ClinicalTrials.gg
TerminatedNCT03394781Updated Oct 17, 2022Results posted

A Research Study to Evaluate Safety and Efficacy of DUR-928 in Subjects With Primary Sclerosing Cholangitis (PSC)

A Phase 2 interventional study of DUR-928 in Primary Sclerosing Cholangitis, sponsored by Durect. Terminated at 4 sites in United States. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2022-10-17.

Sponsored by Durect (part of Bausch Health Companies Inc.) · Phase 2, Interventional, and Treatment

Why this study was terminated
poor enrollment
Phase
Phase 2
Study type
Interventional
Enrollment
5
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This is a research trial testing DUR-928 (an experimental medication). The purpose of the trial is to assess whether treatment with DUR-928 has any effect on the treatment of Primary Sclerosing Cholangitis (PSC). This trial will also assess safety (side effects).

02

Conditions studied

  • Primary Sclerosing Cholangitis
03

In context

Cholangitis, Sclerosing

149 studies on the registry are indexed under Cholangitis, Sclerosing; 39 are open to participants now.

This study's enrollment of 5 is below the median of 34 across 94 interventional studies indexed under Cholangitis, Sclerosing.

Browse Cholangitis, Sclerosing studies →

Lead sponsor

Durect is the lead sponsor of 15 studies on the registry; none are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 5 (83%) have results posted.

First submitted before Durect became part of Bausch Health Companies Inc..

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Verified diagnosis of primary sclerosing cholangitis (PSC) for at least 12 months, with or without inflammatory bowel disease (IBD).
  • Serum alkaline phosphatase (ALP) ≥ 1.5 times and with no >15% fluctuation in the past 3 months.
  • In subjects receiving treatment with ursodeoxycholic acid (UDCA), therapy must be stable for at least 3 months and at a dose not greater than 20 mg/kg/day.
  • Subjects of must agree to use a medically acceptable method of to prevent pregnancy in the subject and/or the partner for the duration of their participation in the trial up to 2 months after the last study drug dosing.

Exclusion criteria

Exclusion Criteria:

  • Presence of documented secondary sclerosing cholangitis or small duct PSC
  • Bacterial cholangitis within 30 days prior to Screening
  • Presence of percutaneous drain or endoscopic bile duct stent
  • History of, or suspicion of cholangiocarcinoma.
  • Prior liver transplantation, or currently listed for liver transplantation
  • Presence of other concomitant liver diseases
  • Moderate to Severe active IBD or flare in colitis activity within the last 3 months
  • Any severe and/or untreated concomitant cardiovascular, renal, endocrine or psychiatric disorder
  • Any active malignant disease (within 3 years), other than non-melanomatous skin cancer
  • (HIV) infection
  • Existing or intended pregnancy, or breast feeding
  • Has received medication from another clinical trial within the past 30 days
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • Experimental
    DUR-928 10 mg

    10 mg oral suspension

    Drug: DUR-928

  • Experimental
    DUR-928 50 mg

    50 mg oral suspension

    Drug: DUR-928

Interventions

  • oral suspension daily for 28 days

06

What researchers measure

Primary outcomes

  1. Percent Change of Alkaline Phosphatase (ALP) From Baseline

    Time frame: Day 28 (end of treatment) and Day 56 (end of study/early termination)

Secondary outcomes

  1. Percent Change of Liver Enzymes and Serum Bile Acids (sBA)

    Liver enzymes include alanine transaminase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), bilirubin. Percent change from baseline through the end of study treatment (Day 28) and throughout the follow-up period (Day 56).

    Time frame: Day 28 and Day 56

  2. Percent of Subjects With Reduction of Serum Alkaline Phosphatase (ALP) From Baseline

    Time frame: Day 28 (end of treatment) and Day 56 (end of follow-up)

  3. Percent Change of Selected Biomarkers From Baseline Through the End of Study Treatment and Throughout the Follow-up Period.

    Time frame: Day 28 and Day 56

07

Results

Posted Oct 17, 2022

Participant flow

Study was terminated early due to lack of enrollment.

Participant flow — Overall Study
MilestoneDUR-928 10 mgDUR-928 50 mg
Started32
Completed32
Not completed00

Outcome measures

PrimaryPercent Change of Alkaline Phosphatase (ALP) From Baseline
Time frame:
Day 28 (end of treatment) and Day 56 (end of study/early termination)
Reported as:
Mean · percent change
Percent Change of Alkaline Phosphatase (ALP) From Baseline
percent changeDUR-928 10 mgDUR-928 50 mg
Percent change of ALP from baseline to Day 2823.7 ± 10.716.8 ± 2.97
Percent change of ALP from baseline to Day 5610.7 ± 17.0411.05 ± 8.68
SecondaryPercent Change of Liver Enzymes and Serum Bile Acids (sBA)

Liver enzymes include alanine transaminase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), bilirubin. Percent change from baseline through the end of study treatment (Day 28) and throughout the follow-up period (Day 56).

