NCT06325696

Brief Summary

Background: Interstitial lung disease affects the tissues that aid the transfer of oxygen and carbon dioxide between the air and the bloodstream. The disease can cause fibrosis, a thickening and scarring of lung tissue. Fibrosis often continues getting worse, and most people with this disease die in 3 to 5 years. Objective: To test a study drug (hymecromone) in people with interstitial lung disease or lung fibrosis. Eligibility: People aged 18 years and older with interstitial lung disease or lung fibrosis. Design: Participants will have at least 7 clinic visits over 5 months. Participants will have screening and baseline visits. They will have blood tests and tests of their heart function. They will give a sputum sample. Other tests will include: Spirometry: Participants will breathe in and out through a mouthpiece to measure how much air they can hold in their lungs and how hard they can breathe. Diffusion capacity of lungs for carbon monoxide: Participants will breathe in a gas that contains a small amount of carbon monoxide. Then they will breathe through a mouthpiece. This test measures how well oxygen moves from the air into the blood. Resting energy expenditure. Participants will lie still for 30 minutes with a clear dome over their head. This test measures the calories their body burns at rest. 6-minute walk test. Participants will walk at their normal pace for 6 minutes. Their vital signs and blood oxygen levels will be checked. Hymecromone is a tablet taken by mouth. Participants will take 2 tablets every morning and 2 tablets every night for 12 weeks. Tests will be repeated at study visits.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
37

participants targeted

Target at P25-P50 for phase_2

Timeline
20mo left

Started May 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress38%
May 2025Dec 2027

First Submitted

Initial submission to the registry

March 21, 2024

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 22, 2024

Completed
1.1 years until next milestone

Study Start

First participant enrolled

May 5, 2025

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

February 27, 2026

Status Verified

February 23, 2026

Enrollment Period

2.7 years

First QC Date

March 21, 2024

Last Update Submit

February 25, 2026

Conditions

Keywords

Pulmonary FibrosisLung diseaseHyaluronanDrug

Outcome Measures

Primary Outcomes (1)

  • To evaluate the efficacy of H01 in reducing serum hyaluronan levels in participants with progressive ILD

    Serum HA levels before and after initiation of treatment with H01 over a period of 12 weeks

Secondary Outcomes (4)

  • Evaluate the safety and tolerability of oral H01 in participants with progressive ILD.

    On-going throughout study; each study visit

  • Evaluate the change in clinical and functional measures in participants with progressive ILD treated with H01.

    On-going throughout study; each study visit

  • Evaluate biomarkers of fibrosis in participants with progressive ILD treated with H01.

    On-going throughout study; each study visit

  • Evaluate pharmacokinetic changes from baseline in participants with progressive ILD treated with H01.

    On-going throughout study; each study visit

Study Arms (1)

Treatment

EXPERIMENTAL

Adults, male and female with a diagnosis of interstitial lung disease, take 2 doses of 400 mg H01, morning and evening

Drug: hymecromone

Interventions

400 mg

Treatment

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • In order to be eligible to participate in this study, an individual must meet all of the following criteria:
  • Ability of subject to understand, and the willingness to sign a written informed consent document and comply with requirements of the study
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Male or Female participants ages \>18 years
  • MD diagnosis of Idiopathic Pulmonary Fibrosis or other progressive ILD as defined previously
  • DLCO\>30% and FVC\>45%
  • Subjects in reproductive age who are heterosexually active must use an acceptable method of contraception: condoms (male or female) with or without a spermicidal agent, diaphragm or cervical cap with spermicide, IUD, or Hormone-based contraceptive
  • Agreement to adhere to Lifestyle Considerations throughout study duration

You may not qualify if:

  • An individual who meets any of the following criteria will be excluded from participation in this study:
  • Active on lung transplantation list
  • On supplemental oxygen at rest
  • Evidence of an acute respiratory infection or exacerbation of pulmonary fibrosis
  • Known diagnosis of celiac disease or wheat or gluten allergies
  • Cirrhosis or active viral or non-viral hepatitis: Bilirubin, AST and ALT values higher than twice the upper range of normal, or a Child-Pugh score of 7 or more
  • Subjects with history of active Inflammatory Bowel Disease, dysphagia, achalasia, or difficulty swallowing capsules, tablets or pills
  • Subjects with significant renal impairment defined as eGFR lower than 40 ml/min.
  • Subjects with a baseline corrected Fridericia's QT interval (QTcF) \>450ms or baseline ECG abnormalities which, in the opinion of the study physician, are clinically significant and would place the participant at increased risk for adverse effects.
  • Subjects with ongoing alcohol or illegal drug use disorder
  • Subjects who are pregnant, lactating or attempting to conceive
  • Participants able to become pregnant (have not completed menopause, had a hysterectomy and/or both tubes and/or both ovaries removed) must use effective birth control methods to try and not become pregnant while participant in this study. Methods include (a) partner vasectomy, (b) bilateral tubal ligation, (c) intrauterine devices (IUDs), (d) hormonal implants (such as Implanon), or (e) other hormonal methods (birth control pills, injections, patches, vaginal rings).
  • Male participants able to father children with a partner able to become pregnant must agree to use effective birth control (listed above) to participate in this study.
  • Known allergy to hymecromone or any component thereof
  • Chronic therapy with medications that are known potent human UDP-glucuronosyltransferase inhibitors: canagliflozin, temazepam, tacrolimus.
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

NIEHS Clinical Research Unit (CRU)

Research Triangle Park, North Carolina, 27709, United States

RECRUITING

Related Publications (4)

  • Garantziotis S, Steele MP, Schwartz DA. Pulmonary fibrosis: thinking outside of the lung. J Clin Invest. 2004 Aug;114(3):319-21. doi: 10.1172/JCI22497.

    PMID: 15286797BACKGROUND
  • Raghu G, Chen SY, Yeh WS, Maroni B, Li Q, Lee YC, Collard HR. Idiopathic pulmonary fibrosis in US Medicare beneficiaries aged 65 years and older: incidence, prevalence, and survival, 2001-11. Lancet Respir Med. 2014 Jul;2(7):566-72. doi: 10.1016/S2213-2600(14)70101-8. Epub 2014 May 27.

    PMID: 24875841BACKGROUND
  • Navaratnam V, Fleming KM, West J, Smith CJ, Jenkins RG, Fogarty A, Hubbard RB. The rising incidence of idiopathic pulmonary fibrosis in the U.K. Thorax. 2011 Jun;66(6):462-7. doi: 10.1136/thx.2010.148031. Epub 2011 Apr 27.

    PMID: 21525528BACKGROUND
  • Lederer DJ, Martinez FJ. Idiopathic Pulmonary Fibrosis. N Engl J Med. 2018 Aug 23;379(8):797-798. doi: 10.1056/NEJMc1807508. No abstract available.

    PMID: 30134133BACKGROUND

Related Links

MeSH Terms

Conditions

Lung Diseases, InterstitialIdiopathic Pulmonary FibrosisPulmonary FibrosisLung Diseases

Interventions

Hymecromone

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesFibrosisPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

UmbelliferonesCoumarinsBenzopyransPyransHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Stavros Garantziotis, M.D.

    National Institute of Environmental Health Sciences (NIEHS)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

NIEHS Join A Study Recruitment Group

CONTACT

Stavros Garantziotis, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 21, 2024

First Posted

March 22, 2024

Study Start

May 5, 2025

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

February 27, 2026

Record last verified: 2026-02-23

Locations