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FDA awards orphan drug status to brain cancer vaccine

The U.S. Food and Drug Administration has awarded orphan drug status to a promising immunotherapy vaccine, SurVaxM.

Orphan status is a special designation awarded to encourage innovation and exploration of approaches to treat rare diseases that affect relatively few people.

SurVaxM, also known as DRU-2017-5947, is an immunotherapy drug that targets survivin, a cell-survival protein present in most cancers.

The vaccine stimulates the immune system to kill tumour cells that contain survivin, a protein that helps cancer cells to resist conventional treatments. 

Glioblastoma is the most common form of brain cancer in adults, with approximately 14,000 cases of the disease diagnosed each year in the United States.

A phase II study of SurVaxM given in addition to standard treatment for patients with newly diagnosed glioblastoma is ongoing at Roswell Park and four other institutions: the Cleveland Clinic, Dana-Farber Cancer Institute, Massachusetts General Hospital and Beth Israel Deaconess Medical Center.

“We are excited by the results to date and appreciative of this acknowledgement that SurVaxM holds promise,” says SurVaxM co-inventor Robert Fenstermaker, MD, Chair of Neurosurgery at Roswell Park and Chief Medical Officer at MimiVax. “Those of us working to help patients with glioblastoma to live longer realise that the gains from existing therapies have been quite limited. We are eager to move this work forward to a larger multicenter randomise study with the momentum provided by the orphan status designation.”

The vaccine is designed to control tumour growth and recurrence.

“There are a couple of things that distinguish our approach,” adds co-inventor Michael Ciesielski, PhD, Assistant Professor of Neurosurgery at Roswell Park and Chief Scientific Officer for MimiVax. “SurVaxM is an engineered molecule capable of stimulating the immune system in several different ways to recognise and kill cancer cells. And the fact that its target, survivin, is present in many different types of cancer suggests potentially broad application against cancer.”

On the strength of an interim analysis of the in-progress phase II study, the investigators expect to pursue late-stage clinical trials with SurVaxM, pending FDA approval.

The vaccine is also being studied in other types of cancer, with a separate clinical study underway looking at SurVaxM as part of combination therapy for multiple myeloma.

The vaccine team credits donations to the Roswell Park Alliance Foundation with moving their vaccine research forward.

The Alliance Foundation raises funds in support of research and patient-care programs at Roswell Park Cancer Institute, including the current study of SurVaxM in patients with newly diagnosed glioblastoma.

Source: Roswell Park

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