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DUR-928

Phase 2

Alcoholic Hepatitis | Small molecule | Gastrointestinal |DURECT Corporation|Trials Updated: Sep 24, 2024

DUR-928 development status

Highest phase Phase 2
Registered trials 2 across 1 sponsor since Jan 2018

DUR-928 target and mechanism

Molecular targetDNA methyltransferases
Target classEnzyme
ModalitySmall molecule

Also known as DUR-928 Topical Solution

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment351

FDA Designations

No designations recorded

DUR-928 clinical trials

DUR-928 · 3 trials · 2 indications

Phase 2 3
NCT04563026A Phase 2b Study in Subjects With Alcoholic Hepatitis to Evaluate Safety and Efficacy of DUR-928 TreatmentAlcoholic Hepatitis
COMPLETED307 Analytics
NCT03837743Safety and Efficacy Study of DUR-928 Topical Solution in Subjects With Plaque PsoriasisPlaque Psoriasis
COMPLETED25 Analytics
NCT03432260A Research Study to Assess the Safety, Pharmacokinetics and Pharmacodynamics of DUR-928 in Patients With Alcoholic HepatitisAlcoholic Hepatitis
COMPLETED19 Analytics
PHASE2COMPLETED
A Phase 2b Study in Subjects With Alcoholic Hepatitis to Evaluate Safety and Efficacy of DUR-928 Treatment
Alcoholic HepatitisUnlock trial analytics
PHASE2COMPLETED
Safety and Efficacy Study of DUR-928 Topical Solution in Subjects With Plaque Psoriasis
Plaque PsoriasisUnlock trial analytics
PHASE2COMPLETED
A Research Study to Assess the Safety, Pharmacokinetics and Pharmacodynamics of DUR-928 in Patients With Alcoholic Hepatitis
Alcoholic HepatitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Difference in 90-day mortality or liver transplant between IV DUR-928, 30 mg or 90 mg, and placebo.
Day 90
The Change From Baseline as Assessed on the Investigator's Global Assessment (IGA) Score.
Up to Day 57 (assessed at Baseline, and Weeks 1,2,3,4,5,7,8, change from baseline to week 4 and 8 reported)

The IGA of the Target Plaques will be determined on a 5-point scale. 0=Clear; 1=Almost Clear; 2=Mild; 3=Moderate; 4=Severe

Lille Model for Alcoholic Hepatitis Score
Day 7

The Lille score predicts response of AH subjects to treatment with glucocorticoids, such as prednisolone. This score is based on age, serum albumin, creatinine, PT, and the difference in bilirubin between pre-treatment and Day 7 post-treatment. The Lille score ranges from 0.01 to 1.00. A score \>0.45 predicts a higher risk of death and the recommendation to stop steroid administration. Lille Score = Exp(-R)/(1 + Exp(-R)) Where: R = \[3.19 - (0.101 x Age in years)\] + (1.47 x Albumin in g/dL) + \[0.28215 x (Bilirubin initial - Bilirubin day 7 in mg/dL)\] - (0.206 x Creatinine in mg/dL) - (0.11115 x Bilirubin initial in mg/dL) - (0.0096 x PT in seconds) NOTE: When calculating Lille, use "baseline" values for ALL parameters EXCEPT bilirubin at Day 7. Baseline would be the Day 1 Pre-dose sample result, if available. If not available, then use the Screening sample result.

Model for End Stage Liver Disease (MELD) Score
Baseline (Screening or Day 1 Pre-dose), Day 7 and Day 28

The MELD score at enrollment is a good predictor for AH patient prognosis. Laboratory values for international normalized ratio (INR), serum creatinine (sCr) and bilirubin are used to calculate the MELD score. The MELD score ranges from 6.0 to 40.0 (capped) with a higher score predicting a higher risk of death. A sequentially improving MELD score is associated with a better chance of recovery. MELD score will be calculated using the original formula (pre-2016) which does not include serum sodium level. Original MELD Score = (0.957 x Ln(Serum Creatinine in mg/dL) + 0. 378 x Ln(Serum Bilirubin in mg/dL) + 1.120 x Ln (INR) + 0.643) x 10 Note: (1) If patient received two or more dialysis treatments within the prior 7 days, then the value for serum creatinine will be set to 4.0. (2) If any laboratory value is less than 1.0, the value will be set to 1.0 for the MELD score calculation, in order to avoid negative values resulting from taking the natural log of values less than 1.

Model for End Stage Liver Disease (MELD) Score - Percent Change From Baseline
Baseline (Screening or Day 1 Pre-dose), Day 7 and Day 28

The MELD Score %change from baseline is a %change between 2 time points, baseline and value at a specific time point (Day 7 or Day 28). MELD score is a good predictor of outcome. A declining MELD score suggests disease improvement. Lab values for international normalized ratio (INR), serum creatinine (sCr) and bilirubin are used to calculate the MELD score. MELD score will be calculated using the original formula (pre-2016) which does not include serum sodium level. Original MELD Score = (0.957 x Ln(Serum Creatinine in mg/dL) + 0. 378 x Ln(Serum Bilirubin in mg/dL) + 1.120 x Ln (INR) + 0.643) x 10 Note: (1) If patient received two or more dialysis treatments within the prior 7 days, then the value for serum creatinine will be set to 4.0. (2) If any laboratory value is less than 1.0, the value will be set to 1.0 for the MELD score calculation, in order to avoid negative values resulting from taking the natural log of values less than 1.

