Piecemeal Versus En Bloc Resection of Large Rectal Adenomas
NCT ID: NCT02238938
Last Updated: 2023-06-29
Study Results
Results pending
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
Recruitment Status
TERMINATED
Clinical Phase
NA
Total Enrollment
110 participants
Study Classification
INTERVENTIONAL
Study Start Date
2014-04-30
Study Completion Date
2022-05-30
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Currently, colonoscopy is the safest way to detect bowel tumors and polyps, since these can be biopsied and removed in one working process. If the size of adenomas is larger than 2 cm, resections are usually done in a hospital setting. For the resection of large adenomas, different approaches can be used. The so-called piecemeal resection is done with snares, to cut off parts of the adenoma piece by piece until the whole adenoma is resected. This technique is the standard therapy, but is not required for very large adenomas, which can often show cell alterations that indicate cancer. Therefore these adenomas should be resected in one piece. This is done by the so-called en-bloc resection. For this kind of therapy, different endoscopic knifes are use to cut off the adenoma as a whole. Both resection techniques are done usually by previous injection of saline or other liquids to elevate the lesion from its bottom tissue.
Although the piecemeal resection of large adenoma is the standard therapy, it shows recurrence rates of 10 to 25%, which afford repeated therapies and follow up controls. En-bloc resections, though, are expected to have less recurrence rates but are much more complex to perform. They have higher complication rates especially in the West, where it has bee introduced only a couple of years ago.
The data situation regarding safety and efficacy of both therapies is low. This study is the first one ever to compare piecemeal EMR and ESD in a randomized way. The study might have influence on the logistics of future adenoma processing and patient flow.
Although the piecemeal resection of large adenoma is the standard therapy, it shows recurrence rates of 10 to 25%, which afford repeated therapies and follow up controls. En-bloc resections, though, are expected to have less recurrence rates but are much more complex to perform. They have higher complication rates especially in the West, where it has bee introduced only a couple of years ago.
The data situation regarding safety and efficacy of both therapies is low. This study is the first one ever to compare piecemeal EMR and ESD in a randomized way. The study might have influence on the logistics of future adenoma processing and patient flow.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Endoscopic Full Thickness Resection Versus Standard Therapy of the Colorectal Neoplasia
NCT03868605
Polyps
Colon Cancer
UNKNOWN
NA
Evaluation of the Resection of Adenoma and Colic Adenocarcinoma by EMR Piecemeal or EMR/ESD Hybrid Technique
NCT02935049
Colorectal Adenoma
Intramucinous Adenocarcinoma
UNKNOWN
Complete Removal of Neoplastic Large Colorectal Polyps: a Prospective Randomized Comparison of Endoscopic Mucosal Resection or Conventional Polypectomy
NCT01950117
Colorectal Polyps
COMPLETED
NA
Endoscopic Treatment for Local Residual Neoplasia
NCT02386618
Colorectal Cancer
COMPLETED
NA
Efficacy of EndoClot™ Spraying After Endoscopic Resection of Large Colorectal Polyps
NCT05029934
Wound Endoscopical, Colon
After Polyp Resection, Colon
TERMINATED
NA
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
In 20 to 35% of colonoscopies due to symptoms or for prevention polyps, so-called adenoma, are found. Currently, colonoscopy is the best way to detect bowel tumors and polyps, since these can be biopsied and removed in one working process. If the size of adenoma is larger than 2 cm, resections are usually done in a hospital setting. Foremost for flat adenoma, the resection by snares piece by piece, the so-called piecemeal polypectomy, or piecemeal endoscopic mucosal resection (EMR), is state of the art. Resection will usually follow a submucosal saline injection (saline assisted polypectomy). Recurrences occur in 10 up to 25 %, requiring a reapplication of endoscopic therapy and follow up examinations.
