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Chemoradiation therapy on conversion surgery for unresectable locally advanced pancreatic cancer

The survival benefit of chemoradiation (Gem/nab-PTX+RT) followed by conversion surgery in patients with unresectable locally advanced pancreatic cancer: multicenter randomized phase II trial

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs051210167
Enrollment
70
Registered
2022-02-03
Start date
2022-02-03
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 ductal adenocarcinoma Unresectable locally advenced pancreatic cancer, Prospective randomized control study, Chemoradiotherapy, Conversion surgery

Interventions

Group suegery surgery Group Post-chemotherapy surgery GEM
800mg/m2,intravenous infusion on Day1,Da y8,Day15,Day29 nab-PTX
100mg,intravenous infusion on Day1,Da y8,Day15,Day29 RT
2.0 Gy/day,from Monday to Friday every week, total 50.0 Gy surgery

Sponsors

Akita Hirofumi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria (1) Histological or cytological evidence of pancreatic ductal carcinoma (2) Age>=20 (3) PS:0-1(ECOG grade) (4) Patients with unresectable locally advanced pancreatic ductal carcinoma at the first visit, which are diagnosed as being able to undergo conversion surgery after Gemcitabine+nab-paclitaxel therapy The criteria of unresectable locally advanced cancer 1)Solid tumor contact with the SMA or CA > 180deg 2)Solid tumor contact with the CA and aortic involvement 3)Unreconstructible SMV/PV due to tumor involvement or occlusion The criteria of conversion surgery 1) The serum tumor marker (CEA, CA19-9) is within normal range 2) Imagings of computed tomography (less than 5mm slice) meet the following criteria i) no metastasis ii) No tumor contact with the SMV or PV. Solid tumor contact with the SMV or PV with suitable vessel proximal and distal to the site of involvement allowing for safe and complete resection and vein reconstruction iii) In pancreatic head/uncinate, no arterial tumor contact (CA, SMA, CHA). Solid tumor contact with CHA without extension to CA or hepatic artery bifurcation allowing for safe and complete resection and reconstruction. Solid tumor contact with the SMA of 180deg without the involvement of aorta and with intact and uninvolved Even if the above criteria are not met, conversion surgery is possible when there is no abnormal accumulation of FDG at PET-CT, or at biopsy there are not malignant findings, conversion surgery was possible. (5) Patients with the normal function of principle organs (bone marrow, liver, kidney, lung, etc) Leukocyte >=3,500/mm3 Neutrocyte >=2,000/mm3 Platelet >=100,000/mm3 Hemogrobin >=9.0g/dl Total bilirbin =60ml/min (according to Cockroft-Gault calculating formula) (6) Acquisition of written informed consent

Exclusion criteria

Exclusion criteria: Exclusion criteria (1) Unresectable pancreatic ductal carcinoma with the following imaging criteria 1)no distant metastasis 2)no peritoneal dissemination, positive cytology 3)no para-aortic lymph node metastasis (2) Patients with tumor involvement in organs that are difficult to treat with radiation (3) Patients with anamnesis of pulmonary fibrosis or emphysema, or patients with severe respiratory d disability (for example,%VC<=50% or FW|EV1.0<1L) (4) Patients with active infection except for viral hepatitis (5) Patients with severe general complications, for example, cardiac failure, renal failure, hepatic failure, uncontrolled diabetes, etc. (6) Patients with a moderate amount of ascites or pleural effusion (7)Patients with active double cancer (synchronous or metachronous with a disease-free period of 3 years or less) (8) Patients in pregnancy, patients in possible pregnancy, patients which wish to be in pregnancy, patients with breastfeeding, a male which wishes that his partner is to be in pregnancy (9) Patients with severe mental disability (10) Patients with severe drug-induced hypersensitivity syndrome (11) Patients who are judged inappropriate for entry into this study by the investigators

Design outcomes

Primary

MeasureTime frame
Overall survival (OS)

Secondary

MeasureTime frame
Progression-free survival (PFS), The rate of R0 resection, The rate of perioperative complications, The effect of chemoradiotherapy, The site of recurrence, safety

Contacts

Public ContactYoshito Tomimaru

The University of Osaka Hospital

ytomimaru@gesurg.med.osaka-u.ac.jp+81-6-6879-3251

Outcome results

None listed

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