Neoantigen Peptide Vaccine Strategy in Pancreatic Cancer Patients Following Surgical Resection and Adjuvant Chemotherapy

Recruiting at1 trial location

Overseen by William E Gillanders, M.D.

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Phase 1

Waitlist Available

Sponsor: Washington University School of Medicine

Stay on Your Current Meds

No Placebo Group

Trial Summary

What is the purpose of this trial?

This is a phase 1 open-label study to evaluate the safety and immunogenicity of a neoantigen peptide vaccine strategy in pancreatic cancer patients following surgical resection and adjuvant chemotherapy. The neoantigen peptide vaccines will incorporate prioritized neoantigens and personalized mesothelin epitopes and will be co-administered with poly-ICLC. The hypothesis of this study is that neoantigen peptide vaccines will be safe and capable of generating measurable neoantigen-specific CD4 and CD8 T cell responses.

Research Team

William E Gillanders, M.D.

Principal Investigator

Washington University School of Medicine

Eligibility Criteria

Inclusion Criteria

Able to understand and willing to sign an IRB approved written informed consent document.

Normal bone marrow and organ function as defined below: WBC>=3,000/μL, absolute neutrophil count>=1,500/μL, platelets>=100,000/μL, total bilirubin≤1.5 X institutional upper limit of normal (subjects with Gilbert's syndrome may be enrolled despite a total bilirubin level >1.5 mg/dL if their conjugated bilirubin is <1.5 x ULN), AST≤ X institutional upper limit of normal, creatinine≤1.5 X institutional upper limit of normal, International Normalized Ratio (INR) and activated partial thromboplastin time (PTT) < 1.5 x ULN provided the patient is not on anticoagulation therapy.

Patients who have had a stent placed for biliary obstruction can be included in the study provided serum bilirubin at time of enrollment is within protocol limits.

Exclusion Criteria

Prior or currently active autoimmune disease requiring management with immunosuppression. This includes inflammatory bowel disease, ulcerative colitis, Crohn's disease, systemic vasculitis, scleroderma, psoriasis, multiple sclerosis, hemolytic anemia, immune-mediated thrombocytopenia, rheumatoid arthritis, systemic lupus erythematosus, Sjögren's syndrome, sarcoidosis, or other rheumatologic disease or any other medical condition or use of medication (e.g., corticosteroids) which might make it difficult for the patient to complete the full course of treatments or to generate an immune response to vaccines. In the case of asthma or chronic obstructive pulmonary disease taking inhaled corticosteroids that does not require daily systemic corticosteroids is acceptable. Additionally, local acting steroids (topical, inhaled, or intraarticular) will be allowed. Patients on intermittent or short course steroids will be allow if the dose does not exceed 4 mg of dexamethasone (or equivalent) per day for > 7 consecutive days. Any patients receiving steroids should be discussed with the PI to determine if eligible.

Pregnant and/or breastfeeding.

Known HIV-positive status. These patients are ineligible because of the potential inability to generate an immune response to vaccines.

Treatment Details

Interventions

• Neoantigen Peptide Vaccine (Cancer Vaccine)
• Poly ICLC (Other)

Participant Groups

Group I: Neoantigen Peptide Vaccine Experimental Treatment 3 Interventions

The schedule for vaccination will be Days 1, 4, 8, 15, and 22 (delays of up to 96 hours are allowed for each dose based on the adverse events experienced). Additional vaccinations will be given on Days 50 and 78 (+/- 2 weeks). The first vaccine dose may be administered following confirmation of disease-free status and within 90 days following date of repeat imaging. All study injections will be given subcutaneously and co-administered with poly-ICLC by a trained healthcare provider.

Who Is Running the Clinical Trial?

Washington University School of Medicine

Lead Sponsor

Trials

2,027

Recruited

2,353,000+

David H. Perlmutter

Washington University School of Medicine

Chief Executive Officer since 2015

MD from Washington University School of Medicine

Paul Scheel

Washington University School of Medicine

Chief Medical Officer since 2022

MD from Washington University School of Medicine

National Institutes of Health (NIH)

Collaborator

Trials

2,896

Recruited

8,053,000+

Dr. Jeanne Marrazzo

National Institutes of Health (NIH)

Chief Medical Officer

MD from University of California, Los Angeles

Dr. Jay Bhattacharya

National Institutes of Health (NIH)

Chief Executive Officer

MD, PhD from Stanford University

National Cancer Institute (NCI)

Collaborator

Trials

14,080

Recruited

41,180,000+

Dr. Douglas R. Lowy

National Cancer Institute (NCI)

Chief Executive Officer since 2023

MD from New York University School of Medicine

Dr. Monica Bertagnolli

National Cancer Institute (NCI)

Chief Medical Officer since 2022

MD from Harvard Medical School