Status:

COMPLETED

A Study Evaluating the Efficacy and Safety of ABP 959 Compared With Eculizumab in Adult Participants With PNH

Lead Sponsor:

Amgen

Conditions:

Paroxysmal Nocturnal Hemoglobinuria

Eligibility:

All Genders

18+ years

Phase:

PHASE3

Brief Summary

This is a randomized, double-blind, active-controlled phase 3 study of ABP 959 in participants with paroxysmal nocturnal hemoglobinuria.

Eligibility Criteria

Inclusion

  • Men and women ≥ 18 years of age.
  • Historical diagnosis of PNH.
  • Administration of eculizumab for ≥ 6 months and currently receiving 900 mg of eculizumab.
  • Hemoglobin ≥ 9.0 g/dL for at least 6 weeks before randomization.
  • Lactate dehydrogenase \< 1.5 × the upper limit of normal at screening.
  • Platelet count ≥ 50 × 10\^9/L.
  • Absolute neutrophil count (ANC) ≥ 0.5 x 10\^9/L (500/μL).
  • Participants must be vaccinated against Neisseria meningitidis.
  • Participants must sign an IRB/IEC-approved ICF before participation in any procedures.

Exclusion

  • Known or suspected hereditary complement deficiency.
  • Clinically significant cardiovascular disease (including myocardial infarction, unstable angina, symptomatic congestive heart failure \[New York Heart Association ≥ Class III\], serious uncontrolled cardiac arrhythmia), peripheral vascular disease, cerebrovascular accident, or transient ischemic attack in the previous 6 months.
  • Evidence of acute thrombosis (liver Doppler ultrasound of hepatic and portal veins).
  • Known to be positive for human immunodeficiency virus.
  • Woman who is pregnant or breastfeeding.
  • Participant is currently enrolled in or has not yet completed at least 30 days since ending other investigational device or drug study(s), or participant is receiving other investigational agent(s).
  • Participant has known sensitivity to any of the products to be administered during the study, including mammalian cell-derived drug products.
  • History of meningococcal infection.
  • Presence or suspicion of active bacterial infection, or recurrent bacterial infection.
  • History of bone marrow transplantation.
  • Red blood cell transfusion required within 12 weeks before randomization.
  • Participant experienced ≥ 2 breakthrough events, (ie, signs and symptoms of intravascular hemolysis, that require dose and/or schedule adjustments of eculizumab) in the previous 12 months before screening.

Key Trial Info

Start Date :

January 22 2019

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

July 12 2022

Estimated Enrollment :

42 Patients enrolled

Trial Details

Trial ID

NCT03818607

Start Date

January 22 2019

End Date

July 12 2022

Last Update

May 23 2023

Active Locations (24)

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Page 1 of 6 (24 locations)

1

Children's Healthcare of Atlanta at Egleston

Atlanta, Georgia, United States, 30322

2

Fakultní Nemocnice Brno

Brno, Jihormoravsky KRAJ, Czechia, 625 00

3

Fakultní Nemocnice Olomouc

Olomouc, Czechia, 772 00

4

Fakultní Nemocnice Ostrava

Ostrava-Poruba, Czechia, 708 52