Preventive Dendritic Cell Vaccination for Lynch Syndrome

Trial statusNot yet recruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age35-75
SponsorRadboud University Medical Center

About this trial

The aim of this study is to assess safety, feasibility and immunogenicity of vaccination with neopeptide-loaded dendritic cells in Lynch Syndrome subjects who are known to be carrier of a germline MMR-gene mutation without signs of disease.

Eligibility criteria

Qualifiers

a confirmed gPV in MLH1 or MSH2 and without a prior history of MMR-D cancer.

a confirmed gPV in MSH6, whether or not they have a history of MMR-D cancer. MSH6 subjects with a history of MMR-D cancer have to be cancer-free for more than 1 year.

previous surgical treatment may include any resection up to and including hemicolectomy; subjects who have undergone (sub)total colectomy are excluded due to the substantially reduced risk of cancer occurrence.

aged between 35 and 75 for subjects with gPV in MLH1 and MSH2; and aged between 40 and 75 for subjects with gPV in MSH6.

Disqualifiers

Individuals with a history of malignancy in the past. Allowed malignancies are adequately treated basal cell carcinoma and squamous cell carcinoma of the skin, carcinoma in situ (e.g., DCIS/LCIS/cervical CIS), papillary thyroid carcinoma, and low-risk prostate carcinoma; all locally resected with negative surgical margins and not treated with systemic therapy.

Organ allografts.

Known allergy to shellfish.

Inability to understand and communicate in Dutch.

Trial design

Treatments tested in this trial

  • DC vaccination

Treatment groups

13 Participants
are divided into 1 treatment group

Sponsors and collaborators

Radboud University Medical Center

Lead sponsor

Dutch Cancer Society

Collaborator