Adjuvant Dendritic Cell-immunotherapy Plus Temozolomide in Glioblastoma Patients (ADDIT-GLIO)

March 4, 2024 updated by: Zwi Berneman, University Hospital, Antwerp

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.

Study Overview

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.

Study Type

Interventional

Enrollment (Estimated)

20

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Antwerp
      • Edegem, Antwerp, Belgium, 2650

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 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
  • 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

Exclusion Criteria:

  • 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Single Arm
Dendritic cell vaccine plus temozolomide chemotherapy

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
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
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.
Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of glioblastoma patients post surgical resection with feasible and safe DC vaccine production
Time Frame: Vaccine production and quality testing (i.e. 4 weeks after leukapheresis)

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.
Vaccine production and quality testing (i.e. 4 weeks after leukapheresis)
Feasibility of DC vaccine administration to glioblastoma patients combined with chemotherapy
Time Frame: Upon maintenance chemotherapy treatment (i.e. +/- 12 weeks post leukapheresis)
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.
Upon maintenance chemotherapy treatment (i.e. +/- 12 weeks post leukapheresis)
Number of participants with adverse events as a measure of safety and tolerability
Time Frame: Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later
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).
Through study completion with follow-up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later
Immunological responses to the DC vaccine
Time Frame: At first DC vaccination + day 1 of first and fourth temozolomide treatment cycles
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.
At first DC vaccination + day 1 of first and fourth temozolomide treatment cycles
Objective clinical responses by tumor evaluation (clinical efficacy)
Time Frame: Through study completion with follow up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

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.

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

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
General and disease-specific quality of life
Time Frame: Through study completion with follow up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later
Patients will be asked to fill out general and disease-specific quality of life questionnaires to assess changes in general and disease-specific quality of life during the study at regular time points.
Through study completion with follow up until 90 days after final DC vaccine administration or 24 months after apheresis, whichever occurs later

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Zwi N Berneman, MD, PhD, Antwerp University Hospital, Division of Hematology and Center for Cell Therapy and Regenerative Medicine
  • Principal Investigator: Marika Rasschaert, MD, PhD, Antwerp University Hospital (UZA), Division of Oncology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 1, 2015

Primary Completion (Estimated)

December 1, 2024

Study Completion (Estimated)

December 1, 2025

Study Registration Dates

First Submitted

January 23, 2015

First Submitted That Met QC Criteria

January 5, 2016

First Posted (Estimated)

January 7, 2016

Study Record Updates

Last Update Posted (Estimated)

March 6, 2024

Last Update Submitted That Met QC Criteria

March 4, 2024

Last Verified

March 1, 2024

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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