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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05539417
Other study ID # 2020.366
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 1, 2016
Est. completion date December 31, 2016

Study information

Verified date September 2022
Source Amsterdam UMC, location VUmc
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The treatment of rectal cancer is developing rapidly in the Netherlands, as well as internationally. This is accompanied by an increase in complexity of diagnosis and treatment, particularly when the tumor is located closer to the anorectal junction. Within these developments there is an important role for quality evaluation, where continuous feedback is able to improve care for rectal cancer in the Netherlands. By supplementing data from the Dutch ColoRectal Audit (DCRA) with additional data concerning diagnostics and treatment of rectal cancer patients operated in the year 2016, the Snapshot Rectumcarcinoom 2016 aimed to assess the improvement in surgical and oncological outcomes.


Description:

Multiple changes in the treatment pathway for rectal cancer patients have contributed to the rapid developments over the last decade. First of all, in 2014 there has been revision of the guidelines, which adjusted MRI assessment and changed indications for neoadjuvant treatment. Moreover, the start of population screening has led to earlier detection of rectal cancer, which has increased attention for organ-sparing treatment. Furthermore, there has been a shift in surgical treatment towards more minimally invasive surgery and new techniques including robotic surgery and TaTME have been introduced. The centralization of care for rectal cancer patients has led to a decrease in number of hospitals that provide this care. These changes together ask for quality evaluation to provide feedback for further improvement of rectal cancer care in the Netherlands. The Snapshot Rectumcarcinoom has been conducted retrospectively in 2021 concerning the patients operated in 2016 with a 4 year follow up. A similar snapshot study to evaluate outcomes of patients with rectal cancer who were operated in 2011 has been conducted retrospectively in 2015. This enables the Snapshot Rectumcarcinoom 2016 study to compare the oncological and surgical outcomes between 2011 and 2016. Moreover, this study aimed to evaluate the practices and treatment of patients rectal cancer and enlarged lateral lymph nodes in 2016. Since the implementation of TME surgery there has been a shift toward more lateral recurrences, most likely caused by inadequate treatment of lateral lymph nodes. An international guideline for the appropriate treatment has been lacking, causing substantial variation practices. For example, lateral lymph nodes are often not mentioned by radiologists or during multidisciplinary meetings and there is no clear consensus concerning delineation of radiotherapy in lateral nodes. Moreover, in contrast to Asian countries, in the Netherlands surgical resection of the lateral lymphatic tissue is almost never done as clinicians have always relied on neoadjuvant treatment to sterilize the lateral compartment. Nevertheless, the Consortium study found that 16% of the population of rectal cancer patients had enlarged lateral lymph nodes, leading to a 19.5% 5-year lateral recurrence rate. When these nodes were removed by lateral lymph node dissection (LLND), this recurrence percentage was reduced to 5.7%. The Snapshot study aimed assess the current heterogeneity in diagnostics and treatment of lateral lymph nodes and increase awareness by training of the different specialties.


Recruitment information / eligibility

Status Completed
Enrollment 3107
Est. completion date December 31, 2016
Est. primary completion date December 31, 2016
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Primary rectal cancer - Operated in 2016 in a Dutch hospital - Registred in the DCRA-register Exclusion Criteria: - Wait and see - Resection for regrowth after wait and see

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Amsterdam UMC, location VUmc

References & Publications (2)

Ogura A, Konishi T, Beets GL, Cunningham C, Garcia-Aguilar J, Iversen H, Toda S, Lee IK, Lee HX, Uehara K, Lee P, Putter H, van de Velde CJH, Rutten HJT, Tuynman JB, Kusters M; Lateral Node Study Consortium. Lateral Nodal Features on Restaging Magnetic Re — View Citation

Ogura A, Konishi T, Cunningham C, Garcia-Aguilar J, Iversen H, Toda S, Lee IK, Lee HX, Uehara K, Lee P, Putter H, van de Velde CJH, Beets GL, Rutten HJT, Kusters M; Lateral Node Study Consortium. Neoadjuvant (Chemo)radiotherapy With Total Mesorectal Excis — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary How do different variables affect oncological and surgical outcomes? This study will evaluate development between 2011 and 2016 by comparing this cohort to the Snapshot 2011 study. 2016-2020
Primary The variation in treatment and awareness of lateral lymph nodes in patients with rectal cancer. This study aims to assess the variation in treatment and the awareness of lateral lymph nodes in patients with rectal cancer. To increase awareness and improve current practices, MRI reassessment after training of radiologists will take place. Moreover, delineation training will be given to radiation oncologists. After these improvements in current practice, evaluation of this training will take place. 2016-2020
Secondary Anastomotic leakage Percentage of anastomotic leakage 2016-2020
Secondary Permanent stoma rate Permanent stoma rate 2016-2020
Secondary Presence of presacral abscess Presence of presacral abscess 2016-2020
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