Cancer Vaccine for Ovarian Cancer

(Cornerstone4 Trial)

HS
EJ
Overseen ByEunkyo Joung, MD, CMO
Stay on Your Current MedsYou can continue your current medications while participating
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests a new cancer vaccine, AST-201, for effectiveness and safety in individuals with advanced ovarian cancer not spread due to genetic factors. Participants will receive either the vaccine with a helper drug or a placebo, alongside standard chemotherapy. It suits those recently diagnosed with advanced ovarian cancer who have undergone successful surgery to remove most of their tumor and can begin additional treatment within six weeks. As a Phase 2 trial, the research focuses on assessing the treatment's effectiveness in an initial, smaller group of participants.

Will I have to stop taking my current medications?

The trial information does not specify if you need to stop taking your current medications. However, if you are on immune suppression therapy, you must have stopped it at least 4 weeks before starting the trial.

Is there any evidence suggesting that this trial's treatments are likely to be safe?

Research shows that AST-201, the cancer vaccine under study, has helped shrink tumors in earlier trials. This suggests it might work well with other cancer treatments. However, specific safety information for AST-201 in humans is not yet available. As a phase 2 study, the treatment has passed initial safety tests, but researchers continue to assess its safety and effectiveness. This phase evaluates how well participants tolerate the treatment and identifies potential side effects. Joining this trial contributes to important research while doctors ensure participant safety.12345

Why do researchers think this study treatment might be promising?

Researchers are excited about AST-201 for ovarian cancer because it represents a new approach to treatment. Unlike the standard of care, which typically involves chemotherapy drugs like paclitaxel and carboplatin, AST-201 is a cancer vaccine designed to stimulate the body's immune system to fight the cancer cells. This vaccine is given intradermally alongside a growth factor called rhuGM-CSF, which may enhance the immune response. By potentially improving the immune system's ability to target and destroy cancer cells, AST-201 offers a promising alternative to conventional treatments.

What evidence suggests that this cancer vaccine could be effective for ovarian cancer?

Research has shown that AST-201, a cancer vaccine, could improve outcomes for patients with newly diagnosed ovarian cancer that is homologous-recombination proficient (HRP). In earlier studies, AST-201 fought tumors in mice with ovarian cancer, indicating it might effectively target cancer cells. In this trial, participants in one arm will receive AST-201 with rhuGM-CSF, which boosts the immune system to attack cancer cells, potentially enhancing the effectiveness of standard chemotherapy treatments. Early results from similar trials suggest that combining AST-201 with a substance that increases white blood cell production might further improve treatment results. While more information from human trials is needed, these initial findings provide a strong basis for its potential use in treating ovarian cancer.34678

Who Is on the Research Team?

HS

Hyunwon Shin, MD, PhD

Principal Investigator

hyunwon.shin@astonsci.com

Are You a Good Fit for This Trial?

This trial is for patients with advanced stage III ovarian cancer who've had surgery to remove most of the tumor and can start follow-up therapy within 6 weeks. They must have a specific type of tumor (HRP) and be in good health overall, with no severe allergies to rhuGM-CSF, recent cancers except certain skin or epithelial cancers, autoimmune or inflammatory diseases, active infections like TB or hepatitis, HIV, nor be pregnant.

Inclusion Criteria

I am fully active or can carry out light work.
I can begin follow-up treatment within 6 weeks after my surgery to remove most of the cancer.
My organs are functioning well.
See 3 more

Exclusion Criteria

I do not have active infections like TB, hepatitis B, C, or HIV.
I have been on immune suppression therapy or stopped it less than 4 weeks ago.
I haven't had cancer, except for certain skin cancers, in the last 5 years.
See 3 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

4 weeks

Treatment

Participants receive AST-201 with rhuGM-CSF or placebo with rhuGM-CSF in combination with standard adjuvant chemotherapy (Paclitaxel/Carboplatin) over approximately 5 months

5 months
Intradermal administration every 3 weeks for 3 cycles, chemotherapy every 3 weeks for 6 cycles

Follow-up

Survival follow-up performed every 3 months for 2 years after randomization and every 6 months thereafter until disease progression or death

48 months
Follow-up visits by telephone, in-person, or chart review

What Are the Treatments Tested in This Trial?

