Cited by 276Immunotherapy and Immune ResponsesPancreatic and Hepatic Oncology ResearchCancer Immunotherapy and Biomarkers

Intradermal ras peptide vaccination with granulocyte-macrophage colony-stimulating factor as adjuvant: Clinical and immunological responses in patients with pancreatic adenocarcinoma

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Gjertsen, Marianne K., Buanes, Trond, Rosseland, Arne R., Bakka, Arne, Gladhaug, Ivar, S�reide, Odd, Eriksen, Jon A., M�ller, Mona +4 more·2001·International Journal of Cancer

Abstract

K-RAS mutations are frequently found in adenocarcinomas of the pancreas, and induction of immunity against mutant ras can therefore be of possible clinical benefit in patients with pancreatic cancer. We present data from a clinical phase I/II trial involving patients with adenocarcinoma of the pancreas vaccinated by i.d. injection of synthetic mutant ras peptides in combination with granulocyte-macrophage colony-stimulating factor. Forty-eight patients (10 surgically resected and 38 with advanced disease) were treated on an outpatient basis. Peptide-specific immunity was induced in 25 of 43 (58%) evaluable patients, indicating that the protocol used is very potent and capable of eliciting immune responses even in patients with end-stage disease. Patients followed-up for longer periods showed evidence of induction of long-lived immunological memory against the ras mutations. CD4(+) T cells reactive with an Arg12 mutation also present in the tumor could be isolated from a tumor biopsy, demonstrating that activated, ras-specific T cells were able to selectively accumulate in the tumor. Vaccination was well tolerated in all patients. Patients with advanced cancer demonstrating an immune response to the peptide vaccine showed prolonged survival from the start of treatment compared to non-responders (median survival 148 days vs. 61 days, respectively; p = 0.0002). Although a limited number of patients were included in our study, the association between prolonged survival and an immune response against the vaccine suggests that a clinical benefit of ras peptide vaccination may be obtained for this group of patients.

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  • Gjertsen's group conducted a phase I/II trial evaluating a synthetic mutant RAS peptides-based vaccine combined with granulocyte-macrophage colony-stimulating factor in patients with adenocarcinoma of the pancreas.

    “In 2001, Gjertsen’s group conducted a phase I/II trial (CTN RAS 95002, CTN RAS 97004) to evaluate the clinical benefit of a synthetic mutant RAS peptides-based vaccine, compound (255), combined with granulocyte-macrophage colony-stimulating factor in patients with adenocarcinoma of the pancreas.598,599”
  • The trial demonstrated a desirable association between prolonged survival and an immune response caused by the RAS peptide vaccination.

    “The trial demonstrated a desirable association between prolonged survival and an immune response caused by the RAS peptide vaccination.”
  • Combining RAS peptides with granulocyte-macrophage colony-stimulating factor (GM-CSF), developed by Targovax, elicits T-cell-mediated antitumor immune responses against mutant RAS peptides.

    “Another strategy, combining RAS peptides with granulocyte-macrophage colony-stimulating factor (GM-CSF), developed by Targovax, has been shown to elicit T-cell-mediated antitumor immune responses against mutant RAS peptides [83].”
  • In a phase I/II study, Gjertsen et al. evaluated the immunogenicity and safety of KRAS peptide vaccine in 17 tumors with KRAS mutations; two of five pancreatic cancer patients showed proliferative T cell responses, with a longer median survival of 10.5 months.

    “In a phase I/II study, Gjertsen et al. have evaluated the immunogenicity and safety of KRAS peptide vaccine in 17 tumors with KRAS mutations. Two of the five patients with pancreatic cancer showed proliferative T cell responses, with a longer median survival of 10.5 months [90].”

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Research works printed but not linked: 4

  1. Tsang KY, Nieroda CA, DeFilippi R, Chung YK, Yamaue H, Greiner JW, et al. Induction of human cytotoxic T cell lines directed against point-mutated p21 ras-derived synthetic peptides. Vaccine Res 1994; 3:183-93.
  2. Gjertsen MK, Bjørheim J, Sæterdal I, Myklebust J, Gaudernack G. Cytotoxic CD4 ϩ and CD8 ϩ T lymphocytes, generated by mutant p21-ras (12Val) peptide vaccination of a patient, recognize 12-Val dependent nested epitopes present within the vaccine peptide and kill autologous tumour cells carrying this mutation. Int J Cancer 1997;72: 784 -90.
  3. Jaeger E, Ringhoffer M, Dienes HP, Arand M, Karbach J, Jaeger D, et al. Granulocyte-macrophage colony-stimulating factor enhances immune responses to melanoma associated peptides in vivo. Int J Cancer 1996;67:54 -62.
  4. Gjertsen MK, Bakka A, Breivik J, Sæterdal I, Gedde-Dahl III T, Stokke KT, et al. Ex vivo ras peptide vaccination in patients with advanced pancreatic cancer: results of a phase I/II study. Int J Cancer 1996;65:450 -3.

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Authors
Gjertsen, M. K., Buanes, T., Rosseland, A. R., Bakka, A., Gladhaug, I., S�reide, O., Eriksen, J. A., M�ller, M., Baksaas, I., Lothe, R. A., S�terdal, I., & Gaudernack, G.
Affiliations
  • University of Oslo (NO)
  • Norsk Hydro (Norway) (NO)
Venue
International Journal of Cancer
Publisher
Wiley
Published
2001
Volume
92
Issue
3
Pages
441-450
ISSN
  • 0020-7136 (ISSN-L)
  • 1097-0215
OpenAlex
W2010340952
Cited by
276
References
29
Citations by year
2025: 7 · 2024: 8 · 2023: 13 · 2022: 12 · 2021: 19 · 2020: 18 · 2019: 6 · 2018: 11 · 2017: 10 · 2016: 7 · 2015: 13 · 2014: 13 · 2013: 6 · 2012: 9
FWCI
5.14
Type
journal article
Language
en
Open access
Locations
  • International Journal of Cancer (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
pancreatic ductal adenocarcinoma, KRAS mutation, intradermal vaccination, GM-CSF, adjuvants, tumor-specific T cells, CD4+ T cells, immunological memory, survival, cancer immunotherapy
MeSH terms
Adenocarcinoma, Adjuvants, Immunologic, Adult, Aged, Aged, 80 and over, Female, Humans, Hypersensitivity, Delayed, Injections, Intradermal, Male, Middle Aged, Pancreatic Neoplasms, Peptides, T-Lymphocytes, Vaccination, Survival Rate, Granulocyte-Macrophage Colony-Stimulating Factor, Lymphocytes, Tumor-Infiltrating, Treatment Outcome, ras Proteins

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