First-in-human Interleukin-15-transpresenting Wilms' Tumor Protein 1-targeting Autologous Dendritic Cell Vaccination in Cancer Patients
IL15-TransDC
Sponsor study identifier
interventional
10
1 country
1
Study Start
December 6, 2023
Actual (reported)Primary Completion
September 22, 2025
Actual (reported)Study Completion
September 22, 2025
Actual (reported)The goal of this clinical trial is to investigate a new type of dendritic cell vaccine in patients with refractory or advanced solid tumors of the esophagus, liver, pancreas and ovaries. The main questions it aims to answer are:
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
September 22, 2025
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 10, 2023
Actual (reported)July 27, 2023
Actual (reported)December 6, 2023
Actual (reported)September 22, 2025
Actual (reported)September 22, 2025
Actual (reported)Feasibilty of leukapheresis
Proportion of patients in the intention-to-treat population that had a successful leukapheresis.
Upon completion of leukapheresis, on average 4 weeks after inclusion (baseline)
Feasibility of IL15/IL15Ra/WT1 DC vaccine production
Proportion of patients in the intention-to-treat population that had successful vaccine production (i.e. production of at least 6 IL-15-transpresenting WT1-targeting DC vaccines meeting all quality control measurements).
Upon completion of vaccine production and quality testing (i.e. from leukapheresis until 4 weeks after), on average 8 weeks after inclusion (baseline)
Feasibility of study treatment scheme
Proportion of patients in the intention-to-treat population who complete the study treatment schedule of 6 IL-15-transpresenting WT1-targeting DC vaccines.
Study treatment scheme (i.e. from administration of first to 6th vaccine (+- 10 weeks))
Indicators of clinical efficacy: Best Overall Response (BOR)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Indicators of clinical efficacy: Duration of Response (DOR)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Indicators of clinical efficacy: Objective Response Rate (ORR)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Indicators of clinical efficacy: Disease Control Rate (DCR)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Indicators of clinical efficacy: Progression-free Survival (PFS)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months. PFS may be updated after study completion.
IL15/IL15Ra/WT1 DC vaccines (8-10 x 10\^6 cells in 500 μL saline solution with 5% human albumin) will be administered through intradermal injection at 5 sites (100 μL/site) in the ventromedial region of the upper arm (5-10 cm from the axillary lymph nodes). Injection sites will alternate between left and right arms. WT1/DC vaccines are administered every 2 weeks (+- 3 days) for a total of 6 administrations.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Antwerp University Hospital
Edegem, 2650, Belgium
Van den Bergh JM, Lion E, Van Tendeloo VF, Smits EL. IL-15 receptor alpha as the magic wand to boost the success of IL-15 antitumor therapies: The upswing of IL-15 transpresentation. Pharmacol Ther. 2017 Feb;170:73-79. doi: 10.1016/j.pharmthera.2016.10.012. Epub 2016 Oct 21.
Van den Bergh J, Willemen Y, Lion E, Van Acker H, De Reu H, Anguille S, Goossens H, Berneman Z, Van Tendeloo V, Smits E. Transpresentation of interleukin-15 by IL-15/IL-15Ralpha mRNA-engineered human dendritic cells boosts antitumoral natural killer cell activity. Oncotarget. 2015 Dec 29;6(42):44123-33. doi: 10.18632/oncotarget.6536.
Timon Vandamme, MD
University Hospital, Antwerp
10 participants (actual enrollment reported by the registry).
First Submitted
July 10, 2023
First Posted
July 27, 2023
Study Start
December 6, 2023
Actual (reported)Primary Completion
Feasibility of DC vaccine administration (administration of 1st vaccine)
Proportion of efficacy evaluable patients (i.e. having received at least 1 vaccine + no major protocol violation) in the intention-to-treat population.
At administration of first vaccine
Safety of IL15/IL15Ra/WT1 DC vaccine administration: Related (Severe) Adverse Events ((S)AEs)
Proportion of patients of the safety population that experienced (S)AEs possibly, probably or definitely related to IL15/IL15Ra/WT1 DC vaccination
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Safety of IL15/IL15Ra/WT1 DC vaccine administration: total (S)AEs (number)
Number of (S)AEs in the safety population (i.e. having received at least 1 DC vaccine)
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Safety of IL15/IL15Ra/WT1 DC vaccine administration: total (S)AEs (grade)
Grade of (S)AEs in the safety population
over the entire study duration (i.e. from inclusion (baseline) to end of follow-up, which lasts until 90 days after the last DC vaccine), on average 7 months
Contact the study team to confirm eligibility.
September 22, 2025
Actual (reported)Study Completion
September 22, 2025
Actual (reported)Last Updated
June 8, 2026
Record last verified: 2026-06
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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