Open Label Extension Study of Nalbuphine HCl ER in Patients With Prurigo Nodularis

May 19, 2025 updated by: Trevi Therapeutics

An Open Label Extension Study of the Safety and Anti-Pruritic Efficacy of Nalbuphine HCl ER Tablets in Prurigo Nodularis Patients

The primary objective of the study is to evaluate the overall safety of nalbuphine HCL ER tablets during a treatment period of up to 50 weeks.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

36

Phase

  • Phase 2
  • 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 Locations

  • Germany
      • Münster, Germany
        • University of Munster

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

14 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Subject completed participation in the TR03 study

Exclusion Criteria:

  • Medical condition or other factors that in the opinion of the Investigator may interfere with the conduct of the study.
  • Subject is a pregnant or lactating female

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: nalbuphine HCl ER
Drug: nalbuphine HCl ER
nalbuphine HCl ER BID for up to 50 weeks
Other Names:
  • nalbuphine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Incidence and Nature of Treatment Emergent Adverse Events (TEAEs)
Time Frame: 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.
50 weeks

Collaborators and Investigators

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

Sponsor

Trevi Therapeutics

Investigators

  • Study Director: Chief Development Officer, Trevi Therapeutics

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)

August 15, 2015

Primary Completion (Actual)

September 3, 2017

Study Completion (Actual)

September 3, 2017

Study Registration Dates

First Submitted

June 24, 2014

First Submitted That Met QC Criteria

June 24, 2014

First Posted (Estimated)

June 25, 2014

Study Record Updates

Last Update Posted (Actual)

May 21, 2025

Last Update Submitted That Met QC Criteria

May 19, 2025

Last Verified

May 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TR03ext
  • 2013-005628-41 (EudraCT Number)

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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