5 Most Expensive Drugs in the World

3. Zynteglo

Cost: $2.8 million

Company: Bluebird Bio

Zynteglo is a gene therapy that involves utilizing a patient’s hematopoietic stem cells. This therapy was granted approval on August 17, 2022. It is specifically used for treating beta-thalassemia in adults and pediatric patients who depend on regular red blood cell transfusions.