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Pulmonary Artery HypertensionPhase 2NCT04456998

GB002 in Adult Subjects With Pulmonary Arterial Hypertension (PAH)

A Phase 2 study testing GB002 (seralutinib) and Generic Dry Powder Inhaler in people with Pulmonary Artery Hypertension, run by GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc. at 63 sites in 11 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 primary objective for this trial is to determine the effect of GB002 (seralutinib) on improving pulmonary hemodynamics in subjects with World Health Organization (WHO) Group 1 PAH who are Functional Class (FC) II and III. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Pulmonary Artery Hypertension
What is being tested?
GB002 (seralutinib) and Generic Dry Powder Inhaler
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
86 participants
Where
63 sitesin 11 countries
Study dates
12 Nov 2020to 1 Nov 2022
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

  • A current diagnosis of symptomatic PAH classified by one of the following:
  • Idiopathic PAH (IPAH) or heritable pulmonary arterial hypertension (HPAH).
  • PAH associated with connective tissue disease (CTD-APAH).
  • PAH associated with anorexigen or methamphetamine use.
  • Congenital heart disease with simple systemic to pulmonary shunt at least 1 year after surgical repair.
  • 6MWD ≥ 150 meters and ≤ 550 meters at screening.
Show all 16Show fewer
  • WHO FC II or III symptomatology.
  • Treatment with standard of care PAH background therapies.
  • Documentation of cardiac catheterization within the screening period that is consistent with the diagnosis of PAH and meeting all the following criteria, to be confirmed by a central hemodynamic core laboratory:
  • Mean pulmonary arterial pressure (mPAP) ≥ 25 mmHg (at rest), AND
  • PVR ≥ 400 dyne•sec/cm5, AND
  • Pulmonary capillary wedge pressure (PCWP) or left ventricular-end diastolic pressure (LVEDP) ≤12 mm Hg if PVR ≥400 to <500 dyne∙sec/cm5 OR
  • PCWP or LVEDP ≤15 mmHg if PVR ≥500 dyne∙sec/cm5
  • Pulmonary function tests (PFTs) at screening with the following criteria met:
  • Forced expiratory volume in 1 second (FEV1) divided by the forced vital capacity (FVC) ≥70%;
  • Total lung capacity (TLC) or FVC ≥ 70% predicted

Who cannot join

  • Evidence of chronic thromboembolic disease or acute pulmonary embolism as assessed by ventilation-perfusion (V/Q) scan, computed tomography (CT)-angiogram, or pulmonary angiogram prior to screening.
  • Uncontrolled systemic hypertension as evidenced by sitting systolic blood pressure > 160 mm Hg or sitting diastolic blood pressure > 100 mm Hg during screening visit after a period of rest.
  • Systolic blood pressure < 90 mm Hg during screening and baseline visits.
  • WHO Pulmonary Hypertension Group 2-5.
  • Human immunodeficiency virus (HIV)-associated PAH.
  • History of left-sided heart disease and/or clinically significant cardiac disease.
Show all 27Show fewer
  • Untreated severe obstructive sleep apnea.
  • History of atrial septostomy within 180 days prior to screening.
  • Pulmonary venous occlusive disease (PVOD).
  • Subjects with a history of portopulmonary hypertension or portal hypertension due to cirrhosis classified as Child-Pugh Class A or higher; or baseline ALT or AST > 2 x ULN or Total Bilirubin ≥ 2 x ULN.
  • History of malignancy within 5 years prior to screening.
  • History of a potentially life-threatening cardiac arrhythmia with an ongoing risk.
  • Severe acute or chronic medical or laboratory abnormality that may increase the risk associated with study participation or IP administration (eg; history intracranial hemorrhage).
  • Chronic renal insufficiency as defined by an estimated glomerular filtration rate (eGFR) < 45 mL/min/1.73m2 via Chronic Kidney Disease Epidemiology Collaboration (CKD-epi) at screening or requires dialytic therapy or hemofiltration.
  • Hemoglobin (Hgb) concentration < 8.5 g/dL at screening.
  • Evidence of active HIV, Hepatitis B or Hepatitis C, or tuberculosis (TB) infections.
  • Inhaled prostanoids; these drugs may be withdrawn ≥ 4 weeks prior to or at screening, if clinically indicated.
  • Use of oral anticoagulants (ie, warfarin or NOAC) at randomization.
  • Requirement of intravenous (IV) inotropes (ie, levosimendan, dopamine, dobutamine, milrinone, norepinephrine) other than an IV prostanoid within 4 weeks of screening.
  • Prior participation in GB002 studies and/or prior treatment with GB002.
  • Currently participating in or has participated in a study of an investigational agent or has used an investigational device for the treatment of PAH within 4 weeks prior to screening.
  • Current use of inhaled tobacco and/or inhaled marijuana.
  • Current alcohol use disorder as defined by DSM-5 and/or positive test for drugs of abuse (amphetamines, methamphetamines, cocaine, phencyclidine [PCP]).
  • Subjects with a history of severe milk protein allergy. In addition, subjects with known intolerance or hypersensitivity to lactose who, in the opinion of the investigator, may experience severe symptoms following the ingestion of lactose.
  • QTcF of > 480 msec recorded on a screening or baseline ECG or receiving concurrent treatment with medications that prolong QT interval.
  • Have any other condition or reason that, in the opinion of the Investigator or Medical Monitor, would prohibit the subject from participating in the study.
  • NOTE: Additional inclusion/exclusion criteria may apply, per protocol.

