Abstract 5465
Background
Dense stroma is a hallmark of hard-to-treat cancers such as pancreatic adenocarcinoma. VCN-01 oncolytic adenovirus is designed to replicate in cancer cells with dysfunctional RB1 pathway, improve tumor targeting and express hyaluronidase to enhance virus intratumor spreading and facilitate drug extravasation into the tumor.
Methods
The mechanisms of action of VCN-01 were tested in pancreatic xenograft models after both intravenous and intratumor administration. In a proof of concept phase I clinical trial study (8 patients), VCN-01 was escalated up to 1E+11vp per Endoscopic Ultrasound (EUS)-guided intratumor injection (3x) combined with the standard of care, SoC (gemcitabine or nab-paclitaxel/gemcitabine) in patients with advanced pancreatic adenocarcinoma.
Results
VCN-01 alone showed antitumor efficacy in preclinical models and further increased its efficacy when combined with SoC chemotherapy. VCN-01 replicated within injected tumors regardless of chemotherapy. Hyaluronidase expression by VCN-01 facilitated tumor extravasation and increased uptake of chemotherapy agents and antibodies. Data obtained from a phase 1 clinical trial of VCN-01 administered by repeated intratumor injection showed that the combination treatment was generally well-tolerated although dose limiting toxicity was found at highest dose. When combined with chemotherapy, VCN-01 stabilized the injected lesion in all patients, with a patient showing long progression free survival of 134 weeks. VCN-01 was detected as secondary peaks in blood several days after injection and in tumors at day 20-28, indicating virus replication. Hyaluronidase PH20 presence in sera was confirmed for all patients injected at 1E+11vp. Elastography of VCN-01-treated tumors evidenced reduction in tumor stiffness regardless of nab-paclitaxel co-administration.
Conclusions
VCN-01 replicates and expresses hyaluronidase after intratumor injection both in preclinical models and in patients with pancreatic cancer. Enhanced chemotherapy access and reduction of tumor stiffness favours local control of pancreatic tumours treated with VCN-01 + standard of care.
Clinical trial identification
EudraCT: 2012-005556-42.
Editorial acknowledgement
Legal entity responsible for the study
VCN Biosciences.
Funding
VCN Biosciences.
Disclosure
M. Hidalgo: Advisory / Consultancy, Speaker Bureau / Expert testimony: Celgene; Advisory / Consultancy, Research grant / Funding (institution): Pfizer; Advisory / Consultancy: Novartis; Advisory / Consultancy: MSD; Advisory / Consultancy, Research grant / Funding (institution): EMD; Speaker Bureau / Expert testimony: Ipsem; Speaker Bureau / Expert testimony: Shire; Advisory / Consultancy: SOBI; Advisory / Consultancy, Shareholder / Stockholder / Stock options: Champions Oncology; Advisory / Consultancy: Agenus; Advisory / Consultancy: Erytech; Advisory / Consultancy, Shareholder / Stockholder / Stock options: Pharmacyte; Advisory / Consultancy: Bioline; Advisory / Consultancy, Shareholder / Stockholder / Stock options: BioOncotech; Advisory / Consultancy, Research grant / Funding (institution): Oncomatrix; Advisory / Consultancy: VCN Biosciences; Advisory / Consultancy: Bayer; Advisory / Consultancy: BMS; Advisory / Consultancy, Shareholder / Stockholder / Stock options: Nelum; Advisory / Consultancy, Shareholder / Stockholder / Stock options: Eng T Cells. M. Bazan-Peregrino: Full / Part-time employment: VCN Biosciences. B. Laquente: Advisory / Consultancy, Research grant / Funding (institution): Celgene; Advisory / Consultancy: Servier; Research grant / Funding (institution): Mylan. R. Alvarez Gallego: Advisory / Consultancy: Celgene; Advisory / Consultancy, Research grant / Funding (institution): Shire. A. Mato-Berciano: Full / Part-time employment: VCN Biosciences. M. Giménez-Alejandre: Full / Part-time employment: VCN Biosciences. V. Maliandi: Full / Part-time employment: VCN Biosciences. M.C. Riesco Martinez: Speaker Bureau / Expert testimony: Merck. M. Perez-Carreras: Advisory / Consultancy: Intercept; Research grant / Funding (institution): GENFIT. 