Efficacy of tumor treating fields (TTFields) in elderly patients with newly diagnosed glioblastoma (GBM): Sub-group analysis of the phase III EF-14 trial.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e24019-e24019
Author(s):  
Zvi Ram ◽  
Chae-Yong Kim ◽  
Jay-Jiguang Zhu
Keyword(s):  
Adverse Events ◽  
Elderly Patients ◽  
Electric Fields ◽  
Group Analysis ◽  
Progression Free Survival ◽  
Underlying Disease ◽  
Phase Iii ◽  
Newly Diagnosed ◽  
Serious Adverse Events ◽  
Tumor Treating Fields

e24019 Background: Tumor Treating Fields (TTFields) are an anti-mitotic, regional treatment modality, utilizing low intensity alternating electric fields delivered non-invasively to the tumor using a portable medical device. TTFields are FDA-approved for glioblastoma and malignant pleural mesothelioma. In the EF-14 [NCT00916409] phase 3 GBM study, TTFields significantly extended survival in newly diagnosed GBM when added to maintenance temozolomide (TMZ). Elderly GBM patients usually have worse prognosis and often receive only partial treatment for the disease. The aim of the following post-hoc analysis was to examine the effects of TTFields in the elderly population (≥65 years of age) enrolled in the EF-14 study. Methods: All 134 elderly patients (≥65 years of age) from the EF-14’s intent-to-treat population were included in the analysis, Overall survival (OS) and progression-free survival (PFS), as well as adverse events were compared between the TMZ + TTFields arm and the TMZ alone arm. Results: The median age was 69 (range: 65-83), 69% were male. Median PFS from randomization was 6.5 months versus 3.9 months in the TTFields + TMZ versus TMZ alone arms, respectively (hazard ratio [HR], 0.47 [95%CI 0.30, 0.74] P < 0.0236). Median OS was 17.4 months versus 13.7 months in the TTFields + TMZ versus TMZ alone arm, respectively (HR 0.51 [CI 0.33, 0.77] P < 0.020). Serious adverse events (SAEs) were reported in 39% of patients treated with TTFields + TMZ and in 33% of patients treated with TMZ alone. None of the SAEs were considered related to TTFields. SAEs were considered related to TMZ or to the underlying disease. Grades 1-2 skin AEs were observed in 51% of patients. Conclusions: Consistent with the overall outcome of the EF-14 study, elderly patients treated with TMZ + TTFields showed significantly better OS compared to patients on TMZ alone, and without increase in grade 3-4 toxicity. Clinical trial information: NCT00916409 .

scholarly journals CTNI-68. EFFICACY OF TTFIELDS IN ELDERLY PATIENTS WITH NEWLY DIAGNOSED GLIOBLASTOMA (GBM) – SUB-GROUP ANALYSIS OF THE EF-14 TRIAL

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii58-ii58
Author(s):  
Zvi Ram ◽  
Chae-Yong Kim ◽  
Jay-Jiguang Zhu
Keyword(s):  
Elderly Patients ◽  
Electric Fields ◽  
Group Analysis ◽  
Progression Free Survival ◽  
The Elderly ◽  
Underlying Disease ◽  
Newly Diagnosed ◽  
Serious Adverse Events ◽  
Tumor Treating Fields ◽  
Alternating Electric Fields

