The Combination of GX-188E Vaccination and Pembrolizumab in Patients With HPV 16 and/or 18+ Advanced Cervical Cancer

July 10, 2025 updated by: Genexine, Inc.

A Multi-Center, Open-label Phase Ib-II Trial of the Combination of GX-188E Vaccination and Pembrolizumab in Patients With Advanced, Non-Resectable HPV Type 16 and/or 18 Positive Cervical Cancer

A Multi-Center, Open-label Phase Ib-II Trial of the Combination of GX-188E Vaccination and Pembrolizumab in Patients with Advanced, Non-Resectable HPV-Positive Cervical Cancer

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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

This is an open-label Phase Ib-II trial to evaluate the safety and efficacy of GX-188E (IM administration using Ichor TDS-IM device) + pembrolizumab (P) in patients with advanced HPV-16+ or HPV-18+ cervical cancer.

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.
65

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 2
  • 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 Locations

  • Korea, Republic of
      • Busan, Korea, Republic of
        • Inje University Busan Paik Hospital
      • Daegu, Korea, Republic of, 42601
        • Keimyung University Dongsan Medical Center
      • Gyeonggi-do, Korea, Republic of, 10408
        • National Cancer Center
      • Gyeonggi-do, Korea, Republic of, 13620
        • Seoul National University Bundang Hospital
      • Seoul, Korea, Republic of, 03722
        • Severance Hospital, Yonsei University Health System
      • Seoul, Korea, Republic of, 152-703
        • Korea University Guro Hospital
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
      • Seoul, Korea, Republic of, 06351
        • Samsung Medical Center
      • Seoul, Korea, Republic of, 06591
        • The Catholic University of Korea Seoul St. Mary'S Hospital

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patients must be female and age ≥ 18 years (19 years for Korean sites)
  2. Patients with histologically confirmed advanced or metastatic HPV-positive (HPV-16 or HPV-18) cervical cancer, who have disease progression after treatment with all available therapies for metastatic disease that are known to confer clinical benefit, or are intolerant to treatment, or refuse standard treatment.
  3. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-1
  4. Life Expectancy of at least 6 months
  5. Patients must agree to provide either an archival tumor tissue sample or fresh biopsy sample for baseline biomarker tissue analyses, including staining for PD-L1. If archival tissue is not available and the patient does not have biopsy-accessible tumor lesions, the patient will be excluded.

Exclusion Criteria:

  1. Patient has disease that is suitable for local therapy administered with curative intent.
  2. Patient has a known additional malignancy that is progressing or has required active treatment within the past 3 years.
  3. Patient is expected to require any other form of antineoplastic therapy while on study; including systemic chemotherapy, radiation therapy (except for palliative purposes) biological therapy, or immunotherapy not specified in this protocol.
  4. Patient has a history of active central nervous system (CNS) metastases and/or carcinomatous meningitis.
  5. Patients have received prior therapy with an anti-PD-1, anti-PD-L1, or anti PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX 40, CD137) and was discontinued from that treatment due to a Grade 3 or higher immune-related Adverse Event (irAE)
  6. Patients with active autoimmune disease requiring systemic immunosuppressive treatment within the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment and is allowed.
  7. Patients has had an allogeneic solid organ or allogeneic bone marrow transplant

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: GX-188E, KEYTRUDA®
GX-188E: 1st day of week 1,2,4,7,13,19, 46/ 2mg KEYTRUDA® : Day 1 q3 weeks/ 200mg
Drug: GX-188E
GX-188E (1.0mg/0.5ml/vial), Intramuscular administration using electroporator, Ichor TDS-IM device
Other Names:
  • tirvalimogene teraplasmid
Drug: KEYTRUDA®
pembrolizumab(100mg/4mL/vial), Intravenous administration
Other Names:
  • pembrolizumab

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
DLT Evaluation for Safety and Tolerability(Part A)
Time Frame: within 21days
Patient will be evaluated for the first 21 days for dose-limiting toxicities.
within 21days
ORR for Efficacy (Part B&C)
Time Frame: within 24 weeks
ORR within 24 weeks (ORR24) evaluated by RECIST v1.1
within 24 weeks

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
Time-to-Best Response
Time Frame: up to 1 year
Time-to-Best Response by RECIST v1.1 and iRECIST
up to 1 year
Duration of Response (DOR)
Time Frame: up to 1 year
Duration of Response (DOR) by RECIST v1.1 and iRECIST
up to 1 year
Progression-Free Survival (PFS)
Time Frame: up to 6 months
6month- PFS by RECIST v1.1 and iRECIST
up to 6 months
Overall Survival (OS)
Time Frame: up to 1 year
Overall Survival (OS) by RECIST v1.1 and iRECIST
up to 1 year
ORR for Efficacy (Part A)
Time Frame: within 24 weeks
Overall Response Rate within 24 weeks (ORR24) by RECIST v1.1 and immune-related Response Criteria (irRC)
within 24 weeks
BORR (Part B&C)
Time Frame: up to 1 year
Best Overall Response Rate(BORR) by RECIST v1.1
up to 1 year

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.
Genexine, Inc.

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.
Merck Sharp & Dohme LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Soo-Young Hur, M.D, The Catholic University of Korea

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
June 19, 2018

Primary Completion (Actual)

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.
April 29, 2022

Study Completion (Actual)

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 21, 2023

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).
January 25, 2018

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.
February 19, 2018

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.
February 23, 2018

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.
July 30, 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.
July 10, 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.
July 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.
  • GX-188E-005
  • MK-3475-567 (Other Identifier: Merck Sharp & Dohme LLC)
  • KEYNOTE-567 (Other Identifier: Merck Sharp & Dohme LLC)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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Conditions

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