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??Impact of Instillation Timing on the Efficacy of Intravesical Therapy in Patients with Non-Muscle-Invasive Bladder Cancer: A Retrospective Cohort Study?

??Impact of Instillation Timing on the Efficacy of Intravesical Therapy in Patients with Non-Muscle-Invasive Bladder Cancer: A Retrospective Cohort Study?

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500107278
Enrollment
Unknown
Registered
2025-08-07
Start date
2025-08-08
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder cancer

Interventions

BCG therapy:None

Sponsors

West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 95 Years

Inclusion criteria

Inclusion criteria: ??Inclusion Criteria (All Must Be Met)??: 1.Diagnosed with ??non-muscle-invasive bladder cancer (NMIBC)?? after ??transurethral resection of bladder tumor (TURBT)??. 2.Received ??intravesical therapy?? (BCG or chemotherapy drugs) after TURBT, with ??at least 3 instillations?? completed. 3.Pathological type is ??urothelial carcinoma??.

Exclusion criteria

Exclusion criteria: Exclusion Criteria (Any of the Following)??: 1.Post-TURBT pathology confirmed ??non-NMIBC?? (e.g., muscle-invasive bladder cancer, prostate cancer, metastatic cancer, etc.). 2.Pathological type is ??mixed??, with ??non-urothelial carcinoma?? as the predominant component. 3.History of ??immunodeficiency diseases?? (e.g., acquired immunodeficiency, systemic lupus erythematosus). ??4.Incomplete medical records??, lacking essential information for outcome evaluation. 5.??Incomplete instillation records?, including instillation time, drug name, dosage, or administration details.

Design outcomes

Primary

MeasureTime frame
Recurrence-Free Survival (RFS);

Countries

China

Contacts

Public ContactHan Ping

West China Hospital, Sichuan University

hanping@edu.scu.cn+86 189 8060 1955

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026