Immunotherapy of HLA-A2 Positive Stage III/IV Melanoma Patients With CpG7909, Tumor Antigenic Peptides and Montanide
Immune therapy with tumor antigenic peptides is generally quite well tolerated. However,
immune activation is often only weak or even undetectable, and clinical responses
(supposedly corresponding to protective immunity) are unfortunately infrequent. Further
progress is required to improve the vaccines, with the goal to increase the strength of
immune activation.
The tumor antigenic peptides Melan-A/Mart-1 (EAA and ELA) and Tyrosinase (YMD) are combined
with two drugs in this study, both of which are known to enhance immune responses: first,
CpG 7909 oligodeoxynucleotides, and second, Montanide ISA-51.
- Group 1: vaccination with Melan-A analog peptide + CpG and Montanide adjuvants;
- Group 2: vaccination with Melan-A natural peptide + CpG and Montanide adjuvants;
- Group 3 : vaccination with Melan-A natural and Tyrosinase peptides + CpG and Montanide
adjuvants;
- Group 4 : vaccination with Melan-A analog and Tyrosinase peptides + CpG and Montanide
adjuvants.
Interventional
Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Melan-A and Tyrosinase specific CD8+ T-cell reactivity will be measured by Tetramers and Elispot assays
Change from baseline in CD8 T-cells reactivity at day 375
No
Olivier Michielin, MD
Principal Investigator
Ludwig Institute for Cancer Research
Switzerland: Swissmedic
LUD 2000-018
NCT00112229
April 2003
June 2012
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