LH Response to GnRH Test in Prepubescent Girls Under 6 Years
Study Details
Study Description
Brief Summary
The project aims to establish the normal LH and FSH response to a standardized GnRH dose in healthy girls below 6 years of age, and compares the normal GnRH response to the GnRH response in girls with early puberty development.
The novel data may help to determine whether the girl is in early puberty or not.
Healthy girls under 6 years of age attending routine examinations including an i.v. line for other causes are included in this study. Our examinations also include bone age determination, Tanner stage determination, and anthropometric measures (height and weight). 10 healthy girls in each of the following age groups: 7-12 months, 12-24 months, 24-36 months, 36-48 months, 48-60 months and 60-72 months are included.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Detailed Description
Please refer to the brief summary which covers the study aim, methods and outcome measures.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: GnRH intervention All participating subjects are assigned to receive an intravenous GnRH agonist injection. |
Drug: GnRH agonist
100 µg/m2 body surface max 100 µg i.v.
Other Names:
|
Outcome Measures
Primary Outcome Measures
- LH response [30 minutes]
Secondary Outcome Measures
- FSH response [30 minutes]
Other Outcome Measures
- Weight [Up till age 6.0 years]
- Height [Up till age 6.0 years]
- Tanner-stage (breast and pubic hair) [Up till age 6.0 years]
- Bone age [Up till age 6.0 years]
- Hormones (estrogen, inhibin B, SHBG, kisspeptin) [Up till age 6.0 years]
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Endocrinologically healthy girls in the age from 7 months to 6 years
-
Obtained oral and written informed consent from participants parents
Exclusion Criteria:
-
Anamnestic, clinical or laboratory findings that indicate that the subject is suffering from other diseases (eg poorly controlled asthma) or is in a condition which might affect the subject's ability to complete the study or which is likely to affect the parameters under investigation.
-
Current medical treatment apart from prophylactic antibiotics or weak analgesics.
-
GFR <50 ml/min/1,73m2 or if absence of previous GFR study: serum creatinine above normal upper age-specific normal range.
-
Clinical signs of precocious puberty
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Børneafdelingen A, AUH, Skejby | Aarhus N | Denmark | 8200 |
Sponsors and Collaborators
- University of Aarhus
Investigators
- Principal Investigator: Niels H. Birkebæk, MD PhD, Børneafdeling A, AUH, Skejby
- Principal Investigator: Esben T. Vestergaard, MD PhD, Børneafdeling A, AUH, Skejby
- Principal Investigator: Kurt Kristensen, MD PhD, Børneafdeling A, AUH, Skejby
- Principal Investigator: Søren Rittig, MD DMSc, Børneafdeling A, AUH, Skejby
- Principal Investigator: Kostas Kamperis, MD PhD, Børneafdeling A, AUH, Skejby
- Principal Investigator: Mia E. Sømod, Stud.med, Børneafdelig A, AUH, Skejby
Study Documents (Full-Text)
None provided.More Information
Publications
- Atay Z, Turan S, Guran T, Furman A, Bereket A. The prevalence and risk factors of premature thelarche and pubarche in 4- to 8-year-old girls. Acta Paediatr. 2012 Feb;101(2):e71-5. doi: 10.1111/j.1651-2227.2011.02444.x. Epub 2011 Sep 23.
- Brito VN, Batista MC, Borges MF, Latronico AC, Kohek MB, Thirone AC, Jorge BH, Arnhold IJ, Mendonca BB. Diagnostic value of fluorometric assays in the evaluation of precocious puberty. J Clin Endocrinol Metab. 1999 Oct;84(10):3539-44.
- Carel JC, Léger J. Clinical practice. Precocious puberty. N Engl J Med. 2008 May 29;358(22):2366-77. doi: 10.1056/NEJMcp0800459. Review.
- Curfman AL, Reljanovic SM, McNelis KM, Dong TT, Lewis SA, Jackson LW, Cromer BA. Premature thelarche in infants and toddlers: prevalence, natural history and environmental determinants. J Pediatr Adolesc Gynecol. 2011 Dec;24(6):338-41. doi: 10.1016/j.jpag.2011.01.003.
- de Vries L, Guz-Mark A, Lazar L, Reches A, Phillip M. Premature thelarche: age at presentation affects clinical course but not clinical characteristics or risk to progress to precocious puberty. J Pediatr. 2010 Mar;156(3):466-71. doi: 10.1016/j.jpeds.2009.09.071. Epub 2009 Nov 14.
- Herman-Giddens ME, Slora EJ, Wasserman RC, Bourdony CJ, Bhapkar MV, Koch GG, Hasemeier CM. Secondary sexual characteristics and menses in young girls seen in office practice: a study from the Pediatric Research in Office Settings network. Pediatrics. 1997 Apr;99(4):505-12.
- Houk CP, Kunselman AR, Lee PA. The diagnostic value of a brief GnRH analogue stimulation test in girls with central precocious puberty: a single 30-minute post-stimulation LH sample is adequate. J Pediatr Endocrinol Metab. 2008 Dec;21(12):1113-8.
- Resende EA, Lara BH, Reis JD, Ferreira BP, Pereira GA, Borges MF. Assessment of basal and gonadotropin-releasing hormone-stimulated gonadotropins by immunochemiluminometric and immunofluorometric assays in normal children. J Clin Endocrinol Metab. 2007 Apr;92(4):1424-9. Epub 2007 Feb 6.
- Teilmann G, Pedersen CB, Jensen TK, Skakkebaek NE, Juul A. Prevalence and incidence of precocious pubertal development in Denmark: an epidemiologic study based on national registries. Pediatrics. 2005 Dec;116(6):1323-8.
- 1-10-72-631-12