Pilot Study on Rutin Combined With Tislelizumab and GC (Gemcitabine and Cisplatin) as Neoadjuvant Therapy for Platinum-refractory Muscle-invasive Bladder Cancer
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Rutin, Gemcitabine, Cisplatin, Tislelizumab.
- Who it may be relevant to
- Registry conditions: Muscle Invasive Bladder Cancer. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
A Single-Arm, Open-Label, Multicenter Pilot Study：Rutin Combined With Tislelizumab and GC (Gemcitabine and Cisplatin) for Platinum-refractory Muscle-Invasive Bladder Cancer
Overview
This trial aims to evaluate the efficacy, safety, and biological mechanisms of rutin combined with tislelizumab and GC(Gemcitabine and Cisplatin) in platinum-refractory muscle-invasive bladder cancer patients. Key research questions include: 1. Whether rutin regulates epigenetic mechanisms in tumor cells from platinum-refractory bladder cancer patients and modulates the tumor immune microenvironment. 2. Evaluating the safety and adverse events of the combination treatment in platinum-refractory bladder cancer patients. 3. Assessing the disease control rate in platinum-refractory bladder cancer patients receiving this therapy. Patients with MIBC who exhibit no response (stable disease or progressive disease) after two cycles of neoadjuvant GC chemotherapy will receive two cycles of rutin combined with tislelizumab and GC. Safety and adverse events will be assessed after each cycle of combinational treatment. Therapeutic response will be evaluated by contrast-enhanced MRI, and surgical decisions (transurethral resection, partial cystectomy, or radical cystectomy) will be made by two senior urologists. Epigenetic alterations and the changes in immune microenvironment will be analyzed post-treatment.
Interventions
- Drug Rutin
Rutin 40 mg tid. Treatment will be given for 2 cycles (21 days per cycle) - Drug Gemcitabine, Cisplatin
Cisplatin 100 mg/m² D2 q3w, and Gemcitabine 1000 mg/m² D1, D8 q3w. Treatment will be given for 2 cycles (21 days per cycle) - Drug Tislelizumab
Tislelizumab 200 mg D1 q3w Treatment will be given for 2 cycles (21 days per cycle)
Primary outcome measures
- Tumor microenvironment [Time frame: From enrollment to the end of treatment at 6 weeks]
Secondary outcome measures (2)
- Safety and adverse events [Time frame: From enrollment to the end of treatment at 6 weeks]
- Objective remission rate [Time frame: From enrollment to the end of treatment at 6 weeks]
Eligibility criteria
Inclusion criteria
- Patients with cT2-cT4N0M0 muscle-invasive bladder cancer (MIBC)
- No response after 2 cycles of GC neoadjuvant chemotherapy
- No prior use of systemic immunotherapy or target therapy
- Tumor is measurable according to New response evaluation criteria in solid tumours: Revised RECIST guideline
- ECOG (ZPS, 5-point scale) 0-1
Exclusion criteria
- Age less than 18 years
- Patients with severe cardiac, cerebral, hepatic, or renal disease
- Severely malnourished patients
- Patients with mental illness and those without insight and unable to express exactly
- Combined with malignant tumors of other organs
- Systemic infectious diseases
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
China · 1 center
- First Affiliated Hospital of Chongqing Medical University — Chongqing
Identifiers
NCT: NCT06916494 · ZZ2025-070-02