Depending on the size of adenoma, increasing amounts of cell alterations of an advanced stage such as high grade dysplasia / intraepithelial neoplasia (HGIN) up to early cancer are found. In these cases, for histo-pathological and oncological reasons, a resection in a solitary manner (en-bloc resection) is necessary to evaluate the completeness of resection properly. Also, former studies showed that recurrence rate could be decreased considerably by en-bloc resections, since the aim is to perform a complete resection basally and laterally. New endoscopic techniques of en-bloc resections have been introduced since a couple of years, using several endoscopic knifes to cut adenoma down after submucosal injection of liquid and consecutively dissect it from the tissue underneath. This technique is mostly called endoscopic submucosal dissection (ESD), and, with not too large adenoma, can be combined with snare resection, too. The complexity of this method though is much larger than that of snare resection. Therefore, the western success rate is considerably less than in Japan, where it was developed first, and where higher numbers of cases exist in the upper GI tract as well as in the lower GI tract. All in all, the complication rate of en-bloc resection is higher than that of snare resection. Those complications, mostly perforations, are endoscopically controllable in most cases, though.
In comparison with Japan, Korea or China, early malign lesions oft he upper GI tract in the West are rare. Therefore, this study will be conducted on (colo)rectal lesions, which appear much more often in the West.
All in all, for efficacy (resection in total, number of recurrences) and risk (perforations), there is an indistinct data situation between piecemeal resection (EMR) and en-bloc resection (ESD). Up to now, no randomised comparing data exist. The planned study is the first randomised study between ESD and piecemeal EMR at all, since there are no studies been done for the upper GI tract, either. For reasons of complexity, ESD will conceivably remain a method for specialized centers, while piecemeal polypectomies are done in numerous hospitals. Therefore, the outcomes of this study will have influence on future logistics in polypectomies and flow of patients with large colorectal adenoma.
Piecemeal resection will be done by snare following marking and submucosal injection of saline or equivalent liquids. Small leftover adenoma tissue will be resected thoroughly by snare or forceps. High resolution endoscopes are mandatory.
After three months, an Argon plasma coagulation (APC) therapy will follow any piecemeal resection, if necessary, another resection of leftover adenoma will be done. This second session can be done by sigmoidoscopy.
En- bloc resection is done after marking by use of different customary endoscopic knifes including combining devices as hybrid knife to cut down the lesion. After submucosal injection of liquid (saline or equivalent) to elevate the tissue it will be dissected and removed by a snare of adequate size solitarily. Since the aim of this method is the total resection basally and laterally, only one session is intended.
Follow-up care: sigmoidoscopy after 6 and 18 months, colonoscopy after 36 months each after the end of the primary therapy session(s). Diagnostics will be done endoscopically and histologically of at least 6 biopsies if the size of lesion was up to 3 cm, and of at least 10 biopsies for larger lesions.
Depending on the size of adenoma, increasing amounts of cell alterations of an advanced stage such as high grade dysplasia / intraepithelial neoplasia (HGIN) up to early cancer are found. In these cases, for histo-pathological and oncological reasons, a resection in a solitary manner (en-bloc resection) is necessary to evaluate the completeness of resection properly. Also, former studies showed that recurrence rate could be decreased considerably by en-bloc resections, since the aim is to perform a complete resection basally and laterally. New endoscopic techniques of en-bloc resections have been introduced since a couple of years, using several endoscopic knifes to cut adenoma down after submucosal injection of liquid and consecutively dissect it from the tissue underneath. This technique is mostly called endoscopic submucosal dissection (ESD), and, with not too large adenoma, can be combined with snare resection, too. The complexity of this method though is much larger than that of snare resection. Therefore, the western success rate is considerably less than in Japan, where it was developed first, and where higher numbers of cases exist in the upper GI tract as well as in the lower GI tract. All in all, the complication rate of en-bloc resection is higher than that of snare resection. Those complications, mostly perforations, are endoscopically controllable in most cases, though.
In comparison with Japan, Korea or China, early malign lesions oft he upper GI tract in the West are rare. Therefore, this study will be conducted on (colo)rectal lesions, which appear much more often in the West.
All in all, for efficacy (resection in total, number of recurrences) and risk (perforations), there is an indistinct data situation between piecemeal resection (EMR) and en-bloc resection (ESD). Up to now, no randomised comparing data exist. The planned study is the first randomised study between ESD and piecemeal EMR at all, since there are no studies been done for the upper GI tract, either. For reasons of complexity, ESD will conceivably remain a method for specialized centers, while piecemeal polypectomies are done in numerous hospitals. Therefore, the outcomes of this study will have influence on future logistics in polypectomies and flow of patients with large colorectal adenoma.
