Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT05458128 · ClinicalTrials.gov registry record · Phase 3

A Long-Term Safety and Effectiveness Study to Evaluate Pitolisant in Adult Patients With Idiopathic Hypersomnia

A Phase 3 study, sponsored by Harmony Biosciences Management.

Completed
Registry status
Phase 3
Development phase
119
Enrollment target

NCT05458128: Completed Phase 3 study, sponsored by Harmony Biosciences Management.

NCT05458128 is a Phase 3 study that has completed, run by Harmony Biosciences Management. The registered enrollment target is 119 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (85% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT05458128, a Phase 3 study, has completed, sponsored by Harmony Biosciences Management.

COMPLETED
Registry status
Phase 3
Development phase
119 participants
Enrollment target

Study Summary

The primary objective of this study is to assess the long-term safety and effectiveness of pitolisant in patients with idiopathic hypersomnia (IH) who completed the Double-Blind Randomized Withdrawal Phase of study HBS-101-CL-010.

Primary Outcome

Incidence of adverse events (AEs)

Interventions

  • DRUG Pitolisant

Trial Details

FieldValue
Enrollment Target 119 participants
Start Date 2022-08-19
Est. Completion 2025-10-01
Phase Phase 3
Harmony Biosciences Management

10 total trials

What the finished NCT05458128 record still lists

NCT05458128 is an interventional study that assigns participants to a tested intervention. The registered 119 participants enrollment target is mid-sized for trials with a published cap, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (85% lower).

The record links to 0 conditions, and to 1 intervention - of which Pitolisant is the first listed.

NCT05458128 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT05458128 about?

NCT05458128 is a clinical study titled "A Long-Term Safety and Effectiveness Study to Evaluate Pitolisant in Adult Patients With Idiopathic Hypersomnia". The primary objective of this study is to assess the long-term safety and effectiveness of pitolisant in patients with idiopathic hypersomnia (IH) who completed the Double-Blind Randomized Withdrawal Phase of study HBS-101-CL-010.

What is the current status of trial NCT05458128?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 119 participants. The study started on 2022-08-19. Estimated completion is 2025-10-01.

What interventions are being tested in trial NCT05458128?

The interventions under investigation include: Pitolisant (DRUG).

Who is sponsoring clinical trial NCT05458128?

This trial is sponsored by Harmony Biosciences Management, which has 10 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT05458128's enrollment target sits among peer trials

119 1640th of 2000 higher than 360 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT04870762 · 119 participants · Phase 2

    Customized 3D Printed Oral Stents During Head and Neck Radiotherapy

  • NCT05559853 · 119 participants

    Developing a New MRI Technique to Understand Changes in Brain Tumors After Treatment

  • NCT06564389 · 119 participants · Phase 1

    FIH Study to Evaluate the Tolerability of PF-07832837 in Healthy Adults and Patients

  • NCT06742801 · 119 participants · NA

    Onyx™ Liquid Embolic IDE Clinical Study

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT05458128, the US trial registry maintained by the National Library of Medicine. NCT05458128 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.