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Investigation Into the Effects of Blood Glucose Levels Upon Eating Behavior in Lean and Obese Non-diabetic and Diabetic Subjects

8 april 2022 bijgewerkt door: Yale University
To investigate whether the daily glucose profiles as assessed by continuous glucose monitoring for 1 week of normal weight and obese individuals relate to hunger levels and food intake.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

To evaluate the effect of blood glucose levels on eating behavior in a population of patients with diabetes in a free-living environment; the investigators plan to study lean healthy control subjects (BMI <25 kg/m2) and obese non-diabetic subjects (BMI > 30 kg/m2).

The participants who qualify will be invited to use the CGMS (DEXCOM G4 Platinum) for up to 7 days. On the visit for placement of the CGMS: 1) the participants will be explained by one of the study physicians how to use a glucometer (FreeStyle or Accu-Check), 2) they will have the CGMS inserted under the skin, and 3) they will be instructed how to fill up the food log (informational brochures are available at the end of the protocol. On the second visit (up to 7 days after the initial visit) the CGMS will be removed from the skin and the glucose meter and food log will be returned to the investigators.

When this study was initially designed, it incorporated 2 additional arms in the study: T1DM and obese T2DM patients. These patients were never recruited for the study.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

31

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Connecticut
      • New Haven, Connecticut, Verenigde Staten, 06520
        • Yale University School Of Medicine
      • New Haven, Connecticut, Verenigde Staten, 06519-1362
        • Yale New Haven Hospital

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 65 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • A1c < 10.5 %

Exclusion Criteria:

  • BMI <18 (no upper limit),
  • Creatinine > 1.5 mg/dL,
  • Hgb < 10 mg/dL,
  • ALT > 2.5 X ULN,
  • untreated thyroid disease,
  • uncontrolled hypertension,
  • known neurological disorders,
  • untreated psychiatric disorders,
  • use of antidepressants and psychiatric medications,
  • use of weight loss medications in the 6 months prior to the study,
  • malignancy,
  • smoking,
  • current or recent steroid use in last 3 months,
  • history of current illicit drug use;
  • for women: pregnancy, or breastfeeding.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Diagnostisch
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Lean Healthy Control
(BMI <25 kg/m2)
Apparaat: Continuous Glucose Monitoring System (CGMS)
The CGMS consists of 3 parts: sensor, transmitter and monitor. The small sensor measures the glucose levels from the interstitial tissue. The transmitter is attached on top of the sensor and connects wirelessly to the monitor. The sensor is sterile and comes in an unopened package. It has a plastic wire-like tip that is placed under the skin and continuously measures the glucose levels. One of the study physicians will insert the CGMS wire-like tip under the volunteer's skin with the use of the DEXCOM sensor insertion kit. The transmitter is snapped to the sensor pod and the sensor/transmitter unit will be attached to the skin with an adhesive patch. The monitor is the size of a small hand-held device with a digital screen that displays a graph showing the glucose levels from the previous 4-24 hours.
Andere namen:
  • DEXCOM G4 Platinum
Gedragsmatig: Food log
The Food Record will ask about amount and type of food consumed throughout the day. The participants will also register how hungry they are before the meal and how full they feel after they ate, and type and duration of physical activity
Actieve vergelijker: Obese non-diabetic subject
BMI > 30 kg/m2
Apparaat: Continuous Glucose Monitoring System (CGMS)
The CGMS consists of 3 parts: sensor, transmitter and monitor. The small sensor measures the glucose levels from the interstitial tissue. The transmitter is attached on top of the sensor and connects wirelessly to the monitor. The sensor is sterile and comes in an unopened package. It has a plastic wire-like tip that is placed under the skin and continuously measures the glucose levels. One of the study physicians will insert the CGMS wire-like tip under the volunteer's skin with the use of the DEXCOM sensor insertion kit. The transmitter is snapped to the sensor pod and the sensor/transmitter unit will be attached to the skin with an adhesive patch. The monitor is the size of a small hand-held device with a digital screen that displays a graph showing the glucose levels from the previous 4-24 hours.
Andere namen:
  • DEXCOM G4 Platinum
Gedragsmatig: Food log
The Food Record will ask about amount and type of food consumed throughout the day. The participants will also register how hungry they are before the meal and how full they feel after they ate, and type and duration of physical activity

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Rate of Changing Glucose Level
Tijdsspanne: 3-5 days
The CGM sensor measures the glucose levels from the interstitial tissue. Presented is the rate of changing glucose level (mg/dl/min).
3-5 days
Glucose Peak
Tijdsspanne: 3-5 days
The CGM sensor measures the glucose levels from the interstitial tissue. Presented is the glucose peak (mg/dl).
3-5 days
Glucose Nadir
Tijdsspanne: 3-5 days
The CGM sensor measures the glucose levels from the interstitial tissue. Presented is the glucose nadir (mg/dl).
3-5 days

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Difference in Glucose Peak and Nadir
Tijdsspanne: 3-5 days
The CGM sensor measures the glucose levels from the interstitial tissue. Presented is the difference in glucose peak and nadir (mg/dl).
3-5 days
Average Daily Hunger Rating
Tijdsspanne: 3-5 days
Average daily hunger was measured using a self-report scale. Hunger is measured on a scale from 1-10. 10 is the most hungry, 1 is the least hungry.
3-5 days
Nutirion Intake: Energy
Tijdsspanne: 3-5 days
Data were collected through food journals. Energy and macronutrient composition were calculated from self-reported food records based on Nutrition Data System for Research (NDS-R). Presented is the average daily energy intake (kcal/day).
3-5 days
Nutirion Intake: Carbohydrate
Tijdsspanne: 3-5 days
Data were collected through food journals. Energy and macronutrient composition were calculated from self-reported food records based on Nutrition Data System for Research (NDS-R). Presented is the average daily carbohydrate intake (g/day).
3-5 days
Nutirion Intake: Fat
Tijdsspanne: 3-5 days
Data were collected through food journals. Energy and macronutrient composition were calculated from self-reported food records based on Nutrition Data System for Research (NDS-R). Presented is the average daily fat intake (g/day).
3-5 days
Nutirion Intake: Protein
Tijdsspanne: 3-5 days
Data were collected through food journals. Energy and macronutrient composition were calculated from self-reported food records based on Nutrition Data System for Research (NDS-R). Presented is the average daily protein intake (g/day).
3-5 days

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Yale University

Medewerkers

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Onderzoekers

  • Hoofdonderzoeker: Renata Belfort De Aguiar, MD, PhD, Yale School of Medicine

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 februari 2016

Primaire voltooiing (Werkelijk)

14 december 2017

Studie voltooiing (Werkelijk)

14 december 2017

Studieregistratiedata

Eerst ingediend

1 februari 2016

Eerst ingediend dat voldeed aan de QC-criteria

2 februari 2016

Eerst geplaatst (Schatting)

3 februari 2016

Updates van studierecords

Laatste update geplaatst (Werkelijk)

5 mei 2022

Laatste update ingediend die voldeed aan QC-criteria

8 april 2022

Laatst geverifieerd

1 april 2022

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • 1503015469
  • 1K23DK098286-01A1 (Subsidie/contract van de Amerikaanse NIH)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

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Klinische onderzoeken op Suikerziekte

Klinische onderzoeken op Continuous Glucose Monitoring System (CGMS)

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