- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01643512
Heritability of Fatty Liver as Measured by MRI: a Cross Sectional Study of Twins and Family Members
3. maj 2021 opdateret af: Rohit Loomba, University of California, San Diego
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease in the United States.
The cause of NAFLD is poorly defined but is thought to involve complex interactions of genetic and environmental factors.
NAFLD is often associated with the traits of the metabolic syndrome including diabetes, high cholesterol or elevated blood pressure.
Currently, there are no accurate noninvasive means of evaluating NAFLD and its more serious form which includes inflammation that may lead to severe scarring in the liver.
The goal of this study is to evaluate shared genetic factors that underlie NAFLD and features of the metabolic syndrome as determined by blood work and radiographic studies in a cohort of twins and first degree relatives.
Studieoversigt
Status
Rekruttering
Betingelser
Detaljeret beskrivelse
Following an information session during which the primary consent document, a genetic sampling consent document and the UCSD HIPPA forms are reviewed, discussed and signed, the following tests and procedures will be done. For each subject, the study visit will be for 3-4 hours.
- Subjects will undergo a detailed history, physical examination, anthropometrics and vital signs including blood pressure and pulse. Standardized questionnaires including the Alcohol Use Disorders Identification Tests (AUDIT) and Skinner Lifetime Drinking History will be used to identify alcohol use as a cause of fatty liver disease. A trained investigator will measure waist/hip ratio at the same time as other measures are taken. The Body Mass Index (BMI) will be as calculated by measuring each subject's weight (Kg) and height (m) with empty bowel and bladder and using the formula: BMI = weight (kg)/ height (m)2.
- Blood tests: Participants will undergo phlebotomy, after an overnight fast, for complete metabolic panel (including liver function tests), complete blood count, protime, lipid panel, free fatty acids, serum insulin, hemoglobin A1C, fasting glucose, hepatitis B surface antigen, hepatitis C antibody, prothrombin time and HIV. 30ml of blood will be collected: including 5ml of serum banking, 5ml of plasma banking, 5ml of DNA banking, and 15ml for planned labs as listed above. Plasma will be stored for adipocytokines and testing of novel genes or biomarkers for NALFD in later studies. Fasting plasma glucose and plasma insulin levels will be obtained. Insulin resistance will be measured by HOMA-IR, the homeostasis assessment model of insulin resistance, where HOMA-IR (mmol/L x µU/ml) = fasting glucose (mmol/L) x fasting insulin (µU/ml)/22.5). The participants will be required to provide a stool and urine sample as well.
- A urine pregnancy test will be performed for all women of childbearing age. Women who have had hysterectomies are excluded from pregnancy testing. If the pregnancy test is positive, the patient will not be enrolled in the study.
- The patient will undergo magnetic resonance imaging for hepatic fat fraction.
Undersøgelsestype
Observationel
Tilmelding (Forventet)
500
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Archana Bhatt
- Telefonnummer: 619-471-3915
- E-mail: abhatt@ucsd.edu
Studiesteder
-
-
California
-
San Diego, California, Forenede Stater, 92103
- Rekruttering
- University of California, San Diego
-
Kontakt:
- Archana R Bhatt
- Telefonnummer: 619-471-3915
- E-mail: abhatt@ucsd.edu
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 100 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Twins and first degree relatives (sibling-sibling or offspring-parent).
Beskrivelse
Inclusion Criteria:
- Subjects must be at least 18 years of age
- The subject is willing and able to complete all procedures and observations specified in the protocol
- The subject has been fully informed and has personally signed and dated the written Informed Consent/Assent and Health Insurance Portability and Accountability Act (HIPAA) provisions.
Exclusion Criteria:
- The subject is a female who is pregnant or nursing.
Contraindications to MRI:
- The subject has any contraindication to MR imaging, such as patients with pacemakers, metallic cardiac valves, magnetic material such as surgical clips, implanted electronic infusion pumps or other conditions that would preclude proximity to a strong magnetic field.
- The subject has a history of extreme claustrophobia.
- The subject cannot fit inside the MR scanner cavity
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Rohit Loomba, UCSD
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Hjælpsomme links
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. august 2011
Primær færdiggørelse (Forventet)
1. august 2021
Studieafslutning (Forventet)
1. august 2021
Datoer for studieregistrering
Først indsendt
16. juli 2012
Først indsendt, der opfyldte QC-kriterier
17. juli 2012
Først opslået (Skøn)
18. juli 2012
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
6. maj 2021
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
3. maj 2021
Sidst verificeret
1. maj 2021
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 111282
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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