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

13. juli 2026 oppdatert av: 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.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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.

Studietype

Observasjonsmessig

Registrering (Faktiske)

154

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

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.

Beskrivelse

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
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.
Legemiddel: Semaglutide
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.
Andre navn:
  • 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.
Legemiddel: Tirzepatide
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.
Andre navn:
  • Mounjaro; Zepbound

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Fibrosis-4 Index (FIB-4)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Liver Enzymes
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: Baseline and follow-up (median 23.7 weeks)
Body weight (kilograms).
Baseline and follow-up (median 23.7 weeks)
Change in Glycated Hemoglobin (HbA1c)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Goztepe Prof Dr Suleyman Yalcın City Hospital

Etterforskere

  • Hovedetterforsker: Ozgur Bahadir, MD, Istanbul Medeniyet University, Faculty of Medicine, Department of Gastroenterology
  • Studieleder: Ayse N Erbakan, MD,PhD, Istanbul Medeniyet University, Faculty of Medicine, Department of Internal Medicine

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. januar 2024

Primær fullføring (Faktiske)

30. mars 2026

Studiet fullført (Faktiske)

15. april 2026

Datoer for studieregistrering

Først innsendt

7. juli 2026

Først innsendt som oppfylte QC-kriteriene

7. juli 2026

Først lagt ut (Faktiske)

14. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

13. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • GLP-NIT

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

Data available from the corresponding author upon reasonable request

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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