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Haduvio (nalbuphine ER)

Phase 3

Idiopathic Pulmonary Fibrosis | Small molecule | Respiratory |Trevi Therapeutics, Inc.|Last Updated: Sep 14, 2026

Target and mechanism

ModalitySmall molecule

Also known as Nalbuphine HCl solution, Nalbuphine, Nalbuphine HCL ER, NAL ER, NAL, Nalbuphine ER, nalbuphine HCl ER, nalbuphine

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials4
Total Enrollment522

FDA Designations

No designations recorded

Clinical trial landscape

Haduvio (nalbuphine ER) · 16 trials · 11 indications

Phase 3 1Phase 2 9Phase 1 6
NCT07671911Idiopathic Pulmonary Fibrosis (IPF)-Related Chronic Cough Reduction With Nalbuphine Extended-Release (NAL ER) TabletsIdiopathic Pulmonary Fibrosis
RECRUITING306 Analytics
PHASE3RECRUITING
Idiopathic Pulmonary Fibrosis (IPF)-Related Chronic Cough Reduction With Nalbuphine Extended-Release (NAL ER) Tablets
Idiopathic Pulmonary FibrosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Relative Change from Baseline in 24-hour Cough Frequency at Week 26
Baseline, Week 26
Relative Change From Baseline in 24-hour Cough Frequency at Week 6
Baseline, Week 6
Relative Change From Baseline in 24-hour Cough Frequency at Day 21
Baseline, Day 21

Relative change in 24-hour (combined daytime and nighttime) cough frequency (coughs per hour) from baseline was assessed. Assessment was done using objective digital cough monitoring. Baseline was defined as the last non-missing assessment, prior to the first dose of study drug.

Number of Participants Who Experienced at Least One Treatment Emergent Adverse Events (TEAEs)
Up to Day 72

An AE was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A TEAE was defined as any AE that occurs after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters
Up to Day 72

The clinical laboratory parameters included the urinalysis, hematology, serum chemistry, coagulation and liver function parameters. Clinical significance was determined by the investigator.

Number of Participants With Clinically Significant Changes in Vital Sign Parameters
Up to Day 72

Vital signs measurements included blood pressure, heart rate, and respiration rate, body temperature, pulse oximetry, and weight. Clinical significance was determined by the investigator.

Number of Participants With Clinically Significant Changes in Physical Examination Parameters
Up to Day 72

Physical examination included examination of the following body systems: general appearance, eyes, ears, nose, throat, head and neck, chest and lungs, cardiovascular, abdomen, musculoskeletal, lymphatic, dermatological, neurological, and extremities. Clinical significance was determined by the investigator.

Number of Participants With Clinically Significant Abnormalities in 12-Lead Electrocardiogram (ECG)
Up to Day 72

Changes in ECG data such as heart rate, rhythm, and other clinically significant abnormalities (left ventricular hypertrophy, pathological Q-waves) were measured. Clinical significance was determined by the investigator.

Change From Baseline in Forced Vital Capacity (FVC) at Day 21
Baseline, Day 21

Spirometry was used to assess FVC. It was used to assess pulmonary breathing mechanics.

Subjective Opiate Withdrawal (SOWS) Total Raw Score
Up to Day 72

The SOWS is a self-administered scale for grading opioid withdrawal symptoms and was collected via the study issued e-diary. It consisted of 16 symptoms related to how the participant felt. Each symptom was scored between 0 to 4. The total score ranges between 0 to 64, higher score indicates more severe symptoms.

Daytime Cough Frequency at Baseline
At Baseline

Daytime cough was defined as cough that occurs between the time that the participant is a wake in the 24 hours after the digital cough monitor was applied for use. Assessment was done using objective digital cough monitoring. Baseline was defined as the last available assessment prior to the first Treatment Period 1 IP intake.

Percent Change From Baseline in Daytime Cough Frequency at Day 22
Baseline, Day 22

Daytime cough was defined as cough that occurs between the time that the participant is a wake in the 24 hours after the digital cough monitor was applied for use. Assessment was done using objective digital cough monitoring. Percent change in daytime cough frequency (coughs per hour) from baseline was assessed. Baseline was defined as the last available assessment prior to the first Treatment Period 1 IP intake.

