Navigation Links
Update: 50 percent of patients in Cedars-Sinai brain cancer study alive after 5 years

LOS ANGELES (NOV. 23, 2013) Eight of 16 patients participating in a study of an experimental immune system therapy directed against the most aggressive malignant brain tumors glioblastoma multiforme survived longer than five years after diagnosis, according to Cedars-Sinai researchers, who presented findings Nov. 23 at the Fourth Quadrennial Meeting of the World Federation of Neuro-Oncology.

Seven of the 16 participants still are living, with length of survival ranging from 60.7 to 82.7 months after diagnosis. Six of the patients also were "progression free" for more than five years, meaning the tumors did not return or require more treatment during that time. Four participants still remain free of disease with good quality of life at lengths ranging from 65.1 to 82.7 months following diagnosis. One patient who remained free of brain cancer for five years died of leukemia.

The original clinical trial a Phase I study designed to evaluate safety included 16 patients with glioblastoma multiforme enrolled between May 2007 and January 2010 by researchers at Cedars-Sinai's Johnnie L. Cochran, Jr. Brain Tumor Center.

Results published in January at the end of the study showed median overall survival of 38.4 months. Typically, when tumor-removal surgery is followed by standard care, which includes radiation and chemotherapy, median length of survival is about 15 months. Median progression-free survival the time from treatment to tumor recurrence was 16.9 months at study's end. With standard care, the median is about seven months.

The experimental treatment consists of a vaccine, ICT-107, intended to alert the immune system to the existence of cancer cells and activate a tumor-killing response. It targets six antigens involved in the development of glioblastoma cells.

According to information presented at the scientific meetings, all eight long-term survivors had tumors with at least five antigens, 75 percent had tumors with all six, and 100 percent had tumors with at least four antigens associated with cancer stem cells cancer-originating cells that appear to enable tumors to resist radiation and chemotherapy and even regenerate after treatment.

"Our findings suggest that targeting antigens that are highly expressed by cancer stem cells may be a viable strategy for treating patients who have glioblastomas. Long-term remission of disease in this group of patients was correlated with the expression of cancer stem cell tumor-associated antigens," said Surasak Phuphanich, MD, director of the Neuro-Oncology Program at the Cochran Brain Tumor Center and professor of neurology with Cedars-Sinai's Department of Neurosurgery and Department of Neurology.

Based on results of the Phase I study, the ICT-107 vaccine entered a Phase II multicenter, randomized, placebo-controlled trial in 2011.

The vaccine is based on dendritic cells, the immune system's most powerful antigen-presenting cells those responsible for helping the immune system recognize invaders. They are derived from white blood cells taken from each participating patient in a routine blood draw. In the laboratory, the cells are cultured with synthetic peptides of the six antigens essentially training the dendritic cells to recognize the tumor antigens as targets. When the "new" dendritic cells in the vaccine are injected under the patient's skin, they are intended to seek and destroy lingering tumor cells. Vaccine is administered three times at two-week intervals after standard radiation and chemotherapy.

Phuphanich is first author of an abstract presented at the scientific meetings' poster session from 5 to 7 p.m. PST Nov. 23.

ICT-107 is a product of the biotechnology company ImmunoCellular Therapeutics, Ltd. Cedars-Sinai owns equity in the company, and certain rights in the dendritic cell vaccine technology and corresponding intellectual property have been exclusively licensed by Cedars-Sinai to ImmunoCellular Therapeutics, including rights associated with ICT-107, the vaccine investigated in this clinical study.

Several members of the research and presentation team have ties to the company. Abstract co-author Keith Black, MD, a Cedars-Sinai physician, owns stock in the company. Senior author John Yu, MD, a Cedars-Sinai physician, owns stock in the company and is its founder, chief scientific officer and chair of the board of directors. James Bender, PhD, MPH, a co-author, is Immunocellular Therapeutics' vice president for product development and manufacturing. Elma Hawkins, a co-author, also is identified with Immunocellular.


Contact: Sandy Van
Cedars-Sinai Medical Center

Related medicine news :

1. HRT Update: Therapy May Reduce Fractures, Boost Some Risks
2. Transvaginal Mesh Lawsuit Update: New Study Concerning Use of Vaginal Mesh in Prolapse Procedures, Bernstein Liebhard LLP Reports
3. Cell Phone Radiation Lawsuit Update: ICEMS Position Paper Supports Italian Supreme Court Ruling on Cell Phones and Brain Tumors, Bernstein Liebhard LLP Reports
4. DrugRisk Update: NuvaRing Lawsuit Trials to Begin This Year
5. DrugRisk Update: Court Allows Charges of Prior Fraud Into Pradaxa Lawsuit
6. DrugRisk Pradaxa Lawsuit Update: Court Denys Boehringer’s Protective Order Request
7. DrugRisk Pradaxa Update: Litigation Grows As New Study Adds to Risks
8. Research update: Chemists find help from nature in fighting cancer
9. Yasmin Blood-Clotting Lawsuits Update: Resource4thePeople Providing Legal Assistance as Concerns Rise Over Health Risks
10. Tylenol Liver Failure Allegation Lawsuits Update: Resource4thePeople Reports Hearing to Consolidate Federal Cases Is Scheduled
11. DrugRisk Update: Bayer Discloses $500 Million Remaining for Yaz Lawsuits
Post Your Comments:
(Date:11/26/2015)... Ashburn, VA (PRWEB) , ... November 26, 2015 ... ... Planners, an American Express Travel Representative. As a franchise owner, Somu now offers ... range of cruise, destination wedding packages, private cruise sales, as well as, cabin ...
(Date:11/26/2015)... , ... November 26, 2015 , ... Jobs in hospital ... healthcare professionals and offered by healthcare staffing agency Aureus Medical Group . ... month of October 2015 among those searching for healthcare jobs through the company’s website, ...
(Date:11/26/2015)... ... November 26, 2015 , ... WorldCare International, Inc., the ... 61st annual Employee Benefits Conference. The Employee Benefits Conference was hosted by the ... Wednesday, November 11th, 2015. The conference was held at the Hawaii Convention Center ...
(Date:11/26/2015)... ... November 26, 2015 , ... ... has collaborated with Women’s Web – an online resource for Indian women ... mental and emotional well-being relationship, life balance, stress, professional development, and lifestyle. ...
(Date:11/25/2015)... ... November 25, 2015 , ... Additional breast cancers found ... mammography, according to a study published online in the journal Radiology. Researchers said ... may necessitate a change in treatment. , Breast MRI is the most sensitive ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... Research and Markets ( ) ... Future Horizons and Growth Strategies in the Japanese ... Segment Forecasts, Competitive Intelligence, Emerging Opportunities" report ... --> This new 247-page report ... drug monitoring market, including emerging tests, technologies, instrumentation, ...
(Date:11/26/2015)... November 26, 2015 ... universitetssjukhus ser potential att använda SyMRI för ... för patienter med multipel skleros (MS) ... med SyntheticMR AB för att kunna använda ... sjukhuset. Med SyMRI kan man generera flera ...
(Date:11/26/2015)... 2015 ) has ... of High Viscosity Drugs" report to their ... the addition of the "Self Administration of ... --> Research and Markets ( ... "Self Administration of High Viscosity Drugs" report ...
Breaking Medicine Technology: