Study to Evaluate ARINA-1 in the Prevention of Bronchiolitis Obliterans Progression in Participants With Bilateral Lung Transplant

December 8, 2025 updated by: Renovion, Inc.

A Phase 3, Open-label, Randomized, Standard of Care-controlled, Parallel Study Arm Study to Demonstrate Efficacy and Safety of ARINA-1 in the Prevention of Bronchiolitis Obliterans Syndrome (BOS) Progression in Participants With a Bilateral Lung Transplant

The goal of this Phase 3 clinical trial is to compare ARINA-1 (a nebulized immunomodulatory agent) plus Standard of Care vs Standard of Care alone. The main question it aims to answer are:

  • Evaluate the effectiveness of ARINA-1 in preventing bronchiolitis obliterans syndrome (BOS) progression in participants with a bilateral lung transplant
  • To evaluate the effectiveness of ARINA-1 on improving quality of life decline and preventing or delaying the use of augmented immunosuppression in participants with pre-BOS relative to SOC.

Participants will have clinic visits at screening, randomization (day 1) and weeks 4, 12, 18, and 24. After week 24, participants will have clinic visits at weeks 32, 40, and 48.

Participants will also have a telehealth visit on day 2 and phone calls to assess adverse events (AEs), serious adverse events (SAEs), and review patient education will occur during weeks 5, 8, 36, and 44.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

100

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Withdrawn
        • Dignity Health - St. Joseph's Hospital and Medical Center
    • California
      • Los Angeles, California, United States, 90095
        • Recruiting
        • University of California Los Angeles School of Medicine
        • Contact:
        • Principal Investigator:
          • Sam Weigt, MD
      • San Diego, California, United States, 92103
        • Recruiting
        • University of California San Diego Health
        • Contact:
        • Principal Investigator:
          • Kamyar Afshar, MD
    • Florida
      • Orlando, Florida, United States, 32803
        • Recruiting
        • Advent Health
        • Contact:
        • Contact:
          • 4076094574
        • Principal Investigator:
          • Suresh Manickavel, MD
      • Tampa, Florida, United States, 33606
        • Recruiting
        • University of South Florida
        • Contact:
        • Principal Investigator:
          • Muhammed Qureshi, MD
    • Illinois
      • Maywood, Illinois, United States, 60153
        • Recruiting
        • Loyola University Medical Center
        • Principal Investigator:
          • Daniel Dilling, MD
        • Contact:
    • Iowa
      • Iowa City, Iowa, United States, 52242
        • Recruiting
        • University of Iowa Hospital
        • Principal Investigator:
          • Tahuanty Pena, MD
        • Contact:
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Recruiting
        • Johns Hopkins Hospital
        • Contact:
        • Principal Investigator:
          • Christian Merlo, MD
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Withdrawn
        • University of Minnesota Medical School
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Recruiting
        • Washington University School of Medicine
        • Contact:
        • Principal Investigator:
          • Chad Witt, MD
    • New York
      • New York, New York, United States, 10032
        • Recruiting
        • Columbia University Irving Medical Center
        • Principal Investigator:
          • Selim Arcasoy, MD
        • Contact:
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Recruiting
        • Cleveland Clinic
        • Principal Investigator:
          • Marie Budev, MD
        • Contact:
      • Columbus, Ohio, United States, 43221
        • Recruiting
        • The Ohio State University Wexner Medical CEnter
        • Principal Investigator:
          • Justin Rosenheck, MD
        • Contact:
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19122
        • Not yet recruiting
        • Temple University Hospital
        • Principal Investigator:
          • Rachel Criner, MD
    • South Carolina
      • Charleston, South Carolina, United States, 29452
        • Recruiting
        • Medical University of South Carolina
        • Principal Investigator:
          • Tim Whelan, MD
        • Contact:
    • Texas
      • Dallas, Texas, United States, 75246
      • Dallas, Texas, United States, 45390
      • Houston, Texas, United States, 77030
        • Recruiting
        • Houston Methodist Hospital
        • Principal Investigator:
          • Howard Huang, MD
        • Contact:
      • Houston, Texas, United States, 77030
        • Recruiting
        • Baylor St. Luke's Medical Center
        • Contact:
        • Principal Investigator:
          • Prangthip Charoenpong, MD, MPH
    • Virginia
      • Falls Church, Virginia, United States, 22042
        • Recruiting
        • Inova Fairfax Hospital
        • Contact:
        • Principal Investigator:
          • Shambhu Aryal, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Bilateral lung transplant >12 months from the time of Visit 1 / Randomization
  2. Age 18-75 years old at the time of consent
  3. Routinely followed at enrolling site
  4. Willing and able to comply with visit schedule and at-home requirements
  5. 10-24% decrease in FEV1 from the post-transplant baseline within the last 12 months.
  6. Capable of giving informed consent
  7. On a stable maintenance regimen of azithromycin for >4 weeks prior to the Screening Visit
  8. On a stable 2-agent or 3-agent immunosuppression regimen that includes a steroid, a calcineurin inhibitor (CNI), and, optionally, a cell cycle inhibitor (e.g., mycophenolate, azathioprine) >4 weeks prior to Screening
  9. If a woman of childbearing potential (WOCBP), must agree to use a reliable method of birth control for the entire duration of the study.

