Gastric Cancer' Textbook Oncological Outcome and Tumor Board Performance

Official title

Gastric Cancer' Textbook Oncological Outcome and Tumor Board Performance - The Experience of a High-volume Italian University Hospital

Overview

The goal of this observational, no-profit, spontaneous, retrospective, monocentric study is to compare surgical and oncologic outcomes in patients affected by gastric cancer before and after the institution of the Tumor Board, a multidisciplinary weekly case discussion. The main question it aims to answer is whether the Textbook Outcome (TO) and Textbook Oncological Outcome (TOO) of patients with non-early, non-metastatic gastric cancer undergoing surgical treatment with curative intent have improved before (from January 2018 to November 2019) and after (from December 2019 onwards) the establishment of the Multidisciplinary Tumor Board (MTB) at Fondazione Policlinico Gemelli (FPG).

Detailed description

Background. Textbook Outcome (TO) is a composite parameter for quality in surgical oncology proposed by the Dutch Upper Gastrointestinal Cancer Audit (DUCA) group, directly related to survival \[1\]. A Polish group proposed an integration to the TO, adding the item perioperative chemotherapy administration compliance (POC), for a comprehensive assessment of multimodal treatment in gastric cancer (GaC) patients' management, named Textbook Oncological Outcome (TOO) \[2\]. This has been subsequently validated in the European GASTRODATA database \[3\], showing a correlation with lower 90-day mortality rates. The latter study acknowledges a TO of 68.5%, higher than previous experiences reported from the Western world, while reporting a TOO of only 22.8%, pointing out the need to improve multimodal treatment of GC patients.

To evaluate any influence of systematic Multidisciplinary Tumor Board (MTB) on patient outcomes, we aim to assess TO, TOO, Time from first diagnosis To first Therapy (TTT), the appropriateness of Patient to Treatment Allocation (PTA), and MTB hospital Adherence (TBA) as indicators of Tumor Board Performance (TBP) before and after its institution. At Policlinico Universitario Agostino Gemelli, the MTB for GaC was established in November 2019. We will collect data from 2018 to date in order to minimize bias due to different perioperative regimens.

Hypothesis. We hypothesize a global improvement in GaC patients' TO and TOO following the institution of the MTB.

Objectives. The study's primary objective is to evaluate the Textbook Outcome (TO) and Textbook Oncological Outcome (TOO) of patients with gastric cancer undergoing surgical treatment with curative intent before (from January 2018 to November 2019) and after (from December 2019 onwards) the establishment of the Multidisciplinary Tumor Board (MTB) at Fondazione Policlinico Gemelli (FPG) (primary endpoint: percentage of patients achieving TO and TOO out of the total number of patients who underwent surgery with curative intent for gastric cancer at FPG before and after the MTB institution). Secondary objectives include assessing Tumor Board Performance (TBP) by measuring: - Time from diagnosis To Treatment, the interval between diagnosis and beginning of the first oncological treatment (TTT; endpoint: delay in days/weeks from diagnosis to treatment before and after MTB institution), - Patient to Treatment Allocation (PTA; endpoint: percentage of upfront surgery candidates who do not receive adjuvant chemotherapy before and after MTB institution) and - Tumor Board Adherence (TBA; endpoint: percentage of patients operated on at FPG who were previously discussed at the MTB out of the total number of patients who underwent surgery with curative intent for gastric cancer at FPG).

Methods. We will review clinical, pathological, surgical and oncological data of patients affected by Gastric Cancer candidated for surgical intervention -either upfront, either post neoadjuvant treatment, either in conversion surgery- with curative intent for primary and secondary outcomes.

Expected results. This study aims to demonstrate an improvement in Gastric Cancer patients' outcomes, such as Textbook Outcome (TO) and Textbook Oncological Outcome (TOO), following the establishment of the MTB. Additionally, we anticipate enhanced Tumor Board Performance over time, thanks to the improvements of Time from Diagnosis to Treatment (TTT), Tumor Board Adherence (TBA), and Patient to Treatment Allocation (PTA), attributable to a learning effect.