Trial locations and contacts

63 sites in 11 countries.

63 sites in 11 countries

United States36 sites
  • University of New Mexico Health Sciences Center

    Albuquerque, New Mexico, 87131

  • Central Florida Pulmonary Group, PA

    Altamonte Springs, Florida, 32701

  • University of Michigan

    Ann Arbor, Michigan, 48109

  • The Emory Clinic

    Atlanta, Georgia, 30322

  • Tufts Medical Center

    Boston, Massachusetts, 02111

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

  • University of Cincinnati Medical Center

    Cincinnati, Ohio, 45219

  • Cleveland Clinic Foundation

    Cleveland, Ohio, 44124

  • The Ohio State University Wexner Medical Center

    Columbus, Ohio, 43210

  • UT Southwestern Medical Center

    Dallas, Texas, 75390

  • Houston Methodist Hospital

    Houston, Texas, 77030

  • University of Iowa Hospitals & Clinics

    Iowa City, Iowa, 52242

  • Mayo Clinic Jacksonville

    Jacksonville, Florida, 32224

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

  • Dept of Veterans Affairs Greater Los Angeles Healthcare System

    Los Angeles, California, 90073

  • Kentuckiana Pulmonary Research Center

    Louisville, Kentucky, 40202

  • Medical College of Wisconsin - Froedtert Hospital

    Milwaukee, Wisconsin, 53226

  • University of Minnesota

    Minneapolis, Minnesota, 55455

  • NYU Langone Health

    New York, New York, 10016

  • New York Presbyterian Hospital - Weill Cornell Medicine

    New York, New York, 10065

  • INTEGRIS Baptist Medical Center, Inc.

    Oklahoma City, Oklahoma, 73112

  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198

  • Perelman Center for Advanced Medicine

    Philadelphia, Pennsylvania, 19104

  • Pulmonary Associates, PA

    Phoenix, Arizona, 85032

  • Allegheny General Hospital

    Pittsburgh, Pennsylvania, 15212

  • Oregon Health & Science University

    Portland, Oregon, 97239

  • Mayo Clinic

    Rochester, Minnesota, 55905

  • University of Rochester Medical Center

    Rochester, New York, 14642

  • UC Davis Medical Center

    Sacramento, California, 95817

  • University of Utah Health

    Salt Lake City, Utah, 84132

  • The University of California San Francisco

    San Francisco, California, 94143

  • Medical Corporation

    Santa Barbara, California, 93105

  • Washington University School of Medicine

    St Louis, Missouri, 63110

  • Stanford Healthcare

    Stanford, California, 94305

  • The Lundquist Institute of Biomedical Innovation at Harbor-UCLA Medical Center

    Torrance, California, 90502

  • Cleveland Clinic Florida

    Weston, Florida, 33331

Other trials in United States

Germany6 sites
  • Herz- und Diabeteszentrum NRW

    Bad Oeynhausen, 32545

  • DRK Kliniken Berlin - Westend

    Berlin, 14050

  • Universitätsklinikum Giessen / Marburg

    Giessen, 35392

  • Medizinische Hochschule Hannover

    Hanover, 30625

  • Zentrum fur Pulmonale Hypertonie Thoraxklinik-Heidelberg gGmbH

    Heidelberg, 69126

  • Universitatsklinikum Regensburg

    Regensburg, 93053

Other trials in Germany

Australia4 sites
  • St Vincent's Hospital

    Darlinghurst, New South Wales, 2010

  • St Vincent's Hospital Melbourne

    Fitzroy, 3065

  • Royal Hobart Hospital

    Hobart, TAS 7000

  • Westmead Hospital

    Westmead, NSW 2145

Other trials in Australia

Canada3 sites
  • Peter Lougheed Centre

    Calgary, T1Y 6J4

  • London Health Sciences Centre - Victoria Hospital

    London, N6A 5W9

  • Sir Mortimer B Davis Jewish General Hospital

    Montreal, Quebec, H3T 1E2

Other trials in Canada

Spain3 sites
  • Hospital Universitario Vall d'Hebron

    Barcelona, 08035

  • Hospital Universitario 12 de Octubre

    Madrid, 28041

  • Hospital Universitario Marqués de Valdecilla

    Santander, 39008

Other trials in Spain

Austria2 sites
  • LKH - Univ. Klinikum Graz - Universitatsklinik fur Innere Medizin

