A to Z Study Follow-up: Collection of DNA Data From Buccal Swabs
19. marts 2009 opdateret af: Interleukin Genetics, Inc.
The goal of this study is to determine the association between genotypes and diet.
The weight and weight loss data are already available from the previously completed study called: A to Z Study - Benefits and Risks of Alternative Weight Loss Strategies - A Clinical Trial, which was performed from 2003-2005 at Stanford University.
In the present study, Interleukin Genetics will obtain DNA samples from the previously enrolled study subjects to investigate genetic influence of the response to macronutrient compositions of low caloric diets to weight loss.
Studieoversigt
Status
Ukendt
Detaljeret beskrivelse
Interleukin Genetics has derived, through an extensive search of the scientific literature, a genetic test panel in the area of Weight Management (WM), which includes the genes that have been shown to affect body weight.
These genes have been associated with elevated risk for obesity.
Undersøgelsestype
Observationel
Tilmelding (Forventet)
150
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
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California
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Stanford, California, Forenede Stater, 94305-5401
- Stanford University
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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
25 år til 50 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Kvinde
Prøveudtagningsmetode
Sandsynlighedsprøve
Studiebefolkning
The study population for the A to Z study are premenopausal women who are overweight (BMI 27-40 kg/m2) but in otherwise good general health.
Overweight participants with potentially confounding health conditions are excluded (eg., hypertension, diabetes, heart disease, cancer).
Children were not included in this study.
The participants were asked to agree to a random assignment to dietary plans.
Beskrivelse
Inclusion Criteria:
- BMI (body mass index): 27-40 kg/m2
- Gender: Women only
- Age: 25-50
- Menopausal status: pre-menopausal
- Weight stable for last 2-months
- Not on a weight loss plan
- No ethnic restrictions
- No plans to move from the area over the next 6-months
- Willing to accept random assignment
- Possess English speaking and reading skills to understand and complete forms such as informed consent and study evaluation
Exclusion Criteria:
- Hypertension
- Diabetes (type 1 or 2) or history of gestational diabetes
- Heart disease diagnosis
- Renal or lever disease
- Active neoplasms
- Pregnant, lactating, within 6-months of birth, or planning to become pregnant in the next 6-months
- Hyperthyroidism, unless treated and under control
- Medications known to affect weight / energy expenditure
- Excessive alcohol intake (self-reported, > 3 drinks/day)
- Postmenopausal, including surgical menopause
- Currently under psychiatric care, or severely clinically depressed (>17 on Beck Inventory)
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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1
Previously enrolled subjects in the "Benefits and Risks of Alternative Weight Loss Strategies - a Clinical Trial", which was run at Stanford 2003-2005.
(A to Z Study)
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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The PRIMARY objective of this study is to identify genotype-diet interaction on weight, body fat, and BMI.
Tidsramme: 1 year
|
1 year
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
The SECONDARY objective is to explore the association of single nucleotide polymorphisms (SNPs) with other metabolic parameters, such as blood lipid profile, insulin level, and other cardiovascular risk factors.
Tidsramme: 1 year
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1 year
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
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 2008
Primær færdiggørelse (Forventet)
1. juni 2009
Studieafslutning (Forventet)
1. september 2009
Datoer for studieregistrering
Først indsendt
19. marts 2009
Først indsendt, der opfyldte QC-kriterier
19. marts 2009
Først opslået (Skøn)
20. marts 2009
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
20. marts 2009
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
19. marts 2009
Sidst verificeret
1. marts 2009
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- ILI-08-108WMGTP
- 14895
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 .