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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 uppdaterad av: 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.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Faktisk)

31

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Förenta staterna
    • Connecticut
      • New Haven, Connecticut, Förenta staterna, 06520
        • Yale University School of Medicine
      • New Haven, Connecticut, Förenta staterna, 06519-1362
        • Yale New Haven Hospital

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 65 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Diagnostisk
  • Tilldelning: Icke-randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Lean Healthy Control
(BMI <25 kg/m2)
Enhet: 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.
Andra namn:
  • DEXCOM G4 Platinum
Beteende: 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
Aktiv komparator: Obese non-diabetic subject
BMI > 30 kg/m2
Enhet: 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.
Andra namn:
  • DEXCOM G4 Platinum
Beteende: 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

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Rate of Changing Glucose Level
Tidsram: 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
Tidsram: 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
Tidsram: 3-5 days
The CGM sensor measures the glucose levels from the interstitial tissue. Presented is the glucose nadir (mg/dl).
3-5 days

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Difference in Glucose Peak and Nadir
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Yale University

Samarbetspartners

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

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 februari 2016

Primärt slutförande (Faktisk)

14 december 2017

Avslutad studie (Faktisk)

14 december 2017

Studieregistreringsdatum

Först inskickad

1 februari 2016

Först inskickad som uppfyllde QC-kriterierna

2 februari 2016

Första postat (Uppskatta)

3 februari 2016

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

5 maj 2022

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

8 april 2022

Senast verifierad

1 april 2022

Mer information

Termer relaterade till denna studie

Nyckelord

Andra studie-ID-nummer

  • 1503015469
  • 1K23DK098286-01A1 (U.S.S. NIH-anslag/kontrakt)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

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