    Graz, 8036

  • Medizinische Universitat Wien - Universitatsklinik fur Innere Medizin II

    Vienna, 1090

Other trials in Austria

Belgium2 sites
  • Erasme University Hospital

    Brussels, 1070

  • University Hospital of Leuven

    Leuven, 3000

Other trials in Belgium

France2 sites
  • AP-HP, Hopital de Bicetre

    Le Kremlin-Bicêtre, 94270

  • CHU de Montpellier - Hopital Arnaud de Villeneuve

    Montpellier, 34295

Other trials in France

Serbia2 sites
  • University Clinical Centre of Serbia

    Belgrade, 11000

  • Institute for Pulmonary Diseases of Vojvodina

    Kamenitz, 21204

Other trials in Serbia

United Kingdom2 sites
  • Royal Papworth Hospital NHS Foundation

    Cambridge, CB2 0AY

  • Imperial College Healthcare NHS Trust - Hammersmith Medicines Research Limited

    London, W12 OHS

Other trials in United Kingdom

Czechia1 site
  • Všeobecná fakultní nemocnice v Praze

    Prague, 128 08

Other trials in Czechia

About this study

Official title: A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Multi-Center Clinical Study to Evaluate the Efficacy and Safety of Oral Inhalation of GB002 for the Treatment of WHO Group 1 Pulmonary Arterial Hypertension (PAH)

The primary objective for this trial is to determine the effect of GB002 (seralutinib) on improving pulmonary hemodynamics in subjects with World Health Organization (WHO) Group 1 PAH who are Functional Class (FC) II and III. The secondary objective for this trial is to determine the effect of GB002 (seralutinib) on improving exercise capacity in this population.

Being tested
GB002 (seralutinib), Placebo, Generic Dry Powder Inhaler
Keywords
seralutinib
Medical subject headings
Familial Primary Pulmonary Hypertension

What participants receive

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

  • GB002 (seralutinib)Drug

    Capsule containing GB002 (seralutinib)

  • PlaceboDrug

    Matching capsule containing placebo

  • Generic Dry Powder InhalerDevice

    Generic dry powder inhaler for GB002 (seralutinib) or placebo delivery

Study groups in NCT04456998
Study groupRoleWhat they receive
GB002 (seralutinib)ExperimentalGB002 (seralutinib) inhaled orally twice per day (BID) for 24 weeks
Receives: Drug: GB002 (seralutinib); Device: Generic Dry Powder Inhaler
PlaceboPlacebo comparatorPlacebo inhaled orally BID for 24 weeks
Receives: Drug: Placebo; Device: Generic Dry Powder Inhaler

What is being measured

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

  1. Change From Baseline to Week 24 in Pulmonary Vascular Resistance (PVR)

    PVR was evaluated using right heart catheterization (RHC).

    Measured: Baseline, Week 24

Secondary outcomes (1)
  1. Change From Baseline to Week 24 in Distance Achieved on the Six-Minute Walk Test (6MWT)

    The 6MWT measures the distance a participant is able to walk quickly on a flat, hard surface in a period of 6 minutes.

    Measured: Baseline, Week 24

Timeline

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

  1. First posted7 Jul 2020
  2. Study start12 Nov 2020
  3. Primary completion17 Oct 2022
  4. Study completion1 Nov 2022

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04456998
Sponsor's protocol ID
GB002-2101
Status last verified
Oct 2023
First submitted
30 Jun 2020
Last updated
7 Nov 2023
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Frantz RP, McLaughlin VV, Sahay S, Escribano Subias P, Zolty RL, Benza RL, Channick RN, Chin KM, Hemnes AR, Howard LS, Sitbon O, Vachiery JL, Zamanian RT, Cravets M, Roscigno RF, Mottola D, Osterhout R, Bruey JM, Elman E, Tompkins CA, Parsley E, Aranda R, Zisman LS, Ghofrani HA; TORREY Study Investigators. Seralutinib in adults with pulmonary arterial hypertension (TORREY): a randomised, double-blind, placebo-controlled phase 2 trial. Lancet Respir Med. 2024 Jul;12(7):523-534. doi: 10.1016/S2213-2600(24)00072-9. Epub 2024 May 2.

    PubMed 38705167

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GB002 (seralutinib) and Generic Dry Powder Inhaler in people with Pulmonary Artery Hypertension, run by GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc. at 63 sites in 11 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 16 inclusion and 27 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 7 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 63 sites in United States, Germany, Australia, Canada, Spain and 6 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 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 7 Nov 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?

Change From Baseline to Week 24 in Pulmonary Vascular Resistance (PVR) (time frame: Baseline, Week 24). 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 NCT04456998, which also lists 1 linked publication.

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 7 Nov 2023.

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