Cold Versus Hot Snare Endoscopic Mucosal Resection for Intermediate-Size Flat Nonpedunculated Colorectal Polyps
10. august 2026 opdateret af: Nanfang Hospital, Southern Medical University
Cold Versus Hot Snare Endoscopic Mucosal Resection for Intermediate-Size Flat Nonpedunculated Colorectal Polyps: A Multicenter, Prospective, Randomized, Non-Inferiority Clinical Trial
This multicenter, prospective, randomized, non-inferiority trial aimed to compare the efficacy and safety of cold snare endoscopic mucosal resection (CS-EMR) and hot snare endoscopic mucosal resection (HS-EMR) for resection of intermediate-size (10-20 mm) flat nonpedunculated colorectal polyps.
Studieoversigt
Status
Ikke rekrutterer endnu
Betingelser
Undersøgelsestype
Interventionel
Tilmelding (Anslået)
968
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Bitao Lin, MD
- Telefonnummer: +86 137-2532-1385
- E-mail: linbitao1996@163.com
Undersøgelse Kontakt Backup
- Navn: Zelong Han, MD
- Telefonnummer: +86 189-2506-1960
- E-mail: hanzelong2025@163.com
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ingen
Beskrivelse
Inclusion Criteria:
- Subjects aged 18-75 years, irrespective of gender;
- Flat sessile colorectal polyps confirmed by colonoscopy, classified as Paris classification 0-Is or 0-IIa, with a measured diameter ranging from 10 to 20 mm;
- Subjects voluntarily agree to receive endoscopic treatment and sign written informed consent.
Exclusion Criteria:
- Colonoscopic findings suggestive of submucosal invasion or malignant transformation of colorectal polyps;
- Previous history of colorectal surgery;
- Previous history of inflammatory bowel disease, familial adenomatous polyposis, or colorectal cancer;
- Failure to discontinue anticoagulant and antiplatelet medications for a minimum of 1 week prior to the procedure;
- Known coagulation disorders or bleeding diathesis;
- Pregnant or breastfeeding women;
- Patients complicated with malignant tumors, severe cardiovascular and cerebrovascular diseases, liver cirrhosis, chronic kidney disease, or other severe comorbidities that preclude tolerance to endoscopic resection.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Cold snare endoscopic mucosal resection (CS-EMR)
Eligible colorectal polyps measuring 10-20 mm will be resected using CS-EMR.
|
During CS-EMR, methylene blue-stained epinephrine saline is injected into the submucosa surrounding the lesion to achieve submucosal lifting.
The polyp together with 1-2 mm of adjacent mucosa is subsequently tightly snared and mechanically transected.
|
|
Aktiv komparator: Hot snare endoscopic mucosal resection (HS-EMR)
Eligible colorectal polyps measuring 10-20 mm will be resected using HS-EMR.
|
During HS-EMR, methylene blue-stained epinephrine saline is injected into the submucosa surrounding the lesion to achieve submucosal lifting.
The snare is positioned around the lesion, and electrocautery is delivered via the electrosurgical generator for transection.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
complete resection rate
Tidsramme: Within 14 days
|
All five biopsy specimens harvested from the resection margins after EMR resection yielded negative pathological findings.
These five biopsy samples consisted of four specimens collected from the four quadrants of the resection wound margin and one specimen obtained from the wound base.
|
Within 14 days
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Forsinket perforering
Tidsramme: Inden for 14 dage
|
Enhver perforering inden for 14 dage
|
Inden for 14 dage
|
|
en bloc resection rate
Tidsramme: Within one days
|
The lesion was completely excised under endoscope and a single specimen was obtained.
|
Within one days
|
|
Unresectable rate of CS-EMR
Tidsramme: Within one day
|
A resection procedure that needed high-frequency electric current.
|
Within one day
|
|
Intraprocedural bleeding
Tidsramme: Within one day
|
Intraoperative arterial bleeding or active mucosal oozing lasting more than 30 seconds that requires endoscopic hemostatic intervention.
|
Within one day
|
|
Intraprocedural perforation
Tidsramme: Within one day
|
Endoscopic observation of perforation requiring sealing with clips
|
Within one day
|
|
Procedural time
Tidsramme: Within one day
|
The duration from the first occurrence of injection needle under endoscope visual field to complete removal of the resected polyp
|
Within one day
|
|
Delayed bleeding
Tidsramme: Within 14 days
|
haemorrhage after colonoscopy requiring endoscopic haemostasis with 14 days.
|
Within 14 days
|
|
Number of clips used
Tidsramme: Within one day
|
The number of clips used for each resected polyp
|
Within one day
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Samarbejdspartnere
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Anslået)
1. august 2026
Primær færdiggørelse (Anslået)
1. oktober 2028
Studieafslutning (Anslået)
1. februar 2029
Datoer for studieregistrering
Først indsendt
10. august 2026
Først indsendt, der opfyldte QC-kriterier
10. august 2026
Først opslået (Faktiske)
13. august 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
13. august 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
10. august 2026
Sidst verificeret
1. august 2026
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- NFEC-2026-545
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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