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Glioblastoma Multiforme of BrainPhase 1/2ADDIT-GLIONCT02649582

Adjuvant Dendritic Cell-immunotherapy Plus Temozolomide in Glioblastoma Patients

A Phase 1/2 study testing Dendritic cell vaccine plus temozolomide chemotherapy in people with Glioblastoma Multiforme of Brain, run by University Hospital, Antwerp at 1 site in Belgium.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

In this phase I/II trial, the primary objective is to determine overall and progression-free survival of patients with newly diagnosed glioblastoma when autologous Wilms' tumor 1 (WT1) messenger (m)RNA-loaded dendritic cell (DC) vaccination is added to adjuvant temozolomide maintenance treatment following (sub)total… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Glioblastoma Multiforme of Brain
What is being tested?
Dendritic cell vaccine plus temozolomide chemotherapy
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteBelgium
Study dates
Dec 2015to Jul 2027
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Newly diagnosed, histologically verified glioblastoma (WHO grade IV)
  • Aged ≥ 18 years
  • Total or subtotal resection:
  • Total resection: macroscopic complete resection as assessed by the neurosurgeon and absence of any residual contrast-enhancing mass on post-operative (≤ 72h) brain MRI
  • Subtotal resection: macroscopic complete resection as assessed by the neurosurgeon, but with residual contrast-enhancement ≤ 2 cm³ on post-operative (≤ 72h) brain MRI
  • Signed informed consent
Show all 12Show fewer
  • Willing and able to comply with the protocol as judged by the Investigator
  • Estimated to start with chemoradiation ≥ 28 days and ≤ 49 days following surgical resection
  • Fit to undergo: leukapheresis, chemoradiation, chemotherapy and immunotherapy
  • No corticosteroid treatment ≤ 1 week before apheresis
  • WHO performance status ≤ 2
  • Life expectancy ≥ 3 months as estimated by the Investigator

Who cannot join

  • History of another malignancy, except for adequately controlled basal cell skin carcinoma, squamous skin carcinoma, or carcinoma in situ of the uterine cervix or unless the investigator rationalizes otherwise
  • Prior radiation or chemotherapy
  • Any pre-existing contraindication for temozolomide treatment
  • Any pre-existing contraindication for contrast-enhanced brain MRI
  • Pregnant or breast-feeding
  • Documented immune deficiency or systemic immune-suppressive treatment
  • Known positive viral serology for HIV, HBV, HCV, or syphilis
  • Any other condition, either physical or psychological, or reasonable suspicion thereof on clinical or special investigation, which contraindicates the use of the vaccine, or may negatively affect patient compliance, or may place the patient at higher risk of potential treatment complications

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Antwerp University Hospital

    Edegem, Antwerp, 2650

Other trials in Belgium

About this study

Official title: Adjuvant Dendritic-Cell Immunotherapy Plus Temozolomide Following Surgery and Chemoradiation in Patients With Newly Diagnosed Glioblastoma

In this phase I/II trial, the primary objective is to determine overall and progression-free survival of patients with newly diagnosed glioblastoma when autologous Wilms' tumor 1 (WT1) messenger (m)RNA-loaded dendritic cell (DC) vaccination is added to adjuvant temozolomide maintenance treatment following (sub)total resection and temozolomide-based chemoradiation.

Read the detailed description

Glioblastoma multiforme (GBM), a microscopically infiltrative disease, is the most common malignant brain tumor worldwide. Despite optimized standard of care treatment median survival and prognosis remain poor with a median survival of only 15% and five year survival after diagnosis of 5%.

In this single arm single centre phase I/II trial the investigators will determine the overall and progression free survival of patients with newly diagnosed GBM when autologous WT1 mRNA loaded dendritic cell vaccination is added to standard of care treatment. During recruitment, the investigators will include 20 patients with newly diagnosed, histologically verified glioblastoma (WHO grade IV) who have received a total or subtotal resection of the tumor. Patients who underwent prior radiation or chemotherapy or with a history of other malignancy will be excluded. In addition to standard of care consisting of adjuvant chemoradiation with temozolomide and temozolomide maintenance patients will receive an intradermal vaccination with autologous WT1 mRNA-loaded dendritic cells commencing 1 week after radiotherapy. The dendritic cell therapy product will be generated and administered in the Antwerp University Hospital, more specifically the Center for Cell Therapy and Regenerative Medicine (CCRG), headed by Prof. Zwi Berneman and the Division of Hematology.

Recruitment began in December 2015 and is intended to continue until the end of 2024 or when 20 patients are enrolled. After a follow-up period (until 90 days after final DC vaccine administration or 24 months after apheresis , whichever occurs later), overall and progression free survival analysis will be performed and this will be compared with the published data of standard of care treatment without vaccination. In addition the investigators will look for feasibility, incidence of adverse events and immunogenicity.

