- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01440790
The Effect of Continuous Sipping of a Glucose Solution on Markers of Oxidation in Men and Women (AOGI)
11. mars 2013 oppdatert av: Thomas Wolever, University of Toronto
The objective of this study is to determine the effect of reducing the rate of glucose absorption on oxidative stress after eating and to compare it with the effects of vitamin C. The hypothesis is that reducing the rate of glucose absorption will reduce oxidative stress to a similar extent as 1g vitamin C.
Studieoversikt
Status
Fullført
Forhold
Detaljert beskrivelse
Recently, much attention has been paid to evidence that abnormalities of the postprandial state (hyperglycemia) are important contributing factors to the development of chronic disease.
This attention has increased interest in the role low glycemic index (GI) foods could potentially play in preventing postprandial oxidative burst/stress.
GI is a means by which to categorize carbohydrate according to their postprandial glycemic response.
Low GI foods promote slow intestinal absorption, prolonged and less pronounced postprandial glycemia, may decrease risk of chronic disease, as well as provide metabolic benefit to people living with glucose abnormalities as well as those with normal glucose.
Few studies have been conducted looking at the potential relationship between GI and oxidation and are limited by dietary/lifestyle confounders.
The proposed study has been developed to eliminate these confounders.
Hypotheses (3): 1. Sipping glucose slowly over 3h will result in less oxidative stress than ingesting the same amount of glucose as a bolus over 5min.
2. Sipping glucose will reduce oxidative stress to the same extent as 1g of oral vitamin C. 3. The effect of sipping glucose on oxidative stress will occur sooner than that of vitamin C.
Studietype
Intervensjonell
Registrering (Faktiske)
18
Fase
- Ikke aktuelt
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år til 75 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- healthy males or females
- 18 to 75 years
Exclusion Criteria:
- diabetes
- recent hospitalization
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: Randomisert
- Intervensjonsmodell: Crossover-oppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
---|---|
Placebo komparator: Glucose bolus alone
50g glucose dissolved in water and consumed within 5 minutes.
|
50g anhydrous glucose dissolved in 300ml water consumed within 10min followed by a lunch (cheese sandwich, fruit and milk) at 4h.
|
Eksperimentell: Glucose sipping alone
50g glucose dissolved in water and consumed gradually over 3 hours.
|
50g anhydrous glucose dissolved in 300ml water consumed at rate of 25ml per 15min followed by a lunch (cheese sandwich, fruit and milk) at 4h.
|
Aktiv komparator: Glucose bolus plus 1g vitamin C
50g glucose dissolved in water and consumed in 5 minutes with 1g vitamin C
|
50g anhydrous glucose dissolved in 300ml water consumed within 10min with 1g vitamin C followed by a lunch (cheese sandwich, fruit and milk) at 4h.
|
Eksperimentell: Glucose sipping plus 1g vitamin C
50g glucose dissolved in water and consumed gradually of 3 hours.
In addition 1g vitamin C will be taken with the first mouthful of glucose solution.
|
50g anhydrous glucose dissolved in 300ml water consumed at rate of 25ml per 15min.
1g vitamin C taken with first 25ml.
Followed by a lunch (cheese sandwich, fruit and milk) at 4h.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Incremental Area Under the Curve over 4 hours in serum TRAP (total peroxyl radical-trapping potential)
Tidsramme: Four (4) hours after starting to eat the test meal.
|
Four (4) hours after starting to eat the test meal.
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
Change over 6 hours from baseline in Plasma glucose
Tidsramme: Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Change over 6 hours from baseline in Plasma insulin
Tidsramme: Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Change over 6 hours from baseline in Plasma free-fatty acids
Tidsramme: Baseline and hourly for 6h
|
Baseline and hourly for 6h
|
Change over 6 hours from baseline in Serum vitamin C
Tidsramme: Baseline and 2, 4 and 6h
|
Baseline and 2, 4 and 6h
|
Change over 6 hours from baseline in C-reactive protein
Tidsramme: Baseline and 2, 4 and 6h
|
Baseline and 2, 4 and 6h
|
Change over 6 hours from baseline in Blood pressure
Tidsramme: Baseline and 1, 2, 4, 5 and 6h
|
Baseline and 1, 2, 4, 5 and 6h
|
Change over 6 hours from baseline in Pulse
Tidsramme: Baseline and 1, 2, 4, 5 and 6h
|
Baseline and 1, 2, 4, 5 and 6h
|
Change over 6 hours from baseline in Pulse pressure
Tidsramme: Baseline and 1, 2, 4, 5 and 6h
|
Baseline and 1, 2, 4, 5 and 6h
|
Change over 6 hours from baseline in Augmentation index
Tidsramme: Baseline and 1, 2, 4, 5 and 6h
|
Baseline and 1, 2, 4, 5 and 6h
|
Change over 6 hours from baseline in Oxidized LDL
Tidsramme: Baseline and hourly for 6hr
|
Baseline and hourly for 6hr
|
Change from baseline in serum TRAP over 6 hours
Tidsramme: Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Baseline and 30, 60, 120, 180, 240, 270, 300 and 360min
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Thomas MS Wolever, BMBCh PhD DM, University of Toronto
- Studieleder: Shannan Grant, MSc, RD, University of Toronto
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. august 2010
Primær fullføring (Faktiske)
1. juni 2011
Studiet fullført (Faktiske)
1. juni 2011
Datoer for studieregistrering
Først innsendt
3. august 2011
Først innsendt som oppfylte QC-kriteriene
23. september 2011
Først lagt ut (Anslag)
27. september 2011
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
12. mars 2013
Siste oppdatering sendt inn som oppfylte QC-kriteriene
11. mars 2013
Sist bekreftet
1. mars 2013
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 25401TW
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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