Abstract BACKGROUND Tumor Treating Fields (TTFields) are an anti-mitotic, regional treatment that utilizes low intensity alternating electric fields delivered non-invasively to the tumor using a portable medical device. In the EF-14 phase 3 study leading to FDA approval, TTFields significantly extended survival in newly diagnosed GBM when added to maintenance temozolomide (TMZ). Elderly GBM patients usually have worse prognosis and often receive only partial treatment for the disease. This sub-group analysis examined the effects of TTFields in the elderly population (≥65 years of age) enrolled in the EF-14 study. METHODS All 134 elderly patients (≥65 years of age) from the EF-14’s intent-to-treat population were included in the analysis, Overall survival (OS) and progression-free survival (PFS), as well as adverse event frequency and severity were compared between the TMZ/TTFields arm and the TMZ alone arm. RESULTS The median age was 69 (range: 65–83), median KPS was 90%, and 69% were male. Median PFS from randomization was 6.5 months versus 3.9 months in the TMZ/TTFields versus TMZ alone arms, respectively (hazard ratio [HR], 0.47 [95%CI 0.30, 0.74] P&lt; 0.0236). Median OS was 17.4 months versus 13.7 months in the TMZ/TTFields versus TMZ alone arm, respectively (HR 0.51 [CI 0.33, 0.77] P&lt; 0.020). Serious adverse events (SAEs) were reported in 39% of patients treated with TMZ/TTFields and in 33% of patients treated with TMZ alone. None of the SAEs were considered related to TTFields but attributed to TMZ or to the underlying disease. Grades 1–2 skin AEs related to TTFields were observed in 51% of patients. CONCLUSION Consistent with the overall outcome of the EF-14 study, elderly patients treated with TMZ/TTFields showed significantly better OS compared to patients on TMZ alone, and without increase in grade III or IV toxicity.

scholarly journals P14.71 Tumor Treating Fields combined with radiotherapy and temozolomide for newly diagnosed glioblastoma: final safety and efficacy results from a pilot study

2019 ◽  
Vol 21 (Supplement_3) ◽  
pp. iii84-iii84
Author(s):  
R Grossman ◽  
F Bokstein ◽  
D Blumenthal ◽  
C Ben Harush ◽  
D Limon ◽  
...  
Keyword(s):  
Pilot Study ◽  
Electric Fields ◽  
Randomized Study ◽  
Progression Free Survival ◽  
Skin Toxicity ◽  
Phase Iii ◽  
Newly Diagnosed ◽  
Tumor Treating Fields ◽  
Newly Diagnosed Glioblastoma ◽  
Sensitizing Effect

Abstract BACKGROUND Tumor Treating Fields (TTFields) are a non-invasive, loco-regional, anti-mitotic treatment consisting of low intensity alternating electric fields. The combination of TTFields with maintenance temozolomide significantly improved survival versus temozolomide alone in the phase 3 EF-14 study in newly diagnosed glioblastoma (ndGBM). In preclinical studies, TTFields increased the number of glioma cells undergoing cellular death following radiotherapy (RT) by inhibiting DNA damage repair, suggesting a radio-sensitizing effect of TTFields. This pilot study is the first to evaluate the safety and feasibility of administering TTFields concomitant to RT and TMZ in ndGBM patients. MATERIAL AND METHODS Patients diagnosed with ndGBM were treated with TTFields/RT/TMZ followed by maintenance TMZ and TTFields for up to 24 months. TTFields (200kHz) were delivered for >18 hours/day while the transducer arrays were removed during delivery of RT. TMZ was administered at a dose of 75 mg/m2/daily for 6 weeks and RT at a total dose of 60 Gy. The primary endpoint was safety of the combined TTFields/RT/TMZ; secondary endpoints included progression-free survival (PFS), overall survival (OS) and toxicity. Adverse events (AEs) were graded according to CTCAE V4.0. RESULTS 10 ndGBM patients that recovered from maximal debulking surgery or biopsy were enrolled at a single center in Israel between April and December 2017. Five patients (50%) had undergone gross total resection while the rest had biopsy only. Eight of the patients were male, median age was 59, median KPS was 80 and median dose of RT was 60 Gy. Six patients (60%) reported at least one AE. The most common AE was TTFields-related skin toxicity, reported in four patients (40%), all of which were grade 1–2 in severity. Two patients reported serious AEs (seizures and general deterioration) that were considered unrelated to TTFields. Median PFS with RT/TMZ/TTFields was 10.5 months. Median OS has not yet been reached. CONCLUSION The proportion of patients with TTFields-related skin toxicity was similar to that reported in ndGBM patients in the randomized Phase III study (52%), where patients started TTFields at least 4 weeks after RT. No other TTFields-related toxicities were reported and there were no increase in RT- or TMZ-related toxicities as a result of combining TTFields with RT in addition to TMZ. Based on the safety and preliminary efficacy results of this pilot study, a phase II randomized study has been initiated to investigate the efficacy of concomitant RT/TMZ/TTFields in 60 ndGBM patients.

