MIG-2: Glycosphingolipid Inhibition and Spermatogenesis in Man: A Pilot Study (MIG 2)
Study Details
Study Description
Brief Summary
The purpose of this research study is to help in the development of safe, effective and reversible male contraception. We are examining the impact of the drug Miglustat on sperm production in normal men.
We want to see if Miglustat will inhibit sperm production in men and act as a reversible male contraceptive, as a study in mice administered Miglustat showed a reversible inhibition of sperm production. We believe Miglustat may have some potential as a safe, reversible male contraceptive.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 4 |
Detailed Description
Glycosphingolipids (GSL) are a main constituent of the sperm cell membrane in mammals. Male mice deficient in enzymes involved in GSL synthesis have severely impaired fertility and knockout mice are infertile. Recently, it was demonstrated that administration to mice of an inhibitor of ceramide-specific glycosyltransferase, the first step in the biosynthetic pathway of GSL formation, resulted in reversible infertility without discernable adverse side effects. This inhibitor was Miglustat, which is an alkylated imino sugar. The impact of Miglustat therapy on human spermatogenesis is unknown. If the effects on sperm morphology and motility are similar to those observed in mice, Miglustat or other GSL inhibitors might have potential utility as non-hormonal male contraceptives.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: 1 100 mg Miglustat BID (twice daily) for six weeks |
Drug: Miglustat (Zavesca)
100 mg Miglustat BID (twice daily) for six weeks
Other Names:
|
Outcome Measures
Primary Outcome Measures
- The impact of GSL inhibition on human spermatogenesis, if impairment is seen with Miglustat administration, larger contraceptive efficacy studies of Miglustat or other inhibitors of GSL's will be performed. [3 months]
Secondary Outcome Measures
- Safety [3 months]
Eligibility Criteria
Criteria
Inclusion Criteria:
- Healthy male, normal lab test
Exclusion Criteria:
- Abnormal lab test, history or evidence of significant chronic or acute medical illness, previous or current ethanol or anabolic steroid abuse.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | University of Washington | Seattle | Washington | United States | 98195 |
Sponsors and Collaborators
- University of Washington
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Investigators
- Principal Investigator: John Amory, University of Washington
Study Documents (Full-Text)
None provided.More Information
Additional Information:
Publications
- Beutler E. Gaucher disease. Curr Opin Hematol. 1997 Jan;4(1):19-23. Review.
- Fujimoto H, Tadano-Aritomi K, Tokumasu A, Ito K, Hikita T, Suzuki K, Ishizuka I. Requirement of seminolipid in spermatogenesis revealed by UDP-galactose: Ceramide galactosyltransferase-deficient mice. J Biol Chem. 2000 Jul 28;275(30):22623-6.
- Honke K, Hirahara Y, Dupree J, Suzuki K, Popko B, Fukushima K, Fukushima J, Nagasawa T, Yoshida N, Wada Y, Taniguchi N. Paranodal junction formation and spermatogenesis require sulfoglycolipids. Proc Natl Acad Sci U S A. 2002 Apr 2;99(7):4227-32. Epub 2002 Mar 26.
- Platt FM, Neises GR, Karlsson GB, Dwek RA, Butters TD. N-butyldeoxygalactonojirimycin inhibits glycolipid biosynthesis but does not affect N-linked oligosaccharide processing. J Biol Chem. 1994 Oct 28;269(43):27108-14.
- Ritter G, Krause W, Geyer R, Stirm S, Wiegandt H. Glycosphingolipid composition of human semen. Arch Biochem Biophys. 1987 Sep;257(2):370-8.
- Takamiya K, Yamamoto A, Furukawa K, Zhao J, Fukumoto S, Yamashiro S, Okada M, Haraguchi M, Shin M, Kishikawa M, Shiku H, Aizawa S, Furukawa K. Complex gangliosides are essential in spermatogenesis of mice: possible roles in the transport of testosterone. Proc Natl Acad Sci U S A. 1998 Oct 13;95(21):12147-52.
- van der Spoel AC, Jeyakumar M, Butters TD, Charlton HM, Moore HD, Dwek RA, Platt FM. Reversible infertility in male mice after oral administration of alkylated imino sugars: a nonhormonal approach to male contraception. Proc Natl Acad Sci U S A. 2002 Dec 24;99(26):17173-8. Epub 2002 Dec 11.
- 04-3806-D
- U54HD042454