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Pulmonary Arterial HypertensionPhase 2LIBERTY2NCT02736149

Open-Label Extension Study of Ubenimex in Patients With Pulmonary Arterial Hypertension (WHO Group 1)

A Phase 2 study testing ubenimex in people with Pulmonary Arterial Hypertension, run by Eiger BioPharmaceuticals at 28 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Ubenimex is being developed for the treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group 1) to improve exercise capacity and delay clinical worsening. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Pulmonary Arterial Hypertension
What is being tested?
ubenimex
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
51 participants
Where
28 sitesin 2 countries
Study dates
Dec 2016to Aug 2018
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must have completed Study EIG-UBX-001 through Week 24.
  • In the opinion of the Principal Investigator, has been generally compliant with study requirements during Study EIG-UBX-001.
  • Agrees to use a medically acceptable method of contraception throughout the entire study period.
  • Willing and able to comply with scheduled visits, treatment plans, and laboratory tests and other study procedures.

Who cannot join

  • Is pregnant or lactating.
  • Concurrent regular use of another leukotriene pathway inhibitor.
  • Any reason that, in the opinion of the investigator, precludes the patient from participating in the study.
  • Any condition that is unstable or that could jeopardize the safety of the patient and his/her compliance in the study
  • A serious uncontrolled medical disorder/condition that in the opinion of the investigator would impair the ability of the patient to receive protocol therapy
  • An ongoing, drug-related, serious adverse event (SAE).
Show all 10Show fewer
  • Significant/chronic renal insufficiency.
  • Transaminases (alanine transaminase, aspartate transaminase) levels >3 × upper limit of normal (ULN) and/or bilirubin level >2 × ULN.
  • Absolute neutrophil count <1500 mm3.
  • Hemoglobin concentration <9 g/dL at Screening.

Trial locations and contacts

28 sites in 2 countries.

28 sites in 2 countries

United States26 sites
  • University of Michigan

    Ann Arbor, Michigan, 48103

  • University of Colorado Denver

    Aurora, Colorado, 80045

  • Johns Hopkins University, Pulmonary and Critical Care Medicine

    Baltimore, Maryland, 21205

  • California Heart Center Foundation, An Affiliate of Cedars-Sinai Heart Institute, Cedars-Sinai Medical Care Foundation

    Beverly Hills, California, 90211

  • Tufts Medical Center

    Boston, Massachusetts, 02111

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

  • Boston University School of Medicine

    Boston, Massachusetts, 02118

  • Cleveland Clinic Respiratory Institute

    Cleveland, Ohio, 44195

  • UT Southwestern Medical Center

    Dallas, Texas, 75390

  • Duke University Medical Center

    Durham, North Carolina, 27710

  • Houston Methodist Hospital

    Houston, Texas, 77030

  • UCSD Medical Center

    La Jolla, California, 92103

  • Kentuckiana Pulmonary Associates

    Louisville, Kentucky, 40202

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232

  • Weill Cornell Medicine

    New York, New York, 10065

  • Stanford University Medical Center

    Palo Alto, California, 94305

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Allegheny General Hospital

    Pittsburgh, Pennsylvania, 15212

  • University of Pennsylvania Medical Center

    Pittsburgh, Pennsylvania, 15213

  • Alpert Medical School of Brown University Rhode Island Hospital

    Providence, Rhode Island, 02903

  • Mayo Clinic College of Medicine

    Rochester, Minnesota, 55905

  • University Texas Health Science Center

    San Antonio, Texas, 78229

  • Chest Medicine Associates

    South Portland, Maine, 04106

  • Washington University

    St Louis, Missouri, 63130

  • Harbor - UCLA Medical Center

    Torrance, California, 90502

  • Cleveland Clinic, Florida

    Weston, Florida, 33331

Other trials in United States

Canada2 sites
  • London Health Sciences Centre

    London, Ontario, N6A 5W9

  • University of Ottawa Heart Institute

    Ottawa, Ontario, K1Y 4W7

Other trials in Canada

About this study

Official title: A Phase 2, Open-Label, Extension Study to Evaluate the Long-Term Safety and Efficacy of Ubenimex in Patients With Pulmonary Arterial Hypertension (WHO Group 1)

Ubenimex is being developed for the treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group 1) to improve exercise capacity and delay clinical worsening.

