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Purification of Testis-Stimulating Factor in Precocious Puberty

2014-08-27 03:58:18 | BioPortfolio

Summary

OBJECTIVES:

Purify and characterize a testis-stimulating factor in the blood of adult volunteers who had precocious puberty as boys.

Description

PROTOCOL OUTLINE: Subjects are treated for 2 months with depot injections of leuprolide acetate every 4 weeks and testosterone replacement every 2 weeks. Hormone levels are tested every other week.

If luteinizing hormone and follicular-stimulating hormone levels are at or below detection on day 56, blood is drawn for a testis-stimulating factor bioassay and subsequent factor purification and characterization.

Volunteers are asked to repeat this 2-month procedure no more than 2 times every 12 months.

Study Design

Primary Purpose: Screening

Conditions

Precocious Puberty

Intervention

leuprolide, testosterone

Status

Completed

Source

Office of Rare Diseases (ORD)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:58:18-0400

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A Study of Leuprolide 11.25 mg and 30 mg Administered Every 3 Months to Treat Central Precocious Puberty

The purpose of this study is to determine if new formulations (11.25 and 30 mg) of leuprolide are effective in treating children with Central Precocious Puberty.

Study of Lupron Depot In The Treatment of Central Precocious Puberty

The purpose of this study is to determine if leuprolide acetate is safe and effective in treating children with Central Precocious Puberty, and to assess long term effects of leuprolide ac...

Safety Extension Study Of Lupron Depot In The Treatment Of Central Precocious Puberty

The purpose of this study is to determine if leuprolide acetate (11.25 mg and 30 mg) is safe in treating children with Central Precocious Puberty over a longer period of time (12 months).

Pharmacokinetic Study of Leuprolide Acetate Injectable Suspension in the Treatment of Central Precocious Puberty

Exploring the efficacy in Leuprolide 45mg in slowing down or reversing Central Precocious Puberty in girls ages 2-8 and boys ages 2-9.

Analysis of Body Mass Index in Central Precocious Puberty Patients Treated With Leuprolide Acetate

Analysis of body mass index in Central Precocious Puberty patients treated with leuprolide acetate

PubMed Articles [570 Associated PubMed Articles listed on BioPortfolio]

Predictors of bone maturation, growth rate and adult height in children with central precocious puberty treated with depot leuprolide acetate.

Children with central precocious puberty (CPP) are treated with gonadotropin-releasing hormone agonists (GnRHa) to suppress puberty. Optimizing treatment outcomes continues to be studied. The relation...

LHCGR Gene Analysis in Girls with Non-Classic Central Precocious Puberty.

Luteinizing hormone (LH) is a useful parameter in diagnosing precocious puberty. The pubertal response of serum LH to a GnRH stimulation test is varied, and clinical symptoms of precocious puberty are...

Central precocious puberty in Boston boys: A 10-year single center experience.

Recent studies in the US and abroad suggest that boys are undergoing puberty at a younger age. It is unknown if this secular trend extends to boys with central precocious puberty (CPP), who sit at the...

Central precocious puberty in a case of late-diagnosed familial testotoxicosis and long-term treatment monitoring.

Familial testotoxicosis is a disease with autosomal dominant inheritance that only affects men and which causes gonadotropin-independent precocious puberty. Although basal levels of luteinizing hormon...

Prevalence of cranial MRI findings in girls with central precocious puberty: a systematic review and meta-analysis.

Some pediatric endocrinologists recommend that girls with central precocious puberty (CPP) have cranial magnetic resonance imaging (MRI) performed only if they are younger than 6 years of age. However...

Medical and Biotech [MESH] Definitions

Development of SEXUAL MATURATION in boys and girls at a chronological age that is 2.5 standard deviations below the mean age at onset of PUBERTY in the population. This early maturation of the hypothalamic-pituitary-gonadal axis results in sexual precocity, elevated serum levels of GONADOTROPINS and GONADAL STEROID HORMONES such as ESTRADIOL and TESTOSTERONE.

A potent synthetic agonist of GONADOTROPIN-RELEASING HORMONE with 3-(2-naphthyl)-D-alanine substitution at residue 6. Nafarelin has been used in the treatments of central PRECOCIOUS PUBERTY and ENDOMETRIOSIS.

Steroidal compounds related to TESTOSTERONE, the major mammalian male sex hormone. Testosterone congeners include important testosterone precursors in the biosynthetic pathways, metabolites, derivatives, and synthetic steroids with androgenic activities.

The lack of development of SEXUAL MATURATION in boys and girls at a chronological age that is 2.5 standard deviations above the mean age at onset of PUBERTY in a population. Delayed puberty can be classified by defects in the hypothalamic LHRH pulse generator, the PITUITARY GLAND, or the GONADS. These patients will undergo spontaneous but delayed puberty whereas patients with SEXUAL INFANTILISM will not.

The sexual functions, activities, attitudes, and orientations of an individual. Sexuality, male or female, becomes evident at PUBERTY under the influence of gonadal steroids (TESTOSTERONE or ESTRADIOL), and social effects.

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