A Multicenter retrospective study to investigate the clinical significance of "suspicious for malignancy" on peritoneal washing cytology in resected pancreatic cancer

A Multicenter retrospective study to investigate the clinical significance of "suspicious for malignancy" on peritoneal washing cytology in resected pancreatic cancer - A Multicenter retrospective study to investigate the clinical significance of "suspicious for malignancy" on peritoneal washing cytology in resected pancreatic cancer

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000046824

Enrollment

400

Registered

2022-02-10

Start date

2022-02-10

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 diagnosed with resectable (R) or borderline resectable (BR) pancreatic cancer according to the General Rules for the Study of Pancreatic Cancer 7th edition written by Japan Pancreas Society, who performed upfront surgery, and diagnosed as suspicious or Class III (difficult to differentiate), Class IV (suspicious of malignancy), or Class V (positive/malignant) by peritoneal washing cytology on laparotomy.

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with resected pancreatic cancer diagnosed as suspicious-positive, Class III and Class IV (suspicious for malignancy) by peritoneal washing cytology

Exclusion criteria

Exclusion criteria: Patients who underwent neoadjuvant treatment Patients who have not undergone peritoneal washing cytology Patients with negative, Class I or II results on peritoneal washing cytology

Design outcomes

Primary

Measure	Time frame
overall survival	—

Secondary

Measure	Time frame
Progression-free survival, presence of recurrence, first recurrence form	—

Countries

Japan

Contacts

Public ContactKazuto Shibuya

Faculty of Medicine, Academic Assembly, University of Toyama Department of Surgery and Science

shibuyak@med.u-toyama.ac.jp076-434-7331

Outcome results