Optimal Surgery and MRI Based Radiochemotherapy in Rectal Carcinoma (OCUM)
Optimal Surgery With Total Mesorectal Excision and MRI Based Multimodal Therapy of Rectal Carcinoma
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Contacts and Locations
Study Locations
-
-
-
Mainz, Germany, 55131
- University Medicine Center Department of General and Abdomial Surgery
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients with histologically confirmed invasive carcinoma of the rectum infiltrating beyond the submucosa (cT3, cT2N+, cM0)
- Elective surgery
- Fit for surgery
- Preoperative MRI of pelvis
Exclusion Criteria:
- uT1 Tumors
- provided for local excision
- previous or synchronous malignant tumors (except squamous and basal cell carcinoma of the skin and carcinoma in situ of the cervix)
- previous irradiation of the pelvis
- ulcerative colitis or Crohn's disease
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
Number of groups / cohorts
Cohorts and Interventions
Group / CohortGroup / Cohort |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
advanced rectal cancer
Patients with carcinoma of the middle rectum with positive mrCRM (≤ 1 mm), with cT3 low rectal carcinoma, and with cT4 Tumors Arm 1 Long course radiochemotherapy before total mesorectal excision Arm 2 total mesorectal excision without radiochemotherapy
|
long course 5-FU based radiochemotherapy before total mesorectal excision
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Locoregional recurrence rate
Time Frame: Five year
|
Five year
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Rate of involvement of circumferential resection margin (pCRM positive of resected specimens
Time Frame: postoperative
|
pCRM positive means a distance of the tumor from circumferential resection margin 1mm or less.
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postoperative
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
General Publications
- Ruppert R, Kube R, Strassburg J, Lewin A, Baral J, Maurer CA, Sauer J, Junginger T, Hermanek P, Merkel S; other members of the OCUM Group. Avoidance of Overtreatment of Rectal Cancer by Selective Chemoradiotherapy: Results of the Optimized Surgery and MRI-Based Multimodal Therapy Trial. J Am Coll Surg. 2020 Oct;231(4):413-425.e2. doi: 10.1016/j.jamcollsurg.2020.06.023. Epub 2020 Jul 19.
- Kreis ME, Ruppert R, Ptok H, Strassburg J, Brosi P, Lewin A, Schon MR, Sauer J, Junginger T, Merkel S, Hermanek P; OCUM study group. Use of Preoperative Magnetic Resonance Imaging to Select Patients with Rectal Cancer for Neoadjuvant Chemoradiation--Interim Analysis of the German OCUM Trial (NCT01325649). J Gastrointest Surg. 2016 Jan;20(1):25-32; discussion 32-3. doi: 10.1007/s11605-015-3011-0. Epub 2015 Nov 10.
- Kreis ME, Maurer CA, Ruppert R, Ptok H, Strassburg J, Junginger T, Merkel S, Hermanek P. [Lymph node dissection after primary surgery and neoadjuvant radiochemotherapy of rectal cancer. Interim analysis of a multicenter prospective observational study (OCUM)]. Chirurg. 2015 Dec;86(12):1132-7. doi: 10.1007/s00104-015-0062-4. German.
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- Ocumstudy 19.08.2009
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