AzTrials
AzTrials

Primary Biliary Cholangitis (PBC)Phase 1/2NCT07304843

A Two-part Study to Investigate the Effects in Adults of Two Doses of Golexanolone in Patients With Primary Biliary Cholangitis (PBC) With Fatigue and Cognitive Dysfunction

A Phase 1/2 study testing golexanolone in people with Primary Biliary Cholangitis (PBC), run by Umecrine Cognition AB at 38 sites in 8 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The present phase 1b/2 randomised, double-blind, placebo-controlled, two-part study is designed to evaluate the safety, tolerability, pharmacokinetic characteristics and preliminary efficacy of two dose levels of golexanolone compared with placebo among subjects with a history of non-cirrhotic or Child-Pugh class A… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Primary Biliary Cholangitis (PBC)
What is being tested?
golexanolone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
207 participants
Where
38 sitesin 8 countries
Study dates
14 Apr 2023to 9 Sep 2026
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female subjects age ≥ 18 years
  • Diagnosis of PBC based on the presence of ≥2 of 3 key disease characteristics
  • Clinically significant fatigue defined for the purposes of this study as a PBC-40 fatigue domain score of ≥29 at screening
  • Clinically significant cognitive symptoms, defined for the purposes of this study as a PBC-40 cognitive domain ≥16 at screening
  • Stable PBC SoC therapy (if any),for at least 3 months prior to randomisation
  • For all women of childbearing potential (WOCBP) a negative pregnancy test at screening and a negative urine dip-stick pregnancy test at baseline, prior to first dose of IMP
Show all 11Show fewer
  • WOCBP must be willing to use a contraceptive method with a failure rate of < 1% and agree to continue use of this method for the duration of the study and thereafter for 1 month after the last dosing of the IMP
  • Females of non-childbearing potential must have documented tubal ligation or hysterectomy; or be post-menopausal
  • Fertile male subjects must be willing to use condom and assure that their female partner will use contraceptive methods with a failure rate of < 1%
  • Willing and able to give informed consent
  • The subject should be judged by the Investigator to be lucid and oriented to person, place, time, and situation when giving the informed consent

Who cannot join

  • Child-Pugh class B or C cirrhosis
  • Clinical evidence of hepatic decompensation (e.g. current or prior HE, ascites, or variceal bleeding)
  • History of hepatocellular carcinoma
  • Bilirubin >1.5 x ULN
  • Glomerular filtration rate (GFR) <35 mL/min/1.73m2
  • Low Haemoglobin (HB), i.e. subjects with moderate/severe anaemia
Show all 25Show fewer
  • Low S-B12 or low P-folate
  • Evidence of biliary obstruction
  • Any positive result on screening for human immunodeficiency virus (HIV), or hepatitis B (serum hepatitis B surface antigen positive)
  • Prolonged QTcF (>500 ms), or any clinically significant abnormality in the resting ECG, as judged by the Investigator (at screening)
  • Concomitant disease characterised by chronic fatigue and/or cognitive impairment
  • Clinically significant bowel disease, including obstruction, active inflammatory bowel disease, or malabsorption
  • Clinically significant sleep apnoea
  • An uncontrolled thyroid disorder
  • Subjects with a history of or currently active immune disorders (i.e. uncontrolled) other that PBC (including autoimmune disease) and/or diseases requiring immunosuppressive drugs
  • Clinical diagnosis of autoimmune hepatitis overlap
  • The presence, as judged by the Investigator, of clinically significant concomitant illness which would jeopardise safe participation in the study and /or the interpretation of study findings
  • Regular use of prescribed or over the counter (OTC) medications known to cause fatigue or cognitive dysfunction
  • Use of prohibited medications within 14 days prior to randomisation
  • Anticipated change in PBC medication and/or significant medical or surgical intervention within the duration of the study
  • Regular (more than 1 week per month) alcohol consumption in excess of 14 units per week
  • Administration of another new chemical entity or has participated in any other clinical study that included drug treatment with the last administration within 3 months prior to administration of IMP in this study
  • Females who are pregnant, nursing or actively trying to conceive a child
  • Expected inability to swallow the required number of IMP capsules at the applicable dose level
  • History of severe allergy/hypersensitivity or on-going allergy/hypersensitivity, as judged by the Investigator

Trial locations and contacts

38 sites in 8 countries.

