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A Phase I/II, Safety Clinical Trial of DCVAC/PCa and ONCOS-102 in Men With Metastatic Castration-resistant Prostate Cancer

A Phase I/II, Clinical Trial to Evaluate the Safety and Immune Activation of the Combination of DCVAC/PCa, and ONCOS-102, in Men With Advanced Metastatic Castration-resistant Prostate Cancer.

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03514836
Enrollment
5
Registered
2018-05-02
Start date
2018-05-23
Completion date
2021-01-25
Last updated
2021-02-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Castration-resistant Prostate Cancer

Keywords

Castrate-resistant

Brief summary

This clinical trial is to evaluate the safety of the combination of DCVAC/PCa with ONCOS-102 in men with castration-resistant advanced metastatic prostate cancer, who have progressed following initial therapy with either hormones (e.g. abiraterone and enzalutamide) or chemotherapy. Male patients with castration-resistant advanced metastatic prostate cancer, who have progressed following initial therapy with either All patients must have at least one readily accessible soft tissue/nodal tumor lesion (for intra-tumoral application of ONCOS-102 and biopsy.

Detailed description

Study Description: * All patients who fulfill all eligibility criteria will undergo a leukapheresis procedure. * ONCOS-102 administration will start within 3 weeks of leukapheresis at Week 5 (35 days since baseline +/- 2 days), and 3 further doses will be administered on a weekly basis * Cyclophosphamide A priming bolus dose of CPO (300 mg/m2 intravenously) will be given 1-3 days before the first (Week 5) and the fifth (Week 14) of ONCOS-102 administration. * DCVAC/PCa therapy will start 6 weeks after leukapheresis at Week 8. DCVAC/PCa will be administered subcutaneously in cycles, always on Day 1 (+/- 3 days) of the corresponding cycle.

Interventions

BIOLOGICALDCVac/PCa

Oncolytic adenovirus containing immunostimulatory cytokine granulocyte-monocyte colony-stimulating factor (GM-CSF). This is an experimental therapy. DCVac/Pca consists of activated autologous dendritic cells. This is an experimental therapy.

DRUGCyclophosphamide

immunomodulatory medication given around the ONCOS-102 dosing

Sponsors

SOTIO a.s.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open label combination treatment

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically or cytologically confirmed adenocarcinoma of the prostate * Radiographically documented metastatic disease with evidence of disease progression Laboratory parameters per protocol * Surgically or medically castrate * Patients who have progressed following: * a. at least initial therapy (chemotherapy or treatment with a hormonal agent known to impact survival such as abiraterone and enzalutamide); or * b. one first-line chemotherapy regimen and one additional hormonal agent known to impact survival such as abiraterone and enzalutamide; or * c. failure of two lines of chemotherapy; or * d. failure of pre-chemotherapy abiraterone or enzalutamide and subsequent chemotherapy

Exclusion criteria

* Patients with neuroendocrine or small cell cancer of the prostate 2. History of other malignant disease (with the exception of the primary prostate cancer and non-melanoma skin tumors) in the past 5 years Pre-defined co-morbidities * Administration of experimental therapy within the last 4 weeks before start of screening * Treatment with immunotherapy within the last 3 months before start of screening * Treatment with radiopharmaceutical drugs within 8 weeks before start of screening * Receipt of oncolytic virus treatment or vaccination with a live virus within 4 weeks of study start * History of organ transplantation

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival96 monthsPFS measured by modifications to the RECIST 1.1. PFS is defined as the time from the first dose of SoC therapy administered to tumor progression or death from any cause.

Secondary

MeasureTime frameDescription
Overall Survival96 monthsDefined as the time from Baseline visit to the date of death for any cause
Safety96 monthsReports of adverse events, serious adverse events, lab abnormalities utilizing NCI CTCAE v.4.033
Time to Progression-PSA96 monthsdemonstrated by rising PSA as defined by the Prostate Cancer Workging Group2
Radiographic Progression- free survival96 monthscomposite assessment of progression of bone lesions, soft-tissue lesions or death due to any cause

Countries

Czechia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026