How do you choose between eculizumab and ravulizumab for patients with acute kidney injury from complement mediated thrombotic microangiopathy?   

For atypical HUS (aka complement-mediated TMA), both eculizumab and ravalizumab are FDA-approved therapies and are technically equivalent.The main advantage of ravulizumab is that it is a re-engineered form of eculizumab that extends its half-life to 51.8 days vs 11.3 days for eculizumab.Of note, me...