bluebird bio Announces Partial Clinical Hold for Patients Under 18 in Sickle Cell Gene Therapy Clinical Program

bluebird bio, Inc. (NASDAQ: BLUE) today announced that the FDA has placed its clinical program for lovotibeglogene autotemcel (lovo-cel) gene therapy for sickle cell disease (SCD) on partial clinical hold for patients under the age of 18. The partial, temporary suspension relates to an ongoing investigation by bluebird bio into an adolescent patient with persistent, non-transfusion-dependent anemia following treatment with lovo-cel, now 18 months post-treatment.