Effect of NovoTTF-100A Together With Temozolomide in Newly Diagnosed Glioblastoma Multiforme (GBM)

The study is a prospective, randomly controlled pivotal trial, designed to test the efficacy and safety of a medical device, the NovoTTF-100A, as an adjuvant to the best standard of care in the treatment of newly diagnosed GBM patients. The device is an experimental, portable, battery operated device for chronic administration of alternating electric fields (termed TTFields or TTF) to the region of the malignant tumor, by means of surface, insulated electrode arrays.

Sex

All

Minimum age

18 Years

Inclusion Criteria:

1. Pathological evidence of GBM using WHO classification criteria.
2. \> 18 years of age.
3. Received maximal debulking surgery and radiotherapy concomitant with Temozolomide (45-70Gy):

   1. Patients may enroll in the study if received Gliadel wafers before entering the trial
   2. Any additional treatments received prior to enrollment will be considered an exclusion.
   3. Minimal dose for concomitant radiotherapy is 45 Gy
4. Karnofsky scale ≥ 70
5. Life expectancy at least 3 months
6. Participants of childbearing age must use effective contraception.
7. All patients must sign written informed consent.
8. Treatment start date at least 4 weeks out from surgery.
9. Treatment start date at least 4 weeks out but not more than 7 weeks from the later of last dose of concomitant Temozolomide or radiotherapy.

Exclusion Criteria:

1. Progressive disease (according to MacDonald Criteria). If pseudoprogression is suspected, additional imaging studies must be performed to rule out true progression.
2. Actively participating in another clinical treatment trial
3. Pregnant
4. Significant co-morbidities at baseline which would prevent maintenance Temozolomide treatment:

   1. Thrombocytopenia (platelet count \< 100 x 103/μL)
   2. Neutropenia (absolute neutrophil count \< 1.5 x 103/μL)
   3. CTC grade 4 non-hematological Toxicity (except for alopecia, nausea, vomiting)
   4. Significant liver function impairment - AST or ALT \> 3 times the upper limit of normal
   5. Total bilirubin \> upper limit of normal
   6. Significant renal impairment (serum creatinine \> 1.7 mg/dL)
5. Implanted pacemaker, programmable shunts, defibrillator, deep brain stimulator, other implanted electronic devices in the brain, or documented clinically significant arrhythmias.
6. Infra-tentorial tumor
7. Evidence of increased intracranial pressure (midline shift \> 5mm, clinically significant papilledema, vomiting and nausea or reduced level of consciousness)
8. History of hypersensitivity reaction to Temozolomide or a history of hypersensitivity to DTIC.

• BACKGROUNDKirson 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. PMID 15126372
• BACKGROUNDKirson 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. PMID 17551011
• BACKGROUNDSalzberg M, Kirson E, Palti Y, Rochlitz C. A pilot study with very low-intensity, intermediate-frequency electric fields in patients with locally advanced and/or metastatic solid tumors. Onkologie. 2008 Jul;31(7):362-5. doi: 10.1159/000137713. Epub 2008 Jun 24. PMID 18596382
• BACKGROUNDKirson ED, Giladi M, Gurvich Z, Itzhaki A, Mordechovich D, Schneiderman RS, Wasserman Y, Ryffel B, Goldsher D, Palti Y. Alternating electric fields (TTFields) inhibit metastatic spread of solid tumors to the lungs. Clin Exp Metastasis. 2009;26(7):633-40. doi: 10.1007/s10585-009-9262-y. Epub 2009 Apr 23. PMID 19387848
• BACKGROUNDKirson ED, Schneiderman RS, Dbaly V, Tovarys F, Vymazal J, Itzhaki A, Mordechovich D, Gurvich Z, Shmueli E, Goldsher D, Wasserman Y, Palti Y. Chemotherapeutic treatment efficacy and sensitivity are increased by adjuvant alternating electric fields (TTFields). BMC Med Phys. 2009 Jan 8;9:1. doi: 10.1186/1756-6649-9-1. PMID 19133110
• DERIVEDRam Z, Kim CY, Hottinger AF, Idbaih A, Nicholas G, Zhu JJ. Efficacy and Safety of Tumor Treating Fields (TTFields) in Elderly Patients with Newly Diagnosed Glioblastoma: Subgroup Analysis of the Phase 3 EF-14 Clinical Trial. Front Oncol. 2021 Sep 27;11:671972. doi: 10.3389/fonc.2021.671972. eCollection 2021.