Skip to content

Idiopathic Pulmonary Fibrosis (IPF)-Related Chronic Cough Reduction With Nalbuphine Extended-Release (NAL ER) Tablets

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Nalbuphine Extended-Release Tablets for the Treatment of Chronic Cough in Participants With Idiopathic Pulmonary Fibrosis

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07671911
Acronym
OCEAN-1
Enrollment
306
Registered
2026-06-26
Start date
2026-06-29
Completion date
2028-07-01
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Idiopathic Pulmonary Fibrosis

Brief summary

The primary purpose is to evaluate the safety and efficacy of NAL ER for the treatment of chronic cough in participants with Idiopathic Pulmonary Fibrosis (IPF).

Interventions

DRUGNAL ER

Oral tablets

DRUGPlacebo

Oral tablets

Sponsors

Trevi Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of IPF as determined by the Investigator based on American Thoracic Society (ATS)/European Respiratory Society (ERS)/Japanese Respiratory Society (JRS)/Latin American Thoracic Society (ALAT) clinical practice guidelines. * Chronic cough for ≥8 weeks prior to Screening. * PGI-Severity Score ≥ 2 at Screening. * Forced vital capacity (FVC) ≥40 percent (%) of predicted at Screening. * Diffusing capacity for carbon monoxide (DLCO) ≥25% of predicted during Screening or within 12 weeks prior to Screening. * Participants who are currently taking antifibrotic medication (nintedanib, pirfenidone, nerandomilast) approved for IPF should be on a stable dose for at least 6 weeks prior to the Baseline Visit.

Exclusion criteria

* Clinical diagnosis or clinical suspicion of an upper or lower respiratory tract infection in the last 8 weeks prior to the Screening visit or during Screening. * Hospitalization for any respiratory illness (including acute exacerbation of IPF) within 2 months prior to Screening. Note: Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frame
Relative Change from Baseline in 24-hour Cough Frequency at Week 26Baseline, Week 26

Secondary

MeasureTime frame
Absolute Change from Baseline in the Cough Severity Numerical Rating Scale (CS-NRS) at Week 26Baseline, Week 26
Relative Change from Baseline in 24-hour Cough Frequency at Week 6Baseline, Week 6
Percentage of Participants Achieving ≥50% Reduction from Baseline in 24-hour Cough Frequency at Week 26Baseline, Week 26
Absolute Change from Baseline in the Evaluating Respiratory Symptoms in Idiopathic Pulmonary Fibrosis (E:RS-IPF) Cough Domain at Week 26Baseline, Week 26
Percentage of Participants Achieving a ≥3-point Improvement from Baseline in CS-NRS at Week 26Baseline, Week 26
Absolute Change from Baseline in the E:RS IPF Breathlessness Domain at Week 26Baseline, Week 26
Relative Change from Baseline in 24-hour Cough FrequencyBaseline up to Week 54
Absolute Change from Baseline in 24-hour Cough FrequencyBaseline up to Week 54
Percentage of Participants Achieving ≥30%, ≥50% and ≥75% Reduction from Baseline in 24-Hour Cough FrequencyBaseline up to Week 54
Absolute Change from Baseline in the E-RS:IPF Cough DomainBaseline up to Week 54
Absolute Change from Baseline in the E-RS:IPF Total Score and Domain Scores (IPF-Breathlessness, IPF-Cough, IPF-Sputum, and IPF-Chest Symptoms)Baseline up to Week 54
Absolute Change from Baseline in the CS-NRSBaseline up to Week 54
Percentage of Participants Achieving a ≥3-Point Improvement from Baseline in CS-NRSBaseline up to Week 54
Absolute Change from Baseline in the Leicester Cough Questionnaire (LCQ) Total ScoresBaseline up to Week 54
Percentage of Participants Achieving a 1.3-Point Increase (Improvement) from Baseline in LCQ Total ScoreBaseline up to Week 54
Absolute Change from Baseline in Each LCQ Domain Score (Physical, Psychological, Social)Baseline up to Week 54
Change from Baseline in the European Quality of Life 5 Dimensions 5 Level (EQ-5D-5L) at Week 26Baseline, Week 26
Relative Change from Baseline in Awake Cough FrequencyBaseline up to Week 54
Relative Change from Baseline in Sleep Cough FrequencyBaseline up to Week 54
Absolute Change from Baseline in the Patient Global Impression of Severity (PGI-S) Cough ScoreBaseline up to Week 54
Absolute Change from Baseline in the Patient Global Impression of Change (PGI-C) Cough ScoreBaseline up to Week 54
Percentage of Participants with Improvements by ≥1 and ≥2 Categories from Baseline on the PGI-S CoughBaseline up to Week 54
Safety and Tolerability as Assessed by Number of Participants with Treatment Emergent Adverse Events (TEAEs)Up to Week 57

Countries

United States

Contacts

CONTACTPaula Buckley
Paula.Buckley@trevitherapeutics.com(203) 304-2499
STUDY_DIRECTORChief Development Officer

Trevi Therapeutics

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026