Effects of Diet Selection Based on Genetic Screening on Success to a Weight Loss Program (Curves3)
Primary Purpose
Diet Modification
Status
Completed
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
Positive CIQ plus High Carbohydrate Diet
Positive CIQ plus High Protein Diet
Negative CIQ plus High Carbohydrate Diet
Negative CIQ plus High Protein Diet
Sponsored by

About this trial
This is an interventional health services research trial for Diet Modification
Eligibility Criteria
Inclusion Criteria:
- The participant is an apparently healthy female
- The participant is between the ages of 18 and 60
Exclusion Criteria:
- The participant is pregnant or nursing, or plans to become pregnant during the next 12 months or has been pregnant in the past 12 months
- The participant has uncontrolled metabolic disorder including known electrolyte abnormalities; heart disease, arrhythmias, diabetes, thyroid disease, or hypogonadism; a history of hypertension, hepatorenal, musculoskeletal, autoimmune, or neurological disease
- The participant is currently taking thyroid, hyperlipidemic, hypoglycemic, anti-hypertensive, or androgenic medications
- The participant has taken ergogenic levels of nutritional supplements that may affect muscle mass (e.g., creatine, HMB), anabolic/catabolic hormone levels (androstenedione, DHEA, etc.) or weight loss (e.g., ephedra, thermogenics, etc.) within the past three months
- The participant is willing to take participate in a regular moderate exercise program
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm Type
Active Comparator
Active Comparator
Active Comparator
Active Comparator
Arm Label
Positive CIQ plus High Carbohydrate Diet
Positive CIQ plus High Protein Diet
Negative CIQ plus High Carbohydrate Diet
Negative CIQ plus High Protein Diet
Arm Description
Positive Carbohydrate Intolerance Questionnaire (CIQ) plus 30% carbohydrate, 45% protein, 25% fat diet
Positive Carbohydrate Intolerance Questionnaire (CIQ) plus 20% carbohydrate, 45% protein, 35% fat diet
Negative Carbohydrate Intolerance Questionnaire (CIQ) plus 30% carbohydrate, 45% protein, 25% fat diet
Negative Carbohydrate Intolerance Questionnaire (CIQ) plus 20% carbohydrate, 45% protein, 35% fat diet
Outcomes
Primary Outcome Measures
Effects of diet selection on physical activity patterns changes (steps per day)
Effects of diet selection on body weight changes (pounds)
Effects of diet selection on hip/waist ratio changes (inches)
Effects of diet selection on Resting Energy Expenditure (REE) changes (calories per day)
Effects of diet selection on Blood Pressure (BP) changes (mmHG)
Effects of diet selection on Heart Rate (HR) changes (beats per minute)
Effects of diet selection on body composition (DXA) changes (percent fat mass)
Effects of diet selection on Bioelectrical Impedance Analysis (BIA) changes (flow impedance)
Effects of diet selection on a chemistry-15 blood panel changes
Effects of diet selection on a cell blood count (CBC) blood panel changes
Effects of diet selection on lipid panel changes
Secondary Outcome Measures
Effects of diet selection on maximal cardiopulmonary capacity changes (ml/kg/min)
Effects of diet selection on muscular strength through a 1 repetition maximum (1 RM) test
Effects of diet selection on muscular endurance through a maximal repetition test
Effects of diet selection on gene expression changes
Effects of diet selection on DNA methylation changes
Full Information
NCT ID
NCT03116711
First Posted
March 29, 2017
Last Updated
April 11, 2017
Sponsor
Texas A&M University
Collaborators
Curves International
1. Study Identification
Unique Protocol Identification Number
NCT03116711
Brief Title
Effects of Diet Selection Based on Genetic Screening on Success to a Weight Loss Program
Acronym
Curves3
Official Title
Effects of Diet Type Selection Based on Response to a Carbohydrate Intolerance Questionnaire and Genetic Screening on Success to a Weight Loss and Exercise Program
Study Type
Interventional
2. Study Status
Record Verification Date
March 2017
Overall Recruitment Status
Completed
Study Start Date
November 1, 2013 (Actual)
Primary Completion Date
July 1, 2015 (Actual)
Study Completion Date
July 1, 2015 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Texas A&M University
Collaborators
Curves International
4. Oversight
Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
The purpose of this study is to determine the effects of diet type selection based on response to a Carbohydrate Intolerance Questionnaire (CIQ) and genetic screening on success to a weight loss and exercise program.
Detailed Description
The purpose of this study is to determine if stratification of individuals based on responses to a Carbohydrate Intolerance Questionnaire (CIQ), genetic screening, and/or DNA methylation affects weight loss success and/or health outcomes of women following the Curves moderate carbohydrate, high protein, low fat diet (30% carbohydrate, 45% protein, 25% fat) or the Curves carbohydrate restricted, high protein, moderate fat diet (20% carbohydrate, 45% protein, 35% fat).
