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IVA337

Phase 3

NASH - Nonalcoholic Steatohepatitis | Small molecule | Metabolic |Inventiva S.A. - American Depository Shares|Trials Updated: Sep 9, 2026

IVA337 development status

Highest phase Phase 3
Registered trials 6 across 2 sponsors since Jul 2015

IVA337 target and mechanism

Molecular targetPPARα/PPARδ/PPARγ
ModalitySmall molecule

Also known as Lanifibranor

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials5
Total Enrollment1,559

FDA Designations

No designations recorded

IVA337 clinical trials

IVA337 · 5 trials · 7 indications

Phase 3 1Phase 2 4
NCT04849728A Phase 3 Study Evaluating Efficacy and Safety of Lanifibranor Followed by an Active Treatment Extension in Adult Patients With (NASH) and Fibrosis Stages F2 and F3 ( NATiV3 )NASH - Nonalcoholic Steatohepatitis
ACTIVE NOT_RECRUITING1,000 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Phase 3 Study Evaluating Efficacy and Safety of Lanifibranor Followed by an Active Treatment Extension in Adult Patients With (NASH) and Fibrosis Stages F2 and F3 ( NATiV3 )
NASH - Nonalcoholic SteatohepatitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Resolution of NASH and improvement of fibrosis
Part A: Date of randomisation until the date of biopsy at Week 72

Part A: DBPC: Resolution of NASH and improvement of fibrosis at Week 72, defined by NASH CRN scores for ballooning of 0 and inflammation of 0 to 1, and fibrosis score ≥1 stage decrease compared to Baseline

Safety Analyses
48 weeks after completion of DBPC period

Part B: ATE: * Using the DBPC on-treatment period, comparing the 2 active arms versus placebo * Using the DBPC +ATE on treatment periods, assessing the 2 active arms. For adverse events, adjudicated liver events, and DILI and MACE events, in addition to the raw cumulative incidence proportions, the exposure-adjusted incidence rates will be provided based on the time patients are at risk.

Change in Intrahepatic Triglycerides (IHTG) Quantified by Proton Magnetic Resonance and Spectroscopy (¹H-MRS)
24 weeks of treatment

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.

Absolute Change in HbA1c
From Baseline to Week 24

Effect of lanifibranor alone compared to placebo and the effect of lanifibranor in combination with empagliflozin compared to placebo on absolute change in HbA1c from baseline (Week 0) to Week 24

SAF Activity Score (SAF-A) Decrease of at Least 2 Points With no Worsening of the CRN Fibrosis Score (CRN-F)
24 weeks

SAF-A is the activity part of the Steatosis Activity Fibrosis \[SAF\] histological score, calculated as the sum of lobular inflamation score and balloning score. No worsening of fibrosis means that the CRN fibrosis score (CRN-F) remains stable or decreases.

Measurement of skin thickness by the Modified Rodnan Skin Score (MRSS)
48 weeks

Mean change of the MRSS from baseline

Secondary Endpoints

Percentage of Patients With a Decrease From Baseline in IHTG (Quantified by ¹H-MRS) to Week 24 of ≥ 30%.
24 weeks of treatment.
Percentage of Patients With NAFLD Resolution, Defined as Having ≤ 5.5% IHTG (Quantified by 1H- MRS).
24 weeks of treatment.
Improvement in Hepatic Insulin Sensitivity (Hepatic Insulin Resistance Index Reported as Relative Percent Change)
24 weeks of treatment.
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Lanifibranor (IVA 337) (800 mg/day)EXPERIMENTAL2 Lanifibranor tablets 400mg + 1 Placebo to match tablet with food --\> once a day (quaque die, QD)
Lanifibranor (IVA 337) (1200 mg/day)EXPERIMENTAL3 Lanifibranor tablets 400mg with food --\> once a day (quaque die, QD)
Matching placeboPLACEBO_COMPARATOR3 Placebo to match tablets with food --\> once a day (quaque die, QD)
lanifibranor armACTIVE_COMPARATORTwo arm, randomized (1:1), double-blind, placebo-controlled, 24-week treatment study receiving lanifibranor 800 mg/day.
PlaceboPLACEBO_COMPARATORTwo arm, randomized (1:1), double-blind, placebo-controlled, 24-week treatment study receiving placebo.
Lanifibranor (800 mg/day)EXPERIMENTALLanifibranor (800 mg/day): two film-coated tablets of 400 mg each, once-a-day (QD) with food. For oral use. QD for 24 weeks.
Lanifibranor (800 mg/day) plus Empagliflozin (10mg/day)EXPERIMENTALLanifibranor (800 mg/day): two film-coated tablets of 400 mg each plus one empagliflozin film-coated tablet of 10 mg (10mg/day), once-a-day (QD) with food. For oral use. QD for 24 weeks
IVA337 1200mgEXPERIMENTALIVA337 400mg, once a day (Quaque Die, QD) with food
IVA337 800mgEXPERIMENTALIVA337 400mg, once a day (Quaque Die, QD) with food

