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Non-Invasive Hepatic and Metabolic Index Changes After Incretin Therapy in Overweight/Obesity (GLP-NIT)

2026년 7월 13일 업데이트: Ayse N Erbakan, Goztepe Prof Dr Suleyman Yalcın City Hospital

Early Changes in Non-Invasive Hepatic and Metabolic Indices After Incretin-Based Therapy in Patients With Overweight or Obesity: Real-World Evidence From a Turkish Cohort

This single-center, retrospective observational cohort study evaluated early changes in non-invasive hepatic and metabolic indices (FIB-4, APRI, HSI, and the triglyceride-glucose [TyG] index) in adults with overweight or obesity who received once-weekly subcutaneous semaglutide or tirzepatide for metabolic risk reduction related to metabolic dysfunction-associated steatotic liver disease (MASLD). Baseline and follow-up (minimum 12 weeks) clinical, anthropometric, and laboratory data from 154 patients treated at a single tertiary-care center in Turkey were analyzed. The study assessed whether short-term incretin-based therapy was associated with changes in fibrosis-related indices (FIB-4, APRI) versus steatosis- and insulin resistance-related indices (HSI, TyG), and identified independent predictors of these changes using multivariable linear regression.

연구 개요

상세 설명

Adults aged 18 years or older with overweight or obesity who were considered at increased metabolic risk for MASLD and who received continuous subcutaneous semaglutide or tirzepatide for at least 12 weeks were retrospectively identified at the internal medicine clinic of a tertiary-care state hospital in Istanbul, Turkey. Patients with significant alcohol consumption, other chronic liver disease etiologies, prior bariatric surgery, recent initiation/dose change of MASLD-relevant medications, concurrent hepatotoxic agent use, or missing baseline/follow-up data were excluded.

Baseline values were defined as the most recent measurements within 4 weeks before treatment initiation; follow-up values were the earliest measurements obtained after at least 12 continuous weeks of therapy. FIB-4, APRI, HSI, and TyG were calculated at both time points. Wilcoxon signed-rank tests compared baseline-to-follow-up changes. Kendall's tau assessed exploratory correlations among change scores; Spearman's rho assessed two prespecified correlations (percentage body-weight change vs. index changes; ΔHbA1c vs. index changes in the diabetic subgroup). Multivariable linear regression (enter method) identified independent predictors of ΔFIB-4, ΔAPRI, ΔHSI, and ΔTyG, adjusting for baseline index value, weight change, follow-up duration, baseline HbA1c, sex, and age.

Agent choice (semaglutide vs. tirzepatide) and dose titration were at the discretion of the treating physician; patients receiving either agent were analyzed together as a drug class, without dose-based stratification, since the study's aim was to characterize the class-level early index response rather than compare individual agents.

연구 유형

관찰

등록 (실제)

154

연락처 및 위치

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연구 장소

      • Istanbul, 터키 (Türkiye)
        • Facility: Istanbul Medeniyet University, Göztepe Prof. Dr. Süleyman Yalçın City Hospital

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

아니

샘플링 방법

비확률 샘플

연구 인구

Adults with overweight or obesity at increased metabolic risk for MASLD, treated with subcutaneous semaglutide or tirzepatide for at least 12 weeks at a single tertiary-care internal medicine clinic in Turkey; both medications were self-funded (out-of-pocket), as they are not covered by the national health insurance system.

설명

Inclusion Criteria:

  • Adults aged 18 years or older
  • Overweight (BMI 25.0-29.9 kg/m²) or obesity (BMI ≥30.0 kg/m²)
  • Considered at increased metabolic risk for MASLD (overweight/obesity plus ≥1 additional cardiometabolic risk factor)
  • Continuous treatment with subcutaneous semaglutide or tirzepatide for at least 12 weeks

Exclusion Criteria:

  • Significant alcohol consumption (>30 g/day for men; >20 g/day for women)
  • Chronic liver disease of other etiology (viral hepatitis, autoimmune hepatitis, hemochromatosis, Wilson's disease)
  • Prior bariatric surgery
  • Initiation or dose modification of pioglitazone, SGLT-2 inhibitors, or high-dose vitamin E within 3 months before baseline
  • Concurrent use of known hepatotoxic agents (e.g., amiodarone, methotrexate)
  • Missing clinical, anthropometric, or laboratory data at baseline or follow-up

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

코호트 및 개입

그룹/코호트
개입 / 치료
Semaglutide
Adults with overweight or obesity at increased metabolic risk for MASLD who received continuous once-weekly subcutaneous semaglutide for at least 12 weeks (n=81). Dose titration was at the treating physician's discretion.
Once-weekly subcutaneous GLP-1 receptor agonist administered for at least 12 weeks; dose individualized and titrated at the treating physician's discretion according to routine clinical practice and patient tolerability.
다른 이름들:
  • Ozempic; Wegovy
Tirzepatide
Adults with overweight or obesity at increased metabolic risk for MASLD who received continuous once-weekly subcutaneous tirzepatide for at least 12 weeks (n=73). Dose titration was at the treating physician's discretion.
Once-weekly subcutaneous dual GIP/GLP-1 receptor agonist administered for at least 12 weeks; dose individualized and titrated at the treating physician's discretion according to routine clinical practice and patient tolerability.
다른 이름들:
  • Mounjaro; Zepbound

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Change in Fibrosis-4 Index (FIB-4)
기간: Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
FIB-4 = (Age × AST) / (Platelet count × √ALT), calculated at baseline and after ≥12 weeks of therapy.
Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
Change in AST-to-Platelet Ratio Index (APRI)
기간: Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
APRI = (AST / 40 U/L ULN) / Platelet count × 100, calculated at baseline and after ≥12 weeks of therapy.
Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
Change in Hepatic Steatosis Index (HSI)
기간: Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
HSI = 8 × (ALT/AST) + BMI + 2 (if type 2 diabetes) + 2 (if female), calculated at baseline and after ≥12 weeks of therapy.
Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
Change in Triglyceride-Glucose (TyG) Index
기간: Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)
yG = ln[fasting triglycerides (mg/dL) × fasting plasma glucose (mg/dL) / 2], calculated at baseline and after ≥12 weeks of therapy.
Baseline and follow-up (median 23.7 weeks; minimum 12 weeks)

2차 결과 측정

결과 측정
측정값 설명
기간
Change in Liver Enzymes
기간: Baseline and follow-up (median 23.7 weeks)
AST, ALT, and GGT levels (U/L).
Baseline and follow-up (median 23.7 weeks)
Change in Lipid Profile
기간: Baseline and follow-up (median 23.7 weeks)
Total cholesterol, HDL-C, LDL-C, and triglycerides (mg/dL)
Baseline and follow-up (median 23.7 weeks)
Change in Fasting Plasma Glucose
기간: Baseline and follow-up (median 23.7 weeks)
Fasting plasma glucose (mg/dL)
Baseline and follow-up (median 23.7 weeks)
Change in Body Weight
기간: Baseline and follow-up (median 23.7 weeks)
Body weight (kilograms).
Baseline and follow-up (median 23.7 weeks)
Change in Glycated Hemoglobin (HbA1c)
기간: Baseline and follow-up (median 23.7 weeks)
HbA1c (percentage of total hemoglobin, %).
Baseline and follow-up (median 23.7 weeks)
Change in Body Mass Index (BMI)
기간: Baseline and follow-up (median 23.7 weeks)
BMI (kg/m^2), calculated from body weight and height.
Baseline and follow-up (median 23.7 weeks)
Change in Waist-to-Height Ratio
기간: Baseline and follow-up (median 23.7 weeks)
Waist-to-height ratio (unitless ratio: waist circumference [cm] / height [cm]).
Baseline and follow-up (median 23.7 weeks)

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 수석 연구원: Ozgur Bahadir, MD, Istanbul Medeniyet University, Faculty of Medicine, Department of Gastroenterology
  • 연구 책임자: Ayse N Erbakan, MD,PhD, Istanbul Medeniyet University, Faculty of Medicine, Department of Internal Medicine

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2024년 1월 1일

기본 완료 (실제)

2026년 3월 30일

연구 완료 (실제)

2026년 4월 15일

연구 등록 날짜

최초 제출

2026년 7월 7일

QC 기준을 충족하는 최초 제출

2026년 7월 7일

처음 게시됨 (실제)

2026년 7월 14일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 7월 15일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 7월 13일

마지막으로 확인됨

2026년 7월 1일

추가 정보

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개별 참가자 데이터(IPD) 계획

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아니요

IPD 계획 설명

Data available from the corresponding author upon reasonable request

약물 및 장치 정보, 연구 문서

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아니

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Semaglutide에 대한 임상 시험

구독하다