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diet Modification
7. Study Design
Primary Purpose
Health Services Research
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
51 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Positive CIQ plus High Carbohydrate Diet
Arm Type
Active Comparator
Arm Description
Positive Carbohydrate Intolerance Questionnaire (CIQ) plus 30% carbohydrate, 45% protein, 25% fat diet
Arm Title
Positive CIQ plus High Protein Diet
Arm Type
Active Comparator
Arm Description
Positive Carbohydrate Intolerance Questionnaire (CIQ) plus 20% carbohydrate, 45% protein, 35% fat diet
Arm Title
Negative CIQ plus High Carbohydrate Diet
Arm Type
Active Comparator
Arm Description
Negative Carbohydrate Intolerance Questionnaire (CIQ) plus 30% carbohydrate, 45% protein, 25% fat diet
Arm Title
Negative CIQ plus High Protein Diet
Arm Type
Active Comparator
Arm Description
Negative Carbohydrate Intolerance Questionnaire (CIQ) plus 20% carbohydrate, 45% protein, 35% fat diet
Intervention Type
Other
Intervention Name(s)
Positive CIQ plus High Carbohydrate Diet
Intervention Description
Positive Carbohydrate Intolerance Questionnaire plus High Carbohydrate Diet
Intervention Type
Other
Intervention Name(s)
Positive CIQ plus High Protein Diet
Intervention Description
Positive Carbohydrate Intolerance Questionnaire plus High Protein Diet
Intervention Type
Other
Intervention Name(s)
Negative CIQ plus High Carbohydrate Diet
Intervention Description
Negative Carbohydrate Intolerance Questionnaire plus High Carbohydrate Diet
Intervention Type
Other
Intervention Name(s)
Negative CIQ plus High Protein Diet
Intervention Description
Negative Carbohydrate Intolerance Questionnaire plus High Protein Diet
Primary Outcome Measure Information:
Title
Effects of diet selection on physical activity patterns changes (steps per day)
Time Frame
24 weeks
Title
Effects of diet selection on body weight changes (pounds)
Time Frame
24 weeks
Title
Effects of diet selection on hip/waist ratio changes (inches)
Time Frame
24 weeks
Title
Effects of diet selection on Resting Energy Expenditure (REE) changes (calories per day)
Time Frame
24 weeks
Title
Effects of diet selection on Blood Pressure (BP) changes (mmHG)
Time Frame
24 weeks
Title
Effects of diet selection on Heart Rate (HR) changes (beats per minute)
Time Frame
24 weeks
Title
Effects of diet selection on body composition (DXA) changes (percent fat mass)
Time Frame
24 weeks
Title
Effects of diet selection on Bioelectrical Impedance Analysis (BIA) changes (flow impedance)
Time Frame
24 weeks
Title
Effects of diet selection on a chemistry-15 blood panel changes
Time Frame
24 weeks
Title
Effects of diet selection on a cell blood count (CBC) blood panel changes
Time Frame
24 weeks
Title
Effects of diet selection on lipid panel changes
Time Frame
24 weeks
Secondary Outcome Measure Information:
Title
Effects of diet selection on maximal cardiopulmonary capacity changes (ml/kg/min)
Time Frame
24 weeks
Title
Effects of diet selection on muscular strength through a 1 repetition maximum (1 RM) test
Time Frame
24 weeks
Title
Effects of diet selection on muscular endurance through a maximal repetition test
Time Frame
24 weeks
Title
Effects of diet selection on gene expression changes
Time Frame
24 weeks
Title
Effects of diet selection on DNA methylation changes
Time Frame
24 weeks
10. Eligibility
Sex
Female
Gender Based
Yes
Gender Eligibility Description
The eligibility criteria were at the request of the study sponsor.
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
60 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria:
The participant is an apparently healthy female
The participant is between the ages of 18 and 60
Exclusion Criteria:
The participant is pregnant or nursing, or plans to become pregnant during the next 12 months or has been pregnant in the past 12 months
The participant has uncontrolled metabolic disorder including known electrolyte abnormalities; heart disease, arrhythmias, diabetes, thyroid disease, or hypogonadism; a history of hypertension, hepatorenal, musculoskeletal, autoimmune, or neurological disease
The participant is currently taking thyroid, hyperlipidemic, hypoglycemic, anti-hypertensive, or androgenic medications
The participant has taken ergogenic levels of nutritional supplements that may affect muscle mass (e.g., creatine, HMB), anabolic/catabolic hormone levels (androstenedione, DHEA, etc.) or weight loss (e.g., ephedra, thermogenics, etc.) within the past three months
The participant is willing to take participate in a regular moderate exercise program
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Richard B Kreider, PhD
Organizational Affiliation
Texas A&M University
Official's Role
Principal Investigator
12. IPD Sharing Statement
Plan to Share IPD
No
Learn more about this trial
Effects of Diet Selection Based on Genetic Screening on Success to a Weight Loss Program
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