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New pill could slow deadly lung scarring – early trial underway

NCT ID NCT05571059

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 03, 2026 · Updated 2 times

Summary

This Phase 2 trial tests whether an oral drug called ifetroban can slow the decline in lung function for people with idiopathic pulmonary fibrosis (IPF), a progressive lung-scarring disease. About 128 adults aged 40 and older with IPF will receive either ifetroban or a placebo daily for 52 weeks. The main goal is to see if ifetroban reduces the drop in forced vital capacity (a measure of lung volume) compared to placebo.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
ifetroban
What this could lead to
If it works, this could point toward a new oral treatment to slow lung function decline in people with idiopathic pulmonary fibrosis.
What could go wrong
This is an early Phase 2 trial with only 128 participants, so results may not confirm benefit. The drug may not slow disease progression or could cause side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 128 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2024

Expected to finish

Jan 2028

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Male or female age 40 years or older 2. IPF Diagnosis: 1. Satisfying the 2022 American Thoracic Society/European Respiratory Society /Japanese Respiratory Society/Latin American Thoracic Association (ATS/ERS/JRS/ALAT) diagnostic criteria (Raghu 2022) confirmed by the investigator 2. UIP or probable UIP based on chest HRCT obtained within 2 months of Day 0, or historical lung biopsy consistent with UIP. 3. If receiving antifibrotic therapy, patients must be receiving a stable dose for ≥ 4 months prior to Day 0 and planning to stay on stable background therapy. Allowable antifibrotic therapy includes: pirfenidone, nintedanib, nerandomilast, pirfenidone with nerandomilast, or nintedanib with nerandomilast (combination of pirfenidone and nintedanib not allowed). If not receiving antifibrotic therapy, patients must be naive to each drug (pirfenidone, nintedanib, nerandomilast) or not have received either for at least 4 weeks prior to Day 0 and remain off background therapy with no intention to start or re-start. Changes in antifibrotic therapy are not allowed on study. 4. If receiving monotherapy for the treatment of pulmonary hypertension (e.g. phosphodiesterase 5 inhibitors, endothelin receptor antagonists or inhaled or oral prostanoid therapy), patients must be receiving a stable dose for ≥ 4 weeks prior to Day 0 and planning to remain on a stable dose throughout the study. 5. FVC ≥ 40% of predicted normal according to Global Lung Initiative (GLI) 6. Diffusion Capacity of Carbon Monoxide (DLCO) \[corrected for hemoglobin\] ≥ 25% to \<80% of predicted normal Exclusion Criteria: 1. Relevant airways obstruction (pre-bronchodilator Forced Expiratory Volume in one second to forced vital capacity ratio less than 70% (FEV1/FVC \< 0.7)) 2. In the opinion of the Investigator, other clinically significant pulmonary abnormalities. 3. Known significant PAH, defined as previous clinical or echocardiographic evidence of significant right heart failure, history of right heart catheterization showing a cardiac index \< 2 L/min/m2, or PAH requiring combination of PAH-specific therapies or any PAH parenteral therapy. 4. Emphysema ≥ 50% on HRCT assessed by the investigator, or the extent of emphysema is greater than the extent of fibrosis according to reported results from the most recent chest HRCT. 5. Acute IPF exacerbation within 6 weeks prior to screening and/or during the screening period (investigator-determined). 6. ILD associated with other known causes 7. Lower respiratory tract infection requiring antibiotics within 4 weeks prior to Day 0 and/or during the screening period. 8. Major surgery (major according to the investigator's assessment) performed within six weeks prior to Day 0 or planned during the course of the trial. (Being on a transplant list is allowed). 9. AST or ALT \> 1.5 x ULN, Bilirubin \> 1.5 x ULN, Creatinine clearance \< 30 mL/min calculated by Cockcroft-Gault formula. 10. Underlying chronic liver disease (Child Pugh A, B or C hepatic impairment). 11. Cardiovascular diseases, any of the following: 1. Severe hypertension, uncontrolled despite treatment (≥160/100 mmHg) 2. Myocardial infarction within 6 months of Day 0 3. Unstable cardiac angina 12. Bleeding risk, any of the following: 1. Known genetic predisposition to bleeding. 2. Patients who require: i. Fibrinolysis, full-dose therapeutic anticoagulation (e.g. vitamin K antagonists, direct thrombin inhibitors, direct oral anticoagulants, heparin, hirudin) ii. High dose antiplatelet therapy (\> 325 mg/day of aspirin; \> 75 mg/day ticlodipine or clopidogrel; any dose of other 2b3a anti-platelet agents) 13. History of hemorrhagic central nervous system (CNS) event within 12 months of Day 0 14. Any of the following within 3 months of Day 0: 1. Hemoptysis or hematuria 2. Active gastro-intestinal (GI) bleeding needing hospitalization/intervention or peptic ulcer disease 15. Coagulation parameters: International normalized ratio (INR) \>2, prolongation of prothrombin time (PT) and activated partial thromboplastin time (aPTT) by \>1.5 x ULN Note: Prophylactic low dose heparin or heparin flush as needed for maintenance of an indwelling intravenous device (e.g. less than or equal to enoxaparin 40 mg subcutaneously (SC) per day or heparin 5000 units SC every eight hours), low-dose FXa inhibitors (rivaroxaban/apixaban: 2.5mg twice daily (max 5mg/day), edoxaban: 15mg/day), as well as prophylactic use of antiplatelet therapy (e.g. acetyl salicylic acid \[ASA\] up to 325 mg/day, or clopidogrel at 75 mg/day, or equivalent doses of other antiplatelet therapy) are not prohibited. 16. History of thrombotic event (including stroke and transient ischemic attack) within 12 months of Day 0 17. Use of disease-modifying antirheumatic drugs, B-cell depleting therapies or immunosuppressive medications, within 6 months of Day 0. 18. Use of systemic corticosteroids equivalent to prednisone \>15mg/day within 2 weeks of Day 0. 19. Simultaneous use of pirfenidone and nintedanib at screening. 20. Other disease that may interfere with testing procedures or in the judgment of the Investigator may interfere with trial participation or may put the patient at risk when participating in this trial. 21. Any documented active or suspected malignancy within 5 years prior to Day 0, except appropriately treated basal cell carcinoma of the skin, in situ squamous cell carcinoma of the skin or "under surveillance" prostate cancer. 22. Evidence of active infection (chronic or acute) based on clinical exam or laboratory findings. 23. The patient has a confirmed infection with Severe Acute Respiratory Syndrome- Coronvirus-2 (SARS-CoV-2) within the four weeks prior to Day 0 or during the screening period. 24. Women who are pregnant, nursing, or who plan to become pregnant while in the trial. 25. Women of childbearing potential not willing or able to use highly effective methods of birth control per ICH M3 (R2) that result in a low failure rate of less than 1% per year when used consistently for 28 days prior to and three months after Investigational Medicinal Product (IMP) administration. Note: A woman is considered of childbearing potential, i.e. fertile, following menarche and until becoming post-menopausal unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy 26. In the opinion of the Investigator, active alcohol or drug abuse. 27. Patients not able to understand or follow trial procedures including completion of self- administered questionnaires without help.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    18 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Avera Research Institute

