Abstract 5185
Background
Expression of hyaluronidase from the selective oncolytic adenovirus VCN-01 modifies tumor matrix in pancreatic tumours. Such effect enhances gemcitabine uptake and induces potent immunomodulatory signals that could help recruit CD8+-T cells.
Methods
VCN-01 was administered as a single IV injection to 40 patients with ECOG 0-1 at doses ranging from 1E11 to 1E13 viral particles per patient (vp) as a single agent in patients with advanced solid tumors or in combination with gemcitabine/nab-paclitaxel in patients with advanced pancreatic adenocarcinoma using two independent administration regimens (concomitant or sequential). Blood levels of VCN-01 DNA and hyaluronidase together with several immunological markers and VCN-01 presence in paired tumor biopsies were measured. Response was assessed using RECIST v1.1 criteria.
Results
The most commonly reported VCN-01-associated adverse events of grade 3 or higher included transaminase increase, thrombocytopenia and neutropenia, accounting for 27% and 10% of patients respectively for the combination of VCN-01 with gemcitabine/nab-paclitaxel in the concomitant and the sequential regimen. Recommended Phase 2 Dose (RP2D) was 1E+13vp/patient both in monotherapy and in combination with chemotherapy in a sequential regimen whereas 3.3E+12vp was the RP2D for the concomitant regimen. VCN-01 reached and replicated in tumors when administered systemically. VCN-01 dose correlated with hyaluronidase positivity in sera and sustained viremia for over 3 weeks indicating replication. VCN-01 administration changed tumour environment into a more pro-inflammatory state, inducing CD8 T-cells infiltration and upregulation of IDO in 64% patients. RECIST evaluation resulted in a response rate between 40-45% ORR depending on regimen including a complete response and several partial responses.
Conclusions
VCN-01 shows a good safety profile when administered systemically in combination with the standard of care for pancreatic cancer. Its ability to reach systemically the tumours and modify tumour matrix to favour immune infiltration results in evidences of clinical activity.
Clinical trial identification
2012-005555-16.
Editorial acknowledgement
Legal entity responsible for the study
VCN Biosciences.
Funding
VCN Biosciences.
Disclosure
R. Garcia-Carbonero: Advisory / Consultancy: AAA; Advisory / Consultancy, Research grant / Funding (institution): Amgen; Advisory / Consultancy, Research grant / Funding (institution): Bayer; Advisory / Consultancy, Research grant / Funding (institution): BMS; Advisory / Consultancy, Research grant / Funding (institution): Ipsen; Advisory / Consultancy, Research grant / Funding (institution): Lilly; Advisory / Consultancy, Research grant / Funding (institution): Merck; Advisory / Consultancy, Research grant / Funding (institution): MSD; Advisory / Consultancy, Research grant / Funding (institution): Novartis; Advisory / Consultancy, Research grant / Funding (institution): Pharma Mar; Advisory / Consultancy, Research grant / Funding (institution): Pfizer; Advisory / Consultancy, Research grant / Funding (institution): Roche; Advisory / Consultancy, Research grant / Funding (institution): Sanofi; Advisory / Consultancy, Research grant / Funding (institution): Servier; Research grant / Funding (institution): ARMO Biosciences; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution): Pharmacyclics; Research grant / Funding (institution): Boston Medicals; Research grant / Funding (institution): Boehringer; Research grant / Funding (institution): VCN Biosciences. M. Gil Martín: Speaker Bureau / Expert testimony: Roche; Speaker Bureau / Expert testimony: PharmaMar; Speaker Bureau / Expert testimony: AstraZeneca. R. Alvarez Gallego: Advisory / Consultancy: Celgene; Advisory / Consultancy, Research grant / Funding (institution): Shire. T. Macarulla Mercade: Advisory / Consultancy: Servier; Advisory / Consultancy: Shire; Advisory / Consultancy, Research grant / Funding (institution): Roche; Advisory / Consultancy: Sanofi; Advisory / Consultancy: Baxter; Advisory / Consultancy, Research grant / Funding (institution): Celgene; Research grant / Funding (institution): Agios; Research grant / Funding (institution): Aslan; Advisory / Consultancy: AstraZeneca; Research grant / Funding (institution): Bayer; Research grant / Funding (institution): Genentech; Research grant / Funding (institution): Halozyme; Research grant / Funding (institution): Immunomedics; Research grant / Funding (institution): Lilly; Research grant / Funding (institution): Merimarck; Research grant / Funding (institution): Millenium; Research grant / Funding (institution): Novartis; Research grant / Funding (institution): Pfizer; Research grant / Funding (institution): Pharmacyclics. M.C. Riesco Martinez: Speaker Bureau / Expert testimony: Merck. C. Guillen-Ponce: Research grant / Funding (institution): BeiGene; Research grant / Funding (institution): Incyte; Research