Continuous Glucose Monitoring to Measure Effect of Glycemic Index
2. oktober 2015 opdateret af: W. Kenneth Ward, Legacy Health System
The Effect of Glycemic Index on Post-prandial Glycemia (Breakfast vs. Lunch) in Patients With Type 1 Diabetes: Quantification With Continuous Glucose Monitoring
Background: Post-prandial hyperglycemia is common in people with type 1 diabetes.
Objective: The aim was to determine the impact of low vs high glycemic index (GI) on post-prandial glycemia for breakfast vs lunch and to quantify these effects with continuous glucose monitoring.
Design: Seven adult subjects with type 1 diabetes participated in two experiments, each consisting of two meals each. In one experiment, both meals had a low GI; in the other, high GI. Meals were given 195 minutes apart and were matched for carbohydrate, protein, and fat content. Each subject received his usual pre-prandial insulin dosage, followed by a continuous subcutaneous basal insulin infusion for the remainder of the experiment. Arterialized venous glucose was analyzed every 15 minutes and sensor glucose was recorded every 5 minutes.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
A total of 14 diet studies (each with two meals) were completed in three men and four women.
All subjects completed two diet studies in which two meals were served 195 minutes apart.
On one study day, two high GI (> 75) meals were given, and on the other study day, two low GI (< 30) meals were given.
The low GI and high GI meals were matched for amount of carbohydrates, protein, and fat based on a weight-maintaining diet for each subject.
The order of the study treatment (high or low GI) was randomized.
Subjects were not informed as the GI of any meal.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
7
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
Oregon
-
Portland, Oregon, Forenede Stater, 97232
- Legacy Health System--Holladay Park Campus
-
-
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
- Barn
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- clinical diagnosis of type 1 diabetes mellitus
- patients on insulin pump therapy
Exclusion Criteria:Any patient who was
- pregnancy
- cardiovascular, cerebrovascular, kidney, or liver disease
- uncontrolled chronic medical conditions
- oral or parenteral corticosteroid use
- immunosuppressant use
- visual or physical impairments that impede the use of a continuous glucose monitoring device
- insulin or glucagon allergy
- hypoglycemia unawareness
- requirement of greater than 200 units of insulin per day
- gastroparesis
- any prior gastric surgery
- an allergy to any food items served.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Støttende pleje
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: low glycemic index effect on post-prandial peak
Seven adult subjects with type 1 diabetes participated in two experiments, each consisting of two meals each.
In one experiment, both meals had a low Glycemic Index.
|
A Dexcom Seven® Plus Continuous Glucose Monitoring sensor was inserted subcutaneously into each subject.
|
|
Aktiv komparator: high glycemic index effect on post-prandial peak
Seven adult subjects with type 1 diabetes participated in two experiments, each consisting of two meals each.
In one experiment, both meals had a high Glycemic Index.
|
A Dexcom Seven® Plus Continuous Glucose Monitoring sensor was inserted subcutaneously into each subject.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Mean Area Under the Curve for Rise in Breakfast Post-prandial.
Tidsramme: Mean area under the curve was calculated at 0, 15min, 30 min, 45 min, 60min, 75 min, 90 min, 105 min, 120min, 135min, 150min, 165min and 180 min after breakfast
|
Arterialized blood glucose was monitored at 15 minute intervals and sensed glucose was recorded at five minute intervals.
Mean area under the curve was calculated over the 3 hour period after breakfast for both the high and low glycemic breakfast meals.
|
Mean area under the curve was calculated at 0, 15min, 30 min, 45 min, 60min, 75 min, 90 min, 105 min, 120min, 135min, 150min, 165min and 180 min after breakfast
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: W K Ward, MD, Legacy Health System
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. april 2009
Primær færdiggørelse (Faktiske)
1. oktober 2009
Studieafslutning (Faktiske)
1. oktober 2009
Datoer for studieregistrering
Først indsendt
15. juni 2010
Først indsendt, der opfyldte QC-kriterier
15. juni 2010
Først opslået (Skøn)
16. juni 2010
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
23. oktober 2015
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
2. oktober 2015
Sidst verificeret
1. oktober 2015
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- kw01
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