Percentage of Participants With ≥ 4- Point Decrease in 7-day Average Worst Itch - Numerical Rating Scale (WI-NRS) up to Week 14
Baseline up to Week 14

The NRS is a patient related outcome (PRO) instrument, designed to quantify the intensity of worst itching experienced during a 24-hour period, and can be applied and validated either with reference to the average itch or to the absolute worst itch (WI-NRS) over that 24-hour period. WI-NRS is a set of boxes, one for each number, from 0 (no itching) to 10 (worst possible itching). Higher scores indicate worst itching experience. Responder was defined as a participant with a ≥4-point decrease in the 7-day average WI-NRS from baseline to Week 14.

Overall Incidence and Nature of Treatment Emergent Adverse Events (TEAEs)
50 weeks

Incidence of adverse events is calculated based on events observed on or after the date of first dose, where incidence is defined as the number of subjects who reported one or more events of a particular adverse event divided by the number of subjects who received at least one dose of investigational product. Overall incidence is the proportion of subjects who had one or more adverse events of any type and nature pertains to the incidence of individual events coded by MedDRA nomenclature. An additional consideration was to evaluate incidence of adverse events by dose achieved but this was not done as subjects achieved a maximum dose during the study that varied and, per protocol, dosing could be modified per the investigator, during the course of this extension to TR03. In addition, TR03EXT involved a dose titration whereas events could have been reported well before a subject achieved some partciular dose level. Consequently, such a presentation would have been impossible to discern.

Change From Baseline to the Evaluation Visit (Week 10) in Itch on the 0-10 Numerical Rating Scale
Baseline, Week 10

The number of subjects who reported at least a 30% reduction from baseline to Week 10, expressed as a percentage of subjects in the particular arm/group who were evaluated,

Number and Percetage of Participants With Treatment Emergent Adverse Events (TEAEs)
24 weeks

The number of participants reporting at least one TEAE of a particular body system and preferred term are reported (incidence)

Change From Baseline to the Evaluation Period in Itch on the 0-10 Itch Numerical Rating Scale
8 weeks

The evaluation period was defined as the average itch score over weeks 7 and 8 following initiation of treatment. A negative change form baseline (Evaluation Period - Baseline) signified inmprovement.

Relative Bioavailability of NAL ER
Predose and at multiple timepoints postdose (from Day 1 to Day 8)
Respiratory Function and Safety Assessed by Number of Participants With Increase in End Tidal Partial Pressure of Carbon Dioxide by Capnography (PetCO2) of at Least 10 Millimetres of Mercury (mmHg) From Baseline, or PetCO2>55 mmHg, for at Least 1 Minute
Up to Day 6
Respiratory Function and Safety as Assessed by Number of Participants With a Decrease in Blood Oxygen Saturation (SpO2) to <88% for at Least 1 Minute
Up to Day 6
Respiratory Function and Safety as Assessed by Number of Participants With a Decrease in Respiratory Rate (RR) to <6 Breaths per Minute
Up to Day 6
Safety and Tolerability as Assessed by Number of Participants With Treatment Emergent Adverse Events (TEAEs)
Up to Day 51
Maximum Plasma Concentration (Cmax) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Time to Reach Maximum Observed Concentration (Tmax) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Area Under the Concentration-Time Curve From Time Zero to Time of Last Measurable Concentration (AUC0-Tlast) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Area Under the Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Apparent Terminal Rate Constant (λz) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Apparent Terminal Half-Life (t1/2) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Apparent Clearance (CL/F) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Apparent Volume of Distribution (Vz/F) of NAL ER, Pirfenidone, and Nintedanib
Pre-dose and at multiple timepoints post-dose on Days 1 and 6 for Cohorts A1 and B1; on Days 1 and 8 for Cohort A2; on Days 1 and 7 for Cohort B2
Part 1: Maximum Observed Plasma Concentration (Cmax) of NAL ER
Pre-dose and 1.5, 3, 5, 7, 9, 12, 24, 36, 48, and 72 hours post-dose at Day 1 in each dose level
Part 1: Time to Reach Maximum Observed Plasma Concentration (Tmax) of NAL ER
Pre-dose and 1.5, 3, 5, 7, 9, 12, 24, 36, 48, and 72 hours post-dose at Day 1 in each dose level
Part 1: Terminal Elimination Half-Life (T1/2 el) of NAL ER
Pre-dose and 1.5, 3, 5, 7, 9, 12, 24, 36, 48, and 72 hours post-dose at Day 1 in each dose level
Part 1: Area Under the Plasma Concentration-Time Curve From Time Zero to Infinity (AUC0-inf) of NAL ER
Pre-dose and 1.5, 3, 5, 7, 9, 12, 24, 36, 48, and 72 hours post-dose at Day 1 in each dose level
Part 1: Area Under the Plasma Concentration-Time Curve From Time Zero to Last Measurable Concentration (AUC0-t) of NAL ER
Pre-dose and 1.5, 3, 5, 7, 9, 12, 24, 36, 48, and 72 hours post-dose at Day 1 in each dose level
Part 1: Number of Participants Who Experienced at Least One Treatment Emergent Adverse Event (TEAE)
From signing the informed consent form up to Day 4

