A Long Island patient has become the first person in New York State to be cured of sickle cell anemia, marking a major medical breakthrough made possible by advanced gene therapy, doctors announced.
Sebastien Beauzile, 21, received the groundbreaking treatment at Cohen Children’s Medical Center, part of Northwell Health. For most of his life, Beauzile endured chronic pain and frequent medical complications caused by sickle cell disease.
“Sickle cell was like a blockade for me, but now it’s just like a wall that I just jumped over,” Beauzile said.
Physicians at the hospital described the case as a historic milestone in medicine.
“The cliché ‘the future is here’ is actually true in this case,” said Dr. Charles Schleien.
“We feel incredibly fortunate to be among the first to offer this treatment,” added Dr. Jonathan Fish.
The therapy, known as Lyfgenia, uses a patient’s own bone marrow and stem cells. Doctors collect the cells, genetically modify them, and then return them to the patient through intravenous transfusions. The modified cells produce healthy red blood cells, effectively eliminating the disease.
“When we realized we could use Sebastien’s own stem cells to do this therapy, we were thrilled,” said Dr. Banu Aygun.
Sickle cell disease was first described in modern medicine in 1910, and for more than a century treatment focused on managing symptoms rather than offering a cure.
“Over 100 years later, this is the first true cure we are witnessing,” said Dr. Jeffrey Lipton.
In the United States, sickle cell disease disproportionately affects people of African, Mediterranean, and Middle Eastern descent. Cohen Children’s Medical Center said it hopes to expand access to the therapy and reach communities most impacted by the condition.
Beauzile expressed deep gratitude to his medical team.
“To the Med 4 team, the hematology team, the transplant team — you’ve truly changed my life,” he said.
His mother, Magda Lamour, said the moment was overwhelming.
“Sebastien has been coming to this hospital since he was two months old. There are no words to describe how grateful I am,” she said.
Now free from the disease, Beauzile looks forward to living without limitations. He plans to travel, exercise, and focus on his education, with hopes of pursuing a career in the medical field.
“I feel amazing,” he said. “I can’t wait to get back to my day-to-day life because now I feel unstoppable.”
On Thursday, civil rights attorney Benjamin Crump announced a $100,000 donation to Northwell Health to support ongoing efforts to treat and cure sickle cell disease.



