T-helper 2 (Th2) Cytokine Responses in Overweight/Obese Subjects
11. marts 2014 opdateret af: David Skoner, MD, West Penn Allegheny Health System
Th2 Cytokine Responses in Overweight/Obese Subjects
Cytokines are chemicals that are naturally made by your body.
Certain cytokine levels are changed in the blood of patients who develop allergies and/or asthma.
Cytokine levels may also be changed in some individuals who are overweight or obese.
The purpose of this study is to determine if certain cytokine levels differ based on a person's weight and whether or not they have allergies or asthma.
Information gathered in this study will be compared to information gathered from subjects who have participated in another similar study for patients who have allergies and/or asthma.
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
The aims of this study are to:
- Characterize the relationship between BMI and Th2 skewing in non-atopic adult subjects.
- Compare these results to those previously obtained from atopic adult subjects It is expected that the results of this study will demonstrate enhanced Th2 skewing in overweight and obese atopic subjects as compared to non-atopic subjects. It is further anticipated that the results of this study will be used as preliminary data to generate an NIH grant application exploring the link between obesity and atopy.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
46
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Pennsylvania
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Pittsburgh, Pennsylvania, Forenede Stater, 15212
- Allegheny General Hospital, Dept. of Allergy, Asthma, & Immunology
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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 50 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Subjects will be male or female, aged 18-50 years, and of any race.
Subjects must be healthy with no history of allergies or asthma.
Subjects will be placed in one of three groups based on their BMI: normal, overweight, or obese.
Beskrivelse
Inclusion Criteria:
- adults aged 18 to 50 years
- pre-bronchodilator FEV1 > 80% predicted with no evidence of reversibility following administration of bronchodilator
- no history of allergies
Exclusion Criteria:
- medical history consistent with atopy and/or asthma
- any positive response to allergy skin testing for inhalant allergens (defined as a wheal > 3 mm larger than the negative control)
- a pre-bronchodilator FEV1 < 80% predicted
- > 12% reversibility in FEV1 following administration of a bronchodilator
- any history of significant chronic illness
- history of respiratory infection within the past 2 weeks
- any use of prescription medications other than oral contraceptives or thyroid hormone replacement within the past 2 months
- use of any investigational medication within the past month
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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Normal BMI
Subjects with a BMI range of 18.5 to 24.9 which is defined by the CDC as within normal range.
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Overweight BMI
Subjects with a BMI of 25.0 to 29.9 are defined by the CDC as being overweight.
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Obese BMI
Subjects with a BMI of 30.0 and above are defined by the CDC as being obese.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Th2 Cytokine levels
Tidsramme: Baseline (only visit)
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Baseline (only visit)
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: David Skoner, MD, Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
- Studieleder: Deborah Gentile, MD, Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
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. maj 2009
Primær færdiggørelse (Faktiske)
1. december 2010
Datoer for studieregistrering
Først indsendt
28. maj 2009
Først indsendt, der opfyldte QC-kriterier
11. marts 2014
Først opslået (Skøn)
13. marts 2014
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
13. marts 2014
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
11. marts 2014
Sidst verificeret
1. marts 2014
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- RC# 4729
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 .