Secondary Endpoints

Difference in 90-day mortality between IV DUR-928, 30 mg or 90 mg, and placebo.
Day 90
Difference in 28-day mortality or liver transplant between IV DUR-928, 30 mg or 90 mg, and placebo.
Day 28
Difference in 28-day mortality between IV DUR-928, 30 mg or 90 mg, and placebo.
Day 28
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
DUR-928 (larsucosterol, 30 mg)EXPERIMENTAL -
DUR-928 (larsucosterol, 90 mg)EXPERIMENTAL -
(Placebo) Sterile Water for InjectionPLACEBO_COMPARATOR -
DUR-928 Topical SolutionEXPERIMENTALDUR-928 Topical Solution applied topically once daily to one target lesion on an arm for approximately four weeks.
Vehicle Topical SolutionPLACEBO_COMPARATORVehicle Topical Solution applied topically once daily to one target lesion on an arm for approximately four weeks.
Part A (Moderate AH) DUR-928 30 mgEXPERIMENTALLowest dose of 3 dose escalation arms: 30mg, 90 mg and 150 mg
Part A (Moderate AH) DUR-928 90 mgEXPERIMENTALMiddle dose of 3 dose escalation arms: 30mg, 90 mg and 150 mg
Part A (Moderate AH) DUR-928 150 mgEXPERIMENTALHighest dose of dose escalation arms: 30mg, 90 mg and 150 mg
Part B (Severe AH) DUR-928 30 mgEXPERIMENTALLowest dose of dose escalation arms: 30mg, 90 mg and 150 mg
Part B (Severe AH) DUR-928 90 mgEXPERIMENTALMiddle dose of dose escalation arms: 30mg, 90 mg and 150 mg
Part B (Severe AH) DUR-928 150 mgEXPERIMENTALHighest dose of dose escalation arms: 30mg, 90 mg and 150 mg

Interventions

NameTypeDescription
DUR-928 30 mgDRUGIV infusion
DUR-928 90 mgDRUGIV infusion
Placebo+ Standard of Care (SOC)DRUGIV infusion
DUR-928 Topical SolutionDRUGTopical solution containing active drug
Vehicle Topical SolutionDRUGTopical solution containing no active drug
DUR-928 150 mgDRUGHighest dose of 3 dose escalation arms.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites68

Inclusion Criteria: 1. Able to provide written informed consent (either from subject or subject's legally acceptable representative). 2. Onset of jaundice within prior 8 weeks. 3. Average daily consumption of \>40 (females) or \>60 (males) grams of alcohol for 6 months or longer, with \< 8 weeks of...

Countries:United StatesAustraliaAustriaBelgiumFranceUnited Kingdom
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Frequently asked questions about DUR-928

What is DUR-928?

DUR-928 is an investigational small molecule developed by DURECT Corporation for the treatment of alcoholic hepatitis and plaque psoriasis. It is a Phase 2 clinical-stage candidate that has been studied in randomized, double-blind, placebo-controlled trials. DUR-928 is also known as DUR-928 30 mg and DUR-928 Topical Solution.

What is DUR-928 used for?

DUR-928 is being developed for two indications: alcoholic hepatitis and plaque psoriasis. The alcoholic hepatitis program has been studied in Phase 2 trials, including a Phase 2b study, while the plaque psoriasis program has been evaluated with a topical solution formulation in a Phase 2 trial.

What does DUR-928 target?

DUR-928 targets DNA methyltransferases, a class of enzymes. By acting on these enzymes, DUR-928 is designed to modulate epigenetic regulation. This mechanism distinguishes it from conventional therapies and supports its investigation in both liver and skin conditions.

Who makes DUR-928?

DUR-928 is developed by DURECT Corporation, which trades on the Nasdaq under the ticker DRRX. The company is responsible for the clinical development of DUR-928 across its alcoholic hepatitis and plaque psoriasis programs.

What phase is DUR-928 in?

DUR-928 is in Phase 2 clinical development. It has completed Phase 2 trials in alcoholic hepatitis and plaque psoriasis, including a Phase 2b study in alcoholic hepatitis. DUR-928 is investigational and has not been approved by the FDA for any indication.

What clinical trials is DUR-928 in?

DUR-928 has been studied in completed Phase 2 trials. These include NCT04563026, a Phase 2b study in alcoholic hepatitis with 307 participants, NCT03837743, a Phase 2 trial in plaque psoriasis with 25 participants, and NCT03432260, a Phase 2 study in alcoholic hepatitis with 19 participants.