18 and older, any sex, with Paroxysmal Nocturnal Hemoglobinuria (PNH). Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Change-from-baseline in Serum Lactate Dehydrogenase (LDH) Levels.Primary· Through Week 12 of the study
Change-from-baseline through Week 12 in serum lactate dehydrogenase (LDH) levels
Group
Value
95% CI
Zilucoplan (RA101495)
100.3
± 128.0
Change-from-baseline Bilirubin ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
-3.3
± 5.1
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
-4.7
± 12.0
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
-4.3
± 7.5
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
-0.3
± 2.9
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
-6.7
± 17.5
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
-2.3
± 12.5
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
-7.7
± 14.8
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
-2.0
± 6.2
Change-from-baseline Total Hemoglobin ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
5.7
± 4.2
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
3.3
± 3.8
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
0.3
± 4.0
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
-0.3
± 7.2
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
0.7
± 5.8
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
-3.3
± 4.2
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
2.3
± 3.1
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
0.3
± 2.5
Change-from-baseline Free Hemoglobin ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
-145.90
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
-140.60
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
-147.70
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
-138.40
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
-147.30
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
-148.10
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
-143.50
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
-144.30
Change-from-baseline Haptoglobin ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
0.133
± 0.231
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
0.000
± 0.000
Change-from-baseline Reticulocyte ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
-0.0190
± 0.0382
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
0.0090
± 0.0052
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
0.0430
± 0.0327
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
0.0477
± 0.0499
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
0.0310
± 0.0157
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
0.0253
± 0.0248
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
0.0350
± 0.0350
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
0.0190
± 0.0092
Change-from-baseline Hemoglobinuria ValuesSecondary· Through week 12
Changes from baseline at each of the scheduled postbaseline time-points Hemoglobinuria was assessed using a urine colorimetric scoring system with a score of 1 through 10. Where 1 represents no hemoglobinuria and 10 represents maximum hemoglobinuria.
Week 1
Group
Value
95% CI
Zilucoplan (RA101495)
0.0
Week 2
Group
Value
95% CI
Zilucoplan (RA101495)
0.5
± 0.7
Week 3
Group
Value
95% CI
Zilucoplan (RA101495)
0.5
± 0.7
Week 4
Group
Value
95% CI
Zilucoplan (RA101495)
1.0
± 1.4
Week 6
Group
Value
95% CI
Zilucoplan (RA101495)
0.5
± 0.7
Week 8
Group
Value
95% CI
Zilucoplan (RA101495)
2.0
Week 10
Group
Value
95% CI
Zilucoplan (RA101495)
2.3
± 2.5
Week 12
Group
Value
95% CI
Zilucoplan (RA101495)
-0.3
± 2.1
Adverse events — posted to ClinicalTrials.gov
Time frame: Through week 12 of the Study.
Reporting threshold: 0%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
The purpose of the study is to evaluate the safety and efficacy of RA101495 in patients with paroxysmal nocturnal hemoglobinuria (PNH) who have an inadequate response to eculizumab. Patients will be treated with RA101495 for 12 weeks.
Publications & conference data
8 peer-reviewed publications reference this trial (live from Europe PMC):
NCT03225287 — Extension Study of RA101495 for Patients With PNH Who Have Completed a Zilucoplan (RA101495) Clinical Study
· Phase 2
· terminated
NCT03078582 — Phase 2 Safety and Efficacy Study of Zilucoplan (RA101495) to Treat PNH Patients
· Phase 2
· completed
Other recruiting trials for Paroxysmal Nocturnal Hemoglobinuria (PNH)
Currently open trials in the same condition.
NCT07187401 — A First-in-Human Safety and Efficacy Study of ALN-CFB, a Small Interfering RNA (siRNA) Targeting Complement Factor B, in
· Phase 1, PHASE2
· recruiting
NCT07229235 — REAL-CARE: Real-world Effectiveness of Iptacopan in Italian Patients With Paroxysmal Nocturnal Hemoglobinuria
· recruiting
NCT06934967 — Study to Assess the Pharmacokinetics, Safety, and Tolerability of Iptacopan in Pediatric PNH Patients
· Phase 3
· recruiting
NCT06312644 — Study of Ultomiris® (Ravulizumab) Safety in Pregnancy
· recruiting
NCT06933914 — Long-term Safety and Tolerability of MY008211A Tablets in Patients With Paroxysmal Nocturnal Hemoglobinuria
· Phase 2, PHASE3
· recruiting
Other Ra Pharmaceuticals trials
Trials by the same sponsor.
NCT04025632 — Safety and Efficacy Study of Zilucoplan in Subjects With Immune-Mediated Necrotizing Myopathy
· Phase 2
· terminated
NCT03315130 — Safety and Efficacy Study of RA101495 in Subjects With Generalized Myasthenia Gravis
· Phase 2
· completed
NCT03078582 — Phase 2 Safety and Efficacy Study of Zilucoplan (RA101495) to Treat PNH Patients
· Phase 2
· completed
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Ra Pharmaceuticals
Last refreshed: 27 July 2022
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03030183.