An AE was defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A TEAE was defined as any AE that occurs after the first dose of study drug. TEAEs included both serious and non-serious TEAEs.

Part 1: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters
From signing the informed consent form up to Day 4

The clinical laboratory parameters included the clinical chemistry, hematology, coagulation, and urinalysis. Clinical significance was determined by the investigator.

Part 1: Number of Participants With Clinically Significant Findings in Vital Sign Parameters
From signing the informed consent form up to Day 4

Vital signs measurements included diastolic and systolic blood pressure, heart rate, respiratory rate, and body temperature. Clinical significance was determined by the investigator.

Part 1: Number of Participants With Clinically Significant Findings in Physical Examination Parameters
From signing the informed consent form up to Day 4

Physical examination included examination of at least the following components: head, eyes, ears, nose, throat (HEENT), neck, lungs, abdomen, skin, cardiovascular and musculoskeletal evaluation, and general neurological examination. Clinical significance was determined by the investigator.

Part 1: Number of Participants With Clinically Significant Abnormalities in 12-Lead Electrocardiogram (ECG)
From signing the informed consent form up to Day 4

ECG data included the measurement of heart rate and aggregate PR interval, QRS duration, QT interval, QTcB interval, and QTcF interval.

Part 1: Number of Participants With Clinically Significant Findings in Pulse Oximetry
Pre-dose and 1.5, 4, 5, and 8 hours post-dose in each dose level

Oxygen saturation was measured via pulse oximetry. Pulse oximetry measurements were to be collected within 10 min before or after the specified time point. Clinical significance was determined by the investigator.

To Identify the Appropriate Low, Intermediarte, and High Doses of Nalbuphine Solution (Part A) to be Administered as Single Doses in the Treatment Phase of the Main Study (Part B).
0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, and 24 hours post-dose

Only Part A of thie study was conducted because of closure the clinical research unit (CRU) before Part B could be initiated. Summary statistics are provided for C-max

Steady state PK of nalbuphine HCl ER tablets as a function of dose
Day -1 to 14 Cohort 1 Groups 1-3 and Cohort 2; Day -1 to 17 Cohort 1 Group 4

Steady state PK of nalbuphine HCl ER tablets following escalating repeated oral doses in ESRD patients receiving HD therapy relative to healthy subjects

Extent of extraction of nalbuphine by measuring nalbuphine in plasma and dialysate during dialysis
Day -1 to 14 Cohort 1 Groups 1-3; Day -1 to 17 Cohort 1 Group 4

Extraction by dialysis was assessed by measuring nalbuphine concentrations in plasma during dialysis obtained from arterial (pre-dialyzer) and venous access ports (post-dialyzer) and by measuring the amount removed in the dialysate during dialysis in the dialysate as a function of dose.

