- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07572513
Slowly Digestible Carbohydrates for GLP-1 Secretion
The goal of this clinical trail is to learn if the hormone, glucagon-like peptide-1 (GLP-1), is stimulated by slowly digestible carbohydrates (SDCs) in healthy adults. In the current study, researchers will observe the amount of SDC that results in clinically meaningful levels of GLP-1, shown by an increase in feelings of fullness and a decrease in hunger, and how long an elevated level of GLP-1 lasts after starch consumption. Researchers aim to address two questions: What amount of SDC maximizes GLP-1-mediated satiety, and does the impact to satiety continue in a second meal? The overall goal is to maximize ileal-digesting SDC's potential use as a food-based agent for weight loss.
Researchers will compare 20, 40, and 60 g of raw corn starch compared to a maltodextrin control on total plasma GLP-1 concentrations, insulin, and blood glucose at baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of SDC. Researchers will also measure satiety at baseline, 60, 120, 180 minutes and after a second meal.
There will be a total of 4 study visits with a least a 7-day break between visits. At each study visit, participants will:
- Consume a randomized test beverage (SDC or maltodextrin)
- Receive a blood draw at 7 timepoints over 3 hrs
- Take a satiety questionnaire 5 times over 3 hrs
- Consume a standardized lunch 3 hrs after the test beverage consumption
Studienübersicht
Status
Intervention / Behandlung
Studientyp
Einschreibung (Geschätzt)
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
- Name: Bruce R Hamaker, Ph.D.
- Telefonnummer: 765-494-5668
- E-Mail: hamakerb@purdue.edu
Studieren Sie die Kontaktsicherung
- Name: Erica de Jong, B.s.
- Telefonnummer: 7654963802
- E-Mail: dejonge@purdue.edu
Studienorte
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Indiana
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West Lafayette, Indiana, Vereinigte Staaten, 47907
- Rekrutierung
- Clinical Research Center at Purdue University
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Kontakt:
- Cheryl Armstrong, Ph.D.
- Telefonnummer: 765-496-6275
- E-Mail: armstroc@purdue.edu
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Healthy population
- BMI between 18.5 and 24.9 kg/m2
- Adults 18 - 45 years old
- Men or women
- Able to read/speak English
- Fasting blood glucose levels ≤100 mg/dL
- HbA1c ≤ 5.7%
Exclusion Criteria:
- Participants with 18 > Years of Age > 45 will be excluded.
- Subjects with 18.5 kg/m² > BMI > 24.9 kg/m² will be excluded.
- Diabetic individuals will be excluded.
- Individuals with history of gastrointestinal disease will be excluded from the study.
- Pregnant or nursing women will also be excluded.
- Individuals taking GLP-1 medications, or on weight-loss diets or restrictive eating patterns.
- Individuals suffering from dairy or gluten intolerance or allergies will be excluded.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Zufällig
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Doppelt
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Placebo-Komparator: Maltodextrin
Maltodextrin increases GLP-1 from 0-60 minutes but doesn't have an extended or elevated plasma GLP-1 into 2-3 hrs post-consumption.
Participants will consume a treatment that is either entirely maltodextrin or partially maltodextrin during each of the 4 study visits.
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75 g of maltodextrin diluted in 200 mL of water, taken once at a study visit
Andere Namen:
|
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Experimental: Low-Dose SDC
20 g of raw corn starch (SDC) + 55g of maltodextrin = 75 g total Researchers hypothesize that raw corn starch will have an extended or elevated plasma GLP-1 into 2-3 hrs post-consumption.
Participants will consume the low-dose once during one of the study visits.
|
75 g of maltodextrin diluted in 200 mL of water, taken once at a study visit
Andere Namen:
Quantity of raw corn starch will vary between low, medium, and high-dose treatment arms (20, 40, 60 g respectively).
Each treatment will total 75 g using maltodextrin to account for mass difference (55, 35, 15 g respectively).
Andere Namen:
|
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Experimental: Medium-Dose SDC
40 g of raw corn starch (SDC) + 35g of maltodextrin = 75 g total Researchers hypothesize that raw corn starch will have an extended or elevated plasma GLP-1 into 2-3 hrs post-consumption.
Participants will consume the medium-dose once during one of the study visits.
|
75 g of maltodextrin diluted in 200 mL of water, taken once at a study visit
Andere Namen:
Quantity of raw corn starch will vary between low, medium, and high-dose treatment arms (20, 40, 60 g respectively).
Each treatment will total 75 g using maltodextrin to account for mass difference (55, 35, 15 g respectively).
Andere Namen:
|
|
Experimental: High-Dose SDC
60 g of raw corn starch (SDC) + 15g of maltodextrin = 75 g total Researchers hypothesize that raw corn starch will have an extended or elevated plasma GLP-1 into 2-3 hrs post-consumption.
Participants will consume the high-dose once during one of the study visits.
|
75 g of maltodextrin diluted in 200 mL of water, taken once at a study visit
Andere Namen:
Quantity of raw corn starch will vary between low, medium, and high-dose treatment arms (20, 40, 60 g respectively).
Each treatment will total 75 g using maltodextrin to account for mass difference (55, 35, 15 g respectively).
Andere Namen:
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Total GLP-1 Secretion
Zeitfenster: From baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of treatment for each participant over the course of the 4 arms.
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To determine the impact of 20, 40, 60 g of SDC compared to a maltodextrin control on total plasma GLP-1 concentrations at baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of SDC.
Assessed via spun blood plasma and ELISA Total GLP-1 Kits.
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From baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of treatment for each participant over the course of the 4 arms.
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Satiety
Zeitfenster: From baseline, 60, 120, 180 minutes and after a second meal for each participant over the course of the 4 arms.
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Measure satiety at baseline, 60, 120, 180 minutes and after a second meal via satiety questionnaires
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From baseline, 60, 120, 180 minutes and after a second meal for each participant over the course of the 4 arms.
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Blood Glucose
Zeitfenster: From baseline, and 15, 30, 60, 90, 120, and 180 minutes post-consumption for each participant over the course of the 4 arms
|
To determine the impact of 20, 40, 60 g of SDC compared to a maltodextrin control on total plasma glucose concentrations at baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of SDC.
Assessed via spun blood serum.
|
From baseline, and 15, 30, 60, 90, 120, and 180 minutes post-consumption for each participant over the course of the 4 arms
|
|
Insulin
Zeitfenster: From baseline, and 15, 30, 60, 90, 120, and 180 minutes post-consumption for each participant over the course of the 4 arms
|
To determine the impact of 20, 40, 60 g of SDC compared to a maltodextrin control on insulin concentrations at baseline and 15, 30, 60, 90, 120, and 180 minutes post-consumption of SDC.
Assessed via spun blood plasma.
|
From baseline, and 15, 30, 60, 90, 120, and 180 minutes post-consumption for each participant over the course of the 4 arms
|
Mitarbeiter und Ermittler
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- IRB-2025-00000283
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