Study shows efficacy of cancer therapy in children | The USA Print

Study shows efficacy of cancer therapy in children

A novel supercharged immune cell treatment appears to work against tumors in children with a certain kind of cancerresearchers reported Wednesday.

Nine of 27 children in an Italian study were free of cancer six weeks after treatment, although two later relapsed and died.

The call therapy T cells with chimeric antigen receptors (or therapy of CAR T cells) is already used to help the immune system fight leukemia and other blood cancers. This is the first time that researchers have achieved such encouraging results in solid tumors, experts said, raising hopes that the therapy can be used against cancers of other types.

It is too early to consider the treatment a cure for neuroblastoma, a cancer in nervous tissue that often begins during childhood in the adrenal glands and in the abdomen.

Ordinary treatment can be very severe: chemotherapy, surgery, and radiation, depending on the stage of the cancer and other factors. The children in the study had cancers that had come back or were particularly difficult to treat.

eleven of the children They were alive when the study after three years, including some who partially reacted to the therapy and they applied repeated doses of modified cells.

“All those children were destined to die without the treatment,” said Dr. Carl June of the University of Pennsylvania, a pioneer in therapy of CAR T cells but who was not involved in the new investigation.

“No one has ever had patients respond this way before, so we don’t know where they’ll be a decade from now,” June said. “There will certainly be more testing based on these exciting results.”

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The therapy of CAR T cells harnesses the immune system to create “living drugs” capable of seeking out and destroying tumors. T cells are collected from the patient’s blood, boosted in the laboratory, and then returned intravenously to the patient, where they continue to multiply in his body.

The US Food and Drug Administration (FAA) has approved six drug therapies. CAR T cells for blood cancers. Some patients have been cured. But it has not been successful in solid tumors.

He study The most recent study was conducted by researchers at the Vatican’s Infant Jesus Pediatric Hospital in Rome.

“They seem to have found a unique combination” to get the modified cells to multiply initially and then last long enough to continue their work of killing cancer, said Dr. Robbie Majzner of the Stanford University School of Medicine, who he was not involved in the new study.

Dr. Franco Locatelli, co-author of the studyHe said that the experts also included a safety mechanism to eliminate the cells in case of a severe reaction in the patient. When a patient presented problems, they activated and demonstrated the operation of the safety mechanism, although they later determined that the patient’s problem was due to an unrelated brain hemorrhage. CAR T cells.

Many children had a common side effect in the therapy of CAR T cells, an immune reaction called a “cytokine storm.” It can have severe levels but was mild in most cases, the researchers reported.

They concluded that CAR T cell therapy was “feasible and safe to treat neuroblastoma.”

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