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First patient enrolled in Immunicum’s ALISON study

#D illustration of ovarian cancer

The Phase I clinical study evaluates DCP-001, the company’s lead cancer relapse vaccine candidate, in High-Grade Serous Ovarian Cancer (HGSOC) patients following primary standard of care treatment.

The ALISON study is carried out by Professor Hans Nijman and his research group in Groningen, the Netherlands, and investigates the ability of DCP-001 to trigger the immune system to control cancer cells that may have remained in the body after surgery and treatment with chemotherapy in order to prevent or reduce tumor reccurence. This is the first study using Immunicum’s cancer relapse vaccine approach to target a solid tumor indication and will evaluate the safety, feasibility and immunogenicity of DCP-001.

“This is the first study using Immunicum’s cancer relapse vaccine approach to target a solid tumor indication.”

“The start of the Phase I ALISON study with the first patient enrolled marks an important milestone in our clinical development strategy, as ovarian cancer is a completely new indication for Immunicum and the study is the first evaluation of DCP-001 in a solid tumor indication,” says Jeroen Rovers, Chief Medical Officer at Immunicum. “Other immunotherapies such as checkpoint inhibitors have shown relatively low responses in ovarian cancer. This study builds on our promising preclinical data showing significant reduction in tumor growth following DCP-001 administration and will further evaluate the immunogenicity of our cancer relapse vaccine candidate in patients with solid tumors for the first time.”

The Phase I ALISON study

The Phase I ALISON study is a single-center, open-label study evaluating safety and efficacy of DCP-001 in High-Grade Serous Ovarian Cancer (HGSOC) patients. HGSOC is a unique type of epithelial cancer that is characterized by the loss of function of the tumor suppressor protein, p53, which can lead to chemotherapy resistance and disease relapse. The vaccination regimen with DCP-001 will be scheduled after standard of care treatment, which includes chemotherapy either before or after debulking surgery, and will start 6 weeks following the last cycle of chemotherapy.

Patients will receive 4 bi-weekly vaccinations with 25 million cells per DCP-001 vaccination and 2 additional booster vaccinations with 10 million cells per vaccination. Patient follow-ups will be conducted for 24 months.

The primary endpoint of the study is change from baseline of DCP-001 vaccine antigen-specific T cells in peripheral blood after treatment. Key secondary endpoints include safety and tolerability after repeated DCP-001 dosing as well as recurrence free survival (RFS) and overall survival (OS) during the follow-up period.

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