Piecemeal resection will be done by snare following marking and submucosal injection of saline or equivalent liquids. Small leftover adenoma tissue will be resected thoroughly by snare or forceps. High resolution endoscopes are mandatory.
After three months, an Argon plasma coagulation (APC) therapy will follow any piecemeal resection, if necessary, another resection of leftover adenoma will be done. This second session can be done by sigmoidoscopy.
En- bloc resection is done after marking by use of different customary endoscopic knifes including combining devices as hybrid knife to cut down the lesion. After submucosal injection of liquid (saline or equivalent) to elevate the tissue it will be dissected and removed by a snare of adequate size solitarily. Since the aim of this method is the total resection basally and laterally, only one session is intended.
Follow-up care: sigmoidoscopy after 6 and 18 months, colonoscopy after 36 months each after the end of the primary therapy session(s). Diagnostics will be done endoscopically and histologically of at least 6 biopsies if the size of lesion was up to 3 cm, and of at least 10 biopsies for larger lesions.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Colorectal Adenoma With Mild Dysplasia
Colorectal Adenoma With Severe Dysplasia
Colorectal Adenomatous Polyp
Colorectal Low Grade Intraepithelial Neoplasia
Colorectal High Grade Intraepithelial Neoplasia
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
Allocation Method
RANDOMIZED
Intervention Model
PARALLEL
Primary Study Purpose
TREATMENT
Blinding Strategy
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
en-bloc resection
En- bloc resection is done after marking by use of different customary endoscopic knifes including combining devices as hybrid knife to cut down the lesion. After submucosal injection of liquid (saline or equivalent) to elevate the tissue it will be dissected and removed by a snare of adequate size solitarily. Since the aim of this method is the total resection basally and laterally, only one session is intended.
Group Type
EXPERIMENTAL
en-bloc resection
Intervention Type
PROCEDURE
En- bloc resection after marking by use of different customary endoscopic knifes including combining devices as hybrid knife to cut down the lesion. After submucosal injection of liquid (saline or equivalent) to elevate the tissue it will be dissected and removed by a snare of adequate size solitarily.
piecemeal resection
Piecemeal resection will be done by snare following marking and submucosal injection of saline or equivalent liquids. Small leftover adenoma tissue will be resected thoroughly by snare or forceps. High resolution endoscopes are mandatory.
After three months, an APC therapy will follow any piecemeal resection, if necessary, another resection of leftover adenoma will be done. This second session can be done by sigmoidoscopy.
Group Type
ACTIVE_COMPARATOR
piecemeal resection
Intervention Type
PROCEDURE
Piecemeal resection is done by snare after marking and submucosal injection of saline or equivalent liquids. Small leftover adenoma tissue will be resected thoroughly by snare or forceps.
After three months, an APC therapy will follow any piecemeal resection, if necessary, another resection of leftover adenoma will be done.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
en-bloc resection
En- bloc resection after marking by use of different customary endoscopic knifes including combining devices as hybrid knife to cut down the lesion. After submucosal injection of liquid (saline or equivalent) to elevate the tissue it will be dissected and removed by a snare of adequate size solitarily.
Intervention Type
PROCEDURE
piecemeal resection
Piecemeal resection is done by snare after marking and submucosal injection of saline or equivalent liquids. Small leftover adenoma tissue will be resected thoroughly by snare or forceps.
After three months, an APC therapy will follow any piecemeal resection, if necessary, another resection of leftover adenoma will be done.
Intervention Type
PROCEDURE
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
endoscopic submucosal dissection
ESD
piecemeal polypectomy
piecemeal endoscopic mucosal resection
piecemeal EMR
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* patients with large non pedunculated colorectal adenomas designated for endoscopic resection up to 15 cm ab ano, length 2 cm to 5 cm, maximum hemicircumferential
* age \> 18 years
* signed Informed Consent
* age \> 18 years
* signed Informed Consent
Exclusion Criteria
* adenomas smaller or larger than described above
* more than one large rectal adenoma
* adenomas with known or suspected carcinoma, proven by previous biopsies
* adenomas with known or suspected carcinoma that do not seem to be resectable by endoscopy, e.g. ulcers, suspected infiltration of submucosa after endoscopic or ultrasound diagnostics
* patients with chronic inflammatory bowel diseases
* severe general disease, including metastasising carcinomas
* coagulation abnormalities or anticoagulant drug use which make resection therapy impossible
* bad general state of health (American Society of Anesthesiologists Classification (ASA) IV or more)
* pregnancy and lactation
* recurrence or leftover dysplasia after extended endoscopic or surgical therapy (transanal endoscopic microsurgery (TEM))
* more than one large rectal adenoma
* adenomas with known or suspected carcinoma, proven by previous biopsies
* adenomas with known or suspected carcinoma that do not seem to be resectable by endoscopy, e.g. ulcers, suspected infiltration of submucosa after endoscopic or ultrasound diagnostics
* patients with chronic inflammatory bowel diseases
* severe general disease, including metastasising carcinomas
* coagulation abnormalities or anticoagulant drug use which make resection therapy impossible
* bad general state of health (American Society of Anesthesiologists Classification (ASA) IV or more)
* pregnancy and lactation
* recurrence or leftover dysplasia after extended endoscopic or surgical therapy (transanal endoscopic microsurgery (TEM))
Minimum Eligible Age
18 Years
Eligible Sex
ALL
Accepts Healthy Volunteers
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Universitätsklinikum Hamburg-Eppendorf
OTHER
Sponsor Role
lead
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Prof. Dr. Thomas Rösch
Clinical Director, Department of Interdisciplinary Endoscopy
Responsibility Role
PRINCIPAL_INVESTIGATOR
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Thomas Rösch, Prof. Dr.
Role: STUDY_CHAIR
University Hospital Eppendorf, Hamburg
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Sana Klinikum Lichtenberg
Berlin, , Germany
Site Status
Vivantes Wenckebach-Klinikum
Berlin, , Germany
Site Status
University Hospital Eppendorf
Hamburg, , Germany
Site Status
St. Bernward Krankenhaus
Hildesheim, , Germany
Site Status
Krankenhaus Barmherzige Brüder Regensburg
Regensburg, , Germany
Site Status
Portsmouth Hospitals NHS Trust
Portsmouth, , United Kingdom
Site Status
Countries
Review the countries where the study has at least one active or historical site.
Germany
United Kingdom
References
Explore related publications, articles, or registry entries linked to this study.
Risio M. The natural history of colorectal adenomas and early cancer. Pathologe. 2012 Nov;33 Suppl 2:206-10. doi: 10.1007/s00292-012-1640-6.
Reference Type
BACKGROUND
Lieberman DA, Weiss DG, Harford WV, Ahnen DJ, Provenzale D, Sontag SJ, Schnell TG, Chejfec G, Campbell DR, Kidao J, Bond JH, Nelson DB, Triadafilopoulos G, Ramirez FC, Collins JF, Johnston TK, McQuaid KR, Garewal H, Sampliner RE, Esquivel R, Robertson D. Five-year colon surveillance after screening colonoscopy. Gastroenterology. 2007 Oct;133(4):1077-85. doi: 10.1053/j.gastro.2007.07.006.
Reference Type
BACKGROUND
Saini SD, Kim HM, Schoenfeld P. Incidence of advanced adenomas at surveillance colonoscopy in patients with a personal history of colon adenomas: a meta-analysis and systematic review. Gastrointest Endosc. 2006 Oct;64(4):614-26. doi: 10.1016/j.gie.2006.06.057.
Reference Type
BACKGROUND
Stegeman I, de Wijkerslooth TR, Stoop EM, van Leerdam ME, Dekker E, van Ballegooijen M, Kuipers EJ, Fockens P, Kraaijenhagen RA, Bossuyt PM. Colorectal cancer risk factors in the detection of advanced adenoma and colorectal cancer. Cancer Epidemiol. 2013 Jun;37(3):278-83. doi: 10.1016/j.canep.2013.02.004. Epub 2013 Mar 9.