Secondary Endpoints

Absolute Change from Baseline in the Cough Severity Numerical Rating Scale (CS-NRS) at Week 26
Baseline, Week 26
Relative Change from Baseline in 24-hour Cough Frequency at Week 6
Baseline, Week 6
Percentage of Participants Achieving ≥50% Reduction from Baseline in 24-hour Cough Frequency at Week 26
Baseline, Week 26
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
NAL ER 54 mgEXPERIMENTALParticipants will undergo a 2-week blinded titration period (twice daily \[BID\] dosing with one NAL ER once daily \[QD\] dose and one placebo QD dose) followed by a fixed dose treatment period receiving NAL ER 54 milligrams (mg) BID for 52 weeks.
PlaceboPLACEBO_COMPARATORParticipants will undergo a 2-week blinded titration period followed by a fixed dose treatment period receiving a matching placebo BID for 52 weeks.
NAL ER 54 mg BIDEXPERIMENTALParticipants will receive NAL ER during the titration period, with dose titration starting at 27 milligrams (mg) once daily (QD) and increasing up to 54 mg twice daily (BID) from Day 1 to Day 14. Participants will receive NAL ER 54 mg BID during the fixed-dose treatment period from Day 15 to Day 42.
NAL ER 27 mg BIDEXPERIMENTALParticipants will receive NAL ER during the titration period, starting at 27 mg QD to 27 mg BID from Day 1 to Day 14. Participants will receive NAL ER 27 mg BID during the fixed-dose treatment period from Day 15 to Day 42.
NAL ER 27 mg QDEXPERIMENTALParticipants will receive NAL ER 27 mg QD during the titration period from Day 1 to Day 14. Participants will continue to receive NAL ER 27 mg QD during the fixed-dose treatment period from Day 15 to Day 42.
NAL ER 27 mgEXPERIMENTALParticipants were titrated over 2 weeks to NAL ER 27 mg BID, then maintained at the fixed dose for 4 weeks (total 6 weeks of treatment).
NAL ER 108 mgEXPERIMENTALParticipants were titrated over 2 weeks to NAL ER 108 mg BID, then maintained at the fixed dose for 4 weeks (total 6 weeks of treatment).
First NAL ER, then PlaceboEXPERIMENTALParticipants received NAL ER at escalating doses (27 mg QD to BID, 54 mg BID, and 108 mg BID) in Treatment Period 1, followed by placebo matched to NAL ER in Treatment Period 2.
First Placebo then NAL EREXPERIMENTALParticipants received placebo matched to NAL ER in Treatment Period 1, followed by NAL ER at escalating doses (27 mg QD to BID, 54 mg BID, and 108 mg BID) in Treatment Period 2.
NAL ER then placeboEXPERIMENTALParticipants received NAL ER in treatment period 1 at dose 27 mg once daily (QD) to 54 mg twice daily (BID) over a 5-day period and then maintained at 54 mg BID for 4 days. Dose was increased to 108 mg BID for 1 week then to 162 mg BID for 6 days, followed by placebo matching NAL ER for 3 weeks in treatment period 2. Both the treatment periods were separated by 2 weeks of washout period.
Placebo then NAL EREXPERIMENTALParticipants received placebo matching NAL ER for 3 weeks in treatment period 1 followed by NAL ER in treatment period 2 at dose 27 mg QD to 54 mg BID over a 5-day period and then maintained at 54 mg BID for 4 days. Dose was increased to 108 mg BID for 1 week then to 162 mg BID for 6 days. Both the treatment periods were separated by 2 weeks of washout period.
NAL EREXPERIMENTALDuring the double-blind (DB) period, participants were titrated over 2 weeks to NAL ER 162 mg, orally, twice daily (BID), followed by 162 mg, orally, BID, for 12 weeks. During the open label extension (OLE) period, participants perceived a titration period of 2 weeks, and continued to receive NAL ER 162 mg, orally, BID, for 38 weeks in total.
nalbuphine HCl EREXPERIMENTALnalbuphine HCl ER
nalbuphine HCl ER 90mgEXPERIMENTALnalbuphine HCl ER tablets 90 mg BID
nalbuphine HCl ER 180 mgEXPERIMENTALnalbuphine HCl ER tablets 180 mg BID
Sugar pillPLACEBO_COMPARATORPlacebo tablets BID
nalbuphine HCl ER 60mgEXPERIMENTALnalbuphine HCl ER tablets 60 mg BID
nalbuphine HCl ER 120mgEXPERIMENTALnalbuphine HCl ER tablets 120 mg BID
Cohort 1: NAL ER Dose AEXPERIMENTALParticipants will receive NAL ER Dose A on Day 1 in the fasted state, followed by dosing on Day 5 in the fed state in the first sequence, and vice versa in the second sequence, with a 3-day washout maintained between sequences.
Cohort 2: NAL ER Dose BEXPERIMENTALParticipants will receive NAL ER Dose B on Day 1 in the fasted state, followed by dosing on Day 5 in the fed state in the first sequence, and vice versa in the second sequence, with a 3-day washout maintained between sequences.
Cohort A1 - NAL ER + PirfenidoneEXPERIMENTALParticipants will receive NAL ER followed by NAL ER co-administered with pirfenidone.
Cohort A2 - NAL ER + NintedanibEXPERIMENTALParticipants will receive NAL ER followed by NAL ER co-administered with nintedanib.
Cohort B1 - Pirfenidone + NAL EREXPERIMENTALParticipants will receive pirfenidone followed by pirfenidone co-administered with NAL ER.
Cohort B2 - Nintedanib + NAL EREXPERIMENTALParticipants will receive nintedanib followed by nintedanib co-administered with NAL ER.
Part 1 Single Ascending DoseEXPERIMENTALParticipants with mild (group 1), moderate (group 2) and severe (group 3) hepatic impairment received single dose ranging from 27 mg up to 162 mg of NAL ER tablet under fasting conditions. There was a washout period of at least 7 days between the drug administration between each dose level. Participants with no hepatic impairment (group 4) received a single dose of NAL ER of up to 162 mg under fasting conditions.
90 mg nalbuphine HCl solutionEXPERIMENTAL90 mg nalbuphine HCl solution 9 mL × 10 mg/mL hydromorphone HCl + 141 mL flavored beverage
120 mg nalbuphine HCl solutionEXPERIMENTAL120 mg nalbuphine HCl solution 12 mL × 10 mg/mL hydromorphone HCl + 138 mL flavored beverage
150 mg nalbuphine HCl solutionEXPERIMENTAL150 mg nalbuphine HCl solution 15 mL × 10 mg/mL hydromorphone HCl + 135 mL flavored beverage
180 mg nalbuphine HCl solutionEXPERIMENTAL180 mg nalbuphine HCl solution 18 mL × 10 mg/mL hydromorphone HCl + 132 mL flavored beverage
270 mg nalbuphine HCl solutionEXPERIMENTAL270 mg nalbuphine HCl solution 27 mL × 10 mg/mL hydromorphone HCl + 123 mL flavored beverage
Up to 405 mg nalbuphine HCl solutionEXPERIMENTALUp to 405 mg nalbuphine HCl solution Up to 40.5 mL × 10 mg/mL hydromorphone HCl + at least 109.5 mL flavored beverage
Up to 540 mg nalbuphine HCl solutionEXPERIMENTALUp to 540 mg nalbuphine HCl solution Up to 54 mL × 10 mg/mL hydromorphone HCl + at least 96 mL flavored beverage
Cohort 1 - Groups 1-3EXPERIMENTALHD patients dosing up to 180mg BID
Cohort 1 - Group 4EXPERIMENTALHD patients dosing up to 240mg BID
Cohort 2EXPERIMENTALHealthy patients dosing up to 180mg BID