Being tested
Dendritic cell vaccine plus temozolomide chemotherapy
Keywords
Dendritic cells, Chemoimmunotherapy, Adjuvant therapy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dendritic cell vaccine plus temozolomide chemotherapyBiological

    When eligible after total or subtotal resection (as assessed by neurosurgeon and post-operative brain MRI):

    1. Leukocyte apheresis (before chemoradiation): for DC vaccine production
    2. Chemoradiation (standard treatment: initiated as soon as the patient's hematological blood values are adequate after apheresis): 2 Gy once daily 5 days/week for 6 weeks with 75 mg/m² temozolomide daily from the first until the last day of radiotherapy (no longer than 49 days in total)
    3. Induction immunotherapy: intradermal vaccination with autologous WT1 mRNA-loaded DCs weekly (+/-1 day) for 3 weeks, starting ≥ 1 week after radiotherapy
    4. Chemo-immunotherapy: 150-200 mg/m²/d temozolomide days 1-5 every 28 days +/- 2 days (max. 12 months) starting ≥3 days after the third vaccine of the induction immunotherapy + DC vaccination on day 21±3 days of every 28-day cycle
Study groups in NCT02649582
Study groupRoleWhat they receive
Single ArmExperimentalDendritic cell vaccine plus temozolomide chemotherapy
Receives: Biological: Dendritic cell vaccine plus temozolomide chemotherapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall survival

    Patients will be followed for survival, from apheresis (~ diagnosis), for which the accurate date and reason of death (cancer-related or non-related) will be recorded for every patient.

    Measured: Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

Secondary outcomes (5)
  1. Number of glioblastoma patients post surgical resection with feasible and safe DC vaccine production

    Production of autologous DC vaccines from newly diagnosed glioblastoma patients that underwent maximal, safe surgical resection will be evaluated for:

    1. feasibility, assessed by success of leukapheresis and production of sufficient and qualified (phenotypic and functional requirements) vaccines.
    2. Safety, assessed by microbiological testing (bacteria, yeast, fungi, mycoplasma, endotoxin) of the DC vaccines.

    Measured: Vaccine production and quality testing (i.e. 4 weeks after leukapheresis)

  2. Feasibility of DC vaccine administration to glioblastoma patients combined with chemotherapy

    Administration of 3 weekly DC vaccines following adjuvant chemoradiation (induction phase) and additional DC vaccination at day 21 of each maintenance chemotherapy cycle (booster phase) will be evaluated for feasibility, assessed by successful DC vaccine administration of the proposed treatment scheme.

    Measured: Upon maintenance chemotherapy treatment (i.e. +/- 12 weeks post leukapheresis)

  3. Number of participants with adverse events as a measure of safety and tolerability

    Monitoring the incidence of adverse events to evaluate the safety profile and tolerability of the treatment. The severity of adverse events will be assessed according to the NCI CTCAE scale (v4.03, published June 14, 2010).

    Measured: Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

  4. Immunological responses to the DC vaccine

    Immunological responses to the vaccine will be evaluated ex vivo. Blood samples will be collected from patients on the day of the first DC vaccine, and on day 1 of the first and fourth maintenance temozolomide treatment cycles and will be examined for cell subset distribution and activation status and antigen-specific immunity.

    Measured: At first DC vaccination + day 1 of first and fourth temozolomide treatment cycles

  5. Objective clinical responses by tumor evaluation (clinical efficacy)

    Disease evolution and progression-free survival will be assessed according to the Response Assessment in Neuro-Oncology (RANO) criteria, based on imaging findings (MRI, CT), clinical status and corticosteroid use.

    Disease will be assessed following chemoradiation (≤ 2 weeks after completing chemoradiation), after every two cycles of temozolomide maintenance treatment and at least every 12 weeks during the booster phase, and every 9-12 weeks during follow-up after treatment discontinuation.

    Measured: Through study completion with follow up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jan 2016 (estimated)
  2. Study startDec 2015
  3. Primary completionJul 2027 (estimated)
  4. Study completionJul 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02649582
Sponsor's protocol ID
CCRG14-001
Acronym
ADDIT-GLIO
Status last verified
Jun 2026
First submitted
23 Jan 2015
Last updated
4 Jun 2026
Results posted
No
Data monitoring committee
No

Publications

  • Van Tendeloo VF, Van de Velde A, Van Driessche A, Cools N, Anguille S, Ladell K, Gostick E, Vermeulen K, Pieters K, Nijs G, Stein B, Smits EL, Schroyens WA, Gadisseur AP, Vrelust I, Jorens PG, Goossens H, de Vries IJ, Price DA, Oji Y, Oka Y, Sugiyama H, Berneman ZN. Induction of complete and molecular remissions in acute myeloid leukemia by Wilms' tumor 1 antigen-targeted dendritic cell vaccination. Proc Natl Acad Sci U S A. 2010 Aug 3;107(31):13824-9. doi: 10.1073/pnas.1008051107. Epub 2010 Jul 14.

