Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

betibeglogene autotemcel

A preparation of autologous, CD34-positive hematopoietic stem cells (HSCs) transduced ex vivo with the BB305 recombinant replication-defective, self-inactivating lentiviral vector encoding for an engineered form of human beta-globin (hemoglobin-beta, HBB) gene, beta-A-T87Q (b-A-T87Q) where the threonine at position 87 has been substituted with glutamine, with potential to restore beta-globin expression and function. Autologous CD34-positive stem cells are isolated from the patient's own bone marrow and the cells are transduced with the lentiviral vector. Upon re-infusion of betibeglogene autotemcel back into the patient, these cells express b-A-T87Q-globin, thereby allowing the body to make normal hemoglobin and thus normal, healthy red blood cells. Beta-globin, the beta-chain of the most common form of hemoglobin, is encoded by the HBB gene; mutations in this gene prevent normal beta-globin production and are associated with beta-thalassemia and sickle cell anemia. The b-A-T87Q form of beta-globin has increased antisickling activity compared to the wild type protein.
Synonym:autologous CD34+ cells encoding beta-A-T87Q-globin gene
autologous CD34+ hematopoietic stem cells transduced ex vivo with betibeglogene darolentivec
autologous CD34+ HSCs transduced with LentiGlobin BB305
LentiGlobin BB305 drug product for TDT
LentiGlobin BB305 lentiviral vector-transduced autologous CD34+ HSCs
LentiGlobin BB305-transduced CD34-positive cells
LentiGlobin drug product for transfusion dependent beta-thalassemia
lentiviral b-A(T87Q)-globin-transduced CD34-positive cells
US brand name:LentiGlobin BB305 Drug Product
Zynteglo
Search NCI's Drug Dictionary