Development and validation of the novel recurrence risk stratification for initial non-muscle invasive bladder cancer

Development and validation of the novel recurrence risk stratification for initial non-muscle invasive bladder cancer - Development and validation of the novel recurrence risk stratification for initial non-muscle invasive bladder cancer

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000021878

Enrollment

856

Registered

2016-04-12

Start date

2013-12-31

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

non-muscle invasive bladder cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: In this multicentre retrospective cohort study, we analyzed data from patients with NMIBC who underwent initial TUR-Bt at 4 Juntendo University Hospitals and Teikyo University Hospital between 2000 and 2013 (JT cohort). To achieve adequate pathological staging, the complete resection aimed to include the muscle layer of the bladder wall.

Exclusion criteria

Exclusion criteria: Patients with any of the following were excluded from this analysis: (i) non-Urothelial carcinoma histology, (ii) follow-up periods < 3 months: (iii) history of muscle-invasive or metastatic bladder cancer; (iv) history of carcinoma of the urethra, prostate (ducts or stroma), or upper urinary tract; (v) history of local radiation therapy to the pelvis; (vi) history of every kind of chemotherapy; (vii) history of previous bacillus Calmette-Guerin (BCG) therapy.

Design outcomes

Primary

Measure	Time frame
Recurrence free survival rate	—

Secondary

Measure	Time frame
Progression disease, and death of bladder cancer	—

Countries

Japan

Contacts

Public ContactTakeshi Ieda

Juntendo University, Graduate School of Medicine Department of Urology

tieda@juntendo.ac.jp03-3813-3111

Outcome results