Status:

COMPLETED

Study of Danicopan in Participants With Paroxysmal Nocturnal Hemoglobinuria With Inadequate Response to Eculizumab

Lead Sponsor:

Alexion Pharmaceuticals, Inc.

Collaborating Sponsors:

Achillion, a wholly owned subsidiary of Alexion

Conditions:

Paroxysmal Nocturnal Hemoglobinuria (PNH)

Eligibility:

All Genders

18-65 years

Phase:

PHASE2

Brief Summary

To determine the effectiveness of ACH-0144471 (also known as danicopan and ALXN2040) in improving anemia when given with eculizumab for 24 weeks in participants with PNH. Danicopan dose may be increas...

Detailed Description

The purpose of this study is to determine the effectiveness of danicopan in improving anemia, as measured by increased blood hemoglobin, when given with eculizumab (a drug commonly used for treatment ...

Eligibility Criteria

Inclusion

  • Key
  • Diagnosed with PNH
  • Have received at least one red blood cell transfusion within last 12 weeks
  • Anemia with adequate reticulocytosis
  • Must be on a stable regimen of eculizumab
  • Platelet count ≥ 40,000/microliter without the need for platelet transfusions
  • Documentation of vaccination for Neisseria meningitidis, Haemophilus influenza, and Streptococcus pneumoniae or willingness to receive vaccinations based on local guidelines
  • Willingness to receive antibiotic prophylaxis
  • Female participants must use highly effective birth control to prevent pregnancy during the clinical trial and for 30 days after their last dose of study drug
  • Male participants must use a highly effective birth control with a female partner to prevent pregnancy during the clinical trial and for 90 days after the last dose of study drug
  • Key

Exclusion

  • Current evidence of bone marrow failure or aplastic anemia requiring treatment
  • History of a major organ transplant or hematopoietic stem cell/marrow transplant
  • Received another investigational agent within 30 days or 5 half-lives of the investigational agent prior to study entry, whichever is greater
  • Documented C5 complement protein mutations
  • Known or suspected complement deficiency
  • Contraindication to any of the required vaccinations
  • Active bacterial infection or clinically significant active viral infection, a body temperature \>38°C, or other evidence of infection
  • History of meningococcal infection, or a first-degree relative or household contact with a history of meningococcal infection
  • History of hypersensitivity reactions to commonly used antibacterial agents
  • Note: Additional inclusion/exclusion criteria may apply, per protocol.

Key Trial Info

Start Date :

May 8 2018

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

January 5 2023

Estimated Enrollment :

12 Patients enrolled

Trial Details

Trial ID

NCT03472885

Start Date

May 8 2018

End Date

January 5 2023

Last Update

December 12 2023

Active Locations (5)

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Page 1 of 2 (5 locations)

1

Clinical Study Site

Baltimore, Maryland, United States, 21287

2

Clinical Study Site

Cleveland, Ohio, United States, 44195

3

Clinical Study Site

Florence, Italy

4

Clinical Study Site

Naples, Italy