- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02257593
Developmental Adaptation to an Obesogenic Environment
Developmental Contribution to Macronutrient Selection and Appetite Control in Adult Survivors of Kwashiorkor and Marasmus
Study Overview
Detailed Description
Differences in birth weight between children with kwashiorkor (K) and marasmus (M) suggest that intrauterine factors influence the development of these two syndromes of severe acute malnutrition (SAM). Such an effect could play a role in setting specific targets for dietary protein that has been proposed to influence total energy intake (TEI), body weight and risk of obesity.
We recruited 63 adult survivors of SAM, aged 17 to 46 years, who in childhood had been treated at the Tropical Metabolism Research Unit (TMRU) Metabolic Ward. Data on birth weight, age, weight and length at admission were abstracted from TMRU records. Subjects provided written informed consent. The study was approved by the Faculty of Medical Sciences Ethics Committee, University of the West Indies.
Measurements were conducted in two phases. All subjects were seen in single-sex pairs and stayed in a dedicated metabolic suite for 9 consecutive days. During phase 1 (days 1 to 3- choice experiment) they ate freely at each mealtime from menus comprising a combination of foods containing different percentages of energy as protein (PEP), set at 10%, 15% or 25% (26). During phase 2 (days 4 to 8), pairs were randomized to one of three groups each of which received only foods that contained 10%, 15% or 25% PEP. The participants were blinded to the treatment. Participants were taken for a 1-hour supervised walk each day at 4 pm.
Thirty-one local recipes of 10 sweet and 21 savoury foods were selected. Each was modified into three recipes containing 10, 15 or 25% energy as protein through the addition of food ingredients, a protein mix and/or maltodextrin (Ross Nutrition). Carbohydrate was adjusted to be 60, 55 or 45% energy and dietary fat was kept constant at 30%. The PEP versions of each food/recipe were taste tested for the ability to determine the protein concentration of any dish due to appearance, smell or texture as well as for pleasantness. If taste testers were able to detect any difference, the recipes were adjusted and retested until no difference was detected. Up to 11 foods were provided on each day during the 8-day period, giving participants both variety and choice at all times as indicated in table 1. During the first three days (phase 1), three food items other than fruit and vegetable salads and tea were offered at breakfast, lunch and dinner to all the participants. These three food items at each of these meal times included foods containing 10%, 15% or 25% protein energy. From days 4 to 8 (phase 2), these same daily food types were repeated every three days but the foods contained 10 PEP in one group, in another group they all contained 15 PEP, and in the third group they all contained 25 PEP protein.
Breakfast was provided at 8 am, lunch at 12:30 pm and dinner at 6 pm. During both phases snack items were made freely available at all times. The amount eaten was determined by weighing each food item before consumption and any not eaten to the nearest gram. The foods were served in weighed quantities on tared containers. Plates were of a single design and neutral (white) color. The same size, style and color plates were used for the 10, 15 and 25 PEP version of each food. Participants were offered optional foods including 100g fruit salad, and decaffeinated tea sweetened with a measured amount of brown sugar with breakfast, and 100g vegetable salad with lunch and dinner. A three-day food diary completed prior to the 8 day ad libitum test period and foods consumed during the test period were analysed for total energy, protein, carbohydrate and fat content.
The weight of the subjects without shoes and in light clothing was measured daily to the nearest 0.1 kg; height was measured to the nearest 0.1 cm. Fat and fat-free mass were obtained from DEXA measurements. Weight gain was calculated from day 1 to 4 in phase 1 and from day 4 to 8 in phase 2.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adults who were treated for severe childhood malnutrition at the Tropical Metabolism Research Unit
Exclusion Criteria:
- Diabetes, hypertension, pregnancy,
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 10 % Protein
10% Dietary protein energy
|
Persons were fed Participants were randomized to one of three arms, each of which received 10%, 15% or 25% of total energy derived from protein
Other Names:
|
Experimental: 15% Protein
15% Dietary protein energy
|
Persons were fed Participants were randomized to one of three arms, each of which received 10%, 15% or 25% of total energy derived from protein
Other Names:
|
Experimental: 25% Protein
25% Dietary protein energy
|
Persons were fed Participants were randomized to one of three arms, each of which received 10%, 15% or 25% of total energy derived from protein
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Energy intake (Protein leverage)
Time Frame: 5 days
|
Total energy intake when placed on 10, 15 or 25% protein energy diet
|
5 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Weight change
Time Frame: 5 days
|
over 5 days of consuming diets containing either 10, 15 or 25% protein energy
|
5 days
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Protein intake (protein target)
Time Frame: 3 days
|
protein intake when participants ate freely from menus comprising a combination of foods containing 10, 15 and 25% protein energy
|
3 days
|
Collaborators and Investigators
Collaborators
Investigators
- Study Director: Terrence G Forrester, MBBS, PhD, University of the West Indies, mona
- Principal Investigator: David Raubenheimer, PhD, University of Aukland
- Principal Investigator: Claudia P Campbell, PhD, University of the West Indies, mona
Publications and helpful links
General Publications
- Gosby AK, Soares-Wynter S, Campbell C, Badaloo A, Antonelli M, Hall RM, Martinez-Cordero C, Jebb SA, Brand-Miller J, Caterson ID, Conigrave AD, Forrester TG, Raubenheimer D, Simpson SJ. Design and testing of foods differing in protein to energy ratios. Appetite. 2010 Oct;55(2):367-70. doi: 10.1016/j.appet.2010.06.009. Epub 2010 Jun 19.
- Forrester TE, Badaloo AV, Boyne MS, Osmond C, Thompson D, Green C, Taylor-Bryan C, Barnett A, Soares-Wynter S, Hanson MA, Beedle AS, Gluckman PD. Prenatal factors contribute to the emergence of kwashiorkor or marasmus in severe undernutrition: evidence for the predictive adaptation model. PLoS One. 2012;7(4):e35907. doi: 10.1371/journal.pone.0035907. Epub 2012 Apr 30.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- ECP 71, 2008/2009
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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