The primary aim is to establish the safety, efficacy and mechanism of action of lanifibranor in patients with type 2 diabetes (T2DM) and nonalcoholic fatty liver disease (NAFLD). Specifically, to determine if lanifibranor decreases intrahepatic triglycerides (IHTG) (primary endpoint), improves hepatic insulin sensitivity, endogenous (hepatic) glucose production, de novo lipogenesis (DNL), HbA1c and lipid profiles. In addition, exploratory analysis with surrogate plasma biomarkers and imaging on liver fibrosis changes on with treatment will be performed.
The study is a two-arm (placebo, lanifibranor 800 mg/day), randomized (1:1), double-blind, placebo-controlled, 24-week treatment study. Thirty four (n=34)patients with T2DM will be randomized, allowing for a 10% drop-out rate. The diagnosis of NAFLD on imaging will be done by measuring IHTG using the gold-standard magnetic resonance and spectroscopy (¹H-MRS) technique. Ten non-diabetic subjects without NAFLD will also serve as a control group for the metabolic and imaging procedures. The study will last 34-36 weeks (\~6-8 weeks for run-in, 24 weeks of treatment and 4 weeks post-study follow-up), with an estimated recruitment period of \~9 months. Patients with uncontrolled T2DM and a diagnosis of "fatty liver" per history (elevated AST/ALT and/or liver fat on liver ultrasound or ¹H-MRS and/or other appropriate imaging technique - see below). Participants may be treated by diet only, or be on a stable dose of metformin and/or a sulfonylurea and/or a DPP-IV inhibitor for ≥ 2 months prior to enrollment. If the HbA1c is ≤8.0% on any of these diabetes medications, the dose of these medications will be kept stable throughout the study and baseline studies performed as outlined below. If the HbA1c is \> 8.0% but ≤ 9.5%, metformin (minimum dose required: 1,000 mg/day for metformin) and/or a sulfonylurea (minimum dose required: glimepiride 2 mg once daily) will be added, or doses maximized, during the first 2 weeks of the lead-in period. Afterwards, patient's metformin or sulfonylurea dose will be maintained at the new dose stable for 4 weeks before baseline metabolic and study-specific liver imaging. After patients sign the informed consent and meet eligibility criteria, baseline imaging and metabolic studies will be performed. These will include measurement of IHTG by 1H-MRS, liver fibrosis by VCTE (Fibroscan) and MRE, and additional imaging by T1 MRI mapping. Metabolic testing will be done with the patient being admitted to the CRC (clinical research unit) for an overnight stay. Assessment of insulin sensitivity and DNL will be done with the administration of stable isotopes of glucose (intravenously) and deuterium labeled water (orally) to measure glucose and lipid turnover and substrate oxidation (with indirect calorimetry) during a euglycemic hyperinsulinemic clamp. After all baseline tests are completed, patients will be asked to take a therapeutic dose of 800 mg lanifibranor (QD), or placebo, for 24 weeks. They will be closely followed by study staff every 4 weeks with visits to the CRC and interim phone calls. At 24 weeks, all baseline tests will be repeated and treatment considered completed. There will be a final, off-drug, safety follow-up visit 4 weeks after treatment at week 28. After this the participant will have completed all study procedures. Note: The investigators recalculated the sample size for the primary endpoint of change in intrahepatic triglyceride (IHTG) measured by 1H-MRS with lanifibranor (800 mg/day) vs. placebo based on the data from the population with diabetes from the Phase IIb NATIVE (NCT03008070: NAsh Trial to Validate IVA337 Efficacy; liver histology results) and comparing to prior studies by Dr. Cusi et al that had simultaneous liver histology and liver fat measured by 1H-MRS (Belfort et al, NEJM 2006; Cusi et al, Annals Int Med 2016). From this analysis, the required sample size per group calls for 15 patients in each arm (lanifibranor vs. placebo) to complete treatment. Conservatively assuming that 10 % of the randomized patients will not complete the trial (dropouts), the total number of patients to be randomized is 33-34 patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
128
The film-coated tablet contains 400 mg of the active ingredient lanifibranor (IVA337) for an immediate release formulation. Participants receive 800mg/ day
Film-coated tablets with a core containing 900 mg of a physical mixture of lactose monohydrate, microcrystalline cellulose, pre-gelatinized starch and magnesium stearate serve as placebo.