Time frame:
Day 28 and Day 56
Reported as:
Mean · percent change
Percent Change of Liver Enzymes and Serum Bile Acids (sBA)
percent changeDUR-928 10 mgDUR-928 50 mg
percent ALT change from baseline to Day 2832.87 ± 48.873.0 ± 29.56
percent AST change from baseline to Day 2824.10 ± 35.03-20.25 ± 3.23
percent GGT change from baseline to Day 287.3 ± 4.168.15 ± 1.49
percent direct bilirubin change from baseline to Day 2814.2 ± 24.6134.6 ± NA
percent total bilirubin change from baseline to Day 2812.03 ± 23.0923.85 ± 33.73
percent serum bile acids change from baseline to Day 28-13.93 ± 15.00-44.10 ± 46.95
percent ALT change from baseline to Day 56-9.77 ± 15.30-12.7 ± 5.66
percent AST change from baseline to Day 56-16.23 ± 9.17-9.70 ± 19.09
percent GGT change from baseline to Day 56-7.10 ± 11.87-3.2 ± 2.26
percent direct bilirubin change from baseline to Day 56-12.90 ± NA19.20 ± NA
percent total bilirubin change from baseline to Day 56-24.60 ± 20.4619.14 ± 15.61
percent serum bile acids change from baseline to Day 5635.23 ± 79.79-35.75 ± 72.90
SecondaryPercent of Subjects With Reduction of Serum Alkaline Phosphatase (ALP) From Baseline
Time frame:
Day 28 (end of treatment) and Day 56 (end of follow-up)
Reported as:
Count of participants · Participants
Percent of Subjects With Reduction of Serum Alkaline Phosphatase (ALP) From Baseline
ParticipantsDUR-928 10 mgDUR-928 50 mg
subjects with ≥ 40% reduction of serum ALP from baseline at day 28/end of treatment00
subjects with ≥ 40% reduction of serum ALP from baseline at day 56/end of follow-up00
SecondaryPercent Change of Selected Biomarkers From Baseline Through the End of Study Treatment and Throughout the Follow-up Period.
Time frame:
Day 28 and Day 56

No measurements were reported for this outcome.

Adverse events

Collected over 56 days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
DUR-928 10 mg0/3 (0%)0/3 (0%)2/3 (66.7%)
DUR-928 50 mg0/2 (0%)0/2 (0%)1/2 (50%)
Most frequent other events
Most frequent other events
EventDUR-928 10 mgDUR-928 50 mg
ELEVATED ALKALINE PHOSPHATASEInvestigations0/31/2
ELEVATED ALTInvestigations0/31/2
ELEVATED ASTInvestigations0/31/2
ELEVATED GGTInvestigations0/31/2
ELEVATED SERUM BILE ACIDSInvestigations0/31/2
LEFT EAR ERYTHEMA PRESENTSkin and subcutaneous tissue disorders0/31/2
DRUG INDUCED LIVER INJURYHepatobiliary disorders1/30/2
WORSENING SINUS BRADYCARDIACardiac disorders1/30/2
EXCESSIVE GAS (FLATUS)Gastrointestinal disorders1/30/2

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)DUR-928 10 mgDUR-928 50 mgTotal
<=18 years000
Between 18 and 65 years314
>=65 years011
Sex: Female, Male
Sex: Female, Male(Participants)DUR-928 10 mgDUR-928 50 mgTotal
Female112
Male213
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)DUR-928 10 mgDUR-928 50 mgTotal
Hispanic or Latino000
Not Hispanic or Latino325
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)DUR-928 10 mgDUR-928 50 mgTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White314
More than one race000
Unknown or Not Reported011
Region of Enrollment
Region of Enrollment(Participants)DUR-928 10 mgDUR-928 50 mgTotal
United States325
08

Study locations

4 sites
  • California Pacific Medical Center
    San Francisco, California 94115, United States
  • Mayo Clinic Florida
    Jacksonville, Florida 32224, United States
  • Southern Therapy and Advanced Research
    Jackson, Mississippi 39216, United States
  • Charlotte Mecklenburg Hospital
    Charlotte, North Carolina 28203, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 17, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03394781
Lead sponsor
Durect
Responsible party
Sponsor
First posted
Jan 9, 2018
Start date
Jan 22, 2018
Primary completion
Jan 31, 2019
Completion
Jan 31, 2019
Results posted
Oct 17, 2022
Last update
Oct 17, 2022

Study contacts

Alastair Smith, MD
study director · INC Research/InVentiv Health

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Larsucosterol

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