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IVA337

Phase 3

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

Target and mechanism

Molecular targetPPARα/PPARδ/PPARγ
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment1,042

FDA Designations

No designations recorded

Clinical trial landscape

IVA337 · 4 trials · 5 indications

Phase 3 1Phase 2 3
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.

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

Change in Liver Tests (ALT)
from Baseline to Week 24
Change in Liver Tests (AST)
from Baseline to Week 24
Percentage Change in Insulin Resistance and Glycaemic Control (HOMA-IR)
from Baseline to Week 24
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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 (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
PlaceboPLACEBO_COMPARATORPlacebo to match, 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.
LanifibranorDRUG800 mg
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)

LOWJul 5, 2026NCT04849728lastUpdatePostDate: changed
LOWJul 5, 2026NCT04849728lastUpdatePostDate: changed
LOWJul 5, 2026NCT04849728lastUpdatePostDate: changed

Frequently asked questions about IVA337

What is IVA337 used for?

IVA337, also known as lanifibranor, is being developed for nonalcoholic steatohepatitis (NASH), including NASH with fibrosis and NASH with type 2 diabetes, and for diffuse cutaneous systemic sclerosis (scleroderma). It is an investigational small molecule and has not been approved for any indication.

What does IVA337 target?

IVA337 (lanifibranor) targets PPARα, PPARδ, and PPARγ, acting as a pan-PPAR agonist. By engaging all three peroxisome proliferator-activated receptor subtypes, it is designed to address metabolic and fibrotic pathways relevant to NASH and systemic sclerosis.

Who is developing IVA337?

IVA337, or lanifibranor, is being developed by Inventiva S.A., whose American Depositary Shares trade on the Nasdaq under the ticker IVA. Inventiva is the sponsor of the clinical program evaluating the drug in NASH and diffuse cutaneous systemic sclerosis.

What phase is IVA337 in?

IVA337 (lanifibranor) is in Phase 3 development. The pivotal NATiV3 trial in NASH with fibrosis stages F2 and F3 is active and no longer recruiting, while earlier Phase 2 studies in NASH and diffuse cutaneous systemic sclerosis have been completed. It remains investigational.

What clinical trials is IVA337 in?

IVA337 has been studied in four trials. The Phase 3 NATiV3 study (NCT04849728) is active not recruiting in NASH with F2 and F3 fibrosis. Completed trials include the Phase 2b NASH study NCT03008070, the Phase 2 scleroderma study NCT02503644, and the Phase 2 NASH with type 2 diabetes study NCT05232071.

Is IVA337 the same as lanifibranor?

Yes, IVA337 and lanifibranor are the same investigational compound. IVA337 is the earlier code name used in Phase 2 studies such as NCT03008070 and NCT02503644, while lanifibranor is the name used in the Phase 3 NATiV3 trial and the Phase 2 combination study with empagliflozin.