Endoscopic Papillectomy Versus Surgery for Ampullary Tumors: A Prospective Multicenter Cohort Study
Investigation of the Indications and Clinical Outcomes of Endoscopic Papillectomy Versus Surgery for Ampullary Tumors
The aim of this study is to compare the efficacy and safety of endoscopic treatment (endoscopic papillectomy [EP] with or without intraductal radiofrequency ablation [RFA]) and surgical treatment (transduodenal ampullectomy [TSA] and pancreatoduodenectomy [PD]) in patients with ampullary tumors (ampullary adenoma and early ampullary carcinoma), focusing on residual disease, recurrence, postoperative complications, and overall costs.
A tanulmány áttekintése
Állapot
Körülmények
Beavatkozás / kezelés
Részletes leírás
This is a multicenter, two-arm, prospective cohort study. The diagnosis of ampullary adenoma must be confirmed by biopsy.
The endoscopic treatment group receives EP; patients without intraductal extension receive EP alone, while patients with intraductal extension receive additional RFA in the same or a subsequent session. The surgical treatment group receives TSA or PD. Patients are followed up at 3, 6, and 12 months after the initial treatment, then annually for at least 5 years, with side-viewing duodenoscopy, targeted biopsy, and CT assessment. To control confounding between the two groups, propensity score matching and inverse probability of treatment weighting will be applied.
Tanulmány típusa
Beiratkozás (Becsült)
Kapcsolatok és helyek
Tanulmányi kapcsolat
- Név: Zhen Li, MD
- Telefonszám: 18560086106
- E-mail: qilulizhen@sdu.edu.cn
Tanulmányozza a kapcsolattartók biztonsági mentését
- Név: Ning Zhong, MD
- Telefonszám: 18560086096
- E-mail: zhongning@email.sdu.edu.cn
Tanulmányi helyek
-
-
Shandong
-
Jinan, Shandong, Kína, 250012
- Qilu Hospital of Shandong University
-
Kapcsolatba lépni:
- Zhen Li
- Telefonszám: 18560086106
- E-mail: qilulizhen@sdu.edu.cn
-
-
Részvételi kritériumok
Jogosultsági kritériumok
Tanulmányozható életkorok
Egészséges önkénteseket fogad
Tanulmányozható nemek
Mintavételi módszer
Tanulmányi populáció
Adult patients with histologically confirmed ampullary adenoma or early ampullary carcinoma (Tis/T1) without invasion into the duodenal muscularis propria, staged M0/N0 by EUS , MRCP and CT , with intraductal tumor extension ≤ 20 mm on EUS, MRCP, or IDUS, undergoing endoscopic papillectomy or surgery.
Leírás
Inclusion Criteria:
- Patients aged ≥18 years
- Patients with histologically confirmed ampullary adenoma or early ampullary carcinoma (Tis/T1) based on endoscopic biopsy (i.e., without tumor invasion into the duodenal muscularis propria).
- Preoperative staging by endoscopic ultrasound (EUS) , magnetic resonance cholangiopancreatography (MRCP) or computed tomography (CT) showing no distant metastasis (M0) and no lymph node metastasis (N0).
- Intraductal tumor extension (ITE) ≤ 20 mm assessed by EUS, MRCP or Intraductal ultrasound (IDUS ).
- Planned to undergo EP, with or without intraductal RFA, or surgical treatment (TSA or PD).
- Patients who provide written informed consent.
Exclusion Criteria:
- Patients unable to tolerate general anesthesia or surgery.
- Ectopic duodenal papilla.
- Contraindications to endoscopic procedures (e.g., severe esophageal stenosis, gastric outlet obstruction, or other conditions precluding endoscopic access to the papilla).
- Major upper abdominal surgery or previous biliary surgery history.
- Uncorrectable coagulopathy (INR > 1.5) or thrombocytopenia (platelet count < 50,000/μL), or inability to withhold antithrombotic (anticoagulant or antiplatelet) therapy for the planned endoscopic or surgical procedure..
- Pregnant or lactating women.
Tanulási terv
Hogyan készül a tanulmány?
Tervezési részletek
- Megfigyelési modellek: COHORT
- Időperspektívák: PROSPECTIVE
Kohorszok és beavatkozások
Csoport / Kohorsz |
Beavatkozás / kezelés |
|---|---|
|
Endoscopic treatment group
Patients undergoing EP with or without RFA. |
Endoscopic papillectomy (EP); EP combined with intraductal RFA for lesions with intraductal tumor extension. |
|
Surgical treatment group
Patients undergoing surgical treatment. |
TSA or PD |
Mit mér a tanulmány?
Elsődleges eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
|
Recurrence rate at 12 months
Időkeret: At 12 months after the initial treatment
|
Recurrence confirmed by endoscopic biopsy after an interval ≥ 3 months from the end of treatment, assessed at the 12-month follow-up. |
At 12 months after the initial treatment
|
Másodlagos eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
|
R0 resection rate
Időkeret: Periprocedural
|
Proportion of patients with complete resection achieved at the first endoscopic or surgical intervention and confirmed by histology (negative margins). |
Periprocedural
|
|
Procedure-related adverse event rate
Időkeret: Up to 90 days after the initial treatment
|
Proportion of patients who experienced at least one adverse event attributable to the initial endoscopic or surgical procedure within 30 days after the procedure, irrespective of severity. |
Up to 90 days after the initial treatment
|
|
Recurrence rate at 6 months
Időkeret: At 6 months after the initial treatment
|
Recurrence confirmed by endoscopic biopsy after an interval ≥ 3 months from the end of treatment, assessed at the 6-month follow-up. |
At 6 months after the initial treatment
|
|
Residual lesion rate
Időkeret: Up to 3 months after the initial treatment
|
Presence of residual adenoma tissue at the next endoscopy after treatment. |
Up to 3 months after the initial treatment
|
|
Clinical success rate
Időkeret: Up to 5 years after the initial treatment
|
Proportion of patients who achieved complete excision of the lesion (regardless of the number of procedures) with no histologically confirmed adenoma regrowth, no evidence of invasive cancer, and without the need for surgical resection, during follow-up up to 5 years after the initial treatment. |
Up to 5 years after the initial treatment
|
|
Endoscopic treatment failure rate
Időkeret: Up to 12 months after the initial treatment
|
Inability to completely resect the lesion endoscopically (regardless of the number of procedures), histopathologically invasive malignancy, or recurrence no longer amenable to endoscopic treatment. |
Up to 12 months after the initial treatment
|
|
Total number of readmissions within 12 months
Időkeret: Up to 12 months after the initial treatment
|
All readmissions due to disease-related symptoms (e.g., cholangitis, pancreatitis, obstructive jaundice) or treatment-related events (e.g., bleeding, perforation, anastomotic problems). |
Up to 12 months after the initial treatment
|
|
Technical success rate
Időkeret: Periprocedural
|
Proportion of patients in whom the planned procedure was completed as intended. |
Periprocedural
|
|
Total treatment cost
Időkeret: Up to 12 months after the initial treatment
|
All direct medical costs from admission to 12 months after the initial treatment (including procedure, anesthesia, hospitalization, medication, examinations, and readmission costs). |
Up to 12 months after the initial treatment
|
|
Index hospitalization length of stay
Időkeret: Periprocedural
|
Number of calendar days from the date of admission for the initial treatment to the date of discharge for the initial treatment,including the day of admission |
Periprocedural
|
|
Total length of stay within 12 months
Időkeret: Up to 12 months after the initial treatment
|
Total number of calendar days spent in hospital within 12 months after the initial treatment, including the index hospitalization and all readmissions due to disease-related symptoms or treatment-related events. |
Up to 12 months after the initial treatment
|
|
Postprocedural pancreatitis rate
Időkeret: Up to 90 days after the initial treatment
|
Defined by two of three criteria: characteristic abdominal pain; amylase or lipase > 3× upper limit of normal; imaging features of pancreatitis; severity graded mild / moderate / severe per protocol. |
Up to 90 days after the initial treatment
|
|
Postprocedural bleeding rate
Időkeret: Up to 90 days after the initial treatment
|
Proportion of patients with clinically significant post-procedural bleeding within 30 days after the procedure, defined as any of the following after achieving primary haemostasis: overt bleeding symptoms (hematemesis, melena, hematochezia, or blood aspirated via nasogastric tube); haemodynamic instability attributable to bleeding; a decrease in haemoglobin greater than 2 g/dL; or direct endoscopic evidence of bleeding from the papillectomy site. |
Up to 90 days after the initial treatment
|
|
Postprocedural perforation rate
Időkeret: Up to 90 days after the initial treatment
|
Direct visualization of a transmural defect during endoscopy, or radiographic evidence of extraluminal free air on abdominal CT or plain radiograph. |
Up to 90 days after the initial treatment
|
|
Postprocedural cholangitis rate
Időkeret: Up to 90 days after the initial treatment
|
New onset temperature >38 °C for more than 24 hours combined with cholestasis. Severity will be graded separately according to the TG18 severity classification (Grade I / II / III) and reported descriptively. |
Up to 90 days after the initial treatment
|
|
Cumulative recurrence rate
Időkeret: Through study completion, an average of 5 years
|
Cumulative recurrence during annual follow-up up to 5 years |
Through study completion, an average of 5 years
|
Együttműködők és nyomozók
Szponzor
Együttműködők
Nyomozók
- Kutatásvezető: Zhen Li, MD, Qilu Hospital of Shandong University
Publikációk és hasznos linkek
Általános kiadványok
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- Kiriyama S, Kozaka K, Takada T, Strasberg SM, Pitt HA, Gabata T, Hata J, Liau KH, Miura F, Horiguchi A, Liu KH, Su CH, Wada K, Jagannath P, Itoi T, Gouma DJ, Mori Y, Mukai S, Gimenez ME, Huang WS, Kim MH, Okamoto K, Belli G, Dervenis C, Chan ACW, Lau WY, Endo I, Gomi H, Yoshida M, Mayumi T, Baron TH, de Santibanes E, Teoh AYB, Hwang TL, Ker CG, Chen MF, Han HS, Yoon YS, Choi IS, Yoon DS, Higuchi R, Kitano S, Inomata M, Deziel DJ, Jonas E, Hirata K, Sumiyama Y, Inui K, Yamamoto M. Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholangitis (with videos). J Hepatobiliary Pancreat Sci. 2018 Jan;25(1):17-30. doi: 10.1002/jhbp.512. Epub 2018 Jan 5.
- Abraham NS, Barkun AN, Sauer BG, Douketis J, Laine L, Noseworthy PA, Telford JJ, Leontiadis GI. American College of Gastroenterology-Canadian Association of Gastroenterology Clinical Practice Guideline: Management of Anticoagulants and Antiplatelets During Acute Gastrointestinal Bleeding and the Periendoscopic Period. Am J Gastroenterol. 2022 Apr 1;117(4):542-558. doi: 10.14309/ajg.0000000000001627.
- Karam E, Hollenbach M, Ali EA, Auriemma F, Gulla A, Heise C, Regner S, Gaujoux S; on the Pancreas 2000 Research Group; Regimbeau JM, Kahler G, Seyfried S, Vaillant JC, De Ponthaud C, Sauvanet A, Birnbaum D, Regenet N, Truant S, Perez-Cuadrado-Robles E, Bruzzi M, Lupinacci RM, Brunel M, Belfiori G, Barbier L, Salame E, Souche FR, Schwarz L, Maggino L, Salvia R, Gagniere J, Del Chiaro M, Leung G, Hackert T, Kleemann T, Paik WH, Caca K, Dugic A, Muehldorfer S, Schumacher B, Albers D. Outcomes of rescue procedures in the management of locally recurrent ampullary tumors: A Pancreas 2000/EPC study. Surgery. 2023 May;173(5):1254-1262. doi: 10.1016/j.surg.2022.12.011. Epub 2023 Jan 13.
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Tanulmányi rekorddátumok
Tanulmány főbb dátumok
Tanulmány kezdete (Becsült)
Elsődleges befejezés (Becsült)
A tanulmány befejezése (Becsült)
Tanulmányi regisztráció dátumai
Először benyújtva
Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak
Első közzététel (Tényleges)
Tanulmányi rekordok frissítései
Utolsó frissítés közzétéve (Tényleges)
Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak
Utolsó ellenőrzés
Több információ
A tanulmányhoz kapcsolódó kifejezések
Kulcsszavak
Egyéb vizsgálati azonosító számok
- 2026SDU-QILU-6
Terv az egyéni résztvevői adatokhoz (IPD)
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