Development of a Genetic Score as a Response Modifier for Changes in Weight, Body Composition, and Biochemical Parameters in Obese Adults Undergoing a Low-Energy High-Protein Diet Intervention (Gens-HiPro)
The goal of this clinical trial is to evaluate whether a genetic score (Gens-HiPro) acts as a response modifier for weight loss, body composition changes, and biochemical parameters in obese adults undergoing a low-energy high-protein diet intervention.
The main questions it aims to answer is:
Does the genetic score (Gens-HiPro) modify responses to changes in weight, body composition, and biochemical parameters following a 12-week low-energy high-protein diet?
Participants will:
- Undergo initial screening to determine eligibility based on inclusion and exclusion criteria
- Complete baseline data measurement, including demographic data, anthropometric measurements (weight, BMI, body composition), biochemical blood analysis (total cholesterol, triglycerides, HDL, LDL, CRP), dietary assessment.
- Attend a small-group educational session on general guidelines, portion control, plate model ("Isi Piringku"), and food weighing techniques for a low-energy high-protein diet.
- Receive a 60-90 minute nutritional counseling session led by a dietitian at the start of intervention
- Follow the prescribed 12-week low-energy high-protein diet, supported by an active messaging channel on weekdays for daily dietary consultations
- Participate in at least three in-person monitoring and evaluation visits scheduled every 3-4 weeks (at weeks 4, 8, and 12 or weeks 4, 7, 10 and 12)
- Complete post-intervention evaluations at the end of week 12, repeating all baseline anthropometric, biochemical, and dietary assessments.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Yovita Puri Subardjo, S.Gz., Dietisien, MPH
- Telefonnummer: +628174100488
- E-mail: yovitapurisubardjo@mail.ugm.ac.id
Studiesteder
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Central Java
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Banyumas, Central Java, Indonesien, 53122
- Integrated Health Science Building, Faculty of Health Sciences
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Kontakt:
- Adendita Azmi Afiattami, S.Gz
- Telefonnummer: +6285117481147
- E-mail: adendita.azmi@unsoed.ac.id
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Adult males or females aged 18 - 40 years.
- Classified as obese with a Body Mass Index (BMI) of 27 - 35 kg/m² and a waist circumference of ≥90 cm for men and ≥80 cm for women.
- Willing to adhere to the prescribed low-energy high-protein diet.
- Willing to undergo anthropometric measurements, body composition analysis, lipid profile testing, and genetic variation screening.
- Signed the written informed consent form.
Exclusion Criteria:
- Having chronic diseases that affect metabolism or body weight.
- Diagnosed with chronic kidney disease (CKD).
- Currently pregnant, lactating, or planning a pregnancy during the study period.
- Currently participating in an intensive weight loss program or receiving pharmacological therapy for weight loss within the last 3 months.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: low-energy high-protein diet intervention
Participants in this single-arm study will undergo a 12-week low-energy high-protein diet intervention (personalized nutritional counseling by a dietitian).
|
This intervention consists of a 12-week low-energy high-protein diet program delivered through structured behavioral and nutritional counseling. Nutrition care process: individual nutritional counseling, one-on-one counseling session conducted by a registered dietitian. The dietary regimen is prescribed with an energy deficit of 500-750 kcal/day, ensuring a minimum daily energy intake of 1.200 kcal/day for women and 1.500 kcal/day for men. Macronutrient distribution is targeted at 1.2-1.6 g/kg adjusted body weight for protein, 20-30% of total energy for fat, and 45-55% of total energy for carbohydrates. Genetic profiling using the Gens-HiPro score is conducted to evaluate its role as a modifier of outcome responses in weight loss, body composition, and biochemical parameters. |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Body Weight
Tidsramme: 12 weeks
|
Body weight refers to the total body mass of the subject, measured using a weighing scale in kilograms (kg).
The change in body weight is calculated as the difference between the body weight value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Body Mass Index (BMI)
Tidsramme: 12 weeks
|
Body Mass Index is the ratio of the subject's body weight in kilograms divided by the square of their height in meters (kg/m²).
The change in BMI is calculated as the difference between the BMI value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
|
Change in Fat Mass
Tidsramme: 12 weeks
|
Fat mass is the total amount of fat present in the subject's body, measured using Bioelectrical Impedance Analysis (BIA).
The change in fat mass is calculated as the difference between the fat mass value in kg at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
|
Change in Muscle Mass
Tidsramme: 12 weeks
|
Muscle mass refers to the total amount of muscle (skeletal muscle mass) in the subject's body, measured using Bioelectrical Impedance Analysis (BIA).
The change in muscle mass is calculated as the difference between the muscle mass value in kg at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
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Change in Visceral Fat
Tidsramme: 12 weeks
|
isceral fat is the fat stored within the abdominal cavity that surrounds the subject's internal organs, measured using Bioelectrical Impedance Analysis (BIA).
The change in visceral fat mass is calculated as the difference between the visceral fat mass value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
|
Change in Waist Circumference
Tidsramme: 12 weeks
|
Waist circumference is a simple physical measurement taken using a measuring tape (metline) around the abdomen to estimate central obesity, reported in centimeters (cm).
The change in waist circumference is calculated as the difference between the waist circumference value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Fasting Serum Triglycerides
Tidsramme: 12 weeks
|
Triglycerides refer to triacylglycerol molecules, measured via biochemical analysis of blood after a minimum 8-hour fast and reported in mg/dL.
The change in triglyceride values is calculated as the difference between the triglyceride value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
|
Change in Fasting Serum High-Density Lipoprotein (HDL) Cholesterol
Tidsramme: 12 weeks
|
HDL refers to small plasma lipoprotein particles, measured via biochemical analysis of blood after a minimum 8-hour fast and reported in mg/dL.
The change in HDL values is calculated as the difference between the HDL value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
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Change in Fasting Serum Low-Density Lipoprotein (LDL) Cholesterol
Tidsramme: 12 weeks
|
LDL refers to low-density plasma lipoprotein particles, measured via biochemical analysis of blood after a minimum 8-hour fast and reported in mg/dL.
The change in LDL values is calculated as the difference between the LDL value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Note: Fixed a typo in your original text which stated "nilai HDL pada awal intervensi").
(Scale: Ratio)
|
12 weeks
|
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Change in Fasting Serum Total Cholesterol
Tidsramme: 12 weeks
|
Total cholesterol is the concentration of all cholesterol contained within the lipoproteins circulating in the blood, measured enzymatically in serum/plasma and reported in mg/dL.
The change in total cholesterol values is calculated as the difference between the total cholesterol value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
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Change in High-Sensitivity C-Reactive Protein (hs-CRP)
Tidsramme: 12 weeks
|
CRP is the measured concentration of an acute-phase protein produced by the liver in response to inflammatory cytokines, measured using a standard hs-CRP assay and reported in mg/dL.
The change in CRP values is calculated as the difference between the CRP value at the baseline of the intervention (Week 0) and the end of the intervention (Week 12).
(Scale: Ratio)
|
12 weeks
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 092/KEPK/PE/VII/2026 (Anden identifikator: Health Research Ethics Committee, Faculty of Medicine, Universitas Jenderal Soedirman)
- 202406210804017 (Andet bevillings-/finansieringsnummer: Indonesia Endowment Fund for Education Agency (LPDP RI))
- 548/UN1/FKKMK.3/S3KK.3/PJ/2026 (Anden identifikator: Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Public Health, and Nursing UGM)
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IPD-planbeskrivelse
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