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WithdrawnNCT04218019GERASUpdated Jan 5, 2024

Effect of Timing of Tumor-Treating Fields Plus Short-Course Radiation

An interventional study of TTFields in Newly Diagnosed Glioblastoma in Patients ≥70 Years, sponsored by Juergen Debus. Withdrawn at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-01-05.

Sponsored by Juergen Debus · Not applicable, Interventional, and Treatment

Why this study was withdrawn
Organizational reasons
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of the study is to assess timing of TTFields use as well as safety, feasibility and preliminary efficacy of treatment with TTFields in elderly patients with newly diagnosed GBM simultaneous to RT/ CRT.

The primary aim of the trial is to establish a safely conducted therapy rate higher than 0.8 in the treatment arm.

Read the detailed description

Despite the immense effort made over the years with different treatment modalities, the survival of patients with newly diagnosed GBM is still very poor; no treatment is curative; and the quality of life of patients with this tumor is compromised significantly, not only by their disease but also by side effects of these rigorous treatment plans. Especially in elderly patients, a treatment modality is needed that will improve the results of current standard treatments without further impairing the quality of life of these patients for their limited life span.

The objective is to test the feasibility and timing of treatment with the TTFields device in elderly patients with newly diagnosed GBM simultaneous or subsequent to RT/ CRT.

The primary rationale to conduct this study is to improve treatment in the segment of high-grade brain tumors with the highest medical need.

All procedures regarding TTFields are representing routine clinical care within the approved use of the medical product in Germany; the present trial aims to investigate the optimal timing of TTFields use in elderly GBM patients.

02

Conditions studied

  • Newly Diagnosed Glioblastoma in Patients ≥70 Years

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03

In context

Glioblastoma

2,132 studies on the registry are indexed under Glioblastoma; 464 are open to participants now.

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Lead sponsor

Juergen Debus is the lead sponsor of 7 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • confirmed, newly diagnosed glioblastoma (astrocytoma WHO grade IV)
  • Indication for hypofractionated radiotherapy or hypofractionated chemo-radiotherapy with temozolomide
  • Open or resection
  • Craniotomy or intracranial biopsy site must be adequately healed
  • Age: >65 years
  • ≥50%
  • Ability of subject to understand character and individual consequences of the clinical trial
  • Written informed consent of participation

Exclusion criteria

Exclusion Criteria:

  • Concurrent participation in another competing interventional clinical trial studying a drug or treatment regimen.
  • Any psychological, familial, sociological, or geographical condition potentially hampering compliance with the study protocol requirements and/or follow-up procedures; those conditions should be discussed with the patient before trial entry
  • Prior RT of the brain
  • Patients who have not yet recovered from acute high-grade toxicities of prior therapies
  • MRI or TTFields (e.g. cardiac pacemaker, implanted defibrillator, certain cardiac valve replacements, certain metal implants, patients with severe skull defects such as a missing bone flap, programmable shunts)
  • Known to conductive hydrogels
  • Pregnant and lactating women
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Early Tumor Treating Fields (TTFields, Optune®) treatment

    TTF will be started together with hypofractionated radiotherapy (+/- 5 days) with or without Temozolomide (according to the standard and local physician's decision). Chemoradiotherapy with temozolomide and hypofractionated radiotherapy is regarded as standard therapy and not part of the intervention. In case of chemoradiotherapy temozolomide will be applied according to the standard of the participating trial center. Use of antiemetic and infection prophylaxis will be at the discretion of the investigator.

    Device: TTFields

  • Active comparator
    Late TTF treatment

    Patients will be treated with hypofractionated radiotherapy with or without temozolomide (according to the local standard and physician's decision). Radiotherapy and treatment with temozolomide is regarded as standard therapy and not part of the intervention. In case of chemoradiotherapy temozolomide will be applied according to the standard of the participating trial center. Use of antiemetic and infection prophylaxis will be at the discretion of the investigator. Late TTFields treatment will start 4 weeks after the end of radiotherapy.

    Device: TTFields

Interventions

  • DeviceTTFields

    The NovoTTF-200 A device used in this trial delivers very low intensity, alternating electric fields to the tumor site through the scalp. These fields are known as Tumor Treating Fields or TTFields.

06

What researchers measure

Primary outcomes

  1. Safely conducted therapy rate (SCTR)

    The proportion of patients fulfilling the inclusion/exclusion criteria who were treated for at least one week according to protocol and neither experienced neither NCI-CTC-AEs of Grade 3 nor 4

    Time frame: at least one week of treatment

  2. Number of participants with treatment related adverse events as assessed by CTCAE V 5.0.

    Safety and tolerability of TTFields Treatment combined with radiotherapy/chemo-radiotherapy

    Time frame: within 31 weeks after treatment

Secondary outcomes

  1. Progression-free survival

    according to RANO criteria

    Time frame: within 6 month after treatment

  2. The correlation between the Optune device usage and the health-related quality of life of elderly patients and families undergoing this therapy in combination with radiotherapy/chemo-radiotherapy.

    Score on the EORTC QoL C15-Pal

    Time frame: within 31 weeks after treatment

  3. The correlation between the Optune device usage and the health-related quality of life of elderly patients and families undergoing this therapy in combination with radiotherapy/chemo-radiotherapy.

    Score on the EORTC QoL BN20

    Time frame: within 31 weeks after treatment

07

Study locations

1 site
  • University Hospital of Heidelberg, Radiation Oncology
    Heidelberg, 69120, Germany
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 5, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04218019
Lead sponsor
Juergen Debus
Responsible party
Juergen Debus (Head of Department, University Hospital Heidelberg) — Sponsor-investigator
First posted
Jan 6, 2020
Start date
Aug 1, 2023
Primary completion
Aug 1, 2023
Completion
Aug 1, 2023
Last update
Jan 5, 2024

Study contacts

Jürgen Debus, Prof.
principal investigator · Head of Department

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

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