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A Long-term Extension (LTE) Study to Characterize the Safety and Efficacy of Danicopan as an Add-on Therapy to a Complement Component 5 Inhibitor (C5i) in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Previously Treated With Danicopan in an Alexion-sponsored Clinical Study

A Long-term Extension (LTE) Study to Characterize the Safety and Efficacy of Danicopan as an Add-on Therapy to a Complement Component 5 Inhibitor (C5i) in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Previously Treated With Danicopan in an Alexion-sponsored Clinical Study

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031230248
Enrollment
100
Registered
2023-07-21
Start date
2023-07-21
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Paroxysmal Nocturnal Hemoglobinuria (PNH)

Interventions

Drug: Danicopan

Sponsors

Sugita Yuko
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - All participants who completed their participation in an Alexion sponsored clinical study with danicopan as an add on to a C5i treatment. - Patient is capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form and in this protocol. - Documentation of vaccination for Neisseria meningitidis: All participants must be revaccinated as per national vaccination guidelines or local practice for vaccination use with complement inhibitors.

Exclusion criteria

Exclusion criteria: - Any medical condition (for example, cardiac, pulmonary, renal, oncologic, or psychiatric) that, in the opinion of the Investigator, might interfere with participation in the study, pose any added risk to the participant, or confound the assessment of the participant. - Patient has been permanently discontinued from danicopan in the parent study for any reason other than enrollment into this LTE study. - Female participants who are pregnant, breastfeeding, or intending to conceive during the course of the study.

Design outcomes

Primary

MeasureTime frame
Participants Experiencing Treatment-emergent Adverse Events (TEAEs) And Serious TEAEs

Secondary

MeasureTime frame
Change In Hemoglobin Values

Countries

Italy, Japan, United Kingdom, United States

Contacts

Public ContactYuko Sugita

Alexion Pharma GK

JPDept-DevOps-PMCO@alexion.com+81-3-3457-9559

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026