Interventions

• Other Multidisciplinary Tumor Board
  Institution of Multidisciplinary Tumor Board for Gastric Cancer at Fondazione Policlinico Gemelli in november 2019

Primary outcome measures

• Textbook Outcome (TO) [Time frame: january 2018 - february 2024]
• Textbook Oncologic Outcome (TOO) [Time frame: january 2018 - february 2024]

Secondary outcome measures (3)

• Time To first Treatment (TTT) [Time frame: january 2018 - february 2024]
• Patient to Treatment Allocation (PTA) [Time frame: january 2018 - february 2024]
• Tumor Board Adherence (TBA) [Time frame: january 2018 - february 2024]

Eligibility criteria

Inclusion criteria

• pathology-confirmed diagnosis of gastric adenocarcinoma
• age 18 years or older
• surgical candidates with curative intent

Exclusion criteria

• Endoscopic Mucosal Resection (EMR) or Endoscopic Submucosal Dissection (ESD)
• previous EMR or ESD (salvage surgery)
• histologies other than adenocarcinoma (no squamous cell carcinomas, GISTs, sarcomas, lymphomas, etc)
• unsufficient staging (unclear clinical stage at diagnosis)
• emergency presentation (obstrucetd, significantly bleeding, perforated gastric cancer)
• synchronous tumors affecting survival
• pregnant patients
• age <18years

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Observational model

Cohort

Study locations

Italy · 1 center

• Fondazione Policlinico Universitario Agostino Gemelli IRCCS — Rome

Publications

• Busweiler LA, Schouwenburg MG, van Berge Henegouwen MI, Kolfschoten NE, de Jong PC, Rozema T, Wijnhoven BP, van Hillegersberg R, Wouters MW, van Sandick JW; Dutch Upper Gastrointestinal Cancer Audit (DUCA) group. Textbook outcome as a composite measure in oesophagogastric cancer surgery. Br J Surg. 2017 May;104(6):742-750. doi: 10.1002/bjs.10486. Epub 2017 Feb 27. PMID 28240357
• Sedlak K, Rawicz-Pruszynski K, Mlak R, Geca K, Skorzewska M, Pelc Z, Malecka-Massalska T, Polkowski WP. Union is strength: Textbook outcome with perioperative chemotherapy compliance decreases the risk of death in advanced gastric cancer patients. Eur J Surg Oncol. 2022 Feb;48(2):356-361. doi: 10.1016/j.ejso.2021.08.005. Epub 2021 Aug 11. PMID 34404560
• Sedlak K, Rawicz-Pruszynski K, Mlak R, Van Sandick J, Gisbertz S, Pera M, Dal Cero M, Baiocchi GL, Celotti A, Morgagni P, Vittimberga G, Hoelscher A, Moenig S, Kolodziejczyk P, Richter P, Gockel I, Piessen G, Da Costa PM, Davies A, Baker C, Allum W, Romario UF, De Pascale S, Rosati R, Reim D, Santos LL, D'ugo D, Wijnhoven B, Degiuli M, De Manzoni G, Kielan W, Frejlich E, Schneider P, Polkowski WP. PMID 37555342
• Pillay B, Wootten AC, Crowe H, Corcoran N, Tran B, Bowden P, Crowe J, Costello AJ. The impact of multidisciplinary team meetings on patient assessment, management and outcomes in oncology settings: A systematic review of the literature. Cancer Treat Rev. 2016 Jan;42:56-72. doi: 10.1016/j.ctrv.2015.11.007. Epub 2015 Nov 24. PMID 26643552
• Hanna TP, King WD, Thibodeau S, Jalink M, Paulin GA, Harvey-Jones E, O'Sullivan DE, Booth CM, Sullivan R, Aggarwal A. Mortality due to cancer treatment delay: systematic review and meta-analysis. BMJ. 2020 Nov 4;371:m4087. doi: 10.1136/bmj.m4087. PMID 33148535
• Kim TH, Suh YS, Huh YJ, Son YG, Park JH, Yang JY, Kong SH, Ahn HS, Lee HJ, Slankamenac K, Clavien PA, Yang HK. The comprehensive complication index (CCI) is a more sensitive complication index than the conventional Clavien-Dindo classification in radical gastric cancer surgery. Gastric Cancer. 2018 Jan;21(1):171-181. doi: 10.1007/s10120-017-0728-3. Epub 2017 Jun 8. PMID 28597328
• Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis. 1987;40(5):373-83. doi: 10.1016/0021-9681(87)90171-8. PMID 3558716
• Pak LM, Yang T, Wang J. The safety and efficacy of gastrectomy for gastric cancer among octogenarians: a western population-based study. J Geriatr Oncol. 2019 Jul;10(4):598-603. doi: 10.1016/j.jgo.2018.10.012. Epub 2018 Oct 24. PMID 30366851

Identifiers

NCT: NCT06923449 · ID 6671 Prot.n.0010178/24

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