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Minimally invasive versus open distal pancreatectomy for pancreatic ductal adenocarcinoma (DIPLOMA): study protocol for a randomized controlled trial
Trials ( IF 2.5 ) Pub Date : 2021-09-09 , DOI: 10.1186/s13063-021-05506-z
Jony van Hilst 1 , Maarten Korrel 1 , Sanne Lof 1, 2 , Thijs de Rooij 1 , Frederique Vissers 1 , Bilal Al-Sarireh 3 , Adnan Alseidi 4 , Adrian C Bateman 5 , Bergthor Björnsson 6 , Ugo Boggi 7 , Svein Olav Bratlie 8 , Olivier Busch 1 , Giovanni Butturini 9 , Riccardo Casadei 10 , Frederike Dijk 11 , Safi Dokmak 12 , Bjorn Edwin 13 , Casper van Eijck 14 , Alessandro Esposito 15 , Jean-Michel Fabre 16 , Massimo Falconi 17 , Giovanni Ferrari 18 , David Fuks 19 , Bas Groot Koerkamp 14 , Thilo Hackert 20 , Tobias Keck 21 , Igor Khatkov 22 , Ruben de Kleine 23 , Arto Kokkola 24 , David A Kooby 25 , Daan Lips 26 , Misha Luyer 27 , Ravi Marudanayagam 28 , Krishna Menon 29 , Quintus Molenaar 30 , Matteo de Pastena 15 , Andrea Pietrabissa 31 , Rushda Rajak 4 , Edoardo Rosso 2 , Patricia Sanchez Velazquez 32 , Olivier Saint Marc 33 , Mihir Shah 25 , Zahir Soonawalla 34 , Ales Tomazic 35 , Caroline Verbeke 36 , Joanne Verheij 11 , Steven White 37 , Hanneke W Wilmink 38 , Alessandro Zerbi 39 , Marcel G Dijkgraaf 40 , Marc G Besselink 1 , Mohammad Abu Hilal 2, 41 ,
Affiliation  

Recently, the first randomized trials comparing minimally invasive distal pancreatectomy (MIDP) with open distal pancreatectomy (ODP) for non-malignant and malignant disease showed a 2-day reduction in time to functional recovery after MIDP. However, for pancreatic ductal adenocarcinoma (PDAC), concerns have been raised regarding the oncologic safety (i.e., radical resection, lymph node retrieval, and survival) of MIDP, as compared to ODP. Therefore, a randomized controlled trial comparing MIDP and ODP in PDAC regarding oncological safety is warranted. We hypothesize that the microscopically radical resection (R0) rate is non-inferior for MIDP, as compared to ODP. DIPLOMA is an international randomized controlled, patient- and pathologist-blinded, non-inferiority trial performed in 38 pancreatic centers in Europe and the USA. A total of 258 patients with an indication for elective distal pancreatectomy with splenectomy because of proven or highly suspected PDAC of the pancreatic body or tail will be randomly allocated to MIDP (laparoscopic or robot-assisted) or ODP in a 1:1 ratio. The primary outcome is the microscopically radical resection margin (R0, distance tumor to pancreatic transection and posterior margin ≥ 1 mm), which is assessed using a standardized histopathology assessment protocol. The sample size is calculated with the following assumptions: 5% one-sided significance level (α), 80% power (1-β), expected R0 rate in the open group of 58%, expected R0 resection rate in the minimally invasive group of 67%, and a non-inferiority margin of 7%. Secondary outcomes include time to functional recovery, operative outcomes (e.g., blood loss, operative time, and conversion to open surgery), other histopathology findings (e.g., lymph node retrieval, perineural- and lymphovascular invasion), postoperative outcomes (e.g., clinically relevant complications, hospital stay, and administration of adjuvant treatment), time and site of disease recurrence, survival, quality of life, and costs. Follow-up will be performed at the outpatient clinic after 6, 12, 18, 24, and 36 months postoperatively. The DIPLOMA trial is designed to investigate the non-inferiority of MIDP versus ODP regarding the microscopically radical resection rate of PDAC in an international setting. ISRCTN registry ISRCTN44897265 . Prospectively registered on 16 April 2018.

中文翻译:

微创与开放式远端胰腺切除术治疗胰腺导管腺癌 (DIPLOMA):一项随机对照试验的研究方案

最近,第一项比较微创远端胰腺切除术 (MIDP) 与开放式远端胰腺切除术 (ODP) 治疗非恶性和恶性疾病的随机试验显示 MIDP 后功能恢复的时间缩短了 2 天。然而,对于胰腺导管腺癌 (PDAC),与 ODP 相比,MIDP 的肿瘤学安全性(即根治性切除、淋巴结修复和存活率)受到了关注。因此,有必要在 PDAC 中比较 MIDP 和 ODP 的肿瘤安全性随机对照试验。我们假设与 ODP 相比,显微镜下根治性切除 (R0) 率不劣于 MIDP。DIPLOMA 是一项国际随机对照、患者和病理学家盲法、非劣效性试验,在欧洲和美国的 38 个胰腺中心进行。共有 258 名因经证实或高度怀疑胰腺体或尾部 PDAC 具有择期远端胰腺切除术和脾切除术指征的患者将按 1:1 的比例随机分配至 MIDP(腹腔镜或机器人辅助)或 ODP。主要结果是显微镜下根治性切除边缘(R0,肿瘤到胰腺横断面的距离和后边缘 ≥ 1 mm),这是使用标准化组织病理学评估方案进行评估的。样本量的计算基于以下假设:5% 的单侧显着性水平 (α),80% 的功效 (1-β),开放组的预期 R0 率为 58%,微创组的预期 R0 切除率为 67%,非劣效性为 7%。次要结果包括功能恢复时间、手术结果(例如失血量、手术时间、和转换为开放手术)、其他组织病理学发现(例如,淋巴结取出、神经周围和淋巴血管侵犯)、术后结果(例如,临床相关并发症、住院时间和辅助治疗的实施)、疾病复发的时间和部位,生存、生活质量和成本。术后 6、12、18、24 和 36 个月后将在门诊进行随访。DIPLOMA 试验旨在研究 MIDP 与 ODP 在国际环境中 PDAC 的显微根治性切除率方面的非劣效性。ISRCTN 注册表 ISRCTN44897265。预计于 2018 年 4 月 16 日注册。临床相关并发症、住院时间和辅助治疗的管理)、疾病复发的时间和部位、存活率、生活质量和费用。术后 6、12、18、24 和 36 个月后将在门诊进行随访。DIPLOMA 试验旨在研究 MIDP 与 ODP 在国际环境中 PDAC 的显微根治性切除率方面的非劣效性。ISRCTN 注册表 ISRCTN44897265。预计于 2018 年 4 月 16 日注册。临床相关并发症、住院时间和辅助治疗的管理)、疾病复发的时间和部位、存活率、生活质量和费用。术后 6、12、18、24 和 36 个月后将在门诊进行随访。DIPLOMA 试验旨在研究 MIDP 与 ODP 在国际环境中 PDAC 的显微根治性切除率方面的非劣效性。ISRCTN 注册表 ISRCTN44897265。预计于 2018 年 4 月 16 日注册。DIPLOMA 试验旨在研究 MIDP 与 ODP 在国际环境中 PDAC 的显微根治性切除率方面的非劣效性。ISRCTN 注册表 ISRCTN44897265。预计于 2018 年 4 月 16 日注册。DIPLOMA 试验旨在研究 MIDP 与 ODP 在国际环境中 PDAC 的显微根治性切除率方面的非劣效性。ISRCTN 注册表 ISRCTN44897265。预计于 2018 年 4 月 16 日注册。
更新日期:2021-09-09
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