    RECRUITING

    Sioux Falls, South Dakota, 57108, United States

  • Baylor University Medical Center

    RECRUITING

    Dallas, Texas, 75246, United States

  • Beaumont Hospital, Royal Oak

    RECRUITING

    Royal Oak, Michigan, 48073, United States

  • Bend Memorial Hospital

    RECRUITING

    Bend, Oregon, 97701, United States

  • Biosolutions Clinical Research

    ACTIVE_NOT_RECRUITING

    La Mesa, California, 91942, United States

  • Icahn School of Medicine at Mount Sinai

    RECRUITING

    New York, New York, 10029, United States

  • Indiana University Health

    RECRUITING

    Indianapolis, Indiana, 46202, United States

  • Mayo Clinic Jacksonville

    RECRUITING

    Jacksonville, Florida, 32224, United States

  • Miami VA Health System

    RECRUITING

    Miami, Florida, 33125, United States

  • Northwestern Medicine

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Premier Pulmonary Critical Care and Sleep Medicine

    RECRUITING

    Denison, Texas, 75020, United States

  • Pulmonary & Sleep Specialists

    ACTIVE_NOT_RECRUITING

    Dickson, Tennessee, 37055, United States

  • Temple University Hospital

    RECRUITING

    Philadelphia, Pennsylvania, 19140, United States

  • UConn Health

    RECRUITING

    Farmington, Connecticut, 06030, United States

  • UNC Chapel Hill

    RECRUITING

    Chapel Hill, North Carolina, 27514, United States

  • UW Health University Hospital

    RECRUITING

    Madison, Wisconsin, 53792, United States

  • University of California San Francisco

    RECRUITING

    San Francisco, California, 94143, United States

  • University of Kansas

    RECRUITING

    Kansas City, Kansas, 66160, United States

  • University of Louisville

    RECRUITING

    Louisville, Kentucky, 40202, United States

  • University of Rochester

    RECRUITING

    Rochester, New York, 14642, United States

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