Interventions

NameTypeDescription
IVA337DRUGA total of 1000 patients will be randomised to receive lanifibranor (800 mg/day) or lanifibranor (1200 mg/day), or matching placebo, employing a 1:1:1 randomisation scheme, respectively, without interruption between Part A and Part B.
PlaceboDRUGA total of 1000 patients will be randomised to receive lanifibranor (800 mg/day) or lanifibranor (1200 mg/day), or matching placebo, employing a 1:1:1 randomisation scheme, respectively, without interruption between Part A and Part B.
LanifibranorDRUGThe film-coated tablet contains 400 mg of the active ingredient lanifibranor (IVA337) for an immediate release formulation. Participants receive 800mg/ day
EmpagliflozinDRUG10 mg
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites459

Prescreening Criteria: * Diagnosed with NASH on prior liver biopsy * Type 2 diabetes with high waist circumference or obesity or hepatic steatosis on ultrasound * At least 3 of the components of metabolic syndrome Inclusion Criteria: 1. Male or female, aged ≥18 years at the time of signing inform...

Countries:United StatesArgentinaAustraliaBelgiumBrazilBulgariaCanadaChileChinaCzechiaFranceGermanyHungaryIsraelItalyMexicoNetherlandsPolandPortugalPuerto RicoSouth AfricaSpainUkraineUnited KingdomAustriaMauritiusSloveniaSwitzerland
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Recent Changes (Last 90 Days)

MEDIUMOct 10, 2026NCT05232071TRIAL_REMOVED: changed
MEDIUMOct 10, 2026NCT05232071TRIAL_REMOVED: changed
MEDIUMOct 10, 2026NCT05232071TRIAL_REMOVED: changed

Frequently asked questions about IVA337

What is IVA337?

IVA337, also known as lanifibranor, is an investigational oral small molecule developed by Inventiva S.A. for metabolic and fibrotic diseases. It is being studied in nonalcoholic steatohepatitis (NASH) and diffuse cutaneous systemic sclerosis. It has not been approved by any regulatory agency.

What is IVA337 used for in NASH?

IVA337 is being evaluated for the treatment of nonalcoholic steatohepatitis (NASH) with liver fibrosis. The Phase 3 NATiV3 trial is studying it in adults with NASH and fibrosis stages F2 and F3. It remains investigational and is not approved for any indication.

What does IVA337 target?

IVA337 targets PPARα, PPARδ, and PPARγ, three nuclear receptors involved in regulating lipid metabolism, inflammation, and fibrosis. This pan-PPAR mechanism is intended to address multiple pathways implicated in NASH and systemic sclerosis.

Who is developing IVA337?

IVA337 is being developed by Inventiva S.A., a clinical-stage biopharmaceutical company. Its American Depositary Shares trade on the Nasdaq under the ticker IVA.

What phase is IVA337 in?

IVA337 is in Phase 3 development. The pivotal NATiV3 trial (NCT04849728) is active but not recruiting, with an enrollment of 1,000 participants. Earlier Phase 2 trials in NASH and diffuse cutaneous systemic sclerosis have been completed.

What clinical trials is IVA337 in?

IVA337 has been studied in three registered trials. The Phase 3 NATiV3 trial (NCT04849728) is ongoing in NASH with fibrosis. Completed trials include a Phase 2b NASH study (NCT03008070) and a Phase 2 proof-of-concept trial in diffuse cutaneous systemic sclerosis (NCT02503644).