Reference Type
BACKGROUND
van Heijningen EM, Lansdorp-Vogelaar I, Kuipers EJ, Dekker E, Lesterhuis W, Ter Borg F, Vecht J, De Jonge V, Spoelstra P, Engels L, Bolwerk CJ, Timmer R, Kleibeuker JH, Koornstra JJ, van Ballegooijen M, Steyerberg EW. Features of adenoma and colonoscopy associated with recurrent colorectal neoplasia based on a large community-based study. Gastroenterology. 2013 Jun;144(7):1410-8. doi: 10.1053/j.gastro.2013.03.002. Epub 2013 Mar 7.
Reference Type
BACKGROUND
Jang JH, Balik E, Kirchoff D, Tromp W, Kumar A, Grieco M, Feingold DL, Cekic V, Njoh L, Whelan RL. Oncologic colorectal resection, not advanced endoscopic polypectomy, is the best treatment for large dysplastic adenomas. J Gastrointest Surg. 2012 Jan;16(1):165-71; discussion 171-2. doi: 10.1007/s11605-011-1746-9. Epub 2011 Nov 5.
Reference Type
BACKGROUND
Repici A, Hassan C, De Paula Pessoa D, Pagano N, Arezzo A, Zullo A, Lorenzetti R, Marmo R. Efficacy and safety of endoscopic submucosal dissection for colorectal neoplasia: a systematic review. Endoscopy. 2012 Feb;44(2):137-50. doi: 10.1055/s-0031-1291448. Epub 2012 Jan 23.
Reference Type
BACKGROUND
Farhat S, Chaussade S, Ponchon T, Coumaros D, Charachon A, Barrioz T, Koch S, Houcke P, Cellier C, Heresbach D, Lepilliez V, Napoleon B, Bauret P, Coron E, Le Rhun M, Bichard P, Vaillant E, Calazel A, Bensoussan E, Bellon S, Mangialavori L, Robin F, Prat F; SFED ESD study group. Endoscopic submucosal dissection in a European setting. A multi-institutional report of a technique in development. Endoscopy. 2011 Aug;43(8):664-70. doi: 10.1055/s-0030-1256413. Epub 2011 May 27.
Reference Type
BACKGROUND
Probst A, Pommer B, Golger D, Anthuber M, Arnholdt H, Messmann H. Endoscopic submucosal dissection in gastric neoplasia - experience from a European center. Endoscopy. 2010 Dec;42(12):1037-44. doi: 10.1055/s-0030-1255668. Epub 2010 Oct 22.
Reference Type
BACKGROUND
Ribeiro-Mourao F, Pimentel-Nunes P, Dinis-Ribeiro M. Endoscopic submucosal dissection for gastric lesions: results of an European inquiry. Endoscopy. 2010 Oct;42(10):814-9. doi: 10.1055/s-0030-1255778. Epub 2010 Sep 30.
Reference Type
BACKGROUND
Neuhaus H, Terheggen G, Rutz EM, Vieth M, Schumacher B. Endoscopic submucosal dissection plus radiofrequency ablation of neoplastic Barrett's esophagus. Endoscopy. 2012 Dec;44(12):1105-13. doi: 10.1055/s-0032-1310155. Epub 2012 Sep 11.
Reference Type
BACKGROUND
Probst A, Golger D, Anthuber M, Markl B, Messmann H. Endoscopic submucosal dissection in large sessile lesions of the rectosigmoid: learning curve in a European center. Endoscopy. 2012 Jul;44(7):660-7. doi: 10.1055/s-0032-1309403. Epub 2012 Apr 23.
Reference Type
BACKGROUND
Adler A, Roll S, Marowski B, Drossel R, Rehs HU, Willich SN, Riese J, Wiedenmann B, Rosch T; Berlin Private-Practice Gastroenterology Working Group. Appropriateness of colonoscopy in the era of colorectal cancer screening: a prospective, multicenter study in a private-practice setting (Berlin Colonoscopy Project 1, BECOP 1). Dis Colon Rectum. 2007 Oct;50(10):1628-38. doi: 10.1007/s10350-007-9029-y.
Reference Type
BACKGROUND
Redaelli A, Cranor CW, Okano GJ, Reese PR. Screening, prevention and socioeconomic costs associated with the treatment of colorectal cancer. Pharmacoeconomics. 2003;21(17):1213-38. doi: 10.2165/00019053-200321170-00001.