Interventions

  • AST-201
Trial Overview The study tests AST-201 (a therapeutic cancer vaccine) combined with rhuGM-CSF versus a placebo plus rhuGM-CSF. Both groups will also receive standard chemotherapy drugs Paclitaxel and Carboplatin. The goal is to see if AST-201 improves outcomes for those with newly diagnosed HRP ovarian cancer after surgery.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Placebo Group
Group I: AST-301Experimental Treatment4 Interventions
Group II: PlaceboPlacebo Group4 Interventions

Find a Clinic Near You

Who Is Running the Clinical Trial?

Aston Sci. Inc.

Lead Sponsor

Trials
4
Recruited
150+

Published Research Related to This Trial

The study involved 21 patients with high-grade serous ovarian cancer treated with a vaccine and bevacizumab, showing that the treatment was generally well tolerated, with only one case of severe toxicity and a small percentage experiencing significant side effects.
While the vaccine induced an immunogenic response in a majority of patients, this response did not correlate with improved survival outcomes, although increased levels of IL-8 were linked to better progression-free survival.
Long-term outcomes of patients with recurrent ovarian cancer treated with a polyvalent vaccine with bevacizumab combination.Kahn, RM., Ragupathi, G., Zhou, QC., et al.[2023]
Ovarian cancer patients often face poor survival rates, with less than 40% surviving past 5 years, highlighting the urgent need for effective treatments like cancer vaccines that can stimulate T cell responses.
Using the murine ID8 ovarian tumor model, the study shows that combining cancer vaccines with standard treatments can enhance overall efficacy, suggesting a promising approach for improving outcomes in ovarian cancer patients.
Integrating Cancer Vaccines in the Standard-of-Care of Ovarian Cancer: Translating Preclinical Models to Human.Chiang, CL., Rovelli, R., Sarivalasis, A., et al.[2021]
Recent trials have shown that antitumor vaccines can improve progression-free survival in breast cancer and overall survival in prostate cancer, marking a significant advancement in solid tumor vaccine therapy.
While no positive Phase III trials for ovarian cancer vaccines have been reported yet, ongoing improvements in target antigens and antigen presentation, along with new biological therapies, hold promise for enhancing vaccine efficacy in this area.
Ovarian cancer vaccine trials and tribulations.Buckanovich, RJ.[2019]

Citations

Cancer Vaccine for Ovarian Cancer (Cornerstone4 Trial)What data supports the effectiveness of the treatment AST-201 for ovarian cancer? ... 201 improves outcomes for those with newly diagnosed HRP ovarian cancer ...
Efficacy and Safety of Avutometinib ± Defactinib in Recurrent ...ORR was 44% in KRAS-mutant and 17% in KRAS wild-type cohorts. The median progression-free survival was 12.9 months (95% CI, 10.9 to 20.2) ...
(PDF) 817 AST-201 (pUMVC3-hIGFBP2 N-terminus) ...AST-201 (pUMVC3-hIGFBP2 N-terminus) demonstrates anti-tumor effect in an ovarian cancer mouse model [abstract]. In: Proceedings of the American ...
Development of a nano-vaccine for high-grade serous ovarian ...A phase 2 trial with AST-201 + GM-CSF adjuvant (3 doses with 3 weeks interval) in combination with 6 doses of standard chemotherapy in 3 ...
AST-201 by EpiThany for Ovarian Cancer: Likelihood of ...According to GlobalData, Phase I drugs for Ovarian Cancer have a 73% phase transition success rate (PTSR) indication benchmark for progressing ...
Adjuvant Therapeutic Cancer Vaccine (AST-201, pUMVC3- ...The purpose of this phase 2 study is to assess the efficacy and safety for adjuvant therapeutic cancer vaccine AST-201 (pUMVC3-hIGFBP-2) in patients with newly ...
817 AST-201 (pUMVC3-hIGFBP2 N-terminus) ...A study demonstrated that AST-201 (IGFBP2 cancer vaccine) showed an anti-tumor effect as mono treatment and would be potentially leading to a synergistic ...
AST-201 - Drug Targets, Indications, PatentsStudy Highlights and the Primary Objective: The study is a randomized controlled trial designed to assess the clinical efficacy and safety of the plasmid-based ...
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