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The clinical pathological significance in cases of pancreatic cancer that achieved pathological complete response after preoperative therapy: the retrospective study

The clinical pathological significance in cases of pancreatic cancer that achieved pathological complete response after preoperative therapy: the retrospective study - The retrospective study of pancreatic cancer cases that achieved pathological complete response with preoperative therapy.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000054904
Enrollment
500
Registered
2024-08-01
Start date
2024-08-01
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

pancreatic cancer

Interventions

None listed

Sponsors

Kyoto University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) A pathological diagnosis of pancreatic cancer (invasive ductal carcinoma of the pancreas) has been obtained before the start of treatment. 2) Preoperative chemotherapy or chemoradiotherapy has been administered. The regimen and duration of administration are not specified. 3) Curative resection has been performed, and no residual cancer is observed in the resected specimen upon pathological examination (pathological complete response, pCR: Histological Effect Judgment Grade 4 according to the General Rules for the Study of Pancreatic Cancer / Evans classification Grade IV / CAP score 0). However, residual PanIN (including high-grade PanIN [so-called carcinoma in situ]) is included in pCR (considered eligible). 4) At the time of diagnosis, the resectability classification is R, BR-PV, BR-A, or UR-LA (according to the 8th edition of the General Rules for the Study of Pancreatic Cancer).

Exclusion criteria

Exclusion criteria: 1) Cases in which distant metastasis was observed before the start of treatment or during preoperative therapy. 2) Cases in which distant metastasis (liver metastasis, peritoneal dissemination, positive peritoneal lavage cytology) was observed during intraoperative findings. 3) Cases in which residual cancer was present at the time of surgery (R2 resection). 4) Cases where the patient died due to postoperative complications.

Design outcomes

Primary

MeasureTime frame
Overall survival

Secondary

MeasureTime frame
Relapse free survival

Countries

Japan

Contacts

Public ContactKei Yamane

Graduate School of Medicine and Faculty of Medicine Kyoto University Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery

ykspirit@kuhp.kyoto-u.ac.jp0757514323

Outcome results

None listed

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