- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00694525
Role of the Protein Osteoprotegerin in the Bone Health of Women With Congenital Adrenal Hyperplasia
Potential Modulatory Role of Osteoprotegerin in Bone Metabolism of Patients With 21-Hydroxylase Deficiency
Studieoversikt
Status
Forhold
Detaljert beskrivelse
Because of the excess of androgen caused by 21-OHD CAH, women with CAH may exhibit some male-like characteristics. Glucocorticoids are a member of a class of drugs called corticosteroids, which are used in hormone replacement therapy. In order to counteract the effects of 21-OHD CAH, women with the disease are given hormone replacement therapy with glucocorticoids beginning at infancy. Glucocorticoids are known to cause bone loss. Despite many years of treatment with glucocorticoids, however, young women with 21-OHD CAH seem to be protected against bone loss. Researchers believe that the increased androgen levels in these women leads to increased estrogen levels, which in turn increases OPG production. The increase in OPG levels may protect women against bone loss. This study will evaluate bone density and OPG levels in women with and without 21-OHD CAH to determine the relationship between OPG and bone loss.
Participants in this observational study will attend only one study visit. At this visit, they will undergo a blood draw; a scan of their lower spine, hip, and forearm; height and weight measurements; and a body fat analysis test. This last test will entail a weak and painless electrical signal being sent from foot to foot. Participants will not attend any follow-up visits for this study.
Studietype
Registrering (Forventet)
Kontakter og plasseringer
Studiekontakt
- Navn: Karen Lin Su, MD
- Telefonnummer: 212-241-7847
- E-post: karen.su@mssm.edu
Studiesteder
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New York
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New York, New York, Forente stater, 10029
- Rekruttering
- Mount Sinai School of Medicine
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Underetterforsker:
- Saroj Nimkarn, MD
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Hovedetterforsker:
- Karen Lin Su, MD
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Underetterforsker:
- Maria I. New, MD
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Underetterforsker:
- Mone Zaidi, MD, PhD
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Underetterforsker:
- Henry Bone, MD
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
For People with 21-OHD CAH:
- 21-OHD CAH has been documented by molecular genetic analysis (mutations on CYP21A2 gene on both parental alleles)
- Treatment with glucocorticoid replacement since infancy (begun within the first year)
- Available hormonal data and treatment details over the 5 years prior to study entry
- Premenopausal
For Healthy Controls:
- No diagnosis of 21-OHD CAH, as confirmed by molecular genetic analysis
- No first degree relative is enrolled as a 21-OHD CAHparticipant
- Premenopausal
Exclusion Criteria:
- Medical disorder or treatment with medications known to affect bone density (other than glucocorticoids for 21-OHD CAH patients), including, but not limited to growth hormone, IGF-I, depo-medroxyprogesterone acetate, biphosphonates, oral contraceptives, androgens, thyroxine, or aromatase inhibitors
- Pregnant
- Any smoking within the 6 months prior to study entry
- Cardiac pacemaker or other implanted electronic medical device
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
---|
1
Women in this group will have 21-OHD CAH.
|
2
Women in this group will be healthy controls and will not have 21-OHD CAH.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Comparison of levels of OPG
Tidsramme: Measured throughout the study
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Measured throughout the study
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Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
Comparison of bone mineral density
Tidsramme: Measured throughout the study
|
Measured throughout the study
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Studiestol: Karen Lin Su, MD, Icahn School of Medicine at Mount Sinai
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Canalis E, Bilezikian JP, Angeli A, Giustina A. Perspectives on glucocorticoid-induced osteoporosis. Bone. 2004 Apr;34(4):593-8. doi: 10.1016/j.bone.2003.11.026. No abstract available.
- Paganini C, Radetti G, Livieri C, Braga V, Migliavacca D, Adami S. Height, bone mineral density and bone markers in congenital adrenal hyperplasia. Horm Res. 2000;54(4):164-8. doi: 10.1159/000053253.
- King JA, Wisniewski AB, Bankowski BJ, Carson KA, Zacur HA, Migeon CJ. Long-term corticosteroid replacement and bone mineral density in adult women with classical congenital adrenal hyperplasia. J Clin Endocrinol Metab. 2006 Mar;91(3):865-9. doi: 10.1210/jc.2005-0745. Epub 2005 Nov 8.
- Kudlacek S, Schneider B, Woloszczuk W, Pietschmann P, Willvonseder R; Austrian Study Group on Normative Values of Bone Metabolism. Serum levels of osteoprotegerin increase with age in a healthy adult population. Bone. 2003 Jun;32(6):681-6. doi: 10.1016/s8756-3282(03)00090-5.
- Hagenfeldt K, Martin Ritzen E, Ringertz H, Helleday J, Carlstrom K. Bone mass and body composition of adult women with congenital virilizing 21-hydroxylase deficiency after glucocorticoid treatment since infancy. Eur J Endocrinol. 2000 Nov;143(5):667-71. doi: 10.1530/eje.0.1430667.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Forventet)
Studiet fullført (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
- Patologiske prosesser
- Metabolske sykdommer
- Sykdommer i det endokrine systemet
- Gonadal lidelser
- Forstyrrelser i kjønnsutvikling
- Urogenitale abnormiteter
- Medfødte abnormiteter
- Genetiske sykdommer, medfødte
- Metabolisme, medfødte feil
- Binyresykdommer
- Steroidmetabolisme, medfødte feil
- Hyperplasi
- Adrenal hyperplasi, medfødt
- Adrenogenital syndrom
- Binyrebark hyperfunksjon
Andre studie-ID-numre
- RDCRN 5611
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
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