Studying the Effects of 7 Days of Gonadotropin Releasing Hormone (GnRH) Treatment in Men With Hypogonadism
NCT ID: NCT00493961
Last Updated: 2022-07-01
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE1
27 participants
INTERVENTIONAL
1999-01-31
2009-11-17
Brief Summary
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Detailed Description
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Subjects will be selected from a group of adult men (18-65 years)based on the demonstration of a low testosterone level (\<100 ng/dL) in association with low or inappropriately normal gonadotropin levels. All patients will undergo an initial assessment that includes an overnight 12-hour frequent blood sampling study to determine their degree of endogenous GnRH secretion. Following the overnight evaluation, subjects will have daily outpatient visits for 7 consecutive days when they will receive a GnRH bolus followed by 2hrs of blood sampling.
Conditions
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Study Design
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NON_RANDOMIZED
SINGLE_GROUP
OTHER
NONE
Interventions
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gonadotropin releasing hormone (GnRH)
Pulsatile GnRH (25 ng/kg per bolus every two hours via microinfusion pump)
Eligibility Criteria
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Inclusion Criteria
* Serum testosterone \<100 ng/dL
18 Years
65 Years
MALE
No
Sponsors
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Massachusetts General Hospital
OTHER
Responsible Party
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Stephanie B. Seminara, MD
Chief, Reproductive Endocrine Unit; Professor of Medicine, Harvard Medical School; Director, Harvard Reproductive Endocrine Sciences Center
Principal Investigators
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Seminara B Stephanie, MD
Role: PRINCIPAL_INVESTIGATOR
Massachusetts General Hospital
Locations
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Massachusetts General Hospital
Boston, Massachusetts, United States
Countries
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References
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Belchetz PE, Plant TM, Nakai Y, Keogh EJ, Knobil E. Hypophysial responses to continuous and intermittent delivery of hypopthalamic gonadotropin-releasing hormone. Science. 1978 Nov 10;202(4368):631-3. doi: 10.1126/science.100883.
Seminara SB, Hayes FJ, Crowley WF Jr. Gonadotropin-releasing hormone deficiency in the human (idiopathic hypogonadotropic hypogonadism and Kallmann's syndrome): pathophysiological and genetic considerations. Endocr Rev. 1998 Oct;19(5):521-39. doi: 10.1210/edrv.19.5.0344. No abstract available.
Arimura A, Kastin AJ, Gonzalez-Barcena D, Siller J, Weaver RE, Schally AV. Disappearance of LH-releasing hormone in man as determined by radioimmunoassay. Clin Endocrinol (Oxf). 1974 Oct;3(4):421-5. doi: 10.1111/j.1365-2265.1974.tb02812.x. No abstract available.
Pimstone B, Epstein S, Hamilton SM, LeRoith D, Hendricks S. Metabolic clearance and plasma half disappearance time of exogenous gonadotropin releasing hormone in normal subjects and in patients with liver disease and chronic renal failure. J Clin Endocrinol Metab. 1977 Feb;44(2):356-60. doi: 10.1210/jcem-44-2-356.
Clarke IJ, Cummins JT. The temporal relationship between gonadotropin releasing hormone (GnRH) and luteinizing hormone (LH) secretion in ovariectomized ewes. Endocrinology. 1982 Nov;111(5):1737-9. doi: 10.1210/endo-111-5-1737. No abstract available.
Karsch FJ, Bowen JM, Caraty A, Evans NP, Moenter SM. Gonadotropin-releasing hormone requirements for ovulation. Biol Reprod. 1997 Feb;56(2):303-9. doi: 10.1095/biolreprod56.2.303.
Spratt DI, O'Dea LS, Schoenfeld D, Butler J, Rao PN, Crowley WF Jr. Neuroendocrine-gonadal axis in men: frequent sampling of LH, FSH, and testosterone. Am J Physiol. 1988 May;254(5 Pt 1):E658-66. doi: 10.1152/ajpendo.1988.254.5.E658.
Hayes FJ, McNicholl DJ, Schoenfeld D, Marsh EE, Hall JE. Free alpha-subunit is superior to luteinizing hormone as a marker of gonadotropin-releasing hormone despite desensitization at fast pulse frequencies. J Clin Endocrinol Metab. 1999 Mar;84(3):1028-36. doi: 10.1210/jcem.84.3.5579.
Hoffman AR, Crowley WF Jr. Induction of puberty in men by long-term pulsatile administration of low-dose gonadotropin-releasing hormone. N Engl J Med. 1982 Nov 11;307(20):1237-41. doi: 10.1056/NEJM198211113072003.
Whitcomb RW, Crowley WF Jr. Clinical review 4: Diagnosis and treatment of isolated gonadotropin-releasing hormone deficiency in men. J Clin Endocrinol Metab. 1990 Jan;70(1):3-7. doi: 10.1210/jcem-70-1-3. No abstract available.
Filippi G. Klinefelter's syndrome in Sardinia. Clinical report of 265 hypogonadic males detected at the time of military check-up. Clin Genet. 1986 Oct;30(4):276-84.
Fromantin M, Gineste J, Didier A, Rouvier J. [Impuberism and hypogonadism at induction into military service. Statistical study]. Probl Actuels Endocrinol Nutr. 1973 May 3;16:179-99. No abstract available. French.
Filicori M, Butler JP, Crowley WF Jr. Neuroendocrine regulation of the corpus luteum in the human. Evidence for pulsatile progesterone secretion. J Clin Invest. 1984 Jun;73(6):1638-47. doi: 10.1172/JCI111370.
Narasimha Rao P, Moore PH Jr. Synthesis of new steroid haptens for radioimmunoassay. Part I. 15beta-Carboxyethylmercaptotestosterone-bovine serum albumin conjugate. Measurement of testosterone in male plasma without chromatography. Steroids. 1976 Jul;28(1):101-9. doi: 10.1016/0039-128x(76)90129-x.
Groome NP, Illingworth PJ, O'Brien M, Pai R, Rodger FE, Mather JP, McNeilly AS. Measurement of dimeric inhibin B throughout the human menstrual cycle. J Clin Endocrinol Metab. 1996 Apr;81(4):1401-5. doi: 10.1210/jcem.81.4.8636341.
Landy H, Schneyer AL, Whitcomb RW, Crowley WF Jr. Validation of highly specific and sensitive radioimmunoassays for lutropin, follitropin, and free alpha subunit in unextracted urine. Clin Chem. 1990 Feb;36(2):340-4.
Pitteloud N, Thambundit A, Dwyer AA, Falardeau JL, Plummer L, Caronia LM, Hayes FJ, Lee H, Boepple PA, Crowley WF Jr. Role of seminiferous tubular development in determining the FSH versus LH responsiveness to GnRH in early sexual maturation. Neuroendocrinology. 2009;90(3):260-8. doi: 10.1159/000245383. Epub 2009 Oct 15.
Sykiotis GP, Hoang XH, Avbelj M, Hayes FJ, Thambundit A, Dwyer A, Au M, Plummer L, Crowley WF Jr, Pitteloud N. Congenital idiopathic hypogonadotropic hypogonadism: evidence of defects in the hypothalamus, pituitary, and testes. J Clin Endocrinol Metab. 2010 Jun;95(6):3019-27. doi: 10.1210/jc.2009-2582. Epub 2010 Apr 9.
Related Links
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Clinical research studies of the Reproductive Endocrine Unit at the Massachusetts General Hospital. Click here for more information about this study: Effects of Seven Days of Exogenous Pulsatile GnRH Treatment...
Other Identifiers
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U54HD028138-447
Identifier Type: -
Identifier Source: org_study_id
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