| The Molecular Basis of Inherited Reproductive Disorders (NCT05971836) | Stephanie B. Seminara, MD | 2021-01-21 |
| Efficacy and Safety of Long Term Use of hCG or hCG Plus hMG in Males With Isolated Hypogonadotropic Hypogonadism (IHH) (NCT03687606) | Tongji Hospital | 2018-10-18 |
| GROWing Up With Rare GENEtic Syndromes (NCT04463316) | dr. Laura C. G. de Graaff-Herder | 2018-10-01 |
| Patient and Healthcare Professional Views on Genetic/Genomic Information and Testing (NCT04733274) | Boston College | 2018-03-22 |
| Human Menopausal Gonadotropin Combining With Human Chorionic Gonadotropin Treat Congenital Hypogonadotropic Hypogonadism (NCT02880280) | Beijing Children's Hospital | 2016-08-01 |
| Health Needs of Patients With Kallmann Syndrome (NCT01914172) | Centre Hospitalier Universitaire Vaudois | 2013-07-01 |
| Kisspeptin in the Evaluation of Delayed Puberty (NCT01438034) | Massachusetts General Hospital | 2013-06-08 |
| Genetics of Reproductive Disorders (Including Kallmann Syndrome) and Cleft Lip and/or Palate (NCT01601171) | Centre Hospitalier Universitaire Vaudois | 2012-03-01 |
| Effect of Varying Testosterone Levels on Insulin Sensitivity in Men With Idiopathic Hypogonadotropic Hypogonadism (IHH) (NCT03118479) | Massachusetts General Hospital | 2010-05-01 |
| Sequential Therapy for Hypogonadotropic Hypogonadism (NCT01403532) | Shanghai Jiao Tong University School of Medicine | 2009-09-01 |
| Kisspeptin Administration in the Adult (NCT00914823) | Massachusetts General Hospital | 2009-06-23 |
| A Study to Characterize Epidemiology, Clinical and Genetic Features of Kallmann Syndrome in Finland (NCT00623116) | Hospital for Children and Adolescents, Finland | 2007-12-01 |
| Follicle Stimulating Hormone (FSH) to Improve Testicular Development in Men With Hypogonadism (NCT00064987) | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | 2001-04-01 |
| Studying the Effects of 7 Days of Gonadotropin Releasing Hormone (GnRH) Treatment in Men With Hypogonadism (NCT00493961) | Massachusetts General Hospital | 1999-01-01 |
| Investigation of the Genetic Causes of Kallmann Syndrome and Reproductive Disorders (NCT00494169) | Massachusetts General Hospital | 1999-01-01 |
| Investigating the Regulation of Reproductive Hormones in Adult Men (NCT00392457) | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | 1995-07-01 |
| Examination of Idiopathic Hypogonadotropic Hypogonadism (IHH)and Kallmann Syndrome (KS) (NCT00392756) | Massachusetts General Hospital | 1989-04-01 |