Exclusion Criteria:

  1. Positive urine pregnancy test at screening and baseline visit
  2. Diagnosis of active congestive heart failure or symptomatic coronary artery disease > grade 3 based on the New York Heart Association Functional Classification (NYHA) criteria
  3. Restrictive allograft syndrome (RAS) defined by radiographic interstitial or alveolar opacities on chest X-ray or CT scan that are consistent with RAS
  4. Have advanced BOS, defined by >24% decrease in FEV1 in post-transplant baseline
  5. A diagnosis of probable antibody-mediated rejection (AMR) <12 months prior to the baseline visit
  6. Donor-specific antibodies (DSA) identified <6 months prior to the baseline visit. *The presence of DSA >6 months from the baseline visit is acceptable for enrollment into the study.
  7. Unresolved diffuse alveolar damage
  8. Receiving mechanical ventilation
  9. Chronic kidney disease stage IV or higher, including on dialysis
  10. Initiating a new maintenance therapy or changing immunosuppression maintenance therapy (e.g., changing tacrolimus to cyclosporine) <30 days prior to the baseline visit.
  11. Have initiated or changed mTOR maintenance therapy <3 months prior to Clinic Visit 1 (mTOR use for >3 months is allowed)
  12. Initiating or changing antibiotic (including azithromycin), antiviral, or antifungal therapy <14 days prior to the baseline visit.
  13. Use of alemtuzumab <6 months prior to the baseline visit
  14. Use of anti-thymocyte therapies (e.g., anti-thymocyte globulin) or photopheresis <90 days prior to the Screening Visit. Prior use of Trikafta (elexacaftor, ivacaftor, and tezacaftor is allowed as long as the participant has been on stable dose for >90 days prior to the Screening Visit.
  15. Initiating a multivitamin or other supplement (inhaled, oral, or IV) containing vitamin C, glutathione, or N-acetylcysteine <90 days prior to the baseline visit
  16. Significant unstable comorbidities, in the opinion of the site investigator
  17. Allery or previous adverse reaction to azithromycin
  18. A diagnosis of dynamic collapse / tracheobrochomalacia <90 days of the baseline visit.
  19. Subjects currently participating in, or who have participated in an interventional (drug or device) clinical study <30 days of the baseline visit.
  20. Have been diagnosed with ARAD within 6 weeks of the Screening Visit.
  21. Have used belatacept <6 months prior to Clinic Visit 1
  22. Have had an initial treatment of bronchial stents or cryotherapy within 12 months of the Screening Visit, or had bronchial stents removed within the last 3 months of the Screening Visit.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: ARINA-1 plus standard of care
ARINA-1 (88 mg/mL ascorbic acid, ASC; 150 mg/mL reduced glutathione, GSH); fixed dose, 4 mL solution inhaled twice daily via nebulization plus standard 3-therapy immunosuppression regimen and azithromycin
ARINA-1 (88 mg/mL ascorbic acid, ASC; 150 mg/mL reduced glutathione, GSH)
Other: Standard of care only
Standard 3-therapy immunosuppression regimen and azithromycin
Standard 3-therapy immunosuppression regimen and azithromycin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage change from baseline in FEV1 (%ΔFEV1)
Time Frame: 24 weeks
Week 24 (mL) - Baseline (mL) = ΔFEV1 (mL) ΔFEV1 (mL) / Baseline (mL) x 100 = %ΔFEV1
24 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage change from baseline of Forced Expiratory Volume in one second (FEV1)
Time Frame: 48 weeks
Week 48 (mL) - Baseline (mL) = ΔFEV1 (mL) ΔFEV1 (mL) / Baseline (mL) x 100 = %ΔFEV1
48 weeks
Percentage change from baseline of Forced Vital Capacity (FVC)
Time Frame: 24 weeks
24 weeks
Percentage change from baseline of FVC
Time Frame: 48 weeks
48 weeks
Percentage change from baseline of FEF25-75%
Time Frame: 24 weeks
24 weeks
Percentage change from baseline of FEF25-75%
Time Frame: 48 weeks
48 weeks
Number of participants in each arm with augmented immunosuppression
Time Frame: 24 weeks
number
24 weeks
Number of participants in each arm with augmented immunosuppression
Time Frame: 48 weeks
48 weeks
Time to initiation of augmented immunosuppression
Time Frame: over the duration of the 48 week trial
Length of time to when participant requires a change in their immunosuppression regimen
over the duration of the 48 week trial
Change from baseline in Saint George's Respiratory Questionnaire total score
Time Frame: 24 weeks
quality of life questionnaire, total score of 0 to 100, higher score = more limitations
24 weeks
Change from baseline in Saint George's Respiratory Questionnaire total score
Time Frame: 48 weeks
quality of life questionnaire, total score of 0 to 100, higher score = more limitations
48 weeks
Proportion of participants requiring the use of antimicrobial agents to treat a pulmonary infection
Time Frame: 48 weeks
48 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Tim Whelan, MD, Medical University of South Carolina

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 10, 2023

Primary Completion (Estimated)

May 1, 2026

Study Completion (Estimated)

November 1, 2026

Study Registration Dates

First Submitted

December 8, 2022

First Submitted That Met QC Criteria

December 8, 2022

First Posted (Actual)

December 16, 2022

Study Record Updates

Last Update Posted (Estimated)

December 9, 2025

Last Update Submitted That Met QC Criteria

December 8, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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