Research & Development
The FDA announces accelerated approval for first treatment option for patients with epithelioid sarcoma
24 January 2020 -

Public health agency The US Food and Drug Administration Thursday awarded the accelerated approval for Tazverik (tazemetostat) for the treatment of adults and pediatric patients aged 16 years and older with metastatic epithelioid sarcoma based on the results of a clinical trial.

The FDA granted the approval of Tazverik to Epizyme Inc.

Epithelioid sarcoma is reportedly a rare sub-type of soft tissue sarcoma that often occurs in young adults.

Tazverik (tazemetostat) is approved for the treatment of adults and pediatric patients aged 16 years and older with metastatic (when cancer cells spread to other parts of the body) or locally advanced (when cancer has grown outside the organ it started in, but has not yet spread to distant parts of the body) epithelioid sarcoma not eligible for complete resection (surgically removing all of a tissue, structure, or organ).

Under the company's clinical trial, about 62 patients received 800mg of Tazverik twice a day until the disease progressed or the patient reached an unacceptable level of toxicity. The trial measured how many patients experienced complete or partial shrinkage of their tumors during treatment. The overall response rate was 15%, with 1.6% of patients having a complete response and 13% having a partial response.

According to the agency, Tazverik blocks activity of the EZH2 methyltransferase, which may help keep the cancer cells from growing. Most cases of epithelioid sarcoma begin in the soft tissue under the skin of an extremity, though it can start in other areas of the body.

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