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Completed Phase 2 Interventional Results available

A POC and Dose-Ranging Study of HTD1801 in PSC Patients

ClinicalTrials.gov ID: NCT03333928

Public ClinicalTrials.gov record NCT03333928. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 25, 2026, 7:56 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Proof-of-Concept and Dose-Ranging Study Investigating the Efficacy and Safety of HTD1801 in Adult Subjects With Primary Sclerosing Cholangitis (PSC)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The study was a dose-ranging, 18-week study comparing two doses of HTD1801 (500 mg BID and 1000 mg BID) to placebo in adult subjects with PSC.

Study identification

NCT ID
NCT03333928
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
59 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 75 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 9, 2018 (Actual)
Primary completion
Apr 30, 2020 (Actual)
Completion
Aug 14, 2020 (Actual)
Last update posted
Aug 25, 2026

2018 – 2020

United States locations

U.S. sites
24
U.S. states
14
U.S. cities
22
Facility City State ZIP Site status
Arizona Liver Health Chandler Arizona 85224 —
Arizona Liver Health Tuscon Arizona 85711 —
Fresno Clinical Research Center Fresno California 93720 —
Keck School of Medicine of USC Los Angeles California 90033 —
Cedars-Sinai Medical Center Los Angeles California 90048 —
University of Colorado, Denver Aurora Colorado 80045 —
South Denver Gastroenterology, PC Englewood Colorado 80113 —
Yale School of Medicine New Haven Connecticut 06520 —
Florida Research Institute Lakewood Rch Florida 34211 —
University of Miami Miami Florida 33136 —
Mercy Medical Center Baltimore Maryland 21202 —
Walter Reed National Military Medical Center Bethesda Maryland 20889 —
Michigan Medicine University of Michigan Ann Arbor Michigan 48109 —
Gastrointestinal Associates Flowood Mississippi 39232 —
Washington University School of Medicine St Louis Missouri 63110 —
Mount Sinai - Icahn School of Medicine New York New York 10029 —
Cumberland Research Associates Fayetteville North Carolina 28304 —
Wake Forest Baptist Health Winston-Salem North Carolina 27157 —
Gastro One Germantown Tennessee 38138 —
Vanderbilt University Medical Center Nashville Tennessee 37212 —
Pinnacle Clinical Research Austin Texas 78746 —
Pinnacle Clinical Research San Antonio Texas 78229 —
Swedish Medical Center Seattle Washington 98104 —
University of Washington Seattle Washington 98104 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03333928, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 25, 2026 · Synced Oct 25, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03333928 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →