RC48-ADC in Combination With Gemcitabine in High Risk NMIBC Subjects

ConditionNMIBC
Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorRemeGen Co., Ltd.

About this trial

In this study, participants with high risk non-muscle-invasive bladder cancer (NMIBC) who are BCG Naïve or BCG Unresponsive and are considered ineligible for or have refused to undergo radical cystectomy, will receive RC48-ADC in combination with gemcitabine.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Diagnosis in accordance with the Chinese Guidelines for the Treatment of Bladder Cancer (2022) high-risk non-muscle invasive bladder cancer (NMIBC) and meeting any of the following ± carcinoma in situ (CIS): 1. stage T1 tumor of any grade; 2. high-grade tumor; 3. multiple and/or recurrent tumors, with recurrent tumors excluding low-grade solitary tumors.

Histopathological satisfaction of uroepithelial carcinoma predominant by histopathology, confirming the absence of muscular infiltration.

Completion of TURBT and resection of all visible lesions within 3 weeks prior to study dosing.

Clinical staging (cTa/T1±CIS, N0, M0) and absence of distant metastases as assessed by imaging (which needs to include at least CTU) within 3 months prior to enrollment.

Disqualifiers

muscle-invasive bladder cancer (T2 and above) and/or with regional lymph nodes and distant metastases

Combined extra-vesical (i.e. urethral, ureteral or renal pelvis) uroepithelial carcinoma.

Received any other antitumor therapy, such as chemotherapy, radiotherapy, targeted therapy, immunotherapy, etc., within 4 weeks prior to study dosing, excluding 1 dose of infusion chemotherapy completed immediately after TURBT.

Have not recovered from an adverse event caused by a previously applied antineoplastic agent to CECAT 5.0 grade 0-1 within 2 weeks prior to the start of study dosing.

Trial design

Design model

Single group

Treatments tested in this trial

  • RC48-ADC in Combination with gemcitabine

    Drug

    RC48-ADC IV (intravenous) 2.0mg/kg IV, Q2W, 8W; Q4W, 40W Gemcitabine Intravesical 1000mg induction QW,8W; maintenance Q4W,40W

Treatment groups

85 Participants
are divided into 2 treatment groups
Group A: cohort 1Experimental treatment 1 intervention
Group B: cohort 2Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

12-month Disease Free Survival Rate

Time frame
12 month

Secondary outcomes

1

Complete Response Rate

Time frame
3 month
2

6-month Disease Free Survival Rate

Time frame
6 month
3

18-month Disease Free Survival Rate

Time frame
18 month
4

24-month Disease Free Survival Rate

Time frame
24 month

Other outcomes

Sponsors and contacts

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