38 sites in 8 countries

Spain9 sites
  • Hospital Universitario Parc Taulí

    Barcelona, 08208

  • Hospital Clinic Barcelona

    Barcelona, 8036

  • Hospital General Universitario Gregorio Marañón

    Madrid, 28007

  • Hospital 12th October, Madrid

    Madrid, 28041

  • Hospital Universitario Virgen De La Victoria

    Málaga, 29010

  • University Hospital Complex of Pontevedra & IIS Galicia South, Pontevedra

    Pontevedra, 36071

  • University Hospital Marquez de Valdecilla, Santander

    Santander, 39008

  • Virgen del Rocio University Hospital

    Seville, 41013

  • Hospital Universitario y Politécnico La Fe

    Valencia, 46026

Other trials in Spain

United Kingdom9 sites
  • NIHR Birmingham BRC

    Birmingham, B15 2TT

  • Glasgow Royal Infirmary

    Glasgow, G4 0SF

  • Royal Free London NHS Foundation Trust

    London, NW3 2QG

  • Guy's and St Thomas' Hospital, London

    London, SE1 7EH

  • Freeman Hospital

    Newcastle, NE7 7DN

  • Nottingham Digestive Diseases Centre and Biomedical Research Centre Nottingham University Hospitals NHS Trust, Queen's Medical Centre

    Nottingham, NG7 2UH

  • Oxford University Hospitals NHS Foundation Trust

    Oxford

  • Dept of Gastroenterology & Hepatology Portsmouth Hospitals University NHS Trust Queen Alexandra Hospital

    Portsmouth, PO6 3LY

  • Royal Wolverhampton NHS Trust, New Cross Hospital

    Wolverhampton, WV10 0QP

Other trials in United Kingdom

Turkey (Türkiye)8 sites
  • Hacettepe University, Fakulty of Medicine, Department of Gastroenterology and Hepatology

    Ankara, 06230

  • 9 Eylul University Research and Application Hospital Department of Gastroenterology

    Balçova, 35340

  • Dicle University Faculty of Medicine Department of Gastroenterology

    Diyarbakır, 21280

  • Ege University Faculty of Medicine, Department of Gastroenterology

    Izmir, 35100

  • Kocaeli University Faculty of Medicine Gastroenterology and Hepatology Department

    Kocaeli, 41100

  • Recep Tayyip Erdoğan University Training and Research Hospital, Department of Gastroenterology

    Rize, 53020

  • Harran Üniversitesi Osmanbey Campus Department of Gastroenterology

    Sanliurfa, 63300

  • Karadeniz Technical University, Farabi Hospital, Department of Gastroenterology

    Trabzon, 61080

Other trials in Turkey (Türkiye)

Italy6 sites
  • Università di Milano-Bicocca, S.C. ASST Grande Ospedale Metropolitano Niguarda, Dipartimento di Medicina e Chirurgia, Epatologia e Gastroenterologia

    Milan, 20162

  • University of Padova, Department of Surgery, Oncology and Gastroenterology

    Padova, 35128

  • University Hospital Paolo Giaccone, University of Palermo

    Palermo, 90127

  • A. Gemelli Polyclinic, Sacro Cuore Catholic University

    Roma, 168

  • Humanitas University

    Rozzano, 20089

  • University of Udine

    Udine, 33100

Other trials in Italy

Germany2 sites
  • University Hospital Düsseldorf

    Düsseldorf, 40225

  • University of Leipzig

    Leipzig, 04103

Other trials in Germany

Greece2 sites
  • Hippokration General Hospital of Athens

    Athens, 11527

  • University Hospital of Patras

    Pátrai, 26504

Other trials in Greece

Hungary1 site
  • Facility of CRU Hungary Ltd.

