A study of the efficacy and safety of HRS-5965 capsules compared to eculizumab for 24 weeks in patients with PNH.

Inclusion Criteria:

1. Diagnosis of PNH confirmed by flow cytometry with clone size > 10%.
2. Have not received complement inhibitor therapy;
3. LDH > 1.5*ULN at screening.
4. Hemoglobin level < 10 g/dL at screening.

Exclusion Criteria:

1. Known or suspected hereditary or acquired complement deficiency;
2. Patients with laboratory evidence of bone marrow failure (reticulocytes <100x109/L; platelets <30x109/L; neutrophils <0.5x109/L);
3. Presence or suspicion of a systemic active bacterial, viral, or fungal infection (based on judgment of the investigator) within 2 weeks prior to the first dose of HRS-5965;
4. History of infection with capsular bacteria (e.g., meningococcus, pneumococcus, etc.)
5. Positive of HIV, HBsAg or HCVAb.