Entinostat & Chemotherapy for Locally Advanced or Metastatic Bladder Cancer

November 22, 2025 updated by: Hongqian Guo, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

Entinostat Combined With Chemotherapy as Second-line Therapy for Unresectable Locally Advanced or Metastatic Bladder Cancer: A Single-arm, Prospective Clinical Trial

This single-center single-arm, open-label prospective clinical trial aimed to evaluate the efficacy and safety of entinostat combined with chemotherapy as second-line therapy for unresectable locally advanced or metastatic bladder cancer.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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 (Estimated)

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.
29

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 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.
  • Name: Hongqian Guo, PhD

Study Contact Backup

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210008
        • Department of Urology, Drum Tower Hospital, Medical School of Nanjing University, Institute of Urology, Nanjing 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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histopathologic confirmed unresectable advanced or metastatic bladder cancer, except for those with squamous differentiation, glandular differentiation or both;
  • Failure of first-line treatment;
  • There is at least one measurable lesion according to RECIST 1.1;
  • Archived tumor tissue samples or tumor biopsies must be provided;
  • ECOG score of 0-1 an an estimated survival of at least 6 months;
  • Adequate organ function;
  • Patients voluntarily participated in this study, signed the informed consent form, and had good compliance;
  • Women with fertility must consent to contraception during the study and for 6 months after the last dose of study drug.

Exclusion Criteria:

  • Patients who received platinum-based chemotherapy after failure of first-line treatment;
  • Patients who received platinum-based chemotherapy withnin a 24 month before this trial;
  • Those who have received other anti-tumor treatment or participated in other clinical studies within 4 weeks before the start of the study, or have not recovered from the last toxicity (except grade 2 hair loss and grade 1 neurotoxicity);
  • Concomitant disease such as uncontrolled hypertension or diabetes, renal inadequacy, myocardial infarction, severe angina;
  • Female subjects who are pregnant, breastfeeding or planning to become pregnant during the study;
  • Patients with serious physical or mental illnesses.

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: Entinostat plus chemotherapy
The study was divided into two phases: chemotherapy phase and continuous treatment phase. During chemotherapy phase, patients receive 6 cycles of GC (gemcitabine and cisplatin) chemotherapy along with entinostat followed by efficacy evaluation. If stable disease is reached according to RECIST 1.1 criteria, patients may receive continuous entinostat treatment until disease progression or intolerable side effects.
Drug: Entinostat
Take entinostat 5mg orally once weekly (at least 1 hour before meal and 2 hours after meal).
Drug: Chemotherapy
Gisantinib and cisplatin chemotherapy for 6 cycles, 21 days per cycle. Gisantinib 1000mg/m2 is given intravenously on Day 1 and 8 for each cycle while cisplatin 70mg/m2 is given intravenously on Day2.

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
Objective response rate, ORR
Time Frame: 36 months
ORR refers to the percentage of confirmed cases of complete response (CR) and partial response (PR) according to the RECIST (Response Evaluation Criteria in Solid Tumours) version 1.1.
36 months

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
ProgressionFree Survival, PFS
Time Frame: 36 months
PFS refers to the time from the beginning of treatment to disease progression or death from any reason (whichever occurs first).
36 months
Overall Survival, OS
Time Frame: 36 months
OS refers to the time from the beginning of treatment to death from any reason.
36 months
Disease Control Rate, DCR
Time Frame: 36 months
The percentage of cases with CR, PR, and SD (≥4 weeks) among patients with evaluable efficacy.
36 months

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.
The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

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: Hongqian Guo, PhD, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital

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 (Estimated)

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 1, 2025

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.
September 30, 2028

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.
April 30, 2029

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).
November 22, 2025

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.
November 22, 2025

First Posted (Estimated)

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.
December 3, 2025

Study Record Updates

Last Update Posted (Estimated)

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 3, 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 22, 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

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.
  • IUNU-UC-108

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

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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