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Phase II Prospective Cohort Study of Intravesical Recombinant Human Type 5 Adenovirus Injection for Treatment of High-Risk Non-Muscle Invasive Bladder Cancer: Evaluating Efficacy and Safety

NCT07356791 · Status: NOT_YET_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 18

Last updated 2026-01-21

No results posted yet for this study

Summary

This is a prospective, open label, single center clinical study on the use of recombinant human adenovirus type 5 injection for bladder instillation therapy in high-risk non muscle invasive bladder urothelial carcinoma patients. The study was administered in a dose escalation manner, starting from a relatively safe dose of 1.0 × 10 \^ 12vp as the first dose group, and a 6-week DLT observation period was set up to ensure the safety of the study. Expected to enroll 12-18 participants. The subjects need to undergo maximum transurethral resection of the bladder (TURBT) and imaging diagnosis, and biological samples such as blood, urine, and biopsy tissue should be collected before treatment. The patient will receive bladder instillation therapy with recombinant human adenovirus type 5 injection after TURBT surgery. The subjects should receive a fixed dose of recombinant human adenovirus type 5 injection (1.0 × 10 \^ 12 vp or 2.0 × 10 \^ 12 vp or 3.0 × 10 \^ 12 vp) per week via bladder instillation for 6 weeks for induction therapy, followed by maintenance infusion of the same dose once a week for 3 weeks after the first induction infusion at 3, 6, 12, 18, and 24 months. After the first intravesical intervention for 3 months, tumor site pathology, imaging, and cytology will be obtained through diagnostic TURBT for tumor evaluation. Patients who achieve complete remission will maintain the same induction cycle, and will receive follow-up every 3 months for 2 years, every 6 months for more than 2 years, and once a year for more than 3 years. Patients who are intolerant to intravesical treatment (evaluated by the researchers) will be directly discontinued.

Conditions

  • Bladder (Urothelial, Transitional Cell) Cancer

Interventions

DRUG

Recombinant Human Adenovirus Type 5 injection

The administration cycle of this experiment includes 6 induction perfusion periods (once a week for 6 consecutive weeks) and 15 maintenance perfusion periods (once a week for the first 3 weeks after 3, 6, 12, 18, and 24 months of initial induction perfusion, for a total of 3 times a month). This study will adopt the "3+3" principle for dose escalation until DLT is determined. The DLT observation period is 6 weeks before the induction perfusion period. This experiment will preset three dose groups: 1 × 10\^12vp, 2 × 10\^12vp, and 3 × 10\^12vp.

Sponsors & Collaborators

  • RenJi Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-02-01
Primary Completion
2026-12-31
Completion
2027-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07356791 on ClinicalTrials.gov