Efficacy of Melphalan and Prednisone Plus Thalidomide in Patients Older Than 75 Years With Newly Diagnosed Multiple Myeloma: IFM 01/01 Trial

2009 ◽  
Vol 27 (22) ◽  
pp. 3664-3670 ◽  
Author(s):  
Cyrille Hulin ◽  
Thierry Facon ◽  
Philippe Rodon ◽  
Brigitte Pegourie ◽  
Lotfi Benboubker ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Overall Survival ◽  
Elderly Patients ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Standards Of Care ◽  
Newly Diagnosed ◽  
Grade 3 ◽  
To Receive

Purpose Until recently, melphalan and prednisone were the standards of care in elderly patients with multiple myeloma. The addition of thalidomide to this combination demonstrated a survival benefit for patients age 65 to 75 years. This randomized, placebo-controlled, phase III trial investigated the efficacy of melphalan and prednisone plus thalidomide in patients older than 75 years with newly diagnosed myeloma. Patients and Methods Between April 2002 and December 2006, 232 previously untreated patients with myeloma, age 75 years or older, were enrolled and 229 were randomly assigned to treatment. All patients received melphalan (0.2 mg/kg/d) plus prednisone (2 mg/kg/d) for 12 courses (day 1 to 4) every 6 weeks. Patients were randomly assigned to receive 100 mg/d of oral thalidomide (n = 113) or placebo (n = 116), continuously for 72 weeks. The primary end point was overall survival. Results After a median follow-up of 47.5 months, overall survival was significantly longer in patients who received melphalan and prednisone plus thalidomide compared with those who received melphalan and prednisone plus placebo (median, 44.0 v 29.1 months; P = .028). Progression-free survival was significantly prolonged in the melphalan and prednisone plus thalidomide group (median, 24.1 v 18.5 months; P = .001). Two adverse events were significantly increased in the melphalan and prednisone plus thalidomide group: grade 2 to 4 peripheral neuropathy (20% v 5% in the melphalan and prednisone plus placebo group; P < .001) and grade 3 to 4 neutropenia (23% v 9%; P = .003). Conclusion This trial confirms the superiority of the combination melphalan and prednisone plus thalidomide over melphalan and prednisone alone for prolonging survival in very elderly patients with newly diagnosed myeloma. Toxicity was acceptable.

Updated safety/feasibility study of concurrent tumor treating fields (TTFields) and radiation therapy for newly diagnosed glioblastoma.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e14535-e14535
Author(s):  
Rachel Grossman ◽  
Felix Bokstein ◽  
Deborah T. Blumenthal ◽  
Dror Limon ◽  
Carmit Ben Harush ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Pilot Study ◽  
Electric Fields ◽  
Tumor Resection ◽  
Skin Toxicity ◽  
Phase Iii ◽  
Karnofsky Performance Score ◽  
Newly Diagnosed ◽  
Tumor Treating Fields ◽  
Newly Diagnosed Glioblastoma

e14535 Background: Tumor Treating Fields (TTFields), a non-invasive, loco-regional, anti-mitotic treatment comprises low-intensity alternating electric fields. In the phase III EF-14 study in newly diagnosed glioblastoma (ndGBM), TTFields in combination with temozolomide (TMZ) significantly improved survival compared to TMZ alone. In preclinical studies TTFields had a radiosensitizing effect and increased the efficacy of radiation therapy (RT). This pilot study [NCT03780569] evaluated the feasibility and safety of TTFields administered concurrently with RT and TMZ in ndGBM patients. Methods: Patients with histologically confirmed ndGBM were treated with TTFields/RT/TMZ followed by adjuvant TMZ/TTFields. TTFields (200 kHz) were delivered for ≥18 hours/day with transducer arrays removed during RT delivery. RT was administered to the tumor bed in 30 fractions (total dose 60 Gy) in combination with daily TMZ (75 mg/m2). In the adjuvant phase, patients received monthly TMZ (150–200 mg/m2 for 5 days) plus TTFields. The primary outcome was safety of the combined therapies; secondary outcomes included progression-free survival (PFS) and overall survival (OS). Adverse events (AEs) were graded per CTCAE v4.0. Results: Ten patients were enrolled at a single center between April and December 2017. Median age was 60.2 years, median Karnofsky Performance Score was 90.0, and eight (80%) patients were male. Five (50%) patients had undergone tumor resection while the remainder had biopsy only. Eight patients experienced ≥1 RT treatment delay; delays were unrelated to TTFields treatment. All patients experienced ≥1 AE. Three patients suffered from serious AEs (urinary tract infection, confusional state, and decubitus ulcer) that were considered unrelated to TTFields. The most common AE was skin toxicity, reported in eight (80%) patients; all were of low severity (CTCAE grade 1–2) and were reported as related to TTFields treatment. Median PFS from enrollment was 8.9 months; median OS was not reached at the time of study closure. Conclusions: Eighty percent of patients experienced grade 1–2 TTFields-related skin toxicity. No other TTFields-related toxicities were observed and there was no increase in RT- or TMZ-related toxicities as a result of combining TTFields with these therapies. Based on the safety and preliminary efficacy results of this pilot study, a phase 2 randomized trial (N = 60; NCT03869242) and the Phase 3 TRIDENT trial have been initiated to further investigate the efficacy of concomitant RT/TMZ/TTFields in ndGBM. Clinical trial information: NCT03780569.

scholarly journals CTNI-38. PriCoTTF TRIAL: A PHASE I/II TRIAL OF TTFIELDS PRIOR AND CONCOMITANT TO RADIOTHERAPY IN NEWLY DIAGNOSED GLIOBLASTOMA

2021 ◽  
Vol 23 (Supplement_6) ◽  
pp. vi68-vi68
Author(s):  
Sied Kebir ◽  
Daniela Pierscianek ◽  
Martin Proescholdt ◽  
Peter Hau ◽  
Anca-Ligia Grosu ◽  
...  
Keyword(s):  
Phase I ◽  
Survival Rates ◽  
Progression Free Survival ◽  
The Elderly ◽  
Phase Iii ◽  
Newly Diagnosed ◽  
Safety And Efficacy ◽  
Fractionated Radiotherapy ◽  
Tumor Treating Fields ◽  
Newly Diagnosed Glioblastoma

Abstract TTFields therapy is applied at 200 kHz by arrays that are placed at the patients’ scalp. In the phase 3 EF-14 trial, survival rates were significantly improved when adding tumor-treating fields (TTFields) to adjuvant temozolomide-based chemotherapy in patients with newly diagnosed glioblastoma (nGBM). Preclinical studies showed that combination of TTFields and radiotherapy synergistically impaired glioblastoma cell growth. Here, we present the PriCoTTF trial, which is enrolling nGBM patients and will assess the safety and efficacy of TTFields initiated prior and concomitant to radiochemotherapy. Following surgery and wound-healing, TTFields therapy is initiated in adult nGBM patients. TTFields therapy continues throughout radiochemotherapy and adjuvant chemotherapy for a total of approximately 9 months. During radiotherapy, the arrays - through which TTFields is delivered - remain on the patients’ scalp. Totally, thirty-three patients are planned to be enrolled in two treatment arms. In arm A, 20 patients receive normo-fractionated radiotherapy, whereas in the elderly arm, arm B, 13 patients receive hypo-fractionated radiotherapy. The primary endpoint of this trial is safety and tolerance that will be gauged by a set of pre-specified treatment-limiting toxicities. Secondary endpoints include the frequency of adverse events, progression-free survival (PFS), and overall survival (OS). The trial is currently enrolling patients at four sites in Germany. At the time of abstract submission, 9 patients enrolled in Arm B. Patient recruitment for arm A has been completed with. We will present initial practical experiences as well as preliminary safety and tolerance data. There is a biological rationale for combining TTFields and radiotherapy to further improve survival of GBM patients. In the presented phase I/II trial, the safety and efficacy of TTFields initiated prior and concomitant to RT in nGBM will be assessed. In addition, initial efficacy data (phase II) may serve as a rationale for a putative randomized phase III trial.

scholarly journals Tumor Treating Fields for Glioblastoma Treatment: Patient Satisfaction and Compliance With the Second-Generation Optune® System