    PubMed 20631300
  • Van Driessche A, Van de Velde AL, Nijs G, Braeckman T, Stein B, De Vries JM, Berneman ZN, Van Tendeloo VF. Clinical-grade manufacturing of autologous mature mRNA-electroporated dendritic cells and safety testing in acute myeloid leukemia patients in a phase I dose-escalation clinical trial. Cytotherapy. 2009;11(5):653-68. doi: 10.1080/14653240902960411.

    PubMed 19530029
  • Van Driessche A, Berneman ZN, Van Tendeloo VF. Active specific immunotherapy targeting the Wilms' tumor protein 1 (WT1) for patients with hematological malignancies and solid tumors: lessons from early clinical trials. Oncologist. 2012;17(2):250-9. doi: 10.1634/theoncologist.2011-0240. Epub 2012 Jan 30.

    PubMed 22291091
  • Smits EL, Anguille S, Cools N, Berneman ZN, Van Tendeloo VF. Dendritic cell-based cancer gene therapy. Hum Gene Ther. 2009 Oct;20(10):1106-18. doi: 10.1089/hum.2009.145.

    PubMed 19656053
  • Anguille S, Smits EL, Lion E, van Tendeloo VF, Berneman ZN. Clinical use of dendritic cells for cancer therapy. Lancet Oncol. 2014 Jun;15(7):e257-67. doi: 10.1016/S1470-2045(13)70585-0.

    PubMed 24872109
  • Anguille S, Smits EL, Bryant C, Van Acker HH, Goossens H, Lion E, Fromm PD, Hart DN, Van Tendeloo VF, Berneman ZN. Dendritic Cells as Pharmacological Tools for Cancer Immunotherapy. Pharmacol Rev. 2015 Oct;67(4):731-53. doi: 10.1124/pr.114.009456.

    PubMed 26240218
  • Willemen Y, Huizing MT, Smits E, Anguille S, Nijs G, Stein B, Van Tendeloo V, Peeters M, Berneman Z. J Clin Oncol 30(suppl): abstr e13051, 2012.

  • Anguille S, Van de Velde AL, Smits EL, Van Tendeloo VF, Juliusson G, Cools N, Nijs G, Stein B, Lion E, Van Driessche A, Vandenbosch I, Verlinden A, Gadisseur AP, Schroyens WA, Muylle L, Vermeulen K, Maes MB, Deiteren K, Malfait R, Gostick E, Lammens M, Couttenye MM, Jorens P, Goossens H, Price DA, Ladell K, Oka Y, Fujiki F, Oji Y, Sugiyama H, Berneman ZN. Dendritic cell vaccination as postremission treatment to prevent or delay relapse in acute myeloid leukemia. Blood. 2017 Oct 12;130(15):1713-1721. doi: 10.1182/blood-2017-04-780155. Epub 2017 Aug 22.

    PubMed 28830889
  • Z. Berneman, A. Van de Velde, S. Anguille, Y. Willemen, M. Huizing, P. Germonpré, K. Saevels, G. Nijs, N. Cools, A. Van Driessche, B. Stein, H. De Reu, W. Schroyens, A. Gadisseur, A. Verlinden, K. Vermeulen, M. Maes, M. Lammens, H. Goossens, M. Peeters, V. Van Tendeloo, E. Smits. Vaccination with Wilms' Tumor Antigen (WT1) mRNA-Electroporated Dendritic Cells as an Adjuvant Treatment in 60 Cancer Patients: Report of Clinical Effects and Increased Survival in Acute Myeloid Leukemia, Metastatic Breast Cancer, Glioblastoma and Mesothelioma. Cytotherapy 2016, 18(6), p. S13-14

  • Z. Berneman, S. Anguille, Y. Willemen, A. Van de Velde, P. Germonpré, M. Huizing, V. Van Tendeloo, K. Saevels, L. Rutsaert, K. Vermeulen, A. Snoeckx, B. Op de Beeck, N. Cools, G. Nijs, B. Stein, E. Lion, A. van Driessche, M. Peeters, E. Smits. Vaccination of cancer patients with dendritic cells electroporated with mRNA encoding the Wilms' Tumor protein (WT1): correlation of clinical effect and overall survival with T-cell response. Cytotherapy 2019, 21(5), p. S10.

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Dendritic cell vaccine plus temozolomide chemotherapy in people with Glioblastoma Multiforme of Brain, run by University Hospital, Antwerp at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 4 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall survival (time frame: Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02649582, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Jun 2026.

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