grant / Funding (institution): PH Research; Research grant / Funding (institution): Novartis; Research grant / Funding (institution): Erytech Pharma; Research grant / Funding (institution): VCN Biosciences; Research grant / Funding (institution): Halozyme. N. Vidal: Research grant / Funding (institution): VCN Biosciences. F.X. Real: Speaker Bureau / Expert testimony: Roche; Research grant / Funding (institution): VCN Biosciences. V. Maliandi: Full / Part-time employment: VCN Biosciences. A. Mato-Berciano: Full / Part-time employment: VCN Biosciences. M. Bazan-Peregrino: Full / Part-time employment: VCN Biosciences. G. Capella: Advisory / Consultancy, Research grant / Funding (institution), Shareholder / Stockholder / Stock options: VCN Biosciences. R. Alemany: Advisory / Consultancy, Research grant / Funding (institution), Shareholder / Stockholder / Stock options: VCN Biosciences; Research grant / Funding (institution): Lokon Pharma; Research grant / Funding (institution): Mologen. E. Blasi: Full / Part-time employment: VCN Biosciences. C. Blasco: Full / Part-time employment: VCN Biosciences. M. Cascallo: Leadership role, Shareholder / Stockholder / Stock options, Full / Part-time employment, Officer / Board of Directors: VCN Biosciences. R. Salazar: Advisory / Consultancy, Research grant / Funding (institution): VCN Biosciences; Advisory / Consultancy: Agendia; Advisory / Consultancy: Guardiant Health; Advisory / Consultancy, Research grant / Funding (institution): Roche Diagnostics; Advisory / Consultancy: Ferrer; Advisory / Consultancy, Speaker Bureau / Expert testimony: Pfizer; Advisory / Consultancy, Speaker Bureau / Expert testimony, Research grant / Funding (institution): Novartis; Advisory / Consultancy: Ipsen; Advisory / Consultancy, Speaker Bureau / Expert testimony: Amgen; Advisory / Consultancy, Speaker Bureau / Expert testimony, Research grant / Funding (institution): Merck; Advisory / Consultancy, Research grant / Funding (institution): Roche Pharma; Advisory / Consultancy: Lilly; Advisory / Consultancy, Speaker Bureau / Expert testimony: MSD; Speaker Bureau / Expert testimony: AZD; Speaker Bureau / Expert testimony: Celgene; Leadership role, Shareholder / Stockholder / Stock options: Sace MedHealth; Research grant / Funding (institution): PsiOxus; Research grant / Funding (institution): Mologen. All other authors have declared no conflicts of interest.
Resources from the same session
3695 - A Phase 1b/2 Study of Onvansertib (PCM-075) in Combination with FOLFIRI and Bevacizumab for Second Line Treatment of Metastatic Colorectal Cancer in Patients with a KRAS Mutation
Presenter: Heinz Josef Lenz
Session: Poster Display session 2
Resources:
Abstract
4250 - Phase II study of avelumab in combination with cetuximab as a rechallenge strategy in pre-treated RAS wild type metastatic colorectal cancer patients: CAVE (cetuximab-avelumab) Colon.
Presenter: Erika Martinelli
Session: Poster Display session 2
Resources:
Abstract
5234 - The ORCHESTRA trial; A phase III trial of adding tumor debulking to systemic therapy versus systemic therapy alone in multi-organ metastatic colorectal cancer (mCRC).
Presenter: Lotte Bakkerus
Session: Poster Display session 2
Resources:
Abstract
5294 - EMERGE: Epigenetic Modulation of the Immune Response in Gastrointestinal cancers
Presenter: Elizabeth Cartwright
Session: Poster Display session 2
Resources:
Abstract
913 - Phase III, international, multicenter, randomized, open-label trial of adjuvant nab-paclitaxel plus gemcitabine (nab-P/G) vs gemcitabine (G) alone for surgically resected pancreatic adenocarcinoma (APACT): subgroup analyses
Presenter: Margaret Tempero
Session: Poster Display session 2
Resources:
Abstract
1668 - FOLFIRINOX in locally advanced (LA) and borderline resectable (BR) pancreatic adenocarcinoma : update of the AGEO cohort.
Presenter: Edouard Auclin
Session: Poster Display session 2
Resources:
Abstract
2559 - Impact of adjuvant treatment with nab-paclitaxel and gemcitabine (nab-P+GEM) vs gemcitabine alone (GEM) on health-related quality of life (QoL) in patients (pts) with surgically resected pancreatic adenocarcinoma (PA) in the Adjuvant Pancreatic Adenocarcinoma Clinical Trial (APACT)
Presenter: Hanno Riess
Session: Poster Display session 2
Resources:
Abstract
4897 - Early detection of pancreatic ductal adenocarcinoma using methylation signatures in circulating tumor DNA
Presenter: Xiao-ding Liu
Session: Poster Display session 2
Resources:
Abstract
1755 - Evaluation of minimal important difference (MID) for the European Organisation for Research and Treatment of Cancer (EORTC) Pancreatic Cancer Module (PAN26) in patients with surgically resected pancreatic adenocarcinoma
Presenter: Michele Reni
Session: Poster Display session 2
Resources:
Abstract
2876 - Multispectral analysis of lymphocyte complexity in periampullary adenocarcinoma
Presenter: Sebastian Lundgren
Session: Poster Display session 2
Resources:
Abstract