2019 ◽  
Vol 13 ◽  
pp. 117955491882544 ◽  
Author(s):  
Adrian Kinzel ◽  
Michael Ambrogi ◽  
Michael Varshaver ◽  
Eilon D Kirson
Keyword(s):  
Patient Satisfaction ◽  
Electric Fields ◽  
First Generation ◽  
Second Generation ◽  
Treatment Compliance ◽  
Phase Iii ◽  
Newly Diagnosed ◽  
Generation System ◽  
Term Survival ◽  
Tumor Treating Fields

Background: Tumor treating fields (TTFields) are a non-invasive antimitotic therapy that delivers alternating electric fields via the Optune® system. The Phase III EF-14 trial in newly diagnosed glioblastoma multiforme (GBM) showed significantly improved progression-free, overall and long-term survival when Optune was used together with maintenance temozolomide (TMZ) compared with TMZ alone. Compliance (average monthly use) was associated with better clinical outcome. The first-generation Optune system weighed approximately 6 pounds (~2.7 kg). The second-generation redesigned Optune system weighs 2.7 pounds (~1.2 kg). We tested and compared GBM patient experience with the second-generation system versus the first-generation system. Methods: Ten newly diagnosed and recurrent GBM patients in Germany (median age: 52.9 years [31-79]) were prospectively monitored over the first month of transitioning from the first-generation to the second-generation Optune system. Questionnaires using a numerical analog scale assessed feedback at baseline (first generation) and after 1 month of second-generation use. Results: After transitioning to the second-generation system, compliance improved by more than 10% in four patients, was maintained in five patients and decreased by more than 10% in one patient. Following transition, eight out of nine patients reported a reduction in the triggering of malfunction alarms. Self-reported patient feedback showed improved handling and portability (weight, mobility) of the second- versus the first-generation Optune system. Conclusions: This patient user survey suggests that patient satisfaction with the second-generation Optune system is improved versus the first-generation system. Improved features of the new system help patients achieve and maintain a higher rate of treatment compliance.

Phase III TRIDENT trial: Radiation and temozolomide +/- tumor treating fields in newly diagnosed glioblastoma.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. TPS2580-TPS2580
Author(s):  
Wenyin Shi ◽  
Lawrence Kleinberg ◽  
Suriya A. Jeyapalan ◽  
Samuel Aaron Goldlust ◽  
Seema Nagpal ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Therapeutic Effects ◽  
Type I ◽  
Newly Diagnosed ◽  
Free Survival ◽  
Tumor Treating Fields ◽  
Post Surgery

TPS2580 Background: Tumor treating fields (TTFields) is a non-invasive, regional antimitotic treatment approved as a standard of care for glioblastoma (GBM). In the EF-14 phase III trial, TTFields (200 kHz) plus temozolomide (TMZ) significantly increased the survival of patients with newly diagnosed GBM (ndGBM) without increase in systemic toxicity. TTFields-related AEs were mainly skin AEs. In preclinical models, TTFields increase the therapeutic effects of radiation therapy (RT). A pilot study showed that TTFields concomitant with RT and TMZ is well tolerated. The benefit of concomitant TTFields with RT and TMZ will be tested in this phase III TRIDENT randomized trial. Methods: TRIDENT is an international phase III randomized trial comparing standard RT with TMZ vs the triple combination of RT plus TMZ with concomitant TTFields. RT is delivered through the TTFields arrays. Patients in both arms will receive maintenance TTFields with TMZ. TTFields (200 KHz) will be delivered >18 hours/day using Optune. Patients will continue TTFields treatment until second recurrence. Patients with pathologically confirmed newly ndGBM, ≥ 18 years, KPS ≥ 70, either sex, post-surgery or biopsy, who are amenable for RT/TMZ therapy will be enrolled. Patients will be stratified by extent of resection and MGMT promoter methylation status. The primary endpoint is overall survival (OS). Secondary end points include: progression free survival (PFS; RANO), 1- and 2-year survival rates, overall radiological response (ORR; RANO), progression-free survival (PFS2, PFS6, PFS12); severity and frequency of AEs (CTCAE V5.0); pathological changes in resected GBM tumors post treatment; quality of life (EORTC QLQ-C30); and correlation of OS to TTFields compliance. The hypothesis is that concomitant TTFields with radiation and TMZ will significantly improve OS as compared to radiation and TMZ alone. The sample size is 950, with 475 in each arm to detect a HR <0.8 with a 5% type I error. Survival will be measured from the time of randomization until date of death. At the time of analysis, patients who are lost to follow-up or still on protocol follow-up will be censored at the last date known to be alive.

scholarly journals ES-2 Phase 3 TRIDENT Trial: Radiation and Temozolomide with or without Tumor Treating Fields in newly diagnosed glioblastoma

2020 ◽  
Vol 2 (Supplement_3) ◽  
pp. ii3-ii3
Author(s):  
Mitsutoshi Nakada
Keyword(s):  
Progression Free Survival ◽  
Phase Iii ◽  
Therapeutic Effects ◽  
Type I ◽  
Newly Diagnosed ◽  
Phase 3 ◽  
Free Survival ◽  
Tumor Treating Fields ◽  
Post Surgery

Abstract Background: Tumor treating fields (TTFields) is a non-invasive, regional antimitotic treatment approved as a standard-of-care for glioblastoma. In the EF-14 Phase 3 trial, TTFields (200 kHz) plus temozolomide (TMZ) significantly increased survival of patients with newly diagnosed GBM(ndGBM) without increasing systemic toxicity. TTFields-related AEs were mainly skin AEs. In preclinical models, TTFields increase the therapeutic effects of radiation therapy (RT). A pilot study showed that TTFields concomitant with RT and TMZ is well tolerated. The benefit of concomitant TTFields with RT and TMZ will be tested in the TRIDENT trial. Methods: TRIDENT is an international phase III randomized trial comparing standard RT/TMZ vs the triple combination of RT/TMZ with concomitant TTFields. RT is delivered through the TTFields arrays. Patients in both arms will receive maintenance TTFields/TMZ. TTFields (200 kHz) will be delivered over18 hours/day using Optune. Patients will continue TTFields treatment until second recurrence. Patients with pathologically confirmed ndGBM, over 18 years old, KPS over 70, either sex, post-surgery or biopsy, and amenable for RT/TMZ therapy will be stratified by extent of resection and MGMT promoter methylation status. The primary endpoint is overall survival (OS). Secondary end points: progression free survival (PFS; RANO), 1- and 2-year survival rates, overall radiological response (ORR; RANO), progression-free survival (PFS2, PFS6, PFS12); severity and frequency of AEs (CTCAE V5.0); pathological changes in resected GBM tumors post treatment; quality of life (EORTC QLQ-C30); and correlation of OS to TTFields compliance. The hypothesis is that concomitant TTFields/RT/TMZ will significantly improve OS versus RT/TMZ. Sample size (N=950; 475/arm) will detect a HR lower than 0.8 with 5% type I error. Survival will be measured from the time of randomization until date of death. At the time of analysis, patients lost to follow-up or still on protocol follow-up will be censored at the last date known to be alive.

scholarly journals A randomized phase II trial of efficacy and safety of the immunotherapy ALECSAT as an adjunct to radiotherapy and temozolomide for newly diagnosed glioblastoma

2021 ◽  
Author(s):  
Katja Werlenius ◽  
Giuseppe Stragliotto ◽  
Michael Strandeus ◽  
Malin Blomstrand ◽  
Helena Carén ◽  
...  
Keyword(s):  
Adverse Events ◽  
Phase Ii ◽  
Phase Ii Trial ◽  
Performance Status ◽  
Progression Free Survival ◽  
Newly Diagnosed ◽  
Efficacy And Safety ◽  
Open Label ◽  
Serious Adverse Events ◽  
Significant Difference

Abstract Background There is an urgent need for effective treatments against glioblastoma (GBM). In this trial we investigated the efficacy and safety of an adoptive cell-based immunotherapy. Methods Patients with newly diagnosed GBM were recruited at four study sites in Sweden. The patients were randomized 1:2 to receive either radiotherapy (RT), 60 Gy/30 fractions, with concomitant and adjuvant temozolomide (TMZ) only, or RT and TMZ with addition of Autologous Lymphoid Effector Cells Specific Against Tumor (ALECSAT) in an open-label phase II trial. Primary endpoint was investigator-assessed progression-free survival (PFS). Secondary endpoints were survival and safety of ALECSAT. Results Sixty-two patients were randomized to either RT and TMZ alone (n=22) or RT and TMZ with ALECSAT (n=40). Median age was 57 years (range 38-69), 95% of the patients were in good performance status (WHO 0-1). There was no significant difference between the study arms (SOC vs. ALECSAT + SOC) in PFS (7.9 vs. 7.8 months; HR 1.28; 95% CI 0.70, 2.36; P=0.42), or in median overall survival (OS) (18.3 vs. 19.2 months; HR 1.16, 95% CI 0.58, 2.31; P=0.67). The treatment groups were balanced in terms of serious adverse events (52.4% vs. 52.5%), but adverse events ≥ grade 3 were more common in the experimental arm (81.0% vs. 92.5%). Conclusion Addition of ALECSAT immunotherapy to standard treatment with radiochemotherapy was well tolerated but did not improve PFS or OS for patients with newly diagnosed GBM.

scholarly journals P14.79 Randomized phase II trial of Tumor Treating Fields plus radiation therapy plus temozolomide compared to radiation therapy plus temozolomide in patients with newly diagnosed glioblastoma

2019 ◽  
Vol 21 (Supplement_3) ◽  
pp. iii86-iii86
Author(s):  
D Limon ◽  
F Bokstein ◽  
D Blumenthal ◽  
C Ben Harush ◽  
Z Ram ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Pilot Study ◽  
Surgical Resection ◽  
Phase Ii ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Newly Diagnosed ◽  
Free Survival ◽  
Tumor Treating Fields ◽  
Randomized Phase Ii

Abstract BACKGROUND In last decade, there were numerous attempts to improve the outcome of patients with glioblastoma (GBM), but even after maximal surgical resection, radiation therapy (RT) and temozolomide (TMZ), followed by maintenance TMZ for 6 months the median OS is 14.6 months. In the EF-14 Phase III trial, the addition of Tumor Treating Fields (TTFields) at 200 kHz to maintenance TMZ increased the median OS to 20.9 months, compared with 16.0 months with maintenance TMZ alone (HR, 0.63; 95% CI, 0.53–0.76; p<0.001). Based on these results, the currently accepted standard of care for newly diagnosed GBM (ndGBM) is surgical resection if safely feasible, followed by RT with concomitant TMZ, and then followed by maintenance TMZ in combination with TTFields. Preclinical investigations have shown a radio-sensitizing effect of TTFields on glioma cells, suggesting synergistic effects between TTFields and radiotherapy. In a pilot study of 10 patients with ndGBM, we demonstrated that there was no increased treatment-related toxicity when TTFields were given in combination with RT/TMZ. The only TTFields-related adverse event was skin toxicity below the arrays. Preliminary progression free survival (PFS) data was encouraging. Based on the results of the pilot study, we designed this prospective, randomized Phase II study to further investigate if the addition of TTFields TMZ/RT treatment in ndGBM patients improves treatment efficacy and delays disease progression. MATERIAL AND METHODS Following debulking surgery or biopsy, 60 adult patients (≥18 years) with histologically confirmed GBM, KPS≥70 and life expectancy of at least 3 months will be randomized 1:1 to either a) RT with concomitant TMZ and TTFields (200 kHz) for 6 weeks followed by up to 6 months of maintenance TMZ in combination with TTFields (experimental arm) up to 24 months; or b) RT with concomitant TMZ alone followed by maintenance TMZ in combination with TTFields (control arm). Exclusion criteria: patients with early progressive disease, significant comorbidities precluding maintenance RT or TMZ or patients with an implanted electronic device. The primary endpoint is progression free survival at 12 months (PFS12). Treatment with TTFields will be continued until second progression or 24 months (the earlier of the two). All patients will be followed for survival. Grading and severity of all adverse events will be recorded using CTCAE V5.0. The sample size of 60 patients provides 80% power with a two-sided alpha level of 0.05 to detect a PFS12 of 46.5% with RT/TMZ/TTFields compared to 29.4% with RT/TMZ followed, respectively, by maintenance TMZ/TTFields (calculated from the RT/TMZ followed by maintenance TMZ/TTFields arm of the EF-14 trial). It is forecasted to take 24 months to fully recruit. Follow-up will continue for >12 months from recruitment of the last patient.

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