilburg, Netherlands
Bernhoven Ziekenhuis
Uden, Netherlands
Máxima Medisch Centrum
Veldhoven, Netherlands
Nij Barrahus
Wolvega, Netherlands