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Tubingen, Germany

Rammensee H.-G.,Institute of Cell Biology | Singh-Jasuja H.,immatics biotechnologies
Expert Review of Vaccines | Year: 2013

Every cancer is different and cancer cells differ from normal cells, in particular, through genetic alterations. HLA molecules on the cell surface enable T lymphocytes to recognize cellular alterations as antigens, including mutations, increase in gene product copy numbers or expression of genes usually not used in the adult organism. The search for cancer-associated antigens shared by many patients with a particular cancer has yielded a number of hits used in clinical vaccination trials with indication of survival benefit. Targeting cancer-specific antigens, which are exclusively expressed on cancer cells and not on normal cells, holds the promise for much better results and perhaps even a cure. Such antigens, however, may specifically appear in very few patients or may be mutated appearing just in one patient. Therefore, to target these in a molecularly defined way, the approach has to be individualized. © 2013 Informa UK Ltd.


Grant
Agency: Cordis | Branch: FP7 | Program: CP-FP | Phase: HEALTH.2012.1.2-1 | Award Amount: 7.92M | Year: 2012

Glioblastoma (GBM) is a rare (2-3 incidences in 100,000) and fatal disease. Each year, approximately 13,000 new cases of GBM are diagnosed in Europe. The 5-year survival rate of this highly aggressive tumor entity under conventional therapy is less than 6%. Currently available therapeutic options neglect the individuality of each patients disease and only temporarily influence tumor progression with poor effect on overall survival. Introduction of novel highly innovative personalized approaches would have tremendous impacts for the life course of affected patients without additive toxicities. Active cancer immunotherapy aims to trigger the patients immune system, specifically cytotoxic T lymphocytes (CTLs) and T helper cells, to defend the body against the cancerous disease. The Glioma Actively Personalized Vaccine Consortium (GAPVAC) aims to conduct a highly innovative pioneering project with active personalized immunotherapy to improve patient treatment. In a Phase I/II study at the center of this proposal, glioblastoma patients will receive a fully personalized peptide-based vaccine as a result of full-genome sequencing and complete peptidomics analysis of the patients tumor. Thus, the latest developments in next-generation sequencing, proteomics, immunology, biomarker research and small-scale GMP peptide manufacturing will be uniquely combined to deliver the next generation of personalized medicine to cancer patients. GAPVACs goal is to test safety, feasibility and efficacy (biological and early clinical) of this totally novel, completely personalized approach of immunotherapy. GAPVAC is therefore specifically answering the call HEALTH.2012.1.2-1 Development of technologies with a view to patient group stratification for personalized medicine applications by a 4 years project.


Grant
Agency: Cordis | Branch: FP7 | Program: CP-FP | Phase: HEALTH.2013.2.4.1-2 | Award Amount: 8.20M | Year: 2013

Hepatocellular carcinoma (HCC) is the most common primary liver cancer and accounts for about 6% of all new cancer cases worldwide. Given the lack of available effective treatments, the overall prognosis for HCC patients is poor, with a dismal 5-year survival of 5-6%. The main goal of this proposal is to develop a therapeutic cancer vaccine aiming at improving clinical outcome in early-stage HCC patients after loco-regional ablative therapy. HepaVac is an European consortium of academic, SME and pharmaceutical company partners with complementary and substantial expertise in cancer immunotherapy and vaccine development. The main objective of HepaVac is to develop a novel cancer vaccine approach for HCC based on epitopes naturally processed and presented by HLA class I and II (HLA-ligandome), to elicit both CD4\ T helper and CD8\ CTL tumor-specific effector and memory responses. The HCC HLA-ligandome will be identified in primary tumor tissues using a combined and integrated approach, developed and thoroughly validated by Partners #2 and #5. The selected peptide epitopes will constitute the candidate cancer vaccine for HCC, aiming at covering the broadest haplotype diversity with a multi-epitope and multi-TAA strategy. T cell epitopes derived from universal TAA and unique patient-specific mutated antigens will allow the design of a prime-boost vaccine strategy based either on a prime-boost schedule made of an off-the-shelf T cell epitope cocktail or on a schedule where the boost is complemented by a personalized T cell epitope cocktail. Both epitope cocktails will be adjuvanted in a novel and potent immunomodulator developed by Partner #6. Such a vaccination strategy will be tested in a randomized controlled multi-center phase I/II human clinical trial, assessing as primary endpoints safety and induction of specific cellular immune responses and, as secondary endpoints, OS and PFS of patients receiving the vaccine after tumor ablation vs tumor ablation alone.


The present invention relates to peptides, nucleic acids and cells for use in immunotherapeutic methods. In particular, the present invention relates to the immunotherapy of cancer. The present invention furthermore relates to tumor-associated cytotoxic T cell (CTL) peptide epitopes, alone or in combination with other tumor-associated peptides that serve as active pharmaceutical ingredients of vaccine compositions that stimulate anti-tumor immune responses. The present invention relates to 95 novel peptide sequences and their variants derived from HLA class I molecules of human tumor cells that can be used in vaccine compositions for eliciting anti-tumor immune responses.


Patent
immatics biotechnologies | Date: 2015-11-06

The present invention relates to peptides, nucleic acids and cells for use in immunotherapeutic methods. In particular, the present invention relates to the immunotherapy of cancer. The present invention furthermore relates to tumour-associated T-helper cell peptide epitopes, alone or in combination with other tumour-associated peptides that serve as active pharmaceutical ingredients of vaccine compositions which stimulate anti-tumour immune responses. The present invention relates to novel peptide sequences and their variants derived from HLA class I and class II molecules of human tumour cells which can be used in vaccine compositions for eliciting anti-tumour immune responses.

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