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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)

11 agosto 2026 aggiornato da: Yovita Puri Subardjo, Gadjah Mada University

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.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Subjects will be stratified or analyzed based on their genetic profile using the Gens-HiPro score to evaluate gene-diet interactions on weight loss outcomes. Gens-HiPro Genetic Score: A genetic risk score calculated as the sum of the products of each selected single nucleotide variant's (SNV) allele score and its respective effect size (mean difference [MD] in weight loss between allele groups). The selected genetic variants were screened and identified through a systematic review and meta-analysis, including: APOA1 rs670, CB2R/CNR2 rs3123554, FTO rs1421085, FTO rs9939609, MC4R rs17782313, and MTNR1B rs10830963. An allele score of 0 is assigned if a specific genetic variant falls into the genotype group with a smaller mean difference in weight loss. An allele score of 1 is assigned if the variant falls into the genotype group with a larger mean difference. The effect size represents the mean difference in weight loss, calculated by subtracting the mean weight loss of the genotype group with the smaller MD from the mean weight loss of the genotype group with the larger MD.

Tipo di studio

Interventistico

Iscrizione (Stimato)

29

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

    • Central Java
      • Banyumas, Central Java, Indonesia, 53122
        • Integrated Health Science Building, Faculty of Health Sciences
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto

Accetta volontari sani

No

Descrizione

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.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 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.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Body Weight
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Body Mass Index (BMI)
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Change in Visceral Fat
Lasso di tempo: 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
Lasso di tempo: 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

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Fasting Serum Triglycerides
Lasso di tempo: 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
Lasso di tempo: 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
Change in Fasting Serum Low-Density Lipoprotein (LDL) Cholesterol
Lasso di tempo: 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
Change in Fasting Serum Total Cholesterol
Lasso di tempo: 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
Change in High-Sensitivity C-Reactive Protein (hs-CRP)
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 settembre 2026

Completamento primario (Stimato)

31 dicembre 2026

Completamento dello studio (Stimato)

31 gennaio 2027

Date di iscrizione allo studio

Primo inviato

7 agosto 2026

Primo inviato che soddisfa i criteri di controllo qualità

7 agosto 2026

Primo Inserito (Effettivo)

12 agosto 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

13 agosto 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

11 agosto 2026

Ultimo verificato

1 agosto 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 092/KEPK/PE/VII/2026 (Altro identificatore: Health Research Ethics Committee, Faculty of Medicine, Universitas Jenderal Soedirman)
  • 202406210804017 (Altro numero di sovvenzione/finanziamento: Indonesia Endowment Fund for Education Agency (LPDP RI))
  • 548/UN1/FKKMK.3/S3KK.3/PJ/2026 (Altro identificatore: Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Public Health, and Nursing UGM)

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Individual participant data will not be shared to protect patient privacy and confidentiality, in accordance with the informed consent signed by the participants and the restrictions set by the Institutional Review Board (IRB) / Ethics Committee.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .