- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01661010
Den kliniska studien av könskromosomvarianter
Den kliniska studien av patienter med könskromosomvarianter
Purpose/Lay Summary: Background:
- Chromosomes are the structures inside of each cell that carry our genetic material (genes). Certain differences in the sex chromosomes are known to cause various diseases, such as infertility, Turner syndrome, or Klinefelter syndrome. However, it is not fully understood why these differences are seen and what clinical findings may be caused with different sex chromosome variants. This study is seeking to learn more about the genetic and clinical characteristics of disorders related to the X and Y chromosomes.
Objectives:
- To study related medical conditions in people with sex chromosome variants.
Eligibility:
- Patients with known sex chromosome differences may be eligible to participate.
- Healthy volunteers age 18 - 55
Design:
- Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected.
- This study will last about 5 days. Participants will have a variety of endocrine and other tests. They will provide blood, urine, and semen samples for these tests.
- Imaging studies of the heart and abdomen will be performed. These tests may include ultrasounds and magnetic resonance imaging.
- Participants will also have their vision and hearing checked.
- Healthy volunteers with have a single day visit for a medical history, physical exam, and blood and skin samples.
- Treatment will not be provided as part of this study.
- Compensation is offered.
Studieöversikt
Status
Detaljerad beskrivning
Infertility is a disease that affects approximately 10% of couples world-wide. Causes of infertility are varied and include age-related decline in fecundity, other causes of ovulatory dysfunction, tubal and pelvic pathology, male causes, idiopathic, and multifactorial. The underlying genetic causes of infertility are incompletely understood. The purpose of this study is to increase our understanding of the genetic and clinical manifestations of infertility related to sex-chromosome variants through detailed physical, radiologic, and laboratory studies. We will concentrate on a group of patients (both male and female) with known sex-chromosome variationsfully characterized through genetic sequencing and karyotyping. Other patients with
sex chromosome variants will be invited depending on the variant described. Patients recruited and consenting to this study will be evaluated at the NIH Clinical Center
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Studieorter
-
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Maryland
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Bethesda, Maryland, Förenta staterna, 20892
- National Institutes of Health Clinical Center
-
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Patients previously identified through outside research or diagnostic labs as having sex-chromosome variants causing deletion/duplication of sex-linked genes or entire sex chromosomes.@@@
Beskrivning
-
INCLUSION CRITERIA:
- Patients previously identified through outside research or diagnostic labs as having sex-chromosome variants causing deletion/duplication of sex-linked genes or entire sex chromosomes, male and female.
- In the event that a patient with a sex-chromosome variant self-refers to the protocol, medical records will be reviewed by a committee to include Dr. David Page, Dr. Maximilian Muenke, and others to decide whether the patient is appropriate for enrollment in the protocol.
- Willing family members of subjects enrolled may be enrolled as control subjects.
EXCLUSION CRITERIA:
- We reserve the right to exclude patients with medical conditions that would place a potential participant at high risk of complications if managed at the NIH clinical center (ex. dialysis dependency, unstable cardiac conditions, unstable severe depression/suicidality).
- We reserve the right to exclude cases that are clearly not related to sex-chromosome variants, infertility or our direct research interests (e.g. infertility with clearly non-genetic etiology). This almost never happens, and we would attempt to make referrals to a more
appropriate investigator.
It is our intention to try to remove as many economic, cultural, geographic, racial, and gender barriers as we reasonably can to promote a diverse participation of sex-chromosome variant cases for research purposes.
Studieplan
Hur är studien utformad?
Designdetaljer
- Observationsmodeller: COHORT
- Tidsperspektiv: PROSPECTIVE
Kohorter och interventioner
Grupp / Kohort |
|---|
|
Control
Family members can serve as control group |
|
Sex-linked genes
Patients previously identified through outside research or diagnostic labs as having sex-chromosome variants causing deletion/duplication of sex-linked genes or entire sex chromosomes. |
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Phenotype
Tidsram: Ongoing
|
To characterize the physical, reproductive, endocrinologic and radiologic phenotype of a group of patients who have known sex-chromosome structural and copy-number variants. |
Ongoing
|
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Spectrum
Tidsram: Ongoing
|
To examine the spectrum of clinical characteristics of infertility and other conditions related to sex-chromosome variants and facilitate early clinical recognition, diagnostic confirmation, anticipatory management, prognostication, and proper genetic counseling. |
Ongoing
|
Samarbetspartners och utredare
Utredare
- Huvudutredare: Ashley J Buscetta, C.R.N.P., National Human Genome Research Institute (NHGRI)
Publikationer och användbara länkar
Allmänna publikationer
- Brandell RA, Mielnik A, Liotta D, Ye Z, Veeck LL, Palermo GD, Schlegel PN. AZFb deletions predict the absence of spermatozoa with testicular sperm extraction: preliminary report of a prognostic genetic test. Hum Reprod. 1998 Oct;13(1O):2812-5. doi: 10.1093/humrep/13.10.2812.
- Bondy CA; Turner Syndrome Study Group. Care of girls and women with Turner syndrome: a guideline of the Turner Syndrome Study Group. J Clin Endocrinol Metab. 2007 Jan;92(1):10-25. doi: 10.1210/jc.2006-1374. Epub 2006 Oct 17.
- Berta P, Hawkins JR, Sinclair AH, Taylor A, Griffiths BL, Goodfellow PN, Fellous M. Genetic evidence equating SRY and the testis-determining factor. Nature. 1990 Nov 29;348(6300):448-50. doi: 10.1038/348448A0.
Användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Beräknad)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
- Urogenitala sjukdomar
- Genitala sjukdomar
- Sjukdomar i det endokrina systemet
- Hjärt-kärlsjukdomar
- Patologiska processer
- Manliga urogenitala sjukdomar
- Kvinnliga urogenitala sjukdomar
- Kvinnliga urogenitala sjukdomar och graviditetskomplikationer
- Hjärtsjukdom
- Genetiska sjukdomar, medfödda
- Gonadal sjukdomar
- Medfödda abnormiteter
- Kardiovaskulära avvikelser
- Hjärtfel, medfödda
- Störningar i sexuell utveckling
- Urogenitala abnormiteter
- Sexkromosomstörningar
- Kromosomstörningar
- Kromosomavvikelser
- Könskromosomstörningar av könsutveckling
- Gonadal dysgenes
- Medfödda, ärftliga och neonatala sjukdomar och abnormiteter
- Patologiska tillstånd, tecken och symtom
- Infertilitet
- Turnersyndrom
- Aneuploidi
Andra studie-ID-nummer
- 120181
- 12-HG-0181
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
Läkemedels- och apparatinformation, studiedokument
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