DV+BCG in HER2-Expressing, BCG-Naïve High-Risk NMIBC

NCT ID: NCT07207824

Last Updated: 2025-10-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

182 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-01

Study Completion Date

2030-12-01

Brief Summary

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The purpose of this study is to learn about the safety and effects of the study medicine (Disitamab Vedotin) in people with non-muscle invasive bladder cancer. This study is seeking participants whose bladder cancer is still in early stages, has not spread outside of the bladder, has been removed with surgery, and is high risk. Each participant was assigned to one of two study treatment groups: One group is given Disitamab Vedotin and BCG.The second group is given BCG only and will not receive Disitamab Vedotin.

Detailed Description

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HERO: A Phase III Randomized Controlled Trial of Disitamab Vedotin (DV) Combined with Bacillus Calmette-Guérin (BCG) in BCG-Naïve Patients with HER2-Expressing, High-Risk Non-Muscle-Invasive Bladder Cancer

This Phase 3, open-label, randomized, controlled clinical trial will enroll approximately 182 patients, who will be assigned in a 1:1 ratio to one of two treatment groups:

Group A: Disitamab Vedotin plus BCG (induction and maintenance therapy)

Group B: BCG alone (induction and maintenance therapy)

The study is designed to demonstrate the superiority of Disitamab Vedotin combined with BCG (during both induction and maintenance phases) over BCG alone in prolonging event-free survival (EFS) among BCG-naïve participants with high-risk, HER2-expressing non-muscle invasive bladder cancer.

Conditions

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Bladder (Urothelial, Transitional Cell) Cancer NMIBC

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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DV + BCG

Disitamab Vedotin + BCG induction and maintenance

Group Type EXPERIMENTAL

DV + BCG induction and maintenance

Intervention Type DRUG

Drug: Disitamab vedotin(RC48) •An antibody-drug conjugates (ADCs) targeting HER2, has been approved in China for chemotherapy-refractory advanced UC with HER2-expression.

Other Names:

• RC48, DV

Drug: Bacillus Calmette-Guerin Immunotherapy treatment approved by NMPA for patients with high-risk non-muscle invasive bladder cancer

Other Names:

BCG

BCG

BCG induction and maintenance

Group Type ACTIVE_COMPARATOR

Active Comparator: BCG induction and maintenance

Intervention Type DRUG

Drug: Bacillus Calmette-Guerin Immunotherapy treatment approved by NMPA for patients with high-risk non-muscle invasive bladder cancer

Other Names:

BCG

Interventions

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Active Comparator: BCG induction and maintenance

Drug: Bacillus Calmette-Guerin Immunotherapy treatment approved by NMPA for patients with high-risk non-muscle invasive bladder cancer

Other Names:

BCG

Intervention Type DRUG

DV + BCG induction and maintenance

Drug: Disitamab vedotin(RC48) •An antibody-drug conjugates (ADCs) targeting HER2, has been approved in China for chemotherapy-refractory advanced UC with HER2-expression.

Other Names:

• RC48, DV

Drug: Bacillus Calmette-Guerin Immunotherapy treatment approved by NMPA for patients with high-risk non-muscle invasive bladder cancer

Other Names:

BCG

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Age ≥ 18 years.
2. Histologically confirmed high-risk, non-muscle-invasive urothelial carcinoma of the bladder (UCC) (with \>50% urothelial carcinoma as the predominant histological component), defined by the presence of any of the following: a. T1 tumor; b. High-grade Ta tumor; c. Carcinoma in situ (CIS).
3. Complete resection of all Ta/T1 papillary lesions (including patients with concomitant CIS). The most recent Transurethral Resection of Bladder Tumor (TURBT) must have been performed within 12 weeks prior to randomization. A second TURBT was required if indicated per current local applicable guidelines.
4. HER2 expression (IHC 1+/2+/3+) as confirmed by immunohistochemistry (IHC) testing at the local institution's pathology department.
5. Unwillingness or ineligibility to undergo radical cystectomy.
6. Eastern Cooperative Oncology Group (ECOG) performance status (PS) of ≤ 2.
7. Signed informed consent form (ICF).

Exclusion Criteria

1. Histologically confirmed evidence of muscle-invasive (T2 or higher), locally advanced, or metastatic urothelial carcinoma, or the presence of concurrent extravesical non-muscle-invasive urothelial carcinoma.
2. Histopathological findings of pure small cell carcinoma, pure adenocarcinoma, pure squamous cell carcinoma, or pure squamous CIS of the bladder.
3. History of upper tract urothelial carcinoma (except for cases with no recurrence within 2 years following radical treatment for UTUC).
4. Prior therapy with any other type of HER2-targeted inhibitor.
5. Major surgery within 2 weeks prior to randomization.
6. Any other condition that, in the investigator's judgment, would make the patient unsuitable for participation in this study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Xinhua Hospital, Shanghai Jiao Tong University School of Medicine

OTHER

Sponsor Role collaborator

Fujian Cancer Hospital

OTHER_GOV

Sponsor Role collaborator

Tenth People's Hospital of Tongji Univeristy

UNKNOWN

Sponsor Role collaborator

Ningbo Medical Center Li Huili Hospital

UNKNOWN

Sponsor Role collaborator

Fudan University

OTHER

Sponsor Role lead

Responsible Party

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Ding-Wei Ye

Director of Urology

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Fudan University Shanghai Cancer Center

Shanghai, Shanghai Municipality, China

Site Status

Countries

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China

Central Contacts

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Yi jun Shen, M.D.

Role: CONTACT

862164175590

Facility Contacts

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Dingwei Ye, Ph.D.

Role: primary

13817126663

Other Identifiers

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RCVDUCIIR020-2

Identifier Type: -

Identifier Source: org_study_id

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