CClinicalTrials.gg
CompletedNCT02239536HSPvsHSPASIUpdated Apr 14, 2020Results posted

Hot Snare Versus Hot Snare Polypectomy With Saline Injection for Colorectal Polyps

An interventional study of hot snare polypectomy and hot snare polypectomy after saline injection in Polyp of Large Intestine, sponsored by Bo-In Lee. Completed at 1 site in Korea, Republic of. Open to participants aged 30 Years to 85 Years. Per ClinicalTrials.gov, last updated 2020-04-14.

Sponsored by Bo-In Lee · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jun 2014, registered Sep 2014).
Phase
Not applicable
Study type
Interventional
Enrollment
362
Allocation
Randomized
Ages
30 Years to 85 Years
Sex
All
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Study summary

The complete removal of colorectal polyp is required to prevent tumor recurrence and development of potential interval cancers. However, several studies have shown high incomplete resection rate in endoscopic removal of neoplastic colorectal polyps larger than 5 mm. The polypectomy techniques using hot snare are usually used for the removal of these polyps. However, the optimal technique for complete resection of these polyps is unknown. There are few data comparing hot snare polypectomy with hot snare polypectomy after saline injection for complete resection of colorectal polyps (5mm or larger). The aim of this study is to compare hot snare polypectomy with hot snare polypectomy after saline injection for removal of 5-10mm sized colorectal polyps.

02

Conditions studied

  • Polyp of Large Intestine

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Keywords

  • neoplastic colorectal polyp
  • hot snare polypectomy
  • hot snare polypectomy after saline injection
03

In context

Polyps

385 studies on the registry are indexed under Polyps; 59 are open to participants now.

This study's enrollment of 362 is above the median of 160 across 250 interventional studies indexed under Polyps.

Browse Polyps studies →

Lead sponsor

Bo-In Lee is the lead sponsor of 3 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
30 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients over the age of 30
  • 5\~10mm sized colorectal polyps
  • Informed consent

Exclusion criteria

Exclusion Criteria:

  • Inflammatory bowel diseases (Crohn's disease, or ulcerative colitis)
  • Patient undergoing antiplatelets (aspirin, clopidogrel and others) or anticoagulant therapy
  • ASA class III or more
  • Any condition which, in the opinion of the Investigator, places the patient at unacceptable risk if he/she were to participate in the study
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
362 participants (actual)

Study arms

  • Experimental
    Hot snare polypectomy

    Intervention: Procedure: removal of eligible polyps using hot snare polypectomy technique

    Procedure: hot snare polypectomy

  • Experimental
    Hot snare polypectomy(saline injection)

    Intervention: Procedure: removal of eligible polyps using hot snare polypectomy after saline injection technique

    Procedure: hot snare polypectomy after saline injection

Interventions

  • Procedurehot snare polypectomy

    hot snare polypectomy using electrosurgical snare with application of electrocautery for eligible polyps

  • Procedurehot snare polypectomy after saline injection

    hot snare polypectomy after saline injection using electrosurgical snare with application of electrocautery for eligible polyps

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What researchers measure

Primary outcomes

  1. Complete Resection Rate

    Complete resection was defined as the absence of residual polyp in the resection margin

    Time frame: 2 weeks after

Secondary outcomes

  1. Lateral Margin

    Observation of maring on a recsected specimen

    Time frame: 2 weeks after

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Results

Posted Apr 14, 2020

Participant flow

Patients were excluded if they have (1) a bleeding tendency or ever taken antiplatelet or anticoagulation therapy within 1 week before undergoing the procedure, (2) An inflammatory bowel disease, (3) a polyposis syndrome, or (4) an inability to provide informed consent.

Participant flow — Overall Study
MilestoneHot Snare PolypectomyHot Snare Polypectomy(Saline Injection)
Started190172
Completed167155
Not completed2317
Withdrew: Non-neoplastic polyp2317

Outcome measures

PrimaryComplete Resection Rate

Complete resection was defined as the absence of residual polyp in the resection margin

Time frame:
2 weeks after
Reported as:
Count of participants · Participants
Complete Resection Rate
ParticipantsHot Snare PolypectomyHot Snare Polypectomy(Saline Injection)
Complete resection161148
Incomplete resection67
Statistical analysis
  • Hot Snare Polypectomy vs Hot Snare Polypectomy(Saline Injection) · Chi-squared · p = 0.05
SecondaryLateral Margin

Observation of maring on a recsected specimen

Time frame:
2 weeks after
Reported as:
Count of participants · Participants
Lateral Margin
ParticipantsHot Snare PolypectomyHot Snare Polypectomy(Saline Injection)
Negative83116
Positive32
Inconclusive9137
Statistical analysis
  • Hot Snare Polypectomy vs Hot Snare Polypectomy(Saline Injection) · Chi-squared · p = 0.05
  • Hot Snare Polypectomy vs Hot Snare Polypectomy(Saline Injection) · Chi-squared · p = 0.001

