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Study identifier: NCT05269381 Synced from ClinicalTrials.gov · July 27, 2026
● Recruiting

Personalized Neoantigen Peptide-Based Vaccine in Combination With Pembrolizumab for Treatment of Advanced Solid Tumors

Condition: Anatomic Stage III Breast Cancer AJCC v8 · Anatomic Stage IIIA Breast Cancer AJCC v8 · Anatomic Stage IIIB Breast Cancer AJCC v8  ·  Sponsor: Mayo Clinic

PhasePhase 1/Phase 2
Planned participants132
Who can joinAll sexes, 16 Years to no upper limit
Healthy volunteersNo

About this study

This phase I/II trial tests the safety and tolerability of an experimental personalized vaccine when given by itself and with pembrolizumab in treating patients with solid tumor cancers that have spread to other places in the body (advanced). The experimental vaccine is designed target certain proteins (neoantigens) on individuals' tumor cells. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving the personalized neoantigen peptide-based vaccine with pembrolizumab may be safe and effective in treating patients with advanced solid tumors.

This description comes directly from the study's public registry record.

Talk to the study team

Clinical Trials Referral Office  ·  855-776-0015  ·  mayocliniccancerstudies@mayo.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Mayo Clinic in FloridaJacksonville, Florida, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05269381