Messenger Ribonucleic Acid (mRNA) Transfected Dendritic Cell Vaccination

Status Terminated

Clinical Trial Summary

1. Rationale

Immunotherapy applying ex vivo generated and tumor antigen-loaded dendritic cells (DC) has now successfully been introduced in the clinic. A limited, but consistent, number of objective immunological and clinical responses have been observed. Most of the successful results have been observed in patients with minimal residual disease, rather than patients with advanced metastatic disease. Moreover, the investigators' preliminary results show that presence of tumor epitope specific T cells in biopsies taken from delayed type hypersensitivity (DTH) reaction sites highly correlates with prolonged progression free survival (PFS).

Within uveal melanoma patients, a group with high risk of metastatic disease can be identified on basis of tumor specific genetic changes in loss of chromosome 3.

At present no standard adjuvant or systemic treatment is available. Applying DC-based immunotherapy in this group of high risk patients might reduce the risk of recurrence without interference in the current treatment guidelines.

2. Objectives

In this joint clinical study of Radboud University Nijmegen Medical Centre (RUNMC) and Rotterdam Eye Hospital, the investigators aim to determine the in vivo immunological response induced in high risk uveal melanoma patients vaccinated with mRNA-transfected DC.

3. Study design

This study is an open label non-randomized phase II intervention study.

4. Study population

The investigators' study population consists of HLA-A2 positive patients with a high risk uveal melanoma with proven expression of melanoma associated antigens tyrosinase and/or gp100.

5. Main study endpoints

This is an exploratory study aiming to demonstrate proof of principle. The first study endpoints are in vivo immunological response induced in high risk uveal melanoma patients vaccinated with mRNA-transfected DC, administered i.v./i.d. and toxicity. Secondary study endpoints are progression free survival, overall survival, and toxicity.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00929019
Study type	Interventional
Source	Radboud University
Contact
Status	Terminated
Phase	Phase 1/Phase 2
Start date	June 2009
Completion date	April 2016

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Messenger Ribonucleic Acid (mRNA) Transfected Dendritic Cell Vaccination in High Risk Uveal Melanoma Patients

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms