ClinicalTrials.gg
Status unknownNCT03258021TIGERUpdated Jan 28, 2021

TTFields In GErmany in Routine Clinical Care

An observational study in Glioblastoma, sponsored by NovoCure Ltd.. Status unknown at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-01-28.

Sponsored by NovoCure Ltd. · Observational

The sponsor has not verified this record recently (last verified Jan 2021), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
710
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 10 studies in Glioblastoma by NovoCure Ltd. — 1 open to participants now, 2 under way, 1 of them phase 3. Glioblastoma · NovoCure Ltd..

Started
2017
with 1 other
Observational
3 of 10
1 open now
Registered
4th of 10
by date

Among the 10 studies in Glioblastoma by NovoCure Ltd., this one is one of 2 that started in 2017, is one of 3 observational ones, and was the 4th registered.

Glioblastoma

2,134 studies on the registry are indexed under Glioblastoma; 466 are open to participants now.

Browse Glioblastoma studies →

Open to participants now

1 of the 10 studies in Glioblastoma by NovoCure Ltd. is open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

Who these studies take

Of the 339 Glioblastoma studies recruiting now, 234 (69%) set no upper age limit and 65 (19%) stop at 75 or younger; 27 take children under 18; 13 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 10 studies in Glioblastoma by NovoCure Ltd., or all of them as a file.
02

Study summary

The purpose of this post-authorisation medical device study is to obtain real life data on the use of tumor-treating fields (TTFields) in patients with newly diagnosed GBM in routine clinical care in Germany. Patients with newly diagnosed GBM and clinical indication for TTFields treatment will be enrolled in the study after signing Informed consent to use their data and process it centrally for research purposes. The clinical indication for TTFields is one of the inclusion criteria and is defined prior to inclusion by the treating physician. The patient's decision regarding TTFields treatment is part of the observation and will be assessed within the baseline visit.

Read the detailed description

Glioblastoma (GBM) is the most common malignant primary tumor of the brain. The current standard of care for patients with newly diagnosed GBM consists of maximal surgical resection, approx. 60 Gy of radiotherapy together with chemotherapy using temozolomide (TMZ), followed by maintenance TMZ for 6 months. This treatment scheme was shown to extend median survival from 12.1 to 14.6 months compared to surgery and radiotherapy alone. This survival was essentially unchanged since 2005 despite numerous clinical Phase 3 trials conducted.

Although immense efforts were made over the years with different treatment strategies, the survival of patients with newly diagnosed GBM remained very poor until recently. Tumor-treating fields (TTFields) are low-intensity, intermediate frequency, alternating electric fields delivered continuously through adhesive patches, called transducer arrays, to the area of the brain where the GBM tumor is located and help slow down or stop glioblastoma cancer cells from dividing. These transducer arrays are applied to the scalp and are connected to the wearable and portable device.

TTFields are the first treatment since 2005 to demonstrate significantly extended median overall survival and significantly improved long-term survival (one to five year survival rates) compared to the current standard of care. In addition, TTFields significantly extended progression-free survival.

In the Phase 3 trial in newly diagnosed GBM (trial EF-14) the results demonstrated that the addition of TTFields to maintenance TMZ significantly extends both, median and long term survival, as well as progression free survival of patients with newly diagnosed GBM. The magnitude of survival benefit seen is even better to that seen for addition of TMZ to radiation, which established TMZ as the standard of care for 1st line GBM treatment in 2005. Quality of life (QoL) was maintained with the use of TTFields + TMZ in patients for whom 12 months of QoL data were available. The addition of TTFields to TMZ therapy in patients with newly diagnosed glioblastoma was not associated with any significant increase in systemic toxic effects compared with TMZ therapy alone. The most commonly reported side effect from the delivery of TTFields was a mild-to-moderate skin irritation beneath the transducer arrays.

03

Conditions studied

  • Glioblastoma

Browse trials for

Keywords

  • Glioblastoma
  • GBM
  • Tumor-treating fields
  • TTFields
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with newly diagnosed GBM with clinical indication for TTFields treatment, as indicated by the treating physician, will be included in the study, provided all inclusion and no exclusion criteria are met and written consent is given to use and process their routine clinical data according to data privacy standards.