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. R. Salazar: Advisory / Consultancy, Research grant / Funding (institution): VCN Biosciences; Advisory / Consultancy: Agendia; Advisory / Consultancy: Guardant 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 Farma; 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. 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. 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: Lilly; Advisory / Consultancy, Research grant / Funding (institution): Merck; Advisory / Consultancy, Research grant / Funding (institution): MSD; Advisory / Consultancy, Research grant / Funding (institution): Novartis; Advisory / Consultancy: PharmaMar; Advisory / Consultancy, Research grant / Funding (institution): Pfizer; Advisory / Consultancy, Research grant / Funding (institution): Roche; Advisory / Consultancy, Research grant / Funding (institution): Sanofi; Advisory / Consultancy: Servier; Research grant / Funding (institution): ARMO; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution): Pharmacyclics; Research grant / Funding (institution): Boston Biomedical; Research grant / Funding (institution): Boehringer; Research grant / Funding (institution): VCN Biosciences. All other authors have declared no conflicts of interest.
Resources from the same session
1054 - Safety, efficacy, and pharmacokinetic (PK) profile of cosibelimab, an anti‐PD‐L1 antibody, in patients (pts) with advanced cancers
Presenter: Philip Clingan
Session: Poster Display session 1
Resources:
Abstract
4264 - A Phase I study of tinostamustine in patients (pts) with advanced solid tumours
Presenter: Alain Mita
Session: Poster Display session 1
Resources:
Abstract
3811 - Lurbinectedin (LUR) in combination with Irinotecan (IRI) in patients (pts) with advanced solid tumors
Presenter: Santiago Ponce Aix
Session: Poster Display session 1
Resources:
Abstract
1311 - A phase I study of varlitinib (VAR; ASLAN001) an oral pan-HER tyrosine kinase inhibitor (TKI) combined with mFOLFIRI chemotherapy in advanced solid tumors
Presenter: Aaron Tan
Session: Poster Display session 1
Resources:
Abstract
3482 - Phase I study of lapatinib and trametinib in patients with KRAS mutant colorectal, non-small cell lung and pancreatic cancer
Presenter: Sanne Huijberts
Session: Poster Display session 1
Resources:
Abstract
4749 - Pharmacokinetic (PK) and updated survival data from the Canadian Cancer Trials Group IND.226 study of durvalumab ± tremelimumab in combination with platinum-doublet chemotherapy
Presenter: Desiree Hao
Session: Poster Display session 1
Resources:
Abstract
4530 - A Phase 2a clinical trial combining ALRN-6924 and palbociclib for the treatment of patients with tumors harboring wild-type p53 and MDM2 amplification or MDM2/CDK4 co-amplification
Presenter: Funda Meric-Bernstam
Session: Poster Display session 1
Resources:
Abstract
4280 - Updated Efficacy and Safety of Entrectinib in Patients with NTRK Fusion-Positive Tumors: Integrated Analysis of STARTRK-2, STARTRK-1 and ALKA-372-001
Presenter: Christian Rolfo
Session: Poster Display session 1
Resources:
Abstract
6144 - An international randomized cross-over bio-equivalence study of oral paclitaxel + HM30181 compared with weekly intravenous (IV) paclitaxel in patients with advanced solid tumors
Presenter: Christopher Jackson
Session: Poster Display session 1
Resources:
Abstract
4228 - Clinical Evaluation of Drug-Eluting Bead Transcatheter Arterial Chemoembolization(D-TACE) versus Conventional TACE in Treatment of unresectable Hepatocellular Carcinoma
Presenter: Yi Chen
Session: Poster Display session 1
Resources:
Abstract