Neoantigen Vaccine in Esophagus Cancer Patients Following Neoadjuvant Therapy and Surgical Resection

November 24, 2025 updated by: Second Affiliated Hospital, School of Medicine, Zhejiang University

Clinical Study of a Personalized Neoantigen Vaccine in Esophagus Cancer Patients Who Have Completed Adjuvant Therapy Following Neoadjuvant Therapy and Surgical Resection

This research study is evaluating a new type of esophagus cancer vaccine called "Personalized Neoantigen Cancer Vaccine" as a possible treatment for esophagus cancer patients who have completed adjuvant therapy following neoadjuvant therapy and surgical resection. The purpose of the clinical study is evaluating the safety, tolerability and partial efficacy of the personalized neoantigen cancer vaccine in the treatment of resectable esophagus cancer, so as to provide a new personalized therapeutic strategy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

It is known that cancer patients have mutations (changes in genetic material) that are specific to an individual patient and tumor. These mutations can cause the tumor cells to produce proteins that appear very different from the body's own cells. It is possible that these proteins used in a vaccine may induce strong immune responses, which may help the participant's body fight any tumor cells that could cause the cancer to come back in the future. The study will examine the safety of the vaccine when given at several different time points and will examine the participant's blood cells for signs that the vaccine induced an immune response.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
27

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310000
        • The Second Affiliated Hospital of Zhejiang University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Must freely sign informed consent;
  2. Aged 18 to 80 years old;
  3. Histologically or cytologically confirmed diagnosis of esophagus cancer;
  4. ECOG score is 0 or 1;
  5. completed Neoadjuvant combined with PD-1 therapy ;Completed surgical resection ;At the same time, standard postoperative treatment was performed 8 ~ 12 weeks of therapy;
  6. Must provide all exons of tumor tissue sequencing data, transcriptome sequencing data and the peripheral blood of all exons sequencing data;
  7. Completion of imaging records 1 week before personalized immunotherapy, including but not limited to full-body PET-CT and brain MRI,
  8. Haematological index： White blood cells ≥ 3500 / MCL; Lymphocytes > 800/ MCL; neutrophils > 1500/ MCL; Platelets > 100000 / MCL; Hemoglobin >10.0g/dL; Total serum bilirubin <1.5× upper limit of normal value (ULN); AST/ALT<2.0 times the upper limit of normal; Serum creatinine <1.5 times the upper limit of normal；
  9. Pregnant, lactating women and women of child-bearing age must have a negative pregnancy test within 7 days before entering the group, and short-term have no fertility plan, and are willing to take protective measures (contraception or other birth control methods) before and during the clinical trial;
  10. Male patients are willing to take appropriate methods of contraception;
  11. Good compliance, able to follow research protocols and follow-up procedures;

Exclusion Criteria:

  1. Diagnosed as other malignant tumor;
  2. No neoantigen was found in the sequencing data;
  3. Patients are unable to tolerate surgery and adjuvant therapy or patients with poor immune system status;
  4. There have been bone marrow or stem cell transplants;
  5. Received other systemic antitumor agents or systemic glucocorticoids with immunosuppressants;
  6. Received other vaccine inoculation 4 weeks before treatment;
  7. With HIV, HCV, HBV infection, severe asthma, autoimmune disease,immunodeficiency or treated with immunosuppressive drugs;
  8. Uncontrolled complications include, but are not limited to, active infection, symptomatic congestive heart failure, unstable angina pectoris, and arrhythmias;
  9. Infected with herpes virus (except those with scabs of more than 4 weeks);
  10. Infected with respiratory virus (except those who have recovered for more than 4 weeks);
  11. Have severe coronary or cerebrovascular disease, or other conditions considered ineligible by the investigator;
  12. Drug abuse. Clinical, psychological or social factor result in affecting informed consent or research implementation;
  13. Have a history of drug or vaccine allergies, or people who are allergic to other potential immunotherapies;

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Personalized neoantigen vaccines
iNeo-Vac-P01 (peptides)： 300 mcg per peptide
Biological: iNeo-Vac-P01
iNeo-Vac-P01 (peptides)： 4 x 300 mcg per peptide given on days 1, 4, 8, 15, 22, 52, and 82 for a total of 7 doses;
Other Names:
  • Neoantigen peptides
Biological: GM-CSF
4 x 40 mcg (total dose 160 mcg) given on days 1, 4, 8, 15, 22, 52, and 82 for a total of 7 doses
Other Names:
  • immune adjuvant
  • granulocyte-macrophage colony stimulating factor

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
AEs
Time Frame: 1 year
To evaluate the number of patients with clinical or laboratory adverse events (AEs)
1 year
Relapse Free Survival Rate
Time Frame: 1 year
Proportion of patients who have had surgery for less than 1 year before their first documented relapse
1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Relapse Free Survival
Time Frame: 3 years
The time between the patient's completion of surgery and the first recorded relapse
3 years
Overall Survival
Time Frame: 3 years
From the time of the patient's surgery to the time of death
3 years
EORTC QLQ-C30 (version 3)
Time Frame: 3 years
Quality of life questionnaire. All questionnaire responses were transformed linearly to scores from 0 to 100. For functional scores and global QOL, higher scores represent better function and QOL, whereas a higher score for the symptom scales represents more severe symptom.
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Second Affiliated Hospital, School of Medicine, Zhejiang University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Hangzhou Neoantigen Therapeutics Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 2, 2021

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 23, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 23, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 1, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 2, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 24, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • INEO-P-006

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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