    Kistarcsa, 2143

Other trials in Hungary

Serbia1 site
  • University Medical Center "Zvezdara"

    Belgrade, 11000

Other trials in Serbia

About this study

Official title: A Randomised, Double-blind, Placebo-controlled, Two-part Study to Evaluate the Pharmacokinetics, Safety and Tolerability, and Preliminary Efficacy of Two Dose Levels of Golexanolone in Subjects With Primary Biliary Cholangitis (PBC), Fatigue, and Cognitive Dysfunction

The present phase 1b/2 randomised, double-blind, placebo-controlled, two-part study is designed to evaluate the safety, tolerability, pharmacokinetic characteristics and preliminary efficacy of two dose levels of golexanolone compared with placebo among subjects with a history of non-cirrhotic or Child-Pugh class A cirrhotic Primary Biliary Cholangitis (PBC) with clinically significant fatigue and cognitive symptoms on stable background standard of care (SoC) PBC medication. The objectives of this research study are to assess the safety and tolerability as well the pharmacokinetic (PK) characteristics of golexanolone administered 40 mg BID for 5 days in the target population (part A) and to assess the safety and tolerability, the effects of golexanolone on health-related quality of life (HRQoL), including fatigue, day-time sleepiness and cognitive function as well as Investigator's overall impression of treatment effect of 28 days twice per day (BID) treatment with two dose levels of golexanolone versus placebo (part B).

Being tested
golexanolone, Placebo
Keywords
PBC, Cognition, Fatigue
Medical subject headings
Liver Cirrhosis, Biliary, Fatigue

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • golexanoloneDrug

    soft gelatin capsules, oral dosage twice per day for up to 28 days

  • golexanoloneDrug

    soft gelatin capsules, oral dosage twice a day for up to 28 days

  • PlaceboDrug

    soft gelatin capsules, oral dosage twice a day for up to 28 days

  • golexanoloneDrug

    soft gelatin capsules, oral dosage twice per day for 5 days

  • PlaceboDrug

    soft gelatin capsules, oral dosage twice per day for 5 days

Study groups in NCT07304843
Study groupRoleWhat they receive
Part B: Treatment arm 1 (golexanolone 40 mg)Experimental40 mg golexanolone BID
Receives: Drug: golexanolone
Part B: Treatment arm 2 (golexanolone 80 mg)Experimental80 mg golexanolone BID
Receives: Drug: golexanolone
PlaceboPlacebo comparatorPart B: Placebo BID
Receives: Drug: Placebo
Part A: GolexanoloneExperimental40 mg golexanolone BID
Receives: Drug: golexanolone
Part A: PlaceboPlacebo comparatorPlacebo BID
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 1. Frequency, intensity, and seriousness of adverse events (AEs) from baseline to Day 28 (part B)

    Frequency, intensity, and seriousness of adverse events (AEs) from baseline to Day 28

    Measured: From enrollment to the end of treatment at 28 days

  2. Frequency, intensity, and seriousness of adverse events (AEs) from baseline to Day 5 (part A)

    Frequency, intensity, and seriousness of adverse events (AEs)

    Measured: From Baseline to Day 5

Secondary outcomes (8)
  1. 1. Change from baseline to Day 28 in PBC-40 scores for each of the domains (cognition, itch, fatigue, social, emotional, and general symptoms) (part B)

    The PBC-40 is a patient-derived, disease specific health-related quality of life measure for PBC. The paper questionnaire consists of 40 questions, each scored on a scale of 1 to 5 (where 1=least impact, 5=greatest impact) grouped into six domains (cognition, itch, fatigue, social, emotional, and general symptoms). For each domain, scoring involves summing individual question response scores, range of 6-30. Higher scores indicate a poorer quality of life

    Measured: From baseline to Day 28

  2. 2. Change from baseline to Day 28 in EQ-5D-3L tool (part B)

    The EQ-5D tool is a standardised measure of health status developed to provide a simple, generic measure of health for clinical and economic appraisal.

