Navigation Links
Study Published in Neuro-Oncology Journal Shows Brain Tumor Eradication and Prolonged Survival in Mice Treated With Toca 511 and 5-FC
Date:2/3/2012

SAN DIEGO, Feb. 3, 2012 /PRNewswire/ -- Tocagen Inc. today announced the publication of data showing the company's investigational treatment for high grade glioma eradicates brain tumors and provides a dramatic survival benefit in mouse models of glioblastoma. Almost all mice receiving the top dose of Toca 511 followed by 5-FC were still alive at 180 days, which was the termination date for the experiment, whereas all control mice died by day 43. The article was published today in the February issue of the Neuro-Oncology journal.

"After administration of Toca 511, the efficiency and specificity of viral spread through the tumor in an immune-competent animal model was impressive," said John Coffin, Ph.D., American Cancer Society Professor at the Sackler School of Biomedical Sciences at Tufts University and Special Advisor to the Director, HIV Drug Resistance Program, Center for Cancer Research, National Cancer Institute. "As a career retrovirologist and advisor to the scientists at Tocagen, I am pleased to see the progress they have achieved with their retroviral replicating vector technology, and I look forward to seeing how this approach translates in humans with advanced cancer." 

The results published in Neuro-Oncology showed that Toca 511 delivers a pro-drug activating gene to tumor cells where it converts the pro-drug 5-FC (flucytosine) into the anti-cancer drug 5-fluorouracil. Treatment with the high doses of Toca 511 resulted in elimination of tumors in most animals after dosing with 5-FC. The combination treatment of Toca 511 and 5-FC was well tolerated and did not cause toxicity over the course of the six month treatment protocol.

"Because of the invasive nature of glioblastoma, cancer cells are typically left behind after surgery, even with a 'complete' resection, making tumor re-growth almost inevitable," said Santosh Kesari, M.D., Ph.D., director of Neuro-Oncology in the Moores Cancer Center and in the Department of Neurosciences at the University of California, San Diego, one of the investigators in the Toca 511 clinical study. "There is an urgent need for new treatments that can eliminate residual cancer cells in patients with glioblastoma and other invasive gliomas. These preclinical results are very promising and provided the support for initiating human clinical trials of Toca 511."

About Toca 511 & Toca FC

The combination of Toca 511 (vocimagene amiretrorepvec), for injection & Toca FC (flucytosine), extended-release tablets is being investigated at leading centers across the US in clinical studies in patients with recurrent high grade glioma, including glioblastoma multiforme (GBM). Toca 511 is a retroviral replicating vector (RRV) that is designed to deliver a prodrug activator gene called cytosine deaminase (CD) selectively to cancer cells. After allowing time for Toca 511 to spread through the tumor, those cancer cells expressing the CD gene can convert the anti-biotic drug flucytosine into the anti-cancer drug 5-fluorouracil (5-FU). In these studies, patients receive a single administration of Toca 511 at the time of surgery (craniotomy or biopsy) followed by multiple cycles of oral Toca FC.

About Tocagen

Tocagen Inc. is a privately funded, clinical stage biopharmaceutical company pursuing the discovery, development and commercialization of gene transfer products for the treatment of cancer. Tocagen is initially focusing on treatments for patients with advanced cancer for whom no adequate treatments currently exist. Toca 511, the company's lead investigational product candidate, is being evaluated in clinical trials in patients with recurrent high grade glioma (such as glioblastoma multiforme). Tocagen has received grant support from leading brain cancer foundations including, Accelerate Brain Cancer Cure (ABC2), the American Brain Tumor Association (ABTA), and the National Brain Tumor Society (NBTS). For more information about Tocagen or Toca 511 please visit www.tocagen.com or www.clinicaltrials.gov.

 


'/>"/>
SOURCE Tocagen Inc.
Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. Dendreon Announces Publication of Phase 1 Study Highlighting Immunologic and Clinical Activity of Lapuleucel-T (Neuvenge(R)) in Advanced Breast Cancer Patients
2. EDAP Announces Launch of Clinical Study Combining HIFU and Chemotherapy for Localized Aggressive High Risk Prostate Cancer
3. Cephalon Announces Positive Results from a Pivotal Study of FENTORA in Opioid-tolerant Patients with Non-cancer Breakthrough Pain
4. Allos Therapeutics Initiates Study of PDX in Patients with Cutaneous T-Cell Lymphoma
5. Multiple Myeloma Research Consortium (MMRC) Partners with Novartis to Advance Phase II Study of Deacetylase Inhibitor
6. Potential Safety Issue Identified in Ongoing Phase 2 Clinical Study of HCV-796
7. Study Suggests High-Dose Fish Oil May Significantly Improve Behavior in Children with ADHD
8. MicroDose Announces Positive Results From the QDose Inhaled Insulin Glucose Clamp Study
9. Video: Landmark Study in The Lancet: Patients Treated With Betaseron(R) After First MS Attack Experienced Significant Delay in MS Progression
10. MacroGenics Begins Global Phase 2/3 Protege Study in Recent-onset Type 1 Diabetes Mellitus
11. Sarasotas Roskamp Institute Releases Study Defining a Mechanism for Development of Obesity and the Metabolic Syndrome, Forerunners of Type 2 Diabetes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/8/2016)... --  Intarcia Therapeutics, Inc. today announced the appointment ... newly created role of Vice President, Head of Global ... decades of leadership experience at leading pharmaceutical, biotechnology, and ... center. Most recently Dr. Yee served as VP, Head ... Medical Officer at AstraZeneca, where he led medical affairs ...
(Date:2/8/2016)... 8, 2016 /PRNewswire/--  Cell Applications, Inc. and ... services are now available in North ... (3D) bioprinting approach called the "Kenzan Method." Utilizing ... a state-of-the-art robotic system that fabricates 3D tissue ... pay-for-service bio-printing model that makes scaffold-free tissue available ...
(Date:2/8/2016)... -- Velano Vascular, a medical technology company transforming and ... practitioners, announced today that the company has raised an ... proceeds from this financing, an extension of a $5 ... support the development and commercialization of the company,s inpatient ... Philadelphia , and a number of ...
Breaking Medicine Technology:
(Date:2/8/2016)... Francisco, CA (PRWEB) , ... February 08, 2016 , ... ... raise $792,000 to help combat pancreatic cancer. , Gary D. Radine, who recently retired ... also was the American Cancer Society’s 2015 CEO of the Year , helped ...
(Date:2/8/2016)... ... February 08, 2016 , ... ... of organizations. DocuSyst provides a cloud hosted environment for FileHold software that ... integration with various 3rd party applications using the FileHold web services API. DocuSyst ...
(Date:2/8/2016)... ... February 08, 2016 , ... TopConsumerReviews.com recently awarded their ... removal products. , Moles are derived from a cluster of melanin when exposed to ... wrong places and create a lifetime of embarrassment. Historically, mole removal has ...
(Date:2/8/2016)... ... February 08, 2016 , ... According to ... the U.S. require dental technicians to be certified or obtain continuing education. To ... created the “What’s In Your Mouth?” campaign to inform dentists and patients about ...
(Date:2/7/2016)... ... February 07, 2016 , ... ... has added Kybella® to his medical and surgical expertise. Technically known as deoxycholic ... injectable medication used as a non-surgical alternative for reduction of fat below the ...
Breaking Medicine News(10 mins):