Complement profile in eculizumab-treated aHUS patients
Case . | Mutation or anti-CFH Ab . | Disease phase treatment . | Clinical parameters* . | Complement parameters . | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Platelets (150-400 × 103/μL) . | LDH (266-500 IU/L) . | Hemoglobin (14-18 g/dL) . | Serum creatinine (0.55-1.25 mg/dL) . | Serum C3 (83-180 mg/dL)† . | Plasma SC5b-9 (127-400 Eq/mL)† . | Serum CH50 (79-187 U Eq/mL)† . | C5b-9 deposits‡ (% of control) . | |||
1 | CFHR1/CFH | Acute (pre-Ecu) | 111 000 | 2000 | 5.1 | 6 | 79 | 329 | 227 | 309§ |
Hybrid gene | 9 d post-Ecu 1200 mg | 318 000 | 741 | 12.6 | 1.7 | 91 | 533 | 5 | 71 | |
2 | CFB -L433S | Acute (pre-Ecu) | 121 000 | 2011 | 5.5 | 27 | 77 | 156 | 100 | 1019§ |
14 d post-Ecu 1200 mg | 280 000 | 357 | 12.9 | 1.22 | 65 | 967 | 11 | 106 | ||
3 | No mutations | Acute (pre-Ecu) | 19 000 | 2373 | 9.2 | 1.9 | 50 | 411 | 142 | 478§ |
No anti-CFH Ab | 21 d post-Ecu 300 mg | 564 000 | n.d. | 12.5 | 0.6 | 76 | 116 | 46 | 105 | |
4 | No mutations | Acute (pre-Ecu) | 107 000 | 768 | 9.6 | 15.2 | 78 | 556 | 45 | 439§ |
No anti-CFH Ab | 14 d post-Ecu 1200 mg | 161 000 | 342 | 11.7 | 4.77 | 88 | 260 | 4 | 59 | |
5 | CFH-S1191L | Remission (pre-Ecu) | 237 000 | 576 | 10.9 | 8.91 | 93 | 121 | 72 | 298§ |
8 d post-Ecu 300 mg | 67 000 | 560 | 13.5 | 0.52 | 103 | 195 | 3 | 152§ | ||
12 d post-Ecu 600 mg | 119 000 | 588 | 13.6 | 0.59 | 95 | 214 | 3 | 43 | ||
11 d post-Ecu 600 mg | 225 000 | 493 | 12.6 | 0.5 | n.d. | 167 | 6 | 76 | ||
6 | C3-K633R | Acute (pre-Ecu) | 39 000 | 5000 | 7.7 | 1.48 | 123 | 392 | 93 | 342§ |
6 d post-Ecu 600 mg | 159 000 | 854 | 8.5 | 4.29 | 126 | 231 | 1 | 119 | ||
6 d post-Ecu 900 mg | 232 000 | 473 | 11.5 | 1.5 | n.d. | 566 | 11 | 82 | ||
7 | CFH-R1210C | Acute (pre-Ecu) | 46 000 | 1962 | 7 | 5.7 | 79 | 421 | 118 | 474§ |
14 d post-Ecu 1200 mg | 277 000 | 336 | 11.9 | 1.4 | 89 | 505 | 10 | 102 | ||
21 d post-Ecu 1200 mg | 307 000 | 264 | 12.2 | 1.2 | 83 | 231 | 32 | 75 | ||
8 | CFI-R187Q | Acute (pre-Ecu) | 94 000 | 869 | 7.2 | 4.5 | 99 | 534 | n.d. | 177§ |
14 d post-Ecu 1200 mg | 212 000 | 401 | 10.1 | 2 | 89 | 435 | 6 | 24 | ||
1 mo post-Ecu 1200 mg | 185 000 | 434 | 11.6 | 1.93 | 85 | 298 | 22 | 92 |
Case . | Mutation or anti-CFH Ab . | Disease phase treatment . | Clinical parameters* . | Complement parameters . | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Platelets (150-400 × 103/μL) . | LDH (266-500 IU/L) . | Hemoglobin (14-18 g/dL) . | Serum creatinine (0.55-1.25 mg/dL) . | Serum C3 (83-180 mg/dL)† . | Plasma SC5b-9 (127-400 Eq/mL)† . | Serum CH50 (79-187 U Eq/mL)† . | C5b-9 deposits‡ (% of control) . | |||
1 | CFHR1/CFH | Acute (pre-Ecu) | 111 000 | 2000 | 5.1 | 6 | 79 | 329 | 227 | 309§ |
Hybrid gene | 9 d post-Ecu 1200 mg | 318 000 | 741 | 12.6 | 1.7 | 91 | 533 | 5 | 71 | |
2 | CFB -L433S | Acute (pre-Ecu) | 121 000 | 2011 | 5.5 | 27 | 77 | 156 | 100 | 1019§ |
14 d post-Ecu 1200 mg | 280 000 | 357 | 12.9 | 1.22 | 65 | 967 | 11 | 106 | ||
3 | No mutations | Acute (pre-Ecu) | 19 000 | 2373 | 9.2 | 1.9 | 50 | 411 | 142 | 478§ |
No anti-CFH Ab | 21 d post-Ecu 300 mg | 564 000 | n.d. | 12.5 | 0.6 | 76 | 116 | 46 | 105 | |
4 | No mutations | Acute (pre-Ecu) | 107 000 | 768 | 9.6 | 15.2 | 78 | 556 | 45 | 439§ |
No anti-CFH Ab | 14 d post-Ecu 1200 mg | 161 000 | 342 | 11.7 | 4.77 | 88 | 260 | 4 | 59 | |
5 | CFH-S1191L | Remission (pre-Ecu) | 237 000 | 576 | 10.9 | 8.91 | 93 | 121 | 72 | 298§ |
8 d post-Ecu 300 mg | 67 000 | 560 | 13.5 | 0.52 | 103 | 195 | 3 | 152§ | ||
12 d post-Ecu 600 mg | 119 000 | 588 | 13.6 | 0.59 | 95 | 214 | 3 | 43 | ||
11 d post-Ecu 600 mg | 225 000 | 493 | 12.6 | 0.5 | n.d. | 167 | 6 | 76 | ||
6 | C3-K633R | Acute (pre-Ecu) | 39 000 | 5000 | 7.7 | 1.48 | 123 | 392 | 93 | 342§ |
6 d post-Ecu 600 mg | 159 000 | 854 | 8.5 | 4.29 | 126 | 231 | 1 | 119 | ||
6 d post-Ecu 900 mg | 232 000 | 473 | 11.5 | 1.5 | n.d. | 566 | 11 | 82 | ||
7 | CFH-R1210C | Acute (pre-Ecu) | 46 000 | 1962 | 7 | 5.7 | 79 | 421 | 118 | 474§ |
14 d post-Ecu 1200 mg | 277 000 | 336 | 11.9 | 1.4 | 89 | 505 | 10 | 102 | ||
21 d post-Ecu 1200 mg | 307 000 | 264 | 12.2 | 1.2 | 83 | 231 | 32 | 75 | ||
8 | CFI-R187Q | Acute (pre-Ecu) | 94 000 | 869 | 7.2 | 4.5 | 99 | 534 | n.d. | 177§ |
14 d post-Ecu 1200 mg | 212 000 | 401 | 10.1 | 2 | 89 | 435 | 6 | 24 | ||
1 mo post-Ecu 1200 mg | 185 000 | 434 | 11.6 | 1.93 | 85 | 298 | 22 | 92 |
Ab, antibody; Ecu, eculizumab; n.d. not done.
Clinical data in the table are those recorded the same days when complement parameters were evaluated.
Limits of normal ranges (as defined in supplemental “Methods”).
Serum-induced C5b-9 deposits on ADP-activated endothelial cells (HMEC-1).
P < .01 vs control (serum from healthy subjects run in parallel, with 15 fields analyzed, as detailed in supplemental “Methods”).