Interventions

NameTypeDescription
NAL ERDRUGOral tablets
PlaceboDRUGOral tablets
Nalbuphine ER TabletsDRUGActive Nalbuphine ER Tablets
Placebo TabletsDRUGPlacebo matching NAL ER with no active substance
nalbuphine HCl ERDRUGnalbuphine HCl ER BID for up to 50 weeks
nalbuphine HCl ER tablets 90 mg BIDDRUGnalbuphine HCl ER tablets 90 mg BID administered for 8 weeks
nalbuphine HCl ER tablets 180 mg BIDDRUGnalbuphine HCl ER tablets 180 mg BID administered for 8 weeks
Placebo tablets BIDDRUGPlacebo tablets BID administered for 10 weeks
nalbuphine HCl ER tablets 60 mg BIDDRUGnalbuphine HCl ER tablets 60 mg BID administered for 6 weeks
nalbuphine HCl ER tablets 120mg BIDDRUGnalbuphine HCl ER tablets 120mg BID administered for 6 weeks
PirfenidoneDRUGOral tablets
NintedanibDRUGOral capsules
Nalbuphine ERDRUGOral tablet
Nalbuphine HCl solutionDRUGnalbuphine solution administered at various strengths
Placebo solutionDRUGPlacebo
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Eligibility Criteria

Age Range40 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites19

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 Screenin...

Countries:United StatesCanadaAustraliaChileGermanyItalyNetherlandsPolandSpainTurkey (Türkiye)United KingdomAustriaFranceRomania
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Recent Changes (Last 90 Days)

MEDIUMSep 21, 2026NCT07487740TRIAL_REMOVED: changed
LOWSep 15, 2026NCT07671911lastUpdatePostDate: changed
LOWSep 15, 2026NCT07671911lastUpdatePostDate: changed
LOWSep 15, 2026NCT07671911lastUpdatePostDate: changed
MEDIUMSep 3, 2026NCT07036029TRIAL_REMOVED: changed
MEDIUMSep 3, 2026NCT07036029TRIAL_REMOVED: changed
MEDIUMSep 3, 2026NCT07036029TRIAL_REMOVED: changed
LOWAug 31, 2026NCT07671911lastUpdatePostDate: changed
LOWAug 31, 2026NCT07671911lastUpdatePostDate: changed
HIGHAug 21, 2026NCT07487740Status: RECRUITING → COMPLETED
HIGHAug 21, 2026NCT07487740Status: RECRUITING → COMPLETED
LOWAug 11, 2026NCT07671924lastUpdatePostDate: changed
LOWAug 11, 2026NCT07671924lastUpdatePostDate: changed
LOWAug 11, 2026NCT07671924lastUpdatePostDate: changed
HIGHAug 3, 2026NCT07036029Status: RECRUITING → COMPLETED
HIGHAug 3, 2026NCT07036029Status: RECRUITING → COMPLETED
MEDIUMJul 27, 2026NCT05964335TRIAL_REMOVED: changed
MEDIUMJul 27, 2026NCT05964335TRIAL_REMOVED: changed
MEDIUMJul 27, 2026NCT05964335TRIAL_REMOVED: changed
MEDIUMJul 27, 2026NCT05964335TRIAL_REMOVED: changed

Frequently asked questions about Haduvio (nalbuphine ER)

What is Haduvio (nalbuphine ER)?

Haduvio is an extended-release oral formulation of nalbuphine, a small molecule drug developed by Trevi Therapeutics, Inc. (TRVI). It is being studied in conditions including refractory chronic cough, idiopathic pulmonary fibrosis related chronic cough, and prurigo nodularis. The program includes four clinical trials with a total enrollment of 562 participants.

What is Haduvio (nalbuphine ER) used for?

Haduvio is being developed for refractory chronic cough and idiopathic pulmonary fibrosis related chronic cough, as well as prurigo nodularis. It is an investigational therapy and has not been approved for any indication. Clinical testing spans healthy participants, hepatic impairment, idiopathic pulmonary fibrosis, and cough related conditions.

Who makes Haduvio (nalbuphine ER)?

Haduvio is developed by Trevi Therapeutics, Inc., which trades under the ticker TRVI. The company is running the nalbuphine extended-release clinical program, including Phase 1, Phase 2, and Phase 3 studies across cough and fibrosis related indications.

What phase is Haduvio (nalbuphine ER) in?

Haduvio is in clinical development, with studies ranging from Phase 1 through Phase 3. It is investigational and not approved. Three trials are completed and one is active. The completed studies include a Phase 1 food effect bioavailability study and a Phase 1 idiopathic pulmonary fibrosis respiratory function and safety study.

What clinical trials is Haduvio (nalbuphine ER) in?

Haduvio trials include NCT07671924, a recruiting Phase 2 study in refractory chronic cough in Canada, and NCT07671911, a recruiting Phase 3 study in idiopathic pulmonary fibrosis related chronic cough in the United States. Completed studies are NCT07487740, a Phase 1 food effect study in healthy participants, and NCT07036029, a Phase 1 IPF respiratory function and safety study.

Is Haduvio the same as nalbuphine?

Yes. Haduvio is the brand name for extended-release nalbuphine, also referred to as nalbuphine HCl ER, NAL ER, NAL, nalbuphine ER, and nalbuphine HCl ER tablets. These names describe the same extended-release oral formulation of nalbuphine developed by Trevi Therapeutics.