- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07592663
Oncologic Safety and Lymphadenectomy in Parenchyma-Sparing Resection for SPN (PSR for SPN)
Parenchyma-Sparing Resection for Pancreatic Solid Pseudopapillary Neoplasm: Oncologic Safety and Role of Lymphadenectomy in a Prospective Cohort Study
Studieoversigt
Status
Intervention / Behandling
Detaljeret beskrivelse
Solid pseudopapillary neoplasm (SPN) is a rare pancreatic tumor, accounting for approximately 1-3% of all pancreatic neoplasms, and predominantly affects young women . Although historically classified as a borderline lesion, SPN is currently regarded as a low-grade malignant neoplasm with an excellent long-term prognosis, with complete surgical resection achieving cure in 85-95% of patients. Even in the presence of recurrence or limited distant metastasis, aggressive surgical management can still result in prolonged survival. Given this indolent biological behavior and long life expectancy, the primary surgical challenge in SPN has gradually shifted from achieving oncologic radicality alone to balancing oncologic safety with long-term functional preservation.
Parenchyma-sparing resection (PSR) has therefore gained increasing attention in the management of SPN. By preserving pancreatic parenchyma and avoiding complex gastrointestinal reconstruction, PSR has the potential to reduce surgical trauma and preserve long-term endocrine and exocrine function. However, concerns persist regarding its oncologic adequacy, particularly the risk of positive resection margins, limited lymph node assessment, and postoperative morbidity. Current evidence supporting PSR in SPN remains largely derived from small retrospective series, and robust data addressing long-term oncologic outcomes and functional consequences are lacking.
Owing to the rarity and low malignant potential of SPN, prospective randomized trials comparing PSR with conventional oncologic resection (OR) are unlikely to be feasible. Consequently, optimal surgical strategy for SPN remains controversial. Using a large, prospectively maintained database, this study aimed to compare PSR and OR with respect to long-term oncologic outcomes, perioperative safety, and postoperative functional preservation. In addition, given the extremely low incidence of lymph node metastasis in SPN, we sought to further evaluate the necessity of routine lymph node dissection from a long-term outcome perspective.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Shanghai Municipality
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Shanghai, Shanghai Municipality, Kina
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- age between 18 and 75 years, regardless of gender;
- patients with solid pseudopapillary neoplasm of the pancreas;
- patients with an ECOG performance status of 0 or 1;
- successfully received sugary (open or laparoscopic or robotic)
Exclusion Criteria:
(1) Pediatric patients with SPN under 14 years of age, or elderly patients over 80 years of age; (2) Reoperative resection for recurrent or metastatic SPN; (3) presence of distant metastasis or concomitant malignant tumors before surgery; and (4) loss to follow-up within 90 days after surgery.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
|---|---|
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PSR group
Patients with solid pseudopapillary neoplasm who underwent parenchyma-sparing resection (PSR).
PSR included enucleation (EN), duodenum-preserving pancreatic head resection (DPPHR), central pancreatectomy (CP), and spleen-preserving distal pancreatectomy (SPDP).
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PSR included enucleation (EN), duodenum-preserving pancreatic head resection (DPPHR), central pancreatectomy (CP), and spleen-preserving distal pancreatectomy (SPDP).
OR included pancreatoduodenectomy (PD), distal pancreatectomy with splenectomy (DPS), and total pancreatectomy (TP).
Andre navne:
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OR group
Patients with solid pseudopapillary neoplasm who underwent oncologic resection (OR).
OR included pancreatoduodenectomy (PD), distal pancreatectomy with splenectomy (DPS), and total pancreatectomy (TP).
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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R0 resektionsrate
Tidsramme: Fra operationsdatoen til 1 måned efter operationen.
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R0 marginrate ved postoperativ patologisk vurdering.
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Fra operationsdatoen til 1 måned efter operationen.
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Gentagelsesfri overlevelse (RFS)
Tidsramme: Gennem studieafslutning i gennemsnit 3 år.
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Tidspunktet for operationen til tidspunktet for tumorgentagelse eller død.
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Gennem studieafslutning i gennemsnit 3 år.
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Reoperationshastighed
Tidsramme: Inden for 90 dage efter operationen.
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Genoperationshastighed inden for 90 dage efter operationen.
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Inden for 90 dage efter operationen.
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Rate af pancreas enzym-afhængig malabsorption
Tidsramme: Gennem studieafslutning i gennemsnit 3 år.
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Postoperativ pancreasenzymafhængig malabsorptionshastighed.
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Gennem studieafslutning i gennemsnit 3 år.
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Hyppighed af nyopstået diabetes
Tidsramme: Gennem studieafslutning i gennemsnit 3 år.
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Postoperativ nyopstået diabetesrate.
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Gennem studieafslutning i gennemsnit 3 år.
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Forekomst af klinisk relevant postoperativ pancreasfistel
Tidsramme: Inden for 90 dage efter operationen.
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Klinisk relevant bugspytkirtelfistel inklusive grad B fistler, som kræver behandling ud over simpel dræning, samt grad C fistler.
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Inden for 90 dage efter operationen.
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Perioperativ komplikationsrate i henhold til Clavien-Dindo klassifikationen
Tidsramme: Inden for 90 dage efter operationen.
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Bivirkninger, der opstår under eller efter operationen, rapporteret i henhold til Clavien-Dindo-klassifikationen.
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Inden for 90 dage efter operationen.
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Rate for postoperativ pancreatisk blødning (PPH).
Tidsramme: Inden for 90 dage efter operationen.
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Hyppigheden af postoperativ pancreatisk blødning (PPH) inden for 90 dage efter operationen, rapporteret i henhold til ISGPS-definitionen.
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Inden for 90 dage efter operationen.
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Rate for forsinket gastrisk tømning (DGE).
Tidsramme: Inden for 90 dage efter operationen.
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Rate for forsinket gastrisk tømning (DGE) inden for 90 dage efter operationen, rapporteret i henhold til ISGPS-definitionen.
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Inden for 90 dage efter operationen.
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Ledende efterforsker: Xianjun Yu, MD, PhD, Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center Shanghai, Shanghai, China
- Studieleder: Xiaowu Xu, MD, PhD, Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center Shanghai, Shanghai, China
- Studiestol: Zheng Li, MD, Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center Shanghai, Shanghai, China
Publikationer og nyttige links
Generelle publikationer
- Bolm L, Nebbia M, Wei AC, Zureikat AH, Fernandez-Del Castillo C, Zheng J, Pulvirenti A, Javed AA, Sekigami Y, Petruch N, Qadan M, Lillemoe KD, He J, Ferrone CR; PAncreatic Neuroendocrine Disease Alliance (PANDA). Long-term Outcomes of Parenchyma-sparing and Oncologic Resections in Patients With Nonfunctional Pancreatic Neuroendocrine Tumors <3 cm in a Large Multicenter Cohort. Ann Surg. 2022 Sep 1;276(3):522-531. doi: 10.1097/SLA.0000000000005559. Epub 2022 Jun 27.
- Liu Q, Dai M, Guo J, Wu H, Wang W, Chen G, Hu Y, Han X, Xu Q, Zhang X, Yang S, Zhang Y, Kleeff J, Liao Q, Wu W, Liang Z, Zhang T, Zhao Y. Long-term Survival, Quality of Life, and Molecular Features of the Patients With Solid Pseudopapillary Neoplasm of the Pancreas: A Retrospective Study of 454 Cases. Ann Surg. 2023 Dec 1;278(6):1009-1017. doi: 10.1097/SLA.0000000000005842. Epub 2023 Apr 10.
- Bersot TP, Vega GL, Grundy SM, Palaoglu KE, Atagunduz P, Ozbayrakci S, Gokdemir O, Mahley RW. Elevated hepatic lipase activity and low levels of high density lipoprotein in a normotriglyceridemic, nonobese Turkish population. J Lipid Res. 1999 Mar;40(3):432-8.
- Li J, Zheng H, Zhang X, Pan B, Lu J, Zhou L, Zhang T, Dai M, Guo J, Wang W, Han X, Xu Q, Hua Y, Kleeff J, Wu H, Liang Z, Liu Q, Liao Q. Molecular profiling reveals the malignant potential in solid pseudopapillary neoplasms of the pancreas. Cancer Lett. 2025 Aug 10;625:217788. doi: 10.1016/j.canlet.2025.217788. Epub 2025 May 15.
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- CSPAC-SPN-1
Plan for individuelle deltagerdata (IPD)
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