Abstract of the presentation which will be presented by Dr. Liau along with other 49 authors on 20 Nov is now published in NEURO - Oncology November 2022 Issue. Note don't confuse it with the peer-reviewed journal publication we all have been anticipating.
AbstractBACKGROUND. Standard of care (SOC) and patient survival in glioblastoma have changed little in the past 17 years. We evaluated in a phase 3 trial w
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CTIM-27. AUTOLOGOUS TUMOR LYSATE-LOADED DENDRITIC
CELL VACCINATION IMPROVES SURVIVAL IN PATIENTS WITH
NEWLY DIAGNOSED AND RECURRENT GLIOBLASTOMA:
SURVIVAL RESULTS FROM A PHASE 3 TRIAL
Linda M. Liau1, Keyoumars Ashkan2, Steven Brem3,
Jian Campian4, John Trusheim5, Fabio Iwamoto6, David Tran7,
George Anstass8, Charles Cobbs9, Jason Heth10, Michael Salacz11
Stacy D'Andre12, Robert Aiken13, Yaron Moshel13, JooYeon Nam14,
Clement Pillainayagam15, Stephanie Wagner16, Kevin Walter17,
Rekha Chaudary18, Samuel Goldlust19, Ian Lee20, Daniela Bota21,
Heinrich Elinzano22, Jai Grewal23, Kevin Lillehei24, Tom Mikkelsen25,
Tobias Walbert20, Steve Abram26, Andrew Brenner27, Matthew Ewend28,
Simon Khagi29, Darren Lovick30, Jana Portnow31, Lyndon Kim32,
William Loudon33, Nina Martinez34, Reid Thompson35, David Avigan36,
Karen Fink37, Francois Geoffroy38, Pierre Giglio39, Oleg Gligich40,
Dietmar Krex41, Scott M Lindhorst42, Jose Lutzky43, Hans-Joerg Meisel44,
Minou Nadji-Ohl45, Lhagva Sanchin44, Andrew Sloan46, and
Marnix Bosch47; 1University of California, Los Angeles, Los Angeles,
USA, 2King's College Hospital, London, United Kingdom, 3University
of Pennsylvania, Philadelphia, PA, USA, 4Mayo Clinic, Department
of Oncology, Rochester, MN, USA, 5Abbott Northwestern Hospital,
Minneapolis, USA, 6Division of Neuro-Oncology, New York-Presbyterian/
Columbia University Medical Center, New York, NY, USA, 7University of
Florida, Gainesville, FL, USA, 8Washington University, St. Louis, MO, USA,
9Swedish Hospital, Seattle, WA, USA, 10University of Michigan, Ann Arbor,
MI, USA, 11Rutgers University, New Brunswick, NJ, USA, 12Mayo Clinic,
Rochester, MN, USA, 13Atlantic Healthcare, Summit, NJ, USA, 14Rush
Medical College, Chicao, IL, USA, 15The Ohio State University, Columbus,
OH, USA, 16Columbus Regional Health, Columbus, IN, USA, 17University
of Rochester, Rochester, NY, USA, 18University of Cincinnati, Cincinnati,
OH, USA, 19Hackensack University, Hackensack, NJ, USA, 20Henry Ford
Health, Detroit, MI, USA, 21University of California Irvine, Irvine, CA,
USA, 22Rhode Island Hospital, Providence, RI, USA, 23Mount Sinai South
Nassau Hospital, Oceanside, NY, Oceanside, NY, USA, 24University
of Colorado, Denver, CO, USA, 25Henry Ford Health System, Detroit,
MI, USA, 26St. Thomas Hospital, Nashville, TN, USA, 27UT Health San
Antonio, San Antonio, TX, USA, 28University of North Carolina, Durham,
NC, USA, 29Dartmouth University, Hanover, NH, USA, 30Advent Health,
Kansas City, KS, USA, 31City of Hope, Duarte, CA, USA, 32Mount Sinai
Hospital, New York, NY, USA, 33St. Joseph's Hospital, Orange, CA, USA,
34Jefferson University, Philadelphia, PA, USA, 35Vanderbilt University,
Nashville, TN, USA, 36Beth Israel Deaconess Medical Center, Cambridge,
MA, USA, 37Baylor University Medical Center, Dallas, TX, USA, 38Illinois
Cancer Care, Peoria, IL, USA, 39Ohio State University Comprehensive
Cancer Center, Columbus, OH, USA, 40Mount Sinai Medical Center, Miami
Beach, FL, USA, 41Department of Neurosurgery, University of Dresden,
Dresden, Germany, 42Medical University of South Carolina, Charleston,
SC, USA, 43University of Miami, Miami, FL, USA, 44Bergmannstrost, Halle,
Germany, 45Klinikum der Landeshauptstadt Stuttgart, Stuttgart, Germany,
46Department of Pathology and Department of Neurosurgery, Case
Western Reserve University and University Hospitals Cleveland Medical
Center; Seidman Cancer Center and Case Comprehensive Cancer Center,
Cleveland, USA, 47Northwest Biotherapeutics, Inc, Bethesda, MD, USA
BACKGROUND: Standard of care (SOC) and patient survival in glio-
blastoma have changed little in the past 17 years. We evaluated in a phase 3
trial whether adding an autologous tumor lysate-loaded dendritic cell vaccine
(murcidencel) to SOC extends survival. Patients and METHODS: Newly
diagnosed glioblastoma patients were randomized 2:1 to either murcidencel
or placebo. Under a crossover design, all patients could receive murcidencel
following tumor recurrence. All parties remained blinded regarding treat-
ments before recurrence. Patients thus received murcidencel at new diag-
nosis (nGBM) or at recurrence (rGBM) following crossover from placebo.
The primary and secondary endpoints compare overall survival (OS) with
contemporaneous, matched external controls. Four sets of analyses were
conducted to ensure rigorous matching of the controls, reduce biases, and
confirm the robustness of the results. RESULTS: 331 patients were enrolled.
With the crossover, 89% received murcidencel. Median OS (mOS) for nGBM
patients (n = 232) was 19.3 months from randomization (22.4 months from
surgery) with murcidencel vs. 16.5 months from randomization in the con-
trols (HR = 0.80, p = 0.002). Survival at 48 months from randomization
was 15.7% vs. 9.9%, and at 60 months was 13% vs. 5.7%. For rGBM
(n = 64), mOS was 13.2 months from relapse vs. 7.8 months in the controls
(HR = 0.58, p < 0.001). Survival at 24 months post-recurrence was 20.7%
vs. 9.6%, and at 30 months post-recurrence was 11.1% vs 5.1%. In nGBM
patients with methylated MGMT (n = 90), mOS was 30.2 months from
randomization (33 months from surgery) with murcidencel vs. 21.3 months
from randomization in the controls (HR = 0.74, p = 0.027). The treatment
was well tolerated, with only 5 serious adverse events deemed at least pos-
sibly related to the vaccine. CONCLUSION: Clinically meaningful and
statistically significant survival extension was seen in both nGBM and
rGBM patients treated with murcidencel and SOC compared with contem-
poraneous, matched external controls who received SOC alone.