    Measured: From baseline to Day 28

  3. 3. Change from baseline to Day 28 in daytime sleepiness related symptoms using the Epworth Sleepiness Scale (ESS) (part B)

    ESS is a validated self-administered questionnaire for assessment of daytime hypersomnolence. Respondents are asked to rate, on a 4-point scale (0-3), their usual chances of dozing off or falling asleep while engaged in eight different activities. The ESS score (the sum of eight item scores, 0-3) can range from 0 to 24. The higher the ESS score, the higher that person's average sleep propensity in daily life, or their 'daytime sleepiness'.

    Measured: From baseline to Day 28

  4. 4. Change from baseline to Day 28 in Portosystemic Hepatic Encephalopathy Score (PHES) total score (part B)

    The PHES is composed of five sub-tests, number connection test-A (NCT-A), number connection test-B (NCT-B), serial dotting test (SDT), line tracing test (LTT) and digit symbol test (DST). PHES assesses motor speed, motor accuracy, concentration, attention, visual perception, visual-spatial orientation, visual construction, and memory.

    Measured: From baseline to Day 28

  5. 5. Change from baseline to Day 28 in Rey Auditory Verbal Learning test (RAVLT) (part B)

    The RAVLT is a validated word list learning task composed of 15 words that are read to the subject at a rate of one word/second after which the subject is asked to recall as many words as they can. This procedure is repeated five times. The sum of words recalled across these five trials constitutes the immediate recall score.

    Measured: From baseline to Day 28

  6. 6. Change from baseline to Day 28 in Delis and Kaplan Executive Function System (D-KEFS) Letter and Category fluency subtests (part B)

    The Category Fluency and Letter Fluency tests from the D-KEFS are validated ideational fluency tasks in which the subject is asked to say as many words as possible in 1 minute that adhere to a particular rule.

    Measured: From baseline to Day 28

  7. 7. To evaluate the Investigator's overall impression of treatment effect by Clinical Global Impression of change, PBC version (CGI-C-PBC) from baseline to Day 28 (part B)

    The clinical global impression (CGI) scale consists of two clinician-rated instruments, CGI-S-PBC and CGI-C-PBC, respectively measuring overall disease severity and change. The CGI-S-PBC entails a 30-45 minute semi-structured interview examining all six clinical domains identified as clinically relevant for patients living with PBC. Domain-specific and global ratings are rendered by trained independent clinical raters who are experts in PBC and have been certified for this purpose to be central raters. All CGI-S-PBC and CGI-C-PBC interviews will be video-recorded and used to support the evaluation made by the raters.

    Measured: From baseline to Day 28

  8. 8. To assess the exposure of two dose levels of golexanolone in the target population treated for 28 days (part B)

    The lowest plasma concentration before the next dose (Ctrough) will be assessed pre-dose on Days 1, 14, and 28

    Measured: At Day 1, 14 and 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Dec 2025
  2. Study start14 Apr 2023
  3. Primary completion9 Sep 2026
  4. Study completion9 Sep 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Part A (phase 1b) includes 6 subjects on active (40 mg BID for five days) and 2 subjects on placebo (BID for five days) Part B (phase 2a) includes 3 arms (40 mg BID, 80 mg BID or placebo for 28 days)
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
207 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07304843
Sponsor's protocol ID
UCAB-CT-05
Other IDs
2024-515907-20-00, IRAS ID 1003871, 515-04-27580-22-1, E-66175679-514.02.02-1264666
Status last verified
Oct 2026
First submitted
18 Nov 2025
Last updated
16 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing golexanolone in people with Primary Biliary Cholangitis (PBC), run by Umecrine Cognition AB at 38 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 25 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 38 sites in Spain, United Kingdom, Turkey (Türkiye), Italy, Germany and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

1. Frequency, intensity, and seriousness of adverse events (AEs) from baseline to Day 28 (part B) (time frame: From enrollment to the end of treatment at 28 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Oct 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in