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

  • Newly diagnosed confirmed GBM (WHO-Grade IV)
  • Patient within first 3 cycles of tumor-specific maintenance chemotherapy
  • ≥ 18 years of age
  • Clinical indication for TTFields treatment
  • Given for use and processing of data

Exclusion criteria

Exclusion Criteria:

  • Present or planned pregnancy
  • Significant additional neurological disease (e.g. significantly increased intracerebral pressure (ICP) with a significant midline shift of the brain)
  • Active implanted medical device (e.g. deep brain stimulator)
  • Documented allergy to conductive hydrogel
  • Skull defect (e.g. missing bone with no replacement, bullet fragments in the skull)
Terms in these criteria, in plain language(3)

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.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

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.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
710 participants (actual)
Patient registry
No

Groups and cohorts

  • GBM with indication for TTFields

    newly diagnosed GBM with clinical indication for TTFields

    Device: TTFields

Interventions

  • DeviceTTFields

    Tumor treating fields (TTFields) help slow down or stop glioblastoma cancer cells from dividing by disrupting dividing mechanism of cancer cells leading to apoptosis. TTFields are low-intensity, intermediate frequency, alternating electric fields delivered continuously through adhesive patches, called transducer arrays, to the area of the brain where the GBM tumor is located. These transducer arrays are applied to the scalp and are connected to the wearable and portable device. TTFields are approved for the treatment of newly diagnosed and recurrent GBM.

06

What researchers measure

Primary outcomes

  1. Time to death of any cause (overall survival (OS)) from diagnosis

    Time to death of any cause (overall survival (OS)) from diagnosis is measured using the patient data from date of enrollment until the date of death from any cause

    Time frame: through study completion, an average of 18 months (mean FU time)

  2. Number of TTFields treatment-related serious adverse events (SAEs) standardized to one year of FU time

    Number of TTFields treatment-related SAEs standardized to one year of follow-up (FU) is measured using the collection of SAEs during the follow-up period

    Time frame: through study completion, an average of 18 months (mean follow-up time)

  3. Number of SAEs after start of TTFields treatment

    Number of SAEs after start of TTFields treatment is measured using the collection of SAEs at the follow-up period

    Time frame: through study completion, an average of 18 months (mean follow-up time)

  4. Time of usage (compliance) of TTFields treatment over time

    Time of usage (compliance) of TTFields treatment over time is measured using the treatment compliance report at the Follow-up period

    Time frame: through study completion, an average of 18 months (mean follow-up time)

  5. Time to first progression of GBM (progression-free survival (PFS)), defined within radiological and/or clinical/neurological assessment during routine clinical care in patients who started TTFields treatment at baseline

    Time to first progression of GBM (progression-free survival (PFS)), defined within radiological and/or clinical/neurological assessment during routine clinical care in patients who started TTFields treatment at baseline from date of enrollment until the date of first progression of GBM

    Time frame: through study completion, an average of 18 months (mean follow-up time)

  6. Changes in quality of life at month 2 and month 4 after start of TTFields treatment compared to baseline in patients who started TTFields treatment at baseline

    Changes in quality of life assessed via questionnaires EORTC Quality of life questionnaires (QLQ) QLQ-C30 and BN20 after start of TTFields treatment compared to baseline in patients who started TTFields treatment at baseline is measured using the QoL questionnaires at months two and four after start of TTFields treatment

    Time frame: month 2 and month 4 after start of TTFields treatment compared to baseline in patients who started TTFields treatment at baseline

  7. Patients' reason(s) for refusing TTFields at baseline

    Patients' reason(s) for refusing TTFields is measured using a study specific questionnaire at baseline

    Time frame: baseline

07

Study locations

1 site
  • Clinical center Aschaffenburg-Alzenau
    Aschaffenburg, Bavaria 63739, Germany
08

References and documents

Publications

  • Dolecek TA, Propp JM, Stroup NE, Kruchko C. CBTRUS statistical report: primary brain and central nervous system tumors diagnosed in the United States in 2005-2009. Neuro Oncol. 2012 Nov;14 Suppl 5(Suppl 5):v1-49. doi: 10.1093/neuonc/nos218. No abstract available. Erratum In: Neuro Oncol. 2013 May;15(5):646-7. PubMed 23095881 ↗
  • Stupp R, Mason WP, van den Bent MJ, Weller M, Fisher B, Taphoorn MJ, Belanger K, Brandes AA, Marosi C, Bogdahn U, Curschmann J, Janzer RC, Ludwin SK, Gorlia T, Allgeier A, Lacombe D, Cairncross JG, Eisenhauer E, Mirimanoff RO; European Organisation for Research and Treatment of Cancer Brain Tumor and Radiotherapy Groups; National Cancer Institute of Canada Clinical Trials Group. Radiotherapy plus concomitant and adjuvant temozolomide for glioblastoma. N Engl J Med. 2005 Mar 10;352(10):987-96. doi: 10.1056/NEJMoa043330. PubMed 15758009 ↗
  • Stupp R, Taillibert S, Kanner AA, Kesari S, Steinberg DM, Toms SA, Taylor LP, Lieberman F, Silvani A, Fink KL, Barnett GH, Zhu JJ, Henson JW, Engelhard HH, Chen TC, Tran DD, Sroubek J, Tran ND, Hottinger AF, Landolfi J, Desai R, Caroli M, Kew Y, Honnorat J, Idbaih A, Kirson ED, Weinberg U, Palti Y, Hegi ME, Ram Z. Maintenance Therapy With Tumor-Treating Fields Plus Temozolomide vs Temozolomide Alone for Glioblastoma: A Randomized Clinical Trial. JAMA. 2015 Dec 15;314(23):2535-43. doi: 10.1001/jama.2015.16669. PubMed 26670971 ↗
  • Kesari S, Ram Z; EF-14 Trial Investigators. Tumor-treating fields plus chemotherapy versus chemotherapy alone for glioblastoma at first recurrence: a post hoc analysis of the EF-14 trial. CNS Oncol. 2017 Jul;6(3):185-193. doi: 10.2217/cns-2016-0049. Epub 2017 Apr 12. PubMed 28399638 ↗
  • Stupp R, Wong ET, Kanner AA, Steinberg D, Engelhard H, Heidecke V, Kirson ED, Taillibert S, Liebermann F, Dbaly V, Ram Z, Villano JL, Rainov N, Weinberg U, Schiff D, Kunschner L, Raizer J, Honnorat J, Sloan A, Malkin M, Landolfi JC, Payer F, Mehdorn M, Weil RJ, Pannullo SC, Westphal M, Smrcka M, Chin L, Kostron H, Hofer S, Bruce J, Cosgrove R, Paleologous N, Palti Y, Gutin PH. NovoTTF-100A versus physician's choice chemotherapy in recurrent glioblastoma: a randomised phase III trial of a novel treatment modality. Eur J Cancer. 2012 Sep;48(14):2192-202. doi: 10.1016/j.ejca.2012.04.011. Epub 2012 May 18. PubMed 22608262 ↗
  • Mrugala MM, Engelhard HH, Dinh Tran D, Kew Y, Cavaliere R, Villano JL, Annenelie Bota D, Rudnick J, Love Sumrall A, Zhu JJ, Butowski N. Clinical practice experience with NovoTTF-100A system for glioblastoma: The Patient Registry Dataset (PRiDe). Semin Oncol. 2014 Oct;41 Suppl 6:S4-S13. doi: 10.1053/j.seminoncol.2014.09.010. Epub 2014 Sep 16. Erratum In: Semin Oncol. 2015 Jun;42(3):e33-43. PubMed 25213869 ↗
  • Kirson ED, Dbaly V, Tovarys F, Vymazal J, Soustiel JF, Itzhaki A, Mordechovich D, Steinberg-Shapira S, Gurvich Z, Schneiderman R, Wasserman Y, Salzberg M, Ryffel B, Goldsher D, Dekel E, Palti Y. Alternating electric fields arrest cell proliferation in animal tumor models and human brain tumors. Proc Natl Acad Sci U S A. 2007 Jun 12;104(24):10152-7. doi: 10.1073/pnas.0702916104. Epub 2007 Jun 5. PubMed 17551011 ↗
  • Kirson ED, Gurvich Z, Schneiderman R, Dekel E, Itzhaki A, Wasserman Y, Schatzberger R, Palti Y. Disruption of cancer cell replication by alternating electric fields. Cancer Res. 2004 May 1;64(9):3288-95. doi: 10.1158/0008-5472.can-04-0083. PubMed 15126372 ↗
  • Giladi M, Schneiderman RS, Voloshin T, Porat Y, Munster M, Blat R, Sherbo S, Bomzon Z, Urman N, Itzhaki A, Cahal S, Shteingauz A, Chaudhry A, Kirson ED, Weinberg U, Palti Y. Mitotic Spindle Disruption by Alternating Electric Fields Leads to Improper Chromosome Segregation and Mitotic Catastrophe in Cancer Cells. Sci Rep. 2015 Dec 11;5:18046. doi: 10.1038/srep18046. PubMed 26658786 ↗
  • Gera N, Yang A, Holtzman TS, Lee SX, Wong ET, Swanson KD. Tumor treating fields perturb the localization of septins and cause aberrant mitotic exit. PLoS One. 2015 May 26;10(5):e0125269. doi: 10.1371/journal.pone.0125269. eCollection 2015. PubMed 26010837 ↗
  • Kanner AA, Wong ET, Villano JL, Ram Z; EF-11 Investigators. Post Hoc analyses of intention-to-treat population in phase III comparison of NovoTTF-100A system versus best physician's choice chemotherapy. Semin Oncol. 2014 Oct;41 Suppl 6:S25-34. doi: 10.1053/j.seminoncol.2014.09.008. Epub 2014 Sep 16. Erratum In: Semin Oncol. 2015 Jun;42(3):e56-66. PubMed 25213871 ↗
  • Stupp R, Taillibert S, Kanner A, Read W, Steinberg D, Lhermitte B, Toms S, Idbaih A, Ahluwalia MS, Fink K, Di Meco F, Lieberman F, Zhu JJ, Stragliotto G, Tran D, Brem S, Hottinger A, Kirson ED, Lavy-Shahaf G, Weinberg U, Kim CY, Paek SH, Nicholas G, Bruna J, Hirte H, Weller M, Palti Y, Hegi ME, Ram Z. Effect of Tumor-Treating Fields Plus Maintenance Temozolomide vs Maintenance Temozolomide Alone on Survival in Patients With Glioblastoma: A Randomized Clinical Trial. JAMA. 2017 Dec 19;318(23):2306-2316. doi: 10.1001/jama.2017.18718. Erratum In: JAMA. 2018 May 1;319(17):1824. doi: 10.1001/jama.2018.3431. PubMed 29260225 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2017 (actual). Primary completion is estimated for Jun 2021, 46 months after the start.

Of 99 observational studies under Glioblastoma, half reached primary completion within 52 months of starting (the median), counting those still running; a quarter within 33 and three quarters within 96. This study's planned 46 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 2, 2017
First posted
Aug 22, 2017
StartActual
Aug 31, 2017
Primary completionEst.
Jun 2021
CompletionEst.
Jul 2021
Last update
Jan 28, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 28, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03258021
Lead sponsor
NovoCure Ltd.
Responsible party
Sponsor
First posted
Aug 22, 2017
Start date
Aug 31, 2017
Primary completion
Jun 2021 (estimated)
Completion
Jul 2021 (estimated)
Last update
Jan 28, 2021

Study contacts

Oliver Bähr, Prof.
principal investigator · Clinical center Aschaffenburg-Alzenau, Aschaffenburg, Germany

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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