About this trial
The primary objective of this study is to assess the platelet count response to ravulizumab in participants clinically diagnosed as atypical hemolytic uremic syndrome (aHUS).
Eligibility criteria
Qualifiers
Body weight ≥20 kilograms (kg)
Participants clinically diagnosed as aHUS who have any of diseases/conditions listed below (including participants in whom Thrombotic microangiopathy (TMA) has not been improved even after treatment for the pathogenesis of diagnosed secondary TMA and therefore, diagnosis of aHUS was made).
Infection (except for pneumococcal infection and Siga toxin-producing Escherichia coli infection)
During pregnancy or postpartum
Disqualifiers
Participants with TTP, STEC-HUS, secondary TMA that is obviously unrelated to complement abnormality.
Participants with TMA caused by malignant tumors, abnormal Cobalamin C metabolism, Streptococcus pneumoniae, drugs, autoimmune diseases other than systemic lupus erythematosus and related diseases (e.g. scleroderma etc.), or hematopoietic stem cell transplantation
Participants with pathological complement gene variants (CFH, CFI , CD46 (MCP), C3, CFB, THBD, DGKE) associated with the development of aHUS at enrolment
Participants with positive anti-factor H antibodies
Trial design
Treatments tested in this trial
- Ravulizumab