University of Florida
Gainesville, Florida, United States
Change in Intrahepatic Triglycerides (IHTG) Quantified by Proton Magnetic Resonance and Spectroscopy (¹H-MRS)
Changes from baseline (Adjusted LS means) in absolute percent for change in intrahepatic triglycerides (IHTG) quantified by proton magnetic resonance and spectroscopy (¹H-MRS)are reported in each arms.
Time frame: 24 weeks of treatment
Percentage of Patients With a Decrease From Baseline in IHTG (Quantified by ¹H-MRS) to Week 24 of ≥ 30%.
Percentage of patients with a decrease from baseline in IHTG (quantified by ¹H-MRS) to week 24 of ≥ 30% in each group.
Time frame: 24 weeks of treatment.
Percentage of Patients With NAFLD Resolution, Defined as Having ≤ 5.5% IHTG (Quantified by 1H- MRS).
Percentage of patients with NAFLD resolution, defined as having ≤ 5.5% IHTG (quantified by 1H- MRS) in both arms.
Time frame: 24 weeks of treatment.
Improvement in Hepatic Insulin Sensitivity (Hepatic Insulin Resistance Index Reported as Relative Percent Change)
Changes from baseline in hepatic insulin sensitivity (Hepatic Insulin Resistance Index) as a relative percent change is presented (i.e. \[24 week result- baseline result\]/baseline result \*100).
Time frame: 24 weeks of treatment.
Improvement in Adipose Tissue Insulin Sensitivity.
Changes from baseline in absolute value of adipose tissue insulin resistance (ADIPO-IR) index will be compared between both arms. This is calculated using the formula below: Adipo-IR index = fasting serum free fatty acid concentration x fasting plasma insulin level. A higher value indicated higher insulin resistance.
Time frame: 24 weeks of treatment.
Improvement in Muscle Insulin Sensitivity (Rd).
Relative percent changes from baseline in insulin-stimulated muscle glucose disposal (%) will be compared between both arms (i.e. \[24 week result- baseline result\]/baseline result \*100).
Time frame: 24 weeks of treatment.
Absolute Change in Glycemic Control (Hemoglobin A1c).
Absolute changes from baseline will be compared between both arms (i.e., percentage at 24 weeks subtracted from the percentage at baseline).
Time frame: 24 weeks of treatment.
Change in Plasma HDL-C (mg/dl).
Changes from baseline will be compared between both arms.
Time frame: 24 weeks of treatment.
Changes in Hepatic Fibrosis (Liver Stiffness Measurement by Vibration Controlled Transient Elastography in kPa) on Imaging.
Changes from baseline in liver stiffness measurement in kPa by vibration controlled transient elastography measured in both arms.
Time frame: 24 weeks of treatment.
Change in Plasma Biomarkers of Liver Fibrosis (Plasma Cytokeratin 18 Measured in IU/L).
Absolute change (Mean ± SD) changes from baseline in plasma cytokeratin 18 (IU/L) levels in both arms.
Time frame: 24 weeks of treatment.
Changes in Hepatic Fibrosis (Liver Stiffness Measurement by Magnetic Resonance Elastography in kPa) on Imaging.
Changes from baseline in liver stiffness measurement by magnetic resonance elastography is measured in both arms (absolute change in kPa from baseline).
Time frame: 24 weeks of treatment.
Hepatic Fibrosis (Liver Stiffness Measurement by Magnetic Resonance Elastography) on Imaging.
Baseline liver stiffness measurement (LSM) by magnetic resonance elastography (in kPa) in both arms.
Time frame: Baseline measurement of liver stiffness by magnetic resonance elastography is reported in each arm.
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