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Synthetic long peptide personalized cancer vaccine

Phase 1

Muscle-Invasive Bladder Carcinoma | Monoclonal antibody | Oncology |Natera, Inc.|Last Updated: Jul 17, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment64

FDA Designations

No designations recorded

Clinical trial landscape

Synthetic long peptide personalized cancer vaccine · 1 trial · 4 indications

Phase 1 1
NCT06529822Personalized Cancer Vaccine (PCV) Strategy in Patients With Solid Tumors and Molecular Residual DiseaseMuscle-Invasive Bladder Carcinoma
RECRUITING64 Analytics
PHASE1RECRUITING
Personalized Cancer Vaccine (PCV) Strategy in Patients With Solid Tumors and Molecular Residual Disease
Muscle-Invasive Bladder CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety as measured by treatment-emergent adverse events (TEAEs)
From 1st vaccine dose through 30 days following last dose of vaccine (estimated to be 13 months)
Safety as measured by treatment-related adverse events (TRAEs)
From 1st vaccine dose through 30 days following last dose of vaccine (estimated to be 13 months)

-At least possibly related to vaccine therapy

Safety as measured by serious adverse events (SAEs)
From 1st vaccine dose through 30 days following last dose of vaccine (estimated to be 13 months)

As defined in 21 CFR 312.32: Definition: an adverse event is considered "serious" if, in the view of the investigator, it results in any of the following outcomes: * Death * A life-threatening adverse event * Inpatient hospitalization or prolongation of existing hospitalization * A persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions * A congenital anomaly/birth defect * Any other important medical event that does not fit the criteria above but, based upon appropriate medical judgment, may jeopardize the subject and may require medical or surgical intervention to prevent one of the outcomes listed above

Feasibility as measured by the success of enrolling patients with molecular residual disease
Through 30 months

The trial will be feasible if 8 patients with molecular residual disease are enrolled in 30 months

Feasibility as measured by the expected time frame for vaccine creation
Through 24 weeks

The trial will be feasible if the vaccine is created within 24 weeks from signing of treatment consent to vaccine availability.

Feasibility as measured by the rate of successful vaccine delivery
Through 1st vaccine dose (estimated to be 24 weeks)

The trial will be feasible if at least 50% of patients receive the vaccine

Secondary Endpoints

Immune response as measured by ELISPOT analysis
Through 2 years after completion of treatment (estimated to be 2.5 years)
Molecular residual disease as evaluated by ctDNA clearance using the Signatera assay
Through completion of follow-up (estimated to be 66 months)
Recurrence-free survival (RFS)
Through completion of follow-up (estimated to be 66 months)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1: Muscle Invasive Bladder Cancer (PCV)EXPERIMENTALThe schedule for vaccination will be Days 1, 4, 8, 15, 29, 57, 85, 113, 141, and 169. All study injections will be given intramuscularly and co-administered with poly-ICLC by a trained healthcare provider.
Cohort 2: Gastroesophageal Adenocarcinoma (GEC)EXPERIMENTALThe schedule for vaccination will be Days 1, 4, 8, 15, 29, 57, 85, 113, 141, and 169. All study injections will be given intramuscularly and co-administered with poly-ICLC by a trained healthcare provider.
Cohort 3: MelanomaEXPERIMENTALThe schedule for vaccination will be Days 1, 4, 8, 15, 29, 57, 85, 113, 141, and 169. All study injections will be given intramuscularly and co-administered with poly-ICLC by a trained healthcare provider.
Cohort 4: Non-Small Cell Lung CancerEXPERIMENTALThe schedule for vaccination will be Days 1, 4, 8, 15, 29, 57, 85, 113, 141, and 169. All study injections will be given intramuscularly and co-administered with poly-ICLC by a trained healthcare provider.

Interventions

NameTypeDescription
Synthetic long peptide personalized cancer vaccineBIOLOGICALNeoantigen vaccines will be provided on a patient-specific basis
Poly ICLCDRUGPoly-ICLC will be supplied by Oncovir, Inc.
Signatera assayDEVICESignatera is a clinically validated, personalized, tumor-informed, multiplex-PCR and next-generation sequencing (NGS) based clinical trial assay targeting 16 tumor-specific mutations. It is intended for the detection of ctDNA isolated from anticoagulated peripheral whole blood from post-surgical patients previously diagnosed with localized or advanced solid tumors to aid physician assessment and treatment decision-making, together with other clinical factors
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria Cohort #1: * Age ≥ 18 years. * ECOG performance status ≤ 2 (Karnofsky ≥ 60%). * Histologically confirmed muscle-invasive bladder cancer (MIBC) or upper tract urothelial carcinoma (renal pelvis and/or ureter). * Patients with carcinomas showing mixed histologies are required to ha...

Countries:United States
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Recent Changes (Last 90 Days)

LOWJul 17, 2026NCT06529822lastUpdatePostDate: changed
LOWJul 17, 2026NCT06529822lastUpdatePostDate: changed
LOWJul 9, 2026NCT06529822lastUpdatePostDate: changed
LOWJul 9, 2026NCT06529822lastUpdatePostDate: changed
MEDIUMJun 18, 2026NCT06529822Enrollment: 32 → 64
MEDIUMJun 18, 2026NCT06529822Enrollment: 32 → 64
MEDIUMJun 18, 2026NCT06529822Enrollment: 32 → 64

Frequently asked questions about Synthetic long peptide personalized cancer vaccine

What is the synthetic long peptide personalized cancer vaccine used for?

The synthetic long peptide personalized cancer vaccine is an investigational therapy being studied for use in muscle-invasive bladder carcinoma, as well as gastroesophageal adenocarcinoma, melanoma, and non-small cell lung cancer. It is currently in Phase 1 clinical development and has not been approved by the FDA.

Who is developing the synthetic long peptide personalized cancer vaccine?

Natera, Inc. (NASDAQ: NTRA) is developing the synthetic long peptide personalized cancer vaccine. The company is conducting a Phase 1 clinical trial to evaluate this investigational therapy in patients with solid tumors and molecular residual disease.

What phase is the synthetic long peptide personalized cancer vaccine in?

The synthetic long peptide personalized cancer vaccine is in Phase 1 clinical development. It is an investigational therapy, meaning it has not been approved by the FDA and is still being studied for safety and efficacy in clinical trials.

What clinical trials is the synthetic long peptide personalized cancer vaccine in?

The synthetic long peptide personalized cancer vaccine is being evaluated in a single Phase 1 clinical trial, NCT06529822, titled "Personalized Cancer Vaccine (PCV) Strategy in Patients With Solid Tumors and Molecular Residual Disease." The trial is recruiting 64 participants in the United States.

Is the synthetic long peptide personalized cancer vaccine the same as a personalized cancer vaccine (PCV)?

Yes, the synthetic long peptide personalized cancer vaccine is referred to as a personalized cancer vaccine (PCV) in clinical trial NCT06529822. The trial is studying this PCV strategy in patients with solid tumors and molecular residual disease.