Lead Sponsor

Apellis Pharmaceuticals, Inc.

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Male or Female
•At least 18 years of age
•Weigh \>55 kg
•Diagnosed with PNH
•On treatment with eculizumab (Soliris®) for at least 3 months
•Hb \< 10 g/dL at screening OR have received at least one transfusion within 12 months prior to screening
•Platelet count of \>30,000/mm3
•Absolute neutrophil count \> 500/mm3
•Women of child-bearing potential (WOCBP) must have a negative pregnancy test at screening and must agree to use protocol defined methods of contraception for the duration of the study (see below)
•Males with female partners of child bearing potential must agree to use protocol defined methods of contraception (see below) and agree to refrain from donating sperm for the duration of the study
•Willing and able to give informed consent

•Active bacterial infection
•Known infection with hepatitis B, C or HIV
•Hereditary complement deficiency
•History of bone marrow transplantation
•Participation in any other investigational drug trial or exposure to other investigational agent, device or procedure within 30 days
•Evidence of QTcF prolongation defined as \> 450 ms for males and \> 470 ms for females at screening
•Creatinine clearance (CrCl) \< 50 mL/min (Cockcroft-Gault formula) at screening
•Breast-feeding women
•History of meningococcal disease
•No vaccination against N. meningitidis types A, C, W, Y and B (administered as two separate vaccinations), Pneumococcal conjugate vaccine or Pneumococcal polysaccharide vaccine 23 (PCV13 or PPSV23, respectively) and Haemophilus influenzae Type B (Hib) vaccination within 2 years prior to Day 1 (Visit 2) dosing.

Related studies

NCT05876312 · Paroxysmal Nocturnal Hemoglobinuria (PNH)

NCT06312644 · Ultomiris-exposed Pregnant/ Postpartum, Pregnancy, and more

NCT03520647 · Severe Aplastic Anemia (SAA), Hypo-Plastic Myelodysplastic Syndrome (MDS), and more

NCT07152288 · Paroxysmal Nocturnal Hemoglobinuria (PNH)

NCT06294301 · Paroxysmal Nocturnal Hemoglobinuria (PNH)

A Phase I Study to Assess the Safety of Pegcetacoplan (APL-2) as an Add-On to Standard of Care in Subjects With PNH