Reference Type
BACKGROUND
Soerjomataram I, Lortet-Tieulent J, Parkin DM, Ferlay J, Mathers C, Forman D, Bray F. Global burden of cancer in 2008: a systematic analysis of disability-adjusted life-years in 12 world regions. Lancet. 2012 Nov 24;380(9856):1840-50. doi: 10.1016/S0140-6736(12)60919-2. Epub 2012 Oct 16.
Reference Type
BACKGROUND
van den Broek FJ, de Graaf EJ, Dijkgraaf MG, Reitsma JB, Haringsma J, Timmer R, Weusten BL, Gerhards MF, Consten EC, Schwartz MP, Boom MJ, Derksen EJ, Bijnen AB, Davids PH, Hoff C, van Dullemen HM, Heine GD, van der Linde K, Jansen JM, Mallant-Hent RC, Breumelhof R, Geldof H, Hardwick JC, Doornebosch PG, Depla AC, Ernst MF, van Munster IP, de Hingh IH, Schoon EJ, Bemelman WA, Fockens P, Dekker E. Transanal endoscopic microsurgery versus endoscopic mucosal resection for large rectal adenomas (TREND-study). BMC Surg. 2009 Mar 13;9:4. doi: 10.1186/1471-2482-9-4.
Reference Type
BACKGROUND
Moss A, Bourke MJ, Williams SJ, Hourigan LF, Brown G, Tam W, Singh R, Zanati S, Chen RY, Byth K. Endoscopic mucosal resection outcomes and prediction of submucosal cancer from advanced colonic mucosal neoplasia. Gastroenterology. 2011 Jun;140(7):1909-18. doi: 10.1053/j.gastro.2011.02.062. Epub 2011 Mar 8.
Reference Type
BACKGROUND
Kim HH, Kim JH, Park SJ, Park MI, Moon W. Risk factors for incomplete resection and complications in endoscopic mucosal resection for lateral spreading tumors. Dig Endosc. 2012 Jul;24(4):259-66. doi: 10.1111/j.1443-1661.2011.01232.x. Epub 2012 Feb 7.
Reference Type
BACKGROUND
Kobayashi N, Yoshitake N, Hirahara Y, Konishi J, Saito Y, Matsuda T, Ishikawa T, Sekiguchi R, Fujimori T. Matched case-control study comparing endoscopic submucosal dissection and endoscopic mucosal resection for colorectal tumors. J Gastroenterol Hepatol. 2012 Apr;27(4):728-33. doi: 10.1111/j.1440-1746.2011.06942.x.
Reference Type
BACKGROUND
Ahlawat SK, Gupta N, Benjamin SB, Al-Kawas FH. Large colorectal polyps: endoscopic management and rate of malignancy: does size matter? J Clin Gastroenterol. 2011 Apr;45(4):347-54. doi: 10.1097/MCG.0b013e3181f3a2e0.
Reference Type
BACKGROUND
Ah Soune P, Menard C, Salah E, Desjeux A, Grimaud JC, Barthet M. Large endoscopic mucosal resection for colorectal tumors exceeding 4 cm. World J Gastroenterol. 2010 Feb 7;16(5):588-95. doi: 10.3748/wjg.v16.i5.588.
Reference Type
BACKGROUND
Hurlstone DP, Sanders DS, Cross SS, George R, Shorthouse AJ, Brown S. A prospective analysis of extended endoscopic mucosal resection for large rectal villous adenomas: an alternative technique to transanal endoscopic microsurgery. Colorectal Dis. 2005 Jul;7(4):339-44. doi: 10.1111/j.1463-1318.2005.00813.x.
Reference Type
BACKGROUND
Pigot F, Bouchard D, Mortaji M, Castinel A, Juguet F, Chaume JC, Faivre J. Local excision of large rectal villous adenomas: long-term results. Dis Colon Rectum. 2003 Oct;46(10):1345-50. doi: 10.1007/s10350-004-6748-1.
Reference Type
BACKGROUND
Doniec JM, Lohnert MS, Schniewind B, Bokelmann F, Kremer B, Grimm H. Endoscopic removal of large colorectal polyps: prevention of unnecessary surgery? Dis Colon Rectum. 2003 Mar;46(3):340-8. doi: 10.1007/s10350-004-6553-x.
