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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)

2026年8月11日 更新者：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.

調査の概要

状態

まだ募集していません

条件

介入・治療

詳細な説明

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.

研究の種類

介入

入学 (推定)

29

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • インドネシア
    • Central Java
      • Banyumas、Central Java、インドネシア、53122
        • Integrated Health Science Building, Faculty of Health Sciences
        • コンタクト：

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人

健康ボランティアの受け入れ

いいえ

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

  • 主な目的：処理
  • 割り当て：なし
  • 介入モデル：単一グループの割り当て
  • マスキング：なし（オープンラベル）

武器と介入

参加者グループ / アーム
介入・治療
実験的：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).
行動：Low-Energy High-Protein Diet

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.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in Body Weight
時間枠：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

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Body Mass Index (BMI)
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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

その他の成果指標

結果測定
メジャーの説明
時間枠
Change in Fasting Serum Triglycerides
時間枠：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
時間枠：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
時間枠：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
時間枠：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)
時間枠：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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Gadjah Mada University

協力者

Universitas Jenderal Soedirman
Faculty of Medicine, Gadjah Mada University

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年9月1日

一次修了 (推定)

2026年12月31日

研究の完了 (推定)

2027年1月31日

試験登録日

最初に提出

2026年8月7日

QC基準を満たした最初の提出物

2026年8月7日

最初の投稿 (実際)

2026年8月12日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月13日

QC基準を満たした最後の更新が送信されました

2026年8月11日

最終確認日

2026年8月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • 092/KEPK/PE/VII/2026 (その他の識別子：Health Research Ethics Committee, Faculty of Medicine, Universitas Jenderal Soedirman)
  • 202406210804017 (その他の助成金/資金番号：Indonesia Endowment Fund for Education Agency (LPDP RI))
  • 548/UN1/FKKMK.3/S3KK.3/PJ/2026 (その他の識別子：Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Public Health, and Nursing UGM)

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

IPD プランの説明

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.

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米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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