A Short-Term Appetite Suppression Trial Using Appethyl™: The Pizza (Pizza)

The purpose of the study is to determine whether Appethyl™, made from spinach, will reduce appetite and hunger given on the same day of testing.

Study Overview

• Status: Completed
• Conditions: Obesity; Overweight
• Intervention / Treatment: Dietary supplement: Appethyl™; Other: Placebo

Detailed Description

Four hours after breakfast a small amount of liquid to drink will be given to a participant that will contain either the Appethyl™ or placebo. Participants will be given a lunch of about 750 calories and 40% fat prepared by the Metabolic Kitchen and be asked to eat all of it. Participants will have food choice testing performed 4 hours after starting their lunch meal. This will be done in two ways. Participants will be given a list of two foods that are made of carbohydrate like bread and pretzels and be asked which is most preferred. Participants will also be given a list of foods that differ in the amounts of fat, carbohydrate and protein that they contain and will be asked to mark the ones that appeal to them.

Participants will be presented with a pizza in a quantity more than they could reasonably be expected to eat 5 hours after the start of their lunch meal and be asked to eat to their satisfaction over 30 minutes. Participants are not expected to eat all of the pizza.

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Louisiana
    • Baton Rouge, Louisiana, United States, 70808
      • Pennington Biomedical Research Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years to 61 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• You are a male or female aged 18 to 65 years.
• You have a BMI (a number calculated from your height and weight) between 25-35 kg/m2, inclusive.
• Your waist circumference is over 35 inches.

Exclusion Criteria:

• You have been on a diet for weight loss in the last 2 months.
• You are being treated for blood pressure, diabetes, heart disease, rheumatoid arthritis, or blood vessel disease.
• You have a psychotic illness.
• You have other chronic diseases like an inflammatory bowel disease such as Crohn's disease or ulcerative colitis.
• You have a dysfunction of your gastrointestinal tract.
• You have food allergies.
• You have rheumatoid arthritis with inflammation.
• You have chronic constipation.
• You are taking any products to lose weight such as medication for obesity or non-prescription medications for weight loss.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Appethyl™, then Placebo; Participants receive Appethyl™ liquid once four hours after breakfast. After a washout period of at least one week, they received the placebo drink once four hours after breakfast.	Dietary supplement: Appethyl™; Four hours after breakfast participants will be given a small amount of liquid to drink that will contain Appethyl™. They will not know which they are getting and it will be decided randomly, like flipping a coin. Participants will be presented with a pizza in a quantity more than they could reasonably be expected to eat 5 hours after the start of their lunch meal and be asked to eat to their satisfaction over 30 minutes. Participants are not expected to eat all of the pizza.; Other: Placebo; Four hours after breakfast, participants will be given a small amount of liquid to drink that will contain a placebo (inactive liquid). Participants will not know which they are getting and it will be decided randomly, like flipping a coin. Participants will be presented with a pizza in a quantity more than they could reasonably be expected to eat 5 hours after the start of their lunch meal and be asked to eat to their satisfaction over 30 minutes. They are not expected to eat all of the pizza.
Placebo Comparator: Placebo, then Appethyl™; Participants receive the placebo drink once four hours after breakfast. After a washout period of at least one week, they received Appethyl™ liquid once four hours after breakfast.	Dietary supplement: Appethyl™; Four hours after breakfast participants will be given a small amount of liquid to drink that will contain Appethyl™. They will not know which they are getting and it will be decided randomly, like flipping a coin. Participants will be presented with a pizza in a quantity more than they could reasonably be expected to eat 5 hours after the start of their lunch meal and be asked to eat to their satisfaction over 30 minutes. Participants are not expected to eat all of the pizza.; Other: Placebo; Four hours after breakfast, participants will be given a small amount of liquid to drink that will contain a placebo (inactive liquid). Participants will not know which they are getting and it will be decided randomly, like flipping a coin. Participants will be presented with a pizza in a quantity more than they could reasonably be expected to eat 5 hours after the start of their lunch meal and be asked to eat to their satisfaction over 30 minutes. They are not expected to eat all of the pizza.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Difference in Pizza Consumed During Two Meals	Four hours after breakfast administration of Appethyl™ or placebo(inactive liquid) is given. You will be presented with a standard lunch and then (5 hours after lunch) pizza in a quantity of more than you could reasonably be expected to eat 5 hours after the start of your lunch meal and be asked to eat to your satisfaction over 30 minutes. You are not expected to eat all of the pizza.	5 hours after lunch (9 hours after administration of Appethyl from the morning)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Evaluation of Appetite	The Visual Analogue scale allows you to mark a vertical line across the horizontal scale on how hungry you are or not. The Visual Analogue scale was used to evaluate hunger, fullness, longing for food, prospective intake, satisfaction, desire for salty food, desire for savory food, thirst, and desire for sweet food. The scale ranged from 0 to 100mm; the higher values indicated greater outcomes.	30 minutes, 60 minutes, 120 minutes after consuming the drug or placebo
Evaluation of Satiety by Means of Visual Analogue Scale	The Visual Analogue scale allows you to mark a vertical line across the horizontal scale on how hungry you are or not. The Visual Analogue scale was used to evaluate hunger, fullness, longing for food, prospective intake, satisfaction, desire for salty food, desire for savory food, thirst, and desire for sweet food. The scale ranged from 0 to 100mm; the higher values indicated greater outcomes.	30 minutes, 60 minutes, 120 minutes after consuming the drug or placebo

Collaborators and Investigators

• Sponsor: Pennington Biomedical Research Center
• Collaborators: Greenleaf Medical
• Investigators: Principal Investigator: Frank Greenway, MD, Pennington Biomedical Research Center

Study record dates

Study Major Dates

• Study Start: July 1, 2013
• Primary Completion (Actual): December 1, 2015
• Study Completion (Actual): December 1, 2015

Study Registration Dates

• First Submitted: August 2, 2013
• First Submitted That Met QC Criteria: August 6, 2013
• First Posted (Estimate): August 9, 2013

Study Record Updates

• Last Update Posted (Actual): August 28, 2019
• Last Update Submitted That Met QC Criteria: August 17, 2019
• Last Verified: August 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Body Weight; Overweight
• Other Study ID Numbers: PBRC 13022