Adverse events

Collected over 2 weeks after polypectomy. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Hot Snare Polypectomy0/167 (0%)0/167 (0%)17/167 (10.2%)
Hot Snare Polypectomy(Saline Injection)0/155 (0%)0/155 (0%)13/155 (8.4%)
Most frequent serious events
Most frequent serious events
EventHot Snare PolypectomyHot Snare Polypectomy(Saline Injection)
PerforationGastrointestinal disorders0/1670/155
Most frequent other events
Most frequent other events
EventHot Snare PolypectomyHot Snare Polypectomy(Saline Injection)
Immediate bleedingGastrointestinal disorders17/16712/155
Delayed bleedingGastrointestinal disorders0/1671/155
Post-polypectomy syndromeGastrointestinal disorders0/1670/155

Baseline characteristics

Age, Continuous
Age, Continuous(years)Hot Snare PolypectomyHot Snare Polypectomy(Saline Injection)Total
Mean62.8 ± 10.763.0 ± 10.862.9 ± 10.7
Sex/Gender, Customized
Sex/Gender, Customized(participants)Hot Snare PolypectomyHot Snare Polypectomy(Saline Injection)Total
Male11498212
Female5357110
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Hot Snare PolypectomyHot Snare Polypectomy(Saline Injection)Total
Hispanic or Latino000
Not Hispanic or Latino167155322
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Hot Snare PolypectomyHot Snare Polypectomy(Saline Injection)Total
American Indian or Alaska Native000
Asian167155322
Native Hawaiian or Other Pacific Islander000
Black or African American000
White000
More than one race000
Unknown or Not Reported000
08

Study locations

1 site
  • Division of Gastroenterology; Seoul St. Mary's hospital
    Seoul, 137-701, Korea, Republic of
09

References and documents

Publications

  • Dwyer JP, Tan JYC, Urquhart P, Secomb R, Bunn C, Reynolds J, La Nauze R, Kemp W, Roberts S, Brown G. A prospective comparison of cold snare polypectomy using traditional or dedicated cold snares for the resection of small sessile colorectal polyps. Endosc Int Open. 2017 Nov;5(11):E1062-E1068. doi: 10.1055/s-0043-113564. Epub 2017 Oct 27. PubMed 29250580 ↗
  • Kim JS, Lee BI, Choi H, Jun SY, Park ES, Park JM, Lee IS, Kim BW, Kim SW, Choi MG. Cold snare polypectomy versus cold forceps polypectomy for diminutive and small colorectal polyps: a randomized controlled trial. Gastrointest Endosc. 2015 Mar;81(3):741-7. doi: 10.1016/j.gie.2014.11.048. PubMed 25708763 ↗
  • Kawamura T, Takeuchi Y, Asai S, Yokota I, Akamine E, Kato M, Akamatsu T, Tada K, Komeda Y, Iwatate M, Kawakami K, Nishikawa M, Watanabe D, Yamauchi A, Fukata N, Shimatani M, Ooi M, Fujita K, Sano Y, Kashida H, Hirose S, Iwagami H, Uedo N, Teramukai S, Tanaka K. A comparison of the resection rate for cold and hot snare polypectomy for 4-9 mm colorectal polyps: a multicentre randomised controlled trial (CRESCENT study). Gut. 2018 Nov;67(11):1950-1957. doi: 10.1136/gutjnl-2017-314215. Epub 2017 Sep 28. PubMed 28970290 ↗
  • Kim SJ, Lee BI, Jung ES, Kim JS, Jun SY, Kim W, Ham H, Kim M, Lee SH, Lee HH, Park JM, Choi MG. Hot snare polypectomy versus endoscopic mucosal resection for small colorectal polyps: a randomized controlled trial. Surg Endosc. 2021 Sep;35(9):5096-5103. doi: 10.1007/s00464-020-07994-7. Epub 2020 Sep 28. PubMed 32989532 ↗

Study documents

  • Protocol and statistical analysis plan · Aug 30, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 14, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02239536
Lead sponsor
Bo-In Lee
Collaborators
St Vincent's Hospital, Incheon St.Mary's Hospital
Responsible party
Bo-In Lee (MD, PhD, Seoul St. Mary's Hospital) — Sponsor-investigator
First posted
Sep 12, 2014
Start date
Jun 2014
Primary completion
Dec 2017
Completion
Feb 2018
Results posted
Apr 14, 2020
Last update
Apr 14, 2020

Study contacts

Bo-In Lee
principal investigator · Seoul St. Mary's Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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