This study is a Phase 2, open-label, extension study to evaluate long-term safety and efficacy of ubenimex in patients with PAH (WHO Group 1) who complete Study EIG-UBX-001.

Read the detailed description

This study is a Phase 2, open-label, multicenter, extension study to evaluate long-term safety and efficacy of ubenimex in patients with PAH (WHO Group 1) who complete Study EIG-UBX-001 (Study EIG-UBX-001 is a Phase 2, randomized, double-blind, placebo-controlled clinical trial) and meet the eligibility criteria for Study EIG-UBX-002. The primary objective for this study is:

  • to obtain long-term safety and tolerability data for ubenimex (150 mg administered three times daily [TID]) in patients with PAH (WHO Group 1).
Being tested
ubenimex
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • ubenimexDrug

    Also called UBX

Study groups in NCT02736149
Study groupRoleWhat they receive
ubenimexExperimentalubenimex capsules 150 mg three times a day (TID), administered orally, minimum of 24 weeks for all patients. The maximum anticipated time an individual patient will participate will vary because treatment will continue until the last patient enrolled has received at least 24 weeks of open-label treatment.
Receives: Drug: ubenimex

What is being measured

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

  1. Treatment-emergent Adverse Events (TEAEs)

    Number of Patients with TEAEs collected for all patients and recorded on the Adverse Event Case Report Form

    Measured: At least 24 weeks of open-label treatment with ubenimex followed by 4 weeks follow-up

Timeline

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

  1. First posted13 Apr 2016 (estimated)
  2. Study startDec 2016
  3. Primary completionMar 2018
  4. Study completionAug 2018

Why it stopped: Following the failure to demonstrate efficacy in EIG-UBX-001, the sponsor decided to terminate Study EIG-UBX-002.

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02736149
Sponsor's protocol ID
EIG-UBX-002
Acronym
LIBERTY2
Status last verified
Dec 2022
First submitted
4 Apr 2016
Last updated
18 Jan 2023

Publications

  • Tian W, Jiang X, Tamosiuniene R, Sung YK, Qian J, Dhillon G, Gera L, Farkas L, Rabinovitch M, Zamanian RT, Inayathullah M, Fridlib M, Rajadas J, Peters-Golden M, Voelkel NF, Nicolls MR. Blocking macrophage leukotriene b4 prevents endothelial injury and reverses pulmonary hypertension. Sci Transl Med. 2013 Aug 28;5(200):200ra117. doi: 10.1126/scitranslmed.3006674.

    PubMed 23986401
  • Qian J, Tian W, Jiang X, Tamosiuniene R, Sung YK, Shuffle EM, Tu AB, Valenzuela A, Jiang S, Zamanian RT, Fiorentino DF, Voelkel NF, Peters-Golden M, Stenmark KR, Chung L, Rabinovitch M, Nicolls MR. Leukotriene B4 Activates Pulmonary Artery Adventitial Fibroblasts in Pulmonary Hypertension. Hypertension. 2015 Dec;66(6):1227-1239. doi: 10.1161/HYPERTENSIONAHA.115.06370. Epub 2015 Oct 5.

    PubMed 26558820

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ubenimex in people with Pulmonary Arterial Hypertension, run by Eiger BioPharmaceuticals at 28 sites in 2 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 4 inclusion and 10 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: stopped early, as of the sponsor's last update on 18 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 28 sites in United States, Canada. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

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?

Yes. Results are posted in the registry (first posted 18 Jan 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Treatment-emergent Adverse Events (TEAEs) (time frame: At least 24 weeks of open-label treatment with ubenimex followed by 4 weeks follow-up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02736149, which also lists 2 linked publications.

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 18 Jan 2023.

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