Table 1.

Characteristics of patients with PNH and COVID-19 vaccine reactions

Patient123456
Sex Male Male Female Male Female Female 
Age, y 25 45 32 63 51 59 
Age at diagnosis, y 24 24 23 31 43 46 
Disease history Hemoglobinuria Aplastic anemia, transfusion dependence, microvascular small bowel thrombosis, renal failure, smooth muscle dystonia Aplastic anemia, transfusion dependence Transfusion dependence, hemoglobinuria, smooth muscle dystonia Hemoglobinuria, fatigue Hemoglobinuria, fatigue, extravascular hemolysis with transfusion dependence on C5 inhibition 
Complement inhibitor treatment No Ravulizumab Ravulizumab* Ravulizumab Ravulizumab Ravulizumab
Danicopan 
PNH clone 11% RBC, 80% granulocytes >99% RBC, >99% granulocytes 39% RBC, 99% granulocytes 99% RBC, 99% granulocytes 77% RBC, 95% granulocytes 76% RBC, 81% granulocytes 
Blood type A positive A positive A positive O positive A negative O positive 
COVID-19 vaccine Pfizer-BioNTech Pfizer-BioNTech Moderna Moderna Pfizer-BioNTech Pfizer-BioNTech 
Vaccine dose 
Last dose ravulizumab prior to vaccination N/A 4 wk 4 wk 4 wk (dose 1)
7 wk (dose 2) 
5 wk 3.5 wk (dose 1)
6.5 wk (dose 2) 
Time to symptom onset postvaccine 5 d Same day Same day Same day 1 d N/A 
Duration of symptoms 5 d 6 d 1 d 6 d 1 d N/A 
Hemoglobin prevaccination, g/dL 10.9 11.6 11.3 11.9 10.9 11.4 
Hemoglobin postvaccination, g/dL 10.4 8.9 8.4 10.7 (dose 1)
7.1 (dose 2) 
11.1 11.0 (dose 1)
10.7 (dose 2) 
LDH prevaccination, U/L 1127 211 255 305 207 263 
LDH postvaccination, U/L 1633 — — 312 (dose 1)
342 (dose 2) 
220 276 (dose 1)
258 (dose 2) 
Total bilirubin prevaccination, mg/dL 0.8 1.4 0.7 2.4 0.6 1.5 
Total bilirubin postvaccination, mg/dL 2.5 — 2.7 7.1 (dose 1)
3.0 (dose 2) 
— 2.1 (dose 1)
1.2 (dose 2) 
AST prevaccination, U/L 70 18 19 26 17 32 
AST postvaccination, U/L 102 — 25 24 (dose 1)
22 (dose 2) 
— 31 (dose 1)
24 (dose 2) 
Hospitalization/emergency department Yes No Yes No No No 
Thrombotic complication Microvascular small bowel thrombosis No No No No No 
Transfusion required No No 2 units RBC No No No 
Vaccine reaction Abdominal pain, fever Fever, myalgia, headache, fatigue, hemoglobinuria Fever, chills Fever, fatigue, dark urine, vomiting, diarrhea Headache, fatigue None 
Patient123456
Sex Male Male Female Male Female Female 
Age, y 25 45 32 63 51 59 
Age at diagnosis, y 24 24 23 31 43 46 
Disease history Hemoglobinuria Aplastic anemia, transfusion dependence, microvascular small bowel thrombosis, renal failure, smooth muscle dystonia Aplastic anemia, transfusion dependence Transfusion dependence, hemoglobinuria, smooth muscle dystonia Hemoglobinuria, fatigue Hemoglobinuria, fatigue, extravascular hemolysis with transfusion dependence on C5 inhibition 
Complement inhibitor treatment No Ravulizumab Ravulizumab* Ravulizumab Ravulizumab Ravulizumab
Danicopan 
PNH clone 11% RBC, 80% granulocytes >99% RBC, >99% granulocytes 39% RBC, 99% granulocytes 99% RBC, 99% granulocytes 77% RBC, 95% granulocytes 76% RBC, 81% granulocytes 
Blood type A positive A positive A positive O positive A negative O positive 
COVID-19 vaccine Pfizer-BioNTech Pfizer-BioNTech Moderna Moderna Pfizer-BioNTech Pfizer-BioNTech 
Vaccine dose 
Last dose ravulizumab prior to vaccination N/A 4 wk 4 wk 4 wk (dose 1)
7 wk (dose 2) 
5 wk 3.5 wk (dose 1)
6.5 wk (dose 2) 
Time to symptom onset postvaccine 5 d Same day Same day Same day 1 d N/A 
Duration of symptoms 5 d 6 d 1 d 6 d 1 d N/A 
Hemoglobin prevaccination, g/dL 10.9 11.6 11.3 11.9 10.9 11.4 
Hemoglobin postvaccination, g/dL 10.4 8.9 8.4 10.7 (dose 1)
7.1 (dose 2) 
11.1 11.0 (dose 1)
10.7 (dose 2) 
LDH prevaccination, U/L 1127 211 255 305 207 263 
LDH postvaccination, U/L 1633 — — 312 (dose 1)
342 (dose 2) 
220 276 (dose 1)
258 (dose 2) 
Total bilirubin prevaccination, mg/dL 0.8 1.4 0.7 2.4 0.6 1.5 
Total bilirubin postvaccination, mg/dL 2.5 — 2.7 7.1 (dose 1)
3.0 (dose 2) 
— 2.1 (dose 1)
1.2 (dose 2) 
AST prevaccination, U/L 70 18 19 26 17 32 
AST postvaccination, U/L 102 — 25 24 (dose 1)
22 (dose 2) 
— 31 (dose 1)
24 (dose 2) 
Hospitalization/emergency department Yes No Yes No No No 
Thrombotic complication Microvascular small bowel thrombosis No No No No No 
Transfusion required No No 2 units RBC No No No 
Vaccine reaction Abdominal pain, fever Fever, myalgia, headache, fatigue, hemoglobinuria Fever, chills Fever, fatigue, dark urine, vomiting, diarrhea Headache, fatigue None 

— denotes no information is available; AST, aspartate amino transferase; LDH, lactate dehydrogenase; N/A, not applicable; RBC red blood cell.

*

Additionally on danicopan; however, 2 doses were missed immediately following vaccination.

None of these patients were previously transfused in the past year.

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