Validation study of PLaCT classification for malignant ureteral obstruction in patients treated with metallic stents.

Validation study of PLaCT classification for malignant ureteral obstruction in patients treated with metallic stents. - Validation study of PLaCT classification for malignant ureteral obstruction in patients treated with metallic stents.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000057722

Enrollment

Registered

2025-04-25

Start date

2019-10-25

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

Patients with malignant tumors that have tumor-induced ureteral obstruction

Interventions

Installation of a metallic ureteral stent for ureteral obstruction caused by a primary or metastatic tumor in patients with malignant tumors.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with malignant tumors (pathologically confirmed or diagnosed with a clear clinical course) whose primary or metastatic tumors cause stenosis of the ureter and impaired urinary transit. Any type of malignancy, stage, age, and gender are acceptable.

Exclusion criteria

Exclusion criteria: Patients with ureteral obstruction other than malignancy

Design outcomes

Primary

Measure	Time frame
The relationship between each risk factor and ureteral stent patency is examined.	—

Secondary

Measure	Time frame
Survival rates for each risk group are examined.	—

Countries

Japan

Contacts

Public ContactTaiki Kamijima

Kanazawa University Graduate School of Medical Science 13-1 Takaramachi, Kanazawa, Ishikawa 920-8641, Japan

kamiji0029@yahoo.co.jp076-265-2393

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026