Clinical Trial Information Request for Protocol 20-227 Title A RANDOMIZED DOUBLE-BLIND TRIAL OF ABATACEPT EXTENDED DOSING VERSUS ABATACEPT SHORT-TERM DOSING FOR GRAFT VERSUS HOST DISEASE PROPHYLAXIS: ABA3 PI Site Directions: Type your name, contact email and phone number (optional) into the boxes below then click Save to Submit your request for information about this study. Name Email Phone