Reference Type
BACKGROUND
Pohl H, Srivastava A, Bensen SP, Anderson P, Rothstein RI, Gordon SR, Levy LC, Toor A, Mackenzie TA, Rosch T, Robertson DJ. Incomplete polyp resection during colonoscopy-results of the complete adenoma resection (CARE) study. Gastroenterology. 2013 Jan;144(1):74-80.e1. doi: 10.1053/j.gastro.2012.09.043. Epub 2012 Sep 25.
Reference Type
BACKGROUND
Rosch T, Sarbia M, Schumacher B, Deinert K, Frimberger E, Toermer T, Stolte M, Neuhaus H. Attempted endoscopic en bloc resection of mucosal and submucosal tumors using insulated-tip knives: a pilot series. Endoscopy. 2004 Sep;36(9):788-801. doi: 10.1055/s-2004-825838.
Reference Type
BACKGROUND
Neuhaus H, Costamagna G, Deviere J, Fockens P, Ponchon T, Rosch T; ARCADE Group. Endoscopic submucosal dissection (ESD) of early neoplastic gastric lesions using a new double-channel endoscope (the "R-scope"). Endoscopy. 2006 Oct;38(10):1016-23. doi: 10.1055/s-2006-944830.
Reference Type
BACKGROUND
Adler A, Wegscheider K, Lieberman D, Aminalai A, Aschenbeck J, Drossel R, Mayr M, Mross M, Scheel M, Schroder A, Gerber K, Stange G, Roll S, Gauger U, Wiedenmann B, Altenhofen L, Rosch T. Factors determining the quality of screening colonoscopy: a prospective study on adenoma detection rates, from 12,134 examinations (Berlin colonoscopy project 3, BECOP-3). Gut. 2013 Feb;62(2):236-41. doi: 10.1136/gutjnl-2011-300167. Epub 2012 Mar 22.
Reference Type
BACKGROUND
Adler A, Aminalai A, Aschenbeck J, Drossel R, Mayr M, Scheel M, Schroder A, Yenerim T, Wiedenmann B, Gauger U, Roll S, Rosch T. Latest generation, wide-angle, high-definition colonoscopes increase adenoma detection rate. Clin Gastroenterol Hepatol. 2012 Feb;10(2):155-9. doi: 10.1016/j.cgh.2011.10.026. Epub 2011 Nov 2.
Reference Type
BACKGROUND
Adler A, Aschenbeck J, Yenerim T, Mayr M, Aminalai A, Drossel R, Schroder A, Scheel M, Wiedenmann B, Rosch T. Narrow-band versus white-light high definition television endoscopic imaging for screening colonoscopy: a prospective randomized trial. Gastroenterology. 2009 Feb;136(2):410-6.e1; quiz 715. doi: 10.1053/j.gastro.2008.10.022. Epub 2008 Oct 15.
Reference Type
BACKGROUND
Adler A, Pohl H, Papanikolaou IS, Abou-Rebyeh H, Schachschal G, Veltzke-Schlieker W, Khalifa AC, Setka E, Koch M, Wiedenmann B, Rosch T. A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? Gut. 2008 Jan;57(1):59-64. doi: 10.1136/gut.2007.123539. Epub 2007 Aug 6.
Reference Type
BACKGROUND
Pohl H, Aschenbeck J, Drossel R, Schroder A, Mayr M, Koch M, Rothe K, Anders M, Voderholzer W, Hoffmann J, Schulz HJ, Liehr RM, Gottschalk U, Wiedenmann B, Rosch T. Endoscopy in Barrett's oesophagus: adherence to standards and neoplasia detection in the community practice versus hospital setting. J Intern Med. 2008 Oct;264(4):370-8. doi: 10.1111/j.1365-2796.2008.01977.x. Epub 2008 May 15.
Reference Type
BACKGROUND
Meining A, Ott R, Becker I, Hahn S, Muhlen J, Werner M, Hofler H, Classen M, Heldwein W, Rosch T. The Munich Barrett follow up study: suspicion of Barrett's oesophagus based on either endoscopy or histology only--what is the clinical significance? Gut. 2004 Oct;53(10):1402-7. doi: 10.1136/gut.2003.036822.
Reference Type
BACKGROUND
Heldwein W, Dollhopf M, Rosch T, Meining A, Schmidtsdorff G, Hasford J, Hermanek P, Burlefinger R, Birkner B, Schmitt W; Munich Gastroenterology Group. The Munich Polypectomy Study (MUPS): prospective analysis of complications and risk factors in 4000 colonic snare polypectomies. Endoscopy. 2005 Nov;37(11):1116-22. doi: 10.1055/s-2005-870512.
Reference Type
BACKGROUND
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
PV 4580
Identifier Type: REGISTRY
Identifier Source: secondary_id
PERLA
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.
Inspection of the Colon Using a Retrograde Viewing Device for Detection of Colorectal Polyps
NCT04107376
UNKNOWN
NA
Computer Assisted Measurement of Colorectal Polyps
NCT02970760
UNKNOWN
Full Thickness Resection or Endoscopic Submucosal Dissection for Difficult Colorectal Lesions.
NCT05502276
COMPLETED
NA
Improving Complete Endoscopic Mucosal Resection (EMR) of Colorectal Neoplasia
NCT01471756
COMPLETED
PHASE4
Evaluation of Rectal Tumor Margin Using Confocal Endomicroscopy and Comparison to Histopathology
NCT01887509
TERMINATED
NA
Endoscopic Full-thickness REsection of Residual Colorectal Lesions - The FiRE Study
NCT02353533
UNKNOWN
NA
Early Rectal Cancer: Endoscopic Submucosal Dissection or Transanal Endoscopic Microsurgery?
NCT02885142
TERMINATED
NA
Reducing Neoplasia Recurrence After Non-thermal Endoscopic Resection of Large Colorectal Polyps
NCT07242820
NOT_YET_RECRUITING
NA
Study on Complications, EfficAcy and Costs of Large Polypectomy
NCT02694120
UNKNOWN
Endoscopic Submucosal Dissection vs. Transanal Endoscopic Surgery for Rectal Neoplasia
NCT06902701
NOT_YET_RECRUITING
Mri IN STaging REctal Polyp Planes
NCT02532803
UNKNOWN
NA
Comparative Effectiveness of Hot Versus Cold Snare Polypectomy of Small Colorectal Polyps
NCT02484079
COMPLETED
NA
Endoscopic Resection of Gastrointestinal Neoplasms
NCT04780256
RECRUITING
Efficacy and Safety of Cold Snare Polypectomy (CSP) of Intermediate Sized Colorectal Polyps 10-15 mm
NCT04464837
UNKNOWN
NA
Complete Closure After Endoscopic Mucosal Resection of Large Non-Pedunculated Colorectal Polyps
NCT06807073
RECRUITING
NA
Outcomes of Perforation After Colorectal Endoscopic Submucosal Dissection
NCT05728710
UNKNOWN
Impact of Hybrid-ESD+ and LiftUp® on the en Bloc/R0 Rate in Colorectal Adenomas Between 2 and 3 cm
NCT05517369
WITHDRAWN
NA
Reducing Neoplasia Recurrence After Endoscopic Resection of Large Colorectal Polyps
NCT06271941
RECRUITING
NA
Endocuff Vision Assisted vs. Standard Polyp Resection in the Colorectum
NCT03117114
COMPLETED
NA
Endoscopic Submucosal Dissection Versus Laparoscopic Resection for Early Colorectal Neoplasms
NCT01112046
UNKNOWN
PHASE3
Endoscopic Full Thickness Resection in the Lower GI Tract With the "Full Thickness Resection Device"
NCT02362126
UNKNOWN
Computer Assisted Optical Assessment of Small Colorectal Polyps
NCT02522702
UNKNOWN
Six Versus Twelve Month Index Follow-up After Large Colon Polyp Resection
NCT07198945
NOT_YET_RECRUITING
NA
Computer Aided Diagnosis (CADx) for Colorectal Polyps Resect-and-Discard Strategy
NCT06062095
RECRUITING
NA
Recurrence After Gastric and Intestinal Polyp Resection
NCT07314554
NOT_YET_RECRUITING