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Surgery or targeted radiotherapy after chemotherapy for locally advanced pancreatic cancer

Surgery versus stereotactic ablative radiotherapy for patients with locally advanced pancreatic cancer with favourable biological response following induction chemotherapy (PREOPANC-4) - Surgery versus stereotactic ablative radiotherapy in locally advanced pancreatic cancer after chemotherapy (PREOPANC-4): Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON61336
Enrollment
110
Registered
2025-09-27
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-07-13

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

Conditions

Locally advanced pancreatic ductal adenocarcinoma Locally advanced pancreatic cancer

Interventions

The study compares two established local treatment strategies:Surgical exploration with intent to resection, performed in high-volume expert centers according to standardized surgical protocols, follo

Sponsors

Amsterdam UMC
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Adults aged =18 years.Histologically or cytologically confirmed pancreatic ductal adenocarcinoma (PDAC), or strong clinical and radiological suspicion in case histological confirmation could not be obtained despite adequate attempts.Locally advanced pancreatic cancer (LAPC) according to the 2025 NCCN criteria.At least three months of systemic induction chemotherapy completed.Non-progressive disease on cross-sectional imaging after induction chemotherapy (RECIST).Favourable biological response after induction chemotherapy, defined as a =40% reduction in serum CA19-9 with an absolute value <500 U/mL, or alternative predefined metabolic criteria in case of non-elevated CA19-9.WHO/ECOG performance status 0–1 at restaging.Considered technically eligible for both surgical exploration and MRI-guided SABR according to the local multidisciplinary team.Absence of distant metastases confirmed before randomisation.Written informed consent provided.

Exclusion criteria

Exclusion criteria: Progressive disease during induction chemotherapy.Prior radiotherapy to the pancreas, except a single palliative fraction (8 Gy) for tumour-related bleeding.Clinical deterioration or increase in tumour-related pain during induction chemotherapy not attributable to other causes.Presence of distant metastases at restaging or during staging laparoscopy.Direct tumour invasion of gastrointestinal hollow organs other than the duodenum.History of another malignancy within the past three years, except adequately treated non-melanoma skin cancer or other malignancies with an expected life expectancy >5 years.Severe comorbidity or medical condition precluding surgery or radiotherapy.Inability to provide informed consent.

Design outcomes

Primary

MeasureTime frame
The primary outcome measure is overall survival, defined as the time from randomization to death from any cause or last follow-up.

Secondary

MeasureTime frame
Secondary outcome measures include:Failure-free survival, defined as the absence of local or regional progression, distant metastases, second pancreatic cancer, or deathGlobal quality of life, functioning, symptom scores, and summary score assessed using the EORTC QLQ-C30 and PAN26 questionnaires during the first two years after randomizationSerious adverse events occurring within six months after randomizationIn-hospital and 90-day major morbidityClinically relevant pancreatic surgery–specific complicationsR0 resection rate in patients undergoing surgical resection

Countries

China, Denmark, France, Germany, Italy, Netherlands

Contacts

Public ContactM G H Besselink

Amsterdam UMC

m.g.besselink